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Sunday, May 31, 2020

THESAVRVS GRICEIANVM -- in twelve volumes, vol. X.



prolatum – participle for ‘proferre,’ to utter. A much better choice than Austin’s pig-latin “utteratum”! Grice prefferd Latinate when going serious. While the verb is ‘profero – the participle corresponds to the ‘implicatum’: what the emissor profers. profer (v.)c. 1300, "to utter, express," from Old French proferer (13c.) "utter, present verbally, pronounce," from Latin proferre "to bring forth, produce," figuratively "make known, publish, quote, utter." Sense confused with proffer. Related: Proferedprofering.


process-product ambiguity, an ambiguity that occurs when a noun can refer either to a process or activity or to the product of that process or activity. E.g., ‘The definition was difficult’ could mean either that the activity of defining was a difficult one to perform, or that the definiens the form of words proposed as equivalent to the term being defined that the definer produced was difficult to understand. Again, ‘The writing absorbed her attention’ leaves it unclear whether it was the activity of writing or a product of that activity that she found engrossing. Philosophically significant terms that might be held to exhibit processproduct ambiguity include: ‘analysis’, ‘explanation’, ‘inference’, ‘thought’. P.Mac. process theology, any theology strongly influenced by the theistic metaphysics of Whitehead or Hartshorne; more generally, any theology that takes process or change as basic characteristics of all actual beings, including God. Those versions most influenced by Whitehead and Hartshorne share a core of convictions that constitute the most distinctive theses of process theology: God is constantly growing, though certain abstract features of God e.g., being loving remain constant; God is related to every other actual being and is affected by what happens to it; every actual being has some self-determination, and God’s power is reconceived as the power to lure attempt to persuade each actual being to be what God wishes it to be. These theses represent significant differences from ideas of God common in the tradition of Western theism, according to which God is unchanging, is not really related to creatures because God is not affected by what happens to them, and has the power to do whatever it is logically possible for God to do omnipotence. Process theologians also disagree with the idea that God knows the future in all its details, holding that God knows only those details of the future that are causally necessitated by past events. They claim these are only certain abstract features of a small class of events in the near future and of an even smaller class in the more distant future. Because of their understanding of divine power and their affirmation of creaturely self-determination, they claim that they provide a more adequate theodicy. Their critics claim that their idea of God’s power, if correct, would render God unworthy of worship; some also make this claim about their idea of God’s knowledge, preferring a more traditional idea of omniscience. Although Whitehead and Hartshorne were both philosophers rather than theologians, process theology has been more influential among theologians. It is a major current in contemporary  Protestant theology and has attracted the attention of some Roman Catholic theologians as well. It also has influenced some biblical scholars who are attempting to develop a distinctive process hermeneutics.
production theory, the economic theory dealing with the conversion of factors of production into consumer goods. In capitalistic theories that assume ideal markets, firms produce goods from three kinds of factors: capital, labor, and raw materials. Production is subject to the constraint that profit the difference between revenues and costs be maximized. The firm is thereby faced with the following decisions: how much to produce, what price to charge for the product, what proportions to combine the three kinds of factors in, and what price to pay for the factors. In markets close to perfect competition, the firm will have little control over prices so the decision problem tends to reduce to the amounts of factors to use. The range of feasible factor combinations depends on the technologies available to firms. Interesting complications arise if not all firms have access to the same technologies, or if not all firms make accurate responses concerning technological changes. Also, if the scale of production affects the feasible technologies, the firms’ decision process must be subtle. In each of these cases, imperfect competition will result. Marxian economists think that the concepts used in this kind of production theory have a normative component. In reality, a large firm’s capital tends to be owned by a rather small, privileged class of non-laborers and labor is treated as a commodity like any other factor. This might lead to the perception that profit results primarily from capital and, therefore, belongs to its owners. Marxians contend that labor is primarily responsible for profit and, consequently, that labor is entitled to more than the market wage. 
professional ethics, a term designating one or more of 1 the justified moral values that should govern the work of professionals; 2 the moral values that actually do guide groups of professionals, whether those values are identified as a principles in codes of ethics promulgated by professional societies or b actual beliefs and conduct of professionals; and 3 the study of professional ethics in the preceding senses, either i normative philosophical inquiries into the values desirable for professionals to embrace, or ii descriptive scientific studies of the actual beliefs and conduct of groups of professionals. Professional values include principles of obligation and rights, as well as virtues and personal moral ideals such as those manifested in the lives of Jane Addams, Albert Schweitzer, and Thurgood Marshall. Professions are defined by advanced expertise, social organizations, society-granted monopolies over services, and especially by shared commitments to promote a distinctive public good such as health medicine, justice law, or learning education. These shared commitments imply special duties to make services available, maintain confidentiality, secure informed consent for services, and be loyal to clients, employers, and others with whom one has fiduciary relationships. Both theoretical and practical issues surround these duties. The central theoretical issue is to understand how the justified moral values governing professionals are linked to wider values, such as human rights. Most practical dilemmas concern how to balance conflicting duties. For example, what should attorneys do when confidentiality requires keeping information secret that might save the life of an innocent third party? Other practical issues are problems of vagueness and uncertainty surrounding how to apply duties in particular contexts. For example, does respect for patients’ autonomy forbid, permit, or require a physician to assist a terminally ill patient desiring suicide? Equally important is how to resolve conflicts of interest in which self-seeking places moral values at risk. 
proof by recursion, also called proof by mathematical induction, a method for conclusively demonstrating the truth of universal propositions about the natural numbers. The system of natural numbers is construed as an infinite sequence of elements beginning with the number 1 and such that each subsequent element is the immediate successor of the preceding element. The immediate successor of a number is the sum of that number with 1. In order to apply this method to show that every number has a certain chosen property it is necessary to demonstrate two subsidiary propositions often called respectively the basis step and the inductive step. The basis step is that the number 1 has the chosen property; the inductive step is that the successor of any number having the chosen property is also a number having the chosen property in other words, for every number n, if n has the chosen property then the successor of n also has the chosen property. The inductive step is itself a universal proposition that may have been proved by recursion. The most commonly used example of a theorem proved by recursion is the remarkable fact, known before the time of Plato, that the sum of the first n odd numbers is the square of n. This proposition, mentioned prominently by Leibniz as requiring and having demonstrative proof, is expressed in universal form as follows: for every number n, the sum of the first n odd numbers is n2. 1 % 12, 1 ! 3 % 22, 1 ! 3 ! 5 % 32, and so on. Rigorous formulation of a proof by recursion often uses as a premise the proposition called, since the time of De Morgan, the principle of mathematical induction: every property belonging to 1 and belonging to the successor of every number to which it belongs is a property that belongs without exception to every number. Peano took the principle of mathematical induction as an axiom in his 9 axiomatization of arithmetic or the theory of natural numbers. The first acceptable formulation of this principle is attributed to Pascal. 
proof theory, a branch of mathematical logic founded by David Hilbert in the 0s to pursue Hilbert’s Program. The foundational problems underlying that program had been formulated around the turn of the century, e.g., in Hilbert’s famous address to the International Congress of Mathematicians in Paris 0. They were closely connected with investigations on the foundations of analysis carried out by Cantor and Dedekind; but they were also related to their conflict with Kronecker on the nature of mathematics and to the difficulties of a completely unrestricted notion of set or multiplicity. At that time, the central issue for Hilbert was the consistency of sets in Cantor’s sense. He suggested that the existence of consistent sets multiplicities, e.g., that of real numbers, could be secured by proving the consistency of a suitable, characterizing axiomatic system; but there were only the vaguest indications on how to do that. In a radical departure from standard practice and his earlier hints, Hilbert proposed four years later a novel way of attacking the consistency problem for theories in Über die Grundlagen der Logik und der Arithmetik 4. This approach would require, first, a strict formalization of logic together with mathematics, then consideration of the finite syntactic configurations constituting the joint formalism as mathematical objects, and showing by mathematical arguments that contradictory formulas cannot be derived. Though Hilbert lectured on issues concerning the foundations of mathematics during the subsequent years, the technical development and philosophical clarification of proof theory and its aims began only around 0. That involved, first of all, a detailed description of logical calculi and the careful development of parts of mathematics in suitable systems. A record of the former is found in Hilbert and Ackermann, Grundzüge der theoretischen Logik 8; and of the latter in Supplement IV of Hilbert and Bernays, Grundlagen der Mathematik II 9. This presupposes the clear distinction between metamathematics and mathematics introduced by Hilbert. For the purposes of the consistency program metamathematics was now taken to be a very weak part of arithmetic, so-called finitist mathematics, believed to correspond to the part of mathematics that was accepted by constructivists like Kronecker and Brouwer. Additional metamathematical issues concerned the completeness and decidability of theories. The crucial technical tool for the pursuit of the consistency problem was Hilbert’s e-calculus. The metamathematical problems attracted the collaboration of young and quite brilliant mathematicians with philosophical interests; among them were Paul Bernays, Wilhelm Ackermann, John von Neumann, Jacques Herbrand, Gerhard Gentzen, and Kurt Schütte. The results obtained in the 0s were disappointing when measured against the hopes and ambitions: Ackermann, von Neumann, and Herbrand established essentially the consistency of arithmetic with a very restricted principle of induction. That limits of finitist considerations for consistency proofs had been reached became clear in 1 through Gödel’s incompleteness theorems. Also, special cases of the decision problem for predicate logic Hilbert’s Entscheidungsproblem had been solved; its general solvability was made rather implausible by some of Gödel’s results in his 1 paper. The actual proof of unsolvability had to wait until 6 for a conceptual clarification of ‘mechanical procedure’ or ‘algorithm’; that was achieved through the work of Church and Turing. The further development of proof theory is roughly characterized by two complementary tendencies: 1 the extension of the metamathematical frame relative to which “constructive” consistency proofs can be obtained, and 2 the refined formalization of parts of mathematics in theories much weaker than set theory or even full second-order arithmetic. The former tendency started with the work of Gödel and Gentzen in 3 establishing the consistency of full classical arithmetic relative to intuitionistic arithmetic; it led in the 0s and 0s to consistency proofs of strong subsystems of secondorder arithmetic relative to intuitionistic theories of constructive ordinals. The latter tendency reaches back to Weyl’s book Das Kontinuum 8 and culminated in the 0s by showing that the classical results of mathematical analysis can be formally obtained in conservative extensions of first-order arithmetic. For the metamathematical work Gentzen’s introduction of sequent calculi and the use of transfinite induction along constructive ordinals turned out to be very important, as well as Gödel’s primitive recursive functionals of finite type. The methods and results of proof theory are playing, not surprisingly, a significant role in computer science. Work in proof theory has been motivated by issues in the foundations of mathematics, with the explicit goal of achieving epistemological reductions of strong theories for mathematical practice like set theory or second-order arithmetic to weak, philosophically distinguished theories like primitive recursive arithmetic. As the formalization of mathematics in strong theories is crucial for the metamathematical approach, and as the programmatic goal can be seen as a way of circumventing the philosophical issues surrounding strong theories, e.g., the nature of infinite sets in the case of set theory, Hilbert’s philosophical position is often equated with formalism  in the sense of Frege in his Über die Grundlagen der Geometrie 306 and also of Brouwer’s inaugural address Intuitionism and Formalism 2. Though such a view is not completely unsupported by some of Hilbert’s polemical remarks during the 0s, on balance, his philosophical views developed into a sophisticated instrumentalism, if that label is taken in Ernest Nagel’s judicious sense The Structure of Science, 1. Hilbert’s is an instrumentalism emphasizing the contentual motivation of mathematical theories; that is clearly expressed in the first chapter of Hilbert and Bernays’s Grundlagen der Mathematik I 4. A sustained philosophical analysis of proof-theoretic research in the context of broader issues in the philosophy of mathematics was provided by Bernays; his penetrating essays stretch over five decades and have been collected in Abhandlungen zur Philosophie der Mathematik 6. 
propensity, an irregular or non-necessitating causal disposition of an object or system to produce some result or effect. Propensities are usually conceived as essentially probabilistic in nature. A die may be said to have a propensity of “strength” or magnitude 1 /6 to turn up a 3 if thrown from a dice box, of strength 1 /3 to turn up, say, a 3 or 4, etc. But propensity talk is arguably appropriate only when determinism fails. Strength is often taken to vary from 0 to 1. Popper regarded the propensity notion as a new physical or metaphysical hypothesis, akin to that of forces. Like Peirce, he deployed it to interpret probability claims about single cases: e.g., the probability of this radium atom’s decaying in 1,600 years is 1 /2. On relative frequency interpretations, probability claims are about properties of large classes such as relative frequencies of outcomes in them, rather than about single cases. But single-case claims appear to be common in quantum theory. Popper advocated a propensity interpretation of quantum theory. Propensities also feature in theories of indeterministic or probabilistic causation. Competing theories about propensities attribute them variously to complex systems such as chance or experimental set-ups or arrangements a coin and tossing device, to entities within such set-ups the coin itself, and to particular trials of such set-ups. Long-run theories construe propensities as dispositions to give rise to certain relative frequencies of, or probability distributions over, outcomes in long runs of trials, which are sometimes said to “manifest” or “display” the propensities. Here a propensity’s strength is identical to some such frequency. By contrast, single-case theories construe propensities as dispositions of singular trials to bring about particular outcomes. Their existence, not their strength, is displayed by such an outcome. Here frequencies provide evidence about propensity strength. But the two can always differ; they converge with a limiting probability of 1 in an appropriate long run. 
property, roughly, an attribute, characteristic, feature, trait, or aspect. propensity property 751    751 Intensionality. There are two salient ways of talking about properties. First, as predicables or instantiables. For example, the property red is predicable of red objects; they are instances of it. Properties are said to be intensional entities in the sense that distinct properties can be truly predicated of i.e., have as instances exactly the same things: the property of being a creature with a kidney & the property of being a creature with a heart, though these two sets have the same members. Properties thus differ from sets collections, classes; for the latter satisfy a principle of extensionality: they are identical if they have the same elements. The second salient way of talking about properties is by means of property abstracts such as ‘the property of being F’. Such linguistic expressions are said to be intensional in the following semantical vs. ontological sense: ‘the property of being F’ and ‘the property of being G’ can denote different properties even though the predicates ‘F’ and ‘G’ are true of exactly the same things. The standard explanation Frege, Russell, Carnap, et al. is that ‘the property of being F’ denotes the property that the predicate ‘F’ expresses. Since predicates ‘F’ and ‘G’ can be true of the same things without being synonyms, the property abstracts ‘being F’ and ‘being G’ can denote different properties. Identity criteria. Some philosophers believe that properties are identical if they necessarily have the same instances. Other philosophers hold that this criterion of identity holds only for a special subclass of properties  those that are purely qualitative  and that the properties for which this criterion does not hold are all “complex” e.g., relational, disjunctive, conditional, or negative properties. On this theory, complex properties are identical if they have the same form and their purely qualitative constituents are identical. Ontological status. Because properties are a kind of universal, each of the standard views on the ontological status of universals has been applied to properties as a special case. Nominalism: only particulars and perhaps collections of particulars exist; therefore, either properties do not exist or they are reducible following Carnap et al. to collections of particulars including perhaps particulars that are not actual but only possible. Conceptualism: properties exist but are dependent on the mind. Realism: properties exist independently of the mind. Realism has two main versions. In rebus realism: a property exists only if it has instances. Ante rem realism: a property can exist even if it has no instances. For example, the property of being a man weighing over ton has no instances; however, it is plausible to hold that this property does exist. After all, this property seems to be what is expressed by the predicate ‘is a man weighing over a ton’. Essence and accident. The properties that a given entity has divide into two disjoint classes: those that are essential to the entity and those that are accidental to it. A property is essential to an entity if, necessarily, the entity cannot exist without being an instance of the property. A property is accidental to an individual if it is possible for the individual to exist without being an instance of the property. Being a number is an essential property of nine; being the number of the planets is an accidental property of nine. Some philosophers believe that all properties are either essential by nature or accidental by nature. A property is essential by nature if it can be an essential property of some entity and, necessarily, it is an essential property of each entity that is an instance of it. The property of being self-identical is thus essential by nature. However, it is controversial whether every property that is essential to something must be essential by nature. The following is a candidate counterexample. If this automobile backfires loudly on a given occasion, loudness would seem to be an essential property of the associated bang. That particular bang could not exist without being loud. If the automobile had backfired softly, that particular bang would not have existed; an altogether distinct bang  a soft bang  would have existed. By contrast, if a man is loud, loudness is only an accidental property of him; he could exist without being loud. Loudness thus appears to be a counterexample: although it is an essential property of certain particulars, it is not essential by nature. It might be replied echoing Aristotle that a loud bang and a loud man instantiate loudness in different ways and, more generally, that properties can be predicated instantiated in different ways. If so, then one should be specific about which kind of predication instantiation is intended in the definition of ‘essential by nature’ and ‘accidental by nature’. When this is done, the counterexamples might well disappear. If there are indeed different ways of being predicated instantiated, most of the foregoing remarks about intensionality, identity criteria, and the ontological status of properties should be refined accordingly. 



propositio universalis: cf. substitutional account of universal quantification, referred to by Grice for his treatment of what he calls a Ryleian agitation caused by his feeling Byzantine. Vide inverted A. A proposition (protasis), then, is a sentence affirming or denying something of something; and this is either universal or particular or indefinite. By universal I mean a statement that something belongs to all or none of something; by particular that it belongs to some or not to some or not to all; by indefinite that it does or does not belong, without any mark of being universal or particular, e.g. ‘contraries are subjects of the same science’, or ‘pleasure is not good’. (Prior Analytics I, 1, 24a16–21.)

propositional complexum: In logic, the first proposition of a syllogism (class.): “propositio est, per quem locus is breviter exponitur, ex quo vis omnis oportet emanet ratiocinationis,” Cic. Inv. 1, 37, 67; 1, 34, 35; Auct. Her. 2, 18, 28.— B. Transf. 1. A principal subject, theme (class.), Cic. de Or. 3, 53; Sen. Ben. 6, 7, 1; Quint. 5, 14, 1.— 2. Still more generally, a proposition of any kind (post-Aug.), Quint. 7, 1, 47, § 9; Gell. 2, 7, 21.—Do not expect Grice to use the phrase ‘propositional content,’ as Hare does so freely. Grices proposes a propositional complexum, rather, which frees him from a commitment to a higher-order calculus and the abstract entity of a feature or a proposition. Grice regards a proposition as an extensional family of propositional complexa (Paul saw Peter; Peter was seen by Paul). The topic of a propositional complex Grice regards as Oxonian in nature. Peacocke struggles with the same type of problems, in his essays on content. Only a perception-based account of content in terms of qualia gets the philosopher out of the vicious circle of appealing to a linguistic entity to clarify a psychological entity. One way to discharge the burden of giving an account of a proposition involves focusing on a range of utterances, the formulation of which features no connective or quantifier. Each expresses a propositional complexum which consists of a sequence simplex-1 and simplex-2, whose elements would be a set and an ordered sequence of this or that individuum which may be a member of the set. The propositional complexum ‘Fido is shaggy’ consists of a sequence of the set of shaggy individua and the singleton consisting of the individuum Fido. ‘Smith loves Fido’ is a propositional complexum, i. e., a sequence whose first element is the class “love” correlated to a two-place predicate) and a the ordered pair of the singletons Smith and Fido. We define alethic satisfactoriness. A propositional complexum is alethically satisfactory just in case the sequence is a member of the set. A “proposition” (prosthesis) simpliciter is defined as a family of propositional complexa. Family unity may vary in accordance with context. 

proposition, an abstract object said to be that to which a person is related by a belief, desire, or other psychological attitude, typically expressed in language containing a psychological verb ‘think’, ‘deny’, ‘doubt’, etc. followed by a thatclause. The psychological states in question are called propositional attitudes. When I believe that snow is white I stand in the relation of believing to the proposition that snow is white. When I hope that the protons will not decay, hope relates me to the proposition that the protons will not decay. A proposition can be a common object for various attitudes of various agents: that the protons will not decay can be the object of my belief, my hope, and your fear. A sentence expressing an attitude is also taken to express the associated proposition. Because ‘The protons will not decay’ identifies my hope, it identifies the proposition to which my hope relates me. Thus the proposition can be the shared meaning of this sentence and all its synonyms, in English or elsewhere e.g., ‘die Protonen werden nicht zerfallen’. This, in sum, is the traditional doctrine of propositions. Although it seems indispensable in some form  for theorizing about thought and language, difficulties abound. Some critics regard propositions as excess baggage in any account of meaning. But unless this is an expression of nominalism, it is confused. Any systematic theory of meaning, plus an apparatus of sets or properties will let us construct proposition-like objects. The proposition a sentence S expresses might, e.g., be identified with a certain set of features that determines S’s meaning. Other sentences with these same features would then express the same proposition. A natural way to associate propositions with sentences is to let the features in question be semantically significant features of the words from which sentences are built. Propositions then acquire the logical structures of sentences: they are atomic, conditional, existential, etc. But combining the view of propositions as meanings with the traditional idea of propositions as bearers of truthvalues brings trouble. It is assumed that two sentences that express the same proposition have the same truth-value indeed, that sentences have their truth-values in virtue of the propositions they express. Yet if propositions are also meanings, this principle fails for sentences with indexical elements: although ‘I am pale’ has a single meaning, two utterances of it can differ in truth-value. In response, one may suggest that the proposition a sentence S expresses depends both on the linguistic meaning of S and on the referents of S’s indexical elements. But this reveals that proposition is a quite technical concept  and one that is not motivated simply by a need to talk about meanings. Related questions arise for propositions as the objects of propositional attitudes. My belief that I am pale may be true, yours that you are pale false. So our beliefs should take distinct propositional objects. Yet we would each use the same sentence, ‘I am pale’, to express our belief. Intuitively, your belief and mine also play similar cognitive roles. We may each choose the sun exposure, clothing, etc., that we take to be appropriate to a fair complexion. So our attitudes seem in an important sense to be the same  an identity that the assignment of distinct propositional objects hides. Apparently, the characterization of beliefs e.g. as being propositional attitudes is at best one component of a more refined, largely unknown account. Quite apart from complications about indexicality, propositions inherit standard difficulties about meaning. Consider the beliefs that Hesperus is a planet and that Phosphorus is a planet. It seems that someone might have one but not the other, thus that they are attitudes toward distinct propositions. This difference apparently reflects the difference in meaning between the sentences ‘Hesperus is a planet’ and ‘Phosphorus is a planet’. The principle would be that non-synonymous sentences express distinct propositions. But it is unclear what makes for a difference in meaning. Since the sentences agree in logico-grammatical structure and in the referents of their terms, their specific meanings must depend on some more subtle feature that has resisted definition. Hence our concept of proposition is also only partly defined. Even the idea that the sentences here express the same proposition is not easily refuted. What such difficulties show is not that the concept of proposition is invalid but that it belongs to a still rudimentary descriptive scheme. It is too thoroughly enmeshed with the concepts of meaning and belief to be of use in solving their attendant problems. This observation is what tends, through a confusion, to give rise to skepticism about propositions. One may, e.g., reasonably posit structured abstract entities  propositions  that represent the features on which the truth-values of sentences depend. Then there is a good sense in which a sentence is true in virtue of the proposition it expresses. But how does the use of words in a certain context associate them with a particular proposition? Lacking an answer, we still cannot explain why a given sentence is true. Similarly, one cannot explain belief as the acceptance of a proposition, since only a substantive theory of thought would reveal how the mind “accepts” a proposition and what it does to accept one proposition rather than another. So a satisfactory doctrine of propositions remains elusive. 
propositional function, an operation that, when applied to something as argument or to more than one thing in a given order as arguments, yields a truth-value as the value of that function for that argument or those arguments. This usage presupposes that truth-values are objects. A function may be singulary, binary, ternary, etc. A singulary propositional function is applicable to one thing and yields, when so applied, a truth-value. For example, being a prime number, when applied to the number 2, yields truth; negation, when applied to truth, yields falsehood. A binary propositional function is applicable to two things in a certain order and yields, when so applied, a truth-value. For example, being north of when applied to New York and Boston in that order yields falsehood. Material implication when applied to falsehood and truth in that order yields truth. The term ‘propositional function’ has a second use, to refer to an operation that, when applied to something as argument or to more than one thing in a given order as arguments, yields a proposition as the value of the function for that argument or those arguments. For example, being a prime number when applied to 2 yields the proposition that 2 is a prime number. Being north of, when applied to New York and Boston in that order, yields the proposition that New York is north of Boston. This usage presupposes that propositions are objects. In a third use, ‘propositional function’ designates a sentence with free occurrences of variables. Thus, ‘x is a prime number’, ‘It is not the case that p’, ‘x is north of y’ and ‘if p then q’ are propositional functions in this sense. C.S. propositional justification.
propositional opacity, failure of a clause to express any particular proposition especially due to the occurrence of pronouns or demonstratives. If having a belief about an individual involves a relation to a proposition, and if a part of the proposition is a way of representing the individual, then belief characterizations that do not indicate the believer’s way of representing the individual could be called propositionally opaque. They do not show all of the propositional elements. For example, ‘My son’s clarinet teacher believes that he should try the bass drum’ would be propositionally opaque because ‘he’ does not indicate how my son John’s teacher represents John, e.g. as his student, as my son, as the boy now playing, etc. This characterization of the example is not appropriate if propositions are as Russell conceived them, sometimes containing the individuals themselves as constituents, because then the propositional constituent John has been referred to. Generally, a characterization of a propositional    754 attitude is propositionally opaque if the expressions in the embedded clause do not refer to the propositional constituents. It is propositionally transparent if the expressions in the embedded clause do so refer. As a rule, referentially opaque contexts are used in propositionally transparent attributions if the referent of a term is distinct from the corresponding propositional constituent. 
proprietates terminorum Latin, ‘properties of terms’, in medieval logic from the twelfth century on, a cluster of semantic properties possessed by categorematic terms. For most authors, these properties apply only when the terms occur in the context of a proposition. The list of such properties and the theory governing them vary from author to author, but always include 1 suppositio. Some authors add 2 appellatio ‘appellating’, ‘naming’, ‘calling’, often not sharply distinguishing from suppositio, the property whereby a term in a certain proposition names or is truly predicable of things, or in some authors of presently existing things. Thus ‘philosophers’ in ‘Some philosophers are wise’ appellates philosophers alive today. 3 Ampliatio ‘ampliation’, ‘broadening’, whereby a term refers to past or future or merely possible things. The reference of ‘philosophers’ is ampliated in ‘Some philosophers were wise’. 4 Restrictio ‘restriction’, ‘narrowing’, whereby the reference of a term is restricted to presently existing things ‘philosophers’ is so restricted in ‘Some philosophers are wise’, or otherwise narrowed from its normal range ‘philosophers’ in ‘Some Grecian philosophers were wise’. 5 Copulatio ‘copulation’, ‘coupling’, which is the type of reference adjectives have ‘wise’ in ‘Some philosophers are wise’, or alternatively the semantic function of the copula. Other meanings too are sometimes given to these terms, depending on the author. Appellatio especially was given a wide variety of interpretations. In particular, for Buridan and other fourteenth-century Continental authors, appellatio means ‘connotation’. Restrictio and copulatio tended to drop out of the literature, or be treated only perfunctorily, after the thirteenth century. 

proprium: idion. See Nicholas White's "The Origin of Aristotle's Essentialism," Review of Metaphysics ~6. (September 1972): ... vice versa. The proprium is a necessary, but non-essential, property. ... Alan Code pointed this out to me. ' Does Aristotle ... The proprium is defined by the fact that it only holds of a particular subject or ... Of the appropriate answers some are more specific or distinctive (idion) and are in ... and property possession comes close to what Alan Code in a seminal paper ...  but "substance of" is what is "co-extensive (idion) with each thing" (1038b9); so ... by an alternative name or definition, and by a proprium) and the third which is ... Woods's idea (recently nicknamed "Izzing before Having" by Code and Grice) . As my chairmanship was winding down, I suggested to Paul Grice on one of his ... in Aristotle's technical sense of an idion (Latin proprium), i.e., a characteristic or feature ... Code, which, arguably, is part of the theory of Izzing and Having: D. Keyt. a proprium, since proprium belongs to the genus of accident. ... Similarly, Code claims (10): 'In its other uses the predicate “being'' signifies either “what ... Grice adds a few steps to show that the plurality of universals signified correspond ... Aristotle elsewhere calls an idion.353 If one predicates the genus in the absence of. has described it by a paronymous form, nor as a property (idion), nor ... terminology of Code and Grice.152 Thus there is no indication that they are ... (14,20-31) 'Genus' and 'proprium' (ἰδίου) are said homonymously in ten ways, as are. Ackrill replies to this line of argument (75) as follows: [I]t is perfectly clear that Aristotle’s fourfold classification is a classification of things and not names, and that what is ‘said of’ something as subject is itself a thing (a species or genus) and not a name. Sometimes, indeed, Aristotle will speak of ‘saying’ or ‘predicating’ a name of a subject; but it is not linguistic items but the things they signify which are ‘said of a subject’… Thus at 2a19 ff. Aristotle sharply distinguishes things said of subjects from the names of those things. This last argument seems persuasive on textual grounds. After all, τὰ καθ᾽ ὑποκειμένου λεγόμενα ‘have’ definitions and names (τῶν καθ᾽ υποκειμένου λεγομένων… τοὔνομα καὶ τὸν λὸγον, 2a19-21): it is not the case that they ‘are’ definitions and names, to adapt the terminology of Code and Grice.152 See A. Code, ‘Aristotle: Essence and Accident’, in Grandy and Warner (eds.), Philosophical Grounds of Rationality (Oxford, 1986), 411-39: particulars have their predicables, but Forms are their predicables. Thus there is no indication that they are linguistic terms in their own right.proprium, one of Porphyry’s five predicables, often tr. as ‘property’ or ‘attribute’; but this should not be confused with the broad modern sense in which any feature of a thing may be said to be a property of it. A proprium is a nonessential peculiarity of a species. There are no propria of individuals or genera generalissima, although they may have other uniquely identifying features. A proprium necessarily holds of all members of its species and of nothing else. It is not mentioned in a real definition of the species, and so is not essential to it. Yet it somehow follows from the essence or nature expressed in the real definition. The standard example is risibility the ability to laugh as a proprium of the species man. The real definition of ‘man’ is ‘rational animal’. There is no mention of any ability to laugh. Nevertheless anything that can laugh has both the biological apparatus to produce the sounds and so is an animal and also a certain wit and insight into humor and so is rational. Conversely, any rational animal will have both the vocal chords and diaphragm required for laughing since it is an animal, although the inference may seem too quick and also the mental wherewithal to see the point of a joke since it is rational. Thus any rational animal has what it takes to laugh. In short, every man is risible, and conversely, but risibility is not an essential feature of man. 


Prosona – Grice’s favoured spelling for ‘person’ – “seeing that it means a mask to improve sonorisation’ personalism, a Christian socialism stressing social activism and personal responsibility, the theoretical basis for the Christian workers’ Esprit movement begun in the 0s by Emmanuel Mounier 550, a Christian philosopher and activist. Influenced by both the religious existentialism of Kierkegaard and the radical social action called for by Marx and in part taking direction from the earlier work of Charles Péguy, the movement strongly opposed fascism and called for worker solidarity during the 0s and 0s. It also urged a more humane treatment of France’s colonies. Personalism allowed for a Christian socialism independent of both more conservative Christian groups and the Communist labor unions and party. Its most important single book is Mounier’s Personalism. The quarterly journal Esprit has regularly published contributions of leading  and international thinkers. Such well-known Christian philosophers as Henry Duméry, Marcel, Maritain, and Ricoeur were attracted to the movement. 
protocol statement, one of the statements that constitute the foundations of empirical knowledge. The term was introduced by proponents of foundationalism, who were convinced that in order to avoid the most radical skepticism, one must countenance beliefs that are justified but not as a result of an inference. If all justified beliefs are inferentially justified, then to be justified in believing one proposition P on the basis of another, E, one would have to be justified in believing both E and that E confirms P. But if all justification were inferential, then to be justified in believing E one would need to infer it from some other proposition one justifiably believes, and so on ad infinitum. The only way to avoid this regress is to find some statement knowable without inferring it from some other truth. Philosophers who agree that empirical knowledge has foundations do not necessarily agree on what those foundations are. The British empiricists restrict the class of contingent protocol statements to propositions describing the contents of mind sensations, beliefs, fears, desires, and the like. And even here a statement describing a mental state would be a protocol statement only for the person in that state. Other philosophers, however, would take protocol statements to include at least some assertions about the immediate physical environment. The plausibility of a given candidate for a protocol statement depends on how one analyzes non-inferential justification. Some philosophers rely on the idea of acquaintance. One is non-inferentially justified in believing something when one is directly acquainted with what makes it true. Other philosophers rely on the idea of a state that is in some sense self-presenting. Still others want to understand the notion in terms of the inconceivability of error. The main difficulty in trying to defend a coherent conception of non-inferential justification is to find an account of protocol statements that gives them enough conceptual content to serve as the premises of arguments, while avoiding the charge that the application of concepts always brings with it the possibility of error and the necessity of inference. 
prototype theory, a theory according to which human cognition involves the deployment of “categories” organized around stereotypical exemplars. Prototype theory differs from traditional theories that take the concepts with which we think to be individuated by means of boundary-specifying necessary and sufficient conditions. Advocates of prototypes hold that our concept of bird, for instance, consists in an indefinitely bounded conceptual “space” in which robins and sparrows are central, and chickens and penguins are peripheral  though the category may be differently organized in different cultures or groups. Rather than being all-ornothing, category membership is a matter of degree. This conception of categories was originally inspired by the notion, developed in a different context by Vitters, of family resemblance. Prototypes were first discussed in detail and given empirical credibility in the work of Eleanor Rosch see, e.g., “On the Internal Structure of Perceptual and Semantic Categories,” 3. 
Proudhon, Pierre-Joseph 180965,  socialist theorist and father of anarchism. He became well known following the publication of What Is Property? 1840, the work containing his main ideas. He argued that the owner of the means of production deprives the workers of a part of their labor: “property is theft.” In order to enable each worker to dispose of his labor, capital and largescale property must be limited. The need to abolish large-scale private property surpassed the immediate need for a state as a controlling agent over chaotic social relationships. To this end he stressed the need for serious reforms in the exchange system. Since the economy and society largely depended on the credit system, Proudhon advocated establishing popular banks that would approve interest-free loans to the poor. Such a mutualism would start the transformation of the actual into a just and nonexploited society of free individuals. Without class antagonism and political authorities, such a society would tend toward an association of communal and industrial collectivities. It would move toward a flexible world federation based on self-management. The main task of social science, then, is to make manifest this immanent logic of social processes. Proudhon’s ideas influenced anarchists, populists Bakunin, Herzen, and syndicalists Jaurès. His conception of self-management was an important inspiration for the later concept of soviets councils. He criticized the inequalities of the contemporary society from the viewpoint of small producers and peasants. Although eclectic and theoretically rather naive, his work attracted the serious attention of his contemporaries and led to a strong attack by Marx in The Holy Family and The Poverty of Philosophy.


prudens: practical reason: In “Epilogue” Grice states that the principle of conversational rationality is a sub-principle of the principle of rationality, simpliciter, which is not involved with ‘communication’ per se. This is an application of Occam’s razor: Rationalities are not to be multiplied beyond necessity.” This motto underlies his aequi-vocality thesis: one reason: desiderative side, judicative side. Literally, ‘practical reason’ is the buletic part of the soul (psyche) that deals with praxis, where the weighing is central. We dont need means-end rationality, we need value-oriented rationality. We dont need the rationality of the means – this is obvious --. We want the rationality of the ends. The end may justify the means. But Grice is looking for what justifies the end. The topic of freedom fascinated Grice, because it merged the practical with the theoretical. Grice sees the conception of freedom as crucial in his elucidation of a rational being. Conditions of freedom are necessary for the very idea, as Kant was well aware. A thief who is forced to steal is just a thief. Grice would engage in a bit of language botany, when exploring the ways the adjective free is used, freely, in ordinary language: free fall, alcohol-free, sugar-free, and his favourite: implicature-free. Grices more systematic reflections deal with Pology, or creature construction. A vegetals, for example is less free than an animal, but more free than a stone! And Humans are more free than non-human. Grice wants to deal with some of the paradoxes identified by Kant about freedom, and he succeeds in solving some of them. There is a section on freedom in Action and events for PPQ  where he expands on eleutheria and notes the idiocy of a phrase like free fall. Grice was irritated by the fact that his friend Hart wrote an essay on liberty and not on freedom, cf. praxis. Refs.: essays on ‘practical reason,’ and “Aspects,” in BANC.

ψ-transmissum. Or ‘soul-to-soul transfer’ “Before we study ‘psi’-transmission we should study ‘transmission’ simpliciter. It is cognate with ‘emission.’ So the emissor is a transmissor. And the emissee is a transemissee.  Grice would never have thougth that he had to lecture on what conversation is all about! He would never have lectured on this to his tutees at St. John’s – but at Brighton is all different. So, to communicate, for an emissor is to intend his recipient to be in a state with content “p.” The modality of the ‘state’ – desiderative or creditative – is not important. In a one-off predicament, the emissor draws a skull to indicate that there is danger. So his belief and desire were successfully transmitted. A good way to formulate the point of communication. Note that Grice is never sure about analsans and analysandum: Emissor communicates THAT P iff Emissor M-INTENDS THAT addressee is to psi- that P. Which seems otiose. “It is raining” can be INFORMATIVE, but it is surely INDICATIVE first. So it’s moke like the emissor intends his addressee to believe that he, the utterer believes that p (the belief itself NOT being part of what is meant, of course). So, there is psi-transmission not necessarily when the utterer convinces his addressee, but just when he gets his addressee to BELIEF that he, the utterer, psi-s that p. So the psi HAS BEEN TRANSMITTED. Surely when the Beatles say “HELP” they don’t expect that their addressee will need help. They intend their addressee to HELP them! Used by Grice in WoW: 287, and emphasised by J. Baker. The gist of communication. trans-mitto or trāmitto , mīsi, missum, 3, v. a. I. To send, carry, or convey across, over, or through; to send off, despatch, transmit from one place or person to another (syn.: transfero, traicio, traduco). A. Lit.: “mihi illam ut tramittas: argentum accipias,” Plaut. Ep. 3, 4, 27: “illam sibi,” id. ib. 1, 2, 52: “exercitus equitatusque celeriter transmittitur (i. e. trans flumen),” are conveyed across, Caes. B. G. 7, 61: “legiones,” Vell. 2, 51, 1: “cohortem Usipiorum in Britanniam,” Tac. Agr. 28: “classem in Euboeam ad urbem Oreum,” Liv. 28, 5, 18: “magnam classem in Siciliam,” id. 28, 41, 17: “unde auxilia in Italiam transmissurus erat,” id. 23, 32, 5; 27, 15, 7: transmissum per viam tigillum, thrown over or across, id. 1, 26, 10: “ponte transmisso,” Suet. Calig. 22 fin.: in partem campi pecora et armenta, Tac. A. 13, 55: “materiam in formas,” Col. 7, 8, 6.— 2. To cause to pass through: “per corium, per viscera Perque os elephanto bracchium transmitteres,” you would have thrust through, penetrated, Plaut. Mil. 1, 30; so, “ensem per latus,” Sen. Herc. Oet. 1165: “facem telo per pectus,” id. Thyest. 1089: “per medium amnem transmittit equum,” rides, Liv. 8, 24, 13: “(Gallorum reguli) exercitum per fines suos transmiserunt,” suffered to pass through, id. 21, 24, 5: “abies folio pinnato densa, ut imbres non transmittat,” Plin. 16, 10, 19, § 48: “Favonios,” Plin. Ep. 2, 17, 19; Tac. A. 13, 15: “ut vehem faeni large onustam transmitteret,” Plin. 36, 15, 24, § 108.— B. Trop. 1. To carry over, transfer, etc.: “bellum in Italiam,” Liv. 21, 20, 4; so, “bellum,” Tac. A. 2, 6: “vitia cum opibus suis Romam (Asia),” Just. 36, 4, 12: vim in aliquem, to send against, i. e. employ against, Tac. A. 2, 38.— 2. To hand over, transmit, commit: “et quisquam dubitabit, quin huic hoc tantum bellum transmittendum sit, qui, etc.,” should be intrusted, Cic. Imp. Pomp. 14, 42: “alicui signa et summam belli,” Sil. 7, 383: “hereditas transmittenda alicui,” to be made over, Plin. Ep. 8, 18, 7; and with inf.: “et longo transmisit habere nepoti,” Stat. S. 3, 3, 78 (analog. to dat habere, Verg. A. 9, 362; “and, donat habere,” id. ib. 5, 262); “for which: me famulo famulamque Heleno transmisit habendam,” id. ib. 3, 329: “omne meum tempus amicorum temporibus transmittendum putavi,” should be devoted, Cic. Imp. Pomp. 1, 1: “poma intacta ore servis,” Tac. A. 4, 54.— 3. To let go: animo transmittente quicquid acceperat, letting pass through, i. e. forgetting, Sen. Ep. 99, 6: “mox Caesarem vergente jam senectā munia imperii facilius tramissurum,” would let go, resign, Tac. A. 4, 41: “Junium mensem transmissum,” passed over, omitted, id. ib. 16, 12 fin.: “Gangen amnem et quae ultra essent,” to leave unconquered, Curt. 9, 4, 17: “leo imbelles vitulos Transmittit,” Stat. Th. 8, 596.— II. To go or pass over or across, to cross over; to cross, pass, go through, traverse, etc. A. Lit. 1. In gen. (α). Act.: “grues cum maria transmittant,” Cic. N. D. 2, 49, 125: “cur ipse tot maria transmisit,” id. Fin. 5, 29, 87; so, “maria,” id. Rep. 1, 3, 6: “satis constante famā jam Iberum Poenos transmisisse,” Liv. 21, 20, 9 (al. transisse): “quem (Euphratem) ponte,” Tac. A. 15, 7: “fluvium nando,” Stat. Th. 9, 239: “lacum nando,” Sil. 4, 347: “murales fossas saltu,” id. 8, 554: “equites medios tramittunt campos,” ride through, Lucr. 2, 330; cf.: “cursu campos (cervi),” run through, Verg. A. 4, 154: quantum Balearica torto Funda potest plumbo medii transmittere caeli, can send with its hurled bullet, i. e. can send its bullet, Ov. M. 4, 710: “tectum lapide vel missile,” to fling over, Plin. 28, 4, 6, § 33; cf.: “flumina disco,” Stat. Th. 6, 677.—In pass.: “duo sinus fuerunt, quos tramitti oporteret: utrumque pedibus aequis tramisimus,” Cic. Att. 16, 6, 1: “transmissus amnis,” Tac. A. 12, 13: “flumen ponte transmittitur,” Plin. Ep. 8, 8, 5.— (β). Neutr.: “ab eo loco conscendi ut transmitterem,” Cic. Phil. 1, 3, 7: “cum exercitus vestri numquam a Brundisio nisi summā hieme transmiserint,” id. Imp. Pomp. 12, 32: “cum a Leucopetrā profectus (inde enim tramittebam) stadia circiter CCC. processissem, etc.,” id. Att. 16, 7, 1; 8, 13, 1; 8, 11, 5: “ex Corsicā subactā Cicereius in Sardiniam transmisit,” Liv. 42, 7, 2; 32, 9, 6: “ab Lilybaeo Uticam,” id. 25, 31, 12: “ad vastandam Italiae oram,” id. 21, 51, 4; 23, 38, 11; 24, 36, 7: “centum onerariae naves in Africam transmiserunt,” id. 30, 24, 5; Suet. Caes. 58: “Cyprum transmisit,” Curt. 4, 1, 27. — Pass. impers.: “in Ebusum insulam transmissum est,” Liv. 22, 20, 7.—* 2. In partic., to go over, desert to a party: “Domitius transmisit ad Caesa rem,” Vell. 2, 84 fin. (syn. transfugio).— B. Trop. (post-Aug.). 1. In gen., to pass over, leave untouched or disregarded (syn praetermitto): “haud fas, Bacche, tuos taci tum tramittere honores,” Sil. 7, 162; cf.: “sententiam silentio, deinde oblivio,” Tac. H. 4, 9 fin.: “nihil silentio,” id. ib. 1, 13; “4, 31: aliquid dissimulatione,” id. A. 13, 39: “quae ipse pateretur,” Suet. Calig. 10; id. Vesp. 15. — 2. In partic., of time, to pass, spend (syn. ago): “tempus quiete,” Plin. Ep. 9, 6, 1: so, “vitam per obscurum,” Sen. Ep. 19, 2: steriles annos, Stat. S. 4, 2, 12: “aevum,” id. ib. 1, 4, 124: “quattuor menses hiemis inedia,” Plin. 8, 25, 38, § 94: “vigiles noctes,” Stat. Th. 3, 278 et saep. — Transf.: “febrium ardorem,” i. e. to undergo, endure, Plin. Ep. 1, 22, 7; cf. “discrimen,” id. ib. 8, 11, 2: “secessus, voluptates, etc.,” id. ib. 6, 4, 2.

pseudo-hallucination, a non-deceptive hallucination. An ordinary hallucination might be thought to comprise two components: i a sensory component, whereby one experiences an image or sensory episode similar in many respects to a veridical perceiving except in being non-veridical; and ii a cognitive component, whereby one takes or is disposed to take the image or sensory episode to be veridical. A pseudohallucination resembles a hallucination, but lacks this second component. In experiencing a pseudohallucination, one appreciates that one is not perceiving veridically. The source of the term seems to be the painter Wassily Kandinsky, who employed it in 5 to characterize a series of apparently drug-induced images experienced and pondered by a friend who recognized them, at the very time they were occurring, not to be veridical. Kandinsky’s account is discussed by Jaspers in his General Psychopathology, 6, and thereby entered the clinical lore. Pseudohallucinations may be brought on by the sorts of pathological condition that give rise to hallucinations, or by simple fatigue, emotional adversity, or loneliness. Thus, a driver, late at night, may react to non-existent objects or figures on the road, and immediately recognize his error. 
psycholinguistics, an interdisciplinary research area that uses theoretical descriptions of language taken from linguistics to investigate psychological processes underlying language production, perception, and learning. There is considerable disagreement as to the appropriate characterization of the field and the major problems. Philosophers discussed many of the problems now studied in psycholinguistics before either psychology or linguistics were spawned, but the self-consciously interdisciplinary field combining psychology and linguistics emerged not long after the birth of the two disciplines. Meringer used the adjective ‘psycholingisch-linguistische’ in an 5 book. Various national traditions of psycholinguistics continued at a steady but fairly low level of activity through the 0s and declined somewhat during the 0s and 0s because of the antimentalist attitudes in both linguistics and psychology. Psycholinguistic researchers in the USSR, mostly inspired by L. S. Vygotsky Thought and Language, 4, were more active during this period in spite of official suppression. Numerous quasi-independent sources contributed to the rebirth of psycholinguistics in the 0s; the most significant was a seminar held at a  during the summer of 3 that led to the publication of Psycholinguistics: A Survey of Theory and Research Problems 4, edited by C. E. Osgood and T. A. Sebeok  a truly interdisciplinary book jointly written by more than a dozen authors. The contributors attempted to analyze and reconcile three disparate approaches: learning theory from psychology, descriptive linguistics, and information theory which came mainly from engineering. The book had a wide impact and led to many further investigations, but the nature of the field changed rapidly soon after its publication with the Chomskyan revolution in linguistics and the cognitive turn in psychology. The two were not unrelated: Chomsky’s positive contribution, Syntactic Structures, was less broadly influential than his negative review Language, 9 of B. F. Skinner’s Verbal Behavior. Against the empiricist-behaviorist view of language understanding and production, in which language is merely the exhibition of a more complex form of behavior, Chomsky argued the avowedly rationalist position that the ability to learn and use language is innate and unique to humans. He emphasized the creative aspect of language, that almost all sentences one hears or produces are novel. One of his premises was the alleged infinity of sentences in natural languages, but a less controversial argument can be given: there are tens of millions of five-word sentences in English, all of which are readily understood by speakers who have never heard them. Chomsky’s work promised the possibility of uncovering a very special characteristic of the human mind. But the promise was qualified by the disclaimer that linguistic theory describes only the competence of the ideal speaker. Many psycholinguists spent countless hours during the 0s and 0s seeking the traces of underlying competence beneath the untidy performances of actual speakers. During the 0s, as Chomsky frequently revised his theories of syntax and semantics in significant ways, and numerous alternative linguistic models were under consideration, psychologists generated a range of productive research problems that are increasingly remote from the Chomskyan beginnings. Contemporary psycholinguistics addresses phonetic, phonological, syntactic, semantic, and pragmatic influences on language processing. Few clear conclusions of philosophical import have been established. For example, several decades of animal research have shown that other species can use significant portions of human language, but controversy abounds over how central those portions are to language. Studies now clearly indicate the importance of word frequency and coarticulation, the dependency of a hearer’s identification of a sound as a particular phoneme, or of a visual pattern as a particular letter, not only on the physical features of the pattern but on the properties of other patterns not necessarily adjacent. Physically identical patterns may be heard as a d in one context and a t in another. It is also accepted that at least some of the human lignuistic abilities, particularly those involved in reading and speech perception, are relatively isolated from other cognitive processes. Infant studies show that children as young as eight months learn statistically important patterns characteristic of their natural language  suggesting a complex set of mechanisms that are automatic and invisible to us. 
Pufendorf, S., G. historian and theorist of natural law. Pufendorf was influenced by both Grotius and Hobbes. He portrayed people as contentious and quarrelsome, yet as needing one another’s company and assistance. Natural law shows how people can live with one another while pursuing their own conflicting projects. To minimize religious disputes about morals, Pufendorf sought a way of deriving laws of nature from observable facts alone. Yet he thought divine activity essential to morality. He opened his massive Latin treatise On the Law of Nature and of Nations 1672 with a voluntarist account of God’s creation of the essence of mankind: given that we have the nature God gave us, certain laws must be valid for us, but only God’s will determined our nature. As a result, our nature indicates God’s will for us. Hence observable facts about ourselves show us what laws God commands us to obey. Because we so obviously need one another’s assistance, the first law is to increase our sociability, i.e. our willingness to live together. All other laws indicate acts that would bring about this end. In the course of expounding the laws he thought important for the development of social life to the high cultural level our complex nature points us toward, Pufendorf analyzed all the main points that a full legal system must cover. He presented the rudiments of laws of marriage, property, inheritance, contract, and international relations in both war and peace. He also developed the Grotian theory of personal rights, asserting for the first time that rights are pointless unless for each right there are correlative duties binding on others. Taking obligation as his fundamental concept, he developed an important distinction between perfect and imperfect duties and rights. And in working out a theory of property he suggested the first outlines of a historical sociology of wealth later developed by Adam Smith. Pufendorf’s works on natural law were textbooks for all of Europe for over a century and were far more widely read than any other treatments of the subject. 


pulchrum -- beauty, an aesthetic property commonly thought of as a species of aesthetic value. As such, it has been variously thought to be 1 a simple, indefinable property that cannot be defined in terms of any other properties; 2 a property or set of properties of an object that makes the object capable of producing a certain sort of pleasurable experience in any suitable perceiver; or 3 whatever produces a particular sort of pleasurable experience, even though what produces the experience may vary from individual to individual. It is in this last sense that beauty is thought to be “in the eye of the beholder.” If beauty is a simple, indefinable property, as in 1, then it cannot be defined conceptually and has to be apprehended by intuition or taste. Beauty, on this account, would be a particular sort of aesthetic property. If beauty is an object’s Bayle, Pierre beauty 75   75 capacity to produce a special sort of pleasurable experience, as in 2, then it is necessary to say what properties provide it with this capacity. The most favored candidates for these have been formal or structural properties, such as order, symmetry, and proportion. In the Philebus Plato argues that the form or essence of beauty is knowable, exact, rational, and measurable. He also holds that simple geometrical shapes, simple colors, and musical notes all have “intrinsic beauty,” which arouses a pure, “unmixed” pleasure in the perceiver and is unaffected by context. In the sixteenth and seventeenth centuries many treatises were written on individual art forms, each allegedly governed by its own rules. In the eighteenth century, Hutcheson held that ‘beauty’ refers to an “idea raised in us,” and that any object that excites this idea is beautiful. He thought that the property of the object that excites this idea is “uniformity in variety.” Kant explained the nature of beauty by analyzing judgments that something is beautiful. Such judgments refer to an experience of the perceiver. But they are not merely expressions of personal experience; we claim that others should also have the same experience, and that they should make the same judgment i.e., judgments that something is beautiful have “universal validity”. Such judgments are disinterested  determined not by any needs or wants on the part of the perceiver, but just by contemplating the mere appearance of the object. These are judgments about an object’s free beauty, and making them requires using only those mental capacities that all humans have by virtue of their ability to communicate with one another. Hence the pleasures experienced in response to such beauty can in principle be shared by anyone. Some have held, as in 3, that we apply the term ‘beautiful’ to things because of the pleasure they give us, and not on the basis of any specific qualities an object has. Archibald Alison held that it is impossible to find any properties common to all those things we call beautiful. Santayana believed beauty is “pleasure regarded as a quality of a thing,” and made no pretense that certain qualities ought to produce that pleasure. The Grecian term to kalon, which is often tr. as ‘beauty’, did not refer to a thing’s autonomous aesthetic value, but rather to its “excellence,” which is connected with its moral worth and/or usefulness. This concept is closer to Kant’s notion of dependent beauty, possessed by an object judged as a particular kind of thing such as a beautiful cat or a beautiful horse, than it is to free beauty, possessed by an object judged simply on the basis of its appearance and not in terms of any concept of use

punishment, a distinctive form of legal sanction, distinguished first by its painful or unpleasant nature to the offender, and second by the ground on which the sanction is imposed, which must be because the offender offended against the norms of a society. None of these three attributes is a strictly necessary condition for proper use of the word ‘punishment’. There may be unpleasant consequences visited by nature upon an offender such that he might be said to have been “punished enough”; the consequences in a given case may not be unpleasant to a particular offender, as in the punishment of a masochist with his favorite form of self-abuse; and punishment may be imposed for reasons other than offense against society’s norms, as is the case with punishment inflicted in order to deter others from like acts. The “definitional stop” argument in discussions of punishment seeks to tie punishment analytically to retributivism. Retributivism is the theory that punishment is justified by the moral desert of the offender; on this view, a person who culpably does a wrongful action deserves punishment, and this desert is a sufficient as well as a necessary condition of just punishment. Punishment of the deserving, on this view, is an intrinsic good that does not need to be justified by any other good consequences such punishment may achieve, such as the prevention of crime. Retributivism is not to be confused with the view that punishment satisfies the feelings of vengeful citizens nor with the view that punishment preempts such citizens from taking the law into their own hands by vigilante action  these latter views being utilitarian. Retributivism is also not the view sometimes called “weak” or “negative” retributivism that only the deserving are to be punished, for desert on such a view typically operates only as a limiting and not as a justifying condition of punishment. The thesis known as the “definitional stop” says that punishment must be retributive in its justification if it is to be punishment at all. Bad treatment inflicted in order to prevent future crime is not punishment but deserves another name, usually ‘telishment’. The dominant justification of non-retributive punishment or telishment is deterrence. The good in whose name the bad of punishing is justified, on this view, is prevention of future criminal acts. If punishment is inflicted to prevent the offender from committing future criminal acts, it is styled “specific” or “special” deterrence; if punishment is inflicted to prevent others from committing future criminal acts, it is styled “general” deterrence. In either case, punishment of an action is justified by the future effect of that punishment in deterring future actors from committing crimes. There is some vagueness in the notion of deterrence because of the different mechanisms by which potential criminals are influenced not to be criminals by the example of punishment: such punishment may achieve its effects through fear or by more benignly educating those would-be criminals out of their criminal desires.
Putnam, Hilary b.6,  philosopher who has made significant contributions to the philosophies of language, science, and mind, and to mathematical logic and metaphysics. He completed his Ph.D. in 1 at the  of California Los Angeles and has taught at Northwestern, Princeton, MIT, and Harvard. In the late 0s he contributed with Martin Davis and Julia Robinson to a proof of the unsolvability of Hilbert’s tenth problem completed in 0 by Yuri Matiyasevich. Rejecting both Platonism and conventionalism in mathematics, he explored the concepts of mathematical truth and logical necessity on the assumption that logic is not entirely immune from empirical revision  e.g., quantum mechanics may require a rejection of classical logic. In the 0s and 0s he advanced functionalism, an original theory of mind in which human beings are conceived as Turing machines computers and mental states are functional or    759 computational states. While this theory is presupposed by much contemporary research in cognitive science, Putnam himself in Representation and Reality, 8 abandoned the view, arguing that genuine intentionality cannot be reduced to computational states because the content of beliefs is a determined by facts external to the individual and b individuatable only by interpreting our belief system as a whole meaning holism. Putnam’s criticism of functionalism relies on the “new theory of reference”  sometimes called the “causal” or “direct” theory  that he and Kripke working independently developed during the late 0s and early 0s and that is today embraced by many philosophers and scientists. In “The Meaning of ‘Meaning’ ” 5 Putnam claims that the reference of natural kind terms like ‘water’ is determined by facts about the world  the microphysical structure of water H2O and the linguistic practices of speakers  and not by the internal mental states of speakers. Early in his career, Putnam championed scientific realism, rejecting conventionalism and arguing that without a realist commitment to theoretical entities e.g., electrons the success of science would be a “miracle.” In 6 he famously abandoned metaphysical realism in favor of “internal realism,” which gives up commitment to mind-independent objects and relativizes ontology to conceptual schemes. In a series of model-theoretic arguments, Putnam challenged the metaphysical realist assumption that an epistemically ideal theory might be false, claiming that it requires an implausibly “magical” theory of reference. To the same end, he sought to demonstrate tha
t we are not “brains in a vat” and that radical skepticism is incoherent Reason, Truth and History, 1. More recently, he has emphasized conceptual relativity in his attack on metaphysical realism’s commitment to “one true theory” and, in his Dewey Lectures 4, has defended direct perceptual realism, showing his allegiance to everyday “realism.” There is growing appreciation of the underlying unity in Putnam’s work that helps correct his reputation for “changing his mind.” He has consistently sought to do justice both to the “real world” of common sense and science and to distinctly human ways of representing that world. In the 0s his energies were increasingly directed to our “moral image of the world.” Leading a revival of  pragmatism, he has attacked the factvalue dichotomy, articulating a moral view that resists both relativism and authoritarianism. Putnam’s influence now extends beyond philosophers and scientists, to literary theorists, cognitive linguists, and theologians. 
Pyrrho of Elis, Grecian philosopher, regarded as the founder of Skepticism. Like Socrates, he wrote nothing, but impressed many with provocative ideas and calm demeanor. His equanimity was admired by Epicurus; his attitude of indifference influenced early Stoicism; his attack on knowledge was taken over by the skeptical Academy; and two centuries later, a revival of Skepticism adopted his name. Many of his ideas were anticipated by earlier thinkers, notably Democritus. But in denying the veracity of all sensations and beliefs, Pyrrho carried doubt to new and radical extremes. According to ancient anecdote, which presents him as highly eccentric, he paid so little heed to normal sensibilities that friends often had to rescue him from grave danger; some nonetheless insisted he lived into his nineties. He is also said to have emulated the “naked teachers” as the Hindu Brahmans were called by Grecians whom he met while traveling in the entourage of Alexander the Great. Pyrrho’s chief exponent and publicist was Timon of Phlius c.325c.235 B.C.. His bestpreserved work, the Silloi “Lampoons”, is a parody in Homeric epic verse that mocks the pretensions of numerous philosophers on an imaginary visit to the underworld. According to Timon, Pyrrho was a “negative dogmatist” who affirmed that knowledge is impossible, not because our cognitive apparatus is flawed, but because the world is fundamentally indeterminate: things themselves are “no more” cold than hot, or good than bad. But Timon makes clear that the key to Pyrrho’s Skepticism, and a major source of his impact, was the ethical goal he sought to achieve: by training himself to disregard all perception and values, he hoped to attain mental tranquility. 
Pythagoras, the most famous of the pre-Socratic Grecian philosophers. He emigrated from the island of Samos off Asia Minor to Croton southern Italy in 530. There he founded societies based on a strict way of life. They had great political impact in southern Italy and aroused opposition that resulted in the burning of their meeting houses and, ultimately, in the societies’ disappearance in the fourth century B.C. Pythagoras’s fame grew exponentially with the pasage of time. Plato’s immediate successors in the Academy saw true philosophy as an unfolding of the original insight of Pythagoras. By the time of Iamblichus late third century A.D., Pythagoreanism and Platonism had become virtually identified. Spurious writings ascribed both to Pythagoras and to other Pythagoreans arose beginning in the third century B.C. Eventually any thinker who saw the natural world as ordered according to pleasing mathematical relations e.g., Kepler came to be called a Pythagorean. Modern scholarship has shown that Pythagoras was not a scientist, mathematician, or systematic philosopher. He apparently wrote nothing. The early evidence shows that he was famous for introducing the doctrine of metempsychosis, according to which the soul is immortal and is reborn in both human and animal incarnations. Rules were established to purify the soul including the prohibition against eating beans and the emphasis on training of the memory. General reflections on the natural world such as “number is the wisest thing” and “the most beautiful, harmony” were preserved orally. A belief in the mystical power of number is also visible in the veneration for the tetractys tetrad: the numbers 14, which add up to the sacred number 10. The doctrine of the harmony of the spheres  that the heavens move in accord with number and produce music  may go back to Pythagoras. It is often assumed that there must be more to Pythagoras’s thought than this, given his fame in the later tradition. However, Plato refers to him only as the founder of a way of life Republic 600a9. In his account of pre-Socratic philosophy, Aristotle refers not to Pythagoras himself, but to the “so-called Pythagoreans” whom he dates in the fifth century. 
quale: a property of a mental state or event, in particular of a sensation and a perceptual state, which determine “what it is like” to have them. Sometimes ‘phenomenal properties’ and ‘qualitative features’ are used with the same meaning. The felt difference between pains and itches is said to reside in differences in their “qualitative character,” i.e., their qualia. For those who accept an “actobject” conception of perceptual experience, qualia may include such properties as “phenomenal redness” and “phenomenal roundness,” thought of as properties of sense-data, “phenomenal objects,” or portions of the visual field. But those who reject this conception do not thereby reject qualia; a proponent of the adverbial analysis of perceptual experience can hold that an experience of “sensing redly” is so in virtue of, in part, what qualia it has, while denying that there is any sense in which the experience itself is red. Qualia are thought of as non-intentional, i.e., non-representational, features of the states that have them. So in a case of “spectrum inversion,” where one person’s experiences of green are “qualitatively” just like another person’s experiences of red, and vice versa, the visual experiences the two have when viewing a ripe tomato would be alike in their intentional features both would be of a red, round, bulgy surface, but would have different qualia. Critics of physicalist and functionalist accounts of mind have argued from the possibility of spectrum inversion and other kinds of “qualia inversion,” and from such facts as that no physical or functional description will tell one “what it is like” to smell coffee, that such accounts cannot accommodate qualia. Defenders of such accounts are divided between those who claim that their accounts can accommodate qualia and those who claim that qualia are a philosophical myth and thus that there are none to accommodate. 
qualitative predicate, a kind of predicate postulated in some attempts to solve the grue paradox. 1 On the syntactic view, a qualitative predicate is a syntactically more or less simple predicate. Such simplicity, however, is relative to the choice of primitives in a language. In English, ‘green’ and ‘blue’ are primitive, while ‘grue’ and ‘bleen’ must be introduced by definitions ‘green and first examined before T, or blue otherwise’, ‘blue and first examined before T, or green otherwise’, respectively. In other languages, ‘grue’ and ‘bleen’ may be primitive and hence “simple,” while ‘green’ and ‘blue’ must be introduced by definitions ‘grue and first examined before T, or bleen otherwise’, ‘bleen and first examined before T, or grue otherwise’, respectively. 2 On the semantic view, a qualitative predicate is a predicate to which there corresponds a property that is “natural” to us or of easy semantic access. The quality of greenness is easy and natural; the quality of grueness is strained. 3 On the ontological view, a qualitative predicate is a predicate to which there corresponds a property that is woven into the causal or modal structure of reality in a way that gruesome properties are not. 
qualities, properties or characteristics. There are three specific philosophical senses. 1 Qualities are physical properties, logical constructions of physical properties, or dispositions. Physical properties, such as mass, shape, and electrical charge, are properties in virtue of which objects can enter into causal relations. Logical constructions of physical properties include conjunctions and disjunctions of them; being 10 # .02 cm long is a disjunctive property. A disposition of an object is a potential for the object to enter into a causal interaction of some specific kind under some specific condition; e.g., an object is soluble in water if and only if it would dissolve were it in enough pure water. Locke held a very complex theory of powers. On Locke’s theory, the dispositions of objects are a kind of power and the human will is a kind of power. However, the human will is not part of the modern notion of disposition. So, predicating a disposition of an object implies a subjunctive conditional of the form: if such-and-such were to happen to the object, then so-and-so would happen to it; that my vase is fragile implies that if my vase were to be hit sufficiently hard then it would break. Whether physical properties are distinct from dispositions is disputed. Three sorts of qualities are often distinguished. Primary qualities are physical properties or logical constructions from physical properties. Secondary qualities are dispositions to produce sensory experiences of certain phenomenal sorts under appropriate conditions. The predication of a secondary quality, Q, to an object implies that if the object were to be perceived under normal conditions then the object would appear to be Q to the perceivers: if redness is a secondary quality, then that your coat is red implies that if your coat were to be seen under normal conditions, it would look red. Locke held that the following are secondary qualities: colors, tastes, smells, sounds, and warmth or cold. Tertiary qualities are dispositions that are not secondary qualities, e.g. fragility. Contrary to Locke, the color realist holds that colors are either primary or tertiary qualities; so that x is yellow is logically independent of the fact that x looks yellow under normal conditions. Since different spectral reflectances appear to be the same shade of yellow, some color realists hold that any shade of yellow is a disjunctive property whose components are spectral reflectances. 2 Assuming a representative theory of perception, as Locke did, qualities have two characteristics: qualities are powers or dispositions of objects to produce sensory experiences sensedata on some theories in humans; and, in sensory experience, qualities are represented as intrinsic properties of objects. Instrinsic properties of objects are properties that objects have independently of their environment. Hence an exact duplicate of an object has all the intrinsic properties of the original, and an intrinsic property of x never has the form, x-stands-in-suchand-such-a-relation-to-y. Locke held that the primary qualities are extension size, figure shape, motion or rest, solidity impenetrability, and number; the primary qualities are correctly represented in perception as intrinsic features of objects, and the secondary qualities listed in 1 are incorrectly represented in perception as intrinsic features of objects. Locke seems to have been mistaken in holding that number is a quality of objects. Positional qualities are qualities defined in terms of the relative positions of points in objects and their surrounding: shape, size, and motion and rest. Since most of Locke’s primary qualities are positional, some non-positional quality is needed to occupy positions. On Locke’s account, solidity fulfills this role, although some have argued Hume that solidity is not a primary quality. 3 Primary qualities are properties common to and inseparable from all matter; secondary qualities are not really qualities in objects, but only powers of objects to produce sensory effects in us by means of their primary qualities. This is another use of ‘quality’ by Locke, where ‘primary’ functions much like ‘real’ and real properties are given by the metaphysical assumptions of the science of Locke’s time. Qualities are distinct from representations of them in predications. Sometimes the same quality is represented in different ways by different predications: ‘That is water’ and ‘That is H2O’. The distinction between qualities and the way they are represented in predications opens up the Lockean possibility that some qualities are incorrectly represented in some predications. Features of predications are sometimes used to define a quality; dispositions are sometimes defined in terms of subjunctive conditionals see definition of ‘secondary qualities’ in 1, and disjunctive properties are defined in terms of disjunctive predications. Features of predications are also used in the following definition of ‘independent qualities’: two qualities, P and Q, are independent if and only if, for any object x, the predication of P and of Q to x are logically independent i.e., that x is P and that x is Q are logically independent; circularity and redness are independent, circularity and triangularity are dependent. If two determinate qualities, e.g., circularity and triangularity, belong to the same determinable, say shape, then they are dependent, but if two determinate qualities, e.g., squareness and redness, belong to different determinables, say shape and color, they are independent.
Quantification: H. P. Grice, “Every nice girl loves a sailor.” -- the application of one or more quantifiers e.g., ‘for all x’, ‘for some y’ to an open formula. A quantification or quantified sentence results from first forming an open formula from a sentence by replacing expressions belonging to a certain class of expressions in the sentences by variables whose substituends are the expressions of that class and then prefixing the formula with quantifiers using those variables. For example, from ‘Bill hates Mary’ we form ‘x hates y’, to which we prefix the quantifiers ‘for all x’ and ‘for some y’, getting the quantification sentence ‘for all x, for some y, x hates y’ ‘Everyone hates someone’. In referential quantification only terms of reference may be replaced by variables. The replaceable terms of reference are the substituends of the variables. The values of the variables are all those objects to which reference could be made by a term of reference of the type that the variables may replace. Thus the previous example ‘for all x, for some y, x hates y’ is a referential quantification. Terms standing for people ‘Bill’, ‘Mary’, e.g. are the substituends of the variables ‘x’ and ‘y’. And people are the values of the variables. In substitutional quantification any type of term may be replaced by variables. A variable replacing a term has as its substituends all terms of the type of the replaced term. For example, from ‘Bill married Mary’ we may form ‘Bill R Mary’, to which we prefix the quantifier ‘for some R’, getting the substitutional quantification ‘for some R, Bill R Mary’. This is not a referential quantification, since the substituends of ‘R’ are binary predicates such as ‘marries’, which are not terms of reference. Referential quantification is a species of objectual quantification. The truth conditions of quantification sentences objectually construed are understood in terms of the values of the variable bound by the quantifier. Thus, ‘for all v, fv’ is true provided ‘fv’ is true for all values of the variable ‘v’; ‘for some v, fv’ is true provided ‘fv’ is true for some value of the variable ‘v’. The truth or falsity of a substitutional quantification turns instead on the truth or falsity of the sentences that result from the quantified formula by replacing variables by their substituends. For example, ‘for some R, Bill R Mary’ is true provided some sentence of the form ‘Bill R Mary’ is true. In classical logic the universal quantifier ‘for all’ is definable in terms of negation and the existential quantifier ‘for some’: ‘for all x’ is short for ‘not for some x not’. The existential quantifier is similarly definable in terms of negation and the universal quantifier. In intuitionistic logic, this does not hold. Both quantifiers are regarded as primitive.
quantifying in, use of a quantifier outside of an opaque construction to attempt to bind a variable within it, a procedure whose legitimacy was first questioned by Quine. An opaque construction is one that resists substitutivity of identity. Among others, the constructions of quotation, the verbs of propositional attitude, and the logical modalities can give rise to opacity. For example, the position of ‘six’ in: 1 ‘six’ contains exactly three letters is opaque, since the substitution for ‘six’ by its codesignate ‘immediate successor of five’ renders a truth into a falsehood: 1H ‘the immediate successor of five’ contains exactly three letters. Similarly, the position of ‘the earth’ in: 2 Tom believes that the earth is habitable is opaque, if the substitution of ‘the earth’ by its codesignate ‘the third planet from the sun’ renders a sentence that Tom would affirm into one that he would deny: 2H Tom believes that the third planet from the sun is habitable. Finally, the position of ‘9’ and of ‘7’ in: 3 Necessarily 9  7 is opaque, since the substitution of ‘the number of major planets’ for its codesignate ‘9’ renders a truth into a falsehood: 3H Necessarily the number of major planets  7. Quine argues that since the positions within opaque constructions resist substitutivity of identity, they cannot meaningfully be quantified. Accordingly, the following three quantified sentences are meaningless: 1I Ex ‘x’  7, 2I Ex Tom believes that x is habitable, 3I Ex necessarily x  7. 1I, 2I, and 3I are meaningless, since the second occurrence of ‘x’ in each of them does not function as a variable in the ordinary nonessentialist quantificational way. The second occurrence of ‘x’ in 1I functions as a name that names the twenty-fourth letter of the alphabet. The second occurrences of ‘x’ in 2I and in 3I do not function as variables, since they do not allow all codesignative terms as substituends without change of truth-value. Thus, they may take objects as values but only objects designated in certain ways, e.g., in terms of their intensional or essential properties. So, short of acquiescing in an intensionalist or essentialist metaphysics, Quine argues, we cannot in general quantify into opaque contexts. 
quantum logic, the logic of which the models are certain non-Boolean algebras derived from the mathematical representation of quantum mechanical systems. The models of classical logic are, formally, Boolean algebras. This is the central notion of quantum logic in the literature, although the term covers a variety of modal logics, dialogics, and operational logics proposed to elucidate the structure of quantum mechanics and its relation to classical mechanics. The dynamical quantities of a classical mechanical system position, momentum, energy, etc. form a commutative algebra, and the dynamical properties of the system e.g., the property that the position lies in a specified range, or the property that the momentum is greater than zero, etc. form a Boolean algebra. The transition from classical to quantum mechanics involves the transition from a commutative algebra of dynamical quantities to a noncommutative algebra of so-called observables. One way of understanding the conceptual revolution from classical to quantum mechanics is in terms of a shift from the class of Boolean algebras to a class of non-Boolean algebras as the appropriate relational structures for the dynamical properties of mechanical systems, hence from a Boolean classical logic to a non-Boolean quantum logic as the logic applicable to the fundamental physical processes of our universe. This conception of quantum logic was developed formally in a classic 6 paper by G. Birkhoff and J. von Neumann although von Neumann first proposed the idea in 7. The features that distinguish quantum logic from classical logic vary with the formulation. In the Birkhoffvon Neumann logic, the distributive law of classical logic fails, but this is by no means a feature of all versions of quantum logic. It follows from Gleason’s theorem 7 that the non-Boolean models do not admit two-valued homomorphisms in the general case, i.e., there is no partition of the dynamical properties of a quantum mechanical system into those possessed by the system and those not possessed by the system that preserves algebraic structure, and equivalently no assignment of values to the observables of the system that preserves algebraic structure. This result was proved independently for finite sets of observables by S. Kochen and E. P. Specker 7. It follows that the probabilities specified by the Born interpretation of the state function of a quantum mechanical system for the results of measurements of observables cannot be derived from a probability distribution over the different possible sets of dynamical properties of the system, or the different possible sets of values assignable to the observables of which one set is presumed to be actual, determined by hidden variables in addition to the state function, if these sets of properties or values are required to preserve algebraic structure. While Bell’s theorem 4 excludes hidden variables satisfying a certain locality condition, the Kochen-Specker theorem relates the non-Booleanity of quantum logic to the impossibility of hidden variable extensions of quantum mechanics, in which value assignments to the observables satisfy constraints imposed by the algebraic structure of the observables.
quantum mechanics, also called quantum theory, the science governing objects of atomic and subatomic dimensions. Developed independently by Werner Heisenberg as matrix mechanics, 5 and Erwin Schrödinger as wave mechanics, 6, quantum mechanics breaks with classical treatments of the motions and interactions of bodies by introducing probability and acts of measurement in seemingly irreducible ways. In the widely used Schrödinger version, quantum mechanics associates with each physical system a time-dependent function, called the state function alternatively, the state vector or Y function. The evolution of the system is represented by the temporal transformation of the state function in accord with a master equation, known as the Schrödinger equation. Also associated with a system are “observables”: in principle measurable quantities, such as position, momentum, and energy, including some with no good classical analogue, such as spin. According to the Born interpretation 6, the state function is understood instrumentally: it enables one to calculate, for any possible value of an observable, the probability that a measurement of that observable would find that particular value. The formal properties of observables and state functions imply that certain pairs of observables such as linear momentum in a given direction, and position in the same direction are incompatible in the sense that no state function assigns probability 1 to the simultaneous determination of exact values for both observables. This is a qualitative statement of the Heisenberg uncertainty principle alternatively, the indeterminacy principle, or just the uncertainty principle. Quantitatively, that principle places a precise limit on the accuracy with which one may simultaneously measure a pair of incompatible observables. There is no corresponding limit, however, on the accuracy with which a single observable say, position alone, or momentum alone may be measured. The uncertainty principle is sometimes understood in terms of complementarity, a general perspective proposed by Niels Bohr according to which the connection between quantum phenomena and observation forces our classical concepts to split into mutually exclusive packages, both of which are required for a complete understanding but only one of which is applicable under any particular experimental conditions. Some take this to imply an ontology in which quantum objects do not actually possess simultaneous values for incompatible observables; e.g., do not have simultaneous position and momentum. Others would hold, e.g., that measuring the position of an object causes an uncontrollable change in its momentum, in accord with the limits on simultaneous accuracy built into the uncertainty principle. These ways of treating the principle are not uncontroversial. Philosophical interest arises in part from where the quantum theory breaks with classical physics: namely, from the apparent breakdown of determinism or causality that seems to result from the irreducibly statistical nature of the theory, and from the apparent breakdown of observer-independence or realism that seems to result from the fundamental role of measurement in the theory. Both features relate to the interpretation of the state function as providing only a summary of the probabilities for various measurement outcomes. Einstein, in particular, criticized the theory on these grounds, and in 5 suggested a striking thought experiment to show that, assuming no action-at-a-distance, one would have to consider the state function as an incomplete description of the real physical state for an individual system, and therefore quantum mechanics as merely a provisional theory. Einstein’s example involved a pair of systems that interact briefly and then separate, but in such a way that the outcomes of various measurements performed on each system, separately, show an uncanny correlation. In 1 the physicist David Bohm simplified Einstein’s example, and later 7 indicated that it may be realizable experimentally. The physicist John S. Bell then formulated a locality assumption 4, similar to Einstein’s, that constrains factors which might be used in describing the state of an individual system, so-called hidden variables. Locality requires that in the EinsteinBohm experiment hidden variables not allow the measurement performed on one system in a correlated pair immediately to influence the outcome obtained in measuring the other, spatially separated system. Bell demonstrated that locality in conjunction with other assumptions about hidden variables restricts the probabilities for measurement outcomes according to a system of inequalities known as the Bell inequalities, and that the probabilities of certain quantum systems violate these inequalities. This is Bell’s theorem. Subsequently several experiments of the Einstein-Bohm type have been performed to test the Bell inequalities. Although the results have not been univocal, the consensus is that the experimental data support the quantum theory and violate the inequalities. Current research is trying to evaluate the implications of these results, including the extent to which they rule out local hidden variables. See J. Cushing and E. McMullin, eds., Philosophical Consequences of Quantum Theory, 9. The descriptive incompleteness with which Einstein charged the theory suggests other problems. A particularly dramatic one arose in correspondence between Schrödinger and Einstein; namely, the “gruesome” Schrödinger cat paradox. Here a cat is confined in a closed chamber containing a radioactive atom with a fifty-fifty chance of decaying in the next hour. If the atom decays it triggers a relay that causes a hammer to fall and smash a glass vial holding a quantity of    766 prussic acid sufficient to kill the cat. According to the Schrödinger equation, after an hour the state function for the entire atom ! relay ! hammer ! glass vial ! cat system is such that if we observe the cat the probability for finding it alive dead is 50 percent. However, this evolved state function is one for which there is no definite result; according to it, the cat is neither alive nor dead. How then does any definite fact of the matter arise, and when? Is the act of observation itself instrumental in bringing about the observed result, does that result come about by virtue of some special random process, or is there some other account compatible with definite results of measurements? This is the so-called quantum measurement problem and it too is an active area of research. 


quasi-demonstratum: The use of ‘quasi-‘ is implicatural. Grice is implicating this is NOT a demonstratum. By a demonstratum he is having in mind a Kaplanian ‘dthis’ or ‘dthat.’ Grice was obsessed with this or that. An abstractum (such as “philosopher”) needs to be attached in a communicatum by what Grice calls a ‘quasi-demonstrative,’ and for which he uses “φ.” Consider, Grice says, an utterance, out of the blue, such as ‘The philosopher in the garden seems bored,’ involving two iota-operators. As there may be more that a philosopher in a garden in the great big world, the utterer intends his addressee to treat the utterance as expandable into ‘The A which is φ is B,’ where “φ” is a quasi-demonstrative epithet to be identified in a particular context of utterance. The utterer intends that, to identify  the denotatum of “φ” for a particular utterance of ‘The philosopher in the garden seems bored,’ the addressee wil proceed via the identification of a particular philosopher, say Grice, as being a good candidate for being the philosopher meant. The addressee is also intended to identify the candidate for a denotatum of φ by finding in the candidate a feature, e. g., that of being the garden at St. John’s, which is intended to be used to yield a composite epithet (‘philosopher in St. John’s garden’), which in turn fills the bill of being the epithet which the utterer believes is being uniquely satisfied by the philosopher selected as the candidate. Determining the denotatum of “φ” standardly involve determining what feature the utterer believes is uniquely instantiated by the predicate “philosopher.” This in turn involves satisfying oneself that some particular feature is in fact uniquely satisfied by a particular actual item, viz. a particular philosopher such as Grice seeming bored in the garden of St. John’s.

quasi-indicator, Castañeda’s term for an expression used to ascribe indexical reference to a speaker or thinker. If John says “I am hungry” it is incorrect to report what he said with ‘John claims that I am hungry’, since ‘I’, being an indexical, expresses speaker’s reference, not John’s. However, ‘John claims that John is hungry’ fails to represent the indexical element of his assertion. Instead, we use ‘John claims that he himself is hungry’, where ‘he himself’ is a quasiindicator depicting John’s reference to himself qua self. Because of its subjective and perspectival character, we cannot grasp the exact content of another’s indexical reference, yet quasi-indexical representations are possible since we confront the world through generically the same indexical modes of presentation. If these modes are irreducible, then quasi-indicators are indispensable for describing the thoughts and experiences of others. As such, they are not equivalent to or replaceable by any antecedents occurring outside the scope of psychological verbs to which they are subordinated. 


Quineianism: corners, also called corner quotes, quasi-quotes, a notational device ] ^ introduced by Quine Mathematical Logic, 0 to provide a conveniently brief way of speaking generally about unspecified expressions of such and such kind. For example, a logician might want a conveniently brief way of saying in the metalanguage that the result of writing a wedge ‘7’ the dyadic logical connective for a truth-functional use of ‘or’ between any two well-formed formulas wffs in the object language is itself a wff. Supposing the Grecian letters ‘f’ and ‘y’ available in the metalanguage as variables ranging over wffs in the object language, it is tempting to think that the formation rule stated above can be succinctly expressed simply by saying that if f and y are wffs, then ‘f 7 y’ is a wff. But this will not do, for ‘f 7 y’ is not a wff. Rather, it is a hybrid expression of two variables of the metalanguage and a dyadic logical connective of the object language. The problem is that putting quotation marks around the Grecian letters merely results in designating those letters themselves, not, as desired, in designating the context of the unspecified wffs. Quine’s device of corners allows one to transcend this limitation of straight quotation since quasi-quotation, e.g., ]f 7 y^, amounts to quoting the constant contextual background, ‘# 7 #’, and imagining the unspecified expressions f and y written in the blanks.  Quine, Willard Van Orman – see Quine, “Reply to H. P. Grice,” --  philosopher and logician, renowned for his rejection of the analyticsynthetic distinction and for his advocacy of extensionalism, naturalism, physicalism, empiricism, and holism. Quine took his doctorate in philosophy at Harvard in 2. After four years of postdoctoral fellowships, he was appointed to the philosophy faculty at Harvard in 6. There he remained until he retired from teaching in 8. During six decades Quine published scores of journal articles and more than twenty books. His writings touch a number of areas, including logic, philosophy of logic, set theory, philosophy of language, philosophy of mind, philosophy of science, metaphysics, epistemology, and ethics. Among his most influential articles and books are “New Foundations for Mathematical Logic” 6, “Two Dogmas of Empiricism” 1, “Epistemology Naturalized” 9, and Word and Object 0. In “New Foundations” he develops a set theory that avoids Russell’s paradox without relying on Russell’s theory of types. Rather, following Ernst Zermelo, Quine drops the presumption that every membership condition determines a set. The system of “New Foundations” continues to be widely discussed by mathematicians. “Two Dogmas” sets out to repudiate what he sees as two dogmas of logical empiricism. The first is the so-called analyticsynthetic distinction; the second is a weak form of reductionism to the effect that each synthetic statement has associated with it a unique set of confirming experiences and a unique set of infirming experiences. Against the first dogma, Quine argues that none of the then-current attempts to characterize analyticity e.g., “a statement is analytic if and only if it is true solely in virtue of its meaning” do so with sufficient clarity, and that any similar characterization is likewise doomed to fail. Against the second dogma, Quine argues that a more accurate account of the relation between the statements of a theory and experience is holistic rather than reductionistic, that is, only as a corporate body do the statements of a theory face the tribunal of experience. Quine concludes that the effects of rejecting these two dogmas of empiricism are 1 a blurring of the supposed boundary between speculative metaphysics and natural science and 2 a shift toward pragmatism. In “Epistemology Naturalized” Quine argues in favor of naturalizing epistemology: old-time epistemology first philosophy has failed in its attempt to ground science on something firmer than science and should, therefore, be replaced by a scientific account of how we acquire our overall theory of the world and why it works so well. In Word and Object, Quine’s most famous book, he argues in favor of 1 naturalizing epistemology, 2 physicalism as against phenomenalism and mindbody dualism, and 3 extensionality as against intensionality. He also 4 develops a behavioristic conception of sentence-meaning, 5 theorizes about language learning, 6 speculates on the ontogenesis of reference, 7 explains various forms of ambiguity and vagueness, 8 recommends measures for regimenting language so as to eliminate ambiguity and vagueness as well as to make a theory’s logic and ontic commitments perspicuous “to be is to be the value of a bound variable”, 9 argues against quantified modal logic and the essentialism it presupposes, 10 argues for Platonic realism in mathematics, 11 argues for scientific realism and against instrumentalism, 12 develops a view of philosophical analysis as explication, 13 argues against analyticity and for holism, 14 argues against countenancing propositions, and 15 argues that the meanings of theoretical sentences are indeterminate and that the reference of terms is inscrutable. Quine’s subsequent writings have largely been devoted to summing up, clarifying, and expanding on themes found in Word and Object. 


A.M. Quinton’s Gedanke Experiment: from “Spaces and Times,” Philosophy.“hardly Thought Out” – Is this apriori or a posteriori? H. P. Grice. Space is ordinarily seen to be a unique individual. All real things are contained in one and the same space, and all spaces are part of the one space. In principle, every place can be reached from every other place by traveling through intermediate places. The spatial relation is symmetrical. Grice’s friend, A. M. Quinton devised a thought experiment to challenge this picture. Suppose that we have richly coherent and connected experience in our dreams just as we have in waking life, so that it becomes arbitrary to claim that our dream experience is not of an objectively existing world like the world of our waking experience. If the space of my waking world and my dream world are not mutually accessible, it is unlikely that we are justified in claiming to be living in a single spatially isolated world. Hence, space is not essentially singular. In assessing this account, we might distinguish between systematic and public physical space and fragmentary and private experiential space. The two-space myth raises questions about how we can justify moving from experiential space to objective space in the world as it is. “We can at least conceive circumstances in which we should have good reason to say that we know of real things located in two distinct spaces.” Quinton, “Spaces and Times,” Philosophy 37



Radix -- Radix -- Grice often talked about logical atomism and molecular propositions – and radix – which is an atomic metaphor -- Democritus, Grecian preSocratic philosopher. He was born at Abdera, in Thrace. Building on Leucippus and his atomism, he developed the atomic theory in The Little World-system and numerous other writings. In response to the Eleatics’ argument that the impossibility of not-being entailed that there is no change, the atomists posited the existence of a plurality of tiny indivisible beings  the atoms  and not-being  the void, or empty space. Atoms do not come into being or perish, but they do move in the void, making possible the existence of a world, and indeed of many worlds. For the void is infinite in extent, and filled with an infinite number of atoms that move and collide with one another. Under the right conditions a concentration of atoms can begin a vortex motion that draws in other atoms and forms a spherical heaven enclosing a world. In our world there is a flat earth surrounded by heavenly bodies carried by a vortex motion. Other worlds like ours are born, flourish, and die, but their astronomical configurations may be different from ours and they need not have living creatures in them. The atoms are solid bodies with countless shapes and sizes, apparently having weight or mass, and capable of motion. All other properties are in some way derivative of these basic properties. The cosmic vortex motion causes a sifting that tends to separate similar atoms as the sea arranges pebbles on the shore. For instance heavier atoms sink to the center of the vortex, and lighter atoms such as those of fire rise upward. Compound bodies can grow by the aggregations of atoms that become entangled with one another. Living things, including humans, originally emerged out of slime. Life is caused by fine, spherical soul atoms, and living things die when these atoms are lost. Human culture gradually evolved through chance discoveries and imitations of nature. Because the atoms are invisible and the only real properties are properties of atoms, we cannot have direct knowledge of anything. Tastes, temperatures, and colors we know only “by convention.” In general the senses cannot give us anything but “bastard” knowledge; but there is a “legitimate” knowledge based on reason, which takes over where the senses leave off  presumably demonstrating that there are atoms that the senses cannot testify of. Democritus offers a causal theory of perception  sometimes called the theory of effluxes  accounting for tastes in terms of certain shapes of atoms and for sight in terms of “effluences” or moving films of atoms that impinge on the eye. Drawing on both atomic theory and conventional wisdom, Democritus develops an ethics of moderation. The aim of life is equanimity euthumiê, a state of balance achieved by moderation and proportionate pleasures. Envy and ambition are incompatible with the good life. Although Democritus was one of the most prolific writers of antiquity, his works were all lost. Yet we can still identify his atomic theory as the most fully worked out of pre-Socratic philosophies. His theory of matter influenced Plato’s Timaeus, and his naturalist anthropology became the prototype for liberal social theories. Democritus had no immediate successors, but a century later Epicurus transformed his ethics into a philosophy of consolation founded on atomism. Epicureanism thus became the vehicle through which atomic theory was transmitted to the early modern period. 


ramseyified description. Grice enjoyed Ramsey’s Engish humour: if you can say it, you can’t whistle it either. Applied by Grice in “Method.”Agent A is in a D state just in case there is a predicate “D”  introduced via implicit definition by nomological generalisation L within theory θ, such L obtains, A instantiates D. Grice distinguishes the ‘descriptor’ from a more primitive ‘name.’ The reference is to Ramsey. The issue is technical and relates to the introduction of a predicate constant – something he would never have dared to at Oxford with Gilbert Ryle and D. F. Pears next to him! But in the New World, they loved a formalism! And of course Ramsey would not have anything to do with it! Ramsey: p. r. – cited by Grice, “The Ramseyfied description. Frank Plumpton 330, influential 769 R    769 British philosopher of logic and mathematics. His primary interests were in logic and philosophy, but decades after his untimely death two of his publications sparked new branches of economics, and in pure mathematics his combinatorial theorems gave rise to “Ramsey theory” Economic Journal 7, 8; Proc. London Math. Soc., 8. During his lifetime Ramsey’s philosophical reputation outside Cambridge was based largely on his architectural reparation of Whitehead and Russell’s Principia Mathematica, strengthening its claim to reduce mathematics to the new logic formulated in Volume 1  a reduction rounded out by Vitters’s assessment of logical truths as tautologous. Ramsey clarified this logicist picture of mathematics by radically simplifying Russell’s ramified theory of types, eliminating the need for the unarguable axiom of reducibility Proc. London Math. Soc., 5. His philosophical work was published mostly after his death. The canon, established by Richard Braithwaite The Foundations of Mathematics . . . , 1, remains generally intact in D. H. Mellor’s edition Philosophical Papers, 0. Further writings of varying importance appear in his Notes on Philosophy, Probability and Mathematics M. C. Galavotti, ed., 1 and On Truth Nicholas Rescher and Ulrich Majer, eds., 1. As an undergraduate Ramsey observed that the redundancy account of truth “enables us to rule out at once some theories of truth such as that ‘to be true’ means ‘to work’ or ‘to cohere’ since clearly ‘p works’ and ‘p coheres’ are not equivalent to ‘p’.” Later, in the canonical “Truth and Probability” 6, he readdressed to knowledge and belief the main questions ordinarily associated with truth, analyzing probability as a mode of judgment in the framework of a theory of choice under uncertainty. Reinvented and acknowledged by L. J. Savage Foundations of Statistics, 4, this forms the theoretical basis of the currently dominant “Bayesian” view of rational decision making. Ramsey cut his philosophical teeth on Vitters’s Tractatus LogicoPhilosophicus. His translation appeared in 2; a long critical notice of the work 3 was his first substantial philosophical publication. His later role in Vitters’s rejection of the Tractatus is acknowledged in the foreword to Philosophical Investigations 3. The posthumous canon has been a gold mine. An example: “Propositions” 9, reading the theoretical terms T, U, etc. of an axiomatized scientific theory as variables, sees the theory’s content as conveyed by a “Ramsey sentence” saying that for some T, U, etc., the theory’s axioms are true, a sentence in which all extralogical terms are observational. Another example: “General Propositions and Causality” 9, offering in a footnote the “Ramsey test” for acceptability of conditionals, i.e., add the if-clause to your ambient beliefs minimally modified to make the enlarged set self-consistent, and accept the conditional if the then-clause follows.  Refs: “Philosophical psychology,” in BANC. ‘
Ramus, Petrus, in , Pierre de La Ramée, philosopher who questioned the authority of Aristotle and influenced the methods and teaching of logic through the seventeenth century. In 1543 he published his Dialecticae institutiones libri XV, and in 1555 reworked it as Dialectique  the first philosophical work in . He was appointed by François I as the first Regius Professor of the  of Paris, where he taught until he was killed in the St. Bartholomew’s Day Massacre in 1572. Ramus doubted that we can apodictically intuit the major premises required for Aristotle’s rational syllogism. Turning instead to Plato, Ramus proposed that a “Socratizing” of logic would produce a more workable and fruitful result. As had Agricola and Sturm, he reworked the rhetorical and liberal arts traditions’ concepts of “invention, judgment, and practice,” placing “method” in the center of judgment. Proceeding in these stages, we can “read” nature’s “arguments,” because they are modeled on natural reasoning, which in turn can emulate the reasoning by which God creates. Often his results were depicted graphically in tables as in chapter IX of Hobbes’s Leviathan. When carefully done they would show both what is known and where gaps require further investigation; the process from invention to judgment is continuous. Ramus’s works saw some 750 editions in one century, fostering the “Ramist” movement in emerging Protestant universities and the  colonies. He influenced Bacon, Hobbes, Milton, Methodism, Cambridge Platonism, and Alsted in Europe, and Hooker and Congregationalism in Puritan America. Inconsistencies make him less than a major figure in the history of logic, but his many works and their rapid popularity led to philosophical and educational efforts to bring the world of learning to the “plain man” by using the vernacular, and by more closely correlating the rigor of philosophy with the memorable and persuasive powers of rhetoric; he saw this goal as Socratic.
Rashdall, Hastings 18584, English historian, theologian, and personal idealist. While acknowledging that Berkeley needed to be corrected by Kant, Rashdall defended Berkeley’s thesis that objects only exist for minds. From this he concluded that there is a divine mind that guarantees the existence of nature and the objectivity of morality. In his most important philosophical work, The Theory of Good and Evil 7, Rashdall argued that actions are right or wrong according to whether they produce well-being, in which pleasure as well as a virtuous disposition are constituents. Rashdall coined the name ‘ideal utilitarianism’ for this view.

rational choice: as oppose to irrational choice. V. choose. Grice, “Impicatures of ‘choosing’” “Hobson’s choice, or Hobson’s ‘choice’?” Pears on conversational implicature and choosing. That includes choosing in its meaning, and then it is easy to ac- cept the suggestion that choosing might be an S-factor, and that the hypothetical might be a Willkür: one of Grice’s favourite words from Kant – “It’s so Kantish!” I told Pears about this, and having found it’s cognate with English ‘choose,’ he immediately set to write an essay on the topic!” f., ‘option, discretion, caprice,’ from MidHG. willekür, f., ‘free choice, free will’; gee kiesen and Kur-.kiesen, verb, ‘to select,’ from Middle High German kiesen, Old High German chiosan, ‘to test, try, taste for the purpose of testing, test by tasting, select after strict examination.’ Gothic kiusan, Anglo-Saxon ceósan, English to choose. Teutonic root kus (with the change of s into rkur in the participle erkoren, see also Kur, ‘choice’), from pre-Teutonic gus, in Latin gus-tusgus-tare, Greek γεύω for γεύσω, Indian root juš, ‘to select, be fond of.’ Teutonic kausjun passed as kusiti into Slavonic. Insofar as a philosopher explains and predicts the actum as consequences of a choice, which are themselves explained in terms of alleged reasons, it must depict agents as to some extent rational. Rationality, like reasons, involves evaluation, and just as one can assess the rationality of individual choices, so one can assess the rationality of social choices and examine how they are and ought to be related to the preferences and judgments of the actor. In addition, there are intricate questions concerning rationality in ‘strategic’ situations in which outcomes depend on the choices of multiple individuals. Since rationality is a central concept in branches of philosophy such as Grice’s pragmatics, action theory, epistemology, ethics, and philosophy of mind, studies of rationality frequently cross the boundaries various branches of philosophy. The barebones theory of rationality  takes an agent’s preferences, i. e. his rankings of states of affairs, to be rational if they are complete and transitive, and it takes the agent’s choice to be rational if the agent does not prefer any feasible alternative to the one he chooses. Such a theory of rationality is clearly too weak. It says nothing about belief or what rationality implies when the agent does not know (with certainty) everything relevant to his choice. It may also be too strong, since there is nothing irrational about having incomplete preferences in situations involving uncertainty. Sometimes it is rational to suspend judgment and to refuse to rank alternatives that are not well understood. On the other hand, transitivity is a plausible condition, and the so-called “money pump” argument demonstrates that if one’s preferences are intransitive and one is willing to make exchanges, then one can be exploited. Suppose an agent A prefers X to YY to Z and Z to X, and that A will pay some small amount of money $P to exchange Y for XZ for Y, and X for Z. That means that, starting with ZA will pay $P for Y, then $P again for X, then $P again for Z and so on. An agent need not be this stupid. He will instead refuse to trade or adjust his preferences to eliminate the intransitivity. On the other hand, there is evidence that an agent’s preferences are not in fact transitive. Such evidence does not establish that transitivity is not a requirement of rationality. It may show instead that an agent may sometimes not be rational. In, e. g. the case of preference reversals,” it seems plausible that the agent in fact makes the ‘irrational choice.’ Evidence of persistent violations of transitivity is disquieting, since standards of rationality should not be impossibly high. A further difficulty with the barebones theory of rationality concerns the individuation of the objects of preference or choice. Consider e. g. data from a multi-stage ultimatum game. Suppose A can propose any division of $10 between A and BB can accept or reject A’s proposal. If B rejects the proposal, the amount of money drops to $5, and B gets to offer a division of the $5 which A can accept or reject. If A rejects B’s offer, both players get nothing. Suppose that A proposes to divide the money with $7 for A and $3 for BB declines and offers to split the $5 evenly, with $2.50 for each. Behaviour such as this is, in fact, common. Assuming that B prefers more money to less, these choices appear to be a violation of transitivity. B prefers $3 to $2.50, yet declines $3 for certain for $2.50 (with some slight chance of A declining and B getting nothing). But the objects of choice are not just quantities of money. B is turning down $3 as part of “a raw deal” in favour of $2.50 as part of a fair arrangement. If the objects of choice are defined in this way, there is no failure of transitivity. This plausible observation gives rise to a serious conceptual problem that Grice thinks he can solve. Unless there are constraints on how the objects of choice are individuated, conditions of rationality such as transitivity are empty. A’s choice of X over YY over Z and Z over X does not violate transitivity if “X when the alternative is Y” is not the same object of choice as “X when the alternative is Z”. A further substantive principle of rationality isrequired to limit how alternatives are individuated or to require that agents be indifferent between alternatives such as “X when the alternative is Y” and “X when the alternative is Z.” To extend the theory of rationality to circumstances involving risk (where the objects of choice are lotteries with known probabilities) and uncertainty (where agents do not know the probabilities or even all the possible outcomes of their choices) requires a further principle of rationality, as well as a controversial technical simplification. Subjective Bayesians suppose that the agent in circumstances of uncertainty has well-defined subjective probabilities (degrees of belief) over all the payoffs and thus that the objects of choice can be modeled as lotteries, just as in circumstances involving risk, though with subjective probabilities in place of objective probabilities. The most important of the axioms needed for the theory of rational choice under conditions of risk and uncertainty is the independence condition. The preferences of a rational agent between two lotteries that differ in only one outcome should match his preferences between the differing outcomes. A considerable part of Grice’s rational choice theory is concerned with formalizations of conditions of rationality and investigation of their implications. When they are complete and transitive and satisfy a further continuity condition, the agent’s preferences can be represented by an ordinal utility function, i. e. it is then possible to define a function that represents an agent’s preferences so that U(X) > U(Y) iff if the agent prefers X to Y, and U(X) = U(Y) iff if the agent is indifferent between X and Y. This function represents the preference ranking, and contains no information beyond the ranking. When in addition they satisfy the independence condition, the agent’s preferences can be represented by an expected utility function (Ramsey 1926). Such a function has two important properties. First, the expected utility of a lottery is equal to the sum of the expected utilities of its prizes weighted by their probabilities. Second, expected utility functions are unique up to a positive affine transformation. If U and V are both expected utility functions representing the preferences of an agent, for all objects of preference, XV(X) must be equal to aU(X) + b, where a and b are real numbers and a is positive. The axioms of rationality imply that the agent’s degrees of belief will satisfy the axioms of the probability calculus. A great deal of controversy surrounds Grice’s theory of rationality, and there have been many formal investigations into amendeding it. Although a conversational pair is very different from this agent and this other agent, the pair has a mechanism to evaluate alternatives and make a choice. The evaluation and the choice may be rational or irrational. Pace Grice’s fruitful seminars on rational helpfulness in cooperation, t is not, however, obvious, what principles of rationality should govern the choices and evaluations of the conversational dyad. Transitivity is one plausible condition. It seems that a conversational dyad that chooses X when faced with the alternatives X or YY when faced with the alternatives Y or Z and Z when faced with the alternatives X or Z, the conversational dyad has had “a change of hearts” or is choosing ‘irrationally.’ Yet, purported irrationalities such as these can easily arise from a standard mechanism that aims to link a ‘conversational choice’ and individual preferences. Suppose there are two conversationalists in the dyad. Individual One ranks the alternatives XYZ. Individual Two ranks them YZX. (An Individual Three if he comes by, may ranks them ZXY). If decisions are made by pairwise majority voting, X will be chosen from the pair (XY), Y will be chosen from (YZ), and Z will be chosen from (XZ). Clearly this is unsettling. But is a possible cycle in a ‘conversational choice’ “irrational”? Similar problems affect what one might call the logical coherence of a conversational judgment Suppose the dyad consists of two individuals who make the following judgments concerning the truth or falsity of the propositions P and Q and that “conversational” judgment follows the majority. P if P, Q Q Conversationalist A                        true true true Conversationalist B false true false (Conversationalist C, if he passes by) true   false false “Conversation” as an Institution: true true false. The judgment of each conversationalist is consistent with the principles of logic, while the “conversational co-operative” judgment violates the principles of logic. The “cooperative conversational,” “altruistic,” “joint judgment” need not be consistent with the principles of egoist logic. Although conversational choice theory bears on questions of conversational rationality, most work in conversational choice theory explores the consequences of principles of rationality coupled with this or that explicitly practical, or meta-ethical constraint. Grice does not use ‘moral,’ since he distinguishes what he calls a ‘conversational maxim’ from a ‘moral maxim’ of the type Kant universalizes. Arrow’s impossibility theorem assumes that an individual preference and a concerted, joint preference are complete and transitive and that the method of forming a conversational, concerted, joint preference (or making a conversational, concerted, choice) issues in some joint preference ranking or joint choice for any possible profile (or dossier, as Grice prefers) of each individual preference. Arrow’s impossibility theorem imposes a weak UNANIMITY (one-soul) condition. If A and B prefers X to Y, Y must not jointly preferred. Arrow’s impossibility theorem requires that there be no boss (call him Immanuel, the Genitor) whose preference determines a joint preference or choice irrespective of the preferences of anybody else. Arrow’s impossibility theorem imposes the condition that the joint concerted conversational preference between X and Y should depend on how A and B rank X and Y and on nothing else. Arrow’s impossibility theorem proves that no method of co-relating or linking conversational and a monogogic preference can satisfy all these conditions. If an monopreference and a mono-evaluations both satisfy the axioms of expected utility theory (with shared or objective probabilities) and that a duo-preference conform to the unanimous mono-preference, a duo- evaluation is determined by a weighted sum of individual utilities. A form of weighted futilitarianism, which prioritizes the interests of the recipient, rather than the emissor, uniquely satisfies a longer list of rational and practical constraints. When there are instead disagreements in probability assignments, there is an impossibility result. The unanimity (‘one-soul’) condition implies that for some profiles of individual preferences, a joint or duo-evaluation will not satisfy the axioms of expected utility theory. When outcomes depend on what at least two autonomous free agents do, one agent’s best choice may depend on what the other agent chooses. Although the principles of rationality governing mono-choice still apply, there is a further principle of conversational rationality governing the ‘expectation’ (to use Grice’s favourite term) of the action (or conversational move) of one’s co-conversationalist (and obviously, via the mutuality requirement of applicational universalizability) of the co-conversationalist’s ‘expectation’ concerning the conversationalist’s action and expectation, and so forth. Grice’s Conversational Game Theory plays a protagonist role within philosophy, and it is relevant to inquiries concerning conversational rationality and inquiries concerning conversational ethics. Rational choice -- Probability -- Dutch book, a bet or combination of bets whereby the bettor is bound to suffer a net loss regardless of the outcome. A simple example would be a bet on a proposition p at odds of 3 : 2 combined with a bet on not-p at the same odds, the total amount of money at stake in each bet being five dollars. Under this arrangement, if p turned out to be true one would win two dollars by the first bet but lose three dollars by the second, and if p turned out to be false one would win two dollars by the second bet but lose three dollars by the first. Hence, whatever happened, one would lose a dollar.  Dutch book argument, the argument that a rational person’s degrees of belief must conform to the axioms of the probability calculus, since otherwise, by the Dutch book theorem, he would be vulnerable to a Dutch book. R.Ke. Dutch book theorem, the proposition that anyone who a counts a bet on a proposition p as fair if the odds correspond to his degree of belief that p is true and who b is willing to make any combination of bets he would regard individually as fair will be vulnerable to a Dutch book provided his degrees of belief do not conform to the axioms of the probability calculus. Thus, anyone of whom a and b are true and whose degree of belief in a disjunction of two incompatible propositions is not equal to the sum of his degrees of belief in the two propositions taken individually would be vulnerable to a Dutch book.


rational decision theory -- decidability, as a property of sets, the existence of an effective procedure a “decision procedure” which, when applied to any object, determines whether or not the object belongs to the set. A theory or logic is decidable if and only if the set of its theorems is. Decidability is proved by describing a decision procedure and showing that it works. The truth table method, for example, establishes that classical propositional logic is decidable. To prove that something is not decidable requires a more precise characterization of the notion of effective procedure. Using one such characterization for which there is ample evidence, Church proved that classical predicate logic is not decidable. decision theory, the theory of rational decision, often called “rational choice theory” in political science and other social sciences. The basic idea probably Pascal’s was published at the end of Arnaud’s Port-Royal Logic 1662: “To judge what one must do to obtain a good or avoid an evil one must consider not only the good and the evil in itself but also the probability of its happening or not happening, and view geometrically the proportion that all these things have together.” Where goods and evils are monetary, Daniel Bernoulli 1738 spelled the idea out in terms of expected utilities as figures of merit for actions, holding that “in the absence of the unusual, the utility resulting from a fixed small increase in wealth will be inversely proportional to the quantity of goods previously possessed.” This was meant to solve the St. Petersburg paradox: Peter tosses a coin . . . until it should land “heads” [on toss n]. . . . He agrees to give Paul one ducat if he gets “heads” on the very first throw [and] with each additional throw the number of ducats he must pay is doubled. . . . Although the standard calculation shows that the value of Paul’s expectation [of gain] is infinitely great [i.e., the sum of all possible gains $ probabilities, 2n/2 $ ½n], it has . . . to be admitted that any fairly reasonable man would sell his chance, with great pleasure, for twenty ducats. In this case Paul’s expectation of utility is indeed finite on Bernoulli’s assumption of inverse proportionality; but as Karl Menger observed 4, Bernoulli’s solution fails if payoffs are so large that utilities are inversely proportional to probabilities; then only boundedness of utility scales resolves the paradox. Bernoulli’s idea of diminishing marginal utility of wealth survived in the neoclassical texts of W. S. Jevons 1871, Alfred Marshall 0, and A. C. Pigou 0, where personal utility judgment was understood to cause preference. But in the 0s, operationalistic arguments of John Hicks and R. G. D. Allen persuaded economists that on the contrary, 1 utility is no cause but a description, in which 2 the numbers indicate preference order but not intensity. In their Theory of Games and Economic Behavior 6, John von Neumann and Oskar Morgenstern undid 2 by pushing 1 further: ordinal preferences among risky prospects were now seen to be describable on “interval” scales of subjective utility like the Fahrenheit and Celsius scales for temperature, so that once utilities, e.g., 0 and 1, are assigned to any prospect and any preferred one, utilities of all prospects are determined by overall preferences among gambles, i.e., probability distributions over prospects. Thus, the utility midpoint between two prospects is marked by the distribution assigning probability ½ to each. In fact, Ramsey had done that and more in a little-noticed essay “Truth and Probability,” 1 teasing subjective probabilities as well as utilities out of ordinal preferences among gambles. In a form independently invented by L. J. Savage Foundations of Statistics, 4, this approach is now widely accepted as a basis for rational decision analysis. The 8 book of that title by Howard Raiffa became a theoretical centerpiece of M.B.A. curricula, whose graduates diffused it through industry, government, and the military in a simplified format for defensible decision making, namely, “costbenefit analyses,” substituting expected numbers of dollars, deaths, etc., for preference-based expected utilities. Social choice and group decision form the native ground of interpersonal comparison of personal utilities. Thus, John C. Harsanyi 5 proved that if 1 individual and social preferences all satisfy the von Neumann-Morgenstern axioms, and 2 society is indifferent between two prospects whenever all individuals are, and 3 society prefers one prospect to another whenever someone does and nobody has the opposite preference, then social utilities are expressible as sums of individual utilities on interval scales obtained by stretching or compressing the individual scales by amounts determined by the social preferences. Arguably, the theorem shows how to derive interpersonal comparisons of individual preference intensities from social preference orderings that are thought to treat individual preferences on a par. Somewhat earlier, Kenneth Arrow had written that “interpersonal comparison of utilities has no meaning and, in fact, there is no meaning relevant to welfare economics in the measurability of individual utility” Social Choice and Individual Values, 1  a position later abandoned P. Laslett and W. G. Runciman, eds., Philosophy, Politics and Society, 7. Arrow’s “impossibility theorem” is illustrated by cyclic preferences observed by Condorcet in 1785 among candidates A, B, C of voters 1, 2, 3, who rank them ABC, BCA, CAB, respectively, in decreasing order of preference, so that majority rule yields intransitive preferences for the group of three, of whom two 1, 3 prefer A to B and two 1, 2 prefer B to C but two 2, 3 prefer C to A. In general, the theorem denies existence of technically democratic schemes for forming social preferences from citizens’ preferences. A clause tendentiously called “independence of irrelevant alternatives” in the definition of ‘democratic’ rules out appeal to preferences among non-candidates as a way to form social preferences among candidates, thus ruling out the preferences among gambles used in Harsanyi’s theorem. See John Broome, Weighing Goods, 1, for further information and references. Savage derived the agent’s probabilities for states as well as utilities for consequences from preferences among abstract acts, represented by deterministic assignments of consequences to states. An act’s place in the preference ordering is then reflected by its expected utility, a probability-weighted average of the utilities of its consequences in the various states. Savage’s states and consequences formed distinct sets, with every assignment of consequences to states constituting an act. While Ramsey had also taken acts to be functions from states to consequences, he took consequences to be propositions sets of states, and assigned utilities to states, not consequences. A further step in that direction represents acts, too, by propositions see Ethan Bolker, Functions Resembling Quotients of Measures,  Microfilms, 5; and Richard Jeffrey, The Logic of Decision, 5, 0. Bolker’s representation theorem states conditions under which preferences between truth of propositions determine probabilities and utilities nearly enough to make the position of a proposition in one’s preference ranking reflect its “desirability,” i.e., one’s expectation of utility conditionally on it. decision theory decision theory 208   208 Alongside such basic properties as transitivity and connexity, a workhorse among Savage’s assumptions was the “sure-thing principle”: Preferences among acts having the same consequences in certain states are unaffected by arbitrary changes in those consequences. This implies that agents see states as probabilistically independent of acts, and therefore implies that an act cannot be preferred to one that dominates it in the sense that the dominant act’s consequences in each state have utilities at least as great as the other’s. Unlike the sure thing principle, the principle ‘Choose so as to maximize CEU conditional expectation of utility’ rationalizes action aiming to enhance probabilities of preferred states of nature, as in quitting cigarettes to increase life expectancy. But as Nozick pointed out in 9, there are problems in which choiceworthiness goes by dominance rather than CEU, as when the smoker like R. A. Fisher in 9 believes that the statistical association between smoking and lung cancer is due to a genetic allele, possessors of which are more likely than others to smoke and to contract lung cancer, although among them smokers are not especially likely to contract lung cancer. In such “Newcomb” problems choices are ineffectual signs of conditions that agents would promote or prevent if they could. Causal decision theories modify the CEU formula to obtain figures of merit distinguishing causal efficacy from evidentiary significance  e.g., replacing conditional probabilities by probabilities of counterfactual conditionals; or forming a weighted average of CEU’s under all hypotheses about causes, with agents’ unconditional probabilities of hypotheses as weights; etc. Mathematical statisticians leery of subjective probability have cultivated Abraham Wald’s Theory of Statistical Decision Functions 0, treating statistical estimation, experimental design, and hypothesis testing as zero-sum “games against nature.” For an account of the opposite assimilation, of game theory to probabilistic decision theory, see Skyrms, Dynamics of Rational Deliberation 0. The “preference logics” of Sören Halldén, The Logic of ‘Better’ 7, and G. H. von Wright, The Logic of Preference 3, sidestep probability. Thus, Halldén holds that when truth of p is preferred to truth of q, falsity of q must be preferred to falsity of p, and von Wright with Aristotle holds that “this is more choiceworthy than that if this is choiceworthy without that, but that is not choiceworthy without this” Topics III, 118a. Both principles fail in the absence of special probabilistic assumptions, e.g., equiprobability of p with q. Received wisdom counts decision theory clearly false as a description of human behavior, seeing its proper status as normative. But some, notably Davidson, see the theory as constitutive of the very concept of preference, so that, e.g., preferences can no more be intransitive than propositions can be at once true and false.  Rational decision: envelope paradox, an apparent paradox in decision theory that runs as follows. You are shown two envelopes, M and N, and are reliably informed that each contains some finite positive amount of money, that the amount in one unspecified envelope is twice the amount in the unspecified other, and that you may choose only one. Call the amount in M ‘m’ and that in N ‘n’. It might seem that: there is a half chance that m % 2n and a half chance that m = n/2, so that the “expected value” of m is ½2n ! ½n/2 % 1.25n, so that you should prefer envelope M. But by similar reasoning it might seem that the expected value of n is 1.25m, so that you should prefer envelope N. 
rationality – while Grice never used to employ ‘rationality’ he learned to! In “Retrospective epilogue” in fact he refers to the principle of conversational helpfulness as ‘promoting conversational rationality.’ Rationality as a faculty psychology, the view that the mind is a collection of departments responsible for distinct psychological functions. Related to faculty psychology is the doctrine of localization of function, wherein each faculty has a specific brain location. Faculty psychologies oppose theories of mind as a unity with one function e.g., those of Descartes and associationism or as a unity with various capabilities e.g., that of Ockham, and oppose the related holistic distributionist or mass-action theory of the brain. Faculty psychology began with Aristotle, who divided the human soul into five special senses, three inner senses common sense, imagination, memory and active and passive mind. In the Middle Ages e.g., Aquinas Aristotle’s three inner senses were subdivied, creating more elaborate lists of five to seven inward wits. Islamic physicianphilosophers such as Avicenna integrated Aristotelian faculty psychology with Galenic medicine by proposing brain locations for the faculties. Two important developments in faculty psychology occurred during the eighteenth century. First, Scottish philosophers led by Reid developed a version of faculty psychology opposed to the empiricist and associationist psychologies of Locke and Hume. The Scots proposed that humans were endowed by God with a set of faculties permitting knowledge of the world and morality. The Scottish system exerted considerable influence in the United States, where it was widely taught as a moral, character-building discipline, and in the nineteenth century this “Old Psychology” opposed the experimental “New Psychology.” Second, despite then being called a charlatan, Franz Joseph Gall 17581828 laid the foundation for modern neuropsychology in his work on localization of function. Gall rejected existing faculty psychologies as philosophical, unbiological, and incapable of accounting for everyday behavior. Gall proposed an innovative behavioral and biological list of faculties and brain localizations based on comparative anatomy, behavior study, and measurements of the human skull. Today, faculty psychology survives in trait and instinct theories of personality, Fodor’s theory that mental functions are implemented by neurologically “encapsulated” organs, and localizationist theories of the brain.
rationalism, the position that reason has precedence over other ways of acquiring knowledge, or, more strongly, that it is the unique path to knowledge. It is most often encountered as a view in epistemology, where it is traditionally contrasted with empiricism, the view that the senses are primary with respect to knowledge. It is important here to distinguish empiricism with respect to knowledge from empiricism with respect to ideas or concepts; whereas the former is opposed to rationalism, the latter is opposed to the doctrine of innate ideas. The term is also encountered in the philosophy of religion, where it may designate those who oppose the view that revelation is central to religious knowledge; and in ethics, where it may designate those who oppose the view that ethical principles are grounded in or derive from emotion, empathy, or some other non-rational foundation. The term ‘rationalism’ does not generally designate a single precise philosophical position; there are several ways in which reason can have precedence, and several accounts of knowledge to which it may be opposed. Furthermore, the very term ‘reason’ is not altogether clear. Often it designates a faculty of the soul, distinct from sensation, imagination, and memory, which is the ground of a priori knowledge. But there are other conceptions of reason, such as the narrower conception in which Pascal opposes reason to “knowledge of the heart” Pensées, section 110, or the computational conception of reason Hobbes advances in Leviathan I.5. The term might thus be applied to a number of philosophical positions from the ancients down to the present. Among the ancients, ‘rationalism’ and ‘empiricism’ especially denote two schools of medicine, the former relying primarily on a theoretical knowledge of the hidden workings of the human body, the latter relying on direct clinical experience. The term might also be used to characterize the views of Plato and later Neoplatonists, who argued that we have pure intellectual access to the Forms and general principles that govern reality, and rejected sensory knowledge of the imperfect realization of those Forms in the material world. In recent philosophical writing, the term ‘rationalism’ is most closely associated with the positions of a group of seventeenth-century philosophers, Descartes, Spinoza, Leibniz, and sometimes Malebranche. These thinkers are often referred to collectively as the Continental rationalists, and are generally opposed to the socalled British empiricists, Locke, Berkeley, and Hume. All of the former share the view that we have a non-empirical and rational access to the truth about the way the world is, and all privilege reason over knowledge derived from the senses. These philosophers are also attracted to mathematics as a model for knowledge in general. But these common views are developed in quite different ways. Descartes claims to take his inspiration from mathematics  not mathematics as commonly understood, but the analysis of the ancients. According to Descartes, we start from first principles known directly by reason the cogito ergo sum of the Meditations, what he calls intuition in his Rules for the Direction of the Mind; all other knowledge is deduced from there. A central aim of his Meditations is to show that this faculty of reason is trustworthy. The senses, on the other hand, are generally deceptive, leading us to mistake sensory qualities for real qualities of extended bodies, and leading us to the false philosophy of Aristotle and to Scholasticism. Descartes does not reject the senses altogether; in Meditation VI he argues that the senses are most often correct in circumstances concerning the preservation of life. Perhaps paradoxically, experiment is important to Descartes’s scientific work. However, his primary interest is in the theoretical account of the phenomena experiment reveals, and while his position is unclear, he may have considered experiment as an auxiliary to intuition and deduction, or as a second-best method that can be used with problems too complex for pure reason. Malebranche, following Descartes, takes similar views in his Search after Truth, though unlike Descartes, he emphasizes original sin as the cause of our tendency to trust the senses. Spinoza’s model for knowledge is Euclidean geometry, as realized in the geometrical form of the Ethics. Spinoza explicitly argues that we cannot have adequate ideas of the world through sensation Ethics II, propositions 1631. In the Ethics he does see a role for the senses in what he calls knowledge of the first and knowledge of the second kinds, and in the earlier Emendation of the Intellect, he suggests that the senses may be auxiliary aids to genuine knowledge. But the senses are imperfect and far less valuable, according to Spinoza, than intuition, i.e., knowledge of the third kind, from which sensory experience is excluded. Spinoza’s rationalism is implicit in a central proposition of the Ethics, in accordance with which “the order and connection of ideas is the same as the order and connection of things” Ethics II, proposition 7, allowing one to infer causal connections between bodies and states of the material world directly from the logical connections between ideas. Leibniz, too, emphasizes reason over the senses in a number of ways. In his youth he believed that it would be possible to calculate the truth-value of every sentence by constructing a logical language whose structure mirrors the structure of relations between concepts in the world. This view is reflected in his mature thought in the doctrine that in every truth, the concept of the predicate is contained in the concept of the subject, so that if one could take the God’s-eye view which, he concedes, we cannot, one could determine the truth or falsity of any proposition without appeal to experience Discourse on Metaphysics, section 8. Leibniz also argues that all truths are based on two basic principles, the law of non-contradiction for necessary truths, and the principle of sufficient reason for contingent truths Monadology, section 31, both of which can be known a priori. And so, at least in principle, the truth-values of all propositions can be determined a priori. This reflects his practice in physics, where he derives a number of laws of motion from the principle of the equality of cause and effect, which can be known a priori on the basis of the principle of sufficient reason. But, at the same time, referring to the empirical school of ancient medicine, Leibniz concedes that “we are all mere Empirics in three fourths of our actions” Monadology, section 28. Each of the so-called Continental rationalists does, in his own way, privilege reason over the senses. But the common designation ‘Continental rationalism’ arose only much later, probably in the nineteenth century. For their contemporaries, more impressed with their differences than their common doctrines, the Continental rationalists did not form a single homogeneous school of thought. 
rationality. In its primary sense, rationality is a normative concept that philosophers have generally tried to characterize in such a way that, for any action, belief, or desire, if it is rational we ought to choose it. No such positive characterization has achieved anything close to universal assent because, often, several competing actions, beliefs, or desires count as rational. Equating what is rational with what is rationally required eliminates the category of what is rationally allowed. Irrationality seems to be the more fundamental normative category; for although there are conflicting substantive accounts of irrationality, all agree that to say of an action, belief, or desire that it is irrational is to claim that it should always be avoided. Rationality is also a descriptive concept that refers to those intellectual capacities, usually involving the ability to use language, that distinguish persons from plants and most other animals. There is some dispute about whether some non-human animals, e.g., dolphins and chimpanzees, are rational in this sense. Theoretical rationality applies to beliefs. An irrational belief is one that obviously conflicts with what one should know. This characterization of an irrational belief is identical with the psychiatric characterization of a delusion. It is a personrelative concept, because what obviously conflicts with what should be known by one person need not obviously conflict with what should be known by another. On this account, any belief that is not irrational counts as rational. Many positive characterizations of rational beliefs have been proposed, e.g., 1 beliefs that are either self-evident or derived from self-evident beliefs by a reliable procedure and 2 beliefs that are consistent with the overwhelming majority of one’s beliefs; but all of these positive characterizations have encountered serious objections. Practical rationality applies to actions. For some philosophers it is identical to instrumental rationality. On this view, commonly called instrumentalism, acting rationally simply means acting in a way that is maximally efficient in achieving one’s goals. However, most philosophers realize that achieving one goal may conflict with achieving another, and therefore require that a rational action be one that best achieves one’s goals only when these goals are considered as forming a system. Others have added that all of these goals must be ones that would be chosen given complete knowledge and understanding of what it would be like to achieve these goals. On the latter account of rational action, the system of goals is chosen by all persons for themselves, and apart from consistency there is no external standpoint from which to evaluate rationally any such system. Thus, for a person with a certain system of goals it will be irrational to act morally. Another account of rational action is not at all person-relative. On this account, to act rationally is to act on universalizable principles, so that what is a reason for one person must be a reason for everyone. One point of such an account is to make it rationally required to act morally, thus making all immoral action irrational. However, if to call an action irrational is to claim that everyone would hold that it is always to be avoided, then it is neither irrational to act immorally in order to benefit oneself or one’s friends, nor irrational to act morally even when that goes against one’s system of goals. Only a negative characterization of what is rational as what is not irrational, which makes it rationally permissible to act either morally or in accordance with one’s own system of goals, as long as these goals meet some minimal objective standard, seems likely to be adequate. 
rationalization, 1 an apparent explanation of a person’s action or attitude by appeal to reasons that would justify or exculpate the person for it  if, contrary to fact, those reasons were to explain it; 2 an explanation or interpretation made from a rational perspective. In sense 1, rationalizations are pseudo-explanations, often motivated by a desire to exhibit an item in a favorable light. Such rationalizations sometimes involve self-deception. Depending on one’s view of justification, a rationalization might justify an action  by adducing excellent reasons for its performance  even if the agent, not having acted for those reasons, deserves no credit for so acting. In sense 2 a sense popularized in philosophy by Donald Davidson, rationalizations of intentional actions are genuine explanations in terms of agents’ reasons. In this sense, we provide a rationalization for  or “rationalize”  Robert’s shopping at Zed’s by identifying the reasons for which he does so: e.g., he wants to buy an excellent kitchen knife and believes that Zed’s sells the best cutlery in town. Also, the reasons for which an agent acts may themselves be said to rationalize the action. Beliefs, desires, and intentions may be similarly rationalized. In each case, a rationalization exhibits the rationalized item as, to some degree, rational from the standpoint of the person to whom it is attributed.
rational psychology, the a priori study of the mind. This was a large component of eighteenthand nineteenth-century psychology, and was contrasted by its exponents with empirical psychology, which is rooted in contingent experience. The term ‘rational psychology’ may also designate a mind, or form of mind, having the property of rationality. Current philosophy of mind includes much discussion of rational psychologies, but the notion is apparently ambiguous. On one hand, there is rationality as intelligibility. This is a minimal coherence, say of desires or inferences, that a mind must possess to be a mind. For instance, Donald Davidson, many functionalists, and some decision theorists believe there are principles of rationality of this sort that constrain the appropriate attribution of beliefs and desires to a person, so that a mind must meet such constraints if it is to have beliefs and desires. On another pole, there is rationality as justification. For someone’s psychology to have this property is for that psychology to be as reason requires it to be, say for that person’s inferences and desires to be supported by proper reasons given their proper weight, and hence to be justified. Rationality as justification is a normative property, which it would seem some minds lack. But despite the apparent differences between these two sorts of rationality, some important work in philosophy of mind implies either that these two senses in fact collapse, or at least that there are intervening and significant senses, so that things at least a lot like normative principles constrain what our psychologies are. 
rational reconstruction, also called logical reconstruction, translation of a discourse of a certain conceptual type into a discourse of another conceptual type with the aim of making it possible to say everything or everything important that is expressible in the former more clearly or perspicuously in the latter. The best-known example is one in Carnap’s Der Logische Aufbau der Welt. Carnap attempted to translate discourse concerning physical objects e.g., ‘There is a round brown table’ into discourse concerning immediate objects of sense experience ‘Color patches of such-and-such chromatic characteristics and shape appear in such-and-such a way’. He was motivated by the empiricist doctrine that immediate sense experience is conceptually prior to everything else, including our notion of a physical object. In addition to talk of immediate sense experience, Carnap relied on logic and set theory. Since their use is difficult to reconcile with strict empiricism, his translation would not have fully vindicated empiricism even if it had succeeded. 
Rationality -- reasons for action, considerations that call for or justify action. They may be subjective or objective. A subjective reason is a consideration an agent understands to support a course of action, whether or not it actually does. An objective reason is one that does support a course of action, regardless of whether the agent realizes it. What are cited as reasons may be matters either of fact or of value, but when facts are cited values are also relevant. Thus the fact that cigarette smoke contains nicotine is a reason for not smoking only because nicotine has undesirable effects. The most important evaluative reasons are normative reasons  i.e., considerations having e.g. ethical force. Facts become obligating reasons when, in conjunction with normative considerations, they give rise to an obligation. Thus in view of the obligation to help the needy, the fact that others are hungry is an obligating reason to see they are fed. Reasons for action enter practical thinking as the contents of beliefs, desires, and other mental states. But not all the reasons one has need motivate the corresponding behavior. Thus I may recognize an obligation to pay taxes, yet do so only for fear of punishment. If so, then only my fear is an explaining reason for my action. An overriding reason is one that takes precedence over all others. It is often claimed that moral reasons override all others objectively, and should do so subjectively as well. Finally, one may speak of an all-things-considered reason  one that after due consideration is taken as finally determinative of what shall be done.    reasons for belief, roughly, bases of belief. The word ‘belief’ is commonly used to designate both a particular sort of psychological state, a state of believing, and a particular intentional content or proposition believed. Reasons for belief exhibit an analogous duality. A proposition, p, might be said to provide a normative reason to believe a proposition, q, for instance, when p bears some appropriate warranting relation to q. And p might afford a perfectly good reason to believe q, even though no one, as a matter of fact, believes either p or q. In contrast, p is a reason that I have for believing q, if I believe p and p counts as a reason in the sense above to believe q. Undoubtedly, I have reason to believe countless propositions that I shall never, as it happens, come to believe. Suppose, however, that p is a reason for which I believe q. In that case, I must believe both p and q, and p must be a reason to believe q  or, at any rate, I must regard it as such. It may be that I must, in addition, believe q at least in part because I believe p. Reasons in these senses are inevitably epistemic; they turn on considerations of evidence, truth-conduciveness, and the like. But not all reasons for belief are of this sort. An explanatory reason, a reason why I believe p, may simply be an explanation for my having or coming to have this belief. Perhaps I believe p because I was brainwashed, or struck on the head, or because I have strong non-epistemic motives for this belief. I might, of course, hold the belief on the basis of unexceptionable epistemic grounds. When this is so, my believing p may both warrant and explain my believing q. Reflections of this sort can lead to questions concerning the overall or “all-things-considered” reasonableness of a given belief. Some philosophers e.g., Clifford argue that a belief’s reasonableness depends exclusively on its epistemic standing: my believing p is reasonable for me provided it is epistemically reasonable for me; where belief is concerned, epistemic reasons are overriding. Others, siding with James, have focused on the role of belief in our psychological economy, arguing that the reasonableness of my holding a given belief can be affected by a variety of non-epistemic considerations. Suppose I have some evidence that p is false, but that I stand to benefit in a significant way from coming to believe p. If that is so, and if the practical advantages of my holding p considerably outweigh the practical disadvantages, it might seem obvious that my holding p is reasonable for me in some all-embracing sense. 
Rawls, John b.1,  philosopher widely recognized as one of the leading political philosophers of the twentieth century. His A Theory of Justice 1 is one of the primary texts in political philosophy. Political Liberalism 3 revises Rawls’s theory to make his conception of justice compatible with liberal pluralism, but leaves the core of his conception intact. Drawing on the liberal and democratic social contract traditions of Locke, Rousseau, and Kant, Rawls argues that the most reasonable principles of justice are those everyone would accept and agree to from a fair position. Since these principles determine the justice of society’s political constitution, economy, and property rules its “basic structure”, Rawls takes a fair agreement situation to be one where everyone is impartially situated as equals. In this so-called original position everyone is equally situated by a hypothetical “veil of ignorance.” This veil requires individuals to set aside their knowledge of their particular differences, including knowledge of their talents, wealth, social position, religious and philosophical views, and particular conceptions of value. Rawls argues that in the hypothetical original position everyone would reject utilitarianism, perfectionism, and intuitionist views. Instead they would unanimously accept justice as fairness. This conception of justice consists mainly of two principles. The first principle says that certain liberties are basic and are to be equally provided to all: liberty of conscience, freedom of thought, freedom of association, equal political liberties, freedom and integrity of the person, and the liberties that maintain the rule of law. These are basic liberties, because they are necessary to exercise one’s “moral powers.” The two moral powers are, first, the capacity to be rational, to have a rational conception of one’s good; and second, the capacity for a sense of justice, to understand, apply, and act from requirements of justice. These powers constitute essential interests of free and equal moral persons since they enable each person to be a free and responsible agent taking part in social cooperation. Rawls’s second principle of justice, the difference principle, regulates permissible differences in rights, powers, and privileges. It defines the limits of inequalities in wealth, income, powers, and positions that may exist in a just society. It says, first, that social positions are to be open to all to compete for on terms of fair equality of opportunity. Second, inequalities in wealth, income, and social powers and positions are permissible only if they maximally benefit the least advantaged class in society. The difference principle implies that a just economic system distributes income and wealth so as to make the class of least advantaged persons better off than they would be under any alternative economic system. This principle is to be consistent with the “priority” of the first principle, which requires that equal basic liberties cannot be traded for other benefits. The least advantaged’s right to vote, for example, cannot be limited for the sake of improving their relative economic position. Instead, a basic liberty can be limited only for the sake of maintaining other basic liberties. Rawls contends that, taking the two principles of justice together, a just society maximizes the worth to the least advantaged of the basic liberties shared by all Theory, p. 205. The priority of basic liberty implies a liberal egalitarian society in which each person is ensured adequate resources to effectively exercise her basic liberties and become independent and self-governing. A just society is then governed by a liberal-democratic constitution that protects the basic liberties and provides citizens with equally effective rights to participate in electoral processes and influence legislation. Economically a just society incorporates a modified market system that extensively distributes income and wealth  either a “property-owning democracy” with widespread ownership of means of production, or liberal socialism. 
Ray, J. English naturalist whose work on the structure and habits of plants and animals led to important conclusions on the methodology of classification and gave a strong impetus to the design argument in natural theology. In an early paper he argued that the determining characteristics of a species are those transmitted by seed, since color, scent, size, etc., vary with climate and nutriment. Parallels from the animal kingdom suggested the correct basis for classification would be structural. But we have no knowledge of real essences. Our experience of nature is of a continuum, and for practical purposes kinships are best identified by a plurality of criteria. His mature theory is set out in Dissertatio Brevis 1696 and Methodus Emendata 1703. The Wisdom of God Manifested in the Works of the Creation 1691 and three revisions was a best-selling compendium of Ray’s own scientific learning and was imitated and quarried by many later exponents of the design argument. Philosophically, he relied on others, from Cicero to Cudworth, and was superseded by Paley.
Realism – causal realism -- direct realism, the theory that perceiving is epistemically direct, unmediated by conscious or unconscious inference. Direct realism is distinguished, on the one hand, from indirect, or representative, realism, the view that perceptual awareness of material objects is mediated by an awareness of sensory representations, and, on the other hand, from forms of phenomenalism that identify material objects with states of mind. It might be thought that direct realism is incompatible with causal theories of perception. Such theories invoke causal chains leading from objects perceived causes to perceptual states of perceivers effects. Since effects must be distinct from causes, the relation between an instance of perceiving and an object perceived, it would seem, cannot be direct. This, however, confuses epistemic directness with causal directness. A direct realist need only be committed to the former. In perceiving a tomato to be red, the content of my perceptual awareness is the tomato’s being red. I enter this state as a result of a complex causal process, perhaps. But my perception may be direct in the sense that it is unmediated by an awareness of a representational sensory state from which I am led to an awareness of the tomato. Perceptual error, and more particularly, hallucinations and illusions, are usually thought to pose special difficulties for direct realists. My hallucinating a red tomato, for instance, is not my being directly aware of a red tomato, since I may hallucinate the tomato even when none is present. Perhaps, then, my hallucinating a red tomato is partly a matter of my being directly aware of a round, red sensory representation. And if my awareness in this case is indistinguishable from my perception of an actual red tomato, why not suppose that I am aware of a sensory representation in the veridical case as well? A direct realist may respond by denying that hallucinations are in fact indistinguishable from veridical perceivings or by calling into question the claim that, if sensory representations are required to explain hallucinations, they need be postulated in the veridical case.  reality, in standard philosophical usage, how things actually are, in contrast with their mere appearance. Appearance has to do with how things seem to a particular perceiver or group of perceivers. Reality is sometimes said to be twoway-independent of appearance. This means that appearance does not determine reality. First, no matter how much agreement there is, based on appearance, about the nature of reality, it is always conceivable that reality differs from appearance. Secondly, appearances are in no way required for reality: reality can outstrip the range of all investigations that we are in a position to make. It may be that reality always brings with it the possibility of appearances, in the counterfactual sense that if there were observers suitably situated, then if conditions were not conducive to error, they would have experiences of such-and-such a kind. But the truth of such a counterfactual seems to be grounded in the facts of reality. Phenomenalism holds, to the contrary, that the facts of reality can be explained by such counterfactuals, but phenomenalists have failed to produce adequate non-circular analyses. The concept of reality on which it is two-wayindependent of experience is sometimes called objective reality. However, Descartes used this phrase differently, to effect a contrast with formal or actual reality. He held that there must be at least as much reality in the efficient and total cause of an effect as in the effect itself, and applied this principle as follows: “There must be at least as much actual or formal reality in the efficient and total cause of an idea as objective reality in the idea itself.” The objective reality of an idea seems to have to do with its having representational content, while actual or formal reality has to do with existence independent of the mind. Thus the quoted principle relates features of the cause of an idea to the representational content of the idea. Descartes’s main intended applications were to God and material objects. 
recursive function theory, a relatively recent area of mathematics that takes as its point of departure the study of an extremely limited class of arithmetic functions called the recursive functions. Strictly speaking, recursive function theory is a branch of higher arithmetic number theory, or the theory of natural numbers whose universe of discourse is restricted to the nonnegative integers: 0, 1, 2, etc. However, the techniques and results of the newer area do not resemble those traditionally associated with number theory. The class of recursive functions is defined in a way that makes evident that every recursive function can be computed or calculated. The hypothesis that every calculable function is recursive, which is known as Church’s thesis, is often taken as a kind of axiom in recursive function theory. This theory has played an important role in modern philosophy of mathematics, especially when epistemological issues are studied. 
redintegration, a psychological process, similar to or involving classical conditioning, in which one feature of a situation causes a person to recall, visualize, or recompose an entire original situation. On opening a pack of cigarettes, a person may visualize the entire process, including striking the match, lighting the cigarette, and puffing. Redintegration is used as a technique in behavior therapy, e.g. when someone trying to refrain from smoking is exposed to unpleasant odors and vivid pictures of lungs caked with cancer, and then permitted to smoke. If the unpleasantness of the odors and visualization outweighs the reinforcement of smoking, the person may resist smoking. Philosophically, redintegration is of interest for two reasons. First, the process may be critical in prudence. By bringing long-range consequences of behavior into focus in present deliberation, redintegration may help to protect long-range interests. Second, redintegration offers a role for visual images in producing behavior. Images figure in paradigmatic cases of redintegration. In recollecting pictures of cancerous lungs, the person may refrain from smoking. 

reductionism: The issue of reductionism is very much twentieth-century. There was Wisdom’s boring contribtions to Mind on ‘logical construction,’ Grice read the summary from Broad. One of the twelve –isms that Grice finds on his ascent to the City of Eternal Truth. He makes the reductive-reductionist distinction. Against J. M. Rountree. So, for Grice, the bad heathen vicious Reductionism can be defeated by the good Christian virtuous Reductivism. A reductivist tries to define, say, what an emissor communicates (that p) in terms of the content of that proposition that he intends to transmit to his recipient. Following Aristotle, Grice reduces the effect to a ‘pathemata psucheos,’ i. e. a passio of the anima, as Boethius translates. This can be desiderative (“Thou shalt not kill”) or creditativa (“The grass is green.”)

reductio ad absurdum. 1 The principles A / - A / -A and -A / A / A. 2 The argument forms ‘If A then B and not-B; therefore, not-A’ and ‘If not-A then B and not-B; therefore, A’ and arguments of these forms. Reasoning via such arguments is known as the method of indirect proof. 3 The rules of inference that permit i inferring not-A having derived a contradiction from A and ii inferring A having derived a contradiction from not-A. Both rules hold in classical logic and come to the same thing in any logic with the law of double negation. In intuitionist logic, however, i holds but ii does not. 
reduction, the replacement of one expression by a second expression that differs from the first in prima facie reference. So-called reductions have been meant in the sense of uniformly applicable explicit definitions, contextual definitions, or replacements suitable only in a limited range of contexts. Thus, authors have spoken of reductive conceptual analyses, especially in the early days of analytic philosophy. In particular, in the sensedatum theory talk of physical objects was supposed to be reduced to talk of sense-data by explicit definitions or other forms of conceptual analysis. Logical positivists talked of the reduction of theoretical vocabulary to an observational vocabulary, first by explicit definitions, and later by other devices, such as Carnap’s reduction sentences. These appealed to a test condition predicate, T e.g., ‘is placed in water’, and a display predicate, D e.g., ‘dissolves’, to introduce a dispositional or other “non-observational” term, S e.g., ‘is water-soluble’: Ex [Tx / Dx / Sx], with ‘/’ representing the material conditional. Negative reduction sentences for non-occurrence of S took the form Ex [NTx / NDx / - Sx]. For coinciding predicate pairs T and TD and -D and ND Carnap referred to bilateral reduction sentences: Ex [Tx / Dx S Sx]. Like so many other attempted reductions, reduction sentences did not achieve replacement of the “reduced” term, S, since they do not fix application of S when the test condition, T, fails to apply. In the philosophy of mathematics, logicism claimed that all of mathematics could be reduced to logic, i.e., all mathematical terms could be defined with the vocabulary of logic and all theorems of mathematics could be derived from the laws of logic supplemented by these definitions. Russell’s Principia Mathematica carried out much of such a program with a reductive base of something much more like what we now call set theory rather than logic, strictly conceived. Many now accept the reducibility of mathematics to set theory, but only in a sense in which reductions are not unique. For example, the natural numbers can equally well be modeled as classes of equinumerous sets or as von Neumann ordinals. This non-uniqueness creates serious difficulties, with suggestions that set-theoretic reductions can throw light on what numbers and other mathematical objects “really are.” In contrast, we take scientific theories to tell us, unequivocally, that water is H20 and that temperature is mean translational kinetic energy. Accounts of theory reduction in science attempt to analyze the circumstance in which a “reducing theory” appears to tell us the composition of objects or properties described by a “reduced theory.” The simplest accounts follow the general pattern of reduction: one provides “identity statements” or “bridge laws,” with at least the form of explicit definitions, for all terms in the reduced theory not already appearing in the reducing theory; and then one argues that the reduced theory can be deduced from the reducing theory augmented by the definitions. For example, the laws of thermodynamics are said to be deducible from those of statistical mechanics, together with statements such as ‘temperature is mean translational kinetic energy’ and ‘pressure is mean momentum transfer’. How should the identity statements or bridge laws be understood? It takes empirical investigation to confirm statements such as that temperature is mean translational kinetic energy. Consequently, some have argued, such statements at best constitute contingent correlations rather than strict identities. On the other hand, if the relevant terms and their extensions are not mediated by analytic definitions, the identity statements may be analogized to identities involving two names, such as ‘Cicero is Tully’, where it takes empirical investigation to establish that the two names happen to have the same referent. One can generalize the idea of theory reduction in a variety of ways. One may require the bridge laws to suffice for the deduction of the reduced from the reducing theory without requiring that the bridge laws take the form of explicit identity statements or biconditional correlations. Some authors have also focused on the fact that in practice a reducing theory T2 corrects or refines the reduced theory T1, so that it is really only a correction or refinement, T1*, that is deducible from T2 and the bridge laws. Some have consequently applied the term ‘reduction’ to any pair of theories where the second corrects and extends the first in ways that explain both why the first theory was as accurate as it was and why it made the errors that it did. In this extended sense, relativity is said to reduce Newtonian mechanics. Do the social sciences, especially psychology, in principle reduce to physics? This prospect would support the so-called identity theory of mind and body, in particular resolving important problems in the philosophy of mind, such as the mindbody problem and the problem of other minds. Many though by no means all are now skeptical about the prospects for identifying mental properties, and the properties of other special sciences, with complex physical properties. To illustrate with an example from economics adapted from Fodor, in the right circumstances just about any physical object could count as a piece of money. Thus prospects seem dim for finding a closed and finite statement of the form ‘being a piece of money is . . .’, with only predicates from physics appearing on the right though some would want to admit infinite definitions in providing reductions. Similarly, one suspects that attributes, such as pain, are at best functional properties with indefinitely many possible physical realizations. Believing that reductions by finitely stable definitions are thus out of reach, many authors have tried to express the view that mental properties are still somehow physical by saying that they nonetheless supervene on the physical properties of the organisms that have them. In fact, these same difficulties that affect mental properties affect the paradigm case of temperature, and probably all putative examples of theoretical reduction. Temperature is mean translational temperature only in gases, and only idealized ones at that. In other substances, quite different physical mechanisms realize temperature. Temperature is more accurately described as a functional property, having to do with the mechanism of heat transfer between bodies, where, in principle, the required mechanism could be physically realized in indefinitely many ways. In most and quite possibly all cases of putative theory reduction by strict identities, we have instead a relation of physical realization, constitution, or instantiation, nicely illustrated by the property of being a calculator example taken from Cummins. The property of being a calculator can be physically realized by an abacus, by devices with gears and levers, by ones with vacuum tubes or silicon chips, and, in the right circumstances, by indefinitely many other physical arrangements. Perhaps many who have used ‘reduction’, particularly in the sciences, have intended the term in this sense of physical realization rather than one of strict identity. Let us restrict attention to properties that reduce in the sense of having a physical realization, as in the cases of being a calculator, having a certain temperature, and being a piece of money. Whether or not an object counts as having properties such as these will depend, not only on the physical properties of that object, but on various circumstances of the context. Intensions of relevant language users constitute a plausible candidate for relevant circumstances. In at least many cases, dependence on context arises because the property constitutes a functional property, where the relevant functional system calculational practices, heat transfer, monetary systems are much larger than the propertybearing object in question. These examples raise the question of whether many and perhaps all mental properties depend ineliminably on relations to things outside the organisms that have the mental properties. 
reduction sentence, for a given predicate Q3 of space-time points in a first-order language, any universal sentence S1 of the form: x [Q1x / Q2x / Q3 x], provided that the predicates Q1 and Q2 are consistently applicable to the same space-time points. If S1 has the form given above and S2 is of the form x [Q4x / Q5 / - Q6] and either S1 is a reduction sentence for Q3 or S2 is a reduction sentence for -Q3, the pair {S1, S2} is a reduction pair for Q3. If Q1 % Q4 and Q2 % - Q5, the conjunction of S1 and S2 is equivalent to a bilateral reduction sentence for Q3 of the form x [Q1 / Q3 S Q2]. These concepts were introduced by Carnap in “Testability and Meaning,” Philosophy of Science 637, to modify the verifiability criterion of meaning to a confirmability condition where terms can be introduced into meaningful scientific discourse by chains of reduction pairs rather than by definitions. The incentive for this modification seems to have been to accommodate the use of disposition predicates in scientific discourse. Carnap proposed explicating a disposition predicate Q3 by bilateral reduction sentences for Q3. An important but controversial feature of Carnap’s approach is that it avoids appeal to nonextensional conditionals in explicating disposition predicates. 

RELATUM -- referentially transparent. An occurrence of a singular term t in a sentence ‘. . . t . . .’ is referentially transparent or purely referential if and only if the truth-value of ‘. . . t . . .’ depends on whether the referent of t satisfies the open sentence ‘. . . x . . .’; the satisfaction of ‘. . . x . . .’ by the referent of t would guarantee the truth of ‘. . . t . . .’, and failure of this individual to satisfy ‘. . . x . . .’ would guarantee that ‘. . . t . . .’ was not true. ‘Boston is a city’ is true if and only if the referent of ‘Boston’ satisfies the open sentence ‘x is a city’, so the occurrence of ‘Boston’ is referentially transparent. But in ‘The expression “Boston” has six letters’, the length of the word within the quotes, not the features of the city Boston, determines the truth-value of the sentence, so the occurrence is not referentially transparent. According to a Fregean theory of meaning, the reference of any complex expression that is a meaningful unit is a function of the referents of its parts. Within this context, an occurrence of a referential term t in a meaningful expression ‘. . . t . . .’ is referentially transparent or purely referential if and only if t contributes its referent to the reference of ‘. . . t . . .’. The expression ‘the area around Boston’ refers to the particular area it does because of the referent of ‘Boston’ and the reference or extension of the function expressed by ‘the area around x’. An occurrence of a referential term t in a meaningful expression ‘. . . t . . .’ is referentially opaque if and only if it is not referentially transparent. Thus, if t has a referentially opaque occurrence in a sentence ‘. . . t . . .’, then the truth-value of ‘. . . t . . .’ depends on something reduction, phenomenological referentially transparent 780    780 other than whether the referent of t satisfies ‘. . . x . . .’. Although these definitions apply to occurrences of referential terms, the terms ‘referentially opaque’ and ‘referentially transparent’ are used primarily to classify linguistic contexts for terms as referentially opaque contexts. If t occurs purely referentially in S but not in CS, then C   is a referentially opaque context. But we must qualify this: C  is a referentially opaque context for that occurrence of t in S. It would not follow without further argument that C  is a referentially opaque context for other occurrences of terms in sentences that could be placed into C . Contexts of quotation, propositional attitude, and modality have been widely noted for their potential to produce referential opacity. Consider: 1 John believes that the number of planets is less than eight. 2 John believes that nine is less than eight. If 1 is true but 2 is not, then either ‘the number of planets’ or ‘nine’ has an occurrence that is not purely referential, because the sentences would differ in truth-value even though the expressions are co-referential. But within the sentences: 3 The number of planets is less than eight. 4 Nine is less than eight. the expressions appear to have purely referential occurrence. In 3 and 4, the truth-value of the sentence as a whole depends on whether the referent of ‘The number of planets’ and ‘Nine’ satisfies ‘x is less than eight’. Because the occurrences in 3 and 4 are purely referential but those in 1 and 2 are not, the context ‘John believes that  ’ is a referentially opaque context for the relevant occurrence of at least one of the two singular terms. Some argue that the occurrence of ‘nine’ in 2 is purely referential because the truth-value of the sentence as a whole depends on whether the referent, nine, satisfies the open sentence ‘John believes that x is less than eight’. Saying so requires that we make sense of the concept of satisfaction for such sentences belief sentences and others and that we show that the concept of satisfaction applies in this way in the case at hand sentence 2. There is controversy about whether these things can be done. In 1, on the other hand, the truth-value is not determined by whether nine the referent of ‘the number of planets’ satisfies the open sentence, so that occurrence is not purely referential. Modal contexts raise similar questions. 5 Necessarily, nine is odd. 6 Necessarily, the number of planets is odd. If 5 is true but 6 is not, then at least one of the expressions does not have a purely referential occurrence, even though both appear to be purely referential in the non-modal sentence that appears in the context ‘Necessarily, ———’. Thus the context is referentially opaque for the occurrence of at least one of these terms. On an alternative approach, genuinely singular terms always occur referentially, and ‘the number of planets’ is not a genuinely singular term. Russell’s theory of definite descriptions, e.g., provides an alternative semantic analysis for sentences involving definite descriptions. This would enable us to say that even simple sentences like 3 and 4 differ considerably in syntactic and semantic structure, so that the similarity that suggests the problem, the seemingly similar occurrences of co-referential terms, is merely apparent. 
Mise-en-abyme-- reflection principles, two varieties of internal statements related to correctness in formal axiomatic systems. 1 Proof-theoretic reflection principles are formulated for effectively presented systems S that contain a modicum of elementary number theory sufficient to arithmetize their own syntactic notions, as done by Kurt Gödel in his 1 work on incompleteness. Let ProvS x express that x is the Gödel number of a statement provable in S, and let nA be the number of A, for any statement A of S. The weakest reflection principle considered for S is the collection RfnS of all statements of the form ProvS nA P A, which express that if A is provable from S then A is true. The proposition ConS expressing the consistency of S is a consequence of RfnS obtained by taking A to be a disprovable statement. Thus, by Gödel’s second incompleteness theorem, RfnS is stronger than S if S is consistent. Reflection principles are used in the construction of ordinal logics as a systematic means of overcoming incompleteness. 2 Set-theoretic reflection principles are formulated for systems S of axiomatic set theory, such as ZF Zermelo-Fraenkel. In the simplest form they express that any property A in the language of S that holds of the universe of “all” sets, already holds of a portion of that universe coextensive with some set x. This takes the form A P DxAx where in Ax all quantifiers of A are relativized to x. In contrast to proof-theoretic reflection principles, these may be established as theorems of ZF. 
reflective equilibrium, as usually conceived, a coherence method for justifying evaluative principles and theories. The method was first described by Goodman, who proposed it be used to justify deductive and inductive principles. According to Goodman Fact, Fiction and Forecast, 5, a particular deductive inference is justified by its conforming with deductive principles, but these principles are justified in their turn by conforming with accepted deductive practice. The idea, then, is that justified inferences and principles are those that emerge from a process of mutual adjustment, with principles being revised when they sanction inferences we cannot bring ourselves to accept, and particular inferences being rejected when they conflict with rules we are unwilling to revise. Thus, neither principles nor particular inferences are epistemically privileged. At least in principle, everything is liable to revision. Rawls further articulated the method of reflective equilibrium and applied it in ethics. According to Rawls A Theory of Justice, 1, inquiry begins with considered moral judgments, i.e., judgments about which we are confident and which are free from common sources of error, e.g., ignorance of facts, insufficient reflection, or emotional agitation. According to narrow reflective equilibrium, ethical principles are justified by bringing them into coherence with our considered moral judgments through a process of mutual adjustment. Rawls, however, pursues a wide reflective equilibrium. Wide equilibrium is attained by proceeding to consider alternatives to the moral conception accepted in narrow equilibrium, along with philosophical arguments that might decide among these conceptions. The principles and considered judgments accepted in narrow equilibrium are then adjusted as seems appropriate. One way to conceive of wide reflective equilibrium is as an effort to construct a coherent system of belief by a process of mutual adjustment to considered moral judgments and moral principles as in narrow equilibrium along with the background philosophical, social scientific, and any other relevant beliefs that might figure in the arguments for and against alternative moral conceptions, e.g., metaphysical views regarding the nature of persons. As in Goodman’s original proposal, none of the judgments, principles, or theories involved is privileged: all are open to revision. 


Griceian renaissance – after J. L. Austin’s death -- Erasmus, D., philosopher who played an important role in Renaissance humanism. Like his  forerunners Petrarch, Coluccio Salutati, Lorenzo Valla, Leonardo Bruni, and others, Erasmus stressed within philosophy and theology the function of philological precision, grammatical correctness, and rhetorical elegance. But for Erasmus the virtues of bonae literarae which are cultivated by the study of authors of Latin and Grecian antiquity must be decisively linked with Christian spirituality. Erasmus has been called by Huizinga the first modern intellectual because he tried to influence and reform the mentality of society by working within the shadow of ecclesiastical and political leaders. He epistemology, evolutionary Erasmus, Desiderius 278   278 became one of the first humanists to make efficient use of the then new medium of printing. His writings embrace various forms, including diatribe, oration, locution, comment, dialogue, and letter. After studying in Christian schools and living for a time in the monastery of Steyn near Gouda in the Netherlands, Erasmus worked for different patrons. He gained a post as secretary to the bishop of Kamerijk, during which time he wrote his first published book, the Adagia first edition 1500, a collection of annotated Latin adages. Erasmus was an adviser to the Emperor Charles V, to whom he dedicated his Institutio principii christiani 1516. After studies at the  of Paris, where he attended lectures by the humanist Faber Stapulensis, Erasmus was put in touch by his patron Lord Mountjoy with the British humanists John Colet and Thomas More. Erasmus led a restless life, residing in several European cities including London, Louvain, Basel, Freiburg, Bologna, Turin where he was awarded a doctorate of theology in 1506, and Rome. By using the means of modern philology, which led to the ideal of the bonae literarae, Erasmus tried to reform the Christian-influenced mentality of his times. Inspired by Valla’s Annotationes to the New Testament, he completed a new Latin translation of the New Testament, edited the writings of the early church fathers, especially St. Hieronymus, and wrote several commentaries on psalms. He tried to regenerate the spirit of early Christianity by laying bare its original sense against the background of scholastic interpretation. In his view, the rituals of the existing church blocked the development of an authentic Christian spirituality. Though Erasmus shared with Luther a critical approach toward the existing church, he did not side with the Reformation. His Diatribe de libero arbitrio 1524, in which he pleaded for the free will of man, was answered by Luther’s De servo arbitrio. The historically most influential books of Erasmus were Enchirion militis christiani 1503, in which he attacked hirelings and soldiers; the Encomium moriae id est Laus stultitiae 1511, a satire on modern life and the ecclesiastical pillars of society; and the sketches of human life, the Colloquia first published in 1518, often enlarged until 1553. In the small book Querela pacis 1517, he rejected the ideology of justified wars propounded by Augustine and Aquinas. Against the madness of war Erasmus appealed to the virtues of tolerance, friendliness, and gentleness. All these virtues were for him the essence of Christianity. 
regression analysis, a part of statistical theory concerned with the analysis of data with the aim of inferring a linear functional relationship between assumed independent “regressor” variables and a dependent “response” variable. A typical example involves the dependence of crop yield on the application of fertilizer. For the most part, higher amounts of fertilizer are associated with higher yields. But typically, if crop yield is plotted vertically on a graph with the horizontal axis representing amount of fertilizer applied, the resulting points will not fall in a straight line. This can be due either to random “stochastic” fluctuations involving measurement errors, irreproducible conditions, or physical indeterminism or to failure to take into account other relevant independent variables such as amount of rainfall. In any case, from any resulting “scatter diagram,” it is possible mathematically to infer a “best-fitting” line. One method is, roughly, to find the line that minimizes the average absolute distance between a line and the data points collected. More commonly, the average of the squares of these distances is minimized this is the “least squares” method. If more than one independent variable is suspected, the theory of multiple regression, which takes into account multiple regressors, can be applied: this can help to minimize an “error term” involved in regression. Computers must be used for the complex computations typically encountered. Care must be taken in connection with the possibility that a lawlike, causal dependence is not really linear even approximately over all ranges of the regressor variables e.g., in certain ranges of amounts of application, more fertilizer is good for a plant, but too much is bad. 
Reichenbach, Hans 13, G. philosopher of science and a major leader of the movement known as logical empiricism. Born in Hamburg, he studied engineering for a brief time, then turned to mathematics, philosophy, and physics, which he pursued at the universities of Berlin, Munich, and Göttingen. He took his doctorate in philosophy at Erlangen 5 with a dissertation on mathematical and philosophical aspects of probability, and a degree in mathematics and physics by state examination at Göttingen 6. In 3, with Hitler’s rise to power, he fled to Istanbul, then to the  of California at Los Angeles, where he remained until his death. Prior to his departure from G.y he was professor of philosophy of science at the  of Berlin, leader of the Berlin Group of logical empiricists, and a close associate of Einstein. With Carnap he founded Erkenntnis, the major journal of scientific philosophy before World War II. After a short period early in his career as a follower of Kant, Reichenbach rejected the synthetic a priori, chiefly because of considerations arising out of Einstein’s general theory of relativity. He remained thereafter champion of empiricism, adhering to a probabilistic version of the verifiability theory of cognitive meaning. Never, however, did he embrace the logical positivism of the Vienna Circle; indeed, he explicitly described his principal epistemological work, Experience and Prediction 8, as his refutation of logical positivism. In particular, his logical empiricism consisted in rejecting phenomenalism in favor of physicalism; he rejected phenomenalism both in embracing scientific realism and in insisting on a thoroughgoing probabilistic analysis of scientific meaning and scientific knowledge. His main works span a wide range. In Probability and Induction he advocated the frequency interpretation of probability and offered a pragmatic justification of induction. In his philosophy of space and time he defended conventionality of geometry and of simultaneity. In foundations of quantum mechanics he adopted a three-valued logic to deal with causal anomalies. He wrote major works on epistemology, logic, laws of nature, counterfactuals, and modalities. At the time of his death he had almost completed The Direction of Time, which was published posthumously 6. 
Reid, Thomas 171096, Scottish philosopher, a defender of common sense and critic of the theory of impressions and ideas articulated by Hume. Reid was born exactly one year before Hume, in Strachan, Scotland. A bright lad, he went to Marischal  in Aberdeen at the age of twelve, studying there with Thomas Blackwell and George Turnbull. The latter apparently had great influence on Reid. Turnbull contended that knowledge of the facts of sense and introspection may not be overturned by reasoning and that volition is the only active power known from experience. Turnbull defended common sense under the cloak of Berkeley. Reid threw off that cloak with considerable panache, but he took over the defense of common sense from Turnbull. Reid moved to a position of regent and lecturer at King’s  in Aberdeen in 1751. There he formed, with John Gregory, the Aberdeen Philosophical Society, which met fortnightly, often to discuss Hume. Reid published his Inquiry into the Human Mind on the Principles of Common Sense in 1764, and, in the same year, succeeded Adam Smith in the chair of moral philosophy at Old  in Glasgow. After 1780 he no longer lectured but devoted himself to his later works, Essays on the Intellectual Powers 1785 and Essays on the Active Powers 1788. He was highly influential in Scotland and on the Continent in the eighteenth century and, from time to time, in England and the United States thereafter. Reid thought that one of his major contributions was the refutation of Hume’s theory of impressions and ideas. Reid probably was convinced in his teens of the truth of Berkeley’s doctrine that what the mind is immediately aware of is always some idea, but his later study of Hume’s Treatise convinced him that, contrary to Berkeley, it was impossible to reconcile this doctrine, the theory of ideas, with common sense. Hume had rigorously developed the theory, Reid said, and drew forth the conclusions. These, Reid averred, were absurd. They included the denial of our knowledge of body and mind, and, even more strikingly, of our conceptions of these things. The reason Reid thought that Hume’s theory of ideas led to these conclusions was that for Hume, ideas were faded impressions of sense, hence, sensations. No sensation is like a quality of a material thing, let alone like the object that has the quality. Consider movement. Movement is a quality of an object wherein the object changes from one place to another, but the visual sensation that arises in us is not the change of place of an object, it is an activity of mind. No two things could, in fact, be more unalike. If what is before the mind is always some sensation, whether vivacious or faded, we should never obtain the conception of something other than a sensation. Hence, we could never even conceive of material objects and their qualities. Even worse, we could not conceive of our own minds, for they are not sensations either, and only sensations are immediately before the mind, according to the theory of ideas. Finally, and even more absurdly, we could not conceive of past sensations or anything that does not now exist. For all that is immediately before the mind is sensations that exist presently. Thus, we could not even conceive of qualities, bodies, minds, and things that do not now exist. But this is absurd, since it is obvious that we do think of all these things and even of things that have never existed. The solution, Reid suggested, is to abandon the theory of ideas and seek a better one. Many have thought Reid was unfair to Hume and misinterpreted him. Reid’s Inquiry was presented to Hume by Dr. Blair in manuscript form, however, and in reply Hume does not at all suggest that he has been misinterpreted or handled unfairly. Whatever the merits of Reid’s criticism of Hume, it was the study of the consequences of Hume’s philosophy that accounts for Reid’s central doctrine of the human faculties and their first principles. Faculties are innate powers, among them the powers of conception and conviction. Reid’s strategy in reply to Hume is to build a nativist theory of conception on the failure of Hume’s theory of ideas. Where the theory of ideas, the doctrine of impressions and ideas, fails to account for our conception of something, of qualities, bodies, minds, past things, nonexistent things, Reid hypothesizes that our conceptions originate from a faculty of the mind, i.e., from an innate power of conception. This line of argument reflects Reid’s respect for Hume, whom he calls the greatest metaphysician of the age, because Hume drew forth the consequences of a theory of conception, which we might call associationism, according to which all our conceptions result from associating sensations. Where the associationism of Hume failed, Reid hypothesized that conceptions arise from innate powers of conception that manifest themselves in accordance with original first principles of the mind. The resulting hypotheses were not treated as a priori necessities but as empirical hypotheses. Reid notes, therefore, that there are marks by which we can discern the operation of an innate first principle, which include the early appearance of the operation, its universality in mankind, and its irresistibility. The operations of the mind that yield our conceptions of qualities, bodies, and minds all bear these marks, Reid contends, and that warrants the conclusion that they manifest first principles. It should be noted that Reid conjectured that nature would be frugal in the implantation of innate powers, supplying us with no more than necessary to produce the conceptions we manifest. Reid is, consequently, a parsimonious empiricist in the development of his nativist psychology. Reid developed his theory of perception in great detail and his development led, surprisingly, to his articulation of non-Euclidean geometry. Indeed, while Kant was erroneously postulating the a priori necessity of Euclidean space, Reid was developing non-Euclidean geometry to account for the empirical features of visual space. Reid’s theory of perception is an example of his empiricism. In the Inquiry, he says that sensations, which are operations of the mind, and impressions on the organs of sense, which are material, produce our conceptions of primary and secondary qualities. Sensations produce our original conceptions of secondary qualities as the causes of those sensations. They are signs that suggest the existence of the qualities. A sensation of smell suggests the existence of a quality in the object that causes the sensation, though the character of the cause is otherwise unknown. Thus, our original conception of secondary qualities is a relative conception of some unknown cause of a sensation. Our conception of primary qualities differs not, as Locke suggested, because of some resemblance between the sensation and the quality for, as Berkeley noted, there is no resemblance between a sensation and quality, but because our original conceptions of primary qualities are clear and distinct. The sensation is a sign that suggests a definite conception of the primary quality, e.g. a definite conception of the movement of the object, rather than a mere conception of something, we know not what, that gives rise to the sensation. These conceptions of qualities signified by sensations result from the operations of principles of our natural constitution. These signs, which suggest the conception of qualities, also suggest a conception of some object that has them. This conception of the object is also relative, in that it is simply a conception of a subject of the qualities. In the case of physical qualities, the conception of the object is a conception of a material object. Though sensations, which are activities of the mind, suggest the existence of qualities, they are not the only signs of sense perception. Some impressions on the organs of sense, the latter being material, also give rise to conceptions of qualities, especially to our conception of visual figure, the seen shape of the object. But Reid can discern no sensation of shape. There are, of course, sensations of color, but he is convinced from the experience of those who have cataracts and see color but not shape that the sensations of color are insufficient to suggest our conceptions of visual figure. His detailed account of vision and especially of the seeing of visual figure leads him to one of his most brilliant moments. He asks what sort of data do we receive upon the eye and answers that the data must be received at the round surface of the eyeball and processed within. Thus, visual space is a projection in three dimensions of the information received on the round surface of the eye, and the geometry of this space is a non-Euclidean geometry of curved space. Reid goes on to derive the properties of the space quite correctly, e.g., in concluding that the angles of a triangle will sum to a figure greater than 180 degrees and thereby violate the parallels postulate. Thus Reid discovered that a non-Euclidean geometry was satisfiable and, indeed, insisted that it accurately described the space of vision not, however, the space of touch, which he thought was Euclidean. From the standpoint of his theory of perceptual signs, the example of visual figure helps to clarify his doctrine of the signs of perception. We do not perceive signs and infer what they signify. This inference, Reid was convinced by Hume, would lack the support of reasoning, and Reid concluded that reasoning was, in this case, superfluous. The information received on the surface of the eye produces our conceptions of visual figure immediately. Indeed, these signs pass unnoticed as they give rise to the conception of visual figure in the mind. The relation of sensory signs to the external things they signify originally is effected by a first principle of the mind without the use of reason. The first principles that yield our conceptions of qualities and objects yield convictions of the existence of these things at the same time. A question naturally arises as to the evidence of these convictions. First principles yield the convictions along with the conceptions, but do we have evidence of the existence of the qualities and objects we are convinced exist? We have the evidence of our senses, of our natural faculties, and that is all the evidence possible here. Reid’s point is that the convictions in questions resulting from the original principles of our faculties are immediately justified. Our faculties are, however, all fallible, so the justification that our original convictions possess may be refuted. We can now better understand Reid’s reply to Hume. To account for our convictions of the existence of body, we must abandon Hume’s theory of ideas, which cannot supply even the conception of body. We must discover both the original first principles that yield the conception and conviction of objects and their qualities, and first principles to account for our convictions of the past, of other thinking beings, and of morals. Just as there are first principles of perception that yield convictions of the existence of presently existing objects, so there are first principles of memory that yield the convictions of the existence of past things, principles of testimony that yield the convictions of the thoughts of others, and principles of morals that yield convictions of our obligations. Reid’s defense of a moral faculty alongside the faculties of perception and memory is striking. The moral faculty yields conceptions of the justice and injustice of an action in response to our conception of that action. Reid shrewdly notes that different people may conceive of the same action in different ways. I may conceive of giving some money as an action of gratitude, while you may consider it squandering money. How we conceive of an action depends on our moral education, but the response of our moral faculty to an action conceived in a specific way is original and the same in all who have the faculty. Hence differences in moral judgment are due, not to principles of the moral faculty, but to differences in how we conceive of our actions. This doctrine of a moral faculty again provides a counterpoint to the moral philosophy of Hume, for, according Reid, Thomas Reid, Thomas 785    785 to Reid, judgments of justice and injustice pertaining to all matters, including promises, contracts, and property, arise from our natural faculties and do not depend on anything artificial. Reid’s strategy for defending common sense is clear enough. He thinks that Hume showed that we cannot arrive at our convictions of external objects, of past events, of the thoughts of others, of morals, or, for that matter, of our own minds, from reasoning about impressions and ideas. Since those convictions are a fact, philosophy must account for them in the only way that remains, by the hypothesis of innate faculties that yield them. But do we have any evidence for these convictions? Evidence, Reid says, is the ground of belief, and our evidence is that of our faculties. Might our faculties deceive us? Reid answers that it is a first principle of our faculties that they are not fallacious. Why should we assume that our faculties are not fallacious? First, the belief is irresistible. However we wage war with first principles, the principles of common sense, they prevail in daily life. There we trust our faculties whether we choose to or not. Second, all philosophy depends on the assumption that our faculties are not fallacious. Here Reid employs an ad hominem argument against Hume, but one with philosophical force. Reid says that, in response to a total skeptic who decides to trust none of his faculties, he puts his hand over his mouth in silence. But Hume trusted reason and consciousness, and therefore is guilty of pragmatic inconsistency in calling the other faculties into doubt. They come from the same shop, Reid says, and he who calls one into doubt has no right to trust the others. All our faculties are fallible, and, therefore, we must, to avoid arbitrary favoritism, trust them all at the outset or trust none. The first principles of our faculties are trustworthy. They not only account for our convictions, but are the ground and evidence of those convictions. This nativism is the original engine of justification. Reid’s theory of original perceptions is supplemented by a theory of acquired perceptions, those which incorporate the effects of habit and association, such as the perception of a passing coach. He distinguishes acquired perceptions from effects of reasoning. The most important way our original perceptions must be supplemented is by general conceptions. These result from a process whereby our attention is directed to some individual quality, e.g., the whiteness of a piece of paper, which he calls abstraction, and a further process of generalizing from the individual quality to the general conception of the universal whiteness shared by many individuals. Reid is a sophisticated nominalist; he says that the only things that exist are individual, but he includes individual qualities as well as individual objects. The reason is that individual qualities obviously exist and are needed as the basis of generalization. To generalize from an individual we must have some conception of what it is like, and this conception cannot be general, on pain of circularity or regress, but must be a conception of an individual quality, e.g., the whiteness of this paper, which it uniquely possesses. Universals, though predicated of objects to articulate our knowledge, do not exist. We can think of universals, just as we can think of centaurs, but though they are the objects of thought and predicated of individuals that exist, they do not themselves exist. Generalization is not driven by ontology but by utility. It is we and not nature that sort things into kinds in ways that are useful to us. This leads to a division-of-labor theory of meaning because general conceptions are the meanings of general words. Thus, in those domains in which there are experts, in science or the law, we defer to the experts concerning the general conceptions that are the most useful in the area in question. Reid’s theory of the intellectual powers, summarized briefly above, is supplemented by his theory of our active powers, those that lead to actions. His theory of the active powers includes a theory of the principles of actions. These include animal principles that operate without understanding, but the most salient and philosophically important part of Reid’s theory of the active powers is his theory of the rational principles of action, which involve understanding and the will. These rational principles are those in which we have a conception of the action to be performed and will its performance. Action thus involves an act of will or volition, but volitions as Reid conceived of them are not the esoteric inventions of philosophy but, instead, the commonplace activities of deciding and resolving to act. Reid is a libertarian and maintains that our liberty or freedom refutes the principle of necessity or determinism. Freedom requires the power to will the action and also the power not to will it. The principle of necessity tells us that our action was necessitated and, therefore, that it was not in our power not to have willed as we did. It is not sufficient for freedom, as Hume suggested, that we act as we will. We must also have the Reid, Thomas Reid, Thomas 786    786 power to determine what we will. The reason is that willing is the means to the end of action, and he who lacks power over the means lacks power over the end. This doctrine of the active power over the determinations of our will is founded on the central principle of Reid’s theory of the active powers, the principle of agent causation. The doctrine of acts of the will or volitions does not lead to a regress, as critics allege, because my act of will is an exercise of the most basic kind of causality, the efficient causality of an agent. I am the efficient cause of my acts of will. My act of will need not be caused by an antecedent act of will because my act of will is the result of my exercise of my causal power. This fact also refutes an objection to the doctrine of liberty  that if my action is not necessitated, then it is fortuitous. My free actions are caused, not fortuitous, though they are not necessitated, because they are caused by me. How, one might inquire, do we know that we are free? The doubt that we are free is like other skeptical doubts, and receives a similar reply, namely, that the conviction of our freedom is a natural and original conviction arising from our faculties. It occurs prior to instruction and it is irresistible in practical life. Any person with two identical coins usable to pay for some item must be convinced that she can pay with the one or the other; and, unlike the ass of Buridan, she readily exercises her power to will the one or the other. The conviction of freedom is an original one, not the invention of philosophy, and it arises from the first principles of our natural faculties, which are trustworthy and not fallacious. The first principles of our faculties hang together like links in a chain, and one must either raise up the whole or the links prove useless. Together, they are the foundation of true philosophy, science, and practical life, and without them we shall lead ourselves into the coalpit of skepticism and despair. 
Reimarus, Hermann Samuel 16941768, G. philosopher, born in Hamburg and educated in philosophy and theology at Jena. For most of his life he taught Oriental languages at a high school in Hamburg. The most important writings he published were a treatise on natural religion, Abhandlungen von den vornehmsten Wahrheiten der natürlichen Religion 1754; a textbook on logic, Vernunftlehre 1756; and an interesting work on instincts in animals, Allgemeine Betrachtungen über die Triebe der Tiere 1760. However, he is today best known for his Apologie oder Schutzschrift für die vernünftigen Verehrer Gottes “Apology for or Defense of the Rational Worshipers of God”, posthumously published in 177477. In it, Reimarus reversed his stance on natural theology and openly advocated a deism in the British tradition. The controversy created by its publication had a profound impact on the further development of G. theology. Though Reimarus always remained basically a follower of Wolff, he was often quite critical of Wolffian rationalism in his discussion of logic and psychology. 
Reinhold, Karl Leonhard 17431819, Austrian philosopher who was both a popularizer and a critic of Kant. He was the first occupant of the chair of critical philosophy established at the  of Jena in 1787. His Briefe über die Kantische Philosophie 1786/87 helped to popularize Kantianism. Reinhold also proclaimed the need for a more “scientific” presentation of the critical philosophy, in the form of a rigorously deductive system in which everything is derivable from a single first principle “the principle of consciousness”. He tried to satisfy this need with Elementarphilosophie “Elementary Philosophy” or “Philosophy of the Elements”, expounded in his Versuch einer neuen Theorie des menschlichen Vorstellungsvermögens “Attempt at a New Theory of the Human Faculty of Representation,” 1789, Beyträge zur Berichtigung bisheriger Missverständnisse der Philosophen I “Contributions to the Correction of the Prevailing Misunderstandings of Philosophers,” 1790, and Ueber das Fundament des philosophischen Wissens “On the Foundation of Philosophical Knowledge,” 1791. His criticism of the duality of Kant’s starting point and of the ad hoc character of his deductions contributed to the demand for a more coherent exposition of transcendental idealism, while his strategy for accomplishing this task stimulated others above all, Fichte to seek an even more “fundamental” first principle for philosophy. Reinhold later became an enthusiastic adherent, first of Fichte’s Wissenschaftslehre and then of Bardili’s “rational realism,” before finally adopting a novel “linguistic” approach to philosophical problems. 
reism, also called concretism, the theory that the basic entities are concrete objects. Reism differs from nominalism in that the problem of universals is not its only motivation and often not the principal motivation for the theory. Three types of reism can be distinguished. 1 Brentano held that every object is a concrete or individual thing. He said that substances, aggregates of substances, parts of substances, and individual properties of substances are the only things that exist. There is no such thing as the existence or being of an object; and there are no non-existent objects. One consequence of this doctrine is that the object of thought what the thought is about is always an individual object and not a proposition. For example, the thought that this paper is white is about this paper and not about the proposition that this paper is white. Meinong attacked Brentano’s concretism and argued that thoughts are about “objectives,” not objects. 2 Kotarbigski, who coined the term ‘reism’, holds as a basic principle that only concrete objects exist. Although things may be hard or soft, red or blue, there is no such thing as hardness, softness, redness, or blueness. Sentences that contain abstract words are either strictly meaningless or can be paraphrased into sentences that do not contain any abstract words. Kotarbinski is both a nominalist and a materialist. Brentano was a nominalist and a dualist. 3 Thomas Garrigue Masaryk’s concretism is quite different from the first two. For him, concretism is the theory that all of a person’s cognitive faculties participate in every instance of knowing: reason, senses, emotion, and will. 
relation, a two-or-more-place property e.g., loves or between, or the extension of such a property. In set theory, a relation is any set of ordered pairs or triplets, etc., but these are reducible to pairs. For simplicity, the formal exposition here uses the language of set theory, although an intensional property-theoretic view is later assumed. The terms of a relation R are the members of the pairs constituting R, the items that R relates. The collection D of all first terms of pairs in R is the domain of R; any collection with D as a subcollection may also be so called. Similarly, the second terms of these pairs make up or are a subcollection of the range counterdomain or converse domain of R. One usually works within a set U such that R is a subset of the Cartesian product U$U the set of all ordered pairs on U. Relations can be: 1 reflexive or exhibit reflexivity: for all a, aRa. That is, a reflexive relation is one that, like identity, each thing bears to itself. Examples: a weighs as much as b; or the universal relation, i.e., the relation R such that for all a and b, aRb. 2 symmetrical or exhibit symmetry: for all a and b, aRb P bRa. In a symmetrical relation, the order of the terms is reversible. Examples: a is a sibling of b; a and b have a common divisor. Also symmetrical is the null relation, under which no object is related to anything. 3 transitive or exhibit transitivity: for all a, b, and c, aRb & bRc P aRc. Transitive relations carry across a middle term. Examples: a is less than b; a is an ancestor of b. Thus, if a is less than b and b is less than c, a is less than c: less than has carried across the middle term, b. 4 antisymmetrical: for all a and b, aRb & bRa P a % b. 5 trichotomous, connected, or total trichotomy: for all a and b, aRb 7 bRa 7 a % b. 6 asymmetrical: aRb & bRa holds for no a and b. 7 functional: for all a, b, and c, aRb & aRc P b % c. In a functional relation which may also be called a function, each first term uniquely determines a second term. R is non-reflexive if it is not reflexive, i.e., if the condition 1 fails for at least one object a. R is non-symmetric if 2 fails for at least one pair of objects a, b. Analogously for non-transitive. R is irreflexive aliorelative if 1 holds for no object a and intransitive if 3 holds for no objects a, b, and c. Thus understands is non-reflexive since some things do not understand themselves, but not irreflexive, since some things do; loves is nonsymmetric but not asymmetrical; and being a cousin of is non-transitive but not intransitive, as being mother of is. 13 define an equivalence relation e.g., the identity relation among numbers or the relation of being the same age as among people. A class of objects bearing an equivalence relation R to each other is an equivalence class under R. 1, 3, and 4 define a partial order; 3, 5, and 6 a linear order. Similar properties define other important classifications, such as lattice and Boolean algebra. The converse of a relation R is the set of all pairs b, a such that aRb; the comreism relation 788    788 plement of R is the set of all pairs a, b such that aRb i.e. aRb does not hold. A more complex example will show the power of a relational vocabulary. The ancestral of R is the set of all a, b such that either aRb or there are finitely many cI , c2, c3, . . . , cn such that aRcI and c1Rc2 and c2Rc3 and . . . and cnRb. Frege introduced the ancestral in his theory of number: the natural numbers are exactly those objects bearing the ancestral of the successor-of relation to zero. Equivalently, they are the intersection of all sets that contain zero and are closed under the successor relation. This is formalizable in second-order logic. Frege’s idea has many applications. E.g., assume a set U, relation R on U, and property F. An element a of U is hereditarily F with respect to R if a is F and any object b which bears the ancestral of R to a is also F. Hence F is here said to be a hereditary property, and the set a is hereditarily finite with respect to the membership relation if a is finite, its members are, as are the members of its members, etc. The hereditarily finite sets or the sets hereditarily of cardinality ‹ k for any inaccessible k are an important subuniverse of the universe of sets. Philosophical discussions of relations typically involve relations as special cases of properties or sets. Thus nominalists and Platonists disagree over the reality of relations, since they disagree about properties in general. Similarly, one important connection is to formal semantics, where relations are customarily taken as the denotations of relational predicates. Disputes about the notion of essence are also pertinent. One says that a bears an internal relation, R, to b provided a’s standing in R to b is an essential property of a; otherwise a bears an external relation to b. If the essentialaccidental distinction is accepted, then a thing’s essential properties will seem to include certain of its relations to other things, so that we must admit internal relations. Consider a point in space, which has no identity apart from its place in a certain system. Similarly for a number. Or consider my hand, which would perhaps not be the same object if it had not developed as part of my body. If it is true that I could not have had other parents  that possible persons similar to me but with distinct parents would not really be me  then I, too, am internally related to other things, namely my parents. Similar arguments would generate numerous internal relations for organisms, artifacts, and natural objects in general. Internal relations will also seem to exist among properties and relations themselves. Roundness is essentially a kind of shape, and the relation larger than is essentially the converse of the relation smaller than. In like usage, a relation between a and b is intrinsic if it depends just on how a and b are; extrinsic if they have it in virtue of their relation to other things. Thus, higher-than intrinsically relates the Alps to the Appalachians. That I prefer viewing the former to the latter establishes an extrinsic relation between the mountain ranges. Note that this distinction is obscure as is internal-external. One could argue that the Alps are higher than the Appalachians only in virtue of the relation of each to something further, such as space, light rays, or measuring rods. Another issue specific to the theory of relations is whether relations are real, given that properties do exist. That is, someone might reject nominalism only to the extent of admitting one-place properties. Although such doctrines have some historical importance in, e.g., Plato and Bradley, they have disappeared. Since relations are indispensable to modern logic and semantics, their inferiority to one-place properties can no longer be seriously entertained. Hence relations now have little independent significance in philosophy. 
relational logic, the formal study of the properties of and operations on binary relations that was initiated by Peirce between 1870 and 2. Thus, in relational logic, one might examine the formal properties of special kinds of relations, such as transitive relations, or asymmetrical ones, or orderings of certain types. Or the focus might be on various operations, such as that of forming the converse or relative product. Formal deductive systems used in such studies are generally known as calculi of relations. 
relativism, the denial that there are certain kinds of universal truths. There are two main types, cognitive and ethical. Cognitive relativism holds that there are no universal truths about the world: the world has no intrinsic characteristics, there are just different ways of interpreting it. The Grecian Sophist Protagoras, the first person on record to hold such a view, said, “Man is the measure of all things; of things that are that they are, and of things that are not that they are not.” Goodman, Putnam, and Rorty are contemporary philosophers who have held versions of relativism. Rorty says, e.g., that “ ‘objective truth’ is no more and no less than the best idea we currently have about how to explain what is going on.” Critics of cognitive relativism contend that it is self-referentially incoherent, since it presents its statements as universally true, rather than simply relatively so. Ethical relativism is the theory that there are no universally valid moral principles: all moral principles are valid relative to culture or individual choice. There are two subtypes: conventionalism, which holds that moral principles are valid relative to the conventions of a given culture or society; and subjectivism, which maintains that individual choices are what determine the validity of a moral principle. Its motto is, Morality lies in the eyes of the beholder. As Ernest Hemingway wrote, “So far, about morals, I know only that what is moral is what you feel good after and what is immoral is what you feel bad after.” Conventionalist ethical relativism consists of two theses: a diversity thesis, which specifies that what is considered morally right and wrong varies from society to society, so that there are no moral principles accepted by all societies; and a dependency thesis, which specifies that all moral principles derive their validity from cultural acceptance. From these two ideas relativists conclude that there are no universally valid moral principles applying everywhere and at all times. The first thesis, the diversity thesis, or what may simply be called cultural relativism, is anthropological; it registers the fact that moral rules differ from society to society. Although both ethical relativists and non-relativists typically accept cultural relativism, it is often confused with the normative thesis of ethical relativism. The opposite of ethical relativism is ethical objectivism, which asserts that although cultures may differ in their moral principles, some moral principles have universal validity. Even if, e.g., a culture does not recognize a duty to refrain from gratuitous harm, that principle is valid and the culture should adhere to it. There are two types of ethical objectivism, strong and weak. Strong objectivism, sometimes called absolutism, holds that there is one true moral system with specific moral rules. The ethics of ancient Israel in the Old Testament with its hundreds of laws exemplifies absolutism. Weak objectivism holds that there is a core morality, a determinate set of principles that are universally valid usually including prohibitions against killing the innocent, stealing, breaking of promises, and lying. But weak objectivism accepts an indeterminate area where relativism is legitimate, e.g., rules regarding sexual mores and regulations of property. Both types of objectivism recognize what might be called application relativism, the endeavor to apply moral rules where there is a conflict between rules or where rules can be applied in different ways. For example, the ancient Callactians ate their deceased parents but eschewed the impersonal practice of burying them as disrespectful, whereas contemporary society has the opposite attitudes about the care of dead relatives; but both practices exemplify the same principle of the respect for the dead. According to objectivism, cultures or forms of life can fail to exemplify an adequate moral community in at least three ways: 1 the people are insufficiently intelligent to put constitutive principles in order; 2 they are under considerable stress so that it becomes too burdensome to live by moral principles; and 3 a combination of 1 and 2. Ethical relativism is sometimes confused with ethical skepticism, the view that we cannot know whether there are any valid moral principles. Ethical nihilism holds that there are no valid moral principles. J. L. Mackie’s error theory is a version of this view. Mackie held that while we all believe some moral principles to be true, there are compelling arguments to the contrary. Ethical objectivism must be distinguished from moral realism, the view that valid moral principles are true, independently of human choice. Objectivism may be a form of ethical constructivism, typified by Rawls, whereby objective principles are simply those that impartial human beings would choose behind the veil of ignorance. That is, the principles are not truly independent of hypothetical human choices, but are constructs from those choices. 
relativity, a term applied to Einstein’s theories of electrodynamics special relativity, 5 and gravitation general relativity, 6 because both hold that certain physical quantities, formerly considered objective, are actually “relative to” the state of motion of the observer. They are called “special” and “general” because, in special relativity, electrodynamical laws determine a restricted class of kinematical reference frames, the “inertial frames”; in general relativity, the very distinction between inertial frames and others becomes a relative distinction. Special relativity. Classical mechanics makes no distinction between uniform motion and rest: not velocity, but acceleration is physically detectable, and so different states of uniform motion are physically equivalent. But classical electrodynamics describes light as wave motion with a constant velocity through a medium, the “ether.” It follows that the measured velocity of light should depend on the motion of the observer relative to the medium. When interferometer experiments suggested that the velocity of light is independent of the motion of the source, H. A. Lorentz proposed that objects in motion contract in the direction of motion through the ether while their local time “dilates”, and that this effect masks the difference in the velocity of light. Einstein, however, associated the interferometry results with many other indications that the theoretical distinction between uniform motion and rest in the ether lacks empirical content. He therefore postulated that, in electrodynamics as in mechanics, all states of uniform motion are equivalent. To explain the apparent paradox that observers with different velocities can agree on the velocity of light, he criticized the idea of an “absolute” or frame-independent measure of simultaneity: simultaneity of distant events can only be established by some kind of signaling, but experiment suggested that light is the only signal with an invariant velocity, and observers in relative motion who determine simultaneity with light signals obtain different results. Furthermore, since objective measurement of time and length presupposes absolute simultaneity, observers in relative motion will also disagree on time and length. So Lorentz’s contraction and dilatation are not physical effects, but consequences of the relativity of simultaneity, length, and time, to the motion of the observer. But this relativity follows from the invariance of the laws of electrodynamics, and the invariant content of the theory is expressed geometrically in Minkowski spacetime. Logical empiricists took the theory as an illustration of how epistemological analysis of a concept time could eliminate empirically superfluous notions absolute simultaneity. General relativity. Special relativity made the velocity of light a limit for all causal processes and required revision of Newton’s theory of gravity as an instantaneous action at a distance. General relativity incorporates gravity into the geometry of space-time: instead of acting directly on one another, masses induce curvature in space-time. Thus the paths of falling bodies represent not forced deviations from the straight paths of a flat space-time, but “straightest” paths in a curved space-time. While space-time is “locally” Minkowskian, its global structure depends on mass-energy distribution. The insight behind this theory is the equivalence of gravitational and inertial mass: since a given gravitational field affects all bodies equally, weight is indistinguishable from the inertial force of acceleration; freefall motion is indistinguishable from inertial motion. This suggests that the Newtonian decomposition of free fall into inertial and accelerated components is arbitrary, and that the freefall path itself is the invariant basis for the structure of space-time. A philosophical motive for the general theory was to extend the relativity of motion. Einstein saw special relativity’s restricted class of equivalent reference frames as an “epistemological defect,” and he sought laws that would apply to any frame. His inspiration was Mach’s criticism of the Newtonian distinction between “absolute” rotation and rotation relative to observable bodies like the “fixed stars.” Einstein formulated Mach’s criticism as a fundamental principle: since only relative motions are observable, local inertial effects should be explained by the cosmic distribution of masses and by motion relative to them. Thus not only velocity and rest, but motion in general would be relative. Einstein hoped to effect this generalization by eliminating the distinction between inertial frames and freely falling frames. Because free fall remains a privileged state of motion, however, non-gravitational acceleration remains detectable, and absolute rotation remains distinct from relative rotation. Einstein also thought that relativity of motion would result from the general covariance coordinate-independence of his theory  i.e., that general equivalence of coordinate systems meant general equivalence relativism, scientific relativity 791    791 of states of motion. It is now clear, however, that general covariance is a mathematical property of physical theories without direct implications about motion. So general relativity does not “generalize” the relativity of motion as Einstein intended. Its great accomplishments are the unification of gravity and geometry and the generalization of special relativity to space-times of arbitrary curvature, which has made possible the modern investigation of cosmological structure. 
relevance logic, any of a range of logics and philosophies of logic united by their insistence that the premises of a valid inference must be relevant to the conclusion. Standard, or classical, logic contains inferences that break this requirement, e.g., the spread law, that from a contradiction any proposition whatsoever follows. Relevance logic had its genesis in a system of strenge Implikation published by Wilhelm Ackermann in 6. Ackermann’s idea for rejecting irrelevance was taken up and developed by Alan Anderson and Nuel Belnap in a series of papers between 9 and Anderson’s death in 4. The first main summaries of these researches appeared under their names, and those of many collaborators, in Entailment: The Logic of Relevance and Necessity vol. 1, 5; vol. 2, 2. By the time of Anderson’s death, a substantial research effort into relevance logic was under way, and it has continued. Besides the rather vague unity of the idea of relevance between premises and conclusion, there is a technical criterion often used to mark out relevance logic, introduced by Belnap in 0, and applicable really only to propositional logics the main focus of concern to date: a necessary condition of relevance is that premises and conclusion should share a propositional variable. Early attention was focused on systems E of entailment and T of ticket entailment. Both are subsystems of C. I. Lewis’s system S4 of strict implication and of classical truth-functional logic i.e., consequences in E and T in ‘P’ are consequences in S4 in ‘ ’ and in classical logic in ‘/’. Besides rejection of the spread law, probably the most notorious inference that is rejected is disjunctive syllogism DS for extensional disjunction which is equivalent to detachment for material implication: A 7 B,ÝA , B. The reason is immediate, given acceptance of Simplification and Addition: Simplification takes us from A & ÝA to each conjunct, and Addition turns the first conjunct into A 7 B. Unless DS were rejected, the spread law would follow. Since the late 0s, attention has shifted to the system R of relevant implication, which adds permutation to E, to mingle systems which extend E and R by the mingle law A P A P A, and to contraction-free logics, which additionally reject contraction, in one form reading A P A P B P A P B. R minus contraction RW differs from linear logic, much studied recently in computer science, only by accepting the distribution of ‘&’ over ‘7’, which the latter rejects. Like linear logic, relevance logic contains both truth-functional and non-truth-functional connectives. Unlike linear logic, however, R, E, and T are undecidable unusual among propositional logics. This result was obtained only in 4. In the early 0s, relevance logics were given possible-worlds semantics by several authors working independently. They also have axiomatic, natural deduction, and sequent or consecution formulations. One technical result that has attracted attention has been the demonstration that, although relevance logics reject DS, they all accept Ackermann’s rule Gamma: that if A 7 B and ÝA are theses, so is B. A recent result occasioning much surprise was that relevant arithmetic consisting of Peano’s postulates on the base of quantified R does not admit Gamma. 
reliabilism, a type of theory in epistemology that holds that what qualifies a belief as knowledge or as epistemically justified is its reliable linkage to the truth. David Armstrong motivates reliabilism with an analogy between a thermometer that reliably indicates the temperature and a belief that reliably indicates the truth. A belief qualifies as knowledge, he says, if there is a lawlike connection in nature that guarantees that the belief is true. A cousin of the nomic sufficiency account is the counterfactual approach, proposed by Dretske, Goldman, and Nozick. A typical formulation of this approach says that a belief qualifies relativity, general reliabilism 792    792 as knowledge if the belief is true and the cognizer has reasons for believing it that would not obtain unless it were true. For example, someone knows that the telephone is ringing if he believes this, it is true, and he has a specific auditory experience that would not occur unless the telephone were ringing. In a slightly different formulation, someone knows a proposition if he believes it, it is true, and if it were not true he would not believe it. In the example, if the telephone were not ringing, he would not believe that it is, because he would not have the same auditory experience. These accounts are guided by the idea that to know a proposition it is not sufficient that the belief be “accidentally” true. Rather, the belief, or its mode of acquisition, must “track,” “hook up with,” or “indicate” the truth. Unlike knowledge, justified belief need not guarantee or be “hooked up” with the truth, for a justified belief need not itself be true. Nonetheless, reliabilists insist that the concept of justified belief also has a connection with truth acquisition. According to Goldman’s reliable process account, a belief’s justificational status depends on the psychological processes that produce or sustain it. Justified beliefs are produced by appropriate psychological processes, unjustified beliefs by inappropriate processes. For example, beliefs produced or preserved by perception, memory, introspection, and “good” reasoning are justified, whereas beliefs produced by hunch, wishful thinking, or “bad” reasoning are unjustified. Why are the first group of processes appropriate and the second inappropriate? The difference appears to lie in their reliability. Among the beliefs produced by perception, introspection, or “good” reasoning, a high proportion are true; but only a low proportion of beliefs produced by hunch, wishful thinking, or “bad” reasoning are true. Thus, what qualifies a belief as justified is its being the outcome of a sequence of reliable belief-forming processes. Reliabilism is a species of epistemological externalism, because it makes knowledge or justification depend on factors such as truth connections or truth ratios that are outside the cognizer’s mind and not necessarily accessible to him. Yet reliabilism typically emphasizes internal factors as well, e.g., the cognitive processes responsible for a belief. Process reliabilism is a form of naturalistic epistemology because it centers on cognitive operations and thereby paves the way for cognitive psychology to play a role in epistemology.
Renouvier, Charles 18153,  philosopher influenced by Kant and Comte, the latter being one of his teachers. Renouvier rejected many of the views of both these philosophers, however, charting his own course. He emphasized the irreducible plurality and individuality of all things against the contemporary tendencies toward absolute idealism. Human individuality he associated with indeterminism and freedom. To the extent that agents are undetermined by other things and self-determining, they are unique individuals. Indeterminism also extends to the physical world and to knowledge. He rejected absolute certitude, but defended the universality of the laws of logic and mathematics. In politics and religion, he emphasized individual freedom and freedom of conscience. His emphasis on plurality, indeterminism, freedom, novelty, and process influenced James and, through James,  pragmatism. 


re-praesentatum: Grice plays with this as a philosophical semanticist, rather than a philosophical psychologist. But the re-praesentatum depends on the ‘praesentatum,’ which corresponds to Grice’s sub-perceptum (not the ‘conceptus’). cf. Grice on Peirce’s representamen (“You don’t want to go there,” – Grice to his tutees). It seems that in the one-off predicament, iconicy plays a role: the drawing of a skull to indicate danger, the drawing of an arrow at the fork of a road to indicate which way the emissor’s flowers, who were left behind, are supposed to take (Carruthers). Suppose Grice joins the Oxfordshire cricket club. He will represent Oxfordshire. He will do for Oxfordshire what Oxfordshire cannot do for herself. Similarly, by uttering “Smoke!,” the utterer means that there is fire somewhere. “Smoke!” is a communication-device if it does for smoke what smoke cannot do for itself, influence thoughts and behaviour. Or does it?! It MWheIGHT. But suppose that the fire is some distant from the addresse. And the utterer HAS LEARNED That there is fire in the distance. So he utters ‘Smoke!’ Where? Oh, you won’t see it. But I was told there is smoke on the outskirts. Thanks for warning me! rĕ-praesento , āvi, ātum, 1, v. a.  I. To bring before one, to bring back; to show, exhibit, display, manifest, represent (class.): “per quas (visiones) imagines rerum absentium ita repraesentantur animo, ut eas cernere oculis ac praesentes habere videamur,” Quint. 6, 2, 29: “memoriae vis repraesentat aliquid,” id. 11, 2, 1; cf. Plin. Ep. 9, 28, 3: “quod templum repraesentabat memoriam consulatūs mei,” Cic. Sest. 11, 26: si quis vultu torvo ferus simulet Catonem, Virtutemne repraesentet moresque Catonis? * Hor. Ep. 1, 19, 14: “imbecillitatem ingenii mei,” Val. Max. 2, 7, 6: “movendi ratio aut in repraesentandis est aut imitandis adfectibus,” Quint. 11, 3, 156: “urbis species repraesentabatur animis,” Curt. 3, 10, 7; cf.: “affectum patris amissi,” Plin. Ep. 4, 19, 1: “nam et vera esse et apte ad repraesentandam iram deūm ficta possunt,” Liv. 8, 6, 3 Weissenb. ad loc.: “volumina,” to recite, repeat, Plin. 7, 24, 24, § 89: “viridem saporem olivarum etiam post annum,” Col. 12, 47, 8: “faciem veri maris,” id. 8, 17, 6: “colorem constantius,” to show, exhibit, Plin. 37, 8, 33, § 112: “vicem olei,” i. e. to supply the place of, id. 28, 10, 45, § 160; cf. id. 18, 14, 36, § 134.— B. Of painters, sculptors, etc., to represent, portray, etc. (post-Aug. for adumbro): “Niceratus repraesentavit Alcibiadem,” Plin. 34, 8, 19, § 88.—With se, to present one's self, be present, Col. 1, 8, 11; 11, 1, 26; Dig. 48, 5, 15, § 3.— II. In partic., mercant. t. t., to pay immediately or on the spot; to pay in ready money: reliquae pecuniae vel usuram Silio pendemus, dum a Faberio vel ab aliquo qui Faberio debet, repraesentabimus, shall be enabled to pay immediately, Cic. Att. 12, 25, 1; 12, 29, 2: “summam,” Suet. Aug. 101: “legata,” id. Calig. 16: “mercedem,” id. Claud. 18; id. Oth. 5; Front. Strat. 1, 11, 2 Oud. N. cr.: “dies promissorum adest: quem etiam repraesentabo, si adveneris,” shall even anticipate, Cic. Fam. 16, 14, 2; cf. fideicommissum, to discharge immediately or in advance, Dig. 35, 1, 36.— B. Transf., in gen., to do, perform, or execute any act immediately, without delay, forthwith; hence, not to defer or put off; to hasten (good prose): se, quod in longiorem diem collaturus esset, repraesentaturum et proximā nocte castra moturum, * Caes. B. G. 1, 40: “festinasse se repraesentare consilium,” Curt. 6, 11, 33: “petis a me, ut id quod in diem suum dixeram debere differri, repraesentem,” Sen. Ep. 95, 1; and Front. Aquaed. 119 fin.: “neque exspectare temporis medicinam, quam repraesentare ratione possimus,” to apply it immediately, Cic. Fam. 5, 16, 6; so, “improbitatem suam,” to hurry on, id. Att. 16, 2, 3: “spectaculum,” Suet. Calig. 58: “tormenta poenasque,” id. Claud. 34: “poenam,” Phaedr. 3, 10, 32; Val. Max. 6, 5, ext. 4: “verbera et plagas,” Suet. Vit. 10: “vocem,” to sing immediately, id. Ner. 21 et saep.: “si repraesentari morte meā libertas civitatis potest,” can be immediately recovered, Cic. Phil. 2, 46, 118: “minas irasque caelestes,” to fulfil immediately, Liv. 2, 36, 6 Weissenb. ad loc.; cf. Suet. Claud. 38: “judicia repraesentata,” held on the spot, without preparation, Quint. 10, 7, 2.— C. To represent, stand in the place of (late Lat.): nostra per eum repraesentetur auctoritas, Greg. M. Ep. 1, 1.

Response: Chomsky hated it. Grice changed it to ‘effect.’ Or not. “Stimulus and response,” Skinner's behavioral theory was largely set forth in his first book, Behavior of Organisms (1938).[9] Here, he gives a systematic description of the manner in which environmental variables control behavior. He distinguished two sorts of behavior which are controlled in different ways:  Respondent behaviors are elicited by stimuli, and may be modified through respondent conditioning, often called classical (or pavlovian) conditioning, in which a neutral stimulus is paired with an eliciting stimulus. Such behaviors may be measured by their latency or strength. Operant behaviors are 'emitted,' meaning that initially they are not induced by any particular stimulus. They are strengthened through operant conditioning (aka instrumental conditioning), in which the occurrence of a response yields a reinforcer. Such behaviors may be measured by their rate. Both of these sorts of behavior had already been studied experimentally, most notably: respondents, by Ivan Pavlov;[25] and operants, by Edward Thorndike.[26] Skinner's account differed in some ways from earlier ones,[27] and was one of the first accounts to bring them under one roof.

rerum natura Latin, ‘the nature of things’, metaphysics. The phrase can also be used more narrowly to mean the nature of physical reality, and often it presupposes a naturalistic view of all reality. Lucretius’s epic poem De rerum natura is an Epicurean physics, designed to underpin the Epicurean morality.
Responsibility – cited by H. P. Grice in “The causal theory of perception” -- a condition that relates an agent to actions of, and consequences connected to, that agent, and is always necessary and sometimes sufficient for the appropriateness of certain kinds of appraisals of that agent. Responsibility has no single definition, but is several closely connected specific concepts. Role responsibility. Agents are identified by social roles that they occupy, say parent or professor. Typically duties are associated with such roles  to care for the needs of their children, to attend classes and publish research papers. A person in a social role is “responsible for” the execution of those duties. One who carries out such duties is “a responsible person” or “is behaving responsibly.” Causal responsibility. Events, including but not limited to human actions, cause other events. The cause is “responsible” for the effect. Causal responsibility does not imply consciousness; objects and natural phenomena may have causal responsibility. Liability responsibility. Practices of praise and blame include constraints on the mental stance that an agent must have toward an action or a consequence of action, in order for praise or blame to be appropriate. To meet such constraints is to meet a fundamental necessary condition for liability for praise or blame  hence the expression ‘liability responsibility’. These constraints include such factors as intention, knowledge, recklessness toward consequences, absence of mistake, accident, inevitability of choice. An agent with the capability for liability responsibility may lack it on some occasion  when mistaken, for example. Capacity responsibility. Practices of praise and blame assume a level of intellectual and emotional capability. The severely mentally disadvantaged or the very young, for example, do not have the capacity to meet the conditions for liability responsibility. They are not “responsible” in that they lack capacity responsibility. Both morality and law embody and respect these distinctions, though law institutionalizes and formalizes them. Final or “bottom-line” assignment of responsibility equivalent to indeed deserving praise or blame standardly requires each of the latter three specific kinds of responsibility. The first kind supplies some normative standards for praise or blame. 
resultance, a relation according to which one property the resultant property, sometimes called the consequential property is possessed by some object or event in virtue of and hence as a result of that object or event possessing some other property or set of properties. The idea is that properties of things can be ordered into connected levels, some being more basic than and giving rise to others, the latter resulting from the former. For instance, a figure possesses the property of being a triangle in virtue of its possessing a collection of properties, including being a plane figure, having three sides, and so on; the former resulting from the latter. An object is brittle has the property of being brittle in virtue of having a certain molecular structure. It is often claimed that moral properties like rightness and goodness are resultant properties: an action is right in virtue of its possessing other properties. These examples make it clear that the nature of the necessary connection holding between a resultant property and those base properties that ground it may differ from case to case. In the geometrical example, the very concept of being a triangle grounds the resultance relation in question, and while brittleness is nomologically related to the base properties from which it results, in the moral case, the resultance relation is arguably neither conceptual nor causal. 
Richard Rufus, also called Richard of Cornwall d. c.1260, English philosopher-theologian who wrote some of the earliest commentaries on Aristotle in the Latin West. His commentaries were not cursory summaries; they included sustained philosophical discussions. Richard was a master of arts at Paris, where he studied with Alexander of Hales; he was also deeply influenced by Robert Grosseteste. He left Paris and joined the Franciscan order in 1238; he was ordained in England. In 1256, he became regent master of the Franciscan studium at Oxford; according to Roger Bacon, he was the most influential philosophical theologian at Oxford in the second half of the thirteenth century. In addition to his Aristotle commentaries, Richard wrote two commentaries on Peter Lombard’s Sentences c.1250, c.1254. In the first of these he borrowed freely from Robert Grosseteste, Alexander of Hales, and Richard Fishacre; the second commentary was a critical condensation of the lectures of his younger contemporary, St. Bonaventure, presented in Paris. Richard Rufus was the first medieval proponent of the theory of impetus; his views on projectile motion were cited by Franciscus Meyronnes. He also advocated other arguments first presented by Johannes Philoponus. Against the eternity of the world, he argued: 1 past time is necessarily finite, since it has been traversed, and 2 the world is not eternal, since if the world had no beginning, no more time would transpire before tomorrow than before today. He also argued that if the world had not be
en created ex nihilo, the first cause would be mutable. Robert Grosseteste cited one of Richard’s arguments against the eternity of the world in his notes on Aristotle’s Physics. In theology, Richard denied the validity of Anselm’s ontological argument, but, anticipating Duns Scotus, he argued that the existence of an independent being could be inferred from its possibility. Like Duns Scotus, he employs the formal distinction as an explanatory tool; in presenting his own views, Duns Scotus cited Richard’s definition of the formal distinction. Richard stated his philosophical views briefly, even cryptically; his Latin prose style is sometimes eccentric, characterized by interjections in which he addresses questions to God, himself, and his readers. He was hesitant about the value of systematic theology for the theologian, deferring to biblical exposition as the primary forum for theological discussion. In systematic theology, he emphasized Aristotelian philosophy and logic. He was a well-known logician; some scholars believe he is the famous logician known as the Magister Abstractionum. Though he borrowed freely from his contemporaries, he was a profoundly original philosopher. 
Ricoeur, P.  hermeneuticist and phenomenologist who has been a professor at several  universities as well as the  of Naples, Yale , and the  of Chicago. He has received major prizes from France, G.y, and Italy. He is the author of twenty-some volumes tr. in a variety of languages. Among his best-known books are Freedom and Nature: The Voluntary and the Involuntary; Freud and Philosophy: An Essay of Interpretation; The Conflict of Interpretations: Essay in Hermeneutics; The Role of the Metaphor: Multi-Disciplinary Studies of the Creation of Meaning in Language, Time and Narrative; and Oneself as Another. His early studies with the  existentialist Marcel resulted in a book-length study of Marcel’s work and later a series of published dialogues with him. Ricoeur’s philosophical enterprise is colored by a continuing tension between faith and reason. His long-standing commitments to both the significance of the individual and the Christian faith are reflected in his hermeneutical voyage, his commitment to the Esprit movement, and his interest in the writings of Emmanuel Mounier. This latter point is also seen in his claim of the inseparability of action and discourse in our quest for meaning. In our comprehension of both history and fiction one must turn to the text to understand its plot as guideline if we are to comprehend experience of any reflective sort. In the end there are no metaphysical or epistemological grounds by which meaning can be verified, and yet our nature is such that possibility must be present before us. Ricoeur attempts his explanation through a hermeneutic phenomenology. The very hermeneutics of existence that follows is itself limited by reason’s questioning of experience and its attempts to transcend the limit through the language of symbols and metaphors. Freedom and meaning come to be realized in the actualization of an ethics that arises out of the very act of existing and thus transcends the mere natural voluntary distinction of a formal ethic. It is clear from his later work that he rejects any form of foundationalism including phenomenology as well as nihilism and easy skepticism. Through a sort of interdependent dialectic that goes beyond the more mechanical models of Hegelianism or Marxism, the self understands itself and is understood by the other in terms of its suffering and its moral actions. 
rights, advantageous positions conferred on some possessor by law, morals, rules, or other norms. There is no agreement on the sense in which rights are advantages. Will theories hold that rights favor the will of the possessor over the conflicting will of some other party; interest theories maintain that rights serve to protect or promote the interests of the right-holder. Hohfeld identified four legal advantages: liberties, claims, powers, and immunities. The concept of a right arose in Roman jurisprudence and was extended to ethics via natural law theory. Just as positive law, the law posited by human lawmakers, confers legal rights, so the natural law confers natural rights. Rights are classified by their specific sources in different sorts of rules. Legal rights are advantageous positions under the law of a society. Other species of institutional rights are conferred by the rules of private organizations, of the moral code of a society, or even of some game. Those who identify natural law with the moral law often identify natural rights with moral rights, but some limit natural rights to our most fundamental rights and contrast them with ordinary moral rights. Others deny that moral rights are natural because they believe that they are conferred by the mores or positive morality of one’s society. One always possesses any specific right by virtue of possessing some status. Thus, rights are also classified by status. Civil rights are those one possesses as a citizen; human rights are possessed by virtue of being human. Presumably women’s rights, children’s rights, patients’ rights, and the rights of blacks as such are analogous. Human rights play very much the same role in ethics once played by natural rights. This is partly because ontological doubts about the existence of God undermine the acceptance of any natural law taken to consist in divine commands, and epistemological doubts about self-evident moral truths lead many to reject any natural law conceived of as the dictates of reason. Although the Thomistic view that natural rights are grounded on the nature of man is often advocated, most moral philosophers reject its teleological conception of human nature defined by essential human purposes. It seems simpler to appeal instead to fundamental rights that must be universal among human beings because they are possessed merely by virtue of one’s status as a human being. Human rights are still thought of as natural in the very broad sense of existing independently of any human action or institution. This explains how they can be used as an independent standard in terms of which to criticize the laws and policies of governments and other organizations. Since human rights are classified by status rather than source, there is another species of human rights that are institutional rather than natural. These are the human rights that have been incorporated into legal systems by international agreements such as the European Convention on Human Rights. It is sometimes said that while natural rights were conceived as purely negative rights, such as the right not to be arbitrarily imprisoned, human rights are conceived more broadly to include positive social and economic rights, such as the right to social security or to an adequate standard of living. But this is surely not true by definition. Traditional natural law theorists such as Grotius and Locke spoke of natural rights as powers and associated them with liberties, rather than with claims against interference. And while modern declarations of human rights typically include social and economic rights, they assume that these are rights in the same sense that traditional political rights are. Rights are often classified by their formal properties. For example, the right not to be battered is a negative right because it imposes a negative duty not to batter, while the creditor’s right to be repaid is a positive right because it imposes a positive duty to repay. The right to be repaid is also a passive right because its content is properly formulated in the passive voice, while the right to defend oneself is an active right because its content is best stated in the active voice. Again, a right in rem is a right that holds against all second parties; a right in personam is a right that holds against one or a few others. This is not quite Hart’s distinction between general and special rights, rights of everyone against everyone, such as the right to free speech, and rights arising from special relations, such as that between creditor and debtor or husband and wife. Rights are conceptually contrasted with duties because rights are advantages while duties are disadvantages. Still, many jurists and philosophers have held that rights and duties are logical correlatives. This does seem to be true of claim rights; thus, the creditor’s right to be repaid implies the debtor’s duty to repay and vice versa. But the logical correlative of a liberty right, such as one’s right to park in front of one’s house, is the absence of any duty for one not to do so. This contrast is indicated by D. D. Raphael’s distinction between rights of recipience and rights of action. Sometimes to say that one has a right to do something is to say merely that it is not wrong for one to act in this way. This has been called the weak sense of ‘a right’. More often to assert that one has a right to do something does not imply that exercising this right is right. Thus, I might have a right to refuse to do a favor for a friend even though it would be wrong for me to do so. Finally, many philosophers distinguish between absolute and prima facie rights. An absolute right always holds, i.e., disadvantages some second party, within its scope; a prima facie right is one that holds unless the ground of the right is outweighed by some stronger contrary reason. 
rigorism, the view that morality consists in that single set of simple or unqualified moral rules, discoverable by reason, which applies to all human beings at all times. It is often said that Kant’s doctrine of the categorical imperative is rigoristic. Two main objections to rigorism are 1 some moral rules do not apply universally  e.g., ‘Promises should be kept’ applies only where there is an institution of promising; and 2 some rules that could be universally kept are absurd  e.g., that everyone should stand on one leg while the sun rises. Recent interpreters of Kant defend him against these objections by arguing, e.g., that the “rules” he had in mind are general guidelines for living well, which are in fact universal and practically relevant, or that he was not a rigorist at all, seeing moral worth as issuing primarily from the agent’s character rather than adherence to rules.
ring of Gyges, a ring that gives its wearer invisibility, discussed in Plato’s Republic II, 359b 360d. Glaucon tells the story of a man who discovered the ring and used it to usurp the throne to defend the claim that those who behave justly do so only because they lack the power to act unjustly. If they could avoid paying the penalty of injustice, Glaucon argues, everyone would be unjust. 
Rorty, R. philosopher, notable for the breadth of his philosophical and cultural interests. He was educated at the  of Chicago and Yale and has taught at Wellesley, Princeton, Virginia, and Stanford. His early work was primarily in standard areas of analytic philosophy such as the philosophy of mind, where, for example, he developed an important defense of eliminative materialism. In 9, however, he published Philosophy and the Mirror of Nature, which was both hailed and denounced as a fundamental critique of analytic philosophy. Both the praise and the abuse were often based on misconceptions, but there is no doubt that Rorty questioned fundamental presuppositions of many Anglo- philosophers and showed affinities for Continental alternatives to analytic philosophy. At root, however, Rorty’s position is neither analytic except in its stylistic clarity nor Continental except in its cultural breadth. His view is, rather, pragmatic, a contemporary incarnation of the distinctively  philosophizing of James, Peirce, and Dewey. On Rorty’s reading, pragmatism involves a rejection of the representationalism that has dominated modern philosophy from Descartes through logical positivism. According to representationalism, we have direct access only to ideas that represent the world, not to the world itself. Philosophy has the privileged role of determining the criteria for judging that our representations are adequate to reality. A main thrust of Philosophy and the Mirror of Nature is to discredit representationalism, first by showing how it has functioned as an unjustified presupposition in classical modern philosophers such as Descartes, Locke, and Kant, and second by showing how analytic philosophers such as Wilfrid Sellars and Quine have revealed the incoherence of representationalist assumptions in contemporary epistemology. Since, on Rorty’s view, representationalism defines the epistemological project of modern philosophy, its failure requires that we abandon this project and, with it, traditional pretensions to a privileged cognitive role for philosophy. Rorty sees no point in seeking a non-representationalist basis for the justification or the truth of our knowledge claims. It is enough to accept as justified beliefs those on which our epistemic community agrees and to use ‘true’ as an honorific term for beliefs that we see as “justified to the hilt.” Rorty characterizes his positive position as “liberal ironism.” His liberalism is of a standard sort, taking as its basic value the freedom of all individuals: first, their freedom from suffering, but then also freedom to form their lives with whatever values they find most compelling. Rorty distinguishes the “public sphere” in which we all share the liberal commitment to universal freedom from the “private spheres” in which we all work out our own specific conception of the good. His ironism reflects his realization that there is no grounding for public or private values other than our deep but contingent commitment to them and his appreciation of the multitude of private values that he does not himself happen to share. Rorty has emphasized the importance of literature and literary criticism  as opposed to traditional philosophy  for providing the citizens of a liberal society with appropriate sensitivities to the needs and values of others. 
Roscelin de Compiègne, philosopher and logician who became embroiled in theological controversy when he applied his logical teachings to the doctrine of the Trinity. Since almost nothing survives of his written work, we must rely on hostile accounts of his views by Anselm of Canterbury and Peter Abelard, both of whom openly opposed his positions. Perhaps the most notorious view Roscelin is said to have held is that universals are merely the puffs of air produced when a word is pronounced. On this point he opposed views current among many theologians that a universal has an existence independent of language, and somehow is what many different particulars are. Roscelin’s aversion to any proposal that different things can be some one thing is probably what led him in his thinking about the three persons of God to a position that sounded suspiciously like the heresy of tritheism. Roscelin also evidently held that the qualities of things are not entities distinct from the subjects that possess them. This indicates that Roscelin probably denied that terms in the Aristotelian categories other than substance signified anything distinct from substances. Abelard, the foremost logician of the twelfth century, studied under Roscelin around 1095 and was undoubtedly influenced by him on the question of universals. Roscelin’s view that universals are linguistic entities remained an important option in medieval thought. Otherwise his positions do not appear to have had much currency in the ensuing decades. 
Rosenzweig, F. G. philosopher and Jewish theologian known as one of the founders of religious existentialism. His early relation to Judaism was tenuous, and at one point he came close to converting to Christianity. A religious experience in a synagogue made him change his mind and return to Judaism. His chief philosophic works are a two-volume study, Hegel and the State 0, and his masterpiece, The Star of Redemption 1. Rosenzweig’s experience in World War I caused him to reject absolute idealism on the ground that it cannot account for the privacy and finality of death. Instead of looking for a unifying principle behind existence, Rosenzweig starts with three independent realities “given” in experience: God, the self, and the world. Calling his method “radical empiricism,” he explains how God, the self, and the world are connected by three primary relations: creation, revelation, and redemption. In revelation, God does not communicate verbal statements but merely a presence that calls for love and devotion from worshipers.
Rosmini-Serbati, Antonio, philosopher, Catholic priest, counselor to Pope Pius IX, and supporter of the supremacy of the church over civil government Neo-Guelphism. Rosmini had two major concerns: the objectivity of human knowledge and the synthesis of philosophical thought within the tradition of Catholic thought. In his Nuovo saggio sull’origine delle idee “New Essay on the Origin of Ideas,” 1830, he identifies the universal a priori intuitive component of all human knowledge with the idea of being that gives us the notion of a possible or ideal being. Everything in the world is known by intellectual perception, which is the synthesis of sensation and the idea of being. Except for the idea of being, which is directly given by God, all ideas derive from abstraction. The objectivity of human knowledge rests on its universal origin in the idea of being. The harmony between philosophy and religion comes from the fact that all human knowledge is the result of divine revelation. Rosmini’s thought was influenced by Augustine and Aquinas, and stimulated by the attempt to find a solution to the contrasting needs of rationalism and empiricism.
Ross: w. d. Aristotelian scholar and moral philosopher. Born in Edinburgh and educated at the  of Edinburgh and at Balliol , Oxford, he became a fellow of Merton , then a fellow, tutor, and eventually provost at Oriel . He was vice-chancellor of Oxford  144 and president of the British Academy 640. He was knighted in 8 in view of national service. Ross was a distinguished classical scholar: he edited the Oxford translations of Aristotle 831 and tr. the Metaphysics and the Ethics himself. His Aristotle 3 is a judicious exposition of Aristotle’s work as a whole. Kant’s Ethical Theory 4 is a commentary on Kant’s The Groundwork of Ethics. His major contribution to philosophy was in ethics: The Right and the Good 0 and Foundations of Ethics9. The view he expressed there was controversial in English-speaking countries for ten years or so. He held that ‘right’ and ‘good’ are empirically indefinable terms that name objective properties the presence of which is known intuitively by persons who are mature and educated. We first cognize them in particular instances, then arrive at general principles involving them by “intuitive induction.” He thought every ethical theory must admit at least one intuition. The knowledge of moral principles is thus rather like knowledge of the principles of geometry. ‘Right’ ‘dutiful’ applies to acts, in the sense of what an agent brings about and there is no duty to act from a good motive, and a right act can have a bad motive; ‘morally good’ applies primarily to the desires that bring about action. He castigated utilitarianism as absorbing all duties into enhancing the wellbeing of everyone affected, whereas in fact we have strong special obligations to keep promises, make reparation for injuries, repay services done, distribute happiness in accord with merit, benefit individuals generally and he concedes this is a weighty matter and ourselves only in respect of knowledge and virtue, and not injure others normally a stronger obligation than that to benefit. That we have these “prima facie” duties is self-evident, but they are only prima facie in the sense that they are actual duties only if there is no stronger conflicting prima facie duty; and when prima facie duties conflict, what one ought to do is what satisfies all of them best  although which this is is a matter of judgment, not self-evidence. He conceded, however, in contrast to his general critique of utilitarianism, that public support of these prima facie principles with their intuitive strength can be justified on utilitarian grounds. To meet various counterexamples Ross introduced complications, such as that a promise is not binding if discharge of it will not benefit the promisee providing this was an implicit understanding, and it is less binding if made long ago or in a casual manner. Only four states of affairs are good in themselves: desire to do one’s duty virtue, knowledge, pleasure, and the distribution of happiness in accordance with desert. Of these, virtue is more valuable than any amount of knowledge or pleasure. In Foundations of Ethics he held that virtue and pleasure are not good in the same sense: virtue is “admirable” but pleasure only a “worthy object of satisfaction” so ‘good’ does not name just one property. 
Rousseau, Jean-Jacques, philosopher, essayist, novelist, and musician, best known for his theories on social freedom and societal rights, education, and religion. Born in Geneva, he was largely self-educated and moved to France as a teenager. Throughout much of his life he moved between Paris and the provinces with several trips abroad including a Scottish stay with Hume and a return visit to Geneva, where he reconverted to Protestantism from his earlier conversion to Catholicism. For a time he was a friend of Diderot and other philosophes and was asked to contribute articles on music for the Encyclopedia. Rousseau’s work can be seen from at least three perspectives. As social contract theorist, he attempts to construct a hypothetical state of nature to explain the current human situation. This evolves a form of philosophical anthropology that gives us both a theory of human nature and a series of pragmatic claims concerning social organization. As a social commentator, he speaks of both practical and ideal forms of education and social organization. As a moralist, he continually attempts to unite the individual and the citizen through some form of universal political action or consent. In Discourse on the Origin and Foundation of Inequality Among Mankind 1755, Rousseau presents us with an almost idyllic view of humanity. In nature humans are first seen as little more than animals except for their special species sympathy. Later, through an explanation of the development of reason and language, he is able to suggest how humans, while retaining this sympathy, can, by distancing themselves from nature, understand their individual selves. This leads to natural community and the closest thing to what Rousseau considers humanity’s perfect moment. Private property quickly follows on the division of labor, and humans find themselves alienated from each other by the class divisions engendered by private property. Thus man, who was born in freedom, now finds himself in chains. The Social Contract or Principles of Political Right 1762 has a more ambitious goal. With an account of the practical role of the legislator and the introduction of the concept of the general will, Rousseau attempts to give us a foundation for good government by presenting a solution to the conflicts between the particular and the universal, the individual and the citizen, and the actual and the moral. Individuals, freely agreeing to a social pact and giving up their rights to the community, are assured of the liberties and equality of political citizenship found in the contract. It is only through being a citizen that the individual can fully realize his freedom and exercise his moral rights and duties. While the individual is naturally good, he must always guard against being dominated or dominating. Rousseau finds a solution to the problems of individual freedoms and interests in a superior form of moral/political action that he calls the general will. The individual as citizen substitutes “I must” for “I will,” which is also an “I shall” when it expresses assent to the general will. The general will is a universal force or statement and thus is more noble than any particular will. In willing his own interest, the citizen is at the same time willing what is communally good. The particular and the universal are united. The individual human participant realizes himself in realizing the good of all. As a practical political commentator Rousseau knew that the universal and the particular do not always coincide. For this he introduced the idea of the legislator, which allows the individual citizen to realize his fulfillment as social being and to exercise his individual rights through universal consent. In moments of difference between the majority will and the general will the legislator will instill the correct moral/political understanding. This will be represented in the laws. While sovereignty rests with the citizens, Rousseau does not require that political action be direct. Although all government should be democratic, various forms of government from representative democracy preferable in small societies to strong monarchies preferable in large nation-states may be acceptable. To shore up the unity and stability of individual societies, Rousseau suggests a sort of civic religion to which all citizens subscribe and in which all members participate. His earlier writings on education and his later practical treatises on the governments of Poland and Corsica reflect related concerns with natural and moral development and with historical and geographical considerations. 
Royce, J. philosopher best known for his pragmatic idealism, his ethics of loyalty, and his theory of community. Educated at Berkeley, at Johns Hopkins, and in G.y, he taught philosophy at Harvard from 2. Royce held that a concept of the absolute or eternal was needed to account for truth, ultimate meaning, and reality in the face of very real evil in human experience. Seeking to reconcile individuals with the Absolute, he postulated, in The World and the Individual 9,1, Absolute Will and Thought as an expression of the concrete and differentiated individuality of the world. Royce saw the individual self as both moral and sinful, developing through social interaction, community experience, and communal and self-interpretation. Self is constituted by a life plan, by loyalty to an ultimate goal. Yet selflimitation and egoism, two human sins, work against achievement of individual goals, perhaps rendering life a senseless failure. The self needs saving and this is the message of religion, argues Royce The Religious Aspects of Philosophy, 5; The Sources of Religious Insight, 2. For Royce, the instrument of salvation is the community. In The Philosophy of Loyalty 8, he develops an ethics of loyalty to loyalty, i.e., the extension of loyalty throughout the human community. In The Problem of Christianity 3, Royce presents a doctrine of community that overcomes the individualismcollectivism dilemma and allows a genuine blending of individual and social will. Community is built through interpretation, a mediative process that reconciles two ideas, goals, and persons, bringing common meaning and understanding. Interpretation involves respect for selves as dynamos of ideas and purposes, the will to interpret, dissatisfaction with partial meanings and narrowness of view, reciprocity, and mutuality. In this work, the Absolute is a “Community of Interpretation and Hope,” in which there is an endlessly accumulating series of interpretations and significant deeds. An individual contribution thus is not lost but becomes an indispensable element in the divine life. Among Royce’s influential students were C. I. Lewis, William Ernest Hocking, Norbert Wiener, Santayana, and T. S. Eliot.
rule of law, the largely formal or procedural properties of a well-ordered legal system. Commonly, these properties are thought to include: a prohibition of arbitrary power the lawgiver is also subject to the laws; laws that are general, prospective, clear, and consistent capable of guiding conduct; and tribunals courts that are reasonably accessible and fairly structured to hear and determine legal claims. Contemporary discussions of the rule of law focus on two major questions: 1 to what extent is conformity to the rule of law essential to the very idea of a legal system; and 2 what is the connection between the rule of law and the substantive moral value of a legal system? 
Russell, Bertrand Arthur William, philosopher, logician, social reformer, and man of letters, one of the founders of analytic philosophy. Born of Celtic Highland stock into an aristocratic family in Wales (then part of England), Russell always divided his interests between politics, philosophy, and the ladies (he married six times). Orphaned at four, he was brought up by his grandmother, who educated him at home with the help of “rather dull” tutors. He studied mathematics at Cambridge and then, as his grandmother says, ‘out of the blue,’ he turned to philosophy. At home he had absorbed J. S. Mill’s liberalism, but not his empiricism. At Cambridge he came under the influence of neo-Hegelianism, especially the idealism of McTaggart, Ward his tutor, and Bradley. His earliest logical views were influenced most by Bradley, especially Bradley’s rejection of psychologism. But, like Ward and McTaggart, he rejected Bradley’s metaphysical monism in favor of pluralism or monadism. Even as an idealist, he held that scientific knowledge was the best available and that philosophy should be built around it. Through many subsequent changes, this belief about science, his pluralism, and his anti-psychologism remained constant. In 5, he conceived the idea of an idealist encyclopedia of the sciences to be developed by the use of transcendental arguments to establish the conditions under which the special sciences are possible. Russell’s first philosophical book, An Essay on the Foundations of Geometry 7, was part of this project, as were other mostly unfinished and unpublished pieces on physics and arithmetic written at this time see his Collected Papers, vols. 12. Russell claimed, in contrast to Kant, to use transcendental arguments in a purely logical way compatible with his anti-psychologism. In this case, however, it should be both possible and preferable to replace them by purely deductive arguments. Another problem arose in connection with asymmetrical relations, which led to contradictions if treated as internal relations, but which were essential for any treatment of mathematics. Russell resolved both problems in 8 by abandoning idealism including internal relations and his Kantian methodology. He called this the one real revolution in his philosophy. With his Cambridge contemporary Moore, he adopted an extreme Platonic realism, fully stated in The Principles of Mathematics 3 though anticipated in A Critical Exposition of the Philosophy of Leibniz 0. Russell’s work on the sciences was by then concentrated on pure mathematics, but the new philosophy yielded little progress until, in 0, he discovered Peano’s symbolic logic, which offered hope that pure mathematics could be treated without Kantian intuitions or transcendental arguments. On this basis Russell propounded logicism, the claim that the whole of pure mathematics could be derived deductively from logical principles, a position he came to independently of Frege, who held a similar but more restricted view but whose work Russell discovered only later. Logicism was announced in The Principles of Mathematics; its development occupied Russell, in collaboration with Whitehead, for the next ten years. Their results were published in Principia Mathematica 013, 3 vols., in which detailed derivations were given for Cantor’s set theory, finite and transfinite arithmetic, and elementary parts of measure theory. As a demonstration of Russell’s logicism, Principia depends upon much prior arithmetization of mathematics, e.g. of analysis, which is not explicitly treated. Even with these allowances much is still left out: e.g., abstract algebra and statistics. Russell’s unpublished papers Papers, vols. 45, however, contain logical innovations not included in Principia, e.g., anticipations of Church’s lambda-calculus. On Russell’s extreme realism, everything that can be referred to is a term that has being though not necessarily existence. The combination of terms by means of a relation results in a complex term, which is a proposition. Terms are neither linguistic nor psychological. The first task of philosophy is the theoretical analysis of propositions into their constituents. The propositions of logic are unique in that they remain true when any of their terms apart from logical constants are replaced by any other terms. In 1 Russell discovered that this position fell prey to self-referential paradoxes. For example, if the combination of any number of terms is a new term, the combination of all terms is a term distinct from any term. The most famous such paradox is called Russell’s paradox. Russell’s solution was the theory of types, which banned self-reference by stratifying terms and expressions into complex hierarchies of disjoint subclasses. The expression ‘all terms’, e.g., is then meaningless unless restricted to terms of specified types, and the combination of terms of a given type is a term of different type. A simple version of the theory appeared in Principles of Mathematics appendix A, but did not eliminate all the paradoxes. Russell developed a more elaborate version that did, in “Mathematical Logic as Based on the Theory of Types” 8 and in Principia. From 3 to 8 Russell sought to preserve his earlier account of logic by finding other ways to avoid the paradoxes  including a well-developed substitutional theory of classes and relations posthumously published in Essays in Analysis, 4, and Papers, vol. 5. Other costs of type theory for Russell’s logicism included the vastly increased complexity of the resulting sysRussell, Bertrand Arthur William Russell, Bertrand Arthur William 802    802 tem and the admission of the problematic axiom of reducibility. Two other difficulties with Russell’s extreme realism had important consequences: 1 ‘I met Quine’ and ‘I met a man’ are different propositions, even when Quine is the man I met. In the Principles, the first proposition contains a man, while the second contains a denoting concept that denotes the man. Denoting concepts are like Fregean senses; they are meanings and have denotations. When one occurs in a proposition the proposition is not about the concept but its denotation. This theory requires that there be some way in which a denoting concept, rather than its denotation, can be denoted. After much effort, Russell concluded in “On Denoting” 5 that this was impossible and eliminated denoting concepts as intermediaries between denoting phrases and their denotations by means of his theory of descriptions. Using firstorder predicate logic, Russell showed in a broad, though not comprehensive range of cases how denoting phrases could be eliminated in favor of predicates and quantified variables, for which logically proper names could be substituted. These were names of objects of acquaintance  represented in ordinary language by ‘this’ and ‘that’. Most names, he thought, were disguised definite descriptions. Similar techniques were applied elsewhere to other kinds of expression e.g. class names resulting in the more general theory of incomplete symbols. One important consequence of this was that the ontological commitments of a theory could be reduced by reformulating the theory to remove expressions that apparently denoted problematic entities. 2 The theory of incomplete symbols also helped solve extreme realism’s epistemic problems, namely how to account for knowledge of terms that do not exist, and for the distinction between true and false propositions. First, the theory explained how knowledge of a wide range of items could be achieved by knowledge by acquaintance of a much narrower range. Second, propositional expressions were treated as incomplete symbols and eliminated in favor of their constituents and a propositional attitude by Russell’s multiple relation theory of judgment. These innovations marked the end of Russell’s extreme realism, though he remained a Platonist in that he included universals among the objects of acquaintance. Russell referred to all his philosophy after 8 as logical atomism, indicating thereby that certain categories of items were taken as basic and items in other categories were constructed from them by rigorous logical means. It depends therefore upon reduction, which became a key concept in early analytic philosophy. Logical atomism changed as Russell’s logic developed and as more philosophical consequences were drawn from its application, but the label is now most often applied to the modified realism Russell held from 5 to 9. Logic was central to Russell’s philosophy from 0 onward, and much of his fertility and importance as a philosopher came from his application of the new logic to old problems. In 0 Russell became a lecturer at Cambridge. There his interests turned to epistemology. In writing a popular book, Problems of Philosophy 2, he first came to appreciate the work of the British empiricists, especially Hume and Berkeley. He held that empirical knowledge is based on direct acquaintance with sense-data, and that matter itself, of which we have only knowledge by description, is postulated as the best explanation of sense-data. He soon became dissatisfied with this idea and proposed instead that matter be logically constructed out of sensedata and unsensed sensibilia, thereby obviating dubious inferences to material objects as the causes of sensations. This proposal was inspired by the successful constructions of mathematical concepts in Principia. He planned a large work, “Theory of Knowledge,” which was to use the multiple relation theory to extend his account from acquaintance to belief and inference Papers, vol. 7. However, the project was abandoned as incomplete in the face of Vitters’s attacks on the multiple relation theory, and Russell published only those portions dealing with acquaintance. The construction of matter, however, went ahead, at least in outline, in Our Knowledge of the External World 4, though the only detailed constructions were undertaken later by Carnap. On Russell’s account, material objects are those series of sensibilia that obey the laws of physics. Sensibilia of which a mind is aware sense-data provide the experiential basis for that mind’s knowledge of the physical world. This theory is similar, though not identical, to phenomenalism. Russell saw the theory as an application of Ockham’s razor, by which postulated entities were replaced by logical constructions. He devoted much time to understanding modern physics, including relativity and quantum theory, and in The Analysis of Matter 7 he incorporated the fundamental ideas of those theories into his construction of the physical world. In this book he abandoned sensibilia as fundamental constituents of the world in favor Russell, Bertrand Arthur William Russell, Bertrand Arthur William 803    803 of events, which were “neutral” because intrinsically neither physical nor mental. In 6 Russell was dismissed from Cambridge on political grounds and from that time on had to earn his living by writing and public lecturing. His popular lectures, “The Philosophy of Logical Atomism” 8, were a result of this. These lectures form an interim work, looking back on the logical achievements of 510 and emphasizing their importance for philosophy, while taking stock of the problems raised by Vitters’s criticisms of the multiple relation theory. In 9 Russell’s philosophy of mind underwent substantial changes, partly in response to those criticisms. The changes appeared in “On Propositions: What They Are and How They Mean” 9 and The Analysis of Mind 1, where the influence of contemporary trends in psychology, especially behaviorism, is evident. Russell gave up the view that minds are among the fundamental constituents of the world, and adopted neutral monism, already advocated by Mach, James, and the  New Realists. On Russell’s neutral monism, a mind is constituted by a set of events related by subjective temporal relations simultaneity, successiveness and by certain special “mnemic” causal laws. In this way he was able to explain the apparent fact that “Hume’s inability to perceive himself was not peculiar.” In place of the multiple relation theory Russell identified the contents of beliefs with images “imagepropositions” and words “word-propositions”, understood as certain sorts of events, and analyzed truth qua correspondence in terms of resemblance and causal relations. From 8 to 4 Russell lived in the United States, where he wrote An Inquiry into Meaning and Truth 0 and his popular A History of Western Philosophy 5. His philosophical attention turned from metaphysics to epistemology and he continued to work in this field after he returned in 4 to Cambridge, where he completed his last major philosophical work, Human Knowledge: Its Scope and Limits 8. The framework of Russell’s early epistemology consisted of an analysis of knowledge in terms of justified true belief though it has been suggested that he unintentionally anticipated Edmund Gettier’s objection to this analysis, and an analysis of epistemic justification that combined fallibilism with a weak empiricism and with a foundationalism that made room for coherence. This framework was retained in An Inquiry and Human Knowledge, but there were two sorts of changes that attenuated the foundationalist and empiricist elements and accentuated the fallibilist element. First, the scope of human knowledge was reduced. Russell had already replaced his earlier Moorean consequentialism about values with subjectivism. Contrast “The Elements of Ethics,” 0, with, e.g., Religion and Science, 5, or Human Society in Ethics and Politics, 4. Consequently, what had been construed as self-evident judgments of intrinsic value came to be regarded as non-cognitive expressions of desire. In addition, Russell now reversed his earlier belief that deductive inference can yield new knowledge. Second, the degree of justification attainable in human knowledge was reduced at all levels. Regarding the foundation of perceptual beliefs, Russell came to admit that the object-knowledge “acquaintance with a sensedatum” was replaced by “noticing a perceptive occurrence” in An Inquiry that provides the non-inferential justification for a perceptual belief is buried under layers of “interpretation” and unconscious inference in even the earliest stages of perceptual processes. Regarding the superstructure of inferentially justified beliefs, Russell concluded in Human Knowledge that unrestricted induction is not generally truthpreserving anticipating Goodman’s “new riddle of induction”. Consideration of the work of Reichenbach and Keynes on probability led him to the conclusion that certain “postulates” are needed “to provide the antecedent probabilities required to justify inductions,” and that the only possible justification for believing these postulates lies, not in their self-evidence, but in the resultant increase in the overall coherence of one’s total belief system. In the end, Russell’s desire for certainty went unsatisfied, as he felt himself forced to the conclusion that “all human knowledge is uncertain, inexact, and partial. To this doctrine we have not found any limitation whatever.” Russell’s strictly philosophical writings of 9 and later have generally been less influential than his earlier writings. His influence was eclipsed by that of logical positivism and ordinary language philosophy. He approved of the logical positivists’ respect for logic and science, though he disagreed with their metaphysical agnosticism. But his dislike of ordinary language philosophy was visceral. In My Philosophical Development 9, he accused its practitioners of abandoning the attempt to understand the world, “that grave and important task which philosophy throughout the ages has hitherto pursued.” 
Russian nihilism, a form of nihilism, a phenomenon mainly of Russia in the 1860s, which, in contrast to the general cultural nihilism that Nietzsche later criticized in the 0s as a “dead-end” devaluing of all values, was futureoriented and “instrumental,” exalting possibility over actuality. Russian nihilists urged the “annihilation”  figurative and literal  of the past and present, i.e., of realized social and cultural values and of such values in process of realization, in the name of the future, i.e., for the sake of social and cultural values yet to be realized. Bakunin, as early as 1842, had stated the basic nihilist theme: “the negation of what exists . . . for the benefit of the future which does not yet exist.” The bestknown literary exemplar of nihilism in Russia is the character Bazarov in Turgenev’s novel Fathers and Sons 1862. Its most articulate spokesman was Dmitri Pisarev 184068, who shared Bazarov’s cultural anti-Romanticism, philosophical anti-idealism, and unquestioned trust in the power of natural science to solve social and moral problems. Pisarev proclaimed, “It is precisely in the [spread-eagled, laboratory] frog that the salvation . . . of the Russian people is to be found.” And he formulated what may serve as the manifesto of Russian nihilism: “What can be broken should be broken; what will stand the blow is fit to live; what breaks into smithereens is rubbish; in any case, strike right and left, it will not and cannot do any harm.” 
Russian philosophy, the philosophy produced by Russian thinkers, both in Russia and in the countries to which they emigrated, from the mideighteenth century to the present. There was no Renaissance in Russia, but in the early eighteenth century Peter the Great, in opening a “window to the West,” opened Russia up to Western philosophical influences. The beginnings of Russian speculation date from that period, in the dialogues, fables, and poems of the anti-Enlightenment thinker Gregory Skovoroda 172294 and in the social tracts, metaphysical treatises, and poems of the Enlightenment thinker Alexander Radishchev 17491802. Until the last quarter of the nineteenth century the most original and forceful Russian thinkers stood outside the academy. Since then, both in Russia and in Western exile, a number of the most important Russian philosophers  including Berdyaev and Lev Shestov 1866 8  have been  professors. The nineteenth-century thinkers, though educated, lacked advanced degrees. The only  professor among them, Peter Lavrov 18230, taught mathematics and science rather than philosophy during the 1850s. If we compare Russian philosophy to G. philosophy of this period, with its galaxy of  professors  Wolff, Kant, Fichte, Schelling, Hegel, Dilthey  the contrast is sharp. However, if we compare Russian philosophy to English or  philosophy, the contrast fades. No professors of philosophy appear in the line from Francis Bacon through Hobbes, Locke, Berkeley, Hume, Bentham, and J. S. Mill, to Spencer. And in France Montaigne, Descartes, Pascal, Rousseau, and Comte were all non-professors. True to their non-professional, even “amateur” status, Russian philosophers until the late nineteenth century paid little attention to the more technical disciplines: logic, epistemology, philosophy of language, and philosophy of science. They focused instead on philosophical anthropology, ethics, social and political philosophy, philosophy of history, and philosophy of religion. In Russia, more than in any other Western cultural tradition, speculation, fiction, and poetry have been linked. On the one hand, major novelists such as Tolstoy and Dostoevsky, and major poets such as Pasternak and Brodsky, have engaged in wide-ranging philosophical reflection. On the other hand, philosophers such as Skovoroda, Alexei Khomyakov 180460, and Vladimir Solovyov 18530 were gifted poets, while thinkers such as Herzen, Konstantin Leontyev 183, and the anti-Leninist Marxist Alexander Bogdanov 18738 made their literary mark with novels, short stories, and memoirs. Such Russian thinkers as Vasily Rozanov 18569 and Shestov, although they wrote no belles lettres, were celebrated in literary circles for their sparkling essayistic and aphoristic styles. Certain preoccupations of nineteenth-century Russian thinkers  especially Pyotr Chaadaev 17941856 during the 1820s and 1830s, the Slavophiles and Westernizers during the 1840s and 1850s, and the Populists during the 1860s and 1870s  might appear to be distinctive but in fact were not. The controversial questions of Russia’s relation to Western Europe and of Russell’s paradox Russian philosophy 805    805 Russia’s “special path” to modernity have their counterparts in the reflections of thinkers in Spain “Spain and Europe”, G.y the Sonderweg  a term of which the Russian osobyi put’ is a translation, and Poland “the Polish Question”. The content of Russian philosophy may be characterized in general terms as tending toward utopianism, maximalism, moralism, and soteriology. To take the last point first: Hegelianism was received in Russia in the 1830s not only as an allembracing philosophical system but also as a vehicle of secular salvation. In the 1860s Darwinism was similarly received, as was Marxism in the 0s. Utopianism appears at the historical and sociopolitical level in two of Solovyov’s characteristic doctrines: his early “free theocracy,” in which the spiritual authority of the Roman pope was to be united with the secular authority of the Russian tsar; and his later ecumenical project of reuniting the Eastern Russian Orthodox and Western Roman Catholic churches in a single “universal [vselenskaia] church” that would also incorporate the “Protestant principle” of free philosophical and theological inquiry. Maximalism appears at the individual and religious level in Shestov’s claim that God, for whom alone “all things are possible,” can cause what has happened not to have happened and, in particular, can restore irrecoverable human loss, such as that associated with disease, deformity, madness, and death. Maximalism and moralism are united at the cosmic and “scientific-technological” level in Nikolai Fyodorov’s 18293 insistence on the overriding moral obligation of all men “the sons” to join the common cause of restoring life to “the fathers,” those who gave them life rather than, as sanctioned by the “theory of progress,” pushing them, figuratively if not literally, into the grave. Certain doctrinal emphases and assumptions link Russian thinkers from widely separated points on the political and ideological spectrum: 1 Russian philosophers were nearly unanimous in dismissing the notorious CartesianHumean “problem of other minds” as a nonproblem. Their convictions about human community and conciliarity sobornost’, whether religious or secular, were too powerful to permit Russian thinkers to raise serious doubts as to whether their moaning and bleeding neighbor was “really” in pain. 2 Most Russian thinkers  the Westernizers were a partial exception  viewed key Western philosophical positions and formulations, from the Socratic “know thyself” to the Cartesian cogito, as overly individualistic and overly intellectualistic, as failing to take into account the wholeness of the human person. 3 Both such anti-Marxists as Herzen with his “philosophy of the act” and Fyodorov with his “projective” common task and the early Russian Marxists were in agreement about the unacceptability of the “Western” dichotomy between thought and action. But when they stressed the unity of theory and practice, a key question remained: Who is to shape this unity? And what is its form? The threadbare MarxistLeninist “philosophy” of the Stalin years paid lip service to the freedom involved in forging such a unity. Stalin in fact imposed crushing restraints upon both thought and action. Since 2, works by and about the previously abused or neglected religious and speculative thinkers of Russia’s past have been widely republished and eagerly discussed. This applies to Fyodorov, Solovyov, Leontyev, Rozanov, Berdyaev, Shestov, and the Husserlian Shpet, among others.  
Ryle, Gilbert, English analytic philosopher known especially for his contributions to the philosophy of mind and his attacks on Cartesianism. His best-known work is the masterpiece The Concept of Mind 9, an attack on what he calls “Cartesian dualism” and a defense of a type of logical behaviorism. This dualism he dubs “the dogma of the Ghost in the Machine,” the Machine being the body, which is physical and publicly observable, and the Ghost being the mind conceived as a private or secret arena in which episodes of sense perception, consciousness, and inner perception take place. A person, then, is a combination of such a mind and a body, with the mind operating the body through exercises of will called “volitions.” Ryle’s attack on this doctrine is both sharply focused and multifarious. He finds that it rests on a category mistake, namely, assimilating statements about mental processes to the same category as statements about physical processes. This is a mistake in the logic of mental statements and mental concepts and leads to the mistaken metaphysical theory that a person is composed of two separate and distinct though somehow related entities, a mind and a body. It is true that statements about the physical are statements about things and their changes. But statements about the mental are not, and in particular are not about a thing called “the mind.” These two types of statements do not belong to the same category. To show this, Ryle deploys a variety of arguments, including arguments alleging the impossibility of causal relations between mind and body and arguments alleging vicious infinite regresses. To develop his positive view on the nature of mind, Ryle studies the uses and hence the logic of mental terms and finds that mental statements tell us that the person performs observable actions in certain ways and has a disposition to perform other observable actions in specifiable circumstances. For example, to do something intelligently is to do something physical in a certain way and to adjust one’s behavior to the circumstances, not, as the dogma of the Ghost in the Machine would have it, to perform two actions, one of which is a mental action of thinking that eventually causes a separate physical action. Ryle buttresses this position with many acute and subtle analyses of the uses of mental terms. Much of Ryle’s other work concerns philosophical methodology, sustaining the thesis which is the backbone of The Concept of Mind that philosophical problems and doctrines often arise from conceptual confusion, i.e., from mistakes about the logic of language. Important writings in this vein include the influential article “Systematically Misleading Expressions” and the book Dilemmas 4. Ryle was also interested in Grecian philosophy throughout his life, and his last major work, Plato’s Progress, puts forward novel hypotheses about changes in Plato’s views, the role of the Academy, the purposes and uses of Plato’s dialogues, and Plato’s relations with the rulers of Syracuse. 
Saadiah Gaon 882942, Jewish exegete, philosopher, liturgist, grammarian, and lexicographer. Born in the Fayyum in Egypt, Saadiah wrote his first Hebrew dictionary by age twenty. He removed to Tiberias, probably fleeing the backlash of his polemic against the Karaite biblicist, anti-Talmudic sect. There he mastered the inductive techniques of semantic analysis pioneered by Muslim MuÅtazilites in defending their rationalistic monotheism and voluntaristic theodicy. He learned philologically from the Masoretes and liturgical poets, and philosophically from the MuÅtazilite-influenced Jewish metaphysician Daud al-Muqammif of Raqqa in Iraq, and Isaac Israeli of Qayrawan in Tunisia, a Neoplatonizing physician, with whom the young philosopher attempted a correspondence. But his sense of system, evidenced in his pioneering chronology, prayerbook, and scheme of tropes, and nurtured by Arabic versions of Plato but seemingly not much Aristotle, allowed him to outgrow and outshine his mentors. He came to prominence by successfully defending the traditional Hebrew calendar, using astronomical, mathematical, and rabbinic arguments. Called to Baghdad, he became Gaon Hebrew, ‘Eminence’ or head of the ancient Talmudic academy of Pumpedita, then nearly defunct. His commentaries on rabbinic property law and his letters to Jewish communities as far away as Spain refurbished the authority of the academy, but a controversy with the Exilarch, secular head of Mesopotamian Jewry, led to his deposition and six years in limbo, deprived of his judicial authority. He delved into scientific cosmology, tr. many biblical books into Arabic with philosophic commentaries and thematic introductions, and around 933 completed The Book of Critically Chosen Beliefs and Convictions, the first Jewish philosophical summa. Unusual among medieval works for a lengthy epistemological introduction, its ten Arabic treatises defend and define creation, monotheism, human obligation and virtue, theodicy, natural retribution, resurrection, immortality and recompense, Israel’s redemption, and the good life. Saadiah argues that no single good suffices for human happiness; each in isolation is destructive. The Torah prepares the optimal blend of the appetitive and erotic, procreative, civilizational, ascetic, political, intellectual, pious, and tranquil. Following al-Rhazi d. 925 or 932, Saadiah argues that since destruction always overcomes organization in this world, sufferings will always outweigh pleasures; therefore as in rabbinic and MuÅtazilite theodicy God must be assumed to right the balances in the hereafter. Indeed, justice is the object of creation  not simply that the righteous be rewarded but that all should earn their deserved requital: the very light that is sown for the righteous is the fire that torments the wicked. But if requital and even recompense must be earned, this life is much more than an anteroom. Authenticity becomes a value in itself: the innocent are not told directly that their sufferings are a trial, or their testing would be invalid. Only by enduring their sufferings without interference can they demonstrate the qualities that make them worthy of the highest reward. Movingly reconciled with the Exilarch, Saadiah ended his life as Gaon. His voluntarism, naturalism, and rationalism laid philosophical foundations for Maimonides, and his inductive exegesis became a cornerstone of critical hermeneutics. 
Saint Petersburg paradox, a puzzle about gambling that motivated the distinction between expected return and expected utility. Daniel Bernoulli published it in a St. Petersburg journal in 1738. It concerns a gamble like this: it pays $2 if heads appears on the first toss of a coin, $4 if heads does not appear until the second toss, $8 if heads does not appear until the third toss, and so on. The expected return from the gamble is ½2 ! ¼4 ! 1 /88 ! . . . , or 1 ! 1 ! 1 ! ..., i.e., it is infinite. But no one would pay much for the gamble. So it seems that expected returns do not govern rational preferences. Bernoulli argued that expected utilities govern rational preferences. He also held that the utility of wealth is proportional to the log of the amount of wealth. Given his assumptions, the gamble has finite 808 S    808 expected utility, and should not be preferred to large sums of money. However, a twentieth-century version of the paradox, attributed to Karl Menger, reconstructs the gamble, putting utility payoffs in place of monetary payoffs, so that the new gamble has infinite expected utility. Since no one would trade much utility for the new gamble, it also seems that expected utilities do not govern rational preferences. The resolution of the paradox is under debate. 
Saint-Simon, Comte de, title of Claude-Henri de Rouvroy 17601825,  social reformer. An aristocrat by birth, he initially joined the ranks of the enlightened and liberal bourgeoisie. His Newtonian Letters to an Inhabitant of Geneva 1803 and Introduction to Scientific Works of the Nineteenth Century 1808 championed Condorcet’s vision of scientific and technological progress. With Auguste Comte, he shared a positivistic philosophy of history: the triumph of science over metaphysics. Written in wartime, The Reorganization of European Society 1814 urged the creation of a European parliamentary system to secure peace and unity. Having moved from scientism to pacifism, Saint-Simon moved further to industrialism. In 1817, under the influence of two theocratic thinkers, de Maistre and Bonald, Saint-Simon turned away from classical economic liberalism and repudiated laissez-faire capitalism. The Industrial System 1820 drafts the program for a hierarchical state, a technocratic society, and a planned economy. The industrial society of the future is based on the principles of productivity and cooperation and led by a rational and efficient class, the industrialists artists, scientists, and technicians. He argued that the association of positivism with unselfishness, of techniques of rational production with social solidarity and interdependency, would remedy the plight of the poor. Industrialism prefigures socialism, and socialism paves the way for the rule of the law of love, the eschatological age of The New Christianity 1825. This utopian treatise, which reveals Saint-Simon’s alternative to reactionary Catholicism and Protestant individualism, became the Bible of the Saint-Simonians, a sectarian school of utopian socialists.                    
Same -- Sameness -- Griceian – One of Grice’s favourite essays ever was Wiggins’s “Sameness and substance” -- Griceian différance, a  coinage deployed by Derrida in De la Grammatologie 7, where he defines it as “an economic concept designating the production of differing/deferring.” Différance is polysemic, but its key function is to name the prime condition for the functioning of all language and thought: differing, the differentiation of signs from each other that allows us to differentiate things from each other. Deferring is the process by which signs refer to each other, thus constituting the self-reference essential to language, without ever capturing the being or presence that is the transcendent entity toward which it is aimed. Without the concepts or idealities generated by the iteration of signs, we could never identify a dog as a dog, could not perceive a dog or any other thing as such. Perception presupposes language, which, in turn, presupposes the ideality generated by the repetition of signs. Thus there can be no perceptual origin for language; language depends upon an “original repetition,” a deliberate oxymoron that Derrida employs to signal the impossibility of conceiving an origin of language from within the linguistic framework in which we find ourselves. Différance is the condition for language, and language is the condition for experience: whatever meaning we may find in the world is attributed to the differing/ deferring play of signifiers. The notion of différance and the correlative thesis that meaning is language-dependent have been appropriated by radical thinkers in the attempt to demonstrate that political inequalities are grounded in nothing other than the conventions of sign systems governing differing cultures.
Sanches, F. c.15511623, Portuguese born philosopher and physician. Raised in southern France, he took his medical degree at the  of Montpellier. After a decade of medical practice he was professor of philosophy at the  of Toulouse and later professor of medicine there. His most important work, Quod nihil sciturThat Nothing Is Known, 1581, is a classic of skeptical argumentation. Written at the same time that his cousin, Montaigne, wrote the “Apology for Raimund Sebond,” it devastatingly criticized the Aristotelian theory of knowledge. He began by declaring that he did not even know if he knew nothing. Then he examined the Aristotelian view that science consists of certain knowledge gained by demonstrations from true definitions. First of all, we do not possess such definitions, since all our definitions are just arbitrary names of things. The Aristotelian theory of demonstration is useless, since in syllogistic reasoning the conclusion has to be part of the evidence for the premises. E.g., how can one know that all men are mortal unless one knows that Socrates is mortal? Also, anything can be proven by syllogistic reasoning if one chooses the right premises. This does not produce real knowledge. Further we cannot know anything through its causes, since one would have to know the causes of the causes, and the causes of these, ad infinitum. Sanches also attacked the Platonic theory of knowledge, since mathematical knowledge is about ideal rather than real objects. Mathematics is only hypothetical. Its relevance to experience is not known. True science would consist of perfect knowledge of a thing. Each particular would be understood in and by itself. Such knowledge can be attained only by God. We cannot study objects one by one, since they are all interrelated and interconnected. Our faculties are also not reliable enough. Hence genuine knowledge cannot be attained by humans. What we can do, using “scientific method” a term first used by Sanches, is gather careful empirical information and make cautious judgments about it. His views were well known in the seventeenth century, and may have inspired the “mitigated skepticism” of Gassendi and others. 
sanction, anything whose function is to penalize or reward. It is useful to distinguish between social sanctions, legal sanctions, internal sanctions, and religious sanctions. Social sanctions are extralegal pressures exerted upon the agent by others. For example, others might distrust us, ostracize us, or even physically attack us, if we behave in certain ways. Legal sanctions include corporal punishment, imprisonment, fines, withdrawal of the legal rights to run a business or to leave the area, and other penalties. Internal sanctions may include not only guilt feelings but also the sympathetic pleasures of helping others or the gratified conscience of doing right. Divine sanctions, if there are any, are rewards or punishments given to us by a god while we are alive or after we die. There are important philosophical questions concerning sanctions. Should law be defined as the rules the breaking of which elicits punishment by the state? Could there be a moral duty to behave in a given way if there were no social sanctions concerning such behavior? If not, then a conventionalist account of moral duty seems unavoidable. And, to what extent does the combined effect of external and internal sanctions make rational egoism or prudence or self-interest coincide with morality?
Santayana, G., philosopher and writer. Born in Spain, he arrived in the United States as a child, received his education at Harvard, and rose to professor of philosophy there. He first came to prominence for his view, developed in The Sense of Beauty 6, that beauty is objectified pleasure. His The Life of Reason 5 vols., 5, a celebrated expression of his naturalistic vision, traces human creativity in ordinary life, society, art, religion, and science. He denied that his philosophy ever changed, but the mature expression of his thought, in Skepticism and Animal Faith 3 and The Realms of Being 4 vols., 740, is deliberately ontological and lacks the phenomenological emphasis of the earlier work. Human beings, according to Santayana, are animals in a material world contingent to the core. Reflection must take as its primary datum human action aimed at eating and fleeing. The philosophy of animal faith consists of disentangling the beliefs tacit in such actions and yields a realism concerning both the objects of immediate consciousness and the objects of belief. Knowledge is true belief rendered in symbolic terms. As symbolism, it constitutes the hauntingly beautiful worlds of the senses, poetry, and religion; as knowledge, it guides and is tested by successful action. Santayana had been taught by William James, and his insistence on the primacy of action suggests a close similarity to the views of Dewey. He is, nevertheless, not a pragmatist in any ordinary sense: he views nature as the fully formed arena of human activity and experience as a flow of isolated, private sentience in this alien world. His deepest sympathy is with Aristotle, though he agrees with Plato about the mind-independent existence of Forms and with Schopenhauer about the dimness of human prospects. His mature four-realm ontology turns on the distinction between essence and matter. Essences are forms of definiteness. They are infinite in number and encompass everything possible. Their eternity makes them causally inefficacious: as possibilities, they cannot accomplish their own actualization. Matter, a surd and formless force, generates the physical universe by selecting essences for embodiment. Truth is the realm of being created by the intersection of matter and form: it is the eternal record of essences that have been, are being, and will be given actuality in the history of the world. Spirit or consciousness cannot be reduced to the motions of the physical organism that give rise to it. It is constituted by a sequence of acts or intuitions whose objects are essences but whose time-spanning, synthetic nature renders them impotent. Organic selectivity is the source of values. Accordingly, the good of each organism is a function of its nature. Santayana simply accepts the fact that some of these goods are incommensurable and the tragic reality that they may be incompatible, as well. Under favorable circumstances, a life of reason or of maximal harmonized satisfactions is possible for a while. The finest achievement of human beings, however, is the spiritual life in which we overcome animal partiality and thus all valuation in order to enjoy the intuition of eternal essences. Santayana identifies such spirituality with the best that religion and sound philosophy can offer. It does not help us escape finitude and death, but enables us in this short life to transcend care and to intuit the eternal. Santayana’s exquisite vision has gained him many admirers but few followers. His system is a self-consistent and sophisticated synthesis of elements, such as materialism and Platonism, that have hitherto been thought impossible to reconcile. His masterful writing makes his books instructive and pleasurable, even if many of his characteristic views engender resistance among philosophers.
Sapir-Whorf hypothesis, broadly, the claim that one’s perception, thought, and behavior are influenced by one’s language. The hypothesis was named after Benjamin Lee Whorf 7 1 and his teacher Edward Sapir 4 9. We may discern different versions of this claim by distinguishing degrees of linguistic influence, the highest of which is complete and unalterable determination of the fundamental structures of perception, thought, and behavior. In the most radical form, the hypothesis says that one’s reality is constructed by one’s language and that differently structured languages give rise to different realities, which are incommensurable. 
Sartre, J.-P. philosopher and writer, the leading advocate of existentialism during the years following World War II. The heart of his philosophy was the precious notion of freedom and its concomitant sense of personal responsibility. He insisted, in an interview a few years before his death, that he never ceased to believe that “in the end one is always responsible for what is made of one,” only a slight revision of his earlier, bolder slogan, “man makes himself.” To be sure, as a student of Hegel, Marx, Husserl, and Heidegger  and because of his own physical frailty and the tragedies of the war  Sartre had to be well aware of the many constraints and obstacles to human freedom, but as a Cartesian, he never deviated from Descartes’s classical portrait of human consciousness as free and distinct from the physical universe it inhabits. One is never free of one’s “situation,” Sartre tells us, though one is always free to deny “negate” that situation and to try to change it. To be human, to be conscious, is to be free to imagine, free to choose, and responsible for one’s lot in life. As a student, Sartre was fascinated by Husserl’s new philosophical method, phenomenology. His first essays were direct responses to Husserl and applications of the phenomenological method. His essay on The Imagination in 6 established the groundwork for much of what was to follow: the celebration of our remarkable freedom to imagine the world other than it is and following Kant the way that this ability informs all of our experience. In The Transcendence of the Ego 7 he reconsidered Husserl’s central idea of a “phenomenological reduction” the idea of examining the essential structures of consciousness as such and argued following Heidegger that one cannot examine consciousness without at the same time recognizing the reality of actual objects in the world. In other words, there can be no such “reduction.” In his novel Nausea 8, Sartre made this point in a protracted example: his bored and often nauseated narrator confronts a gnarled chestnut tree in the park and recognizes with a visceral shock that its presence is simply given and utterly irreducible. In The Transcendence of the Ego Sartre also reconsiders the notion of the self, which Husserl and so many earlier philosophers had identified with consciousness. But the self, Sartre argues, is not “in” consciousness, much less identical to it. The self is out there “in the world, like the self of another.” In other words, the self is an ongoing project in the world with other people; it is not simply self-awareness or self-consciousness as such “I think, therefore I am”. This separation of self and consciousness and the rejection of the self as simply self-consciousness provide the framework for Sartre’s greatest philosophical treatise, L’être et le néant Being and Nothingness, 3. Its structure is unabashedly Cartesian, consciousness “being-for-itself” or pour soi on the one side, the existence of mere things “being-in-itself” or en soi on the other. The phraseology comes from Hegel. But Sartre does not fall into the Cartesian trap of designating these two types of being as separate “substances.” Instead, Sartre describes consciousness as “nothing’  “not a thing” but an activity, “a wind blowing from nowhere toward the world.” Sartre often resorts to visceral metaphors when developing this theme e.g., “a worm coiled in the heart of being”, but much of what he is arguing is familiar to philosophical readers in the more metaphor-free work of Kant, who also warned against the follies “paralogisms” of understanding consciousness as itself a possible object of consciousness rather than as the activity of constituting the objects of consciousness. As the lens of a camera can never see itself  and in a mirror only sees a reflection of itself  consciousness can never view itself as consciousness and is only aware of itself  “for itself”  through its experience of objects. Ontologically, one might think of “nothingness” as “no-thing-ness,” a much less outrageous suggestion than those that would make it an odd sort of a thing. It is through the nothingness of consciousness and its activities that negation comes into the world, our ability to imagine the world other than it is and the inescapable necessity of imagining ourselves other than we seem to be. And because consciousness is nothingness, it is not subject to the rules of causality. Central to the argument of L’être et le néant and Sartre’s insistence on the primacy of human freedom is his insistence that consciousness cannot be understood in causal terms. It is always self-determining and, as such, “it always is what it is not, and is not what it is”  a playful paradox that refers to the fact that we are always in the process of choosing. Consciousness is “nothing,” but the self is always on its way to being something. Throughout our lives we accumulate a body of facts that are true of us  our “facticity”  but during our lives we remain free to envision new possibilities, to reform ourselves and to reinterpret our facticity in the light of new projects and ambitions  our “transcendence.” This indeterminacy means that we can never be anything, and when we try to establish ourselves as something particular  whether a social role policeman, waiter or a certain character shy, intellectual, cowardly  we are in “bad faith.” Bad faith is erroneously viewing ourselves as something fixed and settled Sartre utterly rejects Freud and his theory of the unconscious determination of our personalities and behavior, but it is also bad faith to view oneself as a being of infinite possibilities and ignore the always restrictive facts and circumstances within which all choices must be made. On the one hand, we are always trying to define ourselves; on the other hand we are always free to break away from what we are, and always responsible for what we have made of ourselves. But there is no easy resolution or “balance” between facticity and freedom, rather a kind of dialectic or tension. The result is our frustrated desire to be God, to be both in-itself and for-itself. But this is not so much blasphemy as an expression of despair, a form of ontological original sin, the impossibility of being both free and what we want to be. Life for Sartre is yet more complicated. There is a third basic ontological category, on a par with the being-in-itself and being-for-itself and not derivative of them. He calls it “being-for-others.” To say that it is not derivative is to insist that our knowledge of others is not inferred, e.g. by some argument by analogy, from the behavior of others, and we ourselves are not wholly constituted by our self-determinations and the facts about us. Sartre gives us a brutal but familiar everyday example of our experience of being-for-others in what he calls “the look” le regard. Someone catches us “in the act” of doing something humiliating, and we find ourselves defining ourselves probably also resisting that definition in their terms. In his Saint Genet 3, Sartre describes such a conversion of the ten-year-old Jean Genet into a thief. So, too, we tend to “catch” one another in the judgments we make and define one another in terms that are often unflattering. But these judgments become an essential and ineluctible ingredient in our sense of ourselves, and they too lead to conflicts indeed, conflicts so basic and so frustrating that in his play Huis clos No Exit, 3 Sartre has one of his characters utter the famous line, “Hell is other people.” In his later works, notably his Critique of Dialectical Reason 859, Sartre turned increasingly to politics and, in particular, toward a defense of Marxism on existentialist principles. This entailed rejecting materialist determinism, but it also required a new sense of solidarity or what Sartre had wistfully called, following Heidegger, Mitsein or “being with others”. Thus in his later work he struggled to find a way of overcoming the conflict and insularity or the rather “bourgeois” consciousness he had described in Being and Nothingness. Not surprisingly given his constant political activities he found it in revolutionary engagement. Consonant with his rejection of bourgeois selfhood, Sartre turned down the 4 Nobel prize for literature. 
Satisfactoriness-condition, a state of affairs or “way things are,” most commonly referred to in relation to something that implies or is implied by it. Let p, q, and r be schematic letters for declarative sentences; and let P, Q, and R be corresponding nominalizations; e.g., if p is ‘snow is white’, then P would be ‘snow’s being white’. P can be a necessary or sufficient condition of Q in any of several senses. In the weakest sense P is a sufficient condition of Q iff if and only if: if p then q or if P is actual then Q is actual  where the conditional is to be read as “material,” as amounting merely to not-p & not-q. At the same time Q is a necessary condition of P iff: if not-q then not-p. It follows that P is a sufficient condition of Q iff Q is a necessary condition of P. Stronger senses of sufficiency and of necessity are definable, in terms of this basic sense, as follows: P is nomologically sufficient necessary for Q iff it follows from the laws of nature, but not without them, that if p then q that if q then p. P is alethically or metaphysically sufficient necessary for Q iff it is alethically or metaphysically necessary that if p then q that if q then p. However, it is perhaps most common of all to interpret conditions in terms of subjunctive conditionals, in such a way that P is a sufficient condition of Q iff P would not occur unless Q occurred, or: if P should occur, Q would; and P is a necessary condition of Q iff Q would not occur unless P occurred, or: if Q should occur, P would.  -- satisfaction, an auxiliary semantic notion introduced by Tarski in order to give a recursive definition of truth for languages containing quantifiers. Intuitively, the satisfaction relation holds between formulas containing free variables such as ‘Buildingx & Tallx’ and objects or sequences of objects such as the Empire State Building if and only if the formula “holds of” or “applies to” the objects. Thus, ‘Buildingx & Tallx’, is satisfied by all and only tall buildings, and ‘-Tallx1 & Tallerx1, x2’ is satisfied by any pair of objects in which the first object corresponding to ‘x1’ is not tall, but nonetheless taller than the second corresponding to ‘x2’. Satisfaction is needed when defining truth for languages with sentences built from formulas containing free variables, because the notions of truth and falsity do not apply to these “open” formulas. Thus, we cannot characterize the truth of the sentences ‘Dx Buildingx & Tallx’ ‘Some building is tall’ in terms of the truth or falsity of the open formula ‘Buildingx & Tallx’, since the latter is neither true nor false. But note that the sentence is true if and only if the formula is satisfied by some object. Since we can give a recursive definition of the notion of satisfaction for possibly open formulas, this enables us to use this auxiliary notion in defining truth.  -- satisfiable, having a common model, a structure in which all the sentences in the set are true; said of a set of sentences. In modern logic, satisfiability is the semantic analogue of the syntactic, proof-theoretic notion of consistency, the unprovability of any explicit contradiction. The completeness theorem for first-order logic, that all valid sentences are provable, can be formulated in terms of satisfiability: syntactic consistency implies satisfiability. This theorem does not necessarily hold for extensions of first-order logic. For any sound proof system for secondorder logic there will be an unsatisfiable set of sentences without there being a formal derivation of a contradiction from the set. This follows from Gödel’s incompleteness theorem. One of the central results of model theory for first-order logic concerns satisfiability: the compactness theorem, due to Gödel in 6, says that if every finite subset of a set of sentences is satisfiable the set itself is satisfiable. It follows immediately from his completeness theorem for first-order logic, and gives a powerful method to prove the consistency of a set of sentences. 
satisfice, to choose or do the good enough rather than the most or the best. ‘Satisfice’, an obsolete variant of ‘satisfy’, has been adopted by economist Herbert Simon and others to designate nonoptimizing choice or action. According to some economists, limitations of time or information may make it impossible or inadvisable for an individual, firm, or state body to attempt to maximize pleasure, profits, market share, revenues, or some other desired result, and satisficing with respect to such results is then said to be rational, albeit less than ideally rational. Although many orthodox economists think that choice can and always should be conceived in maximizing or optimizing terms, satisficing models have been proposed in economics, evolutionary biology, and philosophy. Biologists have sometimes conceived evolutionary change as largely consisting of “good enough” or satisficing adaptations to environmental pressures rather than as proceeding through optimal adjustments to such pressures, but in philosophy, the most frequent recent use of the idea of satisficing has been in ethics and rational choice theory. Economists typically regard satisficing as acceptable only where there are unwanted constraints on decision making; but it is also possible to see satisficing as entirely acceptable in itself, and in the field of ethics, it has recently been argued that there may be nothing remiss about moral satisficing, e.g., giving a good amount to charity, but less than one could give. It is possible to formulate satisficing forms of utilitarianism on which actions are morally right even if they contribute merely positively and/or in some large way, rather than maximally, to overall net human happiness. Bentham’s original formulation of the principle of utility and Popper’s negative utilitarianism are both examples of satisficing utilitarianism in this sense  and it should be noted that satisficing utilitarianism has the putative advantage over optimizing forms of allowing for supererogatory degrees of moral excellence. Moreover, any moral view that treats moral satisficing as permissible makes room for moral supererogation in cases where one optimally goes beyond the merely acceptable. But since moral satisficing is less than optimal moral behavior, but may be more meritorious than certain behavior that in the same circumstances would be merely permissible, some moral satisficing may actually count as supererogatory. In recent work on rational individual choice, some philosophers have argued that satisficing may often be acceptable in itself, rather than merely second-best. Even Simon allows that an entrepreneur may simply seek a satisfactory return on investment or share of the market, rather than a maximum under one of these headings. But a number of philosophers have made the further claim that we may sometimes, without irrationality, turn down the readily available better in the light of the goodness and sufficiency of what we already have or are enjoying. Independently of the costs of taking a second dessert, a person may be entirely satisfied with what she has eaten and, though willing to admit she would enjoy that extra dessert, turn it down, saying “I’m just fine as I am.” Whether such examples really involve an acceptable rejection of the momentarily better for the good enough has been disputed. However, some philosophers have gone on to say, even more strongly, that satisficing can sometimes be rationally required and optimizing rationally unacceptable. To keep on seeking pleasure from food or sex without ever being thoroughly satisfied with what one has enjoyed can seem compulsive and as such less than rational. If one is truly rational about such goods, one isn’t insatiable: at some point one has had enough and doesn’t want more, even though one could obtain further pleasure. The idea that satisficing is sometimes a requirement of practical reason is reminiscent of Aristotle’s view that moderation is inherently reasonable  rather than just a necessary means to later enjoyments and the avoidance of later pain or illness, which is the way the Epicureans conceived moderation. But perhaps the greatest advocate of satisficing is Plato, who argues in the Philebus that there must be measure or limit to our desire for pleasure in order for pleasure to count as a good thing for us. Insatiably to seek and obtain pleasure from a given source is to gain nothing good from it. And according to such a view, satisficing moderation is a necessary precondition of human good and flourishing, rather than merely being a rational restraint on the accumulation of independently conceived personal good or well-being.
Saussure, Ferdinand de, founder of structuralism. His work in semiotics is a major influence on the later development of  structuralist philosophy, as well as structural anthropology, structuralist literary criticism, and modern semiology. He pursued studies in linguistics largely under Georg Curtius at the  of Leipzig, along with such future Junggrammatiker neogrammarians as Leskien and Brugmann. Following the publication of his important Mémoire sur le système primitif des voyelles dans les langues indo-européenes 1879, Saussure left for Paris, where he associated himself with the Société Linguistique and taught comparative grammar. In 1, he returned to Switzerland to teach Sanskrit, comparative grammar, and general linguistics at the  of Geneva. His major work, the Course in General Linguistics 6, was assembled from students’ notes and his original lecture outlines after his death. The Course in General Linguistics argued against the prevalent historical and comparative philological approaches to language by advancing what Saussure termed a scientific model for linguistics, one borrowed in part from Durkheim. Such a model would take the “social fact” of language la langue as its object, and distinguish this from the variety of individual speech events la parole, as well as from the collectivity of speech events and grammatical rules that form the general historical body of language as such le langage. Thus, by separating out the unique and accidental elements of practiced speech, Saussure distinguished language la langue as the objective set of linguistic elements and rules that, taken as a system, governs the language use specific to a given community. It was the systematic coherency and generality of language, so conceived, that inclined Saussure to approach linguistics principally in terms of its static or synchronic dimension, rather than its historical or diachronic dimension. For Saussure, the system of language is a “treasury” or “depository” of signs, and the basic unit of the linguistic sign is itself two-sided, having both a phonemic component “the signifier” and a semantic component “the signified”. He terms the former the “acoustical” or “sound” image  which may, in turn, be represented graphically, in writing  and the latter the “concept” or “meaning.” Saussure construes the signifier to be a representation of linguistic sounds in the imagination or memory, i.e., a “psychological phenomenon,” one that corresponds to a specifiable range of material phonetic sounds. Its distinctive property consists in its being readily differentiated from other signifiers in the particular language. It is the function of each signifier, as a distinct entity, to convey a particular meaning  or “signified” concept  and this is fixed purely by conventional association. While the relation between the signifier and signified results in what Saussure terms the “positive” fact of the sign, the sign ultimately derives its linguistic value its precise descriptive determination from its position in the system of language as a whole, i.e., within the paradigmatic and syntagmatic relations that structurally and functionally differentiate it. Signifiers are differentially identified; signifiers are arbitrarily associated with their respective signified concepts; and signs assume the determination they do only through their configuration within the system of language as a whole: these facts enabled Saussure to claim that language is largely to be understood as a closed formal system of differences, and that the study of language would be principally governed by its autonomous structural determinations. So conceived, linguistics would be but a part of the study of social sign systems in general, namely, the broader science of what Saussure termed semiology. Saussure’s insights would be taken up by the subsequent Geneva, Prague, and Copenhagen schools of linguistics and by the Russian formalists, and would be further developed by the structuralists in France and elsewhere, as well as by recent semiological approaches to literary criticism, social anthropology, and psychoanalysis.
scepticism: For some reason, Grice was irritated by Wood’s sobriquet of Russell as a “passionate sceptic”: ‘an oxymoron.” The most specific essay by Grice on this is an essay he kept after many years, that he delivered back in the day at Oxford, entitled, “Scepticism and common sense.” Both were traditional topics at Oxford at the time. Typically, as in the Oxonian manner, he chose two authors, New-World’s Malcolm’s treatment of Old-World Moore, and brings in Austin’s ‘ordinary-language’ into the bargain. He also brings in his own obsession with what an emissor communicates. In this case, the “p” is the philosopher’s sceptical proposition, such as “That pillar box is red.” Grice thinks ‘dogmatic’ is the opposite of ‘sceptic,’ and he is right! Liddell and Scott have “δόγμα,” from “δοκέω,” and which they render as “that which seems to one, opinion or belief;” Pl.R.538c; “δ. πόλεως κοινόν;” esp. of philosophical doctrines, Epicur.Nat.14.7; “notion,” Pl.Tht.158d; “decision, judgement,” Pl. Lg.926d; (pl.); public decree, ordinance,  esp. of Roman Senatus-consulta, “δ. συγκλήτου”  “δ. τῆς βουλῆς” So note that there is nothing ‘dogmatic’ about ‘dogma,’ as it derives from ‘dokeo,’ and is rendered as ‘that which seems to one.’ So the keyword should be later Grecian, and in the adjectival ‘dogmatic.’ Liddell and Scott have “δογματικός,” which they render as “of or for doctrines, didactic, [διάλογοι] Quint.Inst.2.15.26, and “of persons, δ. ἰατροί,” “physicians who go by general principles,” opp. “ἐμπειρικοί and μεθοδικοί,” Dsc.Ther.Praef., Gal.1.65; in Philosophy, S.E.M.7.1, D.L.9.70, etc.; “δ. ὑπολήψεις” Id.9.83; “δ. φιλοσοφία” S.E. P.1.4. Adv. “-κῶς” D.L.9.74, S.E.P.1.197: Comp. “-κώτερον” Id.M. 6.4. Why is Grice interested in scepticism. His initial concern, the one that Austin would authorize, relates to ‘ordinary language.’ What if ‘ordinary language’ embraces scepticism? What if it doesn’t? Strawso notes that the world of ordinary language is a world of things, causes, and stuff. None of the good stuff for the sceptic. what is Grice’s answer to the sceptic’s implicature? The sceptic’s implicatum is a topic that always fascinated Girce. While Grice groups two essays as dealing with one single theme, strictly, only this or that philosopher’s paradox (not all) may count as sceptical. This or that philosopher’s paradox may well not be sceptical at all but rather dogmatic. In fact, Grice defines philosophers paradox as anything repugnant to common sense, shocking, or extravagant ‒ to Malcolms ears, that is! While it is, strictly, slightly odd to quote this as a given date just because, by a stroke of the pen, Grice writes that date in the Harvard volume, we will follow his charming practice. This is vintage Grice. Grice always takes the sceptics challenge seriously, as any serious philosopher should. Grices takes both the sceptics explicatum and the scepticss implicatum as self-defeating, as a very affront to our idea of rationality, conversational or other. V: Conversations with a sceptic: Can he be slightly more conversational helpful? Hume’ sceptical attack is partial, and targeted only towards practical reason, though.  Yet, for Grice, reason is one. You cannot really attack practical or buletic reason without attacking theoretical or doxastic reason. There is such thing as a general rational acceptance, to use Grice’s term, that the sceptic is getting at. Grice likes to play with the idea that ultimately every syllogism is buletic or practical. If, say, a syllogism by Eddington looks doxastic, that is because Eddington cares to omit the practical tail, as Grice puts it. And Eddington is not even a philosopher, they say. Grice is here concerned with a Cantabrigian topic popularised by Moore. As Grice recollects, Some like Witters, but Moore’s my man. Unlike Cambridge analysts such as Moore, Grice sees himself as a linguistic-turn Oxonian analyst. So it is only natural that Grice would connect time-honoured scepticism of Pyrrhos vintage, and common sense with ordinary language, so mis-called, the elephant in Grices room. Lewis and Short have “σκέψις,” f. σκέπτομαι, which they render as “viewing, perception by the senses, ἡ διὰ τῶν ὀμμάτων ςκέψις, Pl. Phd. 83a; observation of auguries; also as examination, speculation, consideration, τὸ εὕρημα πολλῆς σκέψιος; βραχείας ςκέψις; ϝέμειν ςκέψις take thought of a thing; ἐνθεὶς τῇ τέχνῃ ςκέψις; ςκέψις ποιεῖσθαι; ςκέψις προβέβληκας; ςκέψις λόγων; ςκέψις περί τινος inquiry into, speculation on a thing; περί τι Id. Lg. 636d;ἐπὶ σκέψιν τινὸς ἐλθεῖν; speculation, inquiry,ταῦτα ἐξωτερικωτέρας ἐστὶ σκέψεως; ἔξω τῆς νῦν ςκέψεως; οὐκ οἰκεῖα τῆς παρούσης ςκέψις; also hesitation, doubt, esp. of the Sceptic or Pyrthonic philosophers, AP 7. 576 (Jul.); the Sceptic philosophy, S. E. P. 1.5; οἱ ἀπὸ τῆς ςκέψεως, the Sceptics, ib. 229. in politics, resolution, decree, συνεδρίον Hdn. 4.3.9, cf. Poll. 6.178. If scepticism attacks common sense and fails, Grice seems to be implicating, that ordinary language philosophy is a good antidote to scepticism. Since what language other than ordinary language does common sense speak? Well, strictly, common sense doesnt speak. The man in the street does. Grice addresses this topic in a Mooreian way in a later essay, also repr. in Studies, Moore and philosophers paradoxes, repr. in Studies. As with his earlier Common sense and scepticism, Grice tackles Moores and Malcolms claim that ordinary language, so-called, solves a few of philosophers paradoxes. Philosopher is Grices witty way to generalise over your common-or-garden, any, philosopher, especially of the type he found eccentric, the sceptic included. Grice finds this or that problem in this overarching Cantabrigian manoeuvre, as over-simplifying a pretty convoluted terrain. While he cherishes Austins Some like Witters, but Moores MY man! Grice finds Moore too Cantabrigian to his taste. While an Oxonian thoroughbred, Grice is a bit like Austin, Some like Witters, but Moores my man, with this or that caveat. Again, as with his treatment of Descartes or Locke, Grice is hardly interested in finding out what Moore really means. He is a philosopher, not a historian of philosophy, and he knows it. While Grice agrees with Austins implicature that Moore goes well above Witters, if that is the expression (even if some like him), we should find the Oxonian equivalent to Moore. Grice would not Names Ryle, since he sees him, and his followers, almost every day. There is something apostolic about Moore that Grice enjoys, which is just as well, seeing that Moore is one of the twelve. Grice found it amusing that the members of The Conversazione Society would still be nickNamesd apostles when their number exceeded the initial 12. Grice spends some time exploring what Malcolm, a follower of Witters, which does not help, as it were, has to say about Moore in connection with that particularly Oxonian turn of phrase, such as ordinary language is. For Malcolms Moore, a paradox by philosopher [sic], including the sceptic, arises when philosopher [sic], including the sceptic, fails to abide by the dictates of ordinary language. It might merit some exploration if Moore’s defence of common sense is against: the sceptic may be one, but also the idealist. Moore the realist, armed with ordinary language attacks the idealists claim. The idealist is sceptical of the realists claim. But empiricist idealism (Bradley) has at Oxford as good pedigree as empiricist realism (Cook Wilson). Malcolm’s simplifications infuriate Grice, and ordinary language has little to offer in the defense of common sense realism against sceptical empiricist idealism. Surely the ordinary man says ridiculous, or silly, as Russell prefers, things, such as Smith is lucky, Departed spirits walk along this road on their way to Paradise, I know there are infinite stars, and I wish I were Napoleon, or I wish that I had been Napoleon, which does not mean that the utterer wishes that he were like Napoleon, but that he wishes that he had lived not in the his century but in the XVIIIth century. Grice is being specific about this. It is true that an ordinary use of language, as Malcolm suggests, cannot be self-contradictory unless the ordinary use of language is defined by stipulation as not self-contradictory, in which case an appeal to ordinary language becomes useless against this or that paradox by Philosopher. I wish that I had been Napoleon seems to involve nothing but an ordinary use of language by any standard but that of freedom from absurdity. I wish that I had been Napoleon is not, as far as Grice can see, philosophical, but something which may have been said and meant by numbers of ordinary people. Yet, I wish that I had been Napoleon is open to the suspicion of self-contradictoriness, absurdity, or some other kind of meaninglessness. And in this context suspicion is all Grice needs. By uttering I wish that I had been Napoleon U hardly means the same as he would if he uttered I wish I were like Napoleon. I wish that I had been Napoleon is suspiciously self-contradictory, absurd, or meaningless, if, as uttered by an utterer in a century other than the XVIIIth century, say, the utterer is understood as expressing the proposition that the utterer wishes that he had lived in the XVIIIth century, and not in his century, in which case he-1 wishes that he had not been him-1? But blame it on the buletic. That Moore himself is not too happy with Malcolms criticism can be witnessed by a cursory glimpse at hi reply to Malcolm. Grice is totally against this view that Malcolm ascribes to Moore as a view that is too broad to even claim to be true. Grices implicature is that Malcolm is appealing to Oxonian turns of phrase, such as ordinary language, but not taking proper Oxonian care in clarifying the nuances and stuff in dealing with, admittedly, a non-Oxonian philosopher such as Moore. When dealing with Moore, Grice is not necessarily concerned with scepticism. Time is unreal, e.g. is hardly a sceptic utterance. Yet Grice lists it as one of Philosophers paradoxes. So, there are various to consider here. Grice would start with common sense. That is what he does when he reprints this essay in WOW, with his attending note in both the preface and the Retrospective epilogue on how he organizes the themes and strands. Common sense is one keyword there, with its attending realism. Scepticism is another, with its attending empiricist idealism. It is intriguing that in the first two essays opening Grices explorations in semantics and metaphysics it seems its Malcolm, rather than the dryer Moore, who interests Grice most. While he would provide exegeses of this or that dictum by Moore, and indeed, Moore’s response to Malcolm, Grice seems to be more concerned with applications of his own views. Notably in Philosophers paradoxes. The fatal objection Grice finds for the paradox propounder (not necessarily a sceptic, although a sceptic may be one of the paradox propounders) significantly rests on Grices reductive analysis of meaning that  as ascribed to this or that utterer U. Grice elaborates on circumstances that hell later take up in the Retrospective epilogue. I find myself not understanding what I mean is dubiously acceptable. If meaning, Grice claims, is about an utterer U intending to get his addressee A to believe that U ψ-s that p, U must think there is a good chance that A will recognise what he is supposed to believe, by, perhaps, being aware of the Us practice or by a supplementary explanation which might come from U. In which case, U should not be meaning what Malcolm claims U might mean. No utterer should intend his addressee to believe what is conceptually impossible, or incoherent, or blatantly false (Charles Is decapitation willed Charles Is death.), unless you are Queen in Through the Looking Glass. I believe five impossible things before breakfast, and I hope youll soon get the proper training to follow suit. Cf. Tertulian, Credo, quia absurdum est. Admittedly, Grice edits the Philosophers paradoxes essay. It is only Grices final objection which is repr. in WOW, even if he provides a good detailed summary of the previous sections. Grice appeals to Moore on later occasions. In Causal theory, Grice lists, as a third philosophical mistake, the opinion by Malcolm that Moore did not know how to use knowin a sentence. Grice brings up the same example again in Prolegomena. The use of factive know of Moore may well be a misuse. While at Madison, Wisconsin, Moore lectures at a hall eccentrically-built with indirect lighting simulating sun rays, Moore infamously utters, I know that there is a window behind that curtain, when there is not. But it is not the factiveness Grice is aiming at, but the otiosity Malcolm misdescribes in the true, if baffling, I know that I have two hands. In Retrospective epilogue, Grice uses M to abbreviate Moore’s fairy godmother – along with G (Grice), A (Austin), R (Ryle) and Q (Quine)! One simple way to approach Grices quandary with Malcolm’s quandary with Moore is then to focus on know. How can Malcolm claim that Moore is guilty of misusing know? The most extensive exploration by Grice on know is in Grices third James lecture (but cf. his seminar on Knowledge and belief, and his remarks on some of our beliefs needing to be true, in Meaning revisited. The examinee knows that the battle of Waterloo was fought in 1815. Nothing odd about that, nor about Moores uttering I know that these are my hands. Grice is perhaps the only one of the Oxonian philosophers of Austins play group who took common sense realsim so seriously, if only to crticise Malcoms zeal with it. For Grice, common-sense realism = ordinary language, whereas for the typical Austinian, ordinary language = the language of the man in the street. Back at Oxford, Grice uses Malcolm to contest the usual criticism that Oxford ordinary-language philosophers defend common-sense realist assumptions just because the way non-common-sense realist philosopher’s talk is not ordinary language, and even at Oxford. Cf. Flews reference to Joness philosophical verbal rubbish in using self as a noun. Grice is infuriated by all this unclear chatter, and chooses Malcolms mistreatment of Moore as an example. Grice is possibly fearful to consider Austins claims directly! In later essays, such as ‘the learned’ and ‘the lay,’ Grice goes back to the topic criticising now the scientists jargon as an affront to the ordinary language of the layman that Grice qua philosopher defends. scepticism, in the most common sense, the refusal to grant that there is any knowledge or justification. Skepticism can be either partial or total, either practical or theoretical, and, if theoretical, either moderate or radical, and either of knowledge or of justification. Skepticism is partial iff if and only if it is restricted to particular fields of beliefs or propositions, and total iff not thus restricted. And if partial, it may be highly restricted, as is the skepticism for which religion is only opium, or much more general, as when not only is religion called opium, but also history bunk and metaphysics meaningless. Skepticism is practical iff it is an attitude of deliberately withholding both belief and disbelief, accompanied perhaps but not necessarily by commitment to a recommendation for people generally, that they do likewise. Practical skepticism can of course be either total or partial, and if partial it can be more or less general. Skepticism is theoretical iff it is a commitment to the belief that there is no knowledge justified belief of a certain kind or of certain kinds. Such theoretical skepticism comes in several varieties. It is moderate and total iff it holds that there is no certain superknowledge superjustified belief whatsoever, not even in logic or mathematics, nor through introspection of one’s present experience. It is radical and total iff it holds that there isn’t even any ordinary knowledge justified belief at all. It is moderate and partial, on the other hand, iff it holds that there is no certain superknowledge superjustified belief of a certain specific kind K or of certain specific kinds K1, . . . , Kn less than the totality of such kinds. It is radical and partial, finally, iff it holds that there isn’t even any ordinary knowledge justified belief at all of that kind K or of those kinds K1, . . . , Kn. Grecian skepticism can be traced back to Socrates’ epistemic modesty. Suppressed by the prolific theoretical virtuosity of Plato and Aristotle, such modesty reasserted itself in the skepticism of the Academy led by Arcesilaus and later by Carneades. In this period began a long controversy pitting Academic Skeptics against the Stoics Zeno and later Chrysippus, and their followers. Prolonged controversy, sometimes heated, softened the competing views, but before agreement congealed Anesidemus broke with the Academy and reclaimed the arguments and tradition of Pyrrho, who wrote nothing, but whose Skeptic teachings had been preserved by a student, Timon in the third century B.C.. After enduring more than two centuries, neoPyrrhonism was summarized, c.200 A.D., by Sextus Empiricus Outlines of Pyrrhonism and Adversus mathematicos. Skepticism thus ended as a school, but as a philosophical tradition it has been influential long after that, and is so even now. It has influenced strongly not only Cicero Academica and De natura deorum, St. Augustine Contra academicos, and Montaigne “Apology for Raimund Sebond”, but also the great historical philosophers of the Western tradition, from Descartes through Hegel. Both on the Continent and in the Anglophone sphere a new wave of skepticism has built for decades, with logical positivism, deconstructionism, historicism, neopragmatism, and relativism, and the writings of Foucault knowledge as a mask of power, Derrida deconstruction, Quine indeterminacy and eliminativism, Kuhn incommensurability, and Rorty solidarity over objectivity, edification over inquiry. At the same time a rising tide of books and articles continues other philosophical traditions in metaphysics, epistemology, ethics, etc. It is interesting to compare the cognitive disengagement recommended by practical skepticism with the affective disengagement dear to stoicism especially in light of the epistemological controversies that long divided Academic Skepticism from the Stoa, giving rise to a rivalry dominant in Hellenistic philosophy. If believing and favoring are positive, with disbelieving and disfavoring their respective negative counterparts, then the magnitude of our happiness positive or unhappiness negative over a given matter is determined by the product of our belief/disbelief and our favoring/disfavoring with regard to that same matter. The fear of unhappiness may lead one stoically to disengage from affective engagement, on either side of any matter that escapes one’s total control. And this is a kind of practical affective “skepticism.” Similarly, if believing and truth are positive, with disbelieving and falsity their respective negative counterparts, then the magnitude of our correctness positive or error negative over a given matter is determined by the product of our belief/disbelief and the truth/falsity with regard to that same matter where the positive or negative magnitude of the truth or falsity at issue may be determined by some measure of “theoretical importance,” though alternatively one could just assign all truths a value of !1 and all falsehoods a value of †1. The fear of error may lead one skeptically to disengage from cognitive engagement, on either side of any matter that involves risk of error. And this is “practical cognitive skepticism.” We wish to attain happiness and avoid unhappiness. This leads to the disengagement of the stoic. We wish to attain the truth and avoid error. This leads to the disengagement of the skeptic, the practical skeptic. Each opts for a conservative policy, but one that is surely optional, given just the reasoning indicated. For in avoiding unhappiness the stoic also forfeits a corresponding possibility of happiness. And in avoiding error the skeptic also forfeits a corresponding possibility to grasp a truth. These twin policies appeal to conservatism in our nature, and will reasonably prevail in the lives of those committed to avoiding risk as a paramount objective. For this very desire must then be given its due, if we judge it rational. Skepticism is instrumental in the birth of modern epistemology, and modern philosophy, at the hands of Descartes, whose skepticism is methodological but sophisticated and well informed by that of the ancients. Skepticism is also a main force, perhaps the main force, in the broad sweep of Western philosophy from Descartes through Hegel. Though preeminent in the history of our subject, skepticism since then has suffered decades of neglect, and only in recent years has reclaimed much attention and even applause. Some recent influential discussions go so far as to grant that we do not know we are not dreaming. But they also insist one can still know when there is a fire before one. The key is to analyze knowledge as a kind of appropriate responsiveness to its object truth: what is required is that the subject “track” through his belief the truth of what he believes. S tracks the truth of P iff: S would not believe P if P were false. Such an analysis of tracking, when conjoined with the view of knowledge as tracking, enables one to explain how one can know about the fire even if for all one knows it is just a dream. The crucial fact here is that even if P logically entails Q, one may still be able to track the truth of P though unable to track the truth of Q. Nozick, Philosophical Explanations, 1. Many problems arise in the literature on this approach. One that seems especially troubling is that though it enables us to understand how contingent knowledge of our surroundings is possible, the tracking account falls short of enabling an explanation of how such knowledge on our part is actual. To explain how one knows that there is a fire before one F, according to the tracking account one presumably would invoke one’s tracking the truth of F. But this leads deductively almost immediately to the claim that one is not dreaming: Not D. And this is not something one can know, according to the tracking account. So how is one to explain one’s justification for making that claim? Most troubling of all here is the fact that one is now cornered by the tracking account into making combinations of claims of the following form: I am quite sure that p, but I have no knowledge at all as to whether p. And this seems incoherent. A Cartesian dream argument that has had much play in recent discussions of skepticism is made explicit by Barry Stroud, The Significance of Philosophical Scepticism, 4 as follows. One knows that if one knows F then one is not dreaming, in which case if one really knows F then one must know one is not dreaming. However, one does not know one is not dreaming. So one does not know F. Q.E.D. And why does one fail to know one is not dreaming? Because in order to know it one would need to know that one has passed some test, some empirical procedure to determine whether one is dreaming. But any such supposed test  say, pinching oneself  could just be part of a dream, and dreaming one passes the test would not suffice to show one was not dreaming. However, might one not actually be witnessing the fire, and passing the test  and be doing this in wakeful life, not in a dream  and would that not be compatible with one’s knowing of the fire and of one’s wakefulness? Not so, according to the argument, since in order to know of the fire one needs prior knowledge of one’s wakefulness. But in order to know of one’s wakefulness one needs prior knowledge of the results of the test procedure. But this in turn requires prior knowledge that one is awake and not dreaming. And we have a vicious circle. We might well hold that it is possible to know one is not dreaming even in the absence of any positive test result, or at most in conjunction with coordinate not prior knowledge of such a positive indication. How in that case would one know of one’s wakefulness? Perhaps one would know it by believing it through the exercise of a reliable faculty. Perhaps one would know it through its coherence with the rest of one’s comprehensive and coherent body of beliefs. Perhaps both. But, it may be urged, if these are the ways one might know of one’s wakefulness, does not this answer commit us to a theory of the form of A below? A The proposition that p is something one knows believes justifiably if and only if one satisfies conditions C with respect to it. And if so, are we not caught in a vicious circle by the question as to how we know  what justifies us in believing  A itself? This is far from obvious, since the requirement that we must submit to some test procedure for wakefulness and know ourselves to test positively, before we can know ourselves to be awake, is itself a requirement that seems to lead equally to a principle such as A. At least it is not evident why the proposal of the externalist or of the coherentist as to how we know we are awake should be any more closely related to a general principle like A than is the foundationalist? notion that in order to know we are awake we need epistemically prior knowledge that we test positive in a way that does not presuppose already acquired knowledge of the external world. The problem of how to justify the likes of A is a descendant of the infamous “problem of the criterion,” reclaimed in the sixteenth century and again in this century by Chisholm, Theory of Knowledge, 6, 7, and 8 but much used already by the Skeptics of antiquity under the title of the diallelus. About explanations of our knowledge or justification in general of the form indicated by A, we are told that they are inadequate in a way revealed by examples like the following. Suppose we want to know how we know anything at all about the external world, and part of the answer is that we know the location of our neighbor by knowing the location of her car in her driveway. Surely this would be at best the beginning of an answer that might be satisfactory in the end if recursive, e.g., but as it stands it cannot be satisfactory without supplementation. The objection here is based on a comparison between two appeals: the appeal of a theorist of knowledge to a principle like A in the course of explaining our knowledge or justification in general, on one side; and the appeal to the car’s location in explaining our knowledge of facts about the external world, on the other side. This comparison is said to be fatal to the ambition to explain our knowledge or justification in general. But are the appeals relevantly analogous? One important difference is this. In the example of the car, we explain the presence, in some subject S, of a piece of knowledge of a certain kind of the external world by appeal to the presence in S of some other piece of knowledge of the very same kind. So there is an immediate problem if it is our aim to explain how any knowledge of the sort in question ever comes to be unless the explication is just beginning, and is to turn recursive in due course. Now of course A is theoretically ambitious, and in that respect the theorist who gives an answer of the form of A is doing something similar to what must be done by the protagonist in our car example, someone who is attempting to provide a general explanation of how any knowledge of a certain kind comes about. Nevertheless, there is also an important difference, namely that the theorist whose aim it is to give a general account of the form of A need not attribute any knowledge whatsoever to a subject S in explaining how that subject comes to have a piece of knowledge or justified belief. For there is no need to require that the conditions C appealed to by principle A must be conditions that include attribution of any knowledge at all to the subject in question. It is true that in claiming that A itself meets conditions C, and that it is this which explains how one knows A, we do perhaps take ourselves to know A or at least to be justified in believing it. But if so, this is the inevitable lot of anyone who seriously puts forward any explanation of anything. And it is quite different from a proposal that part of what explains how something is known or justifiably believed includes a claim to knowledge or justified belief of the very same sort. In sum, as in the case of one’s belief that one is awake, the belief in something of the form of A may be said to be known, and in so saying one does not commit oneself to adducing an ulterior reason in favor of A, or even to having such a reason in reserve. One is of course committed to being justified in believing A, perhaps even to having knowledge that A. But it is not at all clear that the only way to be justified in believing A is by way of adduced reasons in favor of A, or that one knows A only if one adduces strong enough reasons in its favor. For we often know things in the absence of such adduced reasons. Thus consider one’s knowledge through memory of which door one used to come into a room that has more than one open door. Returning finally to A, in its case the explanation of how one knows it may, once again, take the form of an appeal to the justifying power of intellectual virtues or of coherence  or both. Recent accounts of the nature of thought and representation undermine a tradition of wholesale doubt about nature, whose momentum is hard to stop, and threatens to leave the subject alone and restricted to a solipsism of the present moment. But there may be a way to stop skepticism early  by questioning the possibility of its being sensibly held, given what is required for meaningful language and thought. Consider our grasp of observable shape and color properties that objects around us might have. Such grasp seems partly constituted by our discriminatory abilities. When we discern a shape or a color we do so presumably in terms of a distinctive impact that such a shape or color has on us. We are put systematically into a certain distinctive state X when we are appropriately related, in good light, with our eyes open, etc., to the presence in our environment of that shape or color. What makes one’s distinctive state one of thinking of sphericity rather than something else, is said to be that it is a state tied by systematic causal relations to skepticism skepticism 849   849 the presence of sphericity in one’s normal environment. A light now flickers at the end of the skeptic’s tunnel. In doubt now is the coherence of traditional skeptical reflection. Indeed, our predecessors in earlier centuries may have moved in the wrong direction when they attempted a reduction of nature to the mind. For there is no way to make sense of one’s mind without its contents, and there is no way to make sense of how one’s mind can have such contents except by appeal to how one is causally related to one’s environment. If the very existence of that environment is put in doubt, that cuts the ground from under one’s ability reasonably to characterize one’s own mind, or to feel any confidence about its contents. Perhaps, then, one could not be a “brain in a vat.” Much contemporary thought about language and the requirements for meaningful language thus suggests that a lot of knowledge must already be in place for us to be able to think meaningfully about a surrounding reality, so as to be able to question its very existence. If so, then radical skepticism answers itself. For if we can so much as understand a radical skepticism about the existence of our surrounding reality, then we must already know a great deal about that reality.  Sceptics, those ancient thinkers who developed sets of arguments to show either that no knowledge is possible Academic Skepticism or that there is not sufficient or adequate evidence to tell if any knowledge is possible. If the latter is the case then these thinkers advocated suspending judgment on all question concerning knowledge Pyrrhonian Skepticism. Academic Skepticism gets its name from the fact that it was formulated in Plato’s Academy in the third century B.C., starting from Socrates’ statement, “All I know is that I know nothing.” It was developed by Arcesilaus c.268241 and Carneades c.213129, into a series of arguments, directed principally against the Stoics, purporting to show that nothing can be known. The Academics posed a series of problems to show that what we think we know by our senses may be unreliable, and that we cannot be sure about the reliability of our reasoning. We do not possess a guaranteed standard or criterion for ascertaining which of our judgments is true or false. Any purported knowledge claim contains some element that goes beyond immediate experience. If this claim constituted knowledge we would have to know something that could not possibly be false. The evidence for the claim would have to be based on our senses and our reason, both of which are to some degree unreliable. So the knowledge claim may be false or doubtful, and hence cannot constitute genuine knowledge. So, the Academics said that nothing is certain. The best we can attain is probable information. Carneades is supposed to have developed a form of verification theory and a kind of probabilism, similar in some ways to that of modern pragmatists and positivists. Academic Skepticism dominated the philosophizing of Plato’s Academy until the first century B.C. While Cicero was a student there, the Academy turned from Skepticism to a kind of eclectic philosophy. Its Skeptical arguments have been preserved in Cicero’s works, Academia and De natura deorum, in Augustine’s refutation in his Contra academicos, as well as in the summary presented by Diogenes Laertius in his lives of the Grecian philosophers. Skeptical thinking found another home in the school of the Pyrrhonian Skeptics, probably connected with the Methodic school of medicine in Alexandria. The Pyrrhonian movement traces its origins to Pyrrho of Elis c.360275 B.C. and his student Timon c.315225 B.C.. The stories about Pyrrho indicate that he was not a theoretician but a practical doubter who would not make any judgments that went beyond immediate experience. He is supposed to have refused to judge if what appeared to be chariots might strike him, and he was often rescued by his students because he would not make any commitments. His concerns were apparently ethical. He sought to avoid unhappiness that might result from accepting any value theory. If the theory was at all doubtful, accepting it might lead to mental anguish. The theoretical formulation of Pyrrhonian Skepticism is attributed to Aenesidemus c.100 40 B.C.. Pyrrhonists regarded dogmatic philosophers and Academic Skeptics as asserting too much, the former saying that something can be known and the latter that nothing can be known. The Pyrrhonists suspended judgments on all questions on which there was any conflicting evidence, including whether or not anything could be known. The Pyrrhonists used some of the same kinds of arguments developed by Arcesilaus and Carneades. Aenesidemus and those who followed after him organized the arguments into sets of “tropes” or ways of leading to suspense of judgment on various questions. Sets of ten, eight, five, and two tropes appear in the only surviving writing of the Pyrrhonists, the works of Sextus Empiricus, a third-century A.D. teacher of Pyrrhonism. Each set of tropes offers suggestions for suspending judgment about any knowledge claims that go beyond appearances. The tropes seek to show that for any claim, evidence for and evidence against it can be offered. The disagreements among human beings, the variety of human experiences, the fluctuation of human judgments under differing conditions, illness, drunkenness, etc., all point to the opposition of evidence for and against each knowledge claim. Any criterion we employ to sift and weigh the evidence can also be opposed by countercriterion claims. Given this situation, the Pyrrhonian Skeptics sought to avoid committing themselves concerning any kind of question. They would not even commit themselves as to whether the arguments they put forth were sound or not. For them Skepticism was not a statable theory, but rather an ability or mental attitude for opposing evidence for and against any knowledge claim that went beyond what was apparent, that dealt with the non-evident. This opposing produced an equipollence, a balancing of the opposing evidences, that would lead to suspending judgment on any question. Suspending judgment led to a state of mind called “ataraxia,” quietude, peace of mind, or unperturbedness. In such a state the Skeptic was no longer concerned or worried or disturbed about matters beyond appearances. The Pyrrhonians averred that Skepticism was a cure for a disease called “dogmatism” or rashness. The dogmatists made assertions about the non-evident, and then became disturbed about whether these assertions were true. The disturbance became a mental disease or disorder. The Pyrrhonians, who apparently were medical doctors, offered relief by showing the patient how and why he should suspend judgment instead of dogmatizing. Then the disease would disappear and the patient would be in a state of tranquillity, the peace of mind sought by Hellenistic dogmatic philosophers. The Pyrrhonists, unlike the Academic Skeptics, were not negative dogmatists. The Pyrrhonists said neither that knowledge is possible nor that it is impossible. They remained seekers, while allowing the Skeptical arguments and the equipollence of evidences to act as a purge of dogmatic assertions. The purge eliminates all dogmas as well as itself. After this the Pyrrhonist lives undogmatically, following natural inclinations, immediate experience, and the laws and customs of his society, without ever judging or committing himself to any view about them. In this state the Pyrrhonist would have no worries, and yet be able to function naturally and according to law and custom. The Pyrrhonian movement disappeared during the third century A.D., possibly because it was not considered an alternative to the powerful religious movements of the time. Only scant traces of it appear before the Renaissance, when the texts of Sextus and Cicero were rediscovered and used to formulate a modern skeptical view by such thinkers as Montaigne and Charron.  Refs.: The obvious source is the essay on scepticism in WoW, but there are allusions in “Prejudices and predilections, and elsewhere, in The H. P. Grice Papers, BANC
Scheler, M.: G. phenomenologist, social philosopher, and sociologist of knowledge. Born in Munich, he studied in Jena; when he returned to Munich in 7 he came in contact with phenomenology, especially the realist version of the early Husserl and his Munich School followers. Scheler’s first works were phenomenological studies in ethics leading to his ultimate theory of value: he described the moral feelings of sympathy and resentment and wrote a criticism of Kantian formalism and rationalism, Formalism in Ethics and a Non-Formal Ethics of Value 3. During the war, he was an ardent nationalist and wrote essays in support of the war that were also philosophical criticisms of modern culture, opposed to “Anglo-Saxon” naturalism and rational calculation. Although he later embraced a broader notion of community, such criticisms of modernity remained constant themes of his writings. His conversion to Catholicism after the war led him to apply phenomenological description to religious phenomena and feelings, and he later turned to themes of anthropology and natural science. The core of Scheler’s phenomenological method is his conception of the objectivity of essences, which, though contained in experience, are a priori and independent of the knower. For Scheler, values are such objective, though non-Platonic, essences. Their objectivity is intuitively accessible in immediate experience and feelings, as when we experience beauty in music and do not merely hear certain sounds. Scheler distinguished between valuations or value perspectives on the one hand, which are historically relative and variable, and values on the other, which are independent and invariant. There are four such values, the hierarchical organization of which could be both immediately intuited and established by various public criteria like duration and independence: pleasure, vitality, spirit, and religion. Corresponding to these values are various personalities who are not creators of value but their discoverers, historical disclosers, and exemplars: the “artist of consumption,” the hero, the genius, and the saint. A similar hierarchy of values applies to forms of society, the highest of which is the church, or a Christian community of solidarity and love. Scheler criticizes the leveling tendencies of liberalism for violating this hierarchy, leading to forms of resentment, individualism, and nationalism, all of which represent the false ordering of values.

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