What's and where's the logic in "Logic and Conversation"

by JLS
for the GC

Further from wiki's 'rhetoric' under subsection on Aristotle --. A commentary on J's view of logic as being 'formal logic' (simpliciter or not):

"logos: the use of reasoning, either inductive or deductive, to construct an argument."

"Logos appeals include appeals to

a. statistics,
b. math,
c. logic, and
d. objectivity."

Try to make completeness out of that!

"For instance, when advertisements claim that their product is 37% more effective than the competition, they are making a logical appeal."

"Inductive reasoning uses examples (historical, mythical, or hypothetical) to draw conclusions."

-- as in 'yield' rather than 'with a pencil'.

"Deductive reasoning, or "enthymematic" reasoning, uses generally accepted propositions to derive specific conclusions. The term logic evolved from logos."

-- but the term they used for YEARS was 'dialectica' as per the trivium.

"Aristotle emphasized enthymematic reasoning as central to the process of rhetorical invention, though later rhetorical theorists placed much less emphasis on it."

till the coming of Grice, course!