Disimplicature

Speranza

In response to Stephen Neale, one might argue that "aphonic" expressions, such as PRO, are intentionally uttered by normal utterers of a natural language such as Oxonian English, either by acts of omitting to say something explicitly, or by acts of giving phonetic realization to aphonics. 

One might argue, also, that Gricean intention-based semantics should seek divorce from Cartesian assumptions of transparent access to propositional attitudes and, consequently, that S. R. Schiffer's so-called meaning-intention problem is not powerful enough to banish alleged cases of over-intellectualization in contemporary philosophy of language and mind.

But then, Grice loved Schiffer!

Vide Russell Dale.