World gets Semantics without Truth Values

Now out from Emeritus Professor Paul Pietroski, Conjoining Meanings: Semantics without Truth Values from Oxford University Press. Here Paul argues that "meanings are neither concepts nor extensions, and sentences do not have truth conditions. [Rather,] meanings are composable instructions for how to access and [...] build monadic concepts (a.k.a. mental predicates) that are massively conjunctive, while lexical meanings are instructions for how to fetch concepts that are monadic or dyadic. This allows for polysemy, since a lexical item can be linked to an address that is shared by a family of fetchable concepts. But the posited combinatorial operations are limited and limiting."