In response to some conversations, class, and a few comments over at Greg’s, I read most of Quine’s Philosophy of Logic. It turns out that Quine is very much a truth-before-consequence philosopher. What is really surprising is how little the notion of consequence figures into Quine’s book. The index on the edition I have doesn’t even have an entry for consequence. I don’t remember any discussion of consequence coming up during the course of reading. In the discussion of deviant logics, Quine only talks about different logical truths, nothing about differing consequence relations. Just from reading his book you’d get the idea that logical consequence wasn’t much of a topic, let alone a central one to the idea of logic.

Advertisements