Abstract
Every deflationist semantic theory has its inflationist correlate: this is the semantic theory the deflationist theory is designed to deflate. This chapter presents Radical Inflationism and Radical Deflationism as stipulatively defined theories, without regard to who might subscribe to them, or to one or another of their parts. Radical Deflationism is based on a view worked out over a number of important publications by Hartry Field. In other words, radical inflationist is on board with the view Hartry Field had when he wrote 'Tarski's theory of truth', that our notions of reference and truth are correspondence notions that stand in need of physicalistic explications. This is that Radical Deflationism's claim that the only reason we need a notion of truth is as a device of disquotation is hostage to the theory's ability to meet what we will presently see is its greatest challenge.