 So far, all of the reconstructions of Putnam’s anti-skeptical argument that we have considered have involved, in various ways, the use of disquotation. But one remaining type of reconstruction does not involve the use of disquotation at all. (A major advantage, some might say.) Rather, these arguments depend on the thesis that one can know a priori that one’s thoughts have a given content, even when that content has an externalist semantics. Arguments of this sort have the following form: