Abstract

The paper argues that Wittgenstein's criticisms of Frege and Russell's assertion sign are, a bottom, criticisms of a common flaw in these philosophers' early conceptions of the proposition. Each philosopher offers an account of the proposition that *seems* to suggest that a sentence cannot get so far as to say something without the addition of the assertion sign. This leads to the mistaken idea that there is a coherent notion of "logical assertion.".