Rieber 1998 proposes an account of "S knows that p" that generates a contextualist solution to Closure. In this paper, I’ll argue that Rieber’s account of "S knows that p" is subject to fatal objections, but we can modify it to achieve an adequate account of "S knows that p" that generates a unified contextualist solution to all four puzzles. This is a feat that should matter to those philosophers who have proposed contextualist solutions to Closure: all of them have (...) motivated their contextualism by appeal to the fact that they can explain the plausibility of each of the statements in Closure taken individually, and they can do this without having to deny that each of those statements is true, at least in the context in which it is plausible. But notice that this consideration would equally well motivate a contextualist approach to the other puzzles. Nonetheless, no contextualist has yet suggested how a contextualist solution to the other puzzles might go. (shrink)

According to Keith DeRose, the invariantist's attempt to account for the data which inspire contextualism fares no better, in the end, than the "desperate and lame" maneuvers of "the crazed theory of 'bachelor'", whereby S's being unmarried is not among the truth conditions of 'S is a bachelor', but merely an implicature generated by an assertion thereof. Here, I outline the invariantist account I have previously proposed. I then argue that the prospects for sophisticated invariantism — either as a general (...) approach, or in the specific form I have recommended — are not nearly as dim as DeRose suggests. (shrink)