Martin Montminy

ABSTRACT: Christopher Peacocke defends a sophisticated version of Conceptual Role Theory. For him, the nature of a concept is completely determined by an account of what it is to possess that concept. The possession conditions he puts forward rest on the notion of primitively compelling transitions or, more recently, on the idea of implicit conceptions. I show that his account is circular and appeals to a dubious distinction between constitutive transitions and transitions that depend on factual beliefs. I also point out that his possession conditions violate the Publicity Constraint; and, finally, I raise doubts about the psychological reality of primitively compelling transitions and implicit conceptions.

Epistemic contextualism, many critics argue, entails that ordinary speakers are blind to the fact that knowledge claims have context-sensitive truth conditions. This attribution of blindness, critics add, seriously undermines contextualism. I show that this criticism and, in general, discussions about the error theory entailed by contextualism, greatly underestimates the complexity and diversity of the data about ordinary speakers? inter-contextual judgments, as well as the range of explanatory moves that are open to both invariantists and contextualists concerning such judgments. Contextualism does entail that some speakers suffer from semantic blindness; however, at its roots, this blindness concerns not the context-sensitivity of knowledge claims, but the question whether knowledge sentences possess context-independent truth conditions. I argue that this blindness should not be deemed problematic, but that invariantism entails an error theory that is, by comparison, much more troubling

This paper explores the relationships between Davidson's indeterminacy of interpretation thesis and two semantic properties of sentences that have come to be recognized recently, namely semantic incompleteness and semantic indecision.1 More specifically, I will examine what the indeterminacy thesis entails for sentences of the form 'By sentence S (or word w), agent A means that m' and 'Agent A believes that p.' My primary goal is to shed light on the indeterminacy thesis and its consequences. I will distinguish two kinds of indeterminacy that have very different sources and very different consequences. But this does not purport to be an exhaustive study: there may well be other forms of indeterminacy that this ..