Content, Context, and Logic

Abstract

Non-propositionalism has additionally been fueled by the fact that modals and conditionals seem to give raise to failure of classical patterns of inference, for instance, modus ponens and modus tollens. Since non-propositionalist accounts typically invalidate some of these patterns of inference, the apparent counterexamples have been taken as further data in support of such treatments. This chapter argues that this is a mistaken reaction to the apparent counterexamples. The seeming violations of classical patterns of inference yet again result from a faulty assumption of the extra-linguistic account of context-sensitivity resolution, and a failure to account for the effects of discourse conventions on the interpretation of modal discourse. The chapter’s account of modality, which treats them as prominence-sensitive expressions whose interpretation is determined by discourse conventions, predicts and explains the apparent counterexamples, while nevertheless preserving classical logic.