Context and logical form

In this paper, I defend the thesis that all effects of extra-linguistic context on the truth-conditions of an assertion are traceable to elements in the actual syntactic structure of the sentence uttered. In the first section, I develop the thesis in detail, and discuss its implications for the relation between semantics and pragmatics. The next two sections are devoted to apparent counterexamples. In the second section, I argue that there are no convincing examples of what John Perry has called 'unarticulated constituents'. I conclude by drawing some consequences of my arguments for appeals to context-dependence in the resolution of problems in epistemology and philosophical logic.