Outline for a Truth Conditional Semantics for Tense Ernest Lepore Center for Cognitive Science Rutgers University New Brunswick, NJ 08903
[email protected] Kirk Ludwig Department of Philosophy University of Florida Gainesville, FL 32611-8545
[email protected] Forthcoming, 2002, Tense, Time and Reference, ed. Q. Smith (MIT Press) Outline for a Truth Conditional Semantics for Tense Ernest Lepore and Kirk Ludwig 1 Introduction The use of verbs inflected or modified for tense, and temporal adverbs, indexicals, and quantifiers, pervades everyday speech. Getting clearer about their semantics promises not only to help us to understand how we understand each other, but is also a step toward clarifying the nature of time and temporally located thoughts. Our aim in the present paper is to investigate, from the standpoint of truth-theoretic semantics, English tense, temporal designators and quantifiers, and other expressions we use to relate ourselves and other things to the temporal order. Truth-theoretic semantics provides a particularly illuminating standpoint from which to discuss issues about the semantics of tense, and their relation to thoughts at, and about, times. Tense, and temporal modifiers, contribute systematically to conditions under which sentences we utter are true or false. A Tarski-style truth-theoretic semantics, by requiring explicitly represented truth conditions, helps to sharpen questions about the function of tense, and to deepen our insight into the contribution the tenses and temporal modifiers make to what we say by using them. We are interested in a semantic, rather than syntactic, phenomenon. Although tense is identified traditionally with verb inflection, our concern is with linguistic devices used for indicating a time interval, relative to, or in, which a state or activity is to be understood to occur or obtain.