Abstract

The Principle of Compositionality is the principle stating that the meaning of an expression is a function of (and only of) the meanings of its parts together with the method by which those parts are combined. The paper concerns the relationship between this principle and the phenomenon of context dependence. In a compositional language, it seems, the meaning of an expression depends upon the meanings of its parts in a bottom-up fashion, so some philosophers (e.g. Fodor&Lepore) argued that compositionality places a context-independence constraint on the properties of lexical meanings. However, some others philosphers (e.g. Szabo, Recanati) don’t see context--dependence as a challenge to the compositionality of language. This poses questions about the methodological status of the principle of compositionality, possible justifications of the principle, and various constraints on language required by compositional semantics. In the article I propose a version of the principle of compositionality which can help us deal with the phenomenon of context dependence. Then I investigate its formal representation and the effective arguments from context-dependence against thus formulated principle of contextual compositionality. The last part of the article concerns the relationship between the computability of a function and the compositional interpretation of a sentence.