Generative semantics: Difference between revisions

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==Interpretive semantics and generative semantics==

The controversy surrounding generative semantics stemmed in part from the competition between two fundamentally different approaches to [[semantics]] within [[Transformational grammar|transformational]] [[Generative grammar|generative syntax]]. In the 1960s, work in the generative tradition assumed that semantics was ''interpretive'' in the sense that the meaning of a sentence was computed on the basis of its syntactic structure rather than the other way around. In these approaches, syntactic structures were generated by rules stated in terms of syntactic structure alone, with no reference to meaning. Once generated, these structures would serve as the input to a semantic computation which would output a denotation. This approach captured the relationship between syntactic and semantic patterns, while allowing the syntax to work independently of the semantics, as Chomsky and others had argued for on the basis of empirical observations such as the famous "[[Colorlesscolorless green ideas sleep furiously]]" sentence.

The generative semantics framework took the opposite view, positing that syntactic structures are computed on the basis of meanings. In this approach, meanings were generated directly by the grammar as [[Deep structure and surface structure|deep structures]], and were subsequently transformed into recognizable sentences by transformations. This approach necessitated more complex underlying structures than those proposed by Chomsky, and thus more complex transformations. Despite this additional complexity, the approach was appealing in several respects. First, it offered a powerful mechanism for explaining synonymity. In his initial work in generative syntax, Chomsky motivated transformations using [[active voice|active]]/[[passive voice|passive]] pairs such as "I hit John" and "John was hit by me", which have different surface forms despite their identical truth conditions.{{ref|2}} Generative semanticists wanted to account for ''all'' cases of synonymity in a similar fashion, which proved to be a challenge given the tools available at the time. Second, the theory had a pleasingly intuitive structure: the form of a sentence was quite literally ''derived'' from its meaning via transformations. To some, interpretive semantics seemed rather "clunky" and ''ad hoc'' in comparison. This was especially so before the development of [[trace (linguistics)|trace theory]].