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The American Journal of Semiotics

Volume 25, Issue 1/2, 2009

Igor Hanzel
Pages 123-151

The Development of Carnap’s Semantics

The paper reconstructs the three main stages in the development of Carnap’s semantics in the years 1935–1947. It starts with Carnap’s approach to metalogic in his Zirkelprotokolle (1931) and his Logische Syntax der Sprache (1934) from the point of view of one-level approach to the relation between metalanguage and its object-language. It then analyzes Tarski’s turn to semantics in his paper presented at the Paris conference in September 1935, as well as the implications of his view for Carnap’s approach to semantics from 1935 until 1943. Finally, it analyzes Church’s rediscovery of Frege and its impact on Carnap’s shift to the extension/intension distinction in his semantics in the years 1943–1947.

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