著者

佃 繁

出版者

プール学院大学

雑誌

プール学院大学研究紀要 (ISSN:13426028)

巻号頁・発行日

vol.56, pp.29-42, 2015-12

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The purpose of this study [Tsukuda 2011, 2012, 2013, 2014] is to make it clear that both Luhmann's system theory and modern philosophy treat the same problem as `the world's complexity'. Luhmann argued that we need to differentiate a system from its environment to reduce `the world's complexity'. In the post-Kantian philosophy, `the world's complexity' is related to the mind-body problem. Analytic philosophers of language such as Quine and Davidson have tried to solve this problem. Alfred Tarski was a Polish logician, mathematician and philosopher. He presented his theories of truth in "The Concept of Truth in Formalized Languages"(1933) and greatly contributed to analytic philosophy. This paper investigates Tarski's method of defining truth for languages. Tarski himself applied his truth theory only to formal languages. Davidson, however, exstended Tarski's method into his approach to theories of meaning for natural languages.