Kazimierz Ajdukiewicz

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Birth Date:
12.12.1890
Death date:
12.04.1963
Extra names:
Kazimierz Ajdukiewicz
Categories:
Academician, Pedagogue, teacher, Philosopher, Professor, WWI participant
Nationality:
 pole
Cemetery:
Warsaw, Old Powązki Cemetery

Kazimierz Ajdukiewicz (12 December 1890 – 12 April 1963) was a Polish philosopher and logician, a prominent figure in the Lwów–Warsaw school of logic. He originated many novel ideas in semantics. Among these was categorial grammar, a highly flexible framework for the analysis of natural language syntax and (indirectly) semantics that remains a major influence on work in formal linguistics. Ajdukiewicz's fields of research were model theory and the philosophy of science.

Ajdukiewicz studied at the University of Lwów, and lectured there, as well as in Warsaw and in Poznań. He was Rector of the University of Poznań from 1948 to 1952. He was one of the founders of the journal Studia Logica in its current incarnation, editing it from 1953 to his death.

In his early epistemological system, which he called Radical Conventionalism, Ajdukiewicz analyzed any language as a set of expressions or sentences, with inferential rules of meaning that specify the relation of one expression to another, or to external data. There are three kinds of rules: Axiomatic, Deductive, and Empirical. Following the rules, one can map all knowable sentences of a language. However, some languages' vocabularies can produce disconnected sentences, which are only partly mapped by the meaning rules. Therefore, when one uses a language, even scientific one, a conceptual apparatus, an untranslatable set of meanings, is needed too, and with it a choice of the problems to be settled. For this reason the theory is a form of Conventionalism, and it is radical because even simple experiential reports are exposed to these language-wide considerations. Ajdukiewicz discarded this theory as the 1930s progressed.

Works

  • 1921 "Z metodologii nauk dedukcyjnych"
  • 1923 "Główne kierunki filozofii"
  • 1928 "Główne zasady metodologii nauk i logiki formalnej"
  • 1931 "O znaczeniu wyrażeń"
  • 1934 "Logiczne podstawy nauczania"
  • 1938 "Propedeutyka filozofii"
  • 1948 "Epistemologia i semantyka"
  • 1949 "Zagadnienia i kierunki filozofii"
  • 1952 "Zarys logiki"
  • 1964 "Zagadnienia empiryzmu a koncepcja znaczenia"
  • 1965 "Logika pragmatyczna"
  • 1960-1965 "Język i poznanie. Wybór pism"
  • 1966- Selected articles in "Logiczna Teoria Nauki" ( Logical Theory of Science) Ed. T.Pawłowski, Printed PWN, Warszawa.

 

Source: wikipedia.org

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