Read the bio below and try to give details on kazimierz ajdukiewicz 's: - death date - field - birth date - name - nationality - death place - birth place Bio: kazimierz ajdukiewicz -lrb- 12 december 1890 -- 12 april 1963 -rrb- was a polish philosopher and logician , a prominent figure in the lwow -- 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 -lrb- indirectly -rrb- 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 lwow , and lectured there , as well as in warsaw and in poznan . he was rector of the university of poznan 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 .
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- death date is 12 april 1963- field is logician- birth date is 12 december 1890- name is kazimierz ajdukiewicz- nationality is polish- death place is warsaw , poland- birth place is ternopil , galicia