Life and work
Ajdukiewicz studied philosophy, physics and mathematics at the University Lvov and received his PhD in 1912 at Kazimierz Twardowski. In 1921 he qualified as a professor in Warsaw, and then worked as a lecturer at the University of Lviv ( 1922-1925 ) and the University of Warsaw ( 1925-1928 ). In 1928 he became a professor in Lviv, where he also experienced the Second World War. In 1945 he became a professor at the University of Poznan and its rector from 1948 to 1952. He led the sector logic at the Polish Institute of Philosophy and Sociology, and in 1953 was editor of the journal Studia logica. He brought many new ideas into the formal logic, linguistics ( categorial ), scientific methodology and theory of teaching.