Polish mathematician and logician. Łukasiewicz was a central figure of the Lvov-Warsaw school of logic (and the inventor of the Polish notation for formal logic). He studied mathematics at the university of Lvov but his career included becoming Minister of Education in 1919 and a professor at Warsaw University from 1920 to 1939. During this period between the wars he was also twice rector of Warsaw University. Łukasiewicz published his text Elements of mathematical logic in Warsaw in 1928 (the English translation appeared in 1963). From 1946 he lived in Dublin.