Kazimierz Kuratowski

Kazimierz Kuratowski (2 February 1896 to 18 June 1980) was a Polish mathematician and logician and one of the leading representatives of the Warsaw School of Mathematics. He worked as a professor at the University of Warsaw and at the Mathematical Institute of the Polish Academy of Sciences, and served as President of the Polish Mathematical Society from 1946 to 1953. He is primarily known for his contributions to set theory, topology, measure theory and graph theory. Concepts bearing his name include Kuratowski's theorem, the Kuratowski closure axioms, the Kuratowski-Zorn lemma and Kuratowski's intersection theorem. He was born in Warsaw, then part of Congress Poland controlled by the Russian Empire, into an assimilated Jewish family, the son of the barrister Marek Kuratow and Róża Karzewska.