"Max August Zorn (German: [ts\u0254\u0281n]; June 6, 1906 \u2013 March 9, 1993) was a German mathematician. He was an algebraist, group theorist, and numerical analyst. He is best known for Zorn's lemma, a powerful tool in set theory that is applicable to a wide range of mathematical constructs such as vector spaces, ordered sets, etc. Zorn's lemma was first postulated by Kazimierz Kuratowski in 1922, and then independently by Zorn in 1935."@en . "1993-03-09Z"^^ . "Zorn, Max August"@en . . "1906Z"^^ . . . "German mathematician" . "1993Z"^^ . "1906-06-06Z"^^ .