Hans Hahn
Hans Hahn was born on September 27, 1879. See ranking, bio blurb, and everyone else born that day.
About Hans Hahn
Hans Hahn (; German: [haːn]; 27 September 1879 – 24 July 1934) was an Austrian mathematician and philosopher who made contributions to functional analysis, topology, set theory, the calculus of variations, real analysis, and order theory. In philosophy he was among the main logical positivists of the Vienna Circle.