Olga Hahn-Neurath (July 20, 1882 - July 20, 1937) was an Austrian mathematician and philosopher. She is best known for being a member of the Vienna Circle. Sister of the mathematician Hans Hahn. Born in Vienna, Hahn had finish her first Degree in Sociology on Vienna Gymnasium, a year later she enrolled as a constant hearer for math and philosophy studies in Vienna University. Later on she became the third ever philosophy research student. Wikipedia
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