L. E. J. Brouwer
Dutch mathematician and philosopher
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Luitzen Egbertus Jan "Bertus" Brouwer was a Dutch mathematician and philosopher who worked in topology, set theory, measure theory and complex analysis. Wikipedia
Born: February 27, 1881, Overschie, Rotterdam, Netherlands
Died: December 2, 1966 (age 85 years), Blaricum, Netherlands
Doctoral students: Arend Heyting
Thesis: Over de grondslagen der wiskunde (1907)