Mathematician:Hans Freudenthal

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German born Dutch mathematician, made substantial contributions to algebraic topology.

Took an interest in literature, philosophy, history and mathematics education.

One of the most important figures in mathematics education in the $20$th century.


German, later Dutch


  • Born: 17 September 1905 in Luckenwalde, Germany
  • Died: 13 October 1990 in Utrecht, The Netherlands

Theorems and Definitions


  • 1931: Über die Enden topologischer Räume und Gruppen (Math. Z. Vol. 33: pp. 692 – 713)
  • 1937: Über die Klassen der Sphärenabbildungen. I. Große Dimensionen (Compos. Math. Vol. 5: pp. 299 – 314)
  • 1960: Lincos: design of a language for cosmic intercourse
  • 1969: Linear Lie Groups (with Hendrik de Vries)
  • 1972: Mathematics as an Educational Task
  • 1986: Didactical Phenomenology of Mathematical Structures
  • 1991: Revisiting Mathematics Education
  • 2015: El viaje de Ofantito (with Matías Freudenthal)