Mathematician:Ernst Friedrich Ferdinand Zermelo

Ernst Friedrich Ferdinand Zermelo German mathematician best known for his work on the foundations of mathematics.

Laid the groundwork (later to be enhanced by Abraham Fraenkel) for what are now known as the Zermelo-Fraenkel axioms of axiomatic set theory.

Nationality
Germany

History

 * Born: July 27, 1871, Berlin, German Empire
 * Died: May 21, 1953, Freiburg im Breisgau, West Germany

Theorems and Definitions

 * Zermelo-Fraenkel axioms: ZF and ZFC (with Abraham Fraenkel)
 * Zermelo's Theorem (Game Theory)
 * Zermelo's Theorem (Set Theory) (also known as the Well-Ordering Theorem)

Books and Papers

 * 1904: Beweis, dass jede Menge wohlgeordnet werden kann (Proof that every set can be well-ordered)
 * 1908: A new proof of the possibility of well-ordering
 * 1908: Investigations in the foundations of set theory I
 * 1913: On an Application of Set Theory to the Theory of the Game of Chess
 * 1930: On boundary numbers and domains of sets: new investigations in the foundations of set theory