# Ernst Friedrich Ferdinand Zermelo

# Ernst Friedrich Ferdinand Zermelo

**1871-1953**

German mathematician best known for his work in set theory. He was the first to prove the well-ordering theorem (1904), a result important for many applications of set theory. Widely challenged, Zermelo responded with a second proof of the theorem in 1908. The same year he produced the first axiomatic formulation of set theory. Zermelo later placed certain restrictions on set formation to avoid paradoxes that otherwise would have rendered his axiomatic system useless.

#### More From encyclopedia.com

Georg Ferdinand Ludwig Philip Cantor , Cantor, Georg Ferdinand Ludwig Philip
CANTOR, GEORG FERDINAND LUDWIG PHILIP
d. Halle, Germany, 6 January 1918), mathematics, set theory, philosophy.… Chromosome Theory Of Heredity , chromosome theory of heredity The unifying theory put forward by W. S. Sutton in 1902 that Mendel's laws of inheritance may be explained by assuming… String Theory , String theory is a proposed unified theory of fundamental physics, incorporating both particle physics and gravity. It is based on the idea that the… Norman Robert Campbell , Campbell, Norman Robert
physics, philosophy of science.
Campbell was educated at Eton and became a scholar of Trinity College, Cambridge. In 1904 he… Georg Cantor , Cantor, Georg
Cantor, Georg
mathematics, set theory.
Cantor’s father, Georg Waldemar Cantor, was a successful and cosmopolitan merchant. His extant l… Set Theory , A set is a collection of things. A set can consist of real or literal numbers (such as 1, 2, 3, 4 or a, b, c, d) or of objects (such as baseballs or…

#### About this article

# Ernst Friedrich Ferdinand Zermelo

#### You Might Also Like

#### NEARBY TERMS

**Ernst Friedrich Ferdinand Zermelo**