**Pierre de Fermat** was a 17th-century French mathematician known for:

- adequality? (now a feature of nonstandard analysis),
- infinite descent (a method of proof by induction),
- the least time principle? (a forerunner of the least action principle),
- Fermat's little theorem and Fermat's last theorem concerning rational points of Fermat curve (in number theory, now related to arithmetic algebraic geometry),
- the first rigorous probability calculations,
- etc.

See also *Fermat theory*

category: people

Last revised on September 14, 2013 at 15:44:31. See the history of this page for a list of all contributions to it.