Mathematicians born on this day:
1728 : Lambert |
Mathematicians who died on this day:
1349 : Bradwardine |

Johann Lambert | Wolfgang Krull |

**Johann H Lambert** (1728 - 1777)

Proofs of the Euclidean [parallel] postulate can be developed to such an extent that apparently a mere trifle remains. But a careful analysis shows that in this seeming trifle lies the crux of the matter; usually it contains either the proposition that is being proved or a postulate equivalent to it.

Quoted in C B Boyer, *A History of Mathematics * (New York 1968)

Another quotation by one of today's mathematicians

JOC/EFR April 2015
The URL of this page is: |
School of Mathematics and Statistics University of St Andrews, Scotland | |

http://www-history.mcs.st-andrews.ac.uk/history/Day_files/Day826.html |