Pasch's theorem

English

Etymology

Stated in 1882 by the German mathematician Moritz Pasch.

Proper noun

Pasch's theorem

  1. (geometry) A result in plane geometry which cannot be derived from Euclid's postulates. It states that, given points a, b, c, and d on a line, if it is known that the points are ordered as (a, b, c) and (b, c, d), then it is also true that (a, b, d).

See also
This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.