Pythagorean proposition

Related to Pythagorean proposition: Pythagorean theorem, A2+b2=c2, A²+b²=c²
(Geom.) the theorem that the square described upon the hypothenuse of a plane right-angled triangle is equal to the sum of the squares described upon the other two sides.

See also: Pythagorean

References in periodicals archive ?
6-11, which concern odd and even numbers, are a group of early Pythagorean propositions preserved out of reverence for their antiquity, despite their lack of connection with anything else in books 7-9 (and their lack of profundity in comparison with the rest of those books), and whose purpose was originally to lead up to the proposition on perfect numbers.