Category:証明を含む記事

Arzelà–Ascoli theorem

Five lemma

Parallelogram law

Petr–Douglas–Neumann theorem

Sylvester–Gallai theorem

Primitive Pythagorean triple

Proof that e is irrational

Banach fixed-point theorem

Pappus's hexagon theorem

Kőnig's lemma

Dominated convergence theorem

Seven circles theorem

Schiffler point

Sz.-Nagy's dilation theorem

Open mapping theorem (complex analysis)

Gauss's lemma (number theory)

Carathéodory's theorem (convex hull)

Mean value theorem (divided differences)

Diagonal lemma

Intermediate value theorem

Pappus's area theorem

Hardy–Littlewood inequality

Jordan's lemma

Napkin ring problem

Helly's theorem

Locally connected space

Lune of Hippocrates

Routh's theorem