Similar to スチュワートの定理

Ceva's theorem

Arzelà–Ascoli theorem

Apollonius point

Apollonius's theorem

Angle bisector theorem

Menelaus's theorem

Archimedean property

Five lemma

Euler's formula

Carathéodory's theorem (convex hull)

Casey's theorem

Kempner series

Cauchy's mean value theorem

Schiffler point

Sylvester–Gallai theorem

Law of sines

Law of tangents

Thales's theorem

Parallelogram law

Pappus's area theorem

Power of a point

Law of cosines

Law of cotangents

Routh's theorem

Publications Mathématiques de l'IHÉS

P-adic number

Archimedes