Similar to ベズーの等式

Pappus's area theorem

Pappus's hexagon theorem

Banach–Alaoglu theorem

Banach fixed-point theorem

Tangent half-angle substitution

Pythagorean theorem

Lune of Hippocrates

Nyquist–Shannon sampling theorem

Petr–Douglas–Neumann theorem

Helly's theorem

Poincaré–Bendixson theorem

Power of a point

Menelaus's theorem

Monge's theorem

Dominated convergence theorem

Laplace expansion

Law of cosines

Law of cotangents

Routh's theorem

Taylor circle

L'Hôpital's rule

Rolle's theorem

Wiles's proof of Fermat's Last Theorem

Lemma (mathematics)

Itô's lemma

Oka's lemma

Ogden's lemma