Similar to 面白い数のパラドックス

Cumulative hierarchy

Continuum (set theory)

Continuum hypothesis

Cardinality of the continuum

Union (set theory)

Axiom of union

Proof that 22/7 exceeds π

Proof that π is irrational

Euler's formula

Open mapping theorem (complex analysis)

Rank–nullity theorem

Gauss's lemma (number theory)

Angle bisector theorem

Carathéodory's theorem (convex hull)

Leibniz formula for determinants

Locally connected space

Coupon collector's problem

Casey's theorem

Kőnig's lemma

Primitive Pythagorean triple

Cauchy's mean value theorem

Mean value theorem (divided differences)

Schiffler point

Shannon's source coding theorem

Noisy-channel coding theorem

Jordan's lemma

Sylvester–Gallai theorem

Stewart's theorem