Similar to 鳩の巣原理

Small set (combinatorics)

Sumset

Ackermann function

Rule of product

Addition principle

Q-analog

Van der Waerden's theorem

Inclusion–exclusion principle

Young tableau

Dirichlet's principle

Square root of 7

Abc conjecture

Bulletin de la Société Mathématique de France

Messenger of Mathematics

Homotopical connectivity

P-adic Teichmüller theory

P-adic quantum mechanics

P versus NP problem

Scripta Mathematica

Abel–Ruffini theorem

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