Theorem Int.sq_emod_four_eq_one_of_odd

Modification history

2026-08-12 18:02
Mathlib/Algebra/Ring/Int/Parity.lean
feat(Algebra/Ring/Int/Parity): add Int.sq_emod_four and relocate square-mod-four lemma (#42296) …
Added Int.sq_emod_four_eq_one_of_oddView on Github →