Theorem Subgroup.exists_ne_one_of_nontrivial

Modification history

2024-11-21 09:25
Mathlib/Algebra/Group/Subgroup/Basic.lean
chore(Algebra/Group/Subgroup): split `Lattice`, `Map`, `Ker` from `Basic.lean` (#19295) …
Modified Subgroup.exists_ne_one_of_nontrivialView on Github →
2023-09-28 15:48
Mathlib/GroupTheory/Subgroup/Basic.lean
feat: add theorem cast_subgroup_of_units_card_ne_zero (#6500) …
Added Subgroup.exists_ne_one_of_nontrivialView on Github →