Theorem GroupExtension.Section.exists_mul_eq_inl_mul_mul

Modification history

2025-02-07 17:49
Mathlib/GroupTheory/GroupExtension/Basic.lean
chore(GroupExtension/Basic): add lemmas about extensions by (non-abelian) groups (#20998) …
Added GroupExtension.Section.exists_mul_eq_inl_mul_mulView on Github →