Theorem Equiv.Perm.sumCongr_inv

Modification history

2023-08-10 19:52
Mathlib/GroupTheory/Perm/Basic.lean
chore: banish `Type _` and `Sort _` (#6499) …
Modified Equiv.Perm.sumCongr_invView on Github →
2022-12-19 15:36
Mathlib/GroupTheory/Perm/Basic.lean
feat: port group_theory.perm.basic (#1105)
Added Equiv.Perm.sumCongr_invView on Github →