Theorem Subgroup.relindex_mul_relindex

Modification history

2025-09-13 17:16
Mathlib/GroupTheory/Index.lean
chore(GroupTheory/Index): rename `relindex` to `relIndex` (#19872) …
Deleted Subgroup.relindex_mul_relindexView on Github →
2023-02-14 07:17
Mathlib/GroupTheory/Index.lean
feat: port GroupTheory.Index (#2222)
Added Subgroup.relindex_mul_relindexView on Github →