Theorem Subgroup.relindex_ker
Modification history
2025-09-13 17:16
Mathlib/GroupTheory/Index.lean
chore(GroupTheory/Index): rename `relindex` to `relIndex` (#19872) …
Deleted Subgroup.relindex_kerView on Github →2024-11-18 10:08
Mathlib/GroupTheory/Index.lean
refactor(GroupTheory/Index): Remove unnecessary coercions to `Set` in `index_ker` and `relindex_ker` (#19105) …
Modified Subgroup.relindex_kerView on Github →