Theorem Subgroup.relindex_ne_zero

Modification history

2025-09-13 17:16
Mathlib/GroupTheory/Index.lean
chore(GroupTheory/Index): rename `relindex` to `relIndex` (#19872) …
Deleted Subgroup.relindex_ne_zeroView on Github →
2025-07-04 07:44
Mathlib/GroupTheory/Index.lean
chore: further whitespace fixes (#26708) …
Modified Subgroup.relindex_ne_zeroView on Github →
2025-04-18 17:47
Mathlib/GroupTheory/Index.lean
feat: typeclass for subgroups of finite relative index (#23596) …
Added Subgroup.relindex_ne_zeroView on Github →