Theorem Subgroup.relindex_map_map

Modification history

2025-09-13 17:16
Mathlib/GroupTheory/Index.lean
chore(GroupTheory/Index): rename `relindex` to `relIndex` (#19872) …
Deleted Subgroup.relindex_map_mapView on Github →
2025-09-01 13:46
Mathlib/GroupTheory/Index.lean
feat(NumberField/Units): compute index of unit subgroups using regulators (#26075) …
Added Subgroup.relindex_map_mapView on Github →