2025-06-15 08:42
Mathlib/GroupTheory/GroupAction/SubMulAction/OfFixingSubgroup.lean
feat(GroupTheory/GroupAction/SubMulAction/OfFixingSubgroup): action of the fixing Subgroup on the complement of a set (#23970) …
Added SubMulAction.of_fixingSubgroupEmpty_mapScalars_surjective