2025-12-16 07:57
Mathlib/GroupTheory/SpecificGroups/Alternating/MaximalSubgroups.lean
feat(GroupTheory/SpecificGroups/Alternating/MaximalSubgroups): maximal subgroups of the alternating group (#26831) …
Added alternatingGroup.isCoatom_stabilizer_of_ncard_lt_ncard_compl