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