∫ Утверждение Mathlib
formPerm_eq_self_of_notMem
Mathlib.GroupTheory.Perm.Cycle.Concrete
URI: https://scilib.ai/kg/mathlib#Cycle.formPerm_eq_self_of_notMem
∫ Утверждение Mathlib
Mathlib.GroupTheory.Perm.Cycle.Concrete
URI: https://scilib.ai/kg/mathlib#Cycle.formPerm_eq_self_of_notMem