∫ Утверждение Mathlib
to_group_eq_one_of_mem_closure
Mathlib.GroupTheory.PresentedGroup
URI: https://scilib.ai/kg/mathlib#PresentedGroup.to_group_eq_one_of_mem_closure
∫ Утверждение Mathlib
Mathlib.GroupTheory.PresentedGroup
URI: https://scilib.ai/kg/mathlib#PresentedGroup.to_group_eq_one_of_mem_closure