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