∫ Утверждение Mathlib
instInhabited
Mathlib.Algebra.Group.Subsemigroup.Defs
URI: https://scilib.ai/kg/mathlib#Subsemigroup.instInhabited
∫ Утверждение Mathlib
Mathlib.Algebra.Group.Subsemigroup.Defs
URI: https://scilib.ai/kg/mathlib#Subsemigroup.instInhabited