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