∫ Утверждение Mathlib
instAddRightCancelSemigroup
Mathlib.Algebra.Group.Opposite
URI: https://scilib.ai/kg/mathlib#MulOpposite.instAddRightCancelSemigroup
∫ Утверждение Mathlib
Mathlib.Algebra.Group.Opposite
URI: https://scilib.ai/kg/mathlib#MulOpposite.instAddRightCancelSemigroup