∫ Утверждение Mathlib
instInvolutiveInv
Mathlib.Algebra.Group.WithOne.Basic
URI: https://scilib.ai/kg/mathlib#WithOne.instInvolutiveInv
∫ Утверждение Mathlib
Mathlib.Algebra.Group.WithOne.Basic
URI: https://scilib.ai/kg/mathlib#WithOne.instInvolutiveInv