∫ Утверждение Mathlib
sub_self_equiv
Mathlib.SetTheory.PGame.Algebra
URI: https://scilib.ai/kg/mathlib#SetTheory.PGame.sub_self_equiv
∫ Утверждение Mathlib
Mathlib.SetTheory.PGame.Algebra
URI: https://scilib.ai/kg/mathlib#SetTheory.PGame.sub_self_equiv