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