∫ Утверждение Mathlib
tsub_eq_of_eq_add_rev
Mathlib.Algebra.Order.Sub.Defs
URI: https://scilib.ai/kg/mathlib#AddLECancellable.tsub_eq_of_eq_add_rev
∫ Утверждение Mathlib
Mathlib.Algebra.Order.Sub.Defs
URI: https://scilib.ai/kg/mathlib#AddLECancellable.tsub_eq_of_eq_add_rev