∫ Утверждение Mathlib
subsingleton_of_forall_eq
Mathlib.Data.Set.Subsingleton
URI: https://scilib.ai/kg/mathlib#Set.subsingleton_of_forall_eq
∫ Утверждение Mathlib
Mathlib.Data.Set.Subsingleton
URI: https://scilib.ai/kg/mathlib#Set.subsingleton_of_forall_eq