∫ Утверждение Mathlib
diff_inter_self_eq_diff
Mathlib.Order.BooleanAlgebra.Set
URI: https://scilib.ai/kg/mathlib#Set.diff_inter_self_eq_diff
∫ Утверждение Mathlib
Mathlib.Order.BooleanAlgebra.Set
URI: https://scilib.ai/kg/mathlib#Set.diff_inter_self_eq_diff