∫ Утверждение Mathlib
union_vsub_inter_subset_union
Mathlib.Algebra.Group.Pointwise.Set.Scalar
URI: https://scilib.ai/kg/mathlib#Set.union_vsub_inter_subset_union
∫ Утверждение Mathlib
Mathlib.Algebra.Group.Pointwise.Set.Scalar
URI: https://scilib.ai/kg/mathlib#Set.union_vsub_inter_subset_union