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yields True if e1 contains any of the elements of e2.
is an operator form that yields True when the object to which it is applied contains any of the elements in e2.
The first list contains some of the elements of the second list:
The first list does not contain any of the elements of the second list:
ContainsAll ContainsNone ContainsOnly ContainsExactly IntersectingQ MemberQ SubsetQ Complement Intersection