Performs an "intersection" of the two sets, where only the elements that are present in both sets remain. That is, the element is included if it exists in both sets. The Intersect() operation does not modify the input sets. It returns a Clone() of this set with the appropriate elements removed.

ISet<T> Intersect(
	ISet<T> a
)

Function Intersect ( _
	a As ISet(Of T) _
) As ISet(Of T)

ISet<T>^ Intersect(
	ISet<T>^ a
)