Algorithms..::..IsSubsetOf<(Of <(<'T>)>)> Method (IEnumerable<(Of <(<'T>)>)>, IEnumerable<(Of <(<'T>)>)>, IEqualityComparer<(Of <(<'T>)>)>)

Determines if one collection is a subset of another, considered as sets. The first set is a subset of the second set if every item in the first set also occurs in the second set. If an item appears X times in the first set, it must appear at least X times in the second set.

public static bool IsSubsetOf<T>(
	IEnumerable<T> collection1,
	IEnumerable<T> collection2,
	IEqualityComparer<T> equalityComparer
)

Public Shared Function IsSubsetOf(Of T) ( _
	collection1 As IEnumerable(Of T), _
	collection2 As IEnumerable(Of T), _
	equalityComparer As IEqualityComparer(Of T) _
) As Boolean

public:
generic<typename T>
static bool^ IsSubsetOf(
	IEnumerable<T>^ collection1, 
	IEnumerable<T>^ collection2, 
	IEqualityComparer<T>^ equalityComparer
)