Remove consecutive equal items from a collection, yielding another collection. In each run of consecutive equal items in the collection, all items after the first item in the run are removed.

Remove consecutive equal items from a collection, yielding another collection. In each run of consecutive equal items in the collection, all items after the first item in the run are removed. A passed IEqualityComparer is used to determine equality.

Remove consecutive "equal" items from a collection, yielding another collection. In each run of consecutive equal items in the collection, all items after the first item in the run are removed. The passed BinaryPredicate is used to determine if two items are "equal".