Check if an element is within a sequence

f#

Solution

Little bit simpler:

let contains x = Seq.exists ((=) x)

Problem

how to check if an element is contained within a sequence? I expected some Seq.contains, but i could not find it. Thanks EDIT: Or, for an easier task, how to make the diff between two sequences? Like, getting all the elements within a list that doesn not belong to another (or that do)?

Original source

Related problems