/// <summary>
/// <para>Returns 'true' if at least one of the 'l' list's elements
/// satisfies the condition 'f'.
///
/// </para>
/// </summary> <remarks><para>Example of use:
///
/// </para> <para>NList.Exists (["a", "b", "abc", "d", "e"], fun (x) { x.Length > 2 })
///
/// </para> <para>evaluates to 'true' as there is one string of length 3 on the list.
///
/// </para></remarks>
public bool Exists(Function <T, bool> f)
{
return(NList.Exists <T>(this, f));
}
