/// <summary>
/// For each result, unify the _freeVariables and unify Bag with the associated bag which is sorted
/// with duplicates removed, as in setof.
/// </summary>
/// <param name="Bag"></param>
/// <returns></returns>
public IEnumerable <bool> resultSet(object Bag)
{
Variable bagArrayVariable = new Variable();
foreach (bool l1 in resultArray(bagArrayVariable))
{
List <object> bagArray = (List <object>)bagArrayVariable.getValue();
YP.sortArray(bagArray);
foreach (bool l2 in YP.unify(Bag, ListPair.makeWithoutRepeatedTerms(bagArray)))
{
yield return(false);
}
}
}