Iterator it = iterator();
Iterator it = new CombinedIterator(iterator(), set.iterator());
	public FuzzySet minus(FuzzySet set) {		int count = getElementsCount();		ArrayFuzzySet result = new ArrayFuzzySet(count, new SimpleMembership(0));		Iterator it = iterator();		while (it.hasNext()) {			int i = ((Integer)it.next()).intValue();			result.addMembership(i, 					new SimpleMembership(getMembership(i).minus(set.getMembership(i)).getComponents()));		}		return result;	}