Then you treat it like a set, the easy way. :)
I guess doing it any other way would need multisets to store the values rather then repeating the elements.
/ Mirar
Previous text:
2003-02-06 14:13: Subject: Xor
It's more like
(~(<1>))[1] == !((<1>)[1])
To bad we can't use ! instead of ~ for this inversion operation.
/ Niels Möller ()