Simon Cozens writes: > I can't see any connection between keeping something *sorted* > specifically and having a set.
I think it depends what you're doing with duplicates. I haven't looked at your module, but if you are leaving duplicate values in there (consecutively, presumably) then I'm pretty sure it definitely isn't a set. 'The set of all the numbers of houses I've ever lived at' doesn't contain any duplicates, even if I've lived at both 7 Argumentative Avenue and 7 Quarrel Grove. Smylers
