On Tue, Aug 11, 2009 at 11:39 AM, Kip Murray<[email protected]> wrote: > What do you think of sets with repeated elements? Have you considered what > union, intersection, and difference should mean for such sets?
Sets, in the usual sense of the word, can not have repeating elements. Representations of sets can have repeating elements. Redefined sets (such as "sets with repeating elements") can have repeating elements. It's all a matter of what you are trying to do. Achieving extremely high generality is tempting, I know, and sometimes even educational. However: when generality beyond your current needs is achieved by increasing the complexity of your code, it's usually a bad thing. -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
