Re: elements vs sets



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Mark Richters (mr@informatik.uni-bremen.de)
25 Feb 2000 17:31:22 +0100


Mark Richters <mr@informatik.uni-bremen.de> writes: > Yes, I think that makes sense. I'm afraid my previous statement is wrong. For example, the result of the expression Set{p1,p2}->sortedBy(p : Person | p.name) with p1.name = p2.name cannot be uniquely determined. Both Sequence{p1,p2} and Sequence{p2,p1} are valid. The problem is that there need not be a one-to-one mapping between the expression giving the sort criteria and the things to be actually sorted. Regards, Mark -- Mark Richters (mr@informatik.uni-bremen.de)


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