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Home -> Community -> Usenet -> comp.databases.theory -> Re: Clean Object Class Design -- Circle/Ellipse
>Somebody in the other thread noted that subsets in math are defined by
>predicates over containing set. I have trouble identifying a predicate
>that selects integers from the set of real numbers. Am I missing
>something obvious? This is maybe the first indicator that we don't
>want to inherit integers from reals.
I = { r in R | floor(r) = r } Received on Sat Aug 04 2001 - 14:25:47 CDT
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