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Re: [P-1788]: Re objective == infinity



On 2012-09-28 18:15:20 +0100, N.M. Maclaren wrote:
> Right.  So there are no closed unbounded intervals.

No, [1,+inf] is closed, because it is the complement of
the open set [-inf,1[. But it is not a compact.

> It does mean that certain functions may need to give an error if
> passed an infinity as an argument, but that's not a major problem.

Not sure what you mean here. Functions take intervals as inputs
(except constructors).

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