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On 9/11/24 3:40 PM, WM wrote:
>Open intervals are intervals which have dark endpoints. Note that between any pair of visible real numbers there are many dark real numbers.
No, Open intervals are intervals that exclude the endpoint from the interval, and thus don't HAVE an "endpoint".Intervals consist of points. Where no point is, there is no interval. Where an interval is, there is a point. The belif in an interval-end without points is pure matheology.
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