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From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups: sci.math
Subject: Re: How many different unit fractions are lessorequal than all unit
 fractions?
Date: Wed, 11 Sep 2024 14:01:47 -0700
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On 9/11/2024 12:40 PM, WM wrote:
> On 11.09.2024 19:29, joes wrote:
>> Am Wed, 11 Sep 2024 16:37:30 +0200 schrieb WM:
>>> On 11.09.2024 04:09, Richard Damon wrote:
>>>> On 9/10/24 2:59 PM, WM wrote:
>>>
>>>>> Real points can be addressed from every side.
>>>> But only indexed from an actual end point.
>>> Every real point is an end point (of its subinterval).
>> What about open intervals?
> 
> Open intervals are intervals which have dark endpoints.

What about the gray ones?


> Note that 
> between any pair of visible real numbers there are many dark real numbers.