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From: WM <wolfgang.mueckenheim@tha.de>
Newsgroups: sci.math
Subject: Re: How many different unit fractions are lessorequal than all unit
 fractions?
Date: Fri, 20 Sep 2024 20:24:14 +0200
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On 19.09.2024 20:31, Jim Burns wrote:
> On 9/19/2024 6:38 AM, WM wrote:

>> Either there is a point next to zero
>> or there is no point next to zero,
> 
> Consider ABCDEFGHIJKLMNOPQRSTUVWXYZ
> 
> Q is between A and Z
> A and Z are not next to each other.
> 
> Nothing is between P and Q
> P and Q are next to each other.
> 
> ⎛ There is a gap between P and Q

No.

> ⎜ A gap isn't some _presence_
> ⎜ A gap is an _absence_ of whatever.

A gap in the real line is the absence of points.

> Consider the real line.
> For any two points x and y,
> (x+y)/2 is between x and y.
> x and y are not next to each other.

That is true for definable points only.

Regards, WM
>