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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: Sat, 21 Sep 2024 16:48:00 -0700
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On 9/21/2024 4:25 PM, Richard Damon wrote:
> On 9/21/24 9:57 AM, WM wrote:
>> On 21.09.2024 01:06, Richard Damon wrote:
>>> On 9/20/24 2:33 PM, WM wrote:
>>
>>>> How can 10 points exist in linear order without a first one?
>>
>>> Who says they can't.
>>
>> In order to count to 10, you have to start at 1.
>>>
>>> Its just when they become infinite that there might be ends that 
>>> don't exist.
>>
>> In order to count a countable set, you have to start at 1.
>>
>> Regards, WM
>>
> 
> Right, so the countable numbers have ONE end that can be used to count 
> from.

What about the signed integers? Well, we can always start from origin, 
at 0. ;^)


> 
> You can count UP to infinity by counting up.
> 
> You can't count DOWN from infinity, as there is no place to start.