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From: Richard Damon <richard@damon-family.org>
Newsgroups: sci.math
Subject: Re: Incompleteness of Cantor's enumeration of the rational numbers
 (extra-ordinary)
Date: Thu, 2 Jan 2025 08:26:41 -0500
Organization: i2pn2 (i2pn.org)
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On 1/2/25 6:52 AM, WM wrote:
> On 01.01.2025 15:47, FromTheRafters wrote:
>> WM wrote :
> 
>>> The collection of definable natural numbers (FISONs) is closed under 
>>> multiplication
>>
>> How can that be?
> 
> Potential infinity.
> 
> Regards, WM
> 

Whicn means it never ends, and doesn't have a highest member.

IF you limit that "potential" you are no longer closed.