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From: WM <wolfgang.mueckenheim@tha.de>
Newsgroups: sci.math
Subject: Re: The set of necessary FISONs
Date: Sat, 12 Apr 2025 15:20:12 +0200
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On 11.04.2025 19:59, Richard Damon wrote:

> 
> But the number of Natural Numbers isn't itself a Natural Number, so that 
> doesn't contradict the statement.

The number of definable natural numbers is potentially infinite. All 
fractions having definable denominators can be removed from the harmonic 
series. The remaining terms remain infinite nevertheless.

The number of all natural numbers is actually infinite. Removing all 
terms of the harmonic series having natural denominators yields the sum 0.

Regards, WM