From: wyniijj5@gmail.com

On Thu, 2026-01-29 at 20:38 -0800, Keith Thompson wrote:
> wij  writes:
> [329 lines deleted]
> 
> Just a gentle reminder that this discussion, though it occasionally
> includes something that looks like C code, is not about C.

Depend on readers understanding.

> There's a related thread about the Collatz Conjecture in comp.theory.
> I encourage anyone who feels the need to discuss it to do so there --
> or at least not to do so here.

Agree.

When cases involve whether 'for/while' is better, or wheher indent-2/3/8 
should the standard -> preference issues are on topic.
When cases involve math/logic -> off topic.

I am talking about string processing(on-topic?), math/logic is not the fault. 
Whatever you do will end up to logic to be decidable.

https://sourceforge.net/projects/cscall/files/MisFiles/RealNumbe
2-en.txt/download
...
Axiom 1: Natural numbers are discrete symbols of finite length with a finite
         number of counting steps. 
Axiom 2: An object (e.g., number, form) and its (operational) properties exist
         simultaneously through definition.

All are manipulations of string.  Axiom 2 is stated in terms of OO (object).
Of course, understanding is another matter.

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