Saturday, May 15, 2021

Digest for comp.lang.c++@googlegroups.com - 3 updates in 3 topics

olcott <NoOne@NoWhere.com>: May 15 02:52PM -0500

To overcome the pathological self-reference error of the conventional
halting problem proofs we simply define halt decider H such that every
input P to halt decider H that itself calls H has the same halting value
as the halting value as input P2 adapted from input P where all calls to
H have been replaced with calls to Simulate.
 
We can see that on the basis of this corrected criteria the actual Linz
H would correctly decide not halting on the actual Linz Ĥ shown on page
319. http://www.liarparadox.org/Peter_Linz_HP(Pages_315-320).pdf
 
 
 
Does the simulation of input P by simulating (at least partial) halt
decider H have to be stopped to prevent the infinite execution of P?
 
void H_Hat(u32 P)
{
u32 Input_Halts = Halts(P, P);
if (Input_Halts)
HERE: goto HERE;
}
 
THIS IS A TRUISM:
If the simulation never needs to be stopped then we can swap
Simulate(P,P) for Halts(P,P) and it will stop otherwise we know that the
simulation must have needed to have been stopped at some point.
 
http://www.liarparadox.org/Halting_problem_undecidability_and_infinitely_nested_simulation.pdf
 
 
 
--
Copyright 2021 Pete Olcott
 
"Great spirits have always encountered violent opposition from mediocre
minds." Einstein
Christian Gollwitzer <auriocus@gmx.de>: May 15 12:28PM +0200

https://vc.ptb.de/TestWeiden?jwt=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJQVEJWQyIsInN1YiI6InZjLnB0Yi5kZSIsImV4cCI6MTYyMzY2NjQzMi43NTUsImF1ZCI6IkRGTkNsaWVudENlcnQiLCJyb29tIjoiVGVzdFdlaWRlbiIsImNvbnRleHQiOiIifQ.FMb6k_0M6T6aZyvoEAGOQp4w7TaSAtx59wBvU3Yqzmk
Steve Robertson <steve_o_1985@hotmail.com>: May 14 04:53PM -0700

On 12/25/2020 7:06 AM, Rick C. Hodgin wrote:
> Many have forgotten the true meaning of CHRISTmas.  It goes like this:
 
Wrong newsgroup you fucking idiot.
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