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From: olcott <polcott333@gmail.com>
Newsgroups: comp.theory,sci.logic,comp.ai.philosophy
Subject: Re: HHH(DD) does correctly reject its input as non-halting ---
VERIFIED FACT
Date: Sat, 14 Jun 2025 08:38:48 -0500
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On 6/14/2025 4:10 AM, Fred. Zwarts wrote:
> Op 13.jun.2025 om 17:53 schreef olcott:
>> On 6/13/2025 5:51 AM, Mikko wrote:
>>> On 2025-06-12 15:30:05 +0000, olcott said:
>>>
>>>> int DD()
>>>> {
>>>> int Halt_Status = HHH(DD);
>>>> if (Halt_Status)
>>>> HERE: goto HERE;
>>>> return Halt_Status;
>>>> }
>>>>
>>>> It is a verified fact that DD() *is* one of the forms
>>>> of the counter-example input as such an input would
>>>> be encoded in C. Christopher Strachey wrote his in CPL.
>>>>
>>>> // rec routine P
>>>> // §L :if T[P] go to L
>>>> // Return §
>>>> // https://academic.oup.com/comjnl/article/7/4/313/354243
>>>> void Strachey_P()
>>>> {
>>>> L: if (HHH(Strachey_P)) goto L;
>>>> return;
>>>> }
>>>>
>>>> https://academic.oup.com/comjnl/article-abstract/7/4/313/354243?
>>>> redirectedFrom=fulltext
>>>
>>> Strachey only informally presents the idea of the proof. Formalism
>>> and details needed in a rigorous proof is not shown.
>>>
>>
>> void DDD()
>> {
>> HHH(DDD);
>> return;
>> }
>>
>> _DDD()
>> [00002192] 55 push ebp
>> [00002193] 8bec mov ebp,esp
>> [00002195] 6892210000 push 00002192
>> [0000219a] e833f4ffff call 000015d2 // call HHH
>> [0000219f] 83c404 add esp,+04
>> [000021a2] 5d pop ebp
>> [000021a3] c3 ret
>> Size in bytes:(0018) [000021a3]
>>
>> Exactly how would DDD correctly emulated by HHH
>> reach its own "ret" instruction final halt state?
>
> Indeed, HHH fails where other world-class simulators have no problem to
> simulate the program specified in the input.
>
So you still don't understand what recursive simulation is?
--
Copyright 2025 Olcott "Talent hits a target no one else can hit; Genius
hits a target no one else can see." Arthur Schopenhauer