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From: olcott <polcott333@gmail.com>
Newsgroups: comp.theory
Subject: Re: Anyone with sufficient knowledge of C knows that DD specifies
 non-terminating behavior to HHH
Date: Sun, 16 Feb 2025 16:08:10 -0600
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On 2/16/2025 3:52 PM, Richard Damon wrote:
> On 2/16/25 2:24 PM, olcott wrote:
>> On 2/16/2025 10:35 AM, joes wrote:
>>> Am Sun, 16 Feb 2025 06:51:12 -0600 schrieb olcott:
>>>> On 2/15/2025 2:49 AM, Mikko wrote:
>>>>> On 2025-02-14 12:40:04 +0000, olcott said:
>>>>>> On 2/14/2025 2:58 AM, Mikko wrote:
>>>>>>> On 2025-02-14 00:07:23 +0000, olcott said:
>>>>>>>> On 2/13/2025 3:20 AM, Mikko wrote:
>>>>>>>>> On 2025-02-13 04:21:34 +0000, olcott said:
>>>>>>>>>> On 2/12/2025 4:04 AM, Mikko wrote:
>>>>>>>>>>> On 2025-02-11 14:41:38 +0000, olcott said:
>>>>>>>>>>>
>>>>>>>>>>>>> Of course not. However, the fact that no reference to that
>>>>>>>>>>>>> article before or when HHH
>>>>>>>>>>>>
>>>>>>>>>>>> That paper and its code are the only thing that I have been
>>>>>>>>>>>> talking about in this forum for several years.
>>>>>>>>>>>
>>>>>>>>>>> Doesn't matter when you don't say that you are talking about 
>>>>>>>>>>> that
>>>>>>>>>>> paper.
>>>>>>>>>>>
>>>>>>>>>>> Anyway, that is irrelevant to the fact that the subject line
>>>>>>>>>>> contains a false claim.
>>>>>>>>>>
>>>>>>>>>> It is a truism and not one person on the face of the Earth can
>>>>>>>>>> possibly show otherwise.
>>>>>>>>>
>>>>>>>>> The fact that the claim on subject line is false is not a truism.
>>>>>>>>> In order to determine the claim is false one needs some knowledge
>>>>>>>>> that is not obvious.
>>>>>>>>
>>>>>>>> When you try to show the steps attempting to show that it is 
>>>>>>>> false I
>>>>>>>> will point out the error.
>>>>>>>
>>>>>>> Step 1: Find people who know C.
>>>>>>> Step 2: Show them DD of OP and ask.
>>>>>>>
>>>>>>>> This is the only topic that I will discuss and any
>>>>>>
>>>>>> typedef void (*ptr)();
>>>>>> int HHH(ptr P);
>>>>>> int DD()
>>>>>> {
>>>>>>     int Halt_Status = HHH(DD);
>>>>>>     if (Halt_Status)
>>>>>>       HERE: goto HERE;
>>>>>>     return Halt_Status;
>>>>>> }
>>>>>> int main()
>>>>>> {
>>>>>>     HHH(DD);
>>>>>> }
>>>>>> DD  correctly simulated by HHH cannot possibly terminate normally.
>>>>>
>>>>> That claim has already shown to be false. Nothing above shows that HHH
>>>>> does not return 0. If it does DD also returns 0.
>>>>>
>>>> When we are referring to the above DD simulated by HHH and not 
>>>> trying to
>>>> get away with changing the subject to some other DD somewhere else
>>> such as one that calls a non-aborting version of HHH
>>>
>>>> then
>>>> anyone with sufficient knowledge of C programming knows that no 
>>>> instance
>>>> of DD shown above simulated by any corresponding instance of HHH can
>>>> possibly terminate normally.
>>
>>> Well, then that corresponding (by what?) HHH isn’t a decider.
>>>
>>
>> Technically a decider is any TM that always stops running.
>> https://en.wikipedia.org/wiki/Decider_(Turing_machine)
>>
>> I am focusing on the isomorphic notion of a termination analyzer.
>> A simulating termination analyzer correctly rejects any input
>> that must be aborted to prevent its own non-termination.
>>
>>
> 
> 
> Right, but the answer given by the decider must match the problem.
> 

Any divergence from the above specification is stipulated
to be incorrect.

*This is the pathological input termination analyzer problem*
Some people might see this as isomorphic to other problems
and some people may not see this.

-- 
Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius
hits a target no one else can see." Arthur Schopenhauer