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From: Mikko <mikko.levanto@iki.fi>
Newsgroups: comp.theory
Subject: Re: V5 --- Professor Sipser --- Execution trace of simulating termination analyzer HHH on DDD input
Date: Sun, 25 Aug 2024 10:51:11 +0300
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On 2024-08-24 20:08:05 +0000, olcott said:

> On 8/24/2024 2:44 PM, Fred. Zwarts wrote:
>> Op 24.aug.2024 om 15:21 schreef olcott:
>>> On 8/24/2024 3:47 AM, Fred. Zwarts wrote:
>>>> Op 23.aug.2024 om 23:40 schreef olcott:
>>>>> On 8/23/2024 2:24 AM, joes wrote:
>>>>>> Am Thu, 22 Aug 2024 12:42:59 -0500 schrieb olcott:
>>>>> 
>>>>>> Only IF it will in fact keep repeating, which is not the case.
>>>>> 
>>>>> Only IF it *WOULD* in fact keep repeating, *which is the case*
>>>>> Only IF it *WOULD* in fact keep repeating, *which is the case*
>>>>> Only IF it *WOULD* in fact keep repeating, *which is the case*
>>>>> Only IF it *WOULD* in fact keep repeating, *which is the case*
>>> 
>>>> It is the case only if you still cheat with the Root variable, which 
>>>> makes that HHH processes a non-input, when it is requested to predict 
>>>> the behaviour of the input.
>>> 
>>> <MIT Professor Sipser agreed to ONLY these verbatim words 10/13/2022>
>>>      If simulating halt decider H correctly simulates its input D
>>>      until H correctly determines that its simulated D would never
>>>      stop running unless aborted then
>>> 
>>>      H can abort its simulation of D and correctly report that D
>>>      specifies a non-halting sequence of configurations.
>>> </MIT Professor Sipser agreed to ONLY these verbatim words 10/13/2022>
>>> 
>>> The fact is that it *WOULD* in fact keep repeating,
>>> thus *IT DOES* get the correct answer.
>> 
>> The fact is that it only happens because you make it so with cheating 
>> with the Root variable.
> 
> That THE DECISION IS CORRECT makes moot how the decision was made.
> If HHH simply took a wild guess HHH would still be correct.

To say "no" about a halting program means that what said "no"
is not a halt decider.

-- 
Mikko