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From: Mikko <mikko.levanto@iki.fi>
Newsgroups: comp.theory
Subject: Re: Halting Problem is wrong two different ways
Date: Thu, 6 Jun 2024 11:45:21 +0300
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On 2024-06-05 17:09:18 +0000, olcott said:

> On 6/5/2024 12:03 PM, John Smith wrote:
>> On 5/06/24 04:16, olcott wrote:
>>> On 6/4/2024 9:12 PM, John Smith wrote:
>>>> On 5/06/24 04:05, olcott wrote:
>>>>> On 6/4/2024 8:48 PM, Richard Damon wrote:
>>>>>> But the question it asks is an OBJECTIVE question that doesn't depend 
>>>>>> on who it is asked of.
>>>>>> 
>>>>> 
>>>>> When H is asked about the behavior of a Machine that is programmed
>>>>> to do the opposite of whatever it says then the context that it is H
>>>>> that is being asked is an inherent aspect of the meaning of this
>>>>> question and cannot be correctly ignored.
>>>> 
>>>> Every machine does something. It either halts, or it doesn't. If a 
>>>> machine halts, then it halts even if you ask someone different. If the 
>>>> machine halts when I ask Bob whether it halts and he says it halts, 
>>>> then it still halts when I ask Alice whether it halts and she says it 
>>>> doesn't halt. Alice is wrong. The linguistic context doesn't change the 
>>>> fact that it halts.
>>> 
>>> Professor Hehner proves my same point with Carol's question.
>>> https://www.cs.toronto.edu/~hehner/OSS.pdf
>>> 
>>> Richard found a loophole that I fixed and told professor Hehner about:
>>> Can Carol correctly answer “no” to this (yes/no) question?
>>> 
>> 
>> It's not "Can Carol" - it's "Does Carol"
> 
> *Disagreeing with verified facts does not count as any rebuttal*
> I inserted "(yes/no)" to close the loophole that Richard found.

That addition does not constrain what Carol can say. Whether that
makes "Absolutely not" an incorrect answer is another problem.

-- 
Mikko