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From: Mikko <mikko.levanto@iki.fi>
Newsgroups: comp.theory
Subject: Re: Why does Olcott care about simulation, anyway? --- Ben's Review
Date: Mon, 3 Jun 2024 17:27:21 +0300
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On 2024-06-03 12:20:01 +0000, olcott said:

> On 6/3/2024 4:42 AM, Ben Bacarisse wrote:
>> Mike Terry <news.dead.person.stones@darjeeling.plus.com> writes:
>> 
>>> PO's D(D) halts, as illustrated in various traces that have been posted here.
>>> PO's H(D,D) returns 0 : [NOT halting] also as illustrated in various traces.
>>> i.e. exactly as the Linz proof claims.  PO has acknowledged both these
>>> results.  Same for the HH/DD variants.
>>> 
>>> You might imagine that's the end of the matter - PO failed.  :)
>>> 
>>> That's right, but PO just carries on anyway!
>> 
>> He has quite explicitly stated that false (0) is the correct result for
>> H(D,D) "even though D(D) halts".  I am mystified why anyone continues to
>> discuss the matter until he equally explicitly repudiates that claim.
>> 
> 
> Deciders only compute the mapping *from their inputs* to their own
> accept or reject state.

That does not restrict what a problem statement can specify.
If the computed mapping differs from the specified one the
decider does not solve the problem.

-- 
Mikko