Ben thinks processor Sipser is wrong

Liste des GroupesRevenir à theory 
Sujet : Ben thinks processor Sipser is wrong
De : polcott333 (at) *nospam* gmail.com (olcott)
Groupes : comp.theory sci.logic
Date : 04. Jul 2024, 19:02:22
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <v66o3e$2rv8q$2@dont-email.me>
References : 1 2
User-Agent : Mozilla Thunderbird
<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>
On 10/14/2022 7:44 PM, Ben Bacarisse wrote:
I don't think that is the shell game.  PO really /has/ an H (it's
trivial to do for this one case) that correctly determines that P(P)
*would* never stop running *unless* aborted. 
...
But H determines (correctly) that D would not halt if it were not
halted.  That much is a truism. 
Ben clearly agrees that the above criteria have been met,
yet feels that professor Sipser was tricked into agreeing
that this means that:
     H can abort its simulation of D and correctly report that D
     specifies a non-halting sequence of configurations.
I spent two years deriving those words that Professor Sipser
agreed with. It seems to me that every software engineer would
agree that the second part is logically entailed by the first part.
--
Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius
hits a target no one else can see." Arthur Schopenhauer

Date Sujet#  Auteur
4 Jul 24 * Ben thinks processor Sipser is wrong3olcott
4 Jul 24 +- Re: Ben thinks processor Sipser is wrong1Richard Damon
5 Jul 24 `- Re: Ben thinks processor Sipser is wrong1joes

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