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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: olcott Newsgroups: comp.theory Subject: Re: DDD simulated by HHH cannot possibly halt (Halting Problem) Date: Sun, 13 Apr 2025 14:52:10 -0500 Organization: A noiseless patient Spider Lines: 49 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Sun, 13 Apr 2025 21:52:11 +0200 (CEST) Injection-Info: dont-email.me; posting-host="c6de87fcdac1591df8ecb20ec2568017"; logging-data="3759171"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19pGVbLf2tDM/SbbPf1HnAY" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:/lhbSNfwQ7CToNL36pmtYJKK6hE= Content-Language: en-US In-Reply-To: X-Antivirus-Status: Clean X-Antivirus: Norton (VPS 250413-8, 4/13/2025), Outbound message Bytes: 3577 On 4/13/2025 4:18 AM, joes wrote: > Am Wed, 09 Apr 2025 15:35:30 -0500 schrieb olcott: >> On 4/9/2025 1:58 PM, Fred. Zwarts wrote: >>> Op 09.apr.2025 om 19:29 schreef olcott: >>>> On 4/8/2025 10:31 AM, Fred. Zwarts wrote: >>>>> Op 08.apr.2025 om 17:13 schreef olcott: >>>>>> On 4/8/2025 2:45 AM, Fred. Zwarts wrote: >>>>>>> Op 08.apr.2025 om 06:33 schreef olcott: > >>>>>>>> *Simulating termination analyzer Principle* >>>>>>>> It is always correct for any simulating termination analyzer to >>>>>>>> stop simulating and reject any input that would otherwise prevent >>>>>>>> its own termination. >>>>>>> >>>>>>> In this case there is nothing to prevent, because the finite string >>>>>>> specifies a program that halts. >>>>>> >>>>>> int DD() >>>>>> { >>>>>>    int Halt_Status = HHH(DD); >>>>>>    if (Halt_Status) >>>>>>      HERE: goto HERE; >>>>>>    return Halt_Status; >>>>>> } >>>>>> HHH(DD) meets the above: *Simulating termination analyzer Principle* >>>>>> >>>>> Everyone with a little bit of C knowledge understands that if HHH >>>>> returns with a value 0, then DDD halts. >>>> >>>> DDD CORRECTLY SIMULATED BY HHH NOT ANY OTHER DAMN DDD IN THE UNIVERSE >>>> NITWIT. >>>> >>> If HHH would correctly simulate DD (and the functions called by DD) >>> then the simulated HHH would return to DD and DD would halt. >>> But HHH failed to complete the simulation of the halting program, >> >> HHH is only required to report on the behavior of its own correct >> simulation (meaning the according to the semantics of the C programming >> language) and would be incorrect to report on any other behavior. > Such as what actually happens when you run it? > Why do you insist on dishonestly ignoring the pathological self-reference difference? -- Copyright 2025 Olcott "Talent hits a target no one else can hit; Genius hits a target no one else can see." Arthur Schopenhauer