Path: news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: "Fred. Zwarts" Newsgroups: comp.theory Subject: Re: HHH(DD) does correctly reject its input as non-halting --- VERIFIED FACT Date: Sat, 14 Jun 2025 11:20:24 +0200 Organization: A noiseless patient Spider Lines: 67 Message-ID: <102jesp$3avt$1@dont-email.me> References: <102erpt$2ohps$5@dont-email.me> <102gqt1$3bhe0$2@dont-email.me> <102hd3h$3fnmh$3@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Sat, 14 Jun 2025 11:20:25 +0200 (CEST) Injection-Info: dont-email.me; posting-host="e6a1a9d2c4ec8df2ebbe13317fee6ee4"; logging-data="109565"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+QHr0+0drQpbwjB7X6Dz8m" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:xALT7CJeBhumlaJ//QklhBaco20= Content-Language: nl, en-GB In-Reply-To: <102hd3h$3fnmh$3@dont-email.me> Op 13.jun.2025 om 16:37 schreef olcott: > On 6/13/2025 4:26 AM, Fred. Zwarts wrote: >> Op 12.jun.2025 om 17:30 schreef olcott: >> >> Even after many corrections, Olcott repeated his claims without >> learning anything from his previous errors. >> Lack of knowledge does not make someone look stupid, but the >> resistance against learning does. >> >>> int DD() >>> { >>>    int Halt_Status = HHH(DD); >>>    if (Halt_Status) >>>      HERE: goto HERE; >>>    return Halt_Status; >>> } >>> >>> It is a verified fact that DD() *is* one of the forms >>> of the counter-example input as such an input would >>> be encoded in C. Christopher Strachey wrote his in CPL. >>> >>> // rec routine P >>> //   §L :if T[P] go to L >>> //     Return § >>> // https://academic.oup.com/comjnl/article/7/4/313/354243 >>> void Strachey_P() >>> { >>>    L: if (HHH(Strachey_P)) goto L; >>>    return; >>> } >>> >>> https://academic.oup.com/comjnl/article-abstract/7/4/313/354243? >>> redirectedFrom=fulltext >>> >>> It *is* a verified fact DD correctly simulated by HHH >>> cannot possibly reach its own "return" statement >>> final halt state. >> >> Showing the failure of HHH to reach the end of the simulation. > > The code of the input to HHH(DD) specifies > HHH simulates DD that calls HHH(DD) > HHH simulates DD that calls HHH(DD) > HHH simulates DD that calls HHH(DD)... Counter factual, There are only two recursions. Then HHH does a premature abort, missing the specification in the input that the simulated HHH would also do a premature abort and halt. That HHH is blind for this specification does not change the specification. So, the following applies to you: > > That you can't understand this is merely a lack > of sufficient tecnh9cal competence on your part. > > That you continue to fail to show all of the details > of exactly how DD does reach its simulated "return" > statement final halt state proves that you know you > are not competent. No, *you* fail to show how HHH reaches the correct end of the simulation. We see that HHH fails to reach the end of a correct simulation. That you think that a failure to reach the end of a simulation makes the simulation correct, shows that you do not understand the basics of a correct simulation.