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Path: ...!feeds.phibee-telecom.net!3.eu.feeder.erje.net!feeder.erje.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Python <python@invalid.org> Newsgroups: comp.theory Subject: Re: I call it a halting decidability decider Date: Mon, 5 Aug 2024 15:44:03 +0200 Organization: CCCP Lines: 44 Message-ID: <v8qkv3$n73l$1@dont-email.me> References: <v8o47a$3ml4$1@dont-email.me> <v8q19o$iqvb$1@dont-email.me> <g7idnfxFzNYAIS37nZ2dnZfqlJydnZ2d@giganews.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Mon, 05 Aug 2024 15:44:03 +0200 (CEST) Injection-Info: dont-email.me; posting-host="0a4113a63a60183d521f9d33c087c395"; logging-data="760949"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/YUSpecMJ43WTKHNC4G3Ga" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:JBiYLqngzuOfEVmDL2MwVAtFXNY= Content-Language: en-US In-Reply-To: <g7idnfxFzNYAIS37nZ2dnZfqlJydnZ2d@giganews.com> Bytes: 2535 Le 05/08/2024 à 13:50, olcott a écrit : > On 8/5/2024 3:08 AM, Mikko wrote: >> On 2024-08-04 14:46:02 +0000, olcott said: >> >>> When we define an input that does the opposite of whatever >>> value that its halt decider reports there is a way for the >>> halt decider to report correctly. >>> >>> int DD() >>> { >>> int Halt_Status = HHH(DD); >>> if (Halt_Status) >>> HERE: goto HERE; >>> return Halt_Status; >>> } >>> >>> int main() >>> { >>> HHH(DD); >>> } >>> >>> HHH returns false indicating that it cannot >>> correctly determine that its input halts. >>> True would mean that its input halts. >> >> That is called a "partial halt decider". The set of requirements is >> a subset of the requirements for "halt decider" but still require >> that the answer is not "halts" if the input does not halt and that >> the answer is not "does not halt" if the input halts. The difference >> is that a "halt decider" is required to give one of these answers >> for every input but a "partial halt decider" is not. >> >> For every computation there is a partial halt decider that answers it. >> > > I call it a halting decidability decider. > 1=input halts > 0=input does not halt or has pathological relationship with its decider So it is NOT an halt decider. Case closed. You've lost your time for years, and made a lot of people lose their time too.