Path: ...!eternal-september.org!feeder2.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: olcott Newsgroups: comp.theory Subject: Re: Verified facts regarding the software engineering of DDD, HHH, and HHH1 --- Date: Sat, 26 Oct 2024 12:39:49 -0500 Organization: A noiseless patient Spider Lines: 39 Message-ID: References: <2a210ab064b3a8c3397600b4fe87aa390868bb12@i2pn2.org> <4c67570b4898e14665bde2dfdf473130b89b7dd4@i2pn2.org> <94449dae60f42358ae29bb710ca9bc3b18c60ad7@i2pn2.org> <0553e6ab73fa9a21f062de4d645549ae48fd0a64@i2pn2.org> <8e17863681e1f32f132966f41699e57e5c322b41@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Sat, 26 Oct 2024 19:39:50 +0200 (CEST) Injection-Info: dont-email.me; posting-host="f00999e9e0e5447cf99e873d021c7ec9"; logging-data="4014279"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/QgI4i+NTAfBSkEsKm5bFL" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:OgDbBzKFMQUr/QwEK4aBUK4/tYg= X-Antivirus: Norton (VPS 241026-4, 10/26/2024), Outbound message X-Antivirus-Status: Clean Content-Language: en-US In-Reply-To: Bytes: 3810 On 10/26/2024 12:35 PM, joes wrote: > Am Sat, 26 Oct 2024 11:25:39 -0500 schrieb olcott: >> On 10/26/2024 10:52 AM, Richard Damon wrote: >>> On 10/26/24 11:44 AM, olcott wrote: >>>> On 10/26/2024 10:35 AM, Richard Damon wrote: >>>>> >>>>> Right, and either it follows the rules of the x86 language and NEVER >>>>> stop, or it disobeys the requirements of the x86 language to stop its >>>>> emulaiton and return. >>>>> >>>> In other words after all of these years you still don't get this: >>>>     "simulating halt decider H correctly simulates its input D >>>>     until" >>>> Repetition to help your ADD see what it keeps missing. Repetition to >>>> help your ADD see what it keeps missing. Repetition to help your ADD >>>> see what it keeps missing. >>> >>> But it fails to meet the requirements, because your logic presumes that >>> HHH will never abort. >>> >> Not at all. In the hypothetical case where HHH never aborts then DDD >> never stops running. > Why hypothetical? The HHH that *this* DDD here calls does abort. > *The best selling author of theory of computation textbooks* 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. -- Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius hits a target no one else can see." Arthur Schopenhauer