Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: olcott Newsgroups: comp.theory Subject: Re: Who knows that DDD correctly simulated by HHH cannot possibly reach its own return instruction final state? Date: Mon, 5 Aug 2024 19:07:41 -0500 Organization: A noiseless patient Spider Lines: 67 Message-ID: References: <735401a612caec3eedb531311fd1e09b3d94521d@i2pn2.org> <5ee8b34a57f12b0630509183ffbd7c07804634b3@i2pn2.org> <950d4eed7965040e841a970d48d5b6f417ff43dc@i2pn2.org> <4-qdnbdw1JzlRS37nZ2dnZfqlJydnZ2d@giganews.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Tue, 06 Aug 2024 02:07:42 +0200 (CEST) Injection-Info: dont-email.me; posting-host="198d92f6295c39b86c65eb128f10a699"; logging-data="1238605"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+E4AND5GLejzksJB+Y0qDw" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:wjcKg6c6BTobwGEeg7VT2dasMZo= Content-Language: en-US In-Reply-To: Bytes: 3896 On 8/5/2024 5:59 PM, Richard Damon wrote: > On 8/5/24 9:49 AM, olcott wrote: >> On 8/5/2024 2:39 AM, Mikko wrote: >>> On 2024-08-04 18:59:03 +0000, olcott said: >>> >>>> On 8/4/2024 1:51 PM, Richard Damon wrote: >>>>> On 8/4/24 9:53 AM, olcott wrote: >>>>>> On 8/4/2024 1:22 AM, Fred. Zwarts wrote: >>>>>>> Op 03.aug.2024 om 18:35 schreef olcott: >>>>>>  >>>> ∞ instructions of DDD correctly emulated by HHH[∞] never >>>>>>>> reach their own "return" instruction final state. >>>>>>>> >>>>>>>> So you are saying that the infinite one does? >>>>>>>> >>>>>>> >>>>>>> Dreaming again of HHH that does not abort? Dreams are no >>>>>>> substitute for facts. >>>>>>> The HHH that aborts and halts, halts. A tautology. >>>>>> >>>>>> void DDD() >>>>>> { >>>>>>    HHH(DDD); >>>>>>    return; >>>>>> } >>>>>> >>>>>> That is the right answer to the wrong question. >>>>>> I am asking whether or not DDD emulated by HHH >>>>>> reaches its "return" instruction. >>>>> >>>>> But the "DDD emulated by HHH" is the program DDD above, >>>> >>>> When I say DDD emulated by HHH I mean at any level of >>>> emulation and not and direct execution. >>> >>> If you mean anything other than what the words mean you wihout >>> a definition in the beginning of the same message then it is >>> not reasonable to expect anyone to understand what you mean. >>> Instead people may think that you mean what you say or that >>> you don't know what you are saying. >>> >> >> If you don't understand what the word "emulate" means look it up. >> >> DDD (above) cannot possibly reach its own "return" instruction halt >> state when its machine code is correctly emulated by HHH. >> > > Only because an HHH that does so never returns to anybody. > Do you really not understand that recursive emulation isomorphic to infinite recursion? void Infinite_Recursion() { Infinite_Recursion(); return; } Does infinite recursion ever reach its own "return" instruction halt state? -- Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius hits a target no one else can see." Arthur Schopenhauer