Path: ...!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: Anyone with sufficient knowledge of C knows that DD specifies non-terminating behavior to HHH Date: Sun, 16 Feb 2025 13:24:14 -0600 Organization: A noiseless patient Spider Lines: 79 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Sun, 16 Feb 2025 20:24:15 +0100 (CET) Injection-Info: dont-email.me; posting-host="c928bd9eb52e5cb5acf316a3ad4e5e6d"; logging-data="769096"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX198KvtVHReIlIoDRut/MDPY" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:sXLbrJGPX0UTVNmKojpwdVcV5sw= X-Antivirus-Status: Clean X-Antivirus: Norton (VPS 250216-4, 2/16/2025), Outbound message Content-Language: en-US In-Reply-To: Bytes: 4667 On 2/16/2025 10:35 AM, joes wrote: > Am Sun, 16 Feb 2025 06:51:12 -0600 schrieb olcott: >> On 2/15/2025 2:49 AM, Mikko wrote: >>> On 2025-02-14 12:40:04 +0000, olcott said: >>>> On 2/14/2025 2:58 AM, Mikko wrote: >>>>> On 2025-02-14 00:07:23 +0000, olcott said: >>>>>> On 2/13/2025 3:20 AM, Mikko wrote: >>>>>>> On 2025-02-13 04:21:34 +0000, olcott said: >>>>>>>> On 2/12/2025 4:04 AM, Mikko wrote: >>>>>>>>> On 2025-02-11 14:41:38 +0000, olcott said: >>>>>>>>> >>>>>>>>>>> Of course not. However, the fact that no reference to that >>>>>>>>>>> article before or when HHH >>>>>>>>>> >>>>>>>>>> That paper and its code are the only thing that I have been >>>>>>>>>> talking about in this forum for several years. >>>>>>>>> >>>>>>>>> Doesn't matter when you don't say that you are talking about that >>>>>>>>> paper. >>>>>>>>> >>>>>>>>> Anyway, that is irrelevant to the fact that the subject line >>>>>>>>> contains a false claim. >>>>>>>> >>>>>>>> It is a truism and not one person on the face of the Earth can >>>>>>>> possibly show otherwise. >>>>>>> >>>>>>> The fact that the claim on subject line is false is not a truism. >>>>>>> In order to determine the claim is false one needs some knowledge >>>>>>> that is not obvious. >>>>>> >>>>>> When you try to show the steps attempting to show that it is false I >>>>>> will point out the error. >>>>> >>>>> Step 1: Find people who know C. >>>>> Step 2: Show them DD of OP and ask. >>>>> >>>>>> This is the only topic that I will discuss and any >>>> >>>> typedef void (*ptr)(); >>>> int HHH(ptr P); >>>> int DD() >>>> { >>>>    int Halt_Status = HHH(DD); >>>>    if (Halt_Status) >>>>      HERE: goto HERE; >>>>    return Halt_Status; >>>> } >>>> int main() >>>> { >>>>    HHH(DD); >>>> } >>>> DD  correctly simulated by HHH cannot possibly terminate normally. >>> >>> That claim has already shown to be false. Nothing above shows that HHH >>> does not return 0. If it does DD also returns 0. >>> >> When we are referring to the above DD simulated by HHH and not trying to >> get away with changing the subject to some other DD somewhere else > such as one that calls a non-aborting version of HHH > >> then >> anyone with sufficient knowledge of C programming knows that no instance >> of DD shown above simulated by any corresponding instance of HHH can >> possibly terminate normally. > Well, then that corresponding (by what?) HHH isn’t a decider. > Technically a decider is any TM that always stops running. https://en.wikipedia.org/wiki/Decider_(Turing_machine) I am focusing on the isomorphic notion of a termination analyzer. A simulating termination analyzer correctly rejects any input that must be aborted to prevent its own non-termination. -- Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius hits a target no one else can see." Arthur Schopenhauer