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Failed to connect to MySQL: (1203) User howardkn already has more than 'max_user_connections' active connectionsPath: ...!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 16:51:36 -0600 Organization: A noiseless patient Spider Lines: 72 Message-ID: References: <3b8a5f4be53047b2a6c03f9678d0253e137d3c40@i2pn2.org> <5cd9bc55c484f10efd7818ecadf169a11fcc58e1@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Sun, 16 Feb 2025 23:51:37 +0100 (CET) Injection-Info: dont-email.me; posting-host="c928bd9eb52e5cb5acf316a3ad4e5e6d"; logging-data="845340"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/awQvgmlyrCJodm3rnXOxg" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:+ogeH26bzCE7n/lxTAosH/wn7jc= Content-Language: en-US X-Antivirus-Status: Clean X-Antivirus: Norton (VPS 250216-4, 2/16/2025), Outbound message In-Reply-To: <5cd9bc55c484f10efd7818ecadf169a11fcc58e1@i2pn2.org> Bytes: 4781 On 2/16/2025 4:30 PM, joes wrote: > Am Sun, 16 Feb 2025 15:58:14 -0600 schrieb olcott: >> On 2/16/2025 2:02 PM, joes wrote: >>> Am Sun, 16 Feb 2025 13:24:14 -0600 schrieb olcott: >>>> 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: > >>>>>>>> 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. >>>> I am focusing on the isomorphic notion of a termination analyzer. >>> (There are other deciders that are not termination analysers.) >>> >>>> A simulating termination analyzer correctly rejects any input that >>>> must be aborted to prevent its own non-termination. >>> Yes, in particular itself is not such an input, because we *know* that >>> it halts, because it is a decider. You can’t have your cake and eat it >>> too. >> I am not even using the confusing term "halts". >> Instead I am using in its place "terminates normally". >> DD correctly simulated by HHH cannot possibly terminate normally. > What’s confusing about „halts”? I find it clearer as it does not imply > an ambiguous „abnormal termination”. How does HHH simulate DD > terminating abnormally, then? Why doesn’t it terminate abnormally > itself? > You can substitute the term: the input DD to HHH does not need to be > aborted, because the simulated decider terminates. > 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); } Every simulated input that must be aborted to prevent the non-termination of HHH is stipulated to be correctly rejected by HHH as non-terminating. Copyright 2024 Olcott "Talent hits a target no one else can hit; Genius hits a target no one else can see." Arthur Schopenhauer