Path: news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: olcott Newsgroups: comp.theory,sci.logic,comp.ai.philosophy Subject: It has always been impossible to define an INPUT that does the opposite of its halt decider Date: Mon, 9 Jun 2025 18:10:02 -0500 Organization: A noiseless patient Spider Lines: 33 Message-ID: <1027pka$qb6d$1@dont-email.me> References: <1025i6j$afk6$1@dont-email.me> <1026i2q$h686$1@dont-email.me> <1026slo$j3rp$6@dont-email.me> <1026ta5$ipgg$1@dont-email.me> <1026ukn$k2tr$1@dont-email.me> <1026uuj$ipgg$2@dont-email.me> <1026vqt$kb6a$1@dont-email.me> <102703a$kcea$1@dont-email.me> <10270q6$ki5i$1@dont-email.me> <102715d$ipgg$3@dont-email.me> <10271sq$ki5i$2@dont-email.me> <10272c7$ipgg$4@dont-email.me> <10272o6$kt3u$1@dont-email.me> <10273h4$ipgg$6@dont-email.me> <102745p$lajf$1@dont-email.me> <10274cs$ipgg$7@dont-email.me> <10274ln$ldq3$1@dont-email.me> <102754h$ipgg$8@dont-email.me> <10275v1$lo22$1@dont-email.me> <102768b$ipgg$9@dont-email.me> <10276fd$lo22$2@dont-email.me> <10276pf$ipgg$10@dont-email.me> <10277j5$m30d$1@dont-email.me> <10278ai$ipgg$11@dont-email.me> <10279ha$mm0d$2@dont-email.me> <1027a5b$ipgg$12@dont-email.me> <1027c5c$nc63$2@dont-email.me> <1027dpf$ipgg$14@dont-email.me> <1027e1s$npoo$2@dont-email.me> <1027e6c$ipgg$16@dont-email.me> <1027gpq$ofnf$2@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Tue, 10 Jun 2025 01:10:04 +0200 (CEST) Injection-Info: dont-email.me; posting-host="668213ca1180824494e01b33326cf4e0"; logging-data="863437"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18+j4z+HJ9LTgtHChKYP9Tl" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:SX+GTYn74/Ek1mdXvIHGe5hu6/0= In-Reply-To: <1027gpq$ofnf$2@dont-email.me> Content-Language: en-US X-Antivirus-Status: Clean X-Antivirus: Norton (VPS 250609-4, 6/9/2025), Outbound message On 6/9/2025 3:39 PM, Richard Heathfield wrote: > > On 09/06/2025 20:54, dbush wrote: >>> If you would just be honest about the fact that you're not working on >>> the halting problem, people would stop bothering >>> you. > Well, I doubt if he'll ever do that, but we could stop bothering him > anyway. You'd be amazed at how much time you save. :-) > I have refuted the halting problem proofs the exact same way that ZFC refuted Russell's Paradox. The halting problem proof crucially depends on defining an *INPUT* that does the opposite of whatever value its corresponding halt decider returns. It is not possible to define such an *INPUT*. int main() { DDD(); // Is not an *INPUT* to the HHH(DDD) } // that this DDD calls. When Ĥ is applied to ⟨Ĥ⟩ Ĥ.q0 ⟨Ĥ⟩ ⊢* embedded_H ⟨Ĥ⟩ ⟨Ĥ⟩ ⊢* Ĥ.qy ∞ Ĥ.q0 ⟨Ĥ⟩ ⊢* embedded_H ⟨Ĥ⟩ ⟨Ĥ⟩ ⊢* Ĥ.qn The computation that embedded_H is embedded within is not an *INPUT* to embedded_H. -- Copyright 2025 Olcott "Talent hits a target no one else can hit; Genius hits a target no one else can see." Arthur Schopenhauer