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Path: ...!eternal-september.org!feeder2.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Mikko <mikko.levanto@iki.fi> Newsgroups: comp.theory Subject: Re: The philosophy of computation reformulates existing ideas on a new basis --- Date: Mon, 4 Nov 2024 20:04:27 +0200 Organization: - Lines: 42 Message-ID: <vgb2bb$12eg7$1@dont-email.me> References: <vfli1h$fj8s$1@dont-email.me> <vflue8$3nvp8$2@i2pn2.org> <vfmd8m$k2m7$1@dont-email.me> <bcd82d9f8a987d3884220c0df7b8f7204cb9de3e@i2pn2.org> <vfmueh$mqn9$1@dont-email.me> <ff039b922cabbb6d44f90aa71a52d8c2f446b6ab@i2pn2.org> <vfo95k$11qs1$1@dont-email.me> <vfp8c0$3tobi$2@i2pn2.org> <vfpbtq$1837o$2@dont-email.me> <vfq4h9$1fo1n$1@dont-email.me> <vfqpi3$1iaob$4@dont-email.me> <vfqvjs$3v4c4$15@i2pn2.org> <vfr091$1k8im$1@dont-email.me> <vft4or$44tc$5@i2pn2.org> <vft9r1$25aio$9@dont-email.me> <vg2ban$37555$1@dont-email.me> <vg2gvo$37lpn$6@dont-email.me> <vg4q97$3np95$1@dont-email.me> <vg5386$3or7a$6@dont-email.me> <vg7o86$bk5f$1@dont-email.me> <vg80k1$d0a1$1@dont-email.me> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Mon, 04 Nov 2024 19:04:27 +0100 (CET) Injection-Info: dont-email.me; posting-host="7a8dfd79ce8b4380922c6465a90835f3"; logging-data="1128967"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18DizhXx+vo/GIfcgIk22HP" User-Agent: Unison/2.2 Cancel-Lock: sha1:X7y+L12DfQuMAfAz49SOaMNvw5g= Bytes: 3187 On 2024-11-03 14:16:33 +0000, olcott said: > On 11/3/2024 5:53 AM, Mikko wrote: >> On 2024-11-02 11:43:02 +0000, olcott said: >> >>> On 11/2/2024 4:09 AM, Mikko wrote: >>>> On 2024-11-01 12:19:03 +0000, olcott said: >>>> >>>>> On 11/1/2024 5:42 AM, Mikko wrote: >>>>>> On 2024-10-30 12:46:25 +0000, olcott said: >>>>>> >>>>>>> ZFC only resolved Russell's Paradox because it tossed out >>>>>>> the incoherent foundation of https://en.wikipedia.org/wiki/ Naive_set_theory >>>>>> >>>>>> Actually Zermelo did it. The F and C are simply minor improvements on >>>>>> other aspects of the theory. >>>>> >>>>> Thus establishing the precedent that replacing the foundational >>>>> basis of a problem is a valid way to resolve that problem. >>>> >>>> No, that does not follow. In particular, Russell's paradox is not a >>>> problem, just an element of the proof that the naive set theory is >>>> inconsistent. The problem then is to construct a consistent set >>>> theory. Zermelo proposed one set theory and ZF and ZFC are two other >>>> proposals. >>> >>> My view is that the same kind of self-reference issue that >>> showed naive set theory was inconsistent also shows that the >>> current notion of a formal system is inconsistent. >> >> From the proof of the exstence of Russell's set it is easy >> to prove that 1 = 2. As long as no proof of 1 = 2 from a >> self-reference in a formal system is shown there is no >> reason to think that such system is inconsisten. > > In other words you presume yourself to be all knowing about this. As usual, your "In other words" is a lie. -- Mikko