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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 logic reformulates existing ideas on a new basis --- infallibly correct Date: Thu, 14 Nov 2024 10:52:23 +0200 Organization: - Lines: 53 Message-ID: <vh4do7$2nskp$1@dont-email.me> References: <vfli1h$fj8s$1@dont-email.me> <vgmb06$3e37h$1@dont-email.me> <2a5107f331836f388ad259bf310311a393c00602@i2pn2.org> <vgnsho$3qq7s$2@dont-email.me> <vgo157$n00$1@news.muc.de> <vgo4ia$3sfle$1@dont-email.me> <vgo7ri$30iv$1@news.muc.de> <vgo89i$3t6n8$1@dont-email.me> <vgoand$2464$1@news.muc.de> <vgobg7$3tnrn$2@dont-email.me> <vgodcf$kll$1@news.muc.de> <vgoed9$3ucjr$1@dont-email.me> <vgoi51$kll$2@news.muc.de> <vgojp1$3v611$1@dont-email.me> <vgol50$kll$3@news.muc.de> <vgom8r$3vue8$1@dont-email.me> <vgonlv$kll$4@news.muc.de> <vgoqv6$qht$2@dont-email.me> <vgq0dv$1trm$1@news.muc.de> <vgqifj$e0q0$2@dont-email.me> <vgqnfl$2ca0$1@news.muc.de> <vgqt2v$gdj5$2@dont-email.me> <vgr04c$dfn$1@news.muc.de> <vgr3vt$hf6i$2@dont-email.me> <vgr5fv$dfn$2@news.muc.de> <vh0nm0$1qvhf$1@dont-email.me> <vh2472$1hv7$1@news.muc.de> <vh2fih$28i10$1@dont-email.me> <0941e4fb91bd3b3e4bd33172fe70a3b44d72018c@i2pn2.org> <vh2lbt$29o46$2@dont-email.me> <fe913820d50b586ed0e4525e9cd54e2af09e7028@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Thu, 14 Nov 2024 09:52:24 +0100 (CET) Injection-Info: dont-email.me; posting-host="458a725cfcbad5272e19bd3e144605a2"; logging-data="2880153"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18ehFyT9YE7jQec+gNpR0ZX" User-Agent: Unison/2.2 Cancel-Lock: sha1:DV1cdFactJNLd3P27yW9JT/FJ9g= Bytes: 4180 On 2024-11-14 01:09:18 +0000, Richard Damon said: > On 11/13/24 11:50 AM, olcott wrote: >> On 11/13/2024 10:33 AM, joes wrote: >>> Am Wed, 13 Nov 2024 09:11:13 -0600 schrieb olcott: >>>> On 11/13/2024 5:57 AM, Alan Mackenzie wrote: >>>>> olcott <polcott333@gmail.com> wrote: >>>>>> On 11/10/2024 2:36 PM, Alan Mackenzie wrote: >>>>>>> olcott <polcott333@gmail.com> wrote: >>>>>>>> On 11/10/2024 1:04 PM, Alan Mackenzie wrote: >>> >>>>>>>>> I have addressed your point perfectly well. Gödel's theorem is >>>>>>>>> correct, >>>>>>>>> therefore you are wrong. What part of that don't you understand? >>>>>>>> YOU FAIL TO SHOW THE DETAILS OF HOW THIS DOES NOT GET RID OF >>>>>>>> INCOMPLETENESS. >>>>>>> The details are unimportant. Gödel's theorem is correct. Your ideas >>>>>>> contradict that theorem. Therefore your ideas are incorrect. Again, >>>>>>> the precise details are unimportant, and you wouldn't understand them >>>>>>> anyway. Your ideas are as coherent as 2 + 2 = 5. >>>>> >>>>>> Incomplete(L) ≡ ∃x ∈ Language(L) ((L ⊬ x) ∧ (L ⊬ ¬x)) When the above >>>>>> foundational definition ceases to exist then Gödel's proof cannot >>>>>> prove incompleteness. >>> >>>>> What on Earth do you mean by a definition "ceasing to exist"? Do you >>>>> mean you shut your eyes and pretend you can't see it? >>>>> Incompleteness exists as a concept, whether you like it or not. >>>>> Gödel's theorem is proven, whether you like it or not (evidently the >>>>> latter). >>>>> >>>> When the definition of Incompleteness: >>>> Incomplete(L) ≡ ∃x ∈ Language(L) ((L ⊬ x) ∧ (L ⊬ ¬x)) >>>> becomes >>>> ¬TruthBearer(L,x) ≡ ∃x ∈ Language(L) ((L ⊬ x) ∧ (L ⊬ ¬x)) >>>> Then meeting the criteria for incompleteness means something else >>>> entirely and incompleteness can no longer be proven. >> >>> What does incompleteness mean then? >>> >> >> Incompleteness ceases to exist the same way that Russell's >> Paradox ceases to exist in ZFC. > > Not until your create your logic system like Z & F did to make ZFC. It wouldn't be that simple. Zermelo and Fraenkel accepted ordinary logic but Olcott wants to reject that so he would need to start with building a new logical foundation. -- Mikko