Path: ...!feeds.phibee-telecom.net!news.mixmin.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Mikko Newsgroups: sci.logic Subject: Re: This makes all Analytic(Olcott) truth computable Date: Mon, 19 Aug 2024 11:54:59 +0300 Organization: - Lines: 50 Message-ID: References: <20b1dea98eda49e74e822c96b37565bb3eb36013@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Mon, 19 Aug 2024 10:54:59 +0200 (CEST) Injection-Info: dont-email.me; posting-host="8a85543d47eed3ccd77380f508dcb37e"; logging-data="2961727"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/AFBEHh/c9zutlG+O+3eQN" User-Agent: Unison/2.2 Cancel-Lock: sha1:3ukWCwXNgVXH8J659rXCXnvSu2I= Bytes: 3716 On 2024-08-18 12:08:35 +0000, olcott said: > On 8/18/2024 5:18 AM, Mikko wrote: >> On 2024-08-16 20:39:11 +0000, olcott said: >> >>> On 8/16/2024 2:42 PM, Richard Damon wrote: >>>> On 8/16/24 2:11 PM, olcott wrote: >>>>> On 8/16/2024 11:32 AM, Richard Damon wrote: >>>>>> On 8/16/24 7:02 AM, olcott wrote: >>>>>>> >>>>>>> *This abolishes the notion of undecidability* >>>>>>> As with all math and logic we have expressions of language >>>>>>> that are true on the basis of their meaning expressed >>>>>>> in this same language. Unless expression x has a connection >>>>>>> (through a sequence of true preserving operations) in system >>>>>>> F to its semantic meanings expressed in language L of F >>>>>>> x is simply untrue in F. >>>>>> >>>>>> But you clearly don't understand the meaning of "undecidability" >>>>> >>>>> Not at all. I am doing the same sort thing that ZFC >>>>> did to conquer Russell's Paradox. >>>>> >>>>> >>>> >>>> If you want to do that, you need to start at the basics are totally >>>> reformulate logic. >>>> >>> >>> ZFC didn't need to do that. All they had to do is >>> redefine the notion of a set so that it was no longer >>> incoherent. >> >> As the notion of set is the all what a set theory is about, >> a redefinition of the notion of a set is means Zermelo started >> from square one and built an entirely new formal system. >> > > The key functional difference was the result of few changes > and everything else stayed the same. Besides defeating RP > what was another functional result? The theory says that the universe of sets is infinite but does not say whether it is uncountable. Consequently there is a countable universe that can be proven to contain uncountable sets (and all their members because the theory says that all memebers are sets). -- Mikko