Path: ...!eternal-september.org!feeder2.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Mikko Newsgroups: comp.theory Subject: Re: The philosophy of logic reformulates existing ideas on a new basis --- infallibly correct Date: Sun, 10 Nov 2024 11:42:39 +0200 Organization: - Lines: 37 Message-ID: References: <8c2cbbe343934d211ad8c820c963702e70351a27@i2pn2.org> <19d0838dd000cc4f67c8c64ac6005d5405cf2bd6@i2pn2.org> <4b24331953934da921cb7547b6ee2058ac9e7254@i2pn2.org> <2a5107f331836f388ad259bf310311a393c00602@i2pn2.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Sun, 10 Nov 2024 10:42:39 +0100 (CET) Injection-Info: dont-email.me; posting-host="aa6135c12195030876f9317ea3566320"; logging-data="353001"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18ZGqZ8F95SuMKfH7DhycaG" User-Agent: Unison/2.2 Cancel-Lock: sha1:UypfPheYqh9jkqoPlgXLB4Hkue0= Bytes: 3244 On 2024-11-09 14:45:12 +0000, olcott said: > On 11/9/2024 5:01 AM, joes wrote: >> Am Fri, 08 Nov 2024 18:39:34 -0600 schrieb olcott: >>> On 11/8/2024 6:33 PM, Richard Damon wrote: >>>> On 11/8/24 6:36 PM, olcott wrote: >>>>> On 11/8/2024 3:59 PM, Richard Damon wrote: >>>>>> On 11/8/24 4:17 PM, olcott wrote: >>>>>>> On 11/8/2024 12:31 PM, Richard Damon wrote: >>>>>>>> On 11/8/24 1:08 PM, olcott wrote: >>>>>>>>> On 11/8/2024 12:02 PM, Richard Damon wrote: >>>>>>>>>> On 11/8/24 12:25 PM, olcott wrote: >>>>>>>>>> >>>>>>>>>>> That formal systems that only apply truth preserving operations >>>>>>>>>>> to expressions of their formal language that have been >>>>>>>>>>> stipulated to be true cannot possibly be undecidable is proven >>>>>>>>>>> to be over-your-head on the basis that you have no actual >>>>>>>>>>> reasoning as a rebuttal. >> Gödel showed otherwise. > > That is counter-factual within my precise specification. > > When truth is only derived by starting with > truth and applying truth preserving operations > then unprovable in PA becomes untrue in PA. What that definition defines is usually not called "truth" but "theorem". The words "true" and "truth" are usually reserved for interpretations. > Everyone is so sure that whatever I say must be wrong Even you would think so if you could understand what your words really mean. -- Mikko