home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   sci.logic      Logic -- math, philosophy & computationa      262,912 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 262,619 of 262,912   
   olcott to Richard Damon   
   =?UTF-8?Q?Re=3A_G=C3=B6del=27s_G_has_nev   
   19 Jan 26 08:43:01   
   
   XPost: sci.math, comp.theory, comp.ai.philosophy   
   From: polcott333@gmail.com   
      
   On 1/19/2026 5:49 AM, Richard Damon wrote:   
   > On 1/18/26 11:28 PM, olcott wrote:   
   >> On 1/18/2026 9:56 PM, Richard Damon wrote:   
   >>> On 1/18/26 10:19 PM, olcott wrote:   
   >>>> On 1/18/2026 7:24 PM, Python wrote:   
   >>>>> Le 19/01/2026 à 00:41, olcott a écrit :   
   >>>>> ..   
   >>>>>> I already just said that the proof and refutation of   
   >>>>>> Goldbach are outside the scope of PA axioms.   
   >>>>>>   
   >>>>>> Any proof or refutation of Goldbach would have to use   
   >>>>>> principles stronger than the axioms of PA, because PA   
   >>>>>> itself does not currently derive either direction.   
   >>>>>   
   >>>>> "currently" ? ?  What kind of language is that? PA is what it is,   
   >>>>> it not changing with time !   
   >>>>>   
   >>>>> You could have said that about Fermat's theorem back in the day...   
   >>>>> It happens not to be the case.   
   >>>>>   
   >>>>> You are out of reason, Peter. Not only a liar, an hypocrite, but a   
   >>>>> fool.   
   >>>>>   
   >>>>   
   >>>> If its truth value cannot be determined in a finite   
   >>>> number of steps then it is not a truth bearer in PA,   
   >>>> otherwise it is a truth-bearer in PA with an unknown value.   
   >>>>   
   >>>   
   >>> So, you admit that you don't know how to classify it.   
   >>>   
   >>> Thus its truth-bearer status is unknown.   
   >>>   
   >>> Thus, your claim that it is outside of PA is just a LIE.   
   >>>   
   >>   
   >> No it was a mistake. Here is my correction:   
   >> If Goldbach's truth value cannot be determined in a   
   >> finite number of steps then it is not a truth bearer   
   >> in PA, otherwise it is a truth-bearer in PA with an   
   >> unknown truth value.   
   >>   
   >> This has no effect on my claim that I got rid of   
   >> Gödel Incompleteness.   
   >   
   > Sure it does. As your system is just not well founded by its own   
   > definitios,   
   >   
      
   My system is not supposed to decide in advance whether   
   Goldbach is well‑founded. A formula becomes a truth‑bearer   
   only when PA can classify it in finitely many steps.   
   Goldbach may or may not be classifiable; that’s an open   
   computational fact, not a semantic requirement. This has   
   no effect on Gödel, because Gödel’s sentence is structurally   
   non‑truth‑bearing, not merely unclassified.   
      
   >>   
   >> When we change the foundation of formal systems   
   >> to proof theoretic semantics and add my truth   
   >> predicates then Gödel's claim of applying to   
   >> every formal system that can do a little bit of   
   >> arithmetic becomes simply false.   
   >   
   > But you CAN'T do that and keep the systems.   
   >   
      
   I am keeping the systems.   
   I’m changing the semantics.   
   PA’s syntax, axioms, and rules stay exactly   
   the same. What changes is that truth is internal   
   - finite derivability - and external model‑theoretic   
   satisfaction is no longer imported into PA. Gödel’s   
   claim depends on that external semantics, so once it’s   
   removed, his universal claim simply doesn’t apply.   
      
   >>   
   >> Every attempt at showing incompleteness  PA   
   >> has never actually been  PA.   
   >   
   > Sure it is.   
   >   
   > Godel's G shows your system is not well founded.   
   >   
      
   Gödel’s G only “shows” anything if you assume   
   classical semantic truth in an external model.   
   My system does not use that semantics. Truth in   
   PA is finite derivability; anything PA cannot   
   classify is not a truth‑bearer.   
      
   Gödel’s G is therefore not a truth‑bearer, not   
   a counterexample, and not evidence of ill‑foundedness.   
   You’re evaluating my system using assumptions it   
   does not adopt.   
      
   >>   
   >> The satisfaction of external models of arithmetic   
   >> never has been  PA. These are categorically   
   >> outside of PA by the definition of proof theoretic   
   >> semantics thus defined as non-well-founded. This   
   >> neuters their ability to show incompleteness.   
   >>   
   >>   
   >   
   > But you system is just non-well-founded in PA.   
   >   
   > Godel's G has NO truth value, not even non-well-founded in PA by your   
   > system, and thus your system is broken.   
   >   
   > The problem is that for statements like it that have the property of not   
   > being having a known truth value if not provable, you system just breaks   
   > down.   
   >   
   > There is no proof of it being true, so it can't be true.   
   > There is no proof of it being false, so it can't be false.   
   > There is no proof of being not-well-founded, so it can't be non-well-   
   > founded.   
   >   
   > Your classification of claiming it to be non-well-founded is just non-   
   > well-founded.   
   >   
   > In fact, by your systems definitions, the claim of it being non-well-   
   > founded is non-well-founded as we can't prove it to be non-well-founded,   
   > as if it WAS not-well-founded, that means that you were able to prove   
   > that there wasn't a proof of it being false, which means there can't be   
   > a number that satisfies the requirement, as any number that existed   
   > forms an easy proof of falsehood, and thus must be true.   
   >   
   > So, there CAN'T be a proof of it not being well-founded.   
   >   
   > But if it isn't not-well-founded, then by your definition it must be   
   > True or False, which you already said it couldn't be.   
   >   
   > THus the only choice left is it not-well-founded that it is not-well-   
   > founded.   
   >   
   > But that arguement extends for that statement, so it is not-well-founded   
   > that the not-well-foundedness of the stsatement is not-well-founded.   
   >   
   > Thus, your system breaks with an infinite progression of not being able   
   > to classify the truth of the statement.   
   >   
   > So, the reason you think that Godel's (are related) proofs aren't well   
   > founded in PA is that your system is just not-well-founded in PA, but   
   > refuse to accept it,   
   >   
   > The problem is that definition of Truth is just incompatible with PA,   
   > which is why it can't be used.   
   >   
   > The problem is that the system has become "complex" enough that it   
   > inherently has grown bigger than provability of all things in it, and   
   > thus the concept of Truth being based on Provability just breaks as it   
   > means some things have undefinable (not just unknowable) truth values,   
   > they can't even be defined as not-having a truth value, as you can't   
   > prove that, but you insist that truth must be provable.   
   >   
   >   
      
   G is a truth bearer outside of PA in meta-math in the   
   same way that the Liar Paradox becomes true when it   
   refers to a different instance of itself.   
   This sentence is not true: "This sentence is not true"   
   is true because the inner sentence is not a truth bearer.   
      
      
   --   
   Copyright 2026 Olcott

              My 28 year goal has been to make
       "true on the basis of meaning expressed in language"
       reliably computable.

              This required establishing a new foundation
              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca