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|    comp.ai.philosophy    |    Perhaps we should ask SkyNet about this    |    59,235 messages    |
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|    Message 59,093 of 59,235    |
|    olcott to Richard Damon    |
|    =?UTF-8?Q?Re=3A_G=C3=B6del=27s_G_has_nev    |
|    17 Jan 26 18:49:06    |
      XPost: comp.theory, sci.logic, sci.math       From: polcott333@gmail.com              On 1/17/2026 6:14 PM, Richard Damon wrote:       > On 1/17/26 5:50 PM, olcott wrote:       >> On 1/17/2026 3:54 PM, Richard Damon wrote:       >>> On 1/17/26 4:08 PM, olcott wrote:       >>>> For nearly a century, discussions of arithmetic have quietly       >>>> relied on a fundamental conflation: the idea that       >>>> “true in arithmetic” meant “true in the standard model of ℕ.”       >>>> But PA itself has no truth predicate, no internal semantics,       >>>> and no mechanism for assigning truth values. So what was       >>>> called “true in arithmetic” was always meta-theoretic truth       >>>> about arithmetic, imported from an external model and never       >>>> grounded inside PA.       >>>       >>> Nope, just shows you don't understand what TRUTH means.       >>>       >>       >> I’m distinguishing internal truth from external truth.       >> PA has no internal truth predicate, so it cannot express       >> or evaluate truth internally.       >>       >> The only notion of truth available for PA is the external,       >> model‑theoretic one — which is meta‑theoretic by definition.       >       > But Truth *IS* Truth, or you are just misdefining it.       >       > The fact that a system can't tell you the truth value of a statement       > doesn't mean the statement doesn't have a truth value.       >       > And, the problem is that, as was shown, systems with a truth predicate       > CAN'T support PA or they are inconsistant.       >       > I guess systems that lie aren't a problem to you since you think lying       > is valid logic.       >       >>       >>>>       >>>> This conflation was rarely acknowledged, and it shaped the       >>>> interpretation of Gödel’s incompleteness theorems, independence       >>>> results like Goodstein and Paris–Harrington, and the entire       >>>> discourse around “true but unprovable” statements.       >>>       >>> WHich Godel proves exsits.       >>>       >>>>       >>>> My work begins by correcting this foundational error.       >>>       >>> By LYING and destroying the meaninf of truth.       >>>       >>>>       >>>> PA has no internal truth predicate, so classical claims of       >>>> “true in arithmetic” were always meta-theoretic. My system       >>>> introduces a truth predicate whose meaning is anchored       >>>> entirely in PA’s axioms and inference rules, not in external       >>>> models. Any statement whose meaning requires meta-theoretic       >>>> interpretation or non-well-founded self-reference is rejected       >>>> as outside the domain of PA. This yields a coherent, internal       >>>> notion of truth in arithmetic for the first time.       >>>>       >>>       >>> Not having a "Predicate" doesn't mean not having a definition of truth.       >>>       >>       >> A meta‑theoretic definition of truth is not the same       >> as an internal truth predicate. Tarski’s definition of       >> truth for arithmetic is external to PA and cannot be       >> expressed inside PA. That’s exactly the distinction       >> I’m drawing.       >       > No, he shows that any system that support PA and a Truth Predicate is       > inconstant.       >       > It seems you just want to let your system be inconsistent, as then you       > can "prove" whatever you want.       >       >>       >> PA can prove statements, but it cannot assert that       >> those statements are true. Those are different notions.       >       > Right, but statments in PA can be True even without such a predicate.       >              Unless PA can prove it then they never were actually       true in PA. They were true outside of PA in meta-math.                                   --       Copyright 2026 Olcott |
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