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|    sci.logic    |    Logic -- math, philosophy & computationa    |    262,912 messages    |
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|    Message 261,217 of 262,912    |
|    olcott to Python    |
|    Re: New formal foundation for correct re    |
|    25 Nov 25 18:38:21    |
      XPost: sci.math, comp.theory       From: polcott333@gmail.com              On 11/25/2025 6:18 PM, Python wrote:       > Le 26/11/2025 à 01:14, olcott a écrit :       >> On 11/25/2025 6:04 PM, Python wrote:       >>> Peter, every time someone points out that your system breaks Gödel by       >>> redefining truth as “things my system proves,” you reply that this is       >>> “a fundamentally different foundation,” as if giving a new name to       >>> the floor suddenly allowed you to float.       >>>       >>> Your new line — “Gödel incompleteness can only exist when syntax and       >>> semantics are divided” — is just the same move in a new hat. Gödel’s       >>> original 1931 proof is purely syntactic, requires zero model theory,       >>> and works even if you paint “SEMANTICS” on the side of the syntax       >>> with a big red brush. The diagonal argument doesn’t care about your       >>> ontology, your types, your Prolog unification, or how many decades       >>> you’ve stared at it.       >>>       >>> This is the whole problem: every time the theorem bites, you amputate       >>> the part of mathematics that hurts and say, “See, no wound!” You’ve       >>> solved incompleteness the same way a surgeon would solve mortality by       >>> outlawing death certificates.       >>>       >>> Your system makes True(x) computable exactly the way a shredder makes       >>> archival integrity computable: anything inconvenient simply becomes       >>> “not in the body of general knowledge expressible in language.” If       >>> Gödel sentences don’t fit, the bin is right there.       >>>       >>> That’s not “integrating semantics.”       >>> That’s declaring all troublesome meanings illegal.       >>>       >>       >> Perhaps you do not fully understand exactly what       >> semantic logical entailment is thus cannot directly       >> see how and why this totally eliminates undecidability       >> and undefinability. I have spent at least five full       >> time years on this one thing.       >>       >>> It’s a bold philosophical stance, sure.       >>> But it’s not mathematics.       >>       >> It is a brand new provably correct foundation       >> for correct reasoning that corrects all of the       >> shortcoming and incoherence of logic and math.       >       > Peter, every time you say “perhaps you do not fully understand semantic       > logical entailment,” it sounds like a man insisting that everyone else       > is holding the map upside down, while he proudly walks into the same       > lamp post for the fiftieth time.       >              Have you spent five full time years studying       the details of formalizing semantic logical       entailment directly in the formal system       with no need for a separate model theory?              > You keep repeating that five years of thinking have shown you how to       > “totally eliminate undecidability,” but undecidability is not a software       > bug you can delete with enough staring. It’s a mathematical theorem       > about computability. You cannot remove a proven limit by declaring, “My       > foundation does not believe in limits.”       >       > Your proposed cure — redefining truth as whatever your system can derive       > — is like solving the problem of unmeasurable sets by banning rulers.       > Yes, it “eliminates” the difficulty, but only in the same sense that       > closing your eyes eliminates the sun.       >       > Gödel’s syntactic diagonal argument does not care how many semantic       > stickers you glue on top. It applies to any consistent, effective,       > sufficiently expressive system.              It does not. It simply uses Gödel numbers in a system       woefully insufficiently expressive to say this tiny       little expression: G := (F ⊬ G)       meaning that G is defined as unprovable in F.              Gödel numbers merely hide the underlying unsound       inference.              Unless you can prove to me that you understand       what a directed graph of an evaluation sequence is       it will be assumed that you don't even have a       slight clue about this:              ?- G = not(provable(F, G)).       G = not(provable(F, G)).       ?- unify_with_occurs_check(G, not(provable(F, G))).       false.              That proves that this is semantically unsound:       G ↔ ¬Prov(⌜G⌝)              Failing to understand what I say counts as much less       than no rebuttal at all.              > If your system is effective and       > expressive, Gödel applies. If it’s not effective, you haven’t “solved       > undecidability”; you’ve stepped outside mathematics. If it’s not       > expressive enough to encode arithmetic, then it cannot be “the entire       > body of general knowledge.”       >       > Those are the only options.       >       > Claiming you’ve produced “a brand new provably correct foundation for       > correct reasoning” that fixes all shortcomings of logic and math is       > bold, certainly — but until you show a formal system rather than a       > proclamation, you are not correcting logic; you are advertising a logic-       > flavored product.       >       > Mathematics does not respond to ambition, only to proofs. So far, yours       > remain announcements.                     --       Copyright 2025 Olcott              My 28 year goal has been to make       "true on the basis of meaning" computable.              This required establishing a new foundation       for correct reasoning.              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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