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|    sci.logic    |    Logic -- math, philosophy & computationa    |    262,912 messages    |
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|    Message 262,682 of 262,912    |
|    olcott to Richard Damon    |
|    =?UTF-8?Q?Re=3A_G=C3=B6del=27s_G_has_nev    |
|    22 Jan 26 22:18:23    |
      XPost: sci.math, comp.theory       From: polcott333@gmail.com              On 1/22/2026 8:51 PM, Richard Damon wrote:       > On 1/22/26 7:33 PM, olcott wrote:       >> On 1/22/2026 6:17 PM, Richard Damon wrote:       >>> On 1/22/26 12:18 AM, olcott wrote:       >>>> On 1/21/2026 10:59 PM, Python wrote:       >>>>> Le 22/01/2026 à 04:54, olcott a écrit :       >>>>>> On 1/21/2026 9:37 PM, Richard Damon wrote:       >>>>>>> On 1/21/26 10:45 AM, olcott wrote:       >>>>>>>> On 1/21/2026 6:35 AM, Richard Damon wrote:       >>>>>>>>> On 1/20/26 11:54 PM, olcott wrote:       >>>>>>>>>> On 1/20/2026 10:04 PM, Richard Damon wrote:       >>>>>>>>>>> On 1/20/26 4:23 PM, olcott wrote:       >>>>>>>>>>>> On 1/19/2026 11:29 PM, Richard Damon wrote:       >>>>>>>>>>>>>> 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.       >>>>>>>>>>>>>       >>>>>>>>>>>>> Which shows that you don't understand what logic systems are.       >>>>>>>>>>>>>       >>>>>>>>>>>>> The don't "Decide" on truths, they DETERMINE what is true.       >>>>>>>>>>>>>       >>>>>>>>>>>>> Your problem is that either there is, or there isn't a       >>>>>>>>>>>>> finite length proof of the statement.       >>>>>>>>>>>>>       >>>>>>>>>>>>> Semantics can't change in a formal system, or they aren't       >>>>>>>>>>>>> really semantics.       >>>>>>>>>>>>>       >>>>>>>>>>>>> Your problem is you don't understand Godel statement, as it       >>>>>>>>>>>>> *IS* truth bearing as it is a simple statement with no       >>>>>>>>>>>>> middle ground, does a number exist that satisfies a given       >>>>>>>>>>>>> relationship. Either there is, or there isn't. No other       >>>>>>>>>>>>> possiblity.       >>>>>>>>>>>>>       >>>>>>>>>>>>> You confuse yourself by forgetting that words have actual       >>>>>>>>>>>>> meaning, and that meaning can depend on using the right       >>>>>>>>>>>>> context.       >>>>>>>>>>>>>       >>>>>>>>>>>>> Godel's G is a statement in the system PA.       >>>>>>>>>>>>>       >>>>>>>>>>>>> It is a statement about the non-existance of a natural       >>>>>>>>>>>>> number that satisfies a particular computable realtionship.       >>>>>>>>>>>>>       >>>>>>>>>>>>> It is a statement defined purely by mathematics and thus       >>>>>>>>>>>>> doesn't "depend" on other meaning.       >>>>>>>>>>>>>       >>>>>>>>>>>>> It is a mathematical FACT, that for this relationship, no       >>>>>>>>>>>>> matter what natural number we test, none will satisfy it,       >>>>>>>>>>>>> so its assertation that no number satisfies it makes it true.       >>>>>>>>>>>>       >>>>>>>>>>>> PA augmented with its own True(PA,x) and False(PA,x)       >>>>>>>>>>>> is a decider for Domain of every expression grounded       >>>>>>>>>>>> in the axioms of PA.       >>>>>>>>>>>       >>>>>>>>>>> No, it becomes inconsistant.       >>>>>>>>>>>       >>>>>>>>>>>>       >>>>>>>>>>>> A system at a higher level of inference than PA can       >>>>>>>>>>>> reject any expressions that define a cycle in the       >>>>>>>>>>>> directed graph of the evaluation sequence of PA       >>>>>>>>>>>> expressions. Then PA could test back chained inference       >>>>>>>>>>>> from expression x and ~x to the axioms of PA.       >>>>>>>>>>>>       >>>>>>>>>>>       >>>>>>>>>>> But there is no "cycle" in the statement of G. It is PURELY a       >>>>>>>>>>> statement of the non-existance of a number that satisfies a       >>>>>>>>>>> purely mathematic relationship (which has no meaning by       >>>>>>>>>>> itself in PA).       >>>>>>>>>>>       >>>>>>>>>>       >>>>>>>>>> Even the relationship cannot exist |
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