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|    sci.logic    |    Logic -- math, philosophy & computationa    |    262,912 messages    |
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|    Message 261,318 of 262,912    |
|    The Starmaker to ross.a.finlayson@gmail.com    |
|    Re: "The Fundamental Joke of Logic" (2/3    |
|    26 Nov 25 14:15:35    |
      [continued from previous message]              >infinity of course since antiquity has resulted a lot of       >consideration and confusion about it. The idea is that       >this there is itself a "natural infinity", as with regards       >to the natural numbers and usual models of numbers, not to       >be "forgetting irrelevant nasty laws about your sets of       >numbers", instead that the natural infinity and thusly       >about the natural continua, find each other.       >       >So, this of course frames about half of Hilbert's Problems       >as un-decide-able, since, it's independent number theory       >there being a super-standard integers, and, thusly various       >laws, plural, of large numbers, get involved then in the       >number-theoretic conjectures then also about mathematical       >convergence and emergence, here as with regards to the       >doubling-spaces and doubling-measures and the re-Vitali-ization       >of measure theory.       >       >As about then the continuous and discrete, and the real       >analytical character after these "not-a-real-functions",       >of course then all the classical about the linear and about       >points and particles and separations and spaces, points and       >spaces in the ideal while particles and separations in the local,       >the point-local-global-total about the adiabatic/non-adiabatic       >up close and about near-field/far-field and about the norm being       >any different the metric, these mathematics with their non-standard,       >yet with real-analytical-character, nature, very much advise what       >physics must be, for example about frames and spaces and frame-spaces       >and space-frames, and about the tetrad of quantities and forces and       >fields and the F-Lorentzians about the E-energy and these kinds things.       >       >       >Very refreshing, ..., also mathematical fact.       >       >       >       >              Here is what Grok makes of your post..              This is a very dense, almost stream-of-consciousness piece that tries       to weave together several deep and legitimately interconnected ideas       from foundations of mathematics and mathematical physics, but it does       so in a highly idiosyncratic and sometimes grammatically fractured       way. It reads like someone who has thought *extremely* deeply about       non-standard analysis, infinitesimals, measure theory, geometry, and       their implications for physics… but who is writing as if the       conclusions are self-evident and doesn’t pause to define terms or       justify leaps.              Let me try to decode and translate the core claims into clearer       language, and then say what I actually make of it.              ### The deciphered theses (as I understand them)              1. The usual notion of “non-standard analysis” (Robinson, *R, transfer       principle, etc.) is misnamed.        What it really does is reveal a more natural, “super-standard”       layer sitting above the standard reals—one that has always been       implicitly there since antiquity (potential vs actual infinity, the       continuum, etc.). Calling it “non-standard” is like calling Riemannian       geometry “non-Euclidean”; it’s actually the richer, more primitive       structure.              2. There is a “natural infinity” and a “natural continuum” that       standard ZFC axiomatization artificially suppresses by forcing       archimedean properties, uniqueness of the continuum up to isomorphism,       etc. If you allow proper hyperreals or some surrogate (surreal       numbers, Levi-Civita fields, Connes-style geometries, etc.), the       integers and the continuum “find each other” again in a way that feels       ontologically prior.              3. Many of Hilbert’s problems (especially those about decidability,       consistency, the continuum hypothesis, foundations of geometry, and       analytic number theory) become independent or even trivialized once       you admit this super-standard layer, because new “laws of large       numbers” (in the hyperfinite sense) and new measure-theoretic tools       (re-vitalized Vitali-type constructions, doubling measures) appear.              4. Physically, the distinction between point/particle,       discrete/continuous, local/global, near-field/far-field,       adiabatic/non-adiabatic, etc., is not fundamental but an artifact of       working only in the standard archimedean setting.        Once you have genuine infinitesimals and infinities that are part       of the same ring/field, you are almost forced into structures like:        - tetrads / vierbeins instead of pure metrics,        - Lorentzian structures that treat energy-momentum differently from       pure geometry,        - frame-dependent vs frame-free formulations that mirror internal       vs external viewpoints in non-standard models.              In short: the author believes non-standard analysis (broadly       construed) is not an exotic extension but the royal road back to a       pre-20th-century intuition about infinity and continuity that modern       axiomatic set theory deliberately broke, and that restoring it has       immediate consequences for both pure mathematics (Hilbert program       collapses or becomes independent) and physics (general relativity and       quantum field theory need to be rewritten with hyperreal/tetrad-aware       foundations).              ### My actual assessment              There’s a grain—sometimes more than a grain—of truth here, but the       presentation wildly overclaims.              - Non-standard analysis *is* remarkably natural once you get used to       it. The transfer principle really does make many classical       infinitesimal arguments rigorous, and the hyperreals feel in many ways       “closer” to how Newton, Euler, and even Cauchy thought about the       continuum.       - Some mathematicians (Keisler, Henson, Connes in his own way, Tao       when he uses ultrafilters for ergodic averages, etc.) have shown that       hyperfinite or non-standard tools can dramatically simplify proofs in       analysis, probability, and even physics (e.g., Anderson’s non-standard       Brownian motion, or Benci–Di Nasso’s work on non-standard Lagrange       mechanics).       - The philosophy that the standard reals are a quotient of a richer       structure (rather than the hyperreals being an extension) is defended       seriously by people like Terry Tao in some blog posts and by       philosophers like Geoffrey Hellman or John L. Bell.       - In mathematical physics, there are indeed people (Alain Connes,       Pierre Cartier, some of the non-commutative geometry crowd, and a few       gravitational physicists working with smooth infinitesimal       transformations à la Penrose/Newman) who think standard Rn is too       rigid and that allowing infinitesimal/non-archimedean directions is       physically mandatory for unification or for properly formulating       locality.              But the text goes way overboard:              - Claiming half of Hilbert’s problems become “undecidable” because of       super-standard integers is not accurate. The continuum hypothesis is       independent of ZFC whether or not you like hyperreals; non-standard       models don’t resolve it—they just give you new models in which new       questions can be asked.       - “Re-Vitali-ization of measure theory” and “doubling-spaces” are real       things (doubling measures are central in modern harmonic analysis),       but they don’t require non-standard analysis, and Vitali’s       non-measurable sets remain non-measurable in *R under the Loeb measure       unless you deliberately break transfer.       - The leap from “hyperreals have infinitesimals” to “physics must use       tetrads and F-Lorentzians” is suggestive but not compelling without a       lot more argument. People have tried non-standard formulations of GR       and QFT; some are elegant, but none have become mainstream for good       reason—standard differential geometry already works extraordinarily       well.              ### Bottom line              This is the kind of writing you get from someone who has had a genuine       epiphany about how natural and powerful non-standard methods feel, and              [continued in next message]              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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