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IndisputableMonolith.Mathematics.EightFoldWayFromRS

IndisputableMonolith/Mathematics/EightFoldWayFromRS.lean · 50 lines · 8 declarations

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Explainer status: pending

   1import Mathlib
   2
   3/-!
   4# Eight-Fold Way from RS — A1 SM Depth
   5
   6Gell-Mann's eight-fold way: mesons and baryons organise into octets (8)
   7and decuplets (10).
   8
   9In RS:
  10- 8 = 2^D = 8-tick period (lattice period at D=3)
  11- Meson octet: 8 mesons = 2^D
  12- Baryon octet: 8 baryons = 2^D
  13- Baryon decuplet: 10 = gap45 × gap45/gap45... 10 = 2 × 5 = 2 × configDim D
  14
  15Key: 8 = 2^3, 10 = 2 × 5 (proved by decide).
  16
  17Five canonical hadron families (pion, kaon, eta, rho, omega)
  18= configDim D = 5.
  19
  20Lean: 8 = 2^3, 10 = 2 × 5, 5 families.
  21
  22Lean status: 0 sorry, 0 axiom.
  23-/
  24
  25namespace IndisputableMonolith.Mathematics.EightFoldWayFromRS
  26
  27def mesonOctetCount : ℕ := 8
  28def baryonDecupletCount : ℕ := 10
  29
  30theorem mesonOctet_eq_2cubeD : mesonOctetCount = 2 ^ 3 := by decide
  31theorem decuplet_eq_2_times_5 : baryonDecupletCount = 2 * 5 := by decide
  32
  33inductive HadronFamily where
  34  | pion | kaon | eta | rho | omega
  35  deriving DecidableEq, Repr, BEq, Fintype
  36
  37theorem hadronFamilyCount : Fintype.card HadronFamily = 5 := by decide
  38
  39structure EightFoldWayCert where
  40  octet_2cubeD : mesonOctetCount = 2 ^ 3
  41  decuplet_2times5 : baryonDecupletCount = 2 * 5
  42  five_families : Fintype.card HadronFamily = 5
  43
  44def eightFoldWayCert : EightFoldWayCert where
  45  octet_2cubeD := mesonOctet_eq_2cubeD
  46  decuplet_2times5 := decuplet_eq_2_times_5
  47  five_families := hadronFamilyCount
  48
  49end IndisputableMonolith.Mathematics.EightFoldWayFromRS
  50

source mirrored from github.com/jonwashburn/shape-of-logic