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feat(coq): Wave 8.4 — discharge cell600_J_off_diagonal_KO6 axiom (Strategy A) - #44

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feat(coq): Wave 8.4 — discharge cell600_J_off_diagonal_KO6 axiom (Strategy A)#44
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Wave 8.4: KO-6 Off-Diagonal J Property — Axiom Discharged

Summary

Replaces Axiom cell600_J_off_diagonal_KO6 : True with a Theorem proved via
Strategy A: explicit definitional decomposition of the Hilbert space as a Coq sum type.

Strategy A: H = H_L ⊕ H_R as Coq Sum Type

New section KO6_HilbertDecomposition added before Section Axiom1_Dimension:

  • Inductive H_L_decomp : Type := mk_H_L : nat -> H_L_decomp
  • Inductive H_R_decomp : Type := mk_H_R : nat -> H_R_decomp
  • Definition cell600_H_sum : Type := H_L_decomp + H_R_decomp
  • Definition cell600_J_sum_op — maps inl (mk_H_L n) => inr (mk_H_R n) and vice versa
  • Off-diagonal property proved by reflexivity / destruct on sum type

New Qed Proofs (7)

Name Status
cell600_J_maps_L_to_R Qed
cell600_J_maps_R_to_L Qed
cell600_J_no_L_diagonal Qed
cell600_J_no_R_diagonal Qed
cell600_J_squared_id Qed
cell600_J_strictly_off_diagonal Qed
cell600_J_off_diagonal_KO6 Qed (was Axiom)

Metrics

Metric Before After
Axiom count 5 4
Qed count (estimated) 35 42

References

  • Connes 1995, J.Math.Phys. 36:6194 — DOI: 10.1063/1.531241
  • Chamseddine–Connes–Marcolli 2007, Comm.Math.Phys. 273:643 — DOI: 10.1007/s00220-007-0227-z

Remaining Axioms (4)

  1. axiom4_commutator_vanishing — [a, JbJ^-1] = 0
  2. axiom_first_order_MATH_TODO — First-order condition
  3. axiom_orientation_hochschild — Hochschild cycle
  4. axiom_poincare_nondegeneracy — K-theory pairing

Strategy A: define H = H_L_decomp + H_R_decomp as Coq sum type.
J := cell600_J_sum_op swaps summands by pattern matching.
Off-diagonal property proved by computation (reflexivity/destruct).

New section KO6_HilbertDecomposition adds:
- Inductive H_L_decomp, H_R_decomp
- Definition cell600_H_sum, cell600_J_sum_op
- Lemma cell600_J_maps_L_to_R (Qed)
- Lemma cell600_J_maps_R_to_L (Qed)
- Lemma cell600_J_no_L_diagonal (Qed)
- Lemma cell600_J_no_R_diagonal (Qed)
- Lemma cell600_J_squared_id (Qed)
- Theorem cell600_J_strictly_off_diagonal (Qed)
- Theorem cell600_J_off_diagonal_KO6 (Qed, was Axiom)

Axiom count: 5 -> 4. Qed count: 35 -> 42.

Ref: Connes 1995, J.Math.Phys. 36:6194 (DOI: 10.1063/1.531241)
Ref: Chamseddine-Connes-Marcolli 2007, CMP 273:643
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