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8ac5ce0c6f
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feat(lean): Sidon-orthogonality bypass closes operator-norm gap
Replaces the spectral-radius operator norm bound (left as
TODO(lean-port: operator_norm_bound)) with a computable L_infinity
row-sum norm over Fin 8, discharged by dec_trivial.
Key changes:
- crossingMatrix: Matrix (Fin 8) (Fin 8) Q with explicit Sidon entries
- maxRowSum: L_infinity row-sum norm, computed by Finset.sup
- crossing_matrix_norm_bound: maxRowSum <= 1775/1792 (dec_trivial)
- braid_operator_contractive: ||C*s||_oo <= r * ||s||_oo for r=1775/1792
- Removes deprecated EigensolidConvergenceHypothesis (now a theorem)
- Standalone formula doc: docs/reviews/SIDON_ORTHOGONALITY_BYPASS_FORMULA.md
- CONJECTURE_UPGRADE_ROADMAP.md updated (conjecture 1 resolved)
- BREAKGLASS_LOG.md: entry 2 logged
Sidon uniqueness (I4) guarantees at most 2 non-zero entries per row,
making the row-sum a concrete rational — no spectral theory required.
Build: 3307 jobs, 0 errors (lake build SilverSight)
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2026-06-26 23:36:55 -05:00 |
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