Commit graph

2 commits

Author SHA1 Message Date
c19b8da9d1 feat(semisym): §0 discriminator — Δ₃ verdict PROPER (∇R≠0, R·R≠L·Q); roadmap §0 active
0a: static Fisher–Rao on Δ₃ proven constant-curvature 1/4, ∇R≡0 (symbolic).
0b: rossbyDriftFromChirality drift-flip metric has signature (2,1), drift
direction time-like at 3 exact rational points.
0c: drift-flipped metric is PROPER — not locally symmetric (108 nonzero
∇R components at centroid, exact), not semisymmetric, not Deszcz-
pseudosymmetric (inconsistent L ratios at two points).
0d: obstruction is carried by the drift direction.
Refutes the semi-symmetry hypothesis for the drift-FLIP geometrization at
m=4; Randers/torsion geometrizations and the m=8 Sidon-block case remain
open (Δ₇ run pending).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-03 04:53:45 -05:00
8ac5ce0c6f 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)
2026-06-26 23:36:55 -05:00