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The consistency collision extractor: walks the ConsRec new-root fold in parallel with the honest size-n tree of D₁ and returns the concrete colliding node preimage pair at the first level where the fold's hnode argument pair diverges from the honest node — or none if the fold is genuine all the way down (binding holds). Both branches verified faithful to ConsRec's hnode argument order (n₀≤k: y' left / s right; n₀>k: s left / y' right). Termination via kbelow bounds. Deliberate honest checkpoint: the DEFINITION compiles and is cone-audited [propext, LTLAcc.sha256, Quot.sound]; the binding CORRECTNESS proof — the single hardest object in the corpus — is stage 3, kept for a fresh session rather than a rushed long turn. 22 certs green. LTL untouched. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> |
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| .. | ||
| gen/LTLAcc | ||
| Proofs | ||
| check.sh | ||
| lean-guard | ||