docs(ROADMAP): add Four-layer redesign section per PRESERVATION-DESIGN §12.5#259
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docs(ROADMAP): add Four-layer redesign section per PRESERVATION-DESIGN §12.5#259hyperpolymath wants to merge 1 commit into
Four-layer redesign section per PRESERVATION-DESIGN §12.5#259hyperpolymath wants to merge 1 commit into
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…IGN §12.5 Executes `formal/PRESERVATION-DESIGN.md` §12.5 — the ROADMAP rollout. Insert a new top-level section between the status snapshot and the formal-proof-status section titled `== Four-layer redesign (2026-05-26 → )`. The section structures the L1/L2/L3/L4 implementation order with a per-layer status: - L1 — Region capability threading: landed (judgment + step relation in `TypingL1.v` + `Semantics_L1.v`); 9 admits remain. - L2 — Modality parameter: landed (PRs #176 + #177); `linear_to_affine` Qed zero axioms. - L3 — Echo residue: calculus mechanised (`Echo.v`); typing-rule integration is next-block work. - L4 — Mode declaration: mechanical scaffold landed (`L4.v`); surface syntax not yet wired. Per the spec's §12.5 prescription, the previous "Preservation closure plan" framing is acknowledged as archived (pointing to `PRESERVATION-HANDOFF.md` for the historical record). The pre-existing `[#preservation-closure-plan]` section was already labelled superseded by a prior commit — this new top section provides the *forward-looking* organisation that the old framing lacked. No proof, code, workflow, or schema changes. Pure documentation rollout. Companion to README #256 (§12.2), EXPLAINME #257 (§12.3), and vision #258 (§12.4). Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Executes
formal/PRESERVATION-DESIGN.md§12.5 — the ROADMAP rollout.Inserts a new top-level section between the status snapshot and the formal-proof-status section titled
== Four-layer redesign (2026-05-26 → ), structuring the L1/L2/L3/L4 implementation order with a per-layer current status.What this provides that the existing file lacked
The pre-existing
[#preservation-closure-plan]section is already correctly labelled "superseded by four-layer redesign", but it only provides negative orientation (what was). This new section provides the positive organising structure (what is + what's next + per-layer status) the spec asks for.Per-layer status snapshot
linear_to_affineQed zero axioms.Echo.v); typing-rule integration is next-block work.L4.v); surface syntax not yet wired.Companion PRs
== The four layerssection per PRESERVATION-DESIGN §12.2 + L4 truth fix #256 — README §12.2 four-layers section== The Dyad and the Layersper PRESERVATION-DESIGN §12.4 #258 — vision §12.4 dyad-and-layersTest plan
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