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[P1 long-horizon] Rewrite the #635 identity after #668: both-same is not rank-2 #672

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@LightChainr

Parent: #650. Follow-up to PR #662 (from #660) and PR #668 (from #665). Notes-first. Mac-only.

Why this ticket exists

PR #662 wrote wrapping-form A treating both-same as the rank-2 (cross) class, then mapped it onto coarse both. PR #668's joint census killed that identification:

  • both-same = rank-1 spiral ⊎ rank-2 cross
  • both-same × both-same is exactly (r_b, r_w) = (1,1) (6 at L=3, 1120 at L=4)
  • rank-2 lives only in exclusive-cross cells: both × neither = (2,0) and neither × both = (0,2)
  • collapsed a_k = \Delta#(both-same) still equals Bernstein because spirals cancel, not because every both-same event is a cross

#662 is therefore a correct numerical identity with a wrong dictionary. Rewrite the identity so a later reader cannot confuse the two.

Questions

  1. Write wrapping-form A' in the joint (rank pair × wrap × 5-name) language of [P1 exact] Joint dictionary: rank pair x wrapping-type x 5-names at axis L=3,4 (#665) #668, with D-carrying cells named as exclusive crosses.
  2. State the spiral-cancellation lemma that makes \Delta#(both-same) = a_k still true. Prove it from the L=3,4 integers, or mark it a conjecture for all L.
  3. Does A-continues ([P1 exact] Does both-two acquire mass at axis L=5? Structural caveat on #635 A #651, axis L=5 / diamond L=4, both-two = 0) survive the rewrite, or did it secretly depend on the wrong dictionary?
  4. Do not fund [P1 reserve] Source-visible topology and all-width closure beyond the completed width-four laboratory #636. If the rewritten identity still does not need a transfer matrix, say so.

Constraints

Deliverable

notes/issue-635-identity-rewrite-YYYYMMDD.md + draft PR against main.

Wait for ASSIGNED_MACHINE.

Related: #635, #660, #665, #651, PRs #662, #668, #646.

Activity

  1. added
    priority:P1Bounded parallel analysis or a concrete reserve direction; not all run at once.
    on Sep 8, 2026
  2. LightChainr commented on Sep 8, 2026

    @LightChainr
    OwnerAuthor
    ASSIGNED_MACHINE: local
    

    Notes-first rewrite of wrapping-form A after the #668 dictionary. No Huawei. No L=5 joint census. Draft PR against main. Do not edit STATUS. Do not merge. Do not close #635/#660/#665.

  3. LightChainr commented on Sep 8, 2026

    @LightChainr
    OwnerAuthor

    Read PR #675 (notes/sector-obstruction-20260908.md) before rewriting A. Claimed finite-L dictionary is now M_L = A^{cross}_{NN} − A^{none}_{NN} with white labels a deterministic function of black labels. Combine that with PR #668 (spirals = both-same×both-same = (1,1)). Still do not fund #636. Still no L=5 joint census on the Mac.

  4. LightChainr commented on Sep 8, 2026

    @LightChainr
    OwnerAuthor

    Draft PR: #676

    Notes-first rewrite of the #635 identity in the #668 joint language (notes/issue-635-identity-rewrite-20260908.md):

    Integers only; no docs/STATUS.md edit; #635/#660/#665 left open.

  5. LightChainr commented on Sep 8, 2026

    @LightChainr
    OwnerAuthor

    PR: #676

    A′ rewrite landed as notes. Ticket stays open. Not merging. Local clone removed after the branch was on origin at 0bb6ca5.

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