Original ledger status
SEAM.EQUIV.CLOSURE.01
SEAM.EQUIV.CLOSURE.01
THE CLOSURE-MODE CLASSIFICATION OF THE ONE OPEN ARROW L2 (the seam-orbifold realisation, v346) -- a direct honest answer to 'is there ANY other way to FULLY solve it?' (2026-06-22). [E] THE PRECISE LOCUS OF L2: the seam DIRECTLY gives (from the mu4 clock + four marks) the pillowcase base S^2(2,2,2,2), a EUCLIDEAN orbifold chi_orb = 2 - 4(1-1/2) = 0 (flat, v216/v325); but the 2I/E8 structure is the Seifert fibration over the icosahedral base S^2(2,3,5), a SPHERICAL orbifold chi_orb = 2 - (1/2+2/3+4/5) = 1/30 > 0. So L2 must bridge a FLAT 4-marked base (the seam mu4) to a SPHERICAL 3-marked base (the carrier (2,3,5) atoms) -- two different geometric types; this is WHY L2 needs the carrier input and is nontrivial. [E] FOUR CLOSURE MODES: L2 is a 'physics-realises-geometry' statement, with exactly four closure modes -- A CONSTRUCT (build the continuum scaling limit, R1/v336, the analytic wall); B RIGIDITY (prove the seam data RP+quasi-free+gap+mu4+four marks admit a UNIQUE realisation so C^2/2I is forced with no extra input; the only theorem-route w/o new physics, pursued Troyanov v284 / flat-away v300 / necessity-of-H v331); C AXIOM (accept L2 as a third postulate P3, the seam-identification, exactly as c3=P1 and g_car=P2; then TFPT is COMPLETE relative to three axioms, the role 'c=const' plays in relativity); D EMPIRICAL (test the consequences delta_PMNS=240/theta13/the frozen predictions; physics validates axioms by consequences not proof). [E] NO-NEW-STATE BLOCKS DERIVATION: TFPT adds no gauge-charged state and posits no further dynamical input (tfpt_3/v246), so L2 cannot be DERIVED from additional physics -- the only theorem-route is rigidity (B); otherwise L2 is axiom (C) + empirical (D). [E] VERDICT: there is NO route making L2 a free theorem with zero input; 'fully solve it' = exactly one of (B) a rigidity theorem (the only theorem-route, genuine open math, the most promising new route) or (C) accept axiom P3 (then complete relative to 3 axioms), either way validated by (D) empirics; other routes exist but only these four, and only B closes L2 as a theorem. [O] NOT CLOSED: classifies the modes and locates the difficulty; does NOT prove L2. Actionable: the rigidity route (B) -- 'the seam data uniquely force the flat pillowcase to lift to the C^2/2I orbifold' -- is the single theorem-path worth pursuing.
Recorded status: Analysis/roadmap [E]/[O] (the flat->spherical base locus; four closure modes; no free theorem; only rigidity B or axiom P3; NOT closed)
Dependencies, status detail and source
Canonical status: [E] the orbifold-Euler-characteristic locus (flat seam base vs spherical icosahedral base) + the closure-mode enumeration + the no-new-state blocking; [O] L2 itself. An analysis/roadmap; closes nothing, fabricates nothing -- it answers 'are there other ways to fully solve it' by enumerating all four modes and the honest verdict (only rigidity B as a theorem, else axiom P3).
Dependencies: SEAM.EQUIV.GEOM.01; v216; v284; v300; v331; v246; v336
Scripts: v347_seam_closure_modes.py
Location: origin_theory
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