Skip to main content

A registered result in its source context

Original ledger classification: Formal

Recorded statement: LEAN: SEAM.EQUIV.01 COMPOSITION CHAIN (2026-06-22). Lean 4 formalisation (TfptCarrier/SeamEquivChain.lean) of the v308 closing chain: the four nodes GapPositive -> InvertibleSRE -> HolomorphicC8 -> SeamIsE8 assembled as a well-typed…

Statement, assumptions and sources

Paper context: Origin Theory

The exact identifier, original classification and full claim are available below.

The source wording and classification below are preserved as recorded. A paper link, shared script or authored topic relation does not upgrade the claim or report a new proof run. Read later reviewed findings separately.

Read the exact registered claim and its dependencies

FORM.SEAMEQUIV.01

Original ledger classification: Formal

Original claim text

LEAN: SEAM.EQUIV.01 COMPOSITION CHAIN (2026-06-22). Lean 4 formalisation (TfptCarrier/SeamEquivChain.lean) of the v308 closing chain: the four nodes GapPositive -> InvertibleSRE -> HolomorphicC8 -> SeamIsE8 assembled as a well-typed composition theorem seamEquivChain, with the three cited literature steps (Kitaev free-fermion invertibility; Mueger / Kawahigashi-Longo-Mueger holomorphy; Conway-Sloane E8 uniqueness) declared as named axioms and the carrier recovery gap (the OS step) as the single open input. #print axioms seamEquivChain confirms the residual is EXACTLY those named steps + recovery_gap (no hidden assumption). Plus a decide-proven discriminator: primariesE8=1 != primariesD8=4 (|det Cartan| distinguishes the holomorphic E8 from the same-central-charge rival D8=SO(16)). Built end-to-end (lake build, 3357 jobs) on Lean v4.29.1 + Mathlib. The VALUE is the machine-checked composition + the axiom audit (which pins the keystone residual to the named cited theorems + the one OS input), NOT a from-scratch proof of the cited steps -- so it does NOT close SEAM.EQUIV.01.

Original classification detail

[E] Lean-built: the well-typed composition seamEquivChain + the axiom audit (residual = the named cited theorems + the one OS input) + the decide-proven discriminator (1 != 4). A formal audit-contract skeleton of the v308 keystone chain; the three literature steps are named axioms (cited, not re-proved), so it MACHINE-PINS the residual but does NOT close SEAM.EQUIV.01.

Dependencies as recorded

SEAM.EQUIV.CHAIN.01; SEAM.EQUIV.01; SEAM.EQUIV.GAP.01

Open the original ledger source, row 423

Sections that explicitly cite this claim

A literal claim identifier is present in these paper sections. The section and its premises determine what the citation supports.

All 9 linked sections

Navigation through a shared verification script

These sections cite a script associated with the claim. This is a source navigation join, rather than an explicit citation of the claim or a theorem equivalence.

All 13 linked sections

Registered verification modules

  • v308_seam_equiv_chain.pyRegistered verification module · frontier
    Read the description recorded in the module registry

    TOE attack 1 -- the SEAM.EQUIV.01 keystone as a composition certificate: the v297 stack as ONE well-typed chain gap>0 -> invertible (Kitaev) -> holomorphic c=8 (Mueger/KLM) -> (E8)_1 (Conway-Sloane), with exact discriminators |det Cartan(E8)|=1 vs |det Cartan(D8)|=4, carrier tower 4*4=16->4->1, c=g_car+N_fam=8; the input gap = the derived recovery gap 6 ln(3/2)>0. The only undischarged premise is the cited OS step -- an assembly/reduction certificate (Lean target), NOT a closure

A registered module is a source reference. Its presence does not assert that the module was executed in this snapshot.