Orientability poincare
v256_orientability_poincare.py · registry
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PS.NCG.ORIENT.01 — orientability and Poincaré duality treated honestly (no faked proof). KO-dim 6 forces the intersection form cap(p,q)=Tr(γ π(p) J π(q) J⁻¹) to be antisymmetric. [E] skew form forced by Jγ=−γJ + order-zero + reality (verified); [E] on the SM K-theory Z³ the skew form has rank 2, corank 1, null ~ (1,1,−1) — the structural obstruction; [E] orientability local condition [γ_F,π(a)]=0, full orientability is a degree-4 cycle on M×F; [C] the canonical hypercharge-faithful SM/PS triple satisfies both (van Suijlekom; CCM) — literature; [O] a self-contained machine proof needs the complete canonical bimodule.
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