Three-Phase Power as Prime Manifestation: Why 30° Works

NOTICE OF SUPERSESSION — Paper 13 v2.0. This version supersedes v1.5 (January 2026). The structural insights v1.5 gestured at — three-phase power as ℤ[ω] arithmetic; 120° phase separation as Pisano-period-3 forced; the icosahedral correspondence with rotating-field topology — have been properly developed in current-discipline papers in the 2I Universe Programme: - Paper 171, The 120° Derivation (10.5281/zenodo.19263413)- Paper 175, The Golden Motor (10.5281/zenodo.19283645)- Paper 198, What Eisenstein Was Tracking (10.5281/zenodo.20069158) Errata in v1.5 (adversarial review, May 2026, 2★): (i) Factual error in §5.1 — the claim that D = 3 is "the only value satisfying D(D+1) = 2·D!" is false; D = 1 also…