Within the sphere helix framework of the Riemann ζ function (V12, DOI: 10. 5281/zenodo. 20504171), this paper establishes the exact algebraic identity cos (tₚ) + cos (tq) = 1/R, translating the Goldbach condition p + q = 2R into the dynamical language of the sphere helix. The 1/R on the right side comes entirely from V = 1/2 — the signature of the ζ function in sphere helix dynamics. The argument combines the Gaussian spiral (prime intersection subset of two orthogonal curve families in the yz-projection), the non-vanishing ζ·β ≠ 0 (guaranteeing primes on the spiral), and the Gauss partition method (Dirichlet's theorem on primes in coprime classes + sphere symmetry preserving coprime classes under symmetric pairing), concluding that symmetric prime pairs are unavoidable for every even number. This paper, together with V12 (Riemann Hypothesis) and the Collatz paper (DOI: 10. 5281/zenodo. 20504449), shares the common foundation e^ (iπ) = −1. Bilingual: Chinese and English PDFs included.
Lixin Wang (Tue,) studied this question.