Strong-CP Is No Problem: Why the Strong Force Does Not Violate CP, and No Axion Is Needed

One axiom. One operation. Zero free parameters. The strong force ought to violate CP (a theta-term giving the neutron an electric dipole moment), yet experiment bounds theta below ~10⁻¹⁰ for no apparent reason — the strong-CP problem. Its popular solution, the axion, posits a new particle. This paper forces theta to zero with no axion. There are exactly two distinguished CP positions: the fixed point, the One, where the phase is fold-invariant (alignment, no CP violation); and the self-antipode, the half-One, the unique fold preimage of the One (maximal CP violation). The strong sector sits at the aligned fixed point, so the strong force has no CP violation — theta is not a tiny tuned number but the aligned position itself. The weak sector sits at the antipode (maximal). theta = 0 is forced, not fine-tuned, and the axion is unnecessary. Machine-checked; reproduces from one command. A standalone result within the Smithian Fold Theory of Everything (SFTOE). Full corpus, code, and the run-it-yourself VERIFY.md protocol: https://github.com/MettaMazza/Smithian-Fold-Theory