Equality as Identity or Common Projector Predecessor

This research preprint tests whether Equality as Identity / Common Projector–Predecessor can be derived as a restricted consequence of the existing OUXSPACE 3+3 principles and five negative postulates, not imposed as an additional axiom. Equality of observed invariants alone proves neither identity nor a unique generator. We therefore specify a physically admissible state class, branch dynamics, projection fibers, identifiability conditions, and independent falsification controls. Electron/positron and electron/proton readouts, characteristic propagation, curved-membrane geometry, and the possible role of 11 spatial coordinates remain distinct mathematical tasks. The four typed zeros, TERRA/ZERRA residual order, R+2 mediation, original English figures and the Kant–Laplace–Hegel–Marx discussion are retained. Unproved physical bridges are explicitly marked OPEN.