This paper introduces the Readout Non-Equivalence Theorem as a foundational formal statement of Shadow Theory. The theorem distinguishes exact bounded readout or shadow presentations from source-level realization-structure equivalence. In this framework, a shadow is not false, illusory, or invalid; it is a rigorous projected/readout interface whose internal laws may be fully valid at their own level, while still failing to be equivalent to the deeper realization package from which it is read out. The paper proves, within a bounded formal setting, that an exact quotient/readout presentation does not by itself imply realization-structure equivalence when no admissible faithful recovery exists. This establishes the core non-equivalence principle of Shadow Theory: readout-level exactness and source-level realization equivalence are distinct claims. The work also situates the theorem in continuity with the author’s earlier Everything Equation programme, where law-level closure was represented schematically by L = Omega Delta partialL, with Tier-1 physical and mathematical descriptions treated as downstream realizations through source-side, selection, and boundary/readout operations. The present paper does not rely on that programme as an assumption; rather, it isolates and proves the formal non-equivalence principle that the earlier architecture used operationally. This version is intended as a public v1 priority release and cornerstone statement for the broader Shadow Theory framework.
Jeremy Rodgers (Tue,) studied this question.