D4 Skin Reification and Tensor as History Errors

This paper establishes a boundary result identifying two recurrent category errors in closed admissible systems: the reification of representational skins and the treatment of tensor formalisms as historical or ontic records. It proves that skins are contingent representational layers and that tensors encode standing-preserving transformation rules, not physical history, dynamics, or ontological content. Attempts to read skins or tensors as historical traces or ontic structures are shown to introduce illicit scope transport, external reference dependence, or hidden parameterization, collapsing admissibility. The analysis is strictly eliminative and non-constructive: it introduces no new primitives, specifies no procedures, and provides no interpretive or operational framework. The result functions as a boundary theorem, blocking historical or ontological misreadings of representational machinery in closed systems.