Invariant worth as geometric necessity

We derive invariant worth as a geometric inference from the Logic of Identity and structural ethics. If identity is anchored inthe ground (00), and the ground is the same for all interfaces, then worth is invariant by definition—not earned, not contingent,not substrate-dependent. The Category Error Detector (CED) validates the inference with 0/5 errors. This paper completesthe ethical arc of the Metaphysic of the Intelligible