03-ilang-space / 03-witness-distance
03witness distanceverified
Summary Defines points and a distance from the witness data in the view of a part, and asks how far the choice of the distance is fixed.
# External verification: 03-witness-distance - **Subproject:** 03-ilang-space - **Package:** 03-witness-distance - **Verified version:** v1 - **External round:** 1 of 2 - **Date:** 2026-10-08T16:48:34+02:00 - **Focus points:** none --- VERDICT: correct ## Summary The quotient construction, phase and label invariance, and witness-angle metric are correctly justified. The explicit construction realizes every triangle triple under condition (R), and the derivation correctly identifies why the question’s illustrative sufficient condition is inadequate by itself. The characterization of metric transforms, the candidate classifications and counterexamples, and the additivity result for metric transforms are sound. ## Issues None. ## Focus points None given.