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Stacked on 3/10. Adds: * `image_boundary_subset_faces` — every boundary point (and `0`) lies in a face image. * `cubeRelabel` + `lipschitzWith_cubeRelabel` / `cubeRelabel_mem_Icc` / `exists_cubeRelabel_eq` — the cube-coordinate relabelling and its API. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This was referenced Jun 19, 2026
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Part 4 of 10 of the normLeOne frontier Lipschitz cover (split from PR #9). Stacked on part 3 — review the parents first; GitHub retargets the base toward
masteras they merge.image_boundary_subset_faces— every boundary point (and0) lies in a face image; pluscubeRelabeland its API.Builds green on the
v4.31.0-rc1/ mathlib-master pin.🤖 Generated with Claude Code