Formal Verification of the 7-Color Chromatic Number of the Plane via Toroidal Projection and the Irrationality of 2π.
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Updated
Jul 20, 2026 - Lean
Formal Verification of the 7-Color Chromatic Number of the Plane via Toroidal Projection and the Irrationality of 2π.
Verified T650 forcing gadget and 1,299-vertex Moser-spindle-free 5-chromatic unit-distance graph
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