I Used Codex to Pursue χ(R²) ≥ 6 on September 10. OpenAI’s Claimed Proof Is Dated September 23. What Could OpenAI See?
On September 10th, I was using Codex to work on the Hadwiger Nelson problem. My main target was χ(R²)=7. My second target was explicit: construct a finite unit distance graph that is “not 5-colorable,” proving χ(R²)≥6. One of their manuscripts from September 23rd is titled The Euclidean plane is no…
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