Erdős Problem 280 — qed.bot Claims, announcements and changes recorded against Erdős Problem 280. https://qed.bot/feeds/s/erdos-280.xml 2026-04-18T00:00:00Z qed.bot Erdős Problem 280 — full (Aristotle) urn:qed:45dc719f68b9 2026-04-18T00:00:00Z Cambie (2025). Autonomy A1, evidence V1, fidelity F2.