Erdős Problem 453 — qed.bot Claims, announcements and changes recorded against Erdős Problem 453. https://qed.bot/feeds/s/erdos-453.xml 2026-01-31T00:00:00Z qed.bot Erdős Problem 453 — full (Aristotle) urn:qed:fe5383fcf439 2026-01-31T00:00:00Z Pomerance (1979). Autonomy A1, evidence V1, fidelity F2.