Erdős Problem 1121 — qed.bot Claims, announcements and changes recorded against Erdős Problem 1121. https://qed.bot/feeds/s/erdos-1121.xml 2026-04-16T00:00:00Z qed.bot Erdős Problem 1121 — full (Aristotle) urn:qed:f1db7c3ac2b3 2026-04-16T00:00:00Z Goodman and Goodman (1945). Autonomy A1, evidence V1, fidelity F2.