frontiers / frontier
e1271/1271 · statement.attested · reviewer:will-blair · 2026-06-10 · null→null
Reviewable change
back to reviewErdős Problem #44 remains OPEN. Statement: **Erdős Problem 44:** Let N ≥ 1 and `A ⊆ {1,…,N}` be a Sidon set. Is it true that, for any ε > 0, there exist M = M(ε) and `B ⊆ {N+1,…,M}` such that `A ∪ B ⊆ {1,…,M}` is a Sidon set of size at least `(1−ε)M^{1/2}`? This problem asks whether any Sidon set can be extended to achieve a density arbitrarily close to the optimal density for Sidon sets. Topics: number theory, sidon sets, additive combinatorics. Erdős prize: no. Statement is machine-verified in Lean (formal-conjectures). OEIS: N/A.
A proposal; no authority until an accepted review event.
accept gate
0 of 4 on recordtimeline
vpr_ec6741d1fdc57665SEMANTIC-EDGE DRAFT -> Erdos #155 (vf_55921775986ed4e2) [related, confidence 0.8]: Both concern the maximum size of a Sidon subset of {1,...,N} (44 states the ≤2√N bound, 155 names this maximum F(N)), so 44 is a bound on 155's quantity. -- LLM-drafted (20-agent extraction, 2026-06); NOT adjudicated. Accept or reject via `vela proposals accept/reject` under reviewer authority.proposed
reason
SEMANTIC-EDGE DRAFT -> Erdos #155 (vf_55921775986ed4e2) [related, confidence 0.8]: Both concern the maximum size of a Sidon subset of {1,...,N} (44 states the ≤2√N bound, 155 names this maximum F(N)), so 44 is a bound on 155's quantity. -- LLM-drafted (20-agent extraction, 2026-06); NOT adjudicated. Accept or reject via `vela proposals accept/reject` under reviewer authority.
provenance
proposed by
agent:semantic-edge-extractor
actor type
human
created at
2026-06-10
target type
finding
affected
inspect finding →Erdős Problem #44 remains OPEN. Statement: **Erdős Problem 44:** Let N ≥ 1 and `A ⊆ {1,…,N}` be a Sidon set. Is it true that, for any ε > 0, there exist M = M(ε) and `B ⊆ {N+1,…,M}` such that `A ∪ B ⊆ {1,…,M}` is a Sidon set of size at least `(1−ε)M^{1/2}`? This problem asks whether any Sidon set can be extended to achieve a density arbitrarily close to the optimal density for Sidon sets. Topics: number theory, sidon sets, additive combinatorics. Erdős prize: no. Statement is machine-verified in Lean (formal-conjectures). OEIS: N/A.
vf_a357c9d8ac3d6b26Read-only frontier; diff not recomputed.
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