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Erdős Problem #1: sum-distinct sets

The formal theorem proves that no universal constant C>0C>0 can satisfy N>C2A N>C\,2^{|A|} for every nonempty interval bound NN and every sum-distinct A{1,,N}A\subseteq\{1,\dots,N\}. Equivalently, for every ε>0\varepsilon>0 there are arbitrarily large nn and sum-distinct nn-element sets contained in {1,,N}\{1,\dots,N\} with Nε2n. N\le\varepsilon 2^n. The proof is ineffective: it establishes the existence of arbitrarily large such nn but gives no explicit bound for how large nn must be in terms of ε\varepsilon.

Exact FrontierDelta

Prior state unknowndisproved

Scope and record

Occurred: Aug 28, 2026

Delta type: SOURCE CLAIM

Assumptions: VibeMathed verification: lean-verified. Publication: announcement. AI contribution: ai-discovered. VibeMathed editorial classifications, scores, notes, relations, and dataset structure are CC BY 4.0. Source statements and linked content retain their own rights.

Canonical aliases: Erdős Problem #1: sum-distinct sets · Erdős #1: Sum-Distinct Sets · Problem 1

Confidence: Not scored

Registry verification: lean verified · announcement · resolved

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Attribution

VibeMathed
registry · event recorded by

GPT-6 Astra (pre-release)
model · ai model contributor · OpenAI

Tom Adamczewski
human · human collaborator

Artifacts and verifiers

Solution.lean and the Lean development

lean artifact · passed

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Challenge.lean: the compared statement

formal registration · pending

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Compute record

No linked compute attempts recorded.

Lineage and corrections

Erdős Problem #1: sum-distinct sets parent of this event

The formal theorem proves that no universal constant C>0C>0 can satisfy N>C2A N>C\,2^{|A|} for every nonempty interval bound NN and every sum-distinct A{1,,N}A\subseteq\{1,\dots,N\}. Equivalently, for every ε>0\varepsilon>0 there are arbitrarily large nn and sum-distinct nn-element sets contained in {1,,N}\{1,\dots,N\} with Nε2n. N\le\varepsilon 2^n. The proof is ineffective: it establishes the existence of arbitrarily large such nn but gives no explicit bound for how large nn must be in terms of ε\varepsilon. parent of this event

VibeMathed record: Erdős Problem #1: sum-distinct sets evidence for this event

Erdős Problem #1: sum-distinct sets evidence for this event

erdosproblems.com/1: status and Thomas Bloom's proof exposition evidence for this event

Challenge.lean: the compared statement evidence for this event

Solution.lean and the Lean development evidence for this event

Epoch AI, Announcing FrontierMath Erdős (1 September 2026) evidence for this event

This event attributed to GPT-6 Astra (pre-release)

This event attributed to Tom Adamczewski

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Erdős Problem #1: sum-distinct sets — Mathematical Frontier Network