Erdős Problem #707: Sidon Sets and Perfect Difference Sets
Hall's 1947 counterexample predates the problem itself; this paper's counterexample is independent, smaller, and Lean-certified.
Exact FrontierDelta
Scope and record
Occurred: Oct 22, 2025
Delta type: SOURCE CLAIM
Assumptions: VibeMathed verification: lean-verified. Publication: preprint. AI contribution: ai-assisted. Editorial metadata: CC BY 4.0; linked content retains its own rights.
Canonical aliases: Erdős Problem #707: Sidon Sets and Perfect Difference Sets · Erdős #707 (1000-dollar prize) · Problem 707
Confidence: Not scored
Registry verification: lean verified · preprint · resolved
Attribution
VibeMathed
registry · event recorded by
Boris Alexeev
human · human collaborator
Dustin G. Mixon
human · human collaborator
ChatGPT (GPT-5)
model · ai model contributor · OpenAI
Lineage and corrections
This event attributed to Dustin G. Mixon
This event attributed to Boris Alexeev
This event attributed to ChatGPT (GPT-5)
Erdős Problem #707: Sidon Sets and Perfect Difference Sets evidence for this event
Erdős Problem #707: Sidon Sets and Perfect Difference Sets parent of this event
VibeMathed record: Erdős Problem #707: Sidon Sets and Perfect Difference Sets evidence for this event
Hall's 1947 counterexample predates the problem itself; this paper's counterexample is independent, smaller, and Lean-certified. parent of this event
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