Source authenticated
The Erdos-Graham Semiprime Unit Fraction Problem
the omega = 2 integer case, the one Butler, Erdos and Graham left open
Exact FrontierDelta
Prior state unknown→proved
Scope and record
Occurred: Jun 13, 2026
Delta type: SOURCE CLAIM
Assumptions: VibeMathed verification: unreviewed. Publication: preprint. AI contribution: ai-co-developed. Imported under CC BY 4.0.
Canonical aliases: The Erdos-Graham Semiprime Unit Fraction Problem · Semiprime unit fractions
Confidence: Not scored
Registry verification: unreviewed · preprint · resolved
Attribution
VibeMathed
registry · event recorded by
Shisheng Li
human · human collaborator
Claude (via Claude Code)
model · ai model contributor · Anthropic
Lineage and corrections
This event attributed to Shisheng Li
This event attributed to Claude (via Claude Code)