Source authenticated
Purdy's Inequality for Hyperplane Arrangements
the refined form for essential arrangements in projective three-space
Exact FrontierDelta
Prior state unknown→disproved
Scope and record
Occurred: Jul 9, 2026
Delta type: SOURCE CLAIM
Assumptions: VibeMathed verification: site-confirmed. Publication: preprint. AI contribution: ai-assisted. Imported under CC BY 4.0.
Canonical aliases: Purdy's Inequality for Hyperplane Arrangements · Purdy's inequality
Confidence: Not scored
Registry verification: site confirmed · preprint · resolved
Attribution
VibeMathed
registry · event recorded by
Mateusz Michalek
human · human collaborator
Piotr Pokora
human · human collaborator
ChatGPT
model · ai model contributor · OpenAI
Lineage and corrections
This event attributed to Piotr Pokora
This event attributed to Mateusz Michalek
This event attributed to ChatGPT