GPT-5.5 Pro, Codex
The source does not provide a sufficiently specific role description.
Provider: OpenAI · Prompt public: unknown · Independence: unknown
Problem detail · source-aware
VibeMathed reports this item as partial. VibeMath preserves that report as a source assertion and has not independently authored a plain-language mathematical explanation.
Do arbitrarily large 4-chromatic edge-critical graphs exist with minimum degree bounded below by a positive constant times the number of vertices?
The source statement is reproduced for indexing with attribution. Mathematical correctness requires domain-expert or mechanical review. VibeMath has not independently audited statement fidelity, correctness, priority, or novelty.
The source does not provide a sufficiently specific role description.
Provider: OpenAI · Prompt public: unknown · Independence: unknown
Lean-checked with expert screening.
Correctness: supported · statement fidelity: audited · peer review: none
a new density-degree inequality gives δ(G) ≤ (3/10 + o(1))|V(G)|, improving 0.328; existence of a linear construction remains open
Source-reported tools: argument.
Independent: unknown · difference confidence: 0
VibeMath has not independently audited the mathematical statement, proof, or novelty claim.