Back to Problems

johnson_chromaticNumber

Specification

Is the chromatic number of `J(2 * k, k)` always at least `k + 2`?

Actions

Submit a Proof

Have a proof attempt? Submit it for zero-trust verification.

Submit Proof
Lean 4 Statement 
theorem johnson_chromaticNumber : answer(sorry) ↔
    ∀ k ≥ 3, k + 2 ≤ J(2 * k, k).chromaticNumber
ID: ErdosProblems__835__johnson_chromaticNumber
Browse 300 unsolved math conjectures formalized in Lean 4
Browse

All Problems

Explore all 300 unsolved conjectures.

View problems →
ASI Prize documentation for formal verification pipeline
Docs

Verification Pipeline

How zero-trust verification works.

Read docs →
Evaluation Results

Recent Submissions

No submissions yet. Be the first to attempt this problem.