A collection of formal mathematics challenges. Select a problem, prove your bounds, and submit your solution.
Open Problems
Click a problem to view its statement and details.
Instructions
Your Lean 4 code must compile without errors and without any instances of sorry tactics.
Contributions may be written by AI, human or the colloboration of both.
-- This is what we want to see:
theorem parametrized_bound (G : SimpleGraph V) : parameter G ≤ bound := by
-- Your complete proof here
sorry -- NOT ALLOWED
Leaderboard
| Rank | Nickname | Problem | Result | Files | Date |
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Submit Your Solution
Upload your Lean 4 files below. One file must be named challenge_1.lean containing the theorem challenge_1.