{
  "challenge_module": "ComparatorChallenges.CirculantHadamard",
  "solution_module": "OAI.LinearAlgebra.CirculantHadamard.Main",
  "theorem_names": [
    "OAI.CirculantHadamard.exists_iff_order_one_or_four"
  ],
  "definition_names": [],
  "permitted_axioms": [
    "propext",
    "Quot.sound",
    "Classical.choice"
  ],
  "enable_nanoda": false
}