∀ {levelNames : Array Lean.Name} {numMVars : ℕ} {expr : Lean.Expr} {levelNames_1 : Array Lean.Name} {numMVars_1 : ℕ}
  {expr_1 : Lean.Expr},
  { levelNames := levelNames, numMVars := numMVars, expr := expr } =
      { levelNames := levelNames_1, numMVars := numMVars_1, expr := expr_1 } →
    levelNames = levelNames_1 ∧ numMVars = numMVars_1 ∧ expr = expr_1