{motive_1 : Lean.Compiler.LCNF.UnreachableBranches.Value → Sort u} →
  {motive_2 : Array Lean.Compiler.LCNF.UnreachableBranches.Value → Sort u} →
    {motive_3 : List Lean.Compiler.LCNF.UnreachableBranches.Value → Sort u} →
      Array Lean.Compiler.LCNF.UnreachableBranches.Value → Sort (max 1 u)