∀ {α : Type u} {r : Std.Ric α} [inst : LE α] [inst_1 : DecidableLE α] [inst_2 : LT α] [inst_3 : Std.PRange.Least? α]
  [inst_4 : Std.PRange.UpwardEnumerable α] [inst_5 : Std.PRange.LawfulUpwardEnumerable α]
  [Std.PRange.LawfulUpwardEnumerableLE α] [Std.PRange.LawfulUpwardEnumerableLT α] [inst_8 : Std.Rxc.IsAlwaysFinite α]
  [Std.PRange.LawfulUpwardEnumerableLeast? α], List.Pairwise (fun a b => a < b) r.toList