∀ {α : Type u_1} [inst : LE α] [inst_1 : DecidableLE α] [inst_2 : Std.PRange.UpwardEnumerable α]
  [Std.PRange.LawfulUpwardEnumerableLE α] [inst_4 : Std.Rxc.IsAlwaysFinite α]
  [inst_5 : Std.PRange.LawfulUpwardEnumerable α] {r : Std.Roc α}, r.iter.toList = r.toList