∀ {α : Type u_1} [inst : Std.PRange.Least? α] [inst_1 : LE α] [inst_2 : DecidableLE α]
  [inst_3 : Std.PRange.UpwardEnumerable α] [Std.PRange.LawfulUpwardEnumerableLE α] [inst_5 : Std.Rxc.IsAlwaysFinite α]
  [inst_6 : Std.PRange.LawfulUpwardEnumerable α] {r : Std.Ric α}, r.iter.toArray = r.toArray