temporarily comment out broken nitpick example;
adapt to new definition of type rat
(* Title: HOL/HOLCF/ROOT.ML
Author: Franz Regensburger
HOLCF -- a semantic extension of HOL by the LCF logic.
*)
no_document use_thys ["~~/src/HOL/Library/Nat_Bijection", "~~/src/HOL/Library/Countable"];
use_thys ["Plain_HOLCF", "Fixrec", "HOLCF"];