adding quickcheck narrowing to mutabelle script; deactivating nitpick in mutabelle script momentarily because we are not monitoring the results effectively
(* Title: Sequents/LK/ROOT.ML
Author: Lawrence C Paulson, Cambridge University Computer Laboratory
Copyright 1992 University of Cambridge
Examples for Classical Logic.
*)
use_thys ["Propositional", "Quantifiers", "Hard_Quantifiers", "Nat"];