the splitter is now defined as a functor
moved addsplits, delsplits, Addsplits, Delsplits to Provers/splitter.ML
moved split_thm_info to Provers/splitter.ML
definined atomize via general mk_atomize
removed superfluous rot_eq_tac from simplifier.ML
HOL/simpdata.ML: renamed mk_meta_eq to meta_eq,
              re-renamed mk_meta_eq_simp to mk_meta_eq
                 added Eps_eq to simpset
Bool = FOL +
types 	bool 0
arities bool 	:: term
consts tt,ff	:: "bool"
end