replaced apply-style proof for instance Multiset :: plus_ac0 by recommended Isar proof style
(* Title: HOLCF/Fun1.thy
ID: $Id$
Author: Franz Regensburger
License: GPL (GNU GENERAL PUBLIC LICENSE)
Definition of the partial ordering for the type of all functions => (fun)
REMARK: The ordering on 'a => 'b is only defined if 'b is in class po !!
*)
Fun1 = Pcpo +
instance flat<chfin (flat_imp_chfin)
(* to make << defineable: *)
instance fun :: (type, sq_ord) sq_ord
defs
less_fun_def "(op <<) == (%f1 f2.!x. f1 x << f2 x)"
end