turned translation for 1::nat into def.
introduced 1' and replaced most occurrences of 1 by 1'.
(* Title: HOLCF/Up2.thy
ID: $Id$
Author: Franz Regensburger
Copyright 1993 Technische Universitaet Muenchen
Class Instance u::(pcpo)po
*)
Up2 = Up1 +
instance u :: (pcpo)po (refl_less_up,antisym_less_up,trans_less_up)
end