--- a/Nominal/Nominal2.thy	Wed Jun 22 13:40:25 2011 +0100
+++ b/Nominal/Nominal2.thy	Wed Jun 22 14:14:54 2011 +0100
@@ -189,23 +189,21 @@
   val (raw_dt_names, raw_dts, raw_bclauses, raw_bn_funs, raw_bn_eqs, cnstr_names, lthy0) =
     define_raw_dts dts bn_funs bn_eqs bclauses lthy   
 
-  val dtinfo = Datatype.the_info (ProofContext.theory_of lthy0) (hd raw_dt_names)
-  val {descr, sorts, ...} = dtinfo
+  val dtinfos = map (Datatype.the_info (ProofContext.theory_of lthy0)) raw_dt_names 
+  val {descr, sorts, ...} = hd dtinfos
 
-  val raw_tys = all_dtyps descr sorts
+  val raw_tys = Datatype_Aux.get_rec_types descr sorts
   val tvs = hd raw_tys
     |> snd o dest_Type
     |> map dest_TFree  
 
-  val dtinfos = map (Datatype.the_info (ProofContext.theory_of lthy0)) raw_dt_names  
- 
   val raw_cns_info = all_dtyp_constrs_types descr sorts
   val raw_constrs = (map o map) (fn (c, _, _, _) => c) raw_cns_info
 
   val raw_inject_thms = flat (map #inject dtinfos)
   val raw_distinct_thms = flat (map #distinct dtinfos)
-  val raw_induct_thm = #induct dtinfo
-  val raw_induct_thms = #inducts dtinfo
+  val raw_induct_thm = #induct (hd dtinfos)
+  val raw_induct_thms = #inducts (hd dtinfos)
   val raw_exhaust_thms = map #exhaust dtinfos
   val raw_size_trms = map HOLogic.size_const raw_tys
   val raw_size_thms = Size.size_thms (ProofContext.theory_of lthy0) (hd raw_dt_names)