X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_tactics%2FnCicElim.ml;h=b493edb6a22f295750a96141dd74f6a5d0a68385;hb=a90c31c1b53222bd6d57360c5ba5c2d0fe7d5207;hp=359d93bbd5c72c48ff5700060fb82c4935ce0026;hpb=4377e950998c9c63937582952a79975947aa9a45;p=helm.git

diff --git a/helm/software/components/ng_tactics/nCicElim.ml b/helm/software/components/ng_tactics/nCicElim.ml
index 359d93bbd..b493edb6a 100644
--- a/helm/software/components/ng_tactics/nCicElim.ml
+++ b/helm/software/components/ng_tactics/nCicElim.ml
@@ -53,34 +53,30 @@ let mk_elim uri leftno it (outsort,suffix) pragma =
  let args,sort = NCicReduction.split_prods ~subst:[] [] (-1) ty in
  let args = List.rev_map (function name,_ -> mk_id name) args in
  let rec_arg = mk_id (fresh_name ()) in
- let mk_prods = 
+ let p_ty =
   List.fold_right
-   (fun name res -> CicNotationPt.Binder (`Forall,(name,None),res)) in
- let p_ty = mk_prods args
+   (fun name res -> CicNotationPt.Binder (`Forall,(name,None),res)) args
    (CicNotationPt.Binder
     (`Forall,
      (rec_arg,Some (mk_appl (mk_id ind_name :: params @ args))),
      CicNotationPt.Sort outsort)) in
- let mk_arrs n = mk_prods (HExtlib.mk_list (mk_id "_") n) in
  let args = args @ [rec_arg] in
  let k_names = List.map (function _,name,_ -> name_of_k name) cl in
- (*
  let final_params =
   List.map (function name -> name, None) params @
   [p_name,Some p_ty] @
   List.map (function name -> name, None) k_names @
   List.map (function name -> name, None) args in
- *)
  let cty = mk_appl (p_name :: args) in
  let ty = Some cty in
- let branches_with_args =
+ let branches =
   List.map
    (function (_,name,ty) ->
      let _,ty = NCicReduction.split_prods ~subst:[] [] leftno ty in
      let cargs,ty= my_split_prods ~subst:[] [] (-1) ty in
-     let cargs_recargs_nih  =
-      List.fold_left
-       (fun (acc,nih) -> function
+     let cargs_and_recursive_args =
+      List.rev_map
+       (function
            _,NCic.Def _ -> assert false
          | name,NCic.Decl ty ->
             let context,ty = my_split_prods ~subst:[] [] (-1) ty in
@@ -93,7 +89,7 @@ let mk_elim uri leftno it (outsort,suffix) pragma =
                  ->
                   let abs = List.rev_map (fun id,_ -> mk_id id) context in
                   let name = mk_id name in
-                   (name, Some (
+                   name, Some (
                    List.fold_right
                     (fun id res ->
                       CicNotationPt.Binder (`Lambda,(id,None),res))
@@ -105,29 +101,16 @@ let mk_elim uri leftno it (outsort,suffix) pragma =
                       k_names @
                       List.map (fun _ -> CicNotationPt.Implicit `JustOne)
                        (List.tl args) @
-                      [mk_appl (name::abs)]))))::acc, nih + 1
-              | _ -> (mk_id name,None)::acc,nih
-       ) ([],0) cargs in
-     let cargs_and_recursive_args, nih = cargs_recargs_nih in
+                      [mk_appl (name::abs)])))
+              | _ -> mk_id name,None
+       ) cargs in
      let cargs,recursive_args = List.split cargs_and_recursive_args in
      let recursive_args = HExtlib.filter_map (fun x -> x) recursive_args in
-      (CicNotationPt.Pattern (name,None,List.map (fun x -> x,None) cargs),
-       mk_appl (name_of_k name :: cargs @ recursive_args)), (name,cargs, nih)
+      CicNotationPt.Pattern (name,None,List.map (fun x -> x,None) cargs),
+       mk_appl (name_of_k name :: cargs @ recursive_args)
    ) cl
  in
- let branches, branch_args = List.split branches_with_args in
- let bo = CicNotationPt.Case (rec_arg,Some (ind_name,None),Some p_name,branches) in
- let final_params =
-  List.map (function name -> name, None) params @
-  [p_name,Some p_ty] @
-  List.map (function name, cargs, nih -> 
-            name_of_k name, 
-            Some (mk_prods cargs (mk_arrs nih 
-             (mk_appl 
-              (p_name::HExtlib.mk_list (CicNotationPt.Implicit `JustOne)
-               (List.length args - 1) @
-               [mk_appl (mk_id name :: params @ cargs)]))))) branch_args @
-               List.map (function name -> name, None) args in
+ let bo = CicNotationPt.Case (rec_arg,Some (ind_name,None),None,branches) in
  let recno = List.length final_params in
  let where = recno - 1 in
  let res =