X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_refiner%2FnCicUnification.ml;h=2f6332d51d748ad0c90ecf71c81c5219ccd79cec;hb=d6ba7f4b8fbd98f2f1c848857022ef5fba80db53;hp=c224708533e5c6789606d943ac37fa4d23a609fb;hpb=686f7f4f4444125885bc7ef9e8ec3e0b6f567137;p=helm.git

diff --git a/helm/software/components/ng_refiner/nCicUnification.ml b/helm/software/components/ng_refiner/nCicUnification.ml
index c22470853..2f6332d51 100644
--- a/helm/software/components/ng_refiner/nCicUnification.ml
+++ b/helm/software/components/ng_refiner/nCicUnification.ml
@@ -95,8 +95,8 @@ let outside () =
 let pp s = 
   prerr_endline (Printf.sprintf "%-20s" !indent ^ " " ^ Lazy.force s)
 ;;
-let pp _ = ();;
 
+let pp _ = ();;
 
 let ppcontext = NCicPp.ppcontext;;
 let ppmetasenv = NCicPp.ppmetasenv;;
@@ -152,20 +152,11 @@ let rec lambda_intros rdb metasenv subst context t args =
        in
        metasenv, subst, bo
    | (arg,ty)::tail ->
+       let metasenv, subst, telescopic_ty = 
+         delift_term_wrt_terms rdb metasenv subst context_of_args ty 
+           (List.rev processed_args)
+       in
        let name = "HBeta"^string_of_int n in
-       let metasenv,_,instance,_ =
-        NCicMetaSubst.mk_meta metasenv context_of_args `Term in
-       let meta_applied =
-        NCicUntrusted.mk_appl instance (List.rev processed_args) in
-let metasenv,subst,_,_ =
- !refiner_typeof ((rdb :> NRstatus.status)#set_coerc_db NCicCoercion.empty_db) metasenv subst context_of_args meta_applied None
-in
-       let metasenv,subst =
-        unify rdb true metasenv subst context_of_args meta_applied ty in
-       let telescopic_ty = NCicSubstitution.lift n instance in
-       let telescopic_ty =
-        NCicUntrusted.mk_appl
-         telescopic_ty (mk_irl (List.length processed_args)) in
        let metasenv, subst, bo =
         mk_lambda metasenv subst ((name,NCic.Decl telescopic_ty)::context) (n+1)
          (arg::processed_args) tail
@@ -669,8 +660,23 @@ pp (lazy (string_of_bool norm1 ^ " ?? " ^ string_of_bool norm2));
           | UnificationFailure _ -> raise (UnificationFailure msg)
           | Uncertain _ -> raise exn
  (*D*)  in outside(); rc with exn -> outside (); raise exn 
+
+and delift_term_wrt_terms rdb metasenv subst context t args =
+  let metasenv, _, instance, _ =
+    NCicMetaSubst.mk_meta metasenv context `Term in
+  let meta_applied = NCicUntrusted.mk_appl instance args in
+  let metasenv,subst,meta_applied,_ =
+    !refiner_typeof ((rdb:> NRstatus.status)#set_coerc_db NCicCoercion.empty_db)
+      metasenv subst context meta_applied None
+  in
+  let metasenv, subst =
+   unify rdb true metasenv subst context meta_applied t in
+  let t = NCicSubstitution.lift (List.length args) instance in
+  let t = NCicUntrusted.mk_appl t (mk_irl (List.length args)) in
+   metasenv, subst, t
 ;;
 
+
 let unify rdb ?(test_eq_only=false) = 
   indent := "";      
   unify rdb test_eq_only;;