X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=components%2Ftactics%2Fdeclarative.ml;h=2f012ed40d9eded87bf8fcf62c6c0dd929aafac6;hb=b8f54b66890a55cfc255fa1df3e40fe60b78ee15;hp=110f72fb1fb4c5fb511be332f50ff552e858c539;hpb=dd5b3afb330c2efc69b97cc8762b71bd86685acd;p=helm.git

diff --git a/components/tactics/declarative.ml b/components/tactics/declarative.ml
index 110f72fb1..2f012ed40 100644
--- a/components/tactics/declarative.ml
+++ b/components/tactics/declarative.ml
@@ -123,10 +123,10 @@ let we_need_to_prove t id ty =
 
 let existselim ~dbd ~universe t id1 t1 id2 t2 =
  let aux (proof, goal) = 
-  let (n,metasenv,bo,ty,attrs) = proof in
+  let (n,metasenv,_subst,bo,ty,attrs) = proof in
   let metano,context,_ = CicUtil.lookup_meta goal metasenv in
   let t2, metasenv, _ = t2 (Some (Cic.Name id1, Cic.Decl t1) :: context) metasenv CicUniv.oblivion_ugraph in
-  let proof' = (n,metasenv,bo,ty,attrs) in
+  let proof' = (n,metasenv,_subst,bo,ty,attrs) in
    ProofEngineTypes.apply_tactic (
    Tacticals.thens
     ~start:(Tactics.cut (Cic.Appl [Cic.MutInd (UriManager.uri_of_string "cic:/matita/logic/connectives/ex.ind", 0, []); t1 ; Cic.Lambda (Cic.Name id1, t1, t2)]))
@@ -155,7 +155,7 @@ let andelim t id1 t1 id2 t2 =
 
 let rewritingstep ~dbd ~universe lhs rhs just last_step =
  let aux ((proof,goal) as status) =
-  let (curi,metasenv,proofbo,proofty, attrs) = proof in
+  let (curi,metasenv,_subst,proofbo,proofty, attrs) = proof in
   let _,context,gty = CicUtil.lookup_meta goal metasenv in
   let eq,trans =
    match LibraryObjects.eq_URI () with
@@ -168,16 +168,22 @@ let rewritingstep ~dbd ~universe lhs rhs just last_step =
   let just =
    match just with
       `Auto params ->
-        let params =
-         if not (List.exists (fun (k,_) -> k = "paramodulation") params) then
-          ("paramodulation","1")::params
-         else params in
         let params =
          if not (List.exists (fun (k,_) -> k = "timeout") params) then
           ("timeout","3")::params
          else params
         in
-         Tactics.auto ~dbd ~params ~universe
+        let params' =
+         if not (List.exists (fun (k,_) -> k = "paramodulation") params) then
+          ("paramodulation","1")::params
+         else params
+        in
+         if params = params' then
+          Tactics.auto ~dbd ~params ~universe
+         else
+          Tacticals.first
+           [Tactics.auto ~dbd ~params ~universe ;
+            Tactics.auto ~dbd ~params:params' ~universe]
     | `Term just -> Tactics.apply just 
   in
    let plhs,prhs,prepare =
@@ -215,7 +221,7 @@ let rewritingstep ~dbd ~universe lhs rhs just last_step =
 	      FreshNamesGenerator.mk_fresh_name ~subst:[] metasenv context
                (Cic.Name name) ~typ
 	    in
-            let proof = curi,metasenv,proofbo,proofty, attrs in
+            let proof = curi,metasenv,_subst,proofbo,proofty, attrs in
             let proof,goals =
              ProofEngineTypes.apply_tactic
               (Tacticals.thens
@@ -250,8 +256,8 @@ let we_proceed_by_cases_on t pat =
 ;;
 
 let we_proceed_by_induction_on t pat =
- (*BUG here: pat unused *)
- Tactics.elim_intros ~depth:0 t
+ let pattern = None, [], Some pat in
+ Tactics.elim_intros ~depth:0 ~pattern t
 ;;
 
 let case id ~params =