Inverters/Inversion:

[helm.git] / helm / software / components / grafite_engine / grafiteEngine.ml

diff --git a/helm/software/components/grafite_engine/grafiteEngine.ml b/helm/software/components/grafite_engine/grafiteEngine.ml
index 1b6878aba1414bb619b525c40a28155402ab6a7e..310f3793fe943458490b3f29016c0c548713e599 100644 (file)
--- a/helm/software/components/grafite_engine/grafiteEngine.ml
+++ b/helm/software/components/grafite_engine/grafiteEngine.ml
@@ -826,7 +826,29 @@ let rec eval_ncommand opts status (text,prefix_len,cmd) =
                | NCicTypeChecker.TypeCheckerFailure _ ->
                   HLog.warn "error in generating projection/eliminator";
                   status,uris
-             ) (status,`New [] (* uris *)) boxml in
+             ) (status,`New [] (* uris *)) boxml in             
+           let _,_,_,_,nobj = obj in 
+           let status = match nobj with
+               NCic.Inductive (true,leftno,[it],_) ->
+                 let _,ind_name,ty,cl = it in
+                 List.fold_left 
+                   (fun status outsort ->
+                      let status = status#set_ng_mode `ProofMode in
+                      try
+                       (let status,invobj = NInversion.mk_inverter 
+                                      (ind_name ^ "_inv_" ^ (snd (NCicElim.ast_of_sort outsort))) 
+                                      it leftno outsort status status#baseuri in
+                       let _,_,menv,_,_ = invobj in
+                       fst (match menv with
+                             [] -> eval_ncommand opts status ("",0,GrafiteAst.NQed Stdpp.dummy_loc)
+                           | _ -> status,`New []))
+                      with _ -> HLog.warn "error in generating inversion principle"; 
+                                let status = status#set_ng_mode `CommandMode in status)
+                  status
+                  (NCic.Prop::
+                    List.map (fun s -> NCic.Type s) (NCicEnvironment.get_universes ()))
+              | _ -> status
+           in
            let coercions =
             match obj with
               _,_,_,_,NCic.Inductive