X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Ftactics%2Fparamodulation%2Futils.ml;h=c2b1905f89f4f313ae4e2cd230ec301e889f883f;hb=e8f64678cc425f19336ff4f905f9b2f00acd6627;hp=db19e87d1d89f77f67ed818df82b625e323da12e;hpb=d811085efd81ce196a2d6cfee54ce1eb7a076a22;p=helm.git

diff --git a/helm/software/components/tactics/paramodulation/utils.ml b/helm/software/components/tactics/paramodulation/utils.ml
index db19e87d1..c2b1905f8 100644
--- a/helm/software/components/tactics/paramodulation/utils.ml
+++ b/helm/software/components/tactics/paramodulation/utils.ml
@@ -60,6 +60,8 @@ let string_of_comparison = function
   | Eq -> "="
   | Incomparable -> "I"
 
+type environment = Cic.metasenv * Cic.context * CicUniv.universe_graph
+
 module OrderedTerm =
 struct
   type t = Cic.term
@@ -291,7 +293,7 @@ end
 module IntSet = Set.Make(OrderedInt)
 
 let compute_equality_weight (ty,left,right,o) =
-  let factor = 1 in
+  let factor = 2 in
   match o with
     | Lt -> 
 	let w, m = (weight_of_term 
@@ -427,7 +429,6 @@ let compare_weights ?(normalize=false)
   | (m, _, n) when m > 0 && n > 0 ->
       Incomparable
   | _ -> assert false 
-
 ;;
 
 
@@ -723,11 +724,20 @@ let string_of_pos = function
   | Right -> "Right"
 ;;
 
+let eq_URI () =
+ match LibraryObjects.eq_URI () with
+    None -> assert false
+  | Some uri -> uri
 
-let eq_ind_URI () = LibraryObjects.eq_ind_URI ~eq:(LibraryObjects.eq_URI ())
-let eq_ind_r_URI () = LibraryObjects.eq_ind_r_URI ~eq:(LibraryObjects.eq_URI ())
-let sym_eq_URI () = LibraryObjects.sym_eq_URI ~eq:(LibraryObjects.eq_URI ())
+let eq_ind_URI () = LibraryObjects.eq_ind_URI ~eq:(eq_URI ())
+let eq_ind_r_URI () = LibraryObjects.eq_ind_r_URI ~eq:(eq_URI ())
+let sym_eq_URI () = LibraryObjects.sym_eq_URI ~eq:(eq_URI ())
 let eq_XURI () =
-  let s = UriManager.string_of_uri (LibraryObjects.eq_URI ()) in
+  let s = UriManager.string_of_uri (eq_URI ()) in
   UriManager.uri_of_string (s ^ "#xpointer(1/1/1)")
-let trans_eq_URI () = LibraryObjects.trans_eq_URI ~eq:(LibraryObjects.eq_URI ())
+let trans_eq_URI () = LibraryObjects.trans_eq_URI ~eq:(eq_URI ())
+
+let metas_of_term t = 
+  List.map fst (CicUtil.metas_of_term t)
+;;
+