X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matitaB%2Fcomponents%2Fng_paramodulation%2FnCicBlob.ml;h=14454c58b2b0c571a9fe7d62a0095f32d8a09d7c;hb=4f3b04e9966484011328d5b0eb358da4416e29b0;hp=beef0ae453ba6ce55a80b1bd411b3603effb7630;hpb=d0d2ebcf0ad48c38dcd69142f5e080e987fc5536;p=helm.git

diff --git a/matitaB/components/ng_paramodulation/nCicBlob.ml b/matitaB/components/ng_paramodulation/nCicBlob.ml
index beef0ae45..14454c58b 100644
--- a/matitaB/components/ng_paramodulation/nCicBlob.ml
+++ b/matitaB/components/ng_paramodulation/nCicBlob.ml
@@ -11,15 +11,15 @@
 
 (* $Id: terms.mli 9822 2009-06-03 15:37:06Z tassi $ *)
 
-let eqPref = ref (fun _ -> assert false);;
-let set_eqP t = eqPref := fun _ -> t;;
-
-let default_eqP() =
+let default_eqP =
   let uri = NUri.uri_of_string "cic:/matita/basics/logic/eq.ind" in
   let ref = NReference.reference_of_spec uri (NReference.Ind(true,0,2)) in
     NCic.Const ref
 ;;
 
+let eqPref = ref default_eqP;;
+let set_eqP t = eqPref := t;;
+
 let equivalence_relation =
   let uri = NUri.uri_of_string "cic:/matita/ng/properties/relations/eq_rel.con"
   in
@@ -84,20 +84,22 @@ with type t = NCic.term and type input = NCic.term = struct
 	
   ;;
   
-  let compare x y = 
+  (* let compare x y = 
     (* CSC: NCicPp.status is the best I can put here *)
     (* WR: and I can't guess a user id, so I must put None *)
     if NCicReduction.alpha_eq (new NCicPp.status None) [] [] [] x y  then 0 
     (* if x = y  then 0 *)
     else compare x y
-  ;;
+  ;; *)
 
-  let eqP = (!eqPref)()
+  let eqP = fun () -> !eqPref
   ;;
 
   let is_eq = function
-    | Terms.Node [ Terms.Leaf eqt ; ty; l; r ] when eq eqP eqt ->
+    | Terms.Node [ Terms.Leaf eqt ; ty; l; r ] when eq (eqP()) eqt ->
         Some (ty,l,r) 
+    | Terms.Node [ Terms.Leaf eqt ; ty; l; r ] ->
+        None
 (*
     | Terms.Node [ Terms.Leaf eqt ; _; Terms.Node [Terms.Leaf eqt2 ; ty]; l; r]
 	when eq equivalence_relation eqt && eq setoid_eq eqt2 ->