X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_paramodulation%2FnCicBlob.ml;h=bc7289176776131a7837e35c0a86dd811d9b93ca;hb=f7804325dbb5b51820edefe5d5ffff89809fe35c;hp=91746f210480f9eefae71b9cfde9aea198c238c0;hpb=1341f9c234571b4172cd76cd84e7230039cb4642;p=helm.git

diff --git a/helm/software/components/ng_paramodulation/nCicBlob.ml b/helm/software/components/ng_paramodulation/nCicBlob.ml
index 91746f210..bc7289176 100644
--- a/helm/software/components/ng_paramodulation/nCicBlob.ml
+++ b/helm/software/components/ng_paramodulation/nCicBlob.ml
@@ -11,6 +11,29 @@
 
 (* $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 uri = NUri.uri_of_string "cic:/matita/ng/Plogic/equality/eq.ind" in
+  let ref = NReference.reference_of_spec uri (NReference.Ind(true,0,2)) in
+    NCic.Const ref
+;;
+
+let set_default_eqP() = eqPref := default_eqP
+
+let set_reference_of_oxuri f = 
+  let eqnew = function 
+      _ -> 
+	let r = f(UriManager.uri_of_string 
+          "cic:/matita/logic/equality/eq.ind#xpointer(1/1)")
+	in
+	  NCic.Const r
+  in
+    eqPref := eqnew
+;;
+
+
 module type NCicContext =
   sig
     val metasenv : NCic.metasenv
@@ -23,7 +46,8 @@ with type t = NCic.term and type input = NCic.term = struct
 
   type t = NCic.term
 
-  let eq x y = NCicReduction.alpha_eq C.metasenv C.subst C.context x y;;
+  let eq x y = x = y;;
+    (* NCicReduction.alpha_eq C.metasenv C.subst C.context x y;; *)
 
   let rec compare x y = 
     match x,y with
@@ -37,11 +61,14 @@ with type t = NCic.term and type input = NCic.term = struct
     | ( NCic.Meta _ | NCic.Appl _ ), NCic.Const _ -> 1
     | NCic.Appl _, NCic.Meta _ -> ~-1
     | NCic.Meta _, NCic.Appl _ -> 1
-    | _ -> assert false
+    | _ -> Pervasives.compare x y
+	(* was assert false, but why? *)
+	
   ;;
   
   let compare x y = 
-    if NCicReduction.alpha_eq C.metasenv C.subst C.context x y then 0 
+    (* if NCicReduction.alpha_eq C.metasenv C.subst C.context x y  then 0 *)
+    if x = y  then 0
     else compare x y
   ;;
 
@@ -67,7 +94,7 @@ with type t = NCic.term and type input = NCic.term = struct
 
   let saturate t ty = 
     let sty, _, args = 
-      NCicMetaSubst.saturate ~delta:max_int C.metasenv C.subst C.context
+      NCicMetaSubst.saturate ~delta:0 C.metasenv C.subst C.context
         ty 0
     in
     let proof = 
@@ -77,14 +104,8 @@ with type t = NCic.term and type input = NCic.term = struct
     let sty = embed sty in
     proof, sty
   ;;
-
-  let eqP = 
-    let r = 
-      OCic2NCic.reference_of_oxuri 
-       (UriManager.uri_of_string 
-         "cic:/matita/logic/equality/eq.ind#xpointer(1/1)")
-    in
-    NCic.Const r
+  
+  let eqP = (!eqPref)()
   ;;
 
  end