X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2Focaml%2Fcic%2FlibraryObjects.ml;h=353710708343f87740d86689f149c049463cd6bf;hb=1a40d93d10be4ee71ae9474384af931d70918690;hp=6a1e8a122c0c42fb81977d7911061c83099cec5b;hpb=a9af753c66a80cb4f50f32e63272f3830cba306c;p=helm.git

diff --git a/helm/ocaml/cic/libraryObjects.ml b/helm/ocaml/cic/libraryObjects.ml
index 6a1e8a122..353710708 100644
--- a/helm/ocaml/cic/libraryObjects.ml
+++ b/helm/ocaml/cic/libraryObjects.ml
@@ -25,6 +25,17 @@
 
 (**** TABLES ****)
 
+let default_eq_URIs =
+ [HelmLibraryObjects.Logic.eq_URI,
+      HelmLibraryObjects.Logic.sym_eq_URI,
+      HelmLibraryObjects.Logic.trans_eq_URI,
+      HelmLibraryObjects.Logic.eq_ind_URI,
+      HelmLibraryObjects.Logic.eq_ind_r_URI];;
+
+let default_true_URIs = [HelmLibraryObjects.Logic.true_URI]
+let default_false_URIs = [HelmLibraryObjects.Logic.false_URI]
+let default_absurd_URIs = [HelmLibraryObjects.Logic.absurd_URI]
+
 (* eq, sym_eq, trans_eq, eq_ind, eq_ind_R *)
 let eq_URIs_ref =
  ref [HelmLibraryObjects.Logic.eq_URI,
@@ -52,7 +63,7 @@ let insert_unique e extract l =
   e :: l'
 
 let set_default what l =
- match what,l with
+  match what,l with
     "equality",[eq_URI;sym_eq_URI;trans_eq_URI;eq_ind_URI;eq_ind_r_URI] ->
       eq_URIs_ref :=
        insert_unique (eq_URI,sym_eq_URI,trans_eq_URI,eq_ind_URI,eq_ind_r_URI)
@@ -60,11 +71,17 @@ let set_default what l =
   | "true",[true_URI] ->
       true_URIs_ref := insert_unique true_URI (fun x -> x) !true_URIs_ref
   | "false",[false_URI] ->
-      true_URIs_ref := insert_unique false_URI (fun x -> x) !false_URIs_ref
+      false_URIs_ref := insert_unique false_URI (fun x -> x) !false_URIs_ref
   | "absurd",[absurd_URI] ->
       absurd_URIs_ref := insert_unique absurd_URI (fun x -> x) !absurd_URIs_ref
   | _,_ -> raise NotRecognized
 
+let reset_defaults () =
+  eq_URIs_ref := default_eq_URIs;
+  true_URIs_ref := default_true_URIs;
+  false_URIs_ref := default_false_URIs;
+  absurd_URIs_ref := default_absurd_URIs
+
 (**** LOOKUP FUNCTIONS ****)
 
 let eq_URI () = let eq,_,_,_,_ = List.hd !eq_URIs_ref in eq