X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fcic%2FlibraryObjects.ml;h=adbc219cc3fd72771b314a3e61eeea85a98cfc52;hb=5104e38ee747fd1052ce21f3f9f2ecc778d590ba;hp=967318721736a1e1d3a081f165ce63b6608c86e3;hpb=7730ab45cb810e7ea0dfa804321b339c822ee87a;p=helm.git

diff --git a/helm/ocaml/cic/libraryObjects.ml b/helm/ocaml/cic/libraryObjects.ml
index 967318721..adbc219cc 100644
--- a/helm/ocaml/cic/libraryObjects.ml
+++ b/helm/ocaml/cic/libraryObjects.ml
@@ -23,8 +23,21 @@
  * http://helm.cs.unibo.it/
  *)
 
+(* $Id$ *)
+
 (**** 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,
@@ -65,6 +78,12 @@ let set_default what l =
       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
@@ -72,6 +91,12 @@ let eq_URI () = let eq,_,_,_,_ = List.hd !eq_URIs_ref in eq
 let is_eq_URI uri =
  List.exists (fun (eq,_,_,_,_) -> UriManager.eq eq uri) !eq_URIs_ref
 
+let is_eq_ind_URI uri =
+ List.exists (fun (_,_,_,eq_ind,_) -> UriManager.eq eq_ind uri) !eq_URIs_ref
+
+let is_eq_ind_r_URI uri =
+ List.exists (fun (_,_,_,_,eq_ind_r) -> UriManager.eq eq_ind_r uri) !eq_URIs_ref
+
 let sym_eq_URI ~eq:uri =
  try
   let _,x,_,_,_ = List.find (fun eq,_,_,_,_ -> UriManager.eq eq uri) !eq_URIs_ref in x