X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fcic_disambiguation%2FdisambiguateChoices.ml;h=368bc2f45f9a21911821ba9ffbd905a37c542ad7;hb=5325734bc2e4927ed7ec146e35a6f0f2b49f50c1;hp=9caf77aabf0618bdac3f2071a056a569d2398ff7;hpb=b3bfd6b249600b15552c890306a635aee30c2a74;p=helm.git

diff --git a/helm/ocaml/cic_disambiguation/disambiguateChoices.ml b/helm/ocaml/cic_disambiguation/disambiguateChoices.ml
index 9caf77aab..368bc2f45 100644
--- a/helm/ocaml/cic_disambiguation/disambiguateChoices.ml
+++ b/helm/ocaml/cic_disambiguation/disambiguateChoices.ml
@@ -85,4 +85,14 @@ let lookup_num_by_dsc dsc =
 
 let _ =
   add_binary_op "exists" "exists"
-   (Cic.MutInd (HelmLibraryObjects.Logic.ex_URI, 0, []))
+    (Cic.MutInd (HelmLibraryObjects.Logic.ex_URI, 0, []));
+  add_symbol_choice "cast"
+    ("type cast",
+      (fun env _ args ->
+        let t1, t2 =
+          match args with 
+          | [t1; t2] -> t1, t2
+          | _ -> raise Invalid_choice
+        in
+        Cic.Cast (t1, t2)));
+