X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fmetadata%2FmetadataConstraints.mli;h=ddf672b7f1d939d84099c216bbd3116190b9afcb;hb=3605d724ae0b95e17e668b6e140c35ab19568bb2;hp=72f808efbc80ea7396a407704ee11e30696428f6;hpb=6e986001aac7cc63b0e7d13447caae3729e0f833;p=helm.git

diff --git a/helm/ocaml/metadata/metadataConstraints.mli b/helm/ocaml/metadata/metadataConstraints.mli
index 72f808efb..ddf672b7f 100644
--- a/helm/ocaml/metadata/metadataConstraints.mli
+++ b/helm/ocaml/metadata/metadataConstraints.mli
@@ -57,14 +57,23 @@ val sigmatch:
 type cardinality_condition =
   | Eq of int
   | Gt of int
+  | Lt of int
+
+type rating_criterion =
+  [ `Hits   (** order by number of hits, most used objects first *)
+  ]
 
   (** @param concl_card cardinality condition on conclusion only
   * @param full_card cardinality condition on the whole statement
+  * @param diff required difference between the number of different constants in
+  * hypothesis and the number of different constants in body
   * @return list of URI satisfying given constraints *)
 val at_least:
   dbd:Mysql.dbd ->
   ?concl_card:cardinality_condition ->
   ?full_card:cardinality_condition ->
+  ?diff:cardinality_condition ->
+  ?rating:rating_criterion ->
   MetadataTypes.constr list ->
     string list