X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_paramodulation%2Fterms.mli;h=f1eacb7346ae998bdb7e7ba8afe8da46e410cd69;hb=2e11e475e62e4f3d6872554fb504d77bf2327b7d;hp=c16b6f9b7212dd564aa07c67b4a39a1ee8eb86e6;hpb=6b0a195b180e3526af7b55771b2df7b10acd7c30;p=helm.git

diff --git a/helm/software/components/ng_paramodulation/terms.mli b/helm/software/components/ng_paramodulation/terms.mli
index c16b6f9b7..f1eacb734 100644
--- a/helm/software/components/ng_paramodulation/terms.mli
+++ b/helm/software/components/ng_paramodulation/terms.mli
@@ -20,8 +20,11 @@ type 'a substitution = (int * 'a foterm) list
 
 type comparison = Lt | Eq | Gt | Incomparable
 
-type rule = SuperpositionRight | SuperpositionLeft | Demodulation
+type rule = Superposition | Demodulation
+
+(* A Discrimination tree is a map: foterm |-> (dir, clause) *)
 type direction = Left2Right | Right2Left | Nodir
+
 type position = int list
 
 type 'a proof =
@@ -51,7 +54,7 @@ type 'a passive_clause = int * 'a unit_clause (* weight * equation *)
 
 module M : Map.S with type key = int 
 
-type 'a bag = 'a unit_clause M.t
+type 'a bag = 'a unit_clause M.t 
 
 module type Blob =
   sig
@@ -62,7 +65,7 @@ module type Blob =
     type t
     val eq : t -> t -> bool
     val compare : t -> t -> int
-    val is_eq_predicate : t -> bool
+    val eqP : t
     (* TODO: consider taking in input an imperative buffer for Format 
      *  val pp : Format.formatter -> t -> unit
      * *)
@@ -71,5 +74,8 @@ module type Blob =
     val embed : t -> t foterm 
     (* saturate [proof] [type] -> [proof] * [type] *)
     val saturate : t -> t -> t foterm * t foterm
+
+    val mk_proof : t bag -> int -> int list -> t
+
   end