Branched paramodulation for CNF (Horn clauses)

[helm.git] / helm / software / components / ng_paramodulation / terms.mli

diff --git a/helm/software/components/ng_paramodulation/terms.mli b/helm/software/components/ng_paramodulation/terms.mli
index e0576d1f3e95dea87cd8d3955b125ac41e4f9588..dfed661d4576ba9b0799c4a61669cc98be653ec4 100644 (file)
--- a/helm/software/components/ng_paramodulation/terms.mli
+++ b/helm/software/components/ng_paramodulation/terms.mli
@@ -50,11 +50,35 @@ type 'a unit_clause =
  * varlist
  * 'a proof      (* proof *)
 
-type 'a passive_clause = int * 'a unit_clause (* weight * equation *)
+type 'a clause =
+    int
+    * 'a literal list (* left hand side of the arrow *)
+    * 'a literal list (* right hand side of the arrow *)
+    * varlist
+    * 'a proof
+
+type 'a passive_clause = int * 'a clause (* weight * equation *)
+
+val vars_of_term : ?start_acc:int list -> 'a foterm  -> int list
 
 module M : Map.S with type key = int 
 
-type 'a bag = ('a unit_clause * bool) M.t
+type 'a bag = int (* max ID  *)
+              * (('a unit_clause * bool * int) M.t)
+
+(* also gives a fresh ID to the clause *)
+    val add_to_bag : 
+          'a unit_clause -> 'a bag ->
+            'a bag * 'a unit_clause
+
+    val replace_in_bag : 
+          'a unit_clause * bool * int -> 'a bag ->
+            'a bag
+
+    val get_from_bag : 
+          int -> 'a bag -> 'a unit_clause * bool * int
+
+    val empty_bag : 'a bag
 
 module type Blob =
   sig