+
+ (* relocate [maxvar] [varlist] -> [newmaxvar] * [varlist] * [relocsubst] *)
+ val relocate : int -> int list -> int * int list * B.t Terms.substitution
+
+ (* also gives a fresh ID to the clause *)
+ val add_to_bag :
+ B.t Terms.bag -> B.t Terms.unit_clause ->
+ B.t Terms.bag * B.t Terms.unit_clause
+
+ val empty_bag : B.t Terms.bag
+
+ val compare_passive_clauses :
+ B.t Terms.passive_clause -> B.t Terms.passive_clause -> int
+