Module AbstractSyntax.Predicate

type term =
  1. | Var of VarGen.id
  2. | Const of ConstGen.id
module TermSet : Stdlib.Set.S with type elt = term
val pp_terms : ConstGen.Table.table -> Stdlib.Format.formatter -> TermSet.t -> unit
type pred_id
val pp_pred_id : Stdlib.Format.formatter -> pred_id -> unit
module PredIdMap : Stdlib.Map.S with type key = pred_id
module PredIds : Stdlib.Set.S with type elt = pred_id
type predicate = {
  1. p_id : pred_id;
  2. arity : int;
  3. arguments : term list;
    (*

    It is assumed that the size of the list is the arity

    *)
}
val pp : ?position:int -> ?with_id:bool -> ?with_arity:bool -> PredIdTable.table -> ConstGen.Table.table -> Stdlib.Format.formatter -> predicate -> unit
val compare : ?with_arguments:bool -> predicate -> predicate -> int

compare p1 p2 returns a positive integer if p1 is greater than p2. If with_arguments is set to true (default), then the comparison relies on the actual value of the arguments as well. Otherwise, it does not take then into account.

val fake_pred_id : pred_id
val get_variables : predicate -> TermSet.t

get_variables pred returns the set of all terms that are variables in the argument list of the predicate pred

val get_variables_of_preds : predicate list -> TermSet.t

get_variables_of_preds preds returns the set of all terms that are variables in the argument list of all the predicates in preds

string_of_predicate_name pred pred_id_table Returns the name of the predicate.

val copy_predicate : new_id:pred_id -> predicate -> predicate

copy_predicate ~new_id:id pred copies the predicate pred (arity and content) to a new predicate with id id