sig
type t = private
Var of int
| Apply of TopDown.S.const * TopDown.S.T.t array
val mk_var : int -> TopDown.S.T.t
val mk_const : TopDown.S.const -> TopDown.S.T.t
val mk_apply : TopDown.S.const -> TopDown.S.T.t array -> TopDown.S.T.t
val mk_apply_l : TopDown.S.const -> TopDown.S.T.t list -> TopDown.S.T.t
val is_var : TopDown.S.T.t -> bool
val is_apply : TopDown.S.T.t -> bool
val is_const : TopDown.S.T.t -> bool
val eq : TopDown.S.T.t -> TopDown.S.T.t -> bool
val hash : TopDown.S.T.t -> int
val ground : TopDown.S.T.t -> bool
val vars : TopDown.S.T.t -> int list
val max_var : TopDown.S.T.t -> int
val head_symbol : TopDown.S.T.t -> TopDown.S.const
val to_string : TopDown.S.T.t -> string
val pp : Pervasives.out_channel -> TopDown.S.T.t -> unit
val fmt : Format.formatter -> TopDown.S.T.t -> unit
val pp_tuple : Pervasives.out_channel -> TopDown.S.T.t list -> unit
module Tbl :
sig
type key = t
type 'a t
val create : int -> 'a t
val clear : 'a t -> unit
val reset : 'a t -> unit
val copy : 'a t -> 'a t
val add : 'a t -> key -> 'a -> unit
val remove : 'a t -> key -> unit
val find : 'a t -> key -> 'a
val find_opt : 'a t -> key -> 'a option
val find_all : 'a t -> key -> 'a list
val replace : 'a t -> key -> 'a -> unit
val mem : 'a t -> key -> bool
val iter : (key -> 'a -> unit) -> 'a t -> unit
val filter_map_inplace : (key -> 'a -> 'a option) -> 'a t -> unit
val fold : (key -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'b
val length : 'a t -> int
val stats : 'a t -> Hashtbl.statistics
end
end