sig
type obs = Inf.ConstBasic.obs
val add : Inf.ConstBasic.t -> unit
val is_false : string -> unit
val remove : Inf.ConstBasic.t -> unit
val add_wl : Inf.Const.obs -> unit
val solve : unit -> unit
val string_of : unit -> string
val reset : unit -> unit
val full_visit : unit -> unit
end