Module Logtk_parsers.Trace_tstpSource

Trace of a TSTP prover

Sourcetype clause = term Logtk.SLiteral.t list
Sourcetype t =
  1. | Axiom of string * string
  2. | Theory of string
  3. | InferForm of form * step lazy_t
  4. | InferClause of clause * step lazy_t
Sourceand step = {
  1. id : id;
  2. rule : string;
  3. parents : t array;
  4. esa : bool;
    (*

    Equisatisfiable step?

    *)
}
Sourceval equal : t -> t -> bool
Sourceval compare : t -> t -> int
Sourceval mk_f_axiom : id:id -> form -> file:string -> name:string -> t
Sourceval mk_c_axiom : id:id -> clause -> file:string -> name:string -> t
Sourceval mk_f_step : ?esa:bool -> id:id -> form -> rule:string -> t list -> t
Sourceval mk_c_step : ?esa:bool -> id:id -> clause -> rule:string -> t list -> t
Sourceval is_axiom : t -> bool
Sourceval is_theory : t -> bool
Sourceval is_step : t -> bool
Sourceval is_proof_of_false : t -> bool
Sourceval get_id : t -> id

Obtain the ID of the proof step.

Sourceval force : t -> unit

Force the lazy proof step, if any

Proof traversal

Sourcemodule StepTbl : Hashtbl.S with type key = t
Sourcetype proof_set = unit StepTbl.t
Sourceval is_dag : t -> bool

Is the proof a proper DAG?

Sourceval traverse : ?traversed:proof_set -> t -> (t -> unit) -> unit

Traverse the proof. Each proof node is traversed only once, using the set to recognize already traversed proofs.

Sourceval to_seq : t -> t Iter.t

Traversal of parent proofs

Sourceval depth : t -> int

Max depth of the proof

Sourceval size : t -> int

Number of nodes in the proof

IO

Sourcetype 'a or_error = ('a, string) CCResult.t
Sourceval of_decls : form Ast_tptp.t Iter.t -> t or_error

Try to extract a proof from a list of TSTP statements.

Sourceval parse : ?recursive:bool -> string -> t or_error

Try to parse a proof from a file.

Debug printing, non recursive

include Logtk.Interfaces.PRINT with type t := t
Sourceval to_string : t -> string

Print proof step, and its parents

print the whole proofs