| 
39948
 | 
     1  | 
(*  Title:      HOL/Tools/Meson/meson_tactic.ML
  | 
| 
 | 
     2  | 
    Author:     Jia Meng, Cambridge University Computer Laboratory and NICTA
  | 
| 
 | 
     3  | 
    Author:     Jasmin Blanchette, TU Muenchen
  | 
| 
 | 
     4  | 
  | 
| 
 | 
     5  | 
The "meson" proof method for HOL.
  | 
| 
 | 
     6  | 
*)
  | 
| 
 | 
     7  | 
  | 
| 
 | 
     8  | 
signature MESON_TACTIC =
  | 
| 
 | 
     9  | 
sig
  | 
| 
 | 
    10  | 
  val meson_general_tac : Proof.context -> thm list -> int -> tactic
  | 
| 
 | 
    11  | 
  val setup: theory -> theory
  | 
| 
 | 
    12  | 
end;
  | 
| 
 | 
    13  | 
  | 
| 
 | 
    14  | 
structure Meson_Tactic : MESON_TACTIC =
  | 
| 
 | 
    15  | 
struct
  | 
| 
 | 
    16  | 
  | 
| 
 | 
    17  | 
open Meson_Clausify
  | 
| 
 | 
    18  | 
  | 
| 
 | 
    19  | 
fun meson_general_tac ctxt ths =
  | 
| 
42793
 | 
    20  | 
  let val ctxt' = put_claset HOL_cs ctxt
  | 
| 
45508
 | 
    21  | 
  in Meson.meson_tac ctxt' (maps (snd o cnf_axiom ctxt' false true 0) ths) end
  | 
| 
39948
 | 
    22  | 
  | 
| 
 | 
    23  | 
val setup =
  | 
| 
 | 
    24  | 
  Method.setup @{binding meson} (Attrib.thms >> (fn ths => fn ctxt =>
 | 
| 
 | 
    25  | 
     SIMPLE_METHOD' (CHANGED_PROP o meson_general_tac ctxt ths)))
  | 
| 
 | 
    26  | 
     "MESON resolution proof procedure"
  | 
| 
 | 
    27  | 
  | 
| 
 | 
    28  | 
end;
  |