src/HOL/Tools/Meson/meson_tactic.ML
author desharna
Tue, 27 Jul 2021 10:36:22 +0200
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(*  Title:      HOL/Tools/Meson/meson_tactic.ML
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    Author:     Jia Meng, Cambridge University Computer Laboratory and NICTA
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    Author:     Jasmin Blanchette, TU Muenchen
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The "meson" proof method for HOL.
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*)
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signature MESON_TACTIC =
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sig
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  val meson_general_tac : Proof.context -> thm list -> int -> tactic
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end;
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structure Meson_Tactic : MESON_TACTIC =
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struct
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fun meson_general_tac ctxt ths =
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  let val ctxt' = put_claset HOL_cs ctxt
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  in
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    Meson.meson_tac ctxt' (maps (snd o Meson_Clausify.cnf_axiom Meson.simp_options_all_true ctxt'
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      false true 0) ths)
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  end
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val _ =
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  Theory.setup
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    (Method.setup \<^binding>\<open>meson\<close> (Attrib.thms >> (fn ths => fn ctxt =>
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      SIMPLE_METHOD' (CHANGED_PROP o meson_general_tac ctxt ths)))
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      "MESON resolution proof procedure")
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end;