author | schirmer |
Fri, 28 May 2004 21:09:56 +0200 | |
changeset 14814 | c6b91c8aee1d |
parent 13605 | 528f7489a403 |
child 15006 | 107e4dfd3b96 |
permissions | -rw-r--r-- |
1243 | 1 |
(* Title: Provers/simplifier.ML |
1 | 2 |
ID: $Id$ |
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Author: Tobias Nipkow and Markus Wenzel, TU Muenchen |
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|
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Generic simplifier, suitable for most logics. See Pure/meta_simplifier.ML |
1a1b4c1b2b7c
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6 |
for the actual meta-level rewriting engine. |
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*) |
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|
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infix 4 |
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setsubgoaler setloop addloop delloop setSSolver addSSolver setSolver |
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addSolver addsimps delsimps addeqcongs deleqcongs addcongs delcongs |
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setmksimps setmkeqTrue setmkcong setmksym settermless addsimprocs delsimprocs; |
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|
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signature BASIC_SIMPLIFIER = |
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sig |
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type simproc |
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val mk_simproc: string -> cterm list |
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-> (Sign.sg -> thm list -> term -> thm option) -> simproc |
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type solver |
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val mk_solver: string -> (thm list -> int -> tactic) -> solver |
|
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type simpset |
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val empty_ss: simpset |
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val rep_ss: simpset -> |
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{mss: MetaSimplifier.meta_simpset, |
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mk_cong: thm -> thm, |
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subgoal_tac: simpset -> int -> tactic, |
|
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loop_tacs: (string * (int -> tactic)) list, |
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unsafe_solvers: solver list, |
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solvers: solver list}; |
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val print_ss: simpset -> unit |
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val print_simpset: theory -> unit |
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val setsubgoaler: simpset * (simpset -> int -> tactic) -> simpset |
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val setloop: simpset * (int -> tactic) -> simpset |
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val addloop: simpset * (string * (int -> tactic)) -> simpset |
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val delloop: simpset * string -> simpset |
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val setSSolver: simpset * solver -> simpset |
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val addSSolver: simpset * solver -> simpset |
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val setSolver: simpset * solver -> simpset |
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val addSolver: simpset * solver -> simpset |
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val setmksimps: simpset * (thm -> thm list) -> simpset |
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val setmkeqTrue: simpset * (thm -> thm option) -> simpset |
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val setmkcong: simpset * (thm -> thm) -> simpset |
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val setmksym: simpset * (thm -> thm option) -> simpset |
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val settermless: simpset * (term * term -> bool) -> simpset |
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val addsimps: simpset * thm list -> simpset |
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val delsimps: simpset * thm list -> simpset |
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val addeqcongs: simpset * thm list -> simpset |
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val deleqcongs: simpset * thm list -> simpset |
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val addcongs: simpset * thm list -> simpset |
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val delcongs: simpset * thm list -> simpset |
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val addsimprocs: simpset * simproc list -> simpset |
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val delsimprocs: simpset * simproc list -> simpset |
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val merge_ss: simpset * simpset -> simpset |
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val prems_of_ss: simpset -> thm list |
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val simpset_ref_of_sg: Sign.sg -> simpset ref |
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val simpset_ref_of: theory -> simpset ref |
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val simpset_of_sg: Sign.sg -> simpset |
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val simpset_of: theory -> simpset |
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val SIMPSET: (simpset -> tactic) -> tactic |
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val SIMPSET': (simpset -> 'a -> tactic) -> 'a -> tactic |
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val simpset: unit -> simpset |
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parents:
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val simpset_ref: unit -> simpset ref |
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val Addsimps: thm list -> unit |
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val Delsimps: thm list -> unit |
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val Addsimprocs: simproc list -> unit |
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val Delsimprocs: simproc list -> unit |
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val Addcongs: thm list -> unit |
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val Delcongs: thm list -> unit |
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val generic_simp_tac: bool -> bool * bool * bool -> simpset -> int -> tactic |
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val safe_asm_full_simp_tac: simpset -> int -> tactic |
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val simp_tac: simpset -> int -> tactic |
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val asm_simp_tac: simpset -> int -> tactic |
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val full_simp_tac: simpset -> int -> tactic |
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val asm_lr_simp_tac: simpset -> int -> tactic |
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val asm_full_simp_tac: simpset -> int -> tactic |
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val Simp_tac: int -> tactic |
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val Asm_simp_tac: int -> tactic |
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val Full_simp_tac: int -> tactic |
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val Asm_lr_simp_tac: int -> tactic |
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val Asm_full_simp_tac: int -> tactic |
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val simplify: simpset -> thm -> thm |
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val asm_simplify: simpset -> thm -> thm |
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val full_simplify: simpset -> thm -> thm |
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14814
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added asm_lr_simplify/asm_lr_rewrite and adapted asm_full_simplify/asm_full_rewrite to match to corresponding simp_tacs
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val asm_lr_simplify: simpset -> thm -> thm |
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val asm_full_simplify: simpset -> thm -> thm |
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end; |
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||
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signature SIMPLIFIER = |
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sig |
|
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include BASIC_SIMPLIFIER |
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val simproc: Sign.sg -> string -> string list |
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-> (Sign.sg -> thm list -> term -> thm option) -> simproc |
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val simproc_i: Sign.sg -> string -> term list |
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-> (Sign.sg -> thm list -> term -> thm option) -> simproc |
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val rewrite: simpset -> cterm -> thm |
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val asm_rewrite: simpset -> cterm -> thm |
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val full_rewrite: simpset -> cterm -> thm |
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14814
c6b91c8aee1d
added asm_lr_simplify/asm_lr_rewrite and adapted asm_full_simplify/asm_full_rewrite to match to corresponding simp_tacs
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val asm_lr_rewrite: simpset -> cterm -> thm |
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val asm_full_rewrite: simpset -> cterm -> thm |
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val print_local_simpset: Proof.context -> unit |
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val get_local_simpset: Proof.context -> simpset |
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val put_local_simpset: simpset -> Proof.context -> Proof.context |
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val change_global_ss: (simpset * thm list -> simpset) -> theory attribute |
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val change_local_ss: (simpset * thm list -> simpset) -> Proof.context attribute |
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val simp_add_global: theory attribute |
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val simp_del_global: theory attribute |
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val simp_add_local: Proof.context attribute |
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val simp_del_local: Proof.context attribute |
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val cong_add_global: theory attribute |
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val cong_del_global: theory attribute |
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val cong_add_local: Proof.context attribute |
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val cong_del_local: Proof.context attribute |
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val change_simpset_of: (simpset * 'a -> simpset) -> 'a -> theory -> theory |
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val simp_modifiers: (Args.T list -> (Method.modifier * Args.T list)) list |
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val setup: (theory -> theory) list |
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val method_setup: (Args.T list -> (Method.modifier * Args.T list)) list |
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-> (theory -> theory) list |
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val easy_setup: thm -> thm list -> (theory -> theory) list |
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end; |
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|
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structure Simplifier: SIMPLIFIER = |
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struct |
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||
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(** simplification procedures **) |
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||
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(* datatype simproc *) |
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||
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datatype simproc = |
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Simproc of string * cterm list * (Sign.sg -> thm list -> term -> thm option) * stamp; |
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fun mk_simproc name lhss proc = |
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Simproc (name, map (Thm.cterm_fun Logic.varify) lhss, proc, stamp ()); |
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||
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fun simproc sg name ss = |
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mk_simproc name (map (fn s => Thm.read_cterm sg (s, TypeInfer.logicT)) ss); |
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fun simproc_i sg name = mk_simproc name o map (Thm.cterm_of sg); |
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||
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fun rep_simproc (Simproc args) = args; |
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||
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(** solvers **) |
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|
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datatype solver = Solver of string * (thm list -> int -> tactic) * stamp; |
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||
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fun mk_solver name solver = Solver (name, solver, stamp()); |
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fun eq_solver (Solver (_, _, s1), Solver(_, _, s2)) = s1 = s2; |
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val merge_solvers = gen_merge_lists eq_solver; |
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fun app_sols [] _ _ = no_tac |
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| app_sols (Solver(_,solver,_)::sols) thms i = |
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solver thms i ORELSE app_sols sols thms i; |
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||
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(** simplification sets **) |
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(* type simpset *) |
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||
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datatype simpset = |
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Simpset of { |
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mss: MetaSimplifier.meta_simpset, |
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mk_cong: thm -> thm, |
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subgoal_tac: simpset -> int -> tactic, |
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loop_tacs: (string * (int -> tactic)) list, |
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unsafe_solvers: solver list, |
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solvers: solver list}; |
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|
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fun make_ss mss mk_cong subgoal_tac loop_tacs unsafe_solvers solvers = |
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Simpset {mss = mss, mk_cong = mk_cong, subgoal_tac = subgoal_tac, |
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loop_tacs = loop_tacs, unsafe_solvers = unsafe_solvers, solvers = solvers}; |
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|
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val empty_ss = |
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Moved meta simplification stuff from Thm to MetaSimplifier.
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parents:
10034
diff
changeset
|
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let val mss = MetaSimplifier.set_mk_sym (MetaSimplifier.empty_mss, Some o symmetric_fun) |
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in make_ss mss I (K (K no_tac)) [] [] [] end; |
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|
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fun rep_ss (Simpset args) = args; |
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parents:
10034
diff
changeset
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fun prems_of_ss (Simpset {mss, ...}) = MetaSimplifier.prems_of_mss mss; |
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(* print simpsets *) |
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fun print_ss ss = |
186 |
let |
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val Simpset {mss, ...} = ss; |
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parents:
10034
diff
changeset
|
188 |
val {simps, procs, congs} = MetaSimplifier.dest_mss mss; |
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val pretty_thms = map Display.pretty_thm; |
191 |
fun pretty_proc (name, lhss) = |
|
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Pretty.big_list (name ^ ":") (map Display.pretty_cterm lhss); |
|
193 |
in |
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[Pretty.big_list "simplification rules:" (pretty_thms simps), |
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Pretty.big_list "simplification procedures:" (map pretty_proc procs), |
|
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Pretty.big_list "congruences:" (pretty_thms congs)] |
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|> Pretty.chunks |> Pretty.writeln |
|
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end; |
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|
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||
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(* extend simpsets *) |
|
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||
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fun (Simpset {mss, mk_cong, subgoal_tac = _, loop_tacs, unsafe_solvers, solvers}) |
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setsubgoaler subgoal_tac = |
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make_ss mss mk_cong subgoal_tac loop_tacs unsafe_solvers solvers; |
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|
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fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs = _, unsafe_solvers, solvers}) |
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setloop tac = |
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make_ss mss mk_cong subgoal_tac [("", tac)] unsafe_solvers solvers; |
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fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
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addloop tac = make_ss mss mk_cong subgoal_tac |
|
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(case assoc_string (loop_tacs, (#1 tac)) of None => () | Some x => |
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warning ("overwriting looper " ^ quote (#1 tac)); overwrite (loop_tacs, tac)) |
|
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unsafe_solvers solvers; |
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|
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fun (ss as Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
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delloop name = |
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let val (del, rest) = partition (fn (n, _) => n = name) loop_tacs in |
220 |
if null del then (warning ("No such looper in simpset: " ^ name); ss) |
|
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else make_ss mss mk_cong subgoal_tac rest unsafe_solvers solvers |
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end; |
223 |
||
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fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, ...}) |
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setSSolver solver = |
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make_ss mss mk_cong subgoal_tac loop_tacs unsafe_solvers [solver]; |
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|
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fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
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addSSolver sol = |
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make_ss mss mk_cong subgoal_tac loop_tacs unsafe_solvers (merge_solvers solvers [sol]); |
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|
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fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers = _, solvers}) |
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setSolver unsafe_solver = |
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make_ss mss mk_cong subgoal_tac loop_tacs [unsafe_solver] solvers; |
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|
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fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
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addSolver sol = |
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make_ss mss mk_cong subgoal_tac loop_tacs (merge_solvers unsafe_solvers [sol]) solvers; |
2503 | 239 |
|
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fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
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setmksimps mk_simps = |
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1a1b4c1b2b7c
Moved meta simplification stuff from Thm to MetaSimplifier.
berghofe
parents:
10034
diff
changeset
|
242 |
make_ss (MetaSimplifier.set_mk_rews (mss, mk_simps)) mk_cong subgoal_tac loop_tacs unsafe_solvers solvers; |
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|
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fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
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setmkeqTrue mk_eq_True = |
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Moved meta simplification stuff from Thm to MetaSimplifier.
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parents:
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changeset
|
246 |
make_ss (MetaSimplifier.set_mk_eq_True (mss, mk_eq_True)) mk_cong subgoal_tac loop_tacs |
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unsafe_solvers solvers; |
4677 | 248 |
|
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fun (Simpset {mss, mk_cong = _, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
250 |
setmkcong mk_cong = |
|
251 |
make_ss mss mk_cong subgoal_tac loop_tacs unsafe_solvers solvers; |
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252 |
||
253 |
fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
|
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setmksym mksym = |
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1a1b4c1b2b7c
Moved meta simplification stuff from Thm to MetaSimplifier.
berghofe
parents:
10034
diff
changeset
|
255 |
make_ss (MetaSimplifier.set_mk_sym (mss, mksym)) mk_cong subgoal_tac loop_tacs unsafe_solvers solvers; |
4677 | 256 |
|
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fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
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settermless termless = |
10412
1a1b4c1b2b7c
Moved meta simplification stuff from Thm to MetaSimplifier.
berghofe
parents:
10034
diff
changeset
|
259 |
make_ss (MetaSimplifier.set_termless (mss, termless)) mk_cong subgoal_tac loop_tacs |
9715 | 260 |
unsafe_solvers solvers; |
3551 | 261 |
|
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fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
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addsimps rews = |
10412
1a1b4c1b2b7c
Moved meta simplification stuff from Thm to MetaSimplifier.
berghofe
parents:
10034
diff
changeset
|
264 |
make_ss (MetaSimplifier.add_simps (mss, rews)) mk_cong subgoal_tac loop_tacs unsafe_solvers solvers; |
2503 | 265 |
|
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fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
3551 | 267 |
delsimps rews = |
10412
1a1b4c1b2b7c
Moved meta simplification stuff from Thm to MetaSimplifier.
berghofe
parents:
10034
diff
changeset
|
268 |
make_ss (MetaSimplifier.del_simps (mss, rews)) mk_cong subgoal_tac loop_tacs unsafe_solvers solvers; |
2503 | 269 |
|
9715 | 270 |
fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
3551 | 271 |
addeqcongs newcongs = |
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diff
changeset
|
272 |
make_ss (MetaSimplifier.add_congs (mss, newcongs)) mk_cong subgoal_tac loop_tacs unsafe_solvers solvers; |
9715 | 273 |
|
274 |
fun (Simpset {mss, subgoal_tac, mk_cong, loop_tacs, unsafe_solvers, solvers}) |
|
275 |
deleqcongs oldcongs = |
|
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diff
changeset
|
276 |
make_ss (MetaSimplifier.del_congs (mss, oldcongs)) mk_cong subgoal_tac loop_tacs unsafe_solvers solvers; |
2509 | 277 |
|
9715 | 278 |
fun (ss as Simpset {mk_cong, ...}) addcongs newcongs = |
279 |
ss addeqcongs map mk_cong newcongs; |
|
2629 | 280 |
|
9715 | 281 |
fun (ss as Simpset {mk_cong, ...}) delcongs oldcongs = |
282 |
ss deleqcongs map mk_cong oldcongs; |
|
283 |
||
284 |
fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
|
3551 | 285 |
addsimprocs simprocs = |
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Moved meta simplification stuff from Thm to MetaSimplifier.
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diff
changeset
|
286 |
make_ss (MetaSimplifier.add_simprocs (mss, map rep_simproc simprocs)) mk_cong subgoal_tac loop_tacs |
9715 | 287 |
unsafe_solvers solvers; |
2509 | 288 |
|
9715 | 289 |
fun (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers}) |
3551 | 290 |
delsimprocs simprocs = |
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diff
changeset
|
291 |
make_ss (MetaSimplifier.del_simprocs (mss, map rep_simproc simprocs)) mk_cong subgoal_tac |
9715 | 292 |
loop_tacs unsafe_solvers solvers; |
2503 | 293 |
|
9715 | 294 |
fun clear_ss (Simpset {mss, mk_cong, subgoal_tac, loop_tacs = _, unsafe_solvers, solvers}) = |
10412
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diff
changeset
|
295 |
make_ss (MetaSimplifier.clear_mss mss) mk_cong subgoal_tac [] unsafe_solvers solvers; |
6911 | 296 |
|
2503 | 297 |
|
7568 | 298 |
(* merge simpsets *) |
8467 | 299 |
|
300 |
(*ignores subgoal_tac of 2nd simpset!*) |
|
2503 | 301 |
|
3551 | 302 |
fun merge_ss |
9715 | 303 |
(Simpset {mss = mss1, mk_cong, loop_tacs = loop_tacs1, subgoal_tac, |
7568 | 304 |
unsafe_solvers = unsafe_solvers1, solvers = solvers1}, |
9715 | 305 |
Simpset {mss = mss2, mk_cong = _, loop_tacs = loop_tacs2, subgoal_tac = _, |
306 |
unsafe_solvers = unsafe_solvers2, solvers = solvers2}) = |
|
10412
1a1b4c1b2b7c
Moved meta simplification stuff from Thm to MetaSimplifier.
berghofe
parents:
10034
diff
changeset
|
307 |
make_ss (MetaSimplifier.merge_mss (mss1, mss2)) mk_cong subgoal_tac |
9715 | 308 |
(merge_alists loop_tacs1 loop_tacs2) |
309 |
(merge_solvers unsafe_solvers1 unsafe_solvers2) |
|
310 |
(merge_solvers solvers1 solvers2); |
|
2503 | 311 |
|
3557 | 312 |
|
8467 | 313 |
|
5024 | 314 |
(** global and local simpset data **) |
4080
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new implicit simpset mechanism based on Sign.sg anytype data;
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parents:
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diff
changeset
|
315 |
|
5842 | 316 |
(* theory data kind 'Provers/simpset' *) |
4795 | 317 |
|
5842 | 318 |
structure GlobalSimpsetArgs = |
5024 | 319 |
struct |
5842 | 320 |
val name = "Provers/simpset"; |
5024 | 321 |
type T = simpset ref; |
0 | 322 |
|
5024 | 323 |
val empty = ref empty_ss; |
6556 | 324 |
fun copy (ref ss) = (ref ss): T; (*create new reference!*) |
325 |
val prep_ext = copy; |
|
5024 | 326 |
fun merge (ref ss1, ref ss2) = ref (merge_ss (ss1, ss2)); |
327 |
fun print _ (ref ss) = print_ss ss; |
|
328 |
end; |
|
4080
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
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parents:
3728
diff
changeset
|
329 |
|
5842 | 330 |
structure GlobalSimpset = TheoryDataFun(GlobalSimpsetArgs); |
331 |
val print_simpset = GlobalSimpset.print; |
|
332 |
val simpset_ref_of_sg = GlobalSimpset.get_sg; |
|
333 |
val simpset_ref_of = GlobalSimpset.get; |
|
4080
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new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
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diff
changeset
|
334 |
|
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
335 |
|
4795 | 336 |
(* access global simpset *) |
0 | 337 |
|
4080
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
338 |
val simpset_of_sg = ! o simpset_ref_of_sg; |
6391 | 339 |
val simpset_of = simpset_of_sg o Theory.sign_of; |
4080
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
340 |
|
6391 | 341 |
fun SIMPSET tacf state = tacf (simpset_of_sg (Thm.sign_of_thm state)) state; |
342 |
fun SIMPSET' tacf i state = tacf (simpset_of_sg (Thm.sign_of_thm state)) i state; |
|
0 | 343 |
|
5028 | 344 |
val simpset = simpset_of o Context.the_context; |
6391 | 345 |
val simpset_ref = simpset_ref_of_sg o Theory.sign_of o Context.the_context; |
4080
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new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
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diff
changeset
|
346 |
|
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
347 |
|
4795 | 348 |
(* change global simpset *) |
4080
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
349 |
|
7177 | 350 |
fun change_simpset_of f x thy = |
351 |
let val r = simpset_ref_of thy |
|
352 |
in r := f (! r, x); thy end; |
|
353 |
||
354 |
fun change_simpset f x = (change_simpset_of f x (Context.the_context ()); ()); |
|
4080
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
355 |
|
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
356 |
val Addsimps = change_simpset (op addsimps); |
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
357 |
val Delsimps = change_simpset (op delsimps); |
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
358 |
val Addsimprocs = change_simpset (op addsimprocs); |
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
359 |
val Delsimprocs = change_simpset (op delsimprocs); |
9715 | 360 |
val Addcongs = change_simpset (op addcongs); |
361 |
val Delcongs = change_simpset (op delcongs); |
|
2509 | 362 |
|
0 | 363 |
|
5842 | 364 |
(* proof data kind 'Provers/simpset' *) |
4795 | 365 |
|
5842 | 366 |
structure LocalSimpsetArgs = |
367 |
struct |
|
368 |
val name = "Provers/simpset"; |
|
369 |
type T = simpset; |
|
370 |
val init = simpset_of; |
|
371 |
fun print _ ss = print_ss ss; |
|
372 |
end; |
|
4795 | 373 |
|
5842 | 374 |
structure LocalSimpset = ProofDataFun(LocalSimpsetArgs); |
375 |
val print_local_simpset = LocalSimpset.print; |
|
376 |
val get_local_simpset = LocalSimpset.get; |
|
377 |
val put_local_simpset = LocalSimpset.put; |
|
7273 | 378 |
fun map_local_simpset f ctxt = put_local_simpset (f (get_local_simpset ctxt)) ctxt; |
4795 | 379 |
|
380 |
||
5886 | 381 |
(* attributes *) |
382 |
||
383 |
fun change_global_ss f (thy, th) = |
|
384 |
let val r = simpset_ref_of thy |
|
6096 | 385 |
in r := f (! r, [th]); (thy, th) end; |
5886 | 386 |
|
387 |
fun change_local_ss f (ctxt, th) = |
|
6096 | 388 |
let val ss = f (get_local_simpset ctxt, [th]) |
5886 | 389 |
in (put_local_simpset ss ctxt, th) end; |
390 |
||
391 |
val simp_add_global = change_global_ss (op addsimps); |
|
392 |
val simp_del_global = change_global_ss (op delsimps); |
|
393 |
val simp_add_local = change_local_ss (op addsimps); |
|
394 |
val simp_del_local = change_local_ss (op delsimps); |
|
395 |
||
9715 | 396 |
val cong_add_global = change_global_ss (op addcongs); |
397 |
val cong_del_global = change_global_ss (op delcongs); |
|
398 |
val cong_add_local = change_local_ss (op addcongs); |
|
399 |
val cong_del_local = change_local_ss (op delcongs); |
|
400 |
||
5886 | 401 |
|
3557 | 402 |
|
2503 | 403 |
(** simplification tactics **) |
0 | 404 |
|
9715 | 405 |
fun solve_all_tac (mk_cong, subgoal_tac, loop_tacs, unsafe_solvers) mss = |
3557 | 406 |
let |
407 |
val ss = |
|
9715 | 408 |
make_ss mss mk_cong subgoal_tac loop_tacs unsafe_solvers unsafe_solvers; |
4612 | 409 |
val solve1_tac = (subgoal_tac ss THEN_ALL_NEW (K no_tac)) 1 |
3557 | 410 |
in DEPTH_SOLVE solve1_tac end; |
411 |
||
4668
131989b78417
Little reorganization. Loop tactics have names now.
nipkow
parents:
4612
diff
changeset
|
412 |
fun loop_tac loop_tacs = FIRST'(map snd loop_tacs); |
3557 | 413 |
|
8879 | 414 |
(*note: may instantiate unknowns that appear also in other subgoals*) |
415 |
fun generic_simp_tac safe mode = |
|
9715 | 416 |
fn (Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, solvers, ...}) => |
3551 | 417 |
let |
8879 | 418 |
val solvs = app_sols (if safe then solvers else unsafe_solvers); |
4612 | 419 |
fun simp_loop_tac i = |
420 |
asm_rewrite_goal_tac mode |
|
9715 | 421 |
(solve_all_tac (mk_cong, subgoal_tac, loop_tacs, unsafe_solvers)) |
4612 | 422 |
mss i |
11669 | 423 |
THEN (solvs (MetaSimplifier.prems_of_mss mss) i ORELSE |
4668
131989b78417
Little reorganization. Loop tactics have names now.
nipkow
parents:
4612
diff
changeset
|
424 |
TRY ((loop_tac loop_tacs THEN_ALL_NEW simp_loop_tac) i)) |
4612 | 425 |
in simp_loop_tac end; |
0 | 426 |
|
10004 | 427 |
val simp_tac = generic_simp_tac false (false, false, false); |
428 |
val asm_simp_tac = generic_simp_tac false (false, true, false); |
|
429 |
val full_simp_tac = generic_simp_tac false (true, false, false); |
|
430 |
val asm_lr_simp_tac = generic_simp_tac false (true, true, false); |
|
431 |
val asm_full_simp_tac = generic_simp_tac false (true, true, true); |
|
432 |
val safe_asm_full_simp_tac = generic_simp_tac true (true, true, true); |
|
0 | 433 |
|
2629 | 434 |
|
4795 | 435 |
(*the abstraction over the proof state delays the dereferencing*) |
4080
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
436 |
fun Simp_tac i st = simp_tac (simpset ()) i st; |
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
437 |
fun Asm_simp_tac i st = asm_simp_tac (simpset ()) i st; |
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
438 |
fun Full_simp_tac i st = full_simp_tac (simpset ()) i st; |
4722
d2e44673c21e
The new asm_lr_simp_tac is the old asm_full_simp_tac.
nipkow
parents:
4713
diff
changeset
|
439 |
fun Asm_lr_simp_tac i st = asm_lr_simp_tac (simpset ()) i st; |
4080
7dce11095b0a
new implicit simpset mechanism based on Sign.sg anytype data;
wenzelm
parents:
3728
diff
changeset
|
440 |
fun Asm_full_simp_tac i st = asm_full_simp_tac (simpset ()) i st; |
406 | 441 |
|
3557 | 442 |
|
4795 | 443 |
|
5082 | 444 |
(** simplification rules and conversions **) |
3557 | 445 |
|
9715 | 446 |
fun simp rew mode |
447 |
(Simpset {mss, mk_cong, subgoal_tac, loop_tacs, unsafe_solvers, ...}) thm = |
|
3557 | 448 |
let |
9715 | 449 |
val tacf = solve_all_tac (mk_cong, subgoal_tac, loop_tacs, unsafe_solvers); |
4271
3a82492e70c5
changed Pure/Sequence interface -- isatool fixseq;
wenzelm
parents:
4259
diff
changeset
|
450 |
fun prover m th = apsome fst (Seq.pull (tacf m th)); |
5082 | 451 |
in rew mode prover mss thm end; |
452 |
||
10412
1a1b4c1b2b7c
Moved meta simplification stuff from Thm to MetaSimplifier.
berghofe
parents:
10034
diff
changeset
|
453 |
val simp_thm = simp MetaSimplifier.rewrite_thm; |
1a1b4c1b2b7c
Moved meta simplification stuff from Thm to MetaSimplifier.
berghofe
parents:
10034
diff
changeset
|
454 |
val simp_cterm = simp MetaSimplifier.rewrite_cterm; |
3557 | 455 |
|
5082 | 456 |
val simplify = simp_thm (false, false, false); |
457 |
val asm_simplify = simp_thm (false, true, false); |
|
458 |
val full_simplify = simp_thm (true, false, false); |
|
14814
c6b91c8aee1d
added asm_lr_simplify/asm_lr_rewrite and adapted asm_full_simplify/asm_full_rewrite to match to corresponding simp_tacs
schirmer
parents:
13605
diff
changeset
|
459 |
val asm_lr_simplify = simp_thm (true, true, false); |
c6b91c8aee1d
added asm_lr_simplify/asm_lr_rewrite and adapted asm_full_simplify/asm_full_rewrite to match to corresponding simp_tacs
schirmer
parents:
13605
diff
changeset
|
460 |
val asm_full_simplify = simp_thm (true, true, true); |
5082 | 461 |
|
462 |
val rewrite = simp_cterm (false, false, false); |
|
463 |
val asm_rewrite = simp_cterm (false, true, false); |
|
464 |
val full_rewrite = simp_cterm (true, false, false); |
|
14814
c6b91c8aee1d
added asm_lr_simplify/asm_lr_rewrite and adapted asm_full_simplify/asm_full_rewrite to match to corresponding simp_tacs
schirmer
parents:
13605
diff
changeset
|
465 |
val asm_lr_rewrite = simp_cterm (true, true, false); |
c6b91c8aee1d
added asm_lr_simplify/asm_lr_rewrite and adapted asm_full_simplify/asm_full_rewrite to match to corresponding simp_tacs
schirmer
parents:
13605
diff
changeset
|
466 |
val asm_full_rewrite = simp_cterm (true, true, true); |
3557 | 467 |
|
468 |
||
4795 | 469 |
|
5886 | 470 |
(** concrete syntax of attributes **) |
5842 | 471 |
|
5886 | 472 |
(* add / del *) |
5842 | 473 |
|
5928 | 474 |
val simpN = "simp"; |
9715 | 475 |
val congN = "cong"; |
10412
1a1b4c1b2b7c
Moved meta simplification stuff from Thm to MetaSimplifier.
berghofe
parents:
10034
diff
changeset
|
476 |
val addN = "add"; |
1a1b4c1b2b7c
Moved meta simplification stuff from Thm to MetaSimplifier.
berghofe
parents:
10034
diff
changeset
|
477 |
val delN = "del"; |
6911 | 478 |
val onlyN = "only"; |
9899 | 479 |
val no_asmN = "no_asm"; |
480 |
val no_asm_useN = "no_asm_use"; |
|
481 |
val no_asm_simpN = "no_asm_simp"; |
|
13605 | 482 |
val asm_lrN = "asm_lr"; |
5842 | 483 |
|
8634 | 484 |
val simp_attr = |
485 |
(Attrib.add_del_args simp_add_global simp_del_global, |
|
486 |
Attrib.add_del_args simp_add_local simp_del_local); |
|
5842 | 487 |
|
9715 | 488 |
val cong_attr = |
489 |
(Attrib.add_del_args cong_add_global cong_del_global, |
|
490 |
Attrib.add_del_args cong_add_local cong_del_local); |
|
491 |
||
5842 | 492 |
|
493 |
(* conversions *) |
|
494 |
||
9899 | 495 |
local |
496 |
||
497 |
fun conv_mode x = |
|
498 |
((Args.parens (Args.$$$ no_asmN) >> K simplify || |
|
499 |
Args.parens (Args.$$$ no_asm_simpN) >> K asm_simplify || |
|
500 |
Args.parens (Args.$$$ no_asm_useN) >> K full_simplify || |
|
501 |
Scan.succeed asm_full_simplify) |> Scan.lift) x; |
|
502 |
||
11938 | 503 |
fun simplified_att get args = |
504 |
Attrib.syntax (conv_mode -- args >> (fn (f, ths) => |
|
505 |
Drule.rule_attribute (fn x => f ((if null ths then I else clear_ss) (get x) addsimps ths)))); |
|
9899 | 506 |
|
507 |
in |
|
508 |
||
509 |
val simplified_attr = |
|
11938 | 510 |
(simplified_att simpset_of Attrib.global_thmss, |
511 |
simplified_att get_local_simpset Attrib.local_thmss); |
|
9899 | 512 |
|
513 |
end; |
|
5842 | 514 |
|
515 |
||
516 |
(* setup_attrs *) |
|
517 |
||
518 |
val setup_attrs = Attrib.add_attributes |
|
9899 | 519 |
[(simpN, simp_attr, "declaration of simplification rule"), |
520 |
(congN, cong_attr, "declaration of Simplifier congruence rule"), |
|
521 |
("simplified", simplified_attr, "simplified rule")]; |
|
5842 | 522 |
|
523 |
||
524 |
||
525 |
(** proof methods **) |
|
526 |
||
527 |
(* simplification *) |
|
528 |
||
8700 | 529 |
val simp_options = |
9899 | 530 |
(Args.parens (Args.$$$ no_asmN) >> K simp_tac || |
531 |
Args.parens (Args.$$$ no_asm_simpN) >> K asm_simp_tac || |
|
532 |
Args.parens (Args.$$$ no_asm_useN) >> K full_simp_tac || |
|
13605 | 533 |
Args.parens (Args.$$$ asm_lrN) >> K asm_lr_simp_tac || |
8700 | 534 |
Scan.succeed asm_full_simp_tac); |
535 |
||
9715 | 536 |
val cong_modifiers = |
9720 | 537 |
[Args.$$$ congN -- Args.colon >> K ((I, cong_add_local):Method.modifier), |
10034 | 538 |
Args.$$$ congN -- Args.add -- Args.colon >> K (I, cong_add_local), |
539 |
Args.$$$ congN -- Args.del -- Args.colon >> K (I, cong_del_local)]; |
|
9715 | 540 |
|
5928 | 541 |
val simp_modifiers = |
8815 | 542 |
[Args.$$$ simpN -- Args.colon >> K (I, simp_add_local), |
10034 | 543 |
Args.$$$ simpN -- Args.add -- Args.colon >> K (I, simp_add_local), |
544 |
Args.$$$ simpN -- Args.del -- Args.colon >> K (I, simp_del_local), |
|
9861 | 545 |
Args.$$$ simpN -- Args.$$$ onlyN -- Args.colon >> K (map_local_simpset clear_ss, simp_add_local)] |
546 |
@ cong_modifiers; |
|
5928 | 547 |
|
548 |
val simp_modifiers' = |
|
10034 | 549 |
[Args.add -- Args.colon >> K (I, simp_add_local), |
550 |
Args.del -- Args.colon >> K (I, simp_del_local), |
|
9861 | 551 |
Args.$$$ onlyN -- Args.colon >> K (map_local_simpset clear_ss, simp_add_local)] |
552 |
@ cong_modifiers; |
|
5928 | 553 |
|
8700 | 554 |
fun simp_args more_mods = |
555 |
Method.sectioned_args (Args.bang_facts -- Scan.lift simp_options) (more_mods @ simp_modifiers'); |
|
556 |
||
8170 | 557 |
|
8700 | 558 |
fun simp_method (prems, tac) ctxt = Method.METHOD (fn facts => |
559 |
ALLGOALS (Method.insert_tac (prems @ facts)) THEN |
|
10821 | 560 |
(CHANGED_PROP o ALLGOALS o tac) (get_local_simpset ctxt)); |
8700 | 561 |
|
562 |
fun simp_method' (prems, tac) ctxt = Method.METHOD (fn facts => |
|
10821 | 563 |
HEADGOAL (Method.insert_tac (prems @ facts) THEN' |
564 |
(CHANGED_PROP oo tac) (get_local_simpset ctxt))); |
|
9715 | 565 |
|
5842 | 566 |
|
567 |
(* setup_methods *) |
|
568 |
||
8467 | 569 |
fun setup_methods more_mods = Method.add_methods |
8700 | 570 |
[(simpN, simp_args more_mods simp_method', "simplification"), |
571 |
("simp_all", simp_args more_mods simp_method, "simplification (all goals)")]; |
|
5842 | 572 |
|
573 |
||
574 |
||
4795 | 575 |
(** theory setup **) |
576 |
||
8467 | 577 |
val setup = [GlobalSimpset.init, LocalSimpset.init, setup_attrs]; |
578 |
fun method_setup mods = [setup_methods mods]; |
|
4795 | 579 |
|
8228 | 580 |
fun easy_setup reflect trivs = |
581 |
let |
|
582 |
val trivialities = Drule.reflexive_thm :: trivs; |
|
583 |
||
584 |
fun unsafe_solver_tac prems = FIRST' [resolve_tac (trivialities @ prems), assume_tac]; |
|
585 |
val unsafe_solver = mk_solver "easy unsafe" unsafe_solver_tac; |
|
586 |
||
587 |
(*no premature instantiation of variables during simplification*) |
|
588 |
fun safe_solver_tac prems = FIRST' [match_tac (trivialities @ prems), eq_assume_tac]; |
|
589 |
val safe_solver = mk_solver "easy safe" safe_solver_tac; |
|
590 |
||
8243 | 591 |
fun mk_eq thm = |
8228 | 592 |
if Logic.is_equals (Thm.concl_of thm) then [thm] |
593 |
else [thm RS reflect] handle THM _ => []; |
|
594 |
||
8243 | 595 |
fun mksimps thm = mk_eq (Drule.forall_elim_vars (#maxidx (Thm.rep_thm thm) + 1) thm); |
596 |
||
8228 | 597 |
fun init_ss thy = |
598 |
(simpset_ref_of thy := |
|
599 |
empty_ss setsubgoaler asm_simp_tac |
|
600 |
setSSolver safe_solver |
|
601 |
setSolver unsafe_solver |
|
602 |
setmksimps mksimps; thy); |
|
8467 | 603 |
in setup @ method_setup [] @ [init_ss] end; |
8228 | 604 |
|
4795 | 605 |
|
8667 | 606 |
|
607 |
(** outer syntax **) |
|
608 |
||
609 |
val print_simpsetP = |
|
610 |
OuterSyntax.improper_command "print_simpset" "print context of Simplifier" |
|
611 |
OuterSyntax.Keyword.diag |
|
9513 | 612 |
(Scan.succeed (Toplevel.no_timing o Toplevel.unknown_context o (Toplevel.keep |
9010 | 613 |
(Toplevel.node_case print_simpset (print_local_simpset o Proof.context_of))))); |
8667 | 614 |
|
615 |
val _ = OuterSyntax.add_parsers [print_simpsetP]; |
|
616 |
||
1243 | 617 |
end; |
4795 | 618 |
|
619 |
||
620 |
structure BasicSimplifier: BASIC_SIMPLIFIER = Simplifier; |
|
621 |
open BasicSimplifier; |