author | wenzelm |
Fri, 17 Jun 2005 18:33:33 +0200 | |
changeset 16448 | 6c45c5416b79 |
parent 16347 | 9b3265182607 |
child 16500 | 09d43301b195 |
permissions | -rw-r--r-- |
5824 | 1 |
(* Title: Pure/Isar/method.ML |
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ID: $Id$ |
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Author: Markus Wenzel, TU Muenchen |
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Proof methods. |
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*) |
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signature BASIC_METHOD = |
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sig |
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val trace_rules: bool ref |
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val print_methods: theory -> unit |
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val Method: bstring -> (Args.src -> Proof.context -> Proof.method) -> string -> unit |
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end; |
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signature METHOD = |
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sig |
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include BASIC_METHOD |
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type src |
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val trace: Proof.context -> thm list -> unit |
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val RAW_METHOD: (thm list -> tactic) -> Proof.method |
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val RAW_METHOD_CASES: (thm list -> RuleCases.tactic) -> Proof.method |
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val METHOD: (thm list -> tactic) -> Proof.method |
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val METHOD_CASES: (thm list -> RuleCases.tactic) -> Proof.method |
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val SIMPLE_METHOD: tactic -> Proof.method |
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val SIMPLE_METHOD': ((int -> tactic) -> tactic) -> (int -> tactic) -> Proof.method |
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val fail: Proof.method |
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val succeed: Proof.method |
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val defer: int option -> Proof.method |
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val prefer: int -> Proof.method |
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val insert_tac: thm list -> int -> tactic |
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val insert: thm list -> Proof.method |
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val insert_facts: Proof.method |
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val unfold: thm list -> Proof.method |
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val fold: thm list -> Proof.method |
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val multi_resolve: thm list -> thm -> thm Seq.seq |
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val multi_resolves: thm list -> thm list -> thm Seq.seq |
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val rules_tac: Proof.context -> int option -> int -> tactic |
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val rule_tac: thm list -> thm list -> int -> tactic |
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val some_rule_tac: thm list -> Proof.context -> thm list -> int -> tactic |
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val rule: thm list -> Proof.method |
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val erule: int -> thm list -> Proof.method |
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val drule: int -> thm list -> Proof.method |
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val frule: int -> thm list -> Proof.method |
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val this: Proof.method |
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val assumption: Proof.context -> Proof.method |
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
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val bires_inst_tac: bool -> Proof.context -> (indexname * string) list -> thm -> int -> tactic |
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val set_tactic: (Proof.context -> thm list -> tactic) -> unit |
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val tactic: string -> Proof.context -> Proof.method |
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exception METHOD_FAIL of (string * Position.T) * exn |
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val method: theory -> src -> Proof.context -> Proof.method |
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val add_method: bstring * (src -> Proof.context -> Proof.method) * string |
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-> theory -> theory |
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val add_methods: (bstring * (src -> Proof.context -> Proof.method) * string) list |
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-> theory -> theory |
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val syntax: (Proof.context * Args.T list -> 'a * (Proof.context * Args.T list)) -> |
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src -> Proof.context -> Proof.context * 'a |
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val simple_args: (Args.T list -> 'a * Args.T list) |
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-> ('a -> Proof.context -> Proof.method) -> src -> Proof.context -> Proof.method |
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val ctxt_args: (Proof.context -> Proof.method) -> src -> Proof.context -> Proof.method |
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val no_args: Proof.method -> src -> Proof.context -> Proof.method |
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type modifier |
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val sectioned_args: (Proof.context * Args.T list -> 'a * (Proof.context * Args.T list)) -> |
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(Args.T list -> modifier * Args.T list) list -> |
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('a -> Proof.context -> 'b) -> src -> Proof.context -> 'b |
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val bang_sectioned_args: |
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(Args.T list -> modifier * Args.T list) list -> |
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(thm list -> Proof.context -> 'a) -> src -> Proof.context -> 'a |
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val bang_sectioned_args': |
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(Args.T list -> modifier * Args.T list) list -> |
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(Proof.context * Args.T list -> 'a * (Proof.context * Args.T list)) -> |
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('a -> thm list -> Proof.context -> 'b) -> src -> Proof.context -> 'b |
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val only_sectioned_args: |
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(Args.T list -> modifier * Args.T list) list -> |
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(Proof.context -> 'a) -> src -> Proof.context -> 'a |
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val thms_ctxt_args: (thm list -> Proof.context -> 'a) -> src -> Proof.context -> 'a |
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val thms_args: (thm list -> 'a) -> src -> Proof.context -> 'a |
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val thm_args: (thm -> 'a) -> src -> Proof.context -> 'a |
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datatype text = |
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Basic of (Proof.context -> Proof.method) | |
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Source of src | |
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Then of text list | |
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Orelse of text list | |
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Try of text | |
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Repeat1 of text |
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val refine: text -> Proof.state -> Proof.state Seq.seq |
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val refine_end: text -> Proof.state -> Proof.state Seq.seq |
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val proof: text option -> Proof.state -> Proof.state Seq.seq |
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val local_qed: bool -> text option |
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-> (Proof.context -> string * (string * thm list) list -> unit) * |
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(Proof.context -> thm -> unit) -> Proof.state -> Proof.state Seq.seq |
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val local_terminal_proof: text * text option |
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-> (Proof.context -> string * (string * thm list) list -> unit) * |
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(Proof.context -> thm -> unit) -> Proof.state -> Proof.state Seq.seq |
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val local_default_proof: (Proof.context -> string * (string * thm list) list -> unit) * |
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(Proof.context -> thm -> unit) -> Proof.state -> Proof.state Seq.seq |
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val local_immediate_proof: (Proof.context -> string * (string * thm list) list -> unit) * |
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(Proof.context -> thm -> unit) -> Proof.state -> Proof.state Seq.seq |
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val local_done_proof: (Proof.context -> string * (string * thm list) list -> unit) * |
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(Proof.context -> thm -> unit) -> Proof.state -> Proof.state Seq.seq |
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val global_qed: bool -> text option |
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-> Proof.state -> theory * ((string * string) * (string * thm list) list) |
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val global_terminal_proof: text * text option |
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-> Proof.state -> theory * ((string * string) * (string * thm list) list) |
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val global_default_proof: Proof.state -> theory * ((string * string) * (string * thm list) list) |
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val global_immediate_proof: Proof.state -> |
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theory * ((string * string) * (string * thm list) list) |
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val global_done_proof: Proof.state -> theory * ((string * string) * (string * thm list) list) |
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val goal_args: (Args.T list -> 'a * Args.T list) -> ('a -> int -> tactic) |
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-> src -> Proof.context -> Proof.method |
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val goal_args': (Proof.context * Args.T list -> 'a * (Proof.context * Args.T list)) |
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-> ('a -> int -> tactic) -> src -> Proof.context -> Proof.method |
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
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val goal_args_ctxt: (Args.T list -> 'a * Args.T list) -> (Proof.context -> 'a -> int -> tactic) |
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-> src -> Proof.context -> Proof.method |
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
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val goal_args_ctxt': (Proof.context * Args.T list -> 'a * (Proof.context * Args.T list)) |
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-> (Proof.context -> 'a -> int -> tactic) -> src -> Proof.context -> Proof.method |
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end; |
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structure Method: METHOD = |
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struct |
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type src = Args.src; |
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rule context and attributes moved to rule_context.ML;
wenzelm
parents:
12311
diff
changeset
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(** proof methods **) |
5db4b4596d1a
rule context and attributes moved to rule_context.ML;
wenzelm
parents:
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diff
changeset
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5db4b4596d1a
rule context and attributes moved to rule_context.ML;
wenzelm
parents:
12311
diff
changeset
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(* tracing *) |
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val trace_rules = ref false; |
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fun trace ctxt rules = |
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conditional (! trace_rules andalso not (null rules)) (fn () => |
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Pretty.big_list "rules:" (map (ProofContext.pretty_thm ctxt) rules) |
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|> Pretty.string_of |> tracing); |
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(* make methods *) |
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val RAW_METHOD = Proof.method; |
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val RAW_METHOD_CASES = Proof.method_cases; |
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fun METHOD m = Proof.method (fn facts => TRY Tactic.conjunction_tac THEN m facts); |
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fun METHOD_CASES m = |
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Proof.method_cases (fn facts => Seq.THEN (TRY Tactic.conjunction_tac, m facts)); |
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(* primitive *) |
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val fail = METHOD (K no_tac); |
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val succeed = METHOD (K all_tac); |
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(* shuffle *) |
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fun prefer i = METHOD (K (Tactic.defer_tac i THEN PRIMITIVE (Thm.permute_prems 0 ~1))); |
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fun defer opt_i = METHOD (K (Tactic.defer_tac (if_none opt_i 1))); |
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(* insert *) |
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local |
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fun cut_rule_tac raw_rule = |
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let |
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val rule = Drule.forall_intr_vars raw_rule; |
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val revcut_rl = Drule.incr_indexes_wrt [] [] [] [rule] Drule.revcut_rl; |
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in Tactic.rtac (rule COMP revcut_rl) end; |
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in |
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fun insert_tac [] i = all_tac |
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| insert_tac facts i = EVERY (map (fn th => cut_rule_tac th i) facts); |
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val insert_facts = METHOD (ALLGOALS o insert_tac); |
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fun insert thms = METHOD (fn _ => ALLGOALS (insert_tac thms)); |
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fun SIMPLE_METHOD tac = METHOD (fn facts => ALLGOALS (insert_tac facts) THEN tac); |
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fun SIMPLE_METHOD' quant tac = METHOD (fn facts => quant (insert_tac facts THEN' tac)); |
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12324
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rule context and attributes moved to rule_context.ML;
wenzelm
parents:
12311
diff
changeset
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end; |
5db4b4596d1a
rule context and attributes moved to rule_context.ML;
wenzelm
parents:
12311
diff
changeset
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(* unfold/fold definitions *) |
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fun unfold_meth ths = SIMPLE_METHOD (CHANGED_PROP (rewrite_goals_tac ths)); |
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fun fold_meth ths = SIMPLE_METHOD (CHANGED_PROP (fold_goals_tac ths)); |
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(* atomize rule statements *) |
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fun atomize false = SIMPLE_METHOD' HEADGOAL (CHANGED_PROP o ObjectLogic.atomize_tac) |
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| atomize true = RAW_METHOD (K (HEADGOAL (CHANGED_PROP o ObjectLogic.full_atomize_tac))); |
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(* unfold intro/elim rules *) |
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fun intro ths = SIMPLE_METHOD' HEADGOAL (CHANGED_PROP o REPEAT_ALL_NEW (Tactic.match_tac ths)); |
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fun elim ths = SIMPLE_METHOD' HEADGOAL (CHANGED_PROP o REPEAT_ALL_NEW (Tactic.ematch_tac ths)); |
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(* multi_resolve *) |
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local |
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fun res th i rule = |
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Thm.biresolution false [(false, th)] i rule handle THM _ => Seq.empty; |
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fun multi_res _ [] rule = Seq.single rule |
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| multi_res i (th :: ths) rule = Seq.flat (Seq.map (res th i) (multi_res (i + 1) ths rule)); |
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in |
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val multi_resolve = multi_res 1; |
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fun multi_resolves facts rules = Seq.flat (Seq.map (multi_resolve facts) (Seq.of_list rules)); |
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end; |
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(* rules_tac *) |
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local |
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val remdups_tac = SUBGOAL (fn (g, i) => |
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let val prems = Logic.strip_assums_hyp g in |
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REPEAT_DETERM_N (length prems - length (gen_distinct op aconv prems)) |
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(Tactic.ematch_tac [Drule.remdups_rl] i THEN Tactic.eq_assume_tac i) |
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end); |
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fun REMDUPS tac = tac THEN_ALL_NEW remdups_tac; |
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fun gen_eq_set e s1 s2 = |
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length s1 = length s2 andalso |
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gen_subset e (s1, s2) andalso gen_subset e (s2, s1); |
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val bires_tac = Tactic.biresolution_from_nets_tac ContextRules.orderlist; |
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fun safe_step_tac ctxt = |
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ContextRules.Swrap ctxt |
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(eq_assume_tac ORELSE' |
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bires_tac true (ContextRules.netpair_bang ctxt)); |
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fun unsafe_step_tac ctxt = |
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ContextRules.wrap ctxt |
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(assume_tac APPEND' |
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bires_tac false (ContextRules.netpair_bang ctxt) APPEND' |
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bires_tac false (ContextRules.netpair ctxt)); |
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fun step_tac ctxt i = |
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REPEAT_DETERM1 (REMDUPS (safe_step_tac ctxt) i) ORELSE |
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REMDUPS (unsafe_step_tac ctxt) i; |
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fun intpr_tac ctxt gs d lim = SUBGOAL (fn (g, i) => if d > lim then no_tac else |
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let |
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val ps = Logic.strip_assums_hyp g; |
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val c = Logic.strip_assums_concl g; |
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in |
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if gen_mem (fn ((ps1, c1), (ps2, c2)) => |
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c1 aconv c2 andalso gen_eq_set op aconv ps1 ps2) ((ps, c), gs) then no_tac |
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else (step_tac ctxt THEN_ALL_NEW intpr_tac ctxt ((ps, c) :: gs) (d + 1) lim) i |
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end); |
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in |
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fun rules_tac ctxt opt_lim = |
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SELECT_GOAL (DEEPEN (2, if_none opt_lim 20) (intpr_tac ctxt [] 0) 4 1); |
12347 | 265 |
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end; |
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(* rule_tac etc. *) |
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local |
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||
10541
fdec07d4f047
resolveq(_cases)_tac moved to HOL/Tools/induct_method.ML;
wenzelm
parents:
10529
diff
changeset
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273 |
fun gen_rule_tac tac rules [] i st = tac rules i st |
12324
5db4b4596d1a
rule context and attributes moved to rule_context.ML;
wenzelm
parents:
12311
diff
changeset
|
274 |
| gen_rule_tac tac rules facts i st = |
5db4b4596d1a
rule context and attributes moved to rule_context.ML;
wenzelm
parents:
12311
diff
changeset
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275 |
Seq.flat (Seq.map (fn rule => (tac o single) rule i st) (multi_resolves facts rules)); |
7130 | 276 |
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10744 | 277 |
fun gen_arule_tac tac j rules facts = |
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EVERY' (gen_rule_tac tac rules facts :: replicate j Tactic.assume_tac); |
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fun gen_some_rule_tac tac arg_rules ctxt facts = SUBGOAL (fn (goal, i) => |
281 |
let |
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val rules = |
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if not (null arg_rules) then arg_rules |
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else List.concat (ContextRules.find_rules false facts goal ctxt) |
12055 | 285 |
in trace ctxt rules; tac rules facts i end); |
10309 | 286 |
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fun meth tac x = METHOD (HEADGOAL o tac x); |
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fun meth' tac x y = METHOD (HEADGOAL o tac x y); |
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in |
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val rule_tac = gen_rule_tac Tactic.resolve_tac; |
293 |
val rule = meth rule_tac; |
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val some_rule_tac = gen_some_rule_tac rule_tac; |
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val some_rule = meth' some_rule_tac; |
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297 |
val erule = meth' (gen_arule_tac Tactic.eresolve_tac); |
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val drule = meth' (gen_arule_tac Tactic.dresolve_tac); |
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val frule = meth' (gen_arule_tac Tactic.forward_tac); |
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end; |
302 |
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8195 | 304 |
(* this *) |
305 |
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8671 | 306 |
val this = METHOD (EVERY o map (HEADGOAL o Tactic.rtac)); |
8195 | 307 |
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||
309 |
(* assumption *) |
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|
10378
98c95ebf804f
assumption / finish: handle non-atomic assumptions from context as well;
wenzelm
parents:
10309
diff
changeset
|
311 |
fun asm_tac ths = |
15574
b1d1b5bfc464
Removed practically all references to Library.foldr.
skalberg
parents:
15570
diff
changeset
|
312 |
foldr (op APPEND') (K no_tac) (map (fn th => Tactic.rtac th THEN_ALL_NEW assume_tac) ths); |
10378
98c95ebf804f
assumption / finish: handle non-atomic assumptions from context as well;
wenzelm
parents:
10309
diff
changeset
|
313 |
|
10405 | 314 |
fun assm_tac ctxt = |
315 |
assume_tac APPEND' |
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316 |
asm_tac (ProofContext.prems_of ctxt) APPEND' |
|
317 |
Tactic.rtac Drule.reflexive_thm; |
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7555 | 319 |
fun assumption_tac ctxt [] = assm_tac ctxt |
10378
98c95ebf804f
assumption / finish: handle non-atomic assumptions from context as well;
wenzelm
parents:
10309
diff
changeset
|
320 |
| assumption_tac _ [fact] = asm_tac [fact] |
7555 | 321 |
| assumption_tac _ _ = K no_tac; |
7419 | 322 |
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8671 | 323 |
fun assumption ctxt = METHOD (HEADGOAL o assumption_tac ctxt); |
7419 | 324 |
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325 |
||
9539 | 326 |
(* res_inst_tac etc. *) |
8238 | 327 |
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14718 | 328 |
(*Reimplemented to support both static (Isar) and dynamic (proof state) |
329 |
context. By Clemens Ballarin.*) |
|
12119 | 330 |
|
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
331 |
fun bires_inst_tac bires_flag ctxt insts thm = |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
332 |
let |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
333 |
val sign = ProofContext.sign_of ctxt; |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
334 |
(* Separate type and term insts *) |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
335 |
fun has_type_var ((x, _), _) = (case Symbol.explode x of |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
336 |
"'"::cs => true | cs => false); |
15570 | 337 |
val Tinsts = List.filter has_type_var insts; |
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
338 |
val tinsts = filter_out has_type_var insts; |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
339 |
(* Tactic *) |
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Methods rule_tac etc support static (Isar) contexts.
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|
340 |
fun tac i st = |
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Methods rule_tac etc support static (Isar) contexts.
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|
341 |
let |
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Methods rule_tac etc support static (Isar) contexts.
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|
342 |
(* Preprocess state: extract environment information: |
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Methods rule_tac etc support static (Isar) contexts.
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changeset
|
343 |
- variables and their types |
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Methods rule_tac etc support static (Isar) contexts.
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changeset
|
344 |
- type variables and their sorts |
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Methods rule_tac etc support static (Isar) contexts.
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parents:
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diff
changeset
|
345 |
- parameters and their types *) |
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Methods rule_tac etc support static (Isar) contexts.
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|
346 |
val (types, sorts) = types_sorts st; |
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Methods rule_tac etc support static (Isar) contexts.
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|
347 |
(* Process type insts: Tinsts_env *) |
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Methods rule_tac etc support static (Isar) contexts.
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|
348 |
fun absent xi = error |
14718 | 349 |
("No such variable in theorem: " ^ Syntax.string_of_vname xi); |
14174
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Methods rule_tac etc support static (Isar) contexts.
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|
350 |
val (rtypes, rsorts) = types_sorts thm; |
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Methods rule_tac etc support static (Isar) contexts.
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|
351 |
fun readT (xi, s) = |
15531 | 352 |
let val S = case rsorts xi of SOME S => S | NONE => absent xi; |
14174
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Methods rule_tac etc support static (Isar) contexts.
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|
353 |
val T = Sign.read_typ (sign, sorts) s; |
15798
016f3be5a5ec
Adapted to new interface of instantiation and unification / matching functions.
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parents:
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|
354 |
val U = TVar (xi, S); |
016f3be5a5ec
Adapted to new interface of instantiation and unification / matching functions.
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parents:
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diff
changeset
|
355 |
in if Sign.typ_instance sign (T, U) then (U, T) |
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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|
356 |
else error |
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Methods rule_tac etc support static (Isar) contexts.
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changeset
|
357 |
("Instantiation of " ^ Syntax.string_of_vname xi ^ " fails") |
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Methods rule_tac etc support static (Isar) contexts.
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|
358 |
end; |
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Methods rule_tac etc support static (Isar) contexts.
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|
359 |
val Tinsts_env = map readT Tinsts; |
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Methods rule_tac etc support static (Isar) contexts.
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changeset
|
360 |
(* Preprocess rule: extract vars and their types, apply Tinsts *) |
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Methods rule_tac etc support static (Isar) contexts.
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parents:
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|
361 |
fun get_typ xi = |
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Methods rule_tac etc support static (Isar) contexts.
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parents:
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diff
changeset
|
362 |
(case rtypes xi of |
15798
016f3be5a5ec
Adapted to new interface of instantiation and unification / matching functions.
berghofe
parents:
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diff
changeset
|
363 |
SOME T => typ_subst_atomic Tinsts_env T |
15531 | 364 |
| NONE => absent xi); |
14174
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Methods rule_tac etc support static (Isar) contexts.
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parents:
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|
365 |
val (xis, ss) = Library.split_list tinsts; |
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Methods rule_tac etc support static (Isar) contexts.
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|
366 |
val Ts = map get_typ xis; |
14718 | 367 |
val (_, _, Bi, _) = dest_state(st,i) |
368 |
val params = Logic.strip_params Bi |
|
369 |
(* params of subgoal i as string typ pairs *) |
|
370 |
val params = rev(Term.rename_wrt_term Bi params) |
|
371 |
(* as they are printed: bound variables with *) |
|
14508
859b11514537
Experimental command for instantiation of locales in proof contexts:
ballarin
parents:
14215
diff
changeset
|
372 |
(* the same name are renamed during printing *) |
14174
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Methods rule_tac etc support static (Isar) contexts.
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|
373 |
fun types' (a, ~1) = (case assoc (params, a) of |
15531 | 374 |
NONE => types (a, ~1) |
14174
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Methods rule_tac etc support static (Isar) contexts.
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parents:
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|
375 |
| some => some) |
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Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
376 |
| types' xi = types xi; |
15973 | 377 |
fun internal x = is_some (types' (x, ~1)); |
15703 | 378 |
val used = Drule.add_used thm (Drule.add_used st []); |
14718 | 379 |
val (ts, envT) = |
380 |
ProofContext.read_termTs_schematic ctxt internal types' sorts used (ss ~~ Ts); |
|
15798
016f3be5a5ec
Adapted to new interface of instantiation and unification / matching functions.
berghofe
parents:
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diff
changeset
|
381 |
val envT' = map (fn (ixn, T) => |
15973 | 382 |
(TVar (ixn, the (rsorts ixn)), T)) envT @ Tinsts_env; |
14718 | 383 |
val cenv = |
384 |
map |
|
385 |
(fn (xi, t) => |
|
386 |
pairself (Thm.cterm_of sign) (Var (xi, fastype_of t), t)) |
|
387 |
(gen_distinct |
|
388 |
(fn ((x1, t1), (x2, t2)) => x1 = x2 andalso t1 aconv t2) |
|
389 |
(xis ~~ ts)); |
|
390 |
(* Lift and instantiate rule *) |
|
391 |
val {maxidx, ...} = rep_thm st; |
|
392 |
val paramTs = map #2 params |
|
393 |
and inc = maxidx+1 |
|
394 |
fun liftvar (Var ((a,j), T)) = |
|
395 |
Var((a, j+inc), paramTs ---> incr_tvar inc T) |
|
396 |
| liftvar t = raise TERM("Variable expected", [t]); |
|
397 |
fun liftterm t = list_abs_free |
|
398 |
(params, Logic.incr_indexes(paramTs,inc) t) |
|
399 |
fun liftpair (cv,ct) = |
|
400 |
(cterm_fun liftvar cv, cterm_fun liftterm ct) |
|
15798
016f3be5a5ec
Adapted to new interface of instantiation and unification / matching functions.
berghofe
parents:
15713
diff
changeset
|
401 |
val lifttvar = pairself (ctyp_of sign o incr_tvar inc); |
14718 | 402 |
val rule = Drule.instantiate |
15798
016f3be5a5ec
Adapted to new interface of instantiation and unification / matching functions.
berghofe
parents:
15713
diff
changeset
|
403 |
(map lifttvar envT', map liftpair cenv) |
14718 | 404 |
(lift_rule (st, i) thm) |
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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diff
changeset
|
405 |
in |
14718 | 406 |
if i > nprems_of st then no_tac st |
407 |
else st |> |
|
408 |
compose_tac (bires_flag, rule, nprems_of thm) i |
|
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
409 |
end |
14718 | 410 |
handle TERM (msg,_) => (warning msg; no_tac st) |
411 |
| THM (msg,_,_) => (warning msg; no_tac st); |
|
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
412 |
in |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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diff
changeset
|
413 |
tac |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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diff
changeset
|
414 |
end; |
8238 | 415 |
|
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
416 |
fun gen_inst _ tac _ (quant, ([], thms)) = |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
417 |
METHOD (fn facts => quant (insert_tac facts THEN' tac thms)) |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
418 |
| gen_inst inst_tac _ ctxt (quant, (insts, [thm])) = |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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|
419 |
METHOD (fn facts => |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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diff
changeset
|
420 |
quant (insert_tac facts THEN' inst_tac ctxt insts thm)) |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
421 |
| gen_inst _ _ _ _ = error "Cannot have instantiations with multiple rules"; |
14718 | 422 |
|
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
423 |
val res_inst_meth = gen_inst (bires_inst_tac false) Tactic.resolve_tac; |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
424 |
|
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
425 |
val eres_inst_meth = gen_inst (bires_inst_tac true) Tactic.eresolve_tac; |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
426 |
|
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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diff
changeset
|
427 |
(* Preserve Var indexes of rl; increment revcut_rl instead. |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
428 |
Copied from tactic.ML *) |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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diff
changeset
|
429 |
fun make_elim_preserve rl = |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
430 |
let val {maxidx,...} = rep_thm rl |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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changeset
|
431 |
fun cvar xi = cterm_of (Theory.sign_of ProtoPure.thy) (Var(xi,propT)); |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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diff
changeset
|
432 |
val revcut_rl' = |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
433 |
instantiate ([], [(cvar("V",0), cvar("V",maxidx+1)), |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
434 |
(cvar("W",0), cvar("W",maxidx+1))]) revcut_rl |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
435 |
val arg = (false, rl, nprems_of rl) |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
436 |
val [th] = Seq.list_of (bicompose false arg 1 revcut_rl') |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
437 |
in th end |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
438 |
handle Bind => raise THM("make_elim_preserve", 1, [rl]); |
8238 | 439 |
|
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
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parents:
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diff
changeset
|
440 |
val cut_inst_meth = |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
441 |
gen_inst |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
442 |
(fn ctxt => fn insts => fn thm => |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
443 |
bires_inst_tac false ctxt insts (make_elim_preserve thm)) |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
444 |
Tactic.cut_rules_tac; |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
445 |
|
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
446 |
val dres_inst_meth = |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
447 |
gen_inst |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
448 |
(fn ctxt => fn insts => fn rule => |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
449 |
bires_inst_tac true ctxt insts (make_elim_preserve rule)) |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
450 |
Tactic.dresolve_tac; |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
451 |
|
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
452 |
val forw_inst_meth = |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
453 |
gen_inst |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
454 |
(fn ctxt => fn insts => fn rule => |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
455 |
bires_inst_tac false ctxt insts (make_elim_preserve rule) THEN' |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
456 |
assume_tac) |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
457 |
Tactic.forward_tac; |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
458 |
|
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
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diff
changeset
|
459 |
fun subgoal_tac ctxt sprop = |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
460 |
DETERM o bires_inst_tac false ctxt [(("psi", 0), sprop)] cut_rl THEN' |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
461 |
SUBGOAL (fn (prop, _) => |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
462 |
let val concl' = Logic.strip_assums_concl prop in |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
463 |
if null (term_tvars concl') then () |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
464 |
else warning "Type variables in new subgoal: add a type constraint?"; |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
465 |
all_tac |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
466 |
end); |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
467 |
|
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
468 |
fun subgoals_tac ctxt sprops = EVERY' (map (subgoal_tac ctxt) sprops); |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
469 |
|
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
470 |
fun thin_tac ctxt s = |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
471 |
bires_inst_tac true ctxt [(("V", 0), s)] thin_rl; |
8238 | 472 |
|
14718 | 473 |
|
8329 | 474 |
(* simple Prolog interpreter *) |
475 |
||
476 |
fun prolog_tac rules facts = |
|
477 |
DEPTH_SOLVE_1 (HEADGOAL (Tactic.assume_tac APPEND' Tactic.resolve_tac (facts @ rules))); |
|
478 |
||
479 |
val prolog = METHOD o prolog_tac; |
|
480 |
||
481 |
||
8351 | 482 |
(* ML tactics *) |
483 |
||
484 |
val tactic_ref = ref ((fn _ => raise Match): Proof.context -> thm list -> tactic); |
|
485 |
fun set_tactic f = tactic_ref := f; |
|
486 |
||
487 |
fun tactic txt ctxt = METHOD (fn facts => |
|
9631 | 488 |
(Context.use_mltext |
15829 | 489 |
("let fun tactic (ctxt: Proof.context) (facts: thm list) : tactic = \ |
490 |
\let val thm = ProofContext.get_thm_closure ctxt o rpair NONE\n\ |
|
491 |
\ and thms = ProofContext.get_thms_closure ctxt o rpair NONE in\n" |
|
9631 | 492 |
^ txt ^ |
15829 | 493 |
"\nend in Method.set_tactic tactic end") |
15531 | 494 |
false NONE; |
495 |
Context.setmp (SOME (ProofContext.theory_of ctxt)) (! tactic_ref ctxt) facts)); |
|
8351 | 496 |
|
497 |
||
5824 | 498 |
|
499 |
(** methods theory data **) |
|
500 |
||
501 |
(* data kind 'Isar/methods' *) |
|
502 |
||
16448 | 503 |
structure MethodsData = TheoryDataFun |
504 |
(struct |
|
5824 | 505 |
val name = "Isar/methods"; |
16347 | 506 |
type T = (((src -> Proof.context -> Proof.method) * string) * stamp) NameSpace.table; |
5824 | 507 |
|
16347 | 508 |
val empty = NameSpace.empty_table; |
6546 | 509 |
val copy = I; |
16448 | 510 |
val extend = I; |
511 |
fun merge _ tables = NameSpace.merge_tables eq_snd tables handle Symtab.DUPS dups => |
|
16347 | 512 |
error ("Attempt to merge different versions of method(s) " ^ commas_quote dups); |
5824 | 513 |
|
16347 | 514 |
fun print _ meths = |
5824 | 515 |
let |
516 |
fun prt_meth (name, ((_, comment), _)) = Pretty.block |
|
6849 | 517 |
[Pretty.str (name ^ ":"), Pretty.brk 2, Pretty.str comment]; |
5824 | 518 |
in |
16347 | 519 |
[Pretty.big_list "methods:" (map prt_meth (NameSpace.extern_table meths))] |
9222 | 520 |
|> Pretty.chunks |> Pretty.writeln |
5824 | 521 |
end; |
16448 | 522 |
end); |
5824 | 523 |
|
15801 | 524 |
val _ = Context.add_setup [MethodsData.init]; |
5824 | 525 |
val print_methods = MethodsData.print; |
7611 | 526 |
|
5824 | 527 |
|
528 |
(* get methods *) |
|
529 |
||
5916 | 530 |
exception METHOD_FAIL of (string * Position.T) * exn; |
531 |
||
5824 | 532 |
fun method thy = |
533 |
let |
|
16347 | 534 |
val (space, meths) = MethodsData.get thy; |
5884 | 535 |
fun meth src = |
536 |
let |
|
537 |
val ((raw_name, _), pos) = Args.dest_src src; |
|
538 |
val name = NameSpace.intern space raw_name; |
|
539 |
in |
|
5824 | 540 |
(case Symtab.lookup (meths, name) of |
15531 | 541 |
NONE => error ("Unknown proof method: " ^ quote name ^ Position.str_of pos) |
542 |
| SOME ((mth, _), _) => transform_failure (curry METHOD_FAIL (name, pos)) (mth src)) |
|
5824 | 543 |
end; |
544 |
in meth end; |
|
545 |
||
546 |
||
9194 | 547 |
(* add_method(s) *) |
5824 | 548 |
|
549 |
fun add_methods raw_meths thy = |
|
550 |
let |
|
16145 | 551 |
val sg = Theory.sign_of thy; |
552 |
val new_meths = raw_meths |> map (fn (name, f, comment) => |
|
16347 | 553 |
(name, ((f, comment), stamp ()))); |
5824 | 554 |
|
16347 | 555 |
fun add meths = NameSpace.extend_table (Sign.naming_of sg) (meths, new_meths) |
556 |
handle Symtab.DUPS dups => |
|
557 |
error ("Duplicate declaration of method(s) " ^ commas_quote dups); |
|
558 |
in MethodsData.map add thy end; |
|
5824 | 559 |
|
9194 | 560 |
val add_method = add_methods o Library.single; |
561 |
||
5824 | 562 |
(*implicit version*) |
563 |
fun Method name meth cmt = Context.>> (add_methods [(name, meth, cmt)]); |
|
564 |
||
565 |
||
5884 | 566 |
|
567 |
(** method syntax **) |
|
5824 | 568 |
|
5884 | 569 |
(* basic *) |
570 |
||
571 |
fun syntax (scan: (Proof.context * Args.T list -> 'a * (Proof.context * Args.T list))) = |
|
572 |
Args.syntax "method" scan; |
|
5824 | 573 |
|
8351 | 574 |
fun simple_args scan f src ctxt : Proof.method = |
575 |
#2 (syntax (Scan.lift (scan >> (fn x => f x ctxt))) src ctxt); |
|
576 |
||
7555 | 577 |
fun ctxt_args (f: Proof.context -> Proof.method) src ctxt = |
8282 | 578 |
#2 (syntax (Scan.succeed (f ctxt)) src ctxt); |
7555 | 579 |
|
580 |
fun no_args m = ctxt_args (K m); |
|
5884 | 581 |
|
582 |
||
583 |
(* sections *) |
|
5824 | 584 |
|
7268 | 585 |
type modifier = (Proof.context -> Proof.context) * Proof.context attribute; |
586 |
||
587 |
local |
|
588 |
||
8381 | 589 |
fun sect ss = Scan.first (map Scan.lift ss); |
5884 | 590 |
fun thms ss = Scan.unless (sect ss) Attrib.local_thms; |
15570 | 591 |
fun thmss ss = Scan.repeat (thms ss) >> List.concat; |
5884 | 592 |
|
7268 | 593 |
fun apply (f, att) (ctxt, ths) = Thm.applys_attributes ((f ctxt, ths), [att]); |
5824 | 594 |
|
7268 | 595 |
fun section ss = (sect ss -- thmss ss) :-- (fn (m, ths) => Scan.depend (fn ctxt => |
596 |
Scan.succeed (apply m (ctxt, ths)))) >> #2; |
|
5884 | 597 |
|
7601 | 598 |
fun sectioned args ss = args -- Scan.repeat (section ss); |
5884 | 599 |
|
7268 | 600 |
in |
5824 | 601 |
|
5884 | 602 |
fun sectioned_args args ss f src ctxt = |
8282 | 603 |
let val (ctxt', (x, _)) = syntax (sectioned args ss) src ctxt |
5921 | 604 |
in f x ctxt' end; |
5884 | 605 |
|
7601 | 606 |
fun bang_sectioned_args ss f = sectioned_args Args.bang_facts ss f; |
9777 | 607 |
fun bang_sectioned_args' ss scan f = |
608 |
sectioned_args (Args.bang_facts -- scan >> swap) ss (uncurry f); |
|
7601 | 609 |
fun only_sectioned_args ss f = sectioned_args (Scan.succeed ()) ss (fn () => f); |
7268 | 610 |
|
8093 | 611 |
fun thms_ctxt_args f = sectioned_args (thmss []) [] f; |
612 |
fun thms_args f = thms_ctxt_args (K o f); |
|
9706 | 613 |
fun thm_args f = thms_args (fn [thm] => f thm | _ => error "Single theorem expected"); |
5824 | 614 |
|
7268 | 615 |
end; |
616 |
||
5824 | 617 |
|
12347 | 618 |
(* rules syntax *) |
619 |
||
620 |
local |
|
621 |
||
622 |
val introN = "intro"; |
|
623 |
val elimN = "elim"; |
|
624 |
val destN = "dest"; |
|
625 |
val ruleN = "rule"; |
|
626 |
||
627 |
fun modifier name kind kind' att = |
|
15531 | 628 |
Args.$$$ name |-- (kind >> K NONE || kind' |-- Args.nat --| Args.colon >> SOME) |
12347 | 629 |
>> (pair (I: Proof.context -> Proof.context) o att); |
630 |
||
631 |
val rules_modifiers = |
|
12384 | 632 |
[modifier destN Args.bang_colon Args.bang ContextRules.dest_bang_local, |
12350 | 633 |
modifier destN Args.colon (Scan.succeed ()) ContextRules.dest_local, |
634 |
modifier elimN Args.bang_colon Args.bang ContextRules.elim_bang_local, |
|
635 |
modifier elimN Args.colon (Scan.succeed ()) ContextRules.elim_local, |
|
636 |
modifier introN Args.bang_colon Args.bang ContextRules.intro_bang_local, |
|
637 |
modifier introN Args.colon (Scan.succeed ()) ContextRules.intro_local, |
|
638 |
Args.del -- Args.colon >> K (I, ContextRules.rule_del_local)]; |
|
12347 | 639 |
|
640 |
in |
|
641 |
||
642 |
fun rules_args m = bang_sectioned_args' rules_modifiers (Scan.lift (Scan.option Args.nat)) m; |
|
643 |
||
644 |
fun rules_meth n prems ctxt = METHOD (fn facts => |
|
12350 | 645 |
HEADGOAL (insert_tac (prems @ facts) THEN' ObjectLogic.atomize_tac THEN' rules_tac ctxt n)); |
12347 | 646 |
|
647 |
end; |
|
648 |
||
649 |
||
9539 | 650 |
(* tactic syntax *) |
8238 | 651 |
|
10744 | 652 |
fun nat_thms_args f = uncurry f oo |
653 |
(#2 oo syntax (Scan.lift (Scan.optional (Args.parens Args.nat) 0) -- Attrib.local_thmss)); |
|
654 |
||
8238 | 655 |
val insts = |
9539 | 656 |
Scan.optional |
9565
3eb2ea15cc69
res_inst: include non-inst versions with multiple thms;
wenzelm
parents:
9539
diff
changeset
|
657 |
(Args.enum1 "and" (Scan.lift (Args.name -- (Args.$$$ "=" |-- Args.!!! Args.name))) --| |
3eb2ea15cc69
res_inst: include non-inst versions with multiple thms;
wenzelm
parents:
9539
diff
changeset
|
658 |
Scan.lift (Args.$$$ "in")) [] -- Attrib.local_thmss; |
8238 | 659 |
|
12119 | 660 |
fun inst_args f src ctxt = f ctxt (#2 (syntax (Args.goal_spec HEADGOAL -- insts) src ctxt)); |
8537 | 661 |
|
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
662 |
val insts_var = |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
663 |
Scan.optional |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
664 |
(Args.enum1 "and" (Scan.lift (Args.var -- (Args.$$$ "=" |-- Args.!!! Args.name))) --| |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
665 |
Scan.lift (Args.$$$ "in")) [] -- Attrib.local_thmss; |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
666 |
|
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
667 |
fun inst_args_var f src ctxt = f ctxt (#2 (syntax (Args.goal_spec HEADGOAL -- insts_var) src ctxt)); |
8537 | 668 |
|
12119 | 669 |
fun goal_args' args tac src ctxt = #2 (syntax (Args.goal_spec HEADGOAL -- args >> |
14215
ebf291f3b449
Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents:
14174
diff
changeset
|
670 |
(fn (quant, s) => SIMPLE_METHOD' quant (tac s))) src ctxt); |
8537 | 671 |
|
9539 | 672 |
fun goal_args args tac = goal_args' (Scan.lift args) tac; |
8238 | 673 |
|
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
674 |
fun goal_args_ctxt' args tac src ctxt = |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
675 |
#2 (syntax (Args.goal_spec HEADGOAL -- args >> |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
676 |
(fn (quant, s) => SIMPLE_METHOD' quant (tac ctxt s))) src ctxt); |
8238 | 677 |
|
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
678 |
fun goal_args_ctxt args tac = goal_args_ctxt' (Scan.lift args) tac; |
5824 | 679 |
|
14718 | 680 |
|
5824 | 681 |
(** method text **) |
682 |
||
683 |
(* datatype text *) |
|
684 |
||
685 |
datatype text = |
|
686 |
Basic of (Proof.context -> Proof.method) | |
|
15703 | 687 |
Source of src | |
5824 | 688 |
Then of text list | |
689 |
Orelse of text list | |
|
690 |
Try of text | |
|
691 |
Repeat1 of text; |
|
692 |
||
693 |
||
694 |
(* refine *) |
|
695 |
||
8238 | 696 |
fun gen_refine f text state = |
5824 | 697 |
let |
698 |
val thy = Proof.theory_of state; |
|
699 |
||
8238 | 700 |
fun eval (Basic mth) = f mth |
701 |
| eval (Source src) = f (method thy src) |
|
5824 | 702 |
| eval (Then txts) = Seq.EVERY (map eval txts) |
703 |
| eval (Orelse txts) = Seq.FIRST (map eval txts) |
|
704 |
| eval (Try txt) = Seq.TRY (eval txt) |
|
705 |
| eval (Repeat1 txt) = Seq.REPEAT1 (eval txt); |
|
706 |
in eval text state end; |
|
707 |
||
8238 | 708 |
val refine = gen_refine Proof.refine; |
709 |
val refine_end = gen_refine Proof.refine_end; |
|
6404 | 710 |
|
5824 | 711 |
|
6404 | 712 |
(* structured proof steps *) |
5824 | 713 |
|
7506 | 714 |
val default_text = Source (Args.src (("default", []), Position.none)); |
8195 | 715 |
val this_text = Basic (K this); |
9706 | 716 |
val done_text = Basic (K (SIMPLE_METHOD all_tac)); |
7555 | 717 |
|
8966 | 718 |
fun close_text asm = Basic (fn ctxt => METHOD (K |
719 |
(FILTER Thm.no_prems ((if asm then ALLGOALS (assm_tac ctxt) else all_tac) THEN flexflex_tac)))); |
|
720 |
||
15531 | 721 |
fun finish_text asm NONE = close_text asm |
722 |
| finish_text asm (SOME txt) = Then [txt, close_text asm]; |
|
6872 | 723 |
|
5824 | 724 |
fun proof opt_text state = |
725 |
state |
|
726 |
|> Proof.assert_backward |
|
15973 | 727 |
|> refine (if_none opt_text default_text) |
8242 | 728 |
|> Seq.map (Proof.goal_facts (K [])) |
5824 | 729 |
|> Seq.map Proof.enter_forward; |
730 |
||
8966 | 731 |
fun local_qed asm opt_text = Proof.local_qed (refine (finish_text asm opt_text)); |
732 |
fun local_terminal_proof (text, opt_text) pr = |
|
15531 | 733 |
Seq.THEN (proof (SOME text), local_qed true opt_text pr); |
734 |
val local_default_proof = local_terminal_proof (default_text, NONE); |
|
735 |
val local_immediate_proof = local_terminal_proof (this_text, NONE); |
|
736 |
fun local_done_proof pr = Seq.THEN (proof (SOME done_text), local_qed false NONE pr); |
|
5824 | 737 |
|
6872 | 738 |
|
8966 | 739 |
fun global_qeds asm opt_text = Proof.global_qed (refine (finish_text asm opt_text)); |
5824 | 740 |
|
8966 | 741 |
fun global_qed asm opt_text state = |
6872 | 742 |
state |
8966 | 743 |
|> global_qeds asm opt_text |
6872 | 744 |
|> Proof.check_result "Failed to finish proof" state |
745 |
|> Seq.hd; |
|
746 |
||
8966 | 747 |
fun global_term_proof asm (text, opt_text) state = |
6872 | 748 |
state |
15531 | 749 |
|> proof (SOME text) |
6872 | 750 |
|> Proof.check_result "Terminal proof method failed" state |
8966 | 751 |
|> (Seq.flat o Seq.map (global_qeds asm opt_text)) |
6872 | 752 |
|> Proof.check_result "Failed to finish proof (after successful terminal method)" state |
753 |
|> Seq.hd; |
|
754 |
||
8966 | 755 |
val global_terminal_proof = global_term_proof true; |
15531 | 756 |
val global_default_proof = global_terminal_proof (default_text, NONE); |
757 |
val global_immediate_proof = global_terminal_proof (this_text, NONE); |
|
758 |
val global_done_proof = global_term_proof false (done_text, NONE); |
|
5824 | 759 |
|
760 |
||
9539 | 761 |
(* misc tactic emulations *) |
762 |
||
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
763 |
val subgoal_meth = goal_args_ctxt (Scan.repeat1 Args.name) subgoals_tac; |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
764 |
val thin_meth = goal_args_ctxt Args.name thin_tac; |
9539 | 765 |
val rename_meth = goal_args (Scan.repeat1 Args.name) Tactic.rename_params_tac; |
9631 | 766 |
val rotate_meth = goal_args (Scan.optional Args.int 1) Tactic.rotate_tac; |
9539 | 767 |
|
768 |
||
5824 | 769 |
(* pure_methods *) |
770 |
||
771 |
val pure_methods = |
|
772 |
[("fail", no_args fail, "force failure"), |
|
773 |
("succeed", no_args succeed, "succeed"), |
|
9587 | 774 |
("-", no_args insert_facts, "do nothing (insert current facts only)"), |
9539 | 775 |
("insert", thms_args insert, "insert theorems, ignoring facts (improper)"), |
16145 | 776 |
("unfold", thms_args unfold_meth, "unfold definitions"), |
12384 | 777 |
("intro", thms_args intro, "repeatedly apply introduction rules"), |
778 |
("elim", thms_args elim, "repeatedly apply elimination rules"), |
|
16145 | 779 |
("fold", thms_args fold_meth, "fold definitions"), |
12829 | 780 |
("atomize", (atomize o #2) oo syntax (Args.mode "full"), |
11962 | 781 |
"present local premises as object-level statements"), |
12347 | 782 |
("rules", rules_args rules_meth, "apply many rules, including proof search"), |
12384 | 783 |
("rule", thms_ctxt_args some_rule, "apply some intro/elim rule"), |
10744 | 784 |
("erule", nat_thms_args erule, "apply rule in elimination manner (improper)"), |
785 |
("drule", nat_thms_args drule, "apply rule in destruct manner (improper)"), |
|
786 |
("frule", nat_thms_args frule, "apply rule in forward manner (improper)"), |
|
8195 | 787 |
("this", no_args this, "apply current facts as rules"), |
8238 | 788 |
("assumption", ctxt_args assumption, "proof by assumption, preferring facts"), |
14174
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
789 |
("rule_tac", inst_args_var res_inst_meth, "apply rule (dynamic instantiation)"), |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
790 |
("erule_tac", inst_args_var eres_inst_meth, "apply rule in elimination manner (dynamic instantiation)"), |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
791 |
("drule_tac", inst_args_var dres_inst_meth, "apply rule in destruct manner (dynamic instantiation)"), |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
792 |
("frule_tac", inst_args_var forw_inst_meth, "apply rule in forward manner (dynamic instantiation)"), |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
793 |
("cut_tac", inst_args_var cut_inst_meth, "cut rule (dynamic instantiation)"), |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
794 |
("subgoal_tac", subgoal_meth, "insert subgoal (dynamic instantiation)"), |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
795 |
("thin_tac", thin_meth, "remove premise (dynamic instantiation)"), |
f3cafd2929d5
Methods rule_tac etc support static (Isar) contexts.
ballarin
parents:
13650
diff
changeset
|
796 |
("rename_tac", rename_meth, "rename parameters of goal (dynamic instantiation)"), |
9631 | 797 |
("rotate_tac", rotate_meth, "rotate assumptions of goal"), |
8351 | 798 |
("prolog", thms_args prolog, "simple prolog interpreter"), |
799 |
("tactic", simple_args Args.name tactic, "ML tactic as proof method")]; |
|
5824 | 800 |
|
15801 | 801 |
val _ = Context.add_setup [add_methods pure_methods]; |
5824 | 802 |
|
803 |
||
16145 | 804 |
(*final declarations of this structure!*) |
805 |
val unfold = unfold_meth; |
|
806 |
val fold = fold_meth; |
|
807 |
||
5824 | 808 |
end; |
809 |
||
810 |
structure BasicMethod: BASIC_METHOD = Method; |
|
811 |
open BasicMethod; |