src/Pure/Isar/proof.ML
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Fri, 08 Dec 2017 14:39:52 +0100
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implicit quick_and_dirty as for Toplevel.begin_proof/Proof.global_skip_proof;
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(*  Title:      Pure/Isar/proof.ML
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    Author:     Markus Wenzel, TU Muenchen
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The Isar/VM proof language interpreter: maintains a structured flow of
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context elements, goals, refinements, and facts.
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*)
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signature PROOF =
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sig
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  type context = Proof.context
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  type method = Method.method
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  type state
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  val init: context -> state
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  val level: state -> int
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  val assert_bottom: bool -> state -> state
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  val context_of: state -> context
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  val theory_of: state -> theory
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  val map_context: (context -> context) -> state -> state
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  val map_context_result : (context -> 'a * context) -> state -> 'a * state
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  val map_contexts: (context -> context) -> state -> state
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  val propagate_ml_env: state -> state
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  val report_improper: state -> unit
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  val the_facts: state -> thm list
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  val the_fact: state -> thm
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  val set_facts: thm list -> state -> state
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  val reset_facts: state -> state
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  val improper_reset_facts: state -> state
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  val assert_forward: state -> state
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  val assert_chain: state -> state
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  val assert_forward_or_chain: state -> state
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  val assert_backward: state -> state
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  val assert_no_chain: state -> state
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  val enter_forward: state -> state
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  val enter_chain: state -> state
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  val enter_backward: state -> state
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  val has_bottom_goal: state -> bool
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  val using_facts: thm list -> state -> state
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  val pretty_state: state -> Pretty.T list
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  val refine: Method.text -> state -> state Seq.result Seq.seq
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  val refine_end: Method.text -> state -> state Seq.result Seq.seq
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  val refine_singleton: Method.text -> state -> state
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  val refine_insert: thm list -> state -> state
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  val refine_primitive: (Proof.context -> thm -> thm) -> state -> state
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  val raw_goal: state -> {context: context, facts: thm list, goal: thm}
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  val goal: state -> {context: context, facts: thm list, goal: thm}
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  val simple_goal: state -> {context: context, goal: thm}
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  val let_bind: (term list * term) list -> state -> state
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  val let_bind_cmd: (string list * string) list -> state -> state
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  val write: Syntax.mode -> (term * mixfix) list -> state -> state
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  val write_cmd: Syntax.mode -> (string * mixfix) list -> state -> state
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  val fix: (binding * typ option * mixfix) list -> state -> state
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  val fix_cmd: (binding * string option * mixfix) list -> state -> state
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  val assm: Assumption.export -> (binding * typ option * mixfix) list ->
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    (term * term list) list list -> (Thm.binding * (term * term list) list) list ->
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    state -> state
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  val assm_cmd: Assumption.export -> (binding * string option * mixfix) list ->
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    (string * string list) list list -> (Attrib.binding * (string * string list) list) list ->
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    state -> state
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  val assume: (binding * typ option * mixfix) list ->
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    (term * term list) list list -> (Thm.binding * (term * term list) list) list ->
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    state -> state
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  val assume_cmd: (binding * string option * mixfix) list ->
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    (string * string list) list list -> (Attrib.binding * (string * string list) list) list ->
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    state -> state
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  val presume: (binding * typ option * mixfix) list ->
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    (term * term list) list list -> (Thm.binding * (term * term list) list) list ->
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    state -> state
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  val presume_cmd: (binding * string option * mixfix) list ->
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    (string * string list) list list -> (Attrib.binding * (string * string list) list) list ->
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    state -> state
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  val chain: state -> state
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  val chain_facts: thm list -> state -> state
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  val note_thmss: (Thm.binding * (thm list * attribute list) list) list -> state -> state
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  val note_thmss_cmd: (Attrib.binding * (Facts.ref * Token.src list) list) list -> state -> state
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  val from_thmss: ((thm list * attribute list) list) list -> state -> state
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  val from_thmss_cmd: ((Facts.ref * Token.src list) list) list -> state -> state
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  val with_thmss: ((thm list * attribute list) list) list -> state -> state
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  val with_thmss_cmd: ((Facts.ref * Token.src list) list) list -> state -> state
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  val supply: (Thm.binding * (thm list * attribute list) list) list -> state -> state
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  val supply_cmd: (Attrib.binding * (Facts.ref * Token.src list) list) list -> state -> state
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  val using: ((thm list * attribute list) list) list -> state -> state
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  val using_cmd: ((Facts.ref * Token.src list) list) list -> state -> state
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  val unfolding: ((thm list * attribute list) list) list -> state -> state
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  val unfolding_cmd: ((Facts.ref * Token.src list) list) list -> state -> state
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  val case_: Thm.binding * ((string * Position.T) * binding option list) -> state -> state
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  val case_cmd: Attrib.binding * ((string * Position.T) * binding option list) -> state -> state
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  val define: (binding * typ option * mixfix) list ->
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    (binding * typ option * mixfix) list ->
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    (Thm.binding * (term * term list) list) list -> state -> state
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  val define_cmd: (binding * string option * mixfix) list ->
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    (binding * string option * mixfix) list ->
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    (Attrib.binding * (string * string list) list) list -> state -> state
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  val begin_block: state -> state
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  val next_block: state -> state
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  val end_block: state -> state
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  val begin_notepad: context -> state
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  val end_notepad: state -> context
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  val proof: Method.text_range option -> state -> state Seq.result Seq.seq
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  val defer: int -> state -> state
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  val prefer: int -> state -> state
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  val apply: Method.text_range -> state -> state Seq.result Seq.seq
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  val apply_end: Method.text_range -> state -> state Seq.result Seq.seq
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  val local_qed: Method.text_range option * bool -> state -> state
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  val theorem: Method.text option -> (thm list list -> context -> context) ->
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    (term * term list) list list -> context -> state
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  val theorem_cmd: Method.text option -> (thm list list -> context -> context) ->
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    (string * string list) list list -> context -> state
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  val global_qed: Method.text_range option * bool -> state -> context
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  val schematic_goal: state -> bool
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  val is_relevant: state -> bool
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  val local_terminal_proof: Method.text_range * Method.text_range option -> state -> state
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  val local_default_proof: state -> state
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  val local_immediate_proof: state -> state
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  val local_skip_proof: bool -> state -> state
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  val local_done_proof: state -> state
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  val global_terminal_proof: Method.text_range * Method.text_range option -> state -> context
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  val global_default_proof: state -> context
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  val global_immediate_proof: state -> context
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  val global_skip_proof: bool -> state -> context
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  val global_done_proof: state -> context
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  val internal_goal: (context -> (string * string) * (string * thm list) list -> unit) ->
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    Proof_Context.mode -> bool -> string -> Method.text option ->
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    (context * thm list list -> state -> state) ->
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    (binding * typ option * mixfix) list ->
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    (Thm.binding * (term * term list) list) list ->
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    (Thm.binding * (term * term list) list) list -> state -> thm list * state
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  val have: bool -> Method.text option -> (context * thm list list -> state -> state) ->
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    (binding * typ option * mixfix) list ->
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    (Thm.binding * (term * term list) list) list ->
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    (Thm.binding * (term * term list) list) list -> bool -> state -> thm list * state
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  val have_cmd: bool -> Method.text option -> (context * thm list list -> state -> state) ->
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    (binding * string option * mixfix) list ->
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    (Attrib.binding * (string * string list) list) list ->
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    (Attrib.binding * (string * string list) list) list -> bool -> state -> thm list * state
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  val show: bool -> Method.text option -> (context * thm list list -> state -> state) ->
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    (binding * typ option * mixfix) list ->
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    (Thm.binding * (term * term list) list) list ->
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    (Thm.binding * (term * term list) list) list -> bool -> state -> thm list * state
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  val show_cmd: bool -> Method.text option -> (context * thm list list -> state -> state) ->
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    (binding * string option * mixfix) list ->
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    (Attrib.binding * (string * string list) list) list ->
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    (Attrib.binding * (string * string list) list) list -> bool -> state -> thm list * state
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  val future_proof: (state -> ('a * context) future) -> state -> 'a future * state
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  val local_future_terminal_proof: Method.text_range * Method.text_range option -> state -> state
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  val global_future_terminal_proof: Method.text_range * Method.text_range option -> state -> context
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end;
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structure Proof: PROOF =
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struct
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type context = Proof.context;
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type method = Method.method;
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(** proof state **)
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(* datatype state *)
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datatype mode = Forward | Chain | Backward;
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datatype state =
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  State of node Stack.T
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and node =
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  Node of
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   {context: context,
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    facts: (thm list * bool) option,
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    mode: mode,
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    goal: goal option}
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and goal =
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  Goal of
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   {statement: (string * Position.T) * term list list * term,
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      (*goal kind and statement (starting with vars), initial proposition*)
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    using: thm list,                      (*goal facts*)
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    goal: thm,                            (*subgoals ==> statement*)
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    before_qed: Method.text option,
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    after_qed:
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      (context * thm list list -> state -> state) *
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      (context * thm list list -> context -> context)};
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val _ =
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  ML_system_pp (fn _ => fn _ => fn _: state =>
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    Pretty.to_polyml (Pretty.str "<Proof.state>"));
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fun make_goal (statement, using, goal, before_qed, after_qed) =
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  Goal {statement = statement, using = using, goal = goal,
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    before_qed = before_qed, after_qed = after_qed};
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fun make_node (context, facts, mode, goal) =
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  Node {context = context, facts = facts, mode = mode, goal = goal};
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fun map_node f (Node {context, facts, mode, goal}) =
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  make_node (f (context, facts, mode, goal));
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val init_context =
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  Proof_Context.set_stmt true #>
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  Proof_Context.map_naming (K Name_Space.local_naming);
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fun init ctxt =
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  State (Stack.init (make_node (init_context ctxt, NONE, Forward, NONE)));
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fun top (State stack) = Stack.top stack |> (fn Node node => node);
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fun map_top f (State stack) = State (Stack.map_top (map_node f) stack);
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fun map_all f (State stack) = State (Stack.map_all (map_node f) stack);
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(** basic proof state operations **)
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(* block structure *)
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fun open_block (State stack) = State (Stack.push stack);
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fun close_block (State stack) = State (Stack.pop stack)
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  handle List.Empty => error "Unbalanced block parentheses";
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fun level (State stack) = Stack.level stack;
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fun assert_bottom b state =
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  let val b' = level state <= 2 in
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    if b andalso not b' then error "Not at bottom of proof"
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    else if not b andalso b' then error "Already at bottom of proof"
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    else state
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  end;
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(* context *)
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val context_of = #context o top;
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val theory_of = Proof_Context.theory_of o context_of;
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fun map_context f =
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  map_top (fn (ctxt, facts, mode, goal) => (f ctxt, facts, mode, goal));
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fun map_context_result f state =
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  f (context_of state) ||> (fn ctxt => map_context (K ctxt) state);
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fun map_contexts f = map_all (fn (ctxt, facts, mode, goal) => (f ctxt, facts, mode, goal));
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fun propagate_ml_env state = map_contexts
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  (Context.proof_map (ML_Env.inherit (Context.Proof (context_of state)))) state;
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(* facts *)
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fun report_improper state =
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  Context_Position.report (context_of state) (Position.thread_data ()) Markup.improper;
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val get_facts = #facts o top;
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fun the_facts state =
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  (case get_facts state of
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    SOME (facts, proper) => (if proper then () else report_improper state; facts)
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  | NONE => error "No current facts available");
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fun the_fact state =
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  (case the_facts state of
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    [thm] => thm
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  | _ => error "Single theorem expected");
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fun put_facts index facts =
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  map_top (fn (ctxt, _, mode, goal) => (ctxt, facts, mode, goal)) #>
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  map_context (Proof_Context.put_thms index (Auto_Bind.thisN, Option.map #1 facts));
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fun set_facts thms = put_facts false (SOME (thms, true));
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val reset_facts = put_facts false NONE;
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fun improper_reset_facts state =
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  (case get_facts state of
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    SOME (thms, _) => put_facts false (SOME (thms, false)) state
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  | NONE => state);
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fun these_factss more_facts (named_factss, state) =
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  (named_factss, state |> set_facts (maps snd named_factss @ more_facts));
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fun export_facts inner outer =
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  (case get_facts inner of
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    NONE => reset_facts outer
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  | SOME (thms, proper) =>
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      let val thms' = Proof_Context.export (context_of inner) (context_of outer) thms
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      in put_facts true (SOME (thms', proper)) outer end);
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(* mode *)
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val get_mode = #mode o top;
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fun put_mode mode = map_top (fn (ctxt, facts, _, goal) => (ctxt, facts, mode, goal));
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val mode_name = (fn Forward => "state" | Chain => "chain" | Backward => "prove");
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fun assert_mode pred state =
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  let val mode = get_mode state in
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    if pred mode then state
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    else error ("Illegal application of proof command in " ^ quote (mode_name mode) ^ " mode")
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  end;
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val assert_forward = assert_mode (fn mode => mode = Forward);
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val assert_chain = assert_mode (fn mode => mode = Chain);
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val assert_forward_or_chain = assert_mode (fn mode => mode = Forward orelse mode = Chain);
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val assert_backward = assert_mode (fn mode => mode = Backward);
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val assert_no_chain = assert_mode (fn mode => mode <> Chain);
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val enter_forward = put_mode Forward;
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val enter_chain = put_mode Chain;
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val enter_backward = put_mode Backward;
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(* current goal *)
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fun current_goal state =
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  (case top state of
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    {context = ctxt, goal = SOME (Goal goal), ...} => (ctxt, goal)
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  | _ => error "No current goal");
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fun assert_current_goal g state =
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  let val g' = can current_goal state in
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    if g andalso not g' then error "No goal in this block"
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    else if not g andalso g' then error "Goal present in this block"
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    else state
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  end;
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63249
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fun put_goal goal = map_top (fn (ctxt, facts, mode, _) => (ctxt, facts, mode, goal));
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val set_goal = put_goal o SOME;
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val reset_goal = put_goal NONE;
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val before_qed = #before_qed o #2 o current_goal;
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(* bottom goal *)
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fun has_bottom_goal (State stack) =
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  let
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    fun bottom [Node {goal = SOME _, ...}, Node {goal = NONE, ...}] = true
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      | bottom [Node {goal, ...}] = is_some goal
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      | bottom [] = false
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      | bottom (_ :: rest) = bottom rest;
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  in bottom (op :: (Stack.dest stack)) end;
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49ed5eea15d4 'oops' requires proper goal statement -- exclude 'notepad' to avoid disrupting begin/end structure;
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(* nested goal *)
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fun map_goal f (State stack) =
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  (case Stack.dest stack of
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    (Node {context = ctxt, facts, mode, goal = SOME goal}, node :: nodes) =>
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      let
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        val Goal {statement, using, goal, before_qed, after_qed} = goal;
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        val (ctxt', statement', using', goal', before_qed', after_qed') =
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          f (ctxt, statement, using, goal, before_qed, after_qed);
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        val goal' = make_goal (statement', using', goal', before_qed', after_qed');
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      in State (Stack.make (make_node (ctxt', facts, mode, SOME goal')) (node :: nodes)) end
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  | (top_node, node :: nodes) =>
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      let
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        val State stack' = map_goal f (State (Stack.make node nodes));
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        val (node', nodes') = Stack.dest stack';
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      in State (Stack.make top_node (node' :: nodes')) end
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  | _ => State stack);
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fun provide_goal goal =
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  map_goal (fn (ctxt, statement, using, _, before_qed, after_qed) =>
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    (ctxt, statement, using, goal, before_qed, after_qed));
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60550
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fun using_facts using =
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  map_goal (fn (ctxt, statement, _, goal, before_qed, after_qed) =>
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   364
    (ctxt, statement, using, goal, before_qed, after_qed));
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fun find_goal state =
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  (case try current_goal state of
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    SOME ctxt_goal => ctxt_goal
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  | NONE => find_goal (close_block state handle ERROR _ => error "No proof goal"));
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fun get_goal state =
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  let val (ctxt, {using, goal, ...}) = find_goal state
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  in (ctxt, (using, goal)) end;
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ff3c82b47603 Proof states and methods.
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ff3c82b47603 Proof states and methods.
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(** pretty_state **)
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local
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fun pretty_facts _ _ NONE = []
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  | pretty_facts ctxt s (SOME ths) = [Proof_Display.pretty_goal_facts ctxt s ths];
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08ff767a82bf tuned message;
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fun pretty_sep prts [] = prts
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   385
  | pretty_sep [] prts = prts
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   386
  | pretty_sep prts1 prts2 = prts1 @ [Pretty.str ""] @ prts2;
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08ff767a82bf tuned message;
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   388
in
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   389
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   390
fun pretty_state state =
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   391
  let
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   392
    val {context = ctxt, facts, mode, goal = _} = top state;
42717
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   393
    val verbose = Config.get ctxt Proof_Context.verbose;
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   394
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   395
    fun prt_goal (SOME (_, {statement = _, using, goal, before_qed = _, after_qed = _})) =
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   396
          pretty_sep
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   397
            (pretty_facts ctxt "using"
08ff767a82bf tuned message;
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   398
              (if mode <> Backward orelse null using then NONE else SOME using))
08ff767a82bf tuned message;
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parents: 59184
diff changeset
   399
            ([Proof_Display.pretty_goal_header goal] @ Goal_Display.pretty_goals ctxt goal)
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   400
      | prt_goal NONE = [];
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3d82756e1af5 tuned print_state;
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parents: 6798
diff changeset
   401
17359
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   402
    val prt_ctxt =
42717
0bbb56867091 proper configuration options Proof_Context.debug and Proof_Context.verbose;
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parents: 42496
diff changeset
   403
      if verbose orelse mode = Forward then Proof_Context.pretty_context ctxt
42360
da8817d01e7c modernized structure Proof_Context;
wenzelm
parents: 42287
diff changeset
   404
      else if mode = Backward then Proof_Context.pretty_ctxt ctxt
7575
e1e2d07287d8 improved output;
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parents: 7556
diff changeset
   405
      else [];
56912
293cd4dcfebc some position markup to help locating the query context, e.g. from "Info" dockable;
wenzelm
parents: 56898
diff changeset
   406
293cd4dcfebc some position markup to help locating the query context, e.g. from "Info" dockable;
wenzelm
parents: 56898
diff changeset
   407
    val position_markup = Position.markup (Position.thread_data ()) Markup.position;
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543735c6f424 major cleanup of interfaces and implementation;
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parents: 17203
diff changeset
   408
  in
56912
293cd4dcfebc some position markup to help locating the query context, e.g. from "Info" dockable;
wenzelm
parents: 56898
diff changeset
   409
    [Pretty.block
60551
2b8342b0d98c clarified nesting of Isar goal structure;
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parents: 60550
diff changeset
   410
      [Pretty.mark_str (position_markup, "proof"), Pretty.str (" (" ^ mode_name mode ^ ")")]] @
17359
543735c6f424 major cleanup of interfaces and implementation;
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parents: 17203
diff changeset
   411
    (if null prt_ctxt then [] else prt_ctxt @ [Pretty.str ""]) @
42717
0bbb56867091 proper configuration options Proof_Context.debug and Proof_Context.verbose;
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parents: 42496
diff changeset
   412
    (if verbose orelse mode = Forward then
63541
e308f15cc8a7 more markup for unstructured calculation;
wenzelm
parents: 63475
diff changeset
   413
       pretty_sep (pretty_facts ctxt "" (Option.map #1 facts)) (prt_goal (try find_goal state))
e308f15cc8a7 more markup for unstructured calculation;
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parents: 63475
diff changeset
   414
     else if mode = Chain then pretty_facts ctxt "picking" (Option.map #1 facts)
17359
543735c6f424 major cleanup of interfaces and implementation;
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parents: 17203
diff changeset
   415
     else prt_goal (try find_goal state))
543735c6f424 major cleanup of interfaces and implementation;
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parents: 17203
diff changeset
   416
  end;
5820
ff3c82b47603 Proof states and methods.
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parents:
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   417
59185
08ff767a82bf tuned message;
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diff changeset
   418
end;
08ff767a82bf tuned message;
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diff changeset
   419
5820
ff3c82b47603 Proof states and methods.
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parents:
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   420
ff3c82b47603 Proof states and methods.
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parents:
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   421
ff3c82b47603 Proof states and methods.
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   422
(** proof steps **)
ff3c82b47603 Proof states and methods.
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parents:
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   423
17359
543735c6f424 major cleanup of interfaces and implementation;
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   424
(* refine via method *)
5820
ff3c82b47603 Proof states and methods.
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parents:
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   425
8234
36a85a6c4852 refine_end;
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diff changeset
   426
local
36a85a6c4852 refine_end;
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parents: 8206
diff changeset
   427
16146
4cf0af7ca7c9 method_cases: RuleCases.T option;
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parents: 15979
diff changeset
   428
fun goalN i = "goal" ^ string_of_int i;
4cf0af7ca7c9 method_cases: RuleCases.T option;
wenzelm
parents: 15979
diff changeset
   429
fun goals st = map goalN (1 upto Thm.nprems_of st);
4cf0af7ca7c9 method_cases: RuleCases.T option;
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parents: 15979
diff changeset
   430
4cf0af7ca7c9 method_cases: RuleCases.T option;
wenzelm
parents: 15979
diff changeset
   431
fun no_goal_cases st = map (rpair NONE) (goals st);
4cf0af7ca7c9 method_cases: RuleCases.T option;
wenzelm
parents: 15979
diff changeset
   432
59970
e9f73d87d904 proper context for Object_Logic operations;
wenzelm
parents: 59953
diff changeset
   433
fun goal_cases ctxt st =
e9f73d87d904 proper context for Object_Logic operations;
wenzelm
parents: 59953
diff changeset
   434
  Rule_Cases.make_common ctxt (Thm.prop_of st) (map (rpair [] o rpair []) (goals st));
16146
4cf0af7ca7c9 method_cases: RuleCases.T option;
wenzelm
parents: 15979
diff changeset
   435
58007
671c607fb4af just one context for Method.evaluate (in contrast to a989bdaf8121, but in accordance to old global situation);
wenzelm
parents: 58004
diff changeset
   436
fun apply_method text ctxt state =
60611
27255d1fbe1a clarified map_node: operate precisely on goal context and goal info (see also 2b8342b0d98c);
wenzelm
parents: 60595
diff changeset
   437
  find_goal state |> (fn (goal_ctxt, {statement, using, goal, before_qed, after_qed}) =>
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   438
    Method.evaluate text ctxt using (goal_ctxt, goal)
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   439
    |> Seq.map_result (fn (goal_ctxt', goal') =>
60611
27255d1fbe1a clarified map_node: operate precisely on goal context and goal info (see also 2b8342b0d98c);
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parents: 60595
diff changeset
   440
      let
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   441
        val goal_ctxt'' = goal_ctxt'
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   442
          |> Proof_Context.update_cases_legacy (no_goal_cases goal @ goal_cases ctxt goal');
60611
27255d1fbe1a clarified map_node: operate precisely on goal context and goal info (see also 2b8342b0d98c);
wenzelm
parents: 60595
diff changeset
   443
        val state' = state
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   444
          |> map_goal (K (goal_ctxt'', statement, using, goal', before_qed, after_qed));
60611
27255d1fbe1a clarified map_node: operate precisely on goal context and goal info (see also 2b8342b0d98c);
wenzelm
parents: 60595
diff changeset
   445
      in state' end));
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   446
8234
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   447
in
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   448
58007
671c607fb4af just one context for Method.evaluate (in contrast to a989bdaf8121, but in accordance to old global situation);
wenzelm
parents: 58004
diff changeset
   449
fun refine text state = apply_method text (context_of state) state;
671c607fb4af just one context for Method.evaluate (in contrast to a989bdaf8121, but in accordance to old global situation);
wenzelm
parents: 58004
diff changeset
   450
fun refine_end text state = apply_method text (#1 (find_goal state)) state;
58004
wenzelm
parents: 58003
diff changeset
   451
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   452
fun refine_singleton text = refine text #> Seq.the_result "";
18908
fb080097e436 added refine_insert;
wenzelm
parents: 18878
diff changeset
   453
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   454
fun refine_insert ths =
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   455
  refine_singleton (Method.Basic (K (Method.insert ths)));
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   456
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   457
fun refine_primitive r =
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   458
  refine_singleton (Method.Basic (fn ctxt => fn _ => Method.CONTEXT_TACTIC (PRIMITIVE (r ctxt))));
60623
be39fe6c5620 support for subgoal focus command;
wenzelm
parents: 60618
diff changeset
   459
8234
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   460
end;
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   461
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   462
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   463
(* refine via sub-proof *)
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   464
46466
61c7214b4885 tuned signature, according to actual usage of these operations;
wenzelm
parents: 45666
diff changeset
   465
local
61c7214b4885 tuned signature, according to actual usage of these operations;
wenzelm
parents: 45666
diff changeset
   466
54742
7a86358a3c0b proper context for basic Simplifier operations: rewrite_rule, rewrite_goals_rule, rewrite_goals_tac etc.;
wenzelm
parents: 54567
diff changeset
   467
fun finish_tac _ 0 = K all_tac
7a86358a3c0b proper context for basic Simplifier operations: rewrite_rule, rewrite_goals_rule, rewrite_goals_tac etc.;
wenzelm
parents: 54567
diff changeset
   468
  | finish_tac ctxt n =
7a86358a3c0b proper context for basic Simplifier operations: rewrite_rule, rewrite_goals_rule, rewrite_goals_tac etc.;
wenzelm
parents: 54567
diff changeset
   469
      Goal.norm_hhf_tac ctxt THEN'
30557
a28d83e903ce goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents: 30510
diff changeset
   470
      SUBGOAL (fn (goal, i) =>
a28d83e903ce goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents: 30510
diff changeset
   471
        if can Logic.unprotect (Logic.strip_assums_concl goal) then
59498
50b60f501b05 proper context for resolve_tac, eresolve_tac, dresolve_tac, forward_tac etc.;
wenzelm
parents: 59185
diff changeset
   472
          eresolve_tac ctxt [Drule.protectI] i THEN finish_tac ctxt (n - 1) i
54742
7a86358a3c0b proper context for basic Simplifier operations: rewrite_rule, rewrite_goals_rule, rewrite_goals_tac etc.;
wenzelm
parents: 54567
diff changeset
   473
        else finish_tac ctxt (n - 1) (i + 1));
30557
a28d83e903ce goal_tac: finish marked assumptions from left to right -- corresponds better with the strategy of etac, with significant performance gains in some situations;
wenzelm
parents: 30510
diff changeset
   474
54742
7a86358a3c0b proper context for basic Simplifier operations: rewrite_rule, rewrite_goals_rule, rewrite_goals_tac etc.;
wenzelm
parents: 54567
diff changeset
   475
fun goal_tac ctxt rule =
7a86358a3c0b proper context for basic Simplifier operations: rewrite_rule, rewrite_goals_rule, rewrite_goals_tac etc.;
wenzelm
parents: 54567
diff changeset
   476
  Goal.norm_hhf_tac ctxt THEN'
59498
50b60f501b05 proper context for resolve_tac, eresolve_tac, dresolve_tac, forward_tac etc.;
wenzelm
parents: 59185
diff changeset
   477
  resolve_tac ctxt [rule] THEN'
54742
7a86358a3c0b proper context for basic Simplifier operations: rewrite_rule, rewrite_goals_rule, rewrite_goals_tac etc.;
wenzelm
parents: 54567
diff changeset
   478
  finish_tac ctxt (Thm.nprems_of rule);
11816
545aab7410ac simplified exporter interface;
wenzelm
parents: 11793
diff changeset
   479
46466
61c7214b4885 tuned signature, according to actual usage of these operations;
wenzelm
parents: 45666
diff changeset
   480
fun FINDGOAL tac st =
61c7214b4885 tuned signature, according to actual usage of these operations;
wenzelm
parents: 45666
diff changeset
   481
  let fun find i n = if i > n then Seq.fail else Seq.APPEND (tac i, find (i + 1) n)
61c7214b4885 tuned signature, according to actual usage of these operations;
wenzelm
parents: 45666
diff changeset
   482
  in find 1 (Thm.nprems_of st) st end;
61c7214b4885 tuned signature, according to actual usage of these operations;
wenzelm
parents: 45666
diff changeset
   483
60595
804dfdc82835 premises in 'show' are treated like 'assume';
wenzelm
parents: 60573
diff changeset
   484
fun protect_prem i th =
804dfdc82835 premises in 'show' are treated like 'assume';
wenzelm
parents: 60573
diff changeset
   485
  Thm.bicompose NONE {flatten = false, match = false, incremented = true}
804dfdc82835 premises in 'show' are treated like 'assume';
wenzelm
parents: 60573
diff changeset
   486
    (false, Drule.incr_indexes th Drule.protectD, 1) i th
804dfdc82835 premises in 'show' are treated like 'assume';
wenzelm
parents: 60573
diff changeset
   487
  |> Seq.hd;
804dfdc82835 premises in 'show' are treated like 'assume';
wenzelm
parents: 60573
diff changeset
   488
804dfdc82835 premises in 'show' are treated like 'assume';
wenzelm
parents: 60573
diff changeset
   489
fun protect_prems th =
804dfdc82835 premises in 'show' are treated like 'assume';
wenzelm
parents: 60573
diff changeset
   490
  fold_rev protect_prem (1 upto Thm.nprems_of th) th;
804dfdc82835 premises in 'show' are treated like 'assume';
wenzelm
parents: 60573
diff changeset
   491
46466
61c7214b4885 tuned signature, according to actual usage of these operations;
wenzelm
parents: 45666
diff changeset
   492
in
61c7214b4885 tuned signature, according to actual usage of these operations;
wenzelm
parents: 45666
diff changeset
   493
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
   494
fun refine_goals print_rule result_ctxt result state =
19915
b08e26fb247e ProofContext.exports: simultaneous facts;
wenzelm
parents: 19900
diff changeset
   495
  let
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
   496
    val (goal_ctxt, (_, goal)) = get_goal state;
60550
wenzelm
parents: 60469
diff changeset
   497
    fun refine rule st =
wenzelm
parents: 60469
diff changeset
   498
      (print_rule goal_ctxt rule; FINDGOAL (goal_tac goal_ctxt rule) st);
19915
b08e26fb247e ProofContext.exports: simultaneous facts;
wenzelm
parents: 19900
diff changeset
   499
  in
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
   500
    result
60595
804dfdc82835 premises in 'show' are treated like 'assume';
wenzelm
parents: 60573
diff changeset
   501
    |> map (Raw_Simplifier.norm_hhf result_ctxt #> protect_prems)
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
   502
    |> Proof_Context.goal_export result_ctxt goal_ctxt
47068
2027ff3136cc tuned signature;
wenzelm
parents: 47065
diff changeset
   503
    |> (fn rules => Seq.lift provide_goal (EVERY (map refine rules) goal) state)
19915
b08e26fb247e ProofContext.exports: simultaneous facts;
wenzelm
parents: 19900
diff changeset
   504
  end;
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   505
46466
61c7214b4885 tuned signature, according to actual usage of these operations;
wenzelm
parents: 45666
diff changeset
   506
end;
61c7214b4885 tuned signature, according to actual usage of these operations;
wenzelm
parents: 45666
diff changeset
   507
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   508
49846
8fae089f5a0c refined Proof.the_finished_goal with more informative error;
wenzelm
parents: 49748
diff changeset
   509
(* conclude goal *)
8fae089f5a0c refined Proof.the_finished_goal with more informative error;
wenzelm
parents: 49748
diff changeset
   510
28627
63663cfa297c conclude_goal: precise goal context, include all sorts from context into statement, check shyps of result;
wenzelm
parents: 28458
diff changeset
   511
fun conclude_goal ctxt goal propss =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   512
  let
42360
da8817d01e7c modernized structure Proof_Context;
wenzelm
parents: 42287
diff changeset
   513
    val thy = Proof_Context.theory_of ctxt;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   514
54981
a128df2f670e explicit check of background theory;
wenzelm
parents: 54742
diff changeset
   515
    val _ =
65458
cf504b7a7aa7 tuned signature;
wenzelm
parents: 64567
diff changeset
   516
      Context.subthy_id (Thm.theory_id goal, Context.theory_id thy) orelse
59582
0fbed69ff081 tuned signature -- prefer qualified names;
wenzelm
parents: 59573
diff changeset
   517
        error "Bad background theory of goal state";
49860
9a0fe50e4534 further attempts to unify/simplify goal output;
wenzelm
parents: 49859
diff changeset
   518
    val _ = Thm.no_prems goal orelse error (Proof_Display.string_of_goal ctxt goal);
20224
9c40a144ee0e moved basic assumption operations from structure ProofContext to Assumption;
wenzelm
parents: 20208
diff changeset
   519
61268
abe08fb15a12 moved remaining display.ML to more_thm.ML;
wenzelm
parents: 61109
diff changeset
   520
    fun err_lost () = error ("Lost goal structure:\n" ^ Thm.string_of_thm ctxt goal);
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   521
54567
cfe53047dc16 more uniform / rigid checking of Goal.prove_common vs. Proof.conclude_goal -- NB: Goal.prove_common cannot check hyps right now, e.g. due to undeclared Simplifier prems;
wenzelm
parents: 53380
diff changeset
   522
    val th =
64567
7141a3a4dc83 always close derivation, for significantly improved performance without parallel proofs;
wenzelm
parents: 64420
diff changeset
   523
      (Goal.conclude (Thm.close_derivation goal) handle THM _ => err_lost ())
58950
d07464875dd4 optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents: 58892
diff changeset
   524
      |> Drule.flexflex_unique (SOME ctxt)
61508
2c7e2ae6173d clarified modules;
wenzelm
parents: 61268
diff changeset
   525
      |> Thm.check_shyps ctxt
54993
625370769fc0 check_hyps for attribute application (still inactive, due to non-compliant tools);
wenzelm
parents: 54984
diff changeset
   526
      |> Thm.check_hyps (Context.Proof ctxt);
23418
c195f6f13769 balanced conjunctions;
wenzelm
parents: 23360
diff changeset
   527
c195f6f13769 balanced conjunctions;
wenzelm
parents: 23360
diff changeset
   528
    val goal_propss = filter_out null propss;
c195f6f13769 balanced conjunctions;
wenzelm
parents: 23360
diff changeset
   529
    val results =
c195f6f13769 balanced conjunctions;
wenzelm
parents: 23360
diff changeset
   530
      Conjunction.elim_balanced (length goal_propss) th
c195f6f13769 balanced conjunctions;
wenzelm
parents: 23360
diff changeset
   531
      |> map2 Conjunction.elim_balanced (map length goal_propss)
60550
wenzelm
parents: 60469
diff changeset
   532
      handle THM _ => err_lost ();
58950
d07464875dd4 optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents: 58892
diff changeset
   533
    val _ =
d07464875dd4 optional proof context for unify operations, for the sake of proper local options;
wenzelm
parents: 58892
diff changeset
   534
      Unify.matches_list (Context.Proof ctxt) (flat goal_propss) (map Thm.prop_of (flat results))
61268
abe08fb15a12 moved remaining display.ML to more_thm.ML;
wenzelm
parents: 61109
diff changeset
   535
        orelse error ("Proved a different theorem:\n" ^ Thm.string_of_thm ctxt th);
23418
c195f6f13769 balanced conjunctions;
wenzelm
parents: 23360
diff changeset
   536
c195f6f13769 balanced conjunctions;
wenzelm
parents: 23360
diff changeset
   537
    fun recover_result ([] :: pss) thss = [] :: recover_result pss thss
c195f6f13769 balanced conjunctions;
wenzelm
parents: 23360
diff changeset
   538
      | recover_result (_ :: pss) (ths :: thss) = ths :: recover_result pss thss
c195f6f13769 balanced conjunctions;
wenzelm
parents: 23360
diff changeset
   539
      | recover_result [] [] = []
60550
wenzelm
parents: 60469
diff changeset
   540
      | recover_result _ _ = err_lost ();
23418
c195f6f13769 balanced conjunctions;
wenzelm
parents: 23360
diff changeset
   541
  in recover_result propss results end;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   542
49859
52da6a736c32 more informative error messages of initial/terminal proof methods;
wenzelm
parents: 49848
diff changeset
   543
val finished_goal_error = "Failed to finish proof";
52da6a736c32 more informative error messages of initial/terminal proof methods;
wenzelm
parents: 49848
diff changeset
   544
49889
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   545
fun finished_goal pos state =
49859
52da6a736c32 more informative error messages of initial/terminal proof methods;
wenzelm
parents: 49848
diff changeset
   546
  let val (ctxt, (_, goal)) = get_goal state in
52da6a736c32 more informative error messages of initial/terminal proof methods;
wenzelm
parents: 49848
diff changeset
   547
    if Thm.no_prems goal then Seq.Result state
49889
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   548
    else
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   549
      Seq.Error (fn () =>
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   550
        finished_goal_error ^ Position.here pos ^ ":\n" ^
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   551
          Proof_Display.string_of_goal ctxt goal)
49859
52da6a736c32 more informative error messages of initial/terminal proof methods;
wenzelm
parents: 49848
diff changeset
   552
  end;
49846
8fae089f5a0c refined Proof.the_finished_goal with more informative error;
wenzelm
parents: 49748
diff changeset
   553
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   554
33288
bd3f30da7bc1 replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents: 33165
diff changeset
   555
(* goal views -- corresponding to methods *)
bd3f30da7bc1 replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents: 33165
diff changeset
   556
bd3f30da7bc1 replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents: 33165
diff changeset
   557
fun raw_goal state =
63249
wenzelm
parents: 63057
diff changeset
   558
  let val (ctxt, (using, goal)) = get_goal state
wenzelm
parents: 63057
diff changeset
   559
  in {context = ctxt, facts = using, goal = goal} end;
33288
bd3f30da7bc1 replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents: 33165
diff changeset
   560
bd3f30da7bc1 replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents: 33165
diff changeset
   561
val goal = raw_goal o refine_insert [];
bd3f30da7bc1 replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents: 33165
diff changeset
   562
bd3f30da7bc1 replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents: 33165
diff changeset
   563
fun simple_goal state =
bd3f30da7bc1 replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents: 33165
diff changeset
   564
  let
63249
wenzelm
parents: 63057
diff changeset
   565
    val (_, (using, _)) = get_goal state;
wenzelm
parents: 63057
diff changeset
   566
    val (ctxt, (_, goal)) = get_goal (refine_insert using state);
33288
bd3f30da7bc1 replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents: 33165
diff changeset
   567
  in {context = ctxt, goal = goal} end;
bd3f30da7bc1 replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents: 33165
diff changeset
   568
49866
619acbd72664 more proof method text position information;
wenzelm
parents: 49865
diff changeset
   569
fun method_error kind pos state =
619acbd72664 more proof method text position information;
wenzelm
parents: 49865
diff changeset
   570
  Seq.single (Proof_Display.method_error kind pos (raw_goal state));
49861
4e49ac1c8a6c more informative error for stand-alone 'qed';
wenzelm
parents: 49860
diff changeset
   571
33288
bd3f30da7bc1 replaced slightly odd get_goal/flat_goal by explicit goal views that correspond to the usual method categories;
wenzelm
parents: 33165
diff changeset
   572
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   573
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   574
(*** structured proof commands ***)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   575
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   576
(** context elements **)
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   577
36324
7cd5057a5bb8 removed obsolete/unused Proof.match_bind;
wenzelm
parents: 36323
diff changeset
   578
(* let bindings *)
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   579
16813
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   580
local
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   581
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   582
fun gen_bind bind args state =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   583
  state
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   584
  |> assert_forward
36324
7cd5057a5bb8 removed obsolete/unused Proof.match_bind;
wenzelm
parents: 36323
diff changeset
   585
  |> map_context (bind true args #> snd)
47068
2027ff3136cc tuned signature;
wenzelm
parents: 47065
diff changeset
   586
  |> reset_facts;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   587
16813
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   588
in
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   589
60377
234b7da8542e tuned signature;
wenzelm
parents: 60371
diff changeset
   590
val let_bind = gen_bind Proof_Context.match_bind;
234b7da8542e tuned signature;
wenzelm
parents: 60371
diff changeset
   591
val let_bind_cmd = gen_bind Proof_Context.match_bind_cmd;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   592
16813
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   593
end;
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   594
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   595
36505
79c1d2bbe5a9 ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents: 36354
diff changeset
   596
(* concrete syntax *)
79c1d2bbe5a9 ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents: 36354
diff changeset
   597
79c1d2bbe5a9 ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents: 36354
diff changeset
   598
local
79c1d2bbe5a9 ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents: 36354
diff changeset
   599
62771
dd2914250ca7 more accurate mixfix type constraints;
wenzelm
parents: 62663
diff changeset
   600
fun read_arg (c, mx) ctxt =
dd2914250ca7 more accurate mixfix type constraints;
wenzelm
parents: 62663
diff changeset
   601
  (case Proof_Context.read_const {proper = false, strict = false} ctxt c of
dd2914250ca7 more accurate mixfix type constraints;
wenzelm
parents: 62663
diff changeset
   602
    Free (x, _) =>
dd2914250ca7 more accurate mixfix type constraints;
wenzelm
parents: 62663
diff changeset
   603
      let
dd2914250ca7 more accurate mixfix type constraints;
wenzelm
parents: 62663
diff changeset
   604
        val ctxt' =
dd2914250ca7 more accurate mixfix type constraints;
wenzelm
parents: 62663
diff changeset
   605
          ctxt |> is_none (Variable.default_type ctxt x) ?
62959
19c2a58623ed back to static Mixfix.default_constraint without any special tricks (reverting e6443edaebff);
wenzelm
parents: 62819
diff changeset
   606
            Variable.declare_constraints (Free (x, Mixfix.default_constraint mx));
62771
dd2914250ca7 more accurate mixfix type constraints;
wenzelm
parents: 62663
diff changeset
   607
        val t = Free (#1 (Proof_Context.inferred_param x ctxt'));
dd2914250ca7 more accurate mixfix type constraints;
wenzelm
parents: 62663
diff changeset
   608
      in ((t, mx), ctxt') end
dd2914250ca7 more accurate mixfix type constraints;
wenzelm
parents: 62663
diff changeset
   609
  | t => ((t, mx), ctxt));
dd2914250ca7 more accurate mixfix type constraints;
wenzelm
parents: 62663
diff changeset
   610
36507
c966a1aab860 'write': actually observe the proof structure (like 'let' or 'fix');
wenzelm
parents: 36505
diff changeset
   611
fun gen_write prep_arg mode args =
c966a1aab860 'write': actually observe the proof structure (like 'let' or 'fix');
wenzelm
parents: 36505
diff changeset
   612
  assert_forward
62771
dd2914250ca7 more accurate mixfix type constraints;
wenzelm
parents: 62663
diff changeset
   613
  #> map_context (fold_map prep_arg args #-> Proof_Context.notation true mode)
47068
2027ff3136cc tuned signature;
wenzelm
parents: 47065
diff changeset
   614
  #> reset_facts;
36505
79c1d2bbe5a9 ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents: 36354
diff changeset
   615
79c1d2bbe5a9 ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents: 36354
diff changeset
   616
in
79c1d2bbe5a9 ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents: 36354
diff changeset
   617
62771
dd2914250ca7 more accurate mixfix type constraints;
wenzelm
parents: 62663
diff changeset
   618
val write = gen_write pair;
55955
e8f1bf005661 eliminated odd type constraint for read_const (see also 79c1d2bbe5a9);
wenzelm
parents: 55954
diff changeset
   619
val write_cmd = gen_write read_arg;
36505
79c1d2bbe5a9 ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents: 36354
diff changeset
   620
79c1d2bbe5a9 ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents: 36354
diff changeset
   621
end;
79c1d2bbe5a9 ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents: 36354
diff changeset
   622
79c1d2bbe5a9 ProofContext.read_const: allow for type constraint (for fixed variable);
wenzelm
parents: 36354
diff changeset
   623
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   624
(* fix *)
9196
1f6f66fe777a facts: handle multiple lists of arguments;
wenzelm
parents: 8991
diff changeset
   625
12714
61af28328417 have_thmss vs. have_thmss_i;
wenzelm
parents: 12703
diff changeset
   626
local
61af28328417 have_thmss vs. have_thmss_i;
wenzelm
parents: 12703
diff changeset
   627
60469
d1ea37df7358 tuned signature;
wenzelm
parents: 60461
diff changeset
   628
fun gen_fix add_fixes raw_fixes =
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   629
  assert_forward
60469
d1ea37df7358 tuned signature;
wenzelm
parents: 60461
diff changeset
   630
  #> map_context (snd o add_fixes raw_fixes)
47068
2027ff3136cc tuned signature;
wenzelm
parents: 47065
diff changeset
   631
  #> reset_facts;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   632
16813
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   633
in
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   634
60469
d1ea37df7358 tuned signature;
wenzelm
parents: 60461
diff changeset
   635
val fix = gen_fix Proof_Context.add_fixes;
d1ea37df7358 tuned signature;
wenzelm
parents: 60461
diff changeset
   636
val fix_cmd = gen_fix Proof_Context.add_fixes_cmd;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   637
16813
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   638
end;
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   639
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   640
61654
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   641
(* assume *)
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   642
16813
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   643
local
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   644
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
   645
fun gen_assume prep_statement prep_att export raw_fixes raw_prems raw_concls state =
61654
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   646
  let
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   647
    val ctxt = context_of state;
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   648
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   649
    val bindings = map (apsnd (map (prep_att ctxt)) o fst) raw_concls;
63056
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   650
    val ((params, prems_propss, concl_propss, result_binds), _) =
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
   651
      prep_statement raw_fixes raw_prems (map snd raw_concls) ctxt;
63056
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   652
    val propss = (map o map) (Logic.close_prop params (flat prems_propss)) concl_propss;
61654
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   653
  in
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   654
    state
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   655
    |> assert_forward
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   656
    |> map_context_result (fn ctxt =>
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   657
      ctxt
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   658
      |> (fold o fold) Variable.declare_term propss
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   659
      |> fold Variable.maybe_bind_term result_binds
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   660
      |> fold_burrow (Assumption.add_assms export o map (Thm.cterm_of ctxt)) propss
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   661
      |-> (fn premss =>
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   662
        Proof_Context.note_thmss "" (bindings ~~ (map o map) (fn th => ([th], [])) premss)))
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   663
    |> these_factss [] |> #2
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   664
  end;
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   665
16813
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   666
in
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   667
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
   668
val assm = gen_assume Proof_Context.cert_statement (K I);
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
   669
val assm_cmd = gen_assume Proof_Context.read_statement Attrib.attribute_cmd;
61654
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   670
36323
655e2d74de3a modernized naming conventions of main Isar proof elements;
wenzelm
parents: 36322
diff changeset
   671
val assume = assm Assumption.assume_export;
655e2d74de3a modernized naming conventions of main Isar proof elements;
wenzelm
parents: 36322
diff changeset
   672
val assume_cmd = assm_cmd Assumption.assume_export;
61654
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   673
36323
655e2d74de3a modernized naming conventions of main Isar proof elements;
wenzelm
parents: 36322
diff changeset
   674
val presume = assm Assumption.presume_export;
655e2d74de3a modernized naming conventions of main Isar proof elements;
wenzelm
parents: 36322
diff changeset
   675
val presume_cmd = assm_cmd Assumption.presume_export;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   676
16813
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   677
end;
67140ae50e77 removed ad-hoc atp_hook, cal_atp;
wenzelm
parents: 16539
diff changeset
   678
7271
442456b2a8bb assume: multiple args;
wenzelm
parents: 7201
diff changeset
   679
8374
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   680
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   681
(** facts **)
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   682
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   683
(* chain *)
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   684
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   685
val chain =
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   686
  assert_forward
63251
9a20078425b1 clean facts more uniformly;
wenzelm
parents: 63249
diff changeset
   687
  #> (fn state => set_facts (Method.clean_facts (the_facts state)) state)
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   688
  #> enter_chain;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   689
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   690
fun chain_facts facts =
47068
2027ff3136cc tuned signature;
wenzelm
parents: 47065
diff changeset
   691
  set_facts facts
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   692
  #> chain;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   693
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   694
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   695
(* note etc. *)
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   696
63352
4eaf35781b23 tuned signature;
wenzelm
parents: 63344
diff changeset
   697
fun empty_bindings args = map (pair Binding.empty_atts) args;
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   698
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   699
local
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   700
30760
0fffc66b10d7 simplified references to facts, eliminated external note_thmss;
wenzelm
parents: 30757
diff changeset
   701
fun gen_thmss more_facts opt_chain opt_result prep_atts prep_fact args state =
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   702
  state
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   703
  |> assert_forward
47815
43f677b3ae91 clarified signature;
wenzelm
parents: 47431
diff changeset
   704
  |> map_context_result (fn ctxt => ctxt |> Proof_Context.note_thmss ""
43f677b3ae91 clarified signature;
wenzelm
parents: 47431
diff changeset
   705
    (Attrib.map_facts_refs (map (prep_atts ctxt)) (prep_fact ctxt) args))
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   706
  |> these_factss (more_facts state)
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   707
  ||> opt_chain
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   708
  |> opt_result;
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   709
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   710
in
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   711
36323
655e2d74de3a modernized naming conventions of main Isar proof elements;
wenzelm
parents: 36322
diff changeset
   712
val note_thmss = gen_thmss (K []) I #2 (K I) (K I);
47815
43f677b3ae91 clarified signature;
wenzelm
parents: 47431
diff changeset
   713
val note_thmss_cmd = gen_thmss (K []) I #2 Attrib.attribute_cmd Proof_Context.get_fact;
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   714
63352
4eaf35781b23 tuned signature;
wenzelm
parents: 63344
diff changeset
   715
val from_thmss = gen_thmss (K []) chain #2 (K I) (K I) o empty_bindings;
47815
43f677b3ae91 clarified signature;
wenzelm
parents: 47431
diff changeset
   716
val from_thmss_cmd =
63352
4eaf35781b23 tuned signature;
wenzelm
parents: 63344
diff changeset
   717
  gen_thmss (K []) chain #2 Attrib.attribute_cmd Proof_Context.get_fact o empty_bindings;
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   718
63352
4eaf35781b23 tuned signature;
wenzelm
parents: 63344
diff changeset
   719
val with_thmss = gen_thmss the_facts chain #2 (K I) (K I) o empty_bindings;
47815
43f677b3ae91 clarified signature;
wenzelm
parents: 47431
diff changeset
   720
val with_thmss_cmd =
63352
4eaf35781b23 tuned signature;
wenzelm
parents: 63344
diff changeset
   721
  gen_thmss the_facts chain #2 Attrib.attribute_cmd Proof_Context.get_fact o empty_bindings;
30760
0fffc66b10d7 simplified references to facts, eliminated external note_thmss;
wenzelm
parents: 30757
diff changeset
   722
0fffc66b10d7 simplified references to facts, eliminated external note_thmss;
wenzelm
parents: 30757
diff changeset
   723
val local_results = gen_thmss (K []) I I (K I) (K I) o map (apsnd Thm.simple_fact);
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   724
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   725
end;
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   726
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   727
60371
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   728
(* facts during goal refinement *)
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   729
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   730
local
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   731
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   732
fun gen_supply prep_att prep_fact args state =
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   733
  state
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   734
  |> assert_backward
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   735
  |> map_context (fn ctxt => ctxt |> Proof_Context.note_thmss ""
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   736
       (Attrib.map_facts_refs (map (prep_att ctxt)) (prep_fact ctxt) args) |> snd);
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   737
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   738
in
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   739
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   740
val supply = gen_supply (K I) (K I);
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   741
val supply_cmd = gen_supply Attrib.attribute_cmd Proof_Context.get_fact;
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   742
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   743
end;
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   744
8a5cfdda1b98 added Isar command 'supply';
wenzelm
parents: 60369
diff changeset
   745
18548
cb8e8fb9e52d added unfolding(_i);
wenzelm
parents: 18503
diff changeset
   746
(* using/unfolding *)
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   747
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   748
local
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   749
45390
e29521ef9059 tuned signature -- avoid spurious Thm.mixed_attribute;
wenzelm
parents: 45327
diff changeset
   750
fun gen_using f g prep_att prep_fact args state =
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   751
  state
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   752
  |> assert_backward
21442
56e54a2afe69 simplified theorem(_i);
wenzelm
parents: 21362
diff changeset
   753
  |> map_context_result
47815
43f677b3ae91 clarified signature;
wenzelm
parents: 47431
diff changeset
   754
    (fn ctxt => ctxt |> Proof_Context.note_thmss ""
63352
4eaf35781b23 tuned signature;
wenzelm
parents: 63344
diff changeset
   755
      (Attrib.map_facts_refs (map (prep_att ctxt)) (prep_fact ctxt) (empty_bindings args)))
18843
23db974a0575 'unfolding': LocalDefs.unfold;
wenzelm
parents: 18826
diff changeset
   756
  |> (fn (named_facts, state') =>
60611
27255d1fbe1a clarified map_node: operate precisely on goal context and goal info (see also 2b8342b0d98c);
wenzelm
parents: 60595
diff changeset
   757
    state' |> map_goal (fn (goal_ctxt, statement, using, goal, before_qed, after_qed) =>
18843
23db974a0575 'unfolding': LocalDefs.unfold;
wenzelm
parents: 18826
diff changeset
   758
      let
23db974a0575 'unfolding': LocalDefs.unfold;
wenzelm
parents: 18826
diff changeset
   759
        val ctxt = context_of state';
19482
9f11af8f7ef9 tuned basic list operators (flat, maps, map_filter);
wenzelm
parents: 19475
diff changeset
   760
        val ths = maps snd named_facts;
60611
27255d1fbe1a clarified map_node: operate precisely on goal context and goal info (see also 2b8342b0d98c);
wenzelm
parents: 60595
diff changeset
   761
      in (goal_ctxt, statement, f ctxt ths using, g ctxt ths goal, before_qed, after_qed) end));
18548
cb8e8fb9e52d added unfolding(_i);
wenzelm
parents: 18503
diff changeset
   762
24050
248da5f0e735 renamed Drule.is_dummy_thm to Thm.is_dummy;
wenzelm
parents: 24011
diff changeset
   763
fun append_using _ ths using = using @ filter_out Thm.is_dummy ths;
35624
c4e29a0bb8c1 modernized structure Local_Defs;
wenzelm
parents: 34916
diff changeset
   764
fun unfold_using ctxt ths = map (Local_Defs.unfold ctxt ths);
c4e29a0bb8c1 modernized structure Local_Defs;
wenzelm
parents: 34916
diff changeset
   765
val unfold_goals = Local_Defs.unfold_goals;
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   766
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   767
in
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   768
36323
655e2d74de3a modernized naming conventions of main Isar proof elements;
wenzelm
parents: 36322
diff changeset
   769
val using = gen_using append_using (K (K I)) (K I) (K I);
47815
43f677b3ae91 clarified signature;
wenzelm
parents: 47431
diff changeset
   770
val using_cmd = gen_using append_using (K (K I)) Attrib.attribute_cmd Proof_Context.get_fact;
36323
655e2d74de3a modernized naming conventions of main Isar proof elements;
wenzelm
parents: 36322
diff changeset
   771
val unfolding = gen_using unfold_using unfold_goals (K I) (K I);
47815
43f677b3ae91 clarified signature;
wenzelm
parents: 47431
diff changeset
   772
val unfolding_cmd = gen_using unfold_using unfold_goals Attrib.attribute_cmd Proof_Context.get_fact;
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   773
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   774
end;
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   775
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   776
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   777
(* case *)
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   778
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   779
local
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   780
60565
b7ee41f72add clarified 'case' command;
wenzelm
parents: 60555
diff changeset
   781
fun gen_case internal prep_att ((raw_binding, raw_atts), ((name, pos), xs)) state =
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   782
  let
60565
b7ee41f72add clarified 'case' command;
wenzelm
parents: 60555
diff changeset
   783
    val ctxt = context_of state;
b7ee41f72add clarified 'case' command;
wenzelm
parents: 60555
diff changeset
   784
b7ee41f72add clarified 'case' command;
wenzelm
parents: 60555
diff changeset
   785
    val binding = if Binding.is_empty raw_binding then Binding.make (name, pos) else raw_binding;
b7ee41f72add clarified 'case' command;
wenzelm
parents: 60555
diff changeset
   786
    val atts = map (prep_att ctxt) raw_atts;
b7ee41f72add clarified 'case' command;
wenzelm
parents: 60555
diff changeset
   787
19078
97971a84f0c7 added put_thms_internal;
wenzelm
parents: 19000
diff changeset
   788
    val (asms, state') = state |> map_context_result (fn ctxt =>
57486
2131b6633529 check 'case' variable bindings as for 'fix', which means internal names are rejected as usual;
wenzelm
parents: 56933
diff changeset
   789
      ctxt |> Proof_Context.apply_case (Proof_Context.check_case ctxt internal (name, pos) xs));
53380
08f3491c50bf cases: formal binding of 'assumes', with position provided via invoke_case;
wenzelm
parents: 53378
diff changeset
   790
    val assumptions =
63003
bf5fcc65586b clarified signature;
wenzelm
parents: 62992
diff changeset
   791
      asms |> map (fn (a, ts) => ((Binding.qualify_name true binding a, []), map (rpair []) ts));
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   792
  in
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   793
    state'
61654
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
   794
    |> assume [] [] assumptions
60401
16cf5090d3a6 clarified term bindings;
wenzelm
parents: 60388
diff changeset
   795
    |> map_context (fold Variable.unbind_term Auto_Bind.no_facts)
60565
b7ee41f72add clarified 'case' command;
wenzelm
parents: 60555
diff changeset
   796
    |> `the_facts |-> (fn thms => note_thmss [((binding, atts), [(thms, [])])])
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   797
  end;
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   798
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   799
in
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   800
60565
b7ee41f72add clarified 'case' command;
wenzelm
parents: 60555
diff changeset
   801
val case_ = gen_case true (K I);
b7ee41f72add clarified 'case' command;
wenzelm
parents: 60555
diff changeset
   802
val case_cmd = gen_case false Attrib.attribute_cmd;
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   803
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   804
end;
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   805
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   806
63039
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   807
(* define *)
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   808
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   809
local
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   810
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
   811
fun gen_define prep_stmt prep_att raw_decls raw_fixes raw_defs state =
63039
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   812
  let
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   813
    val _ = assert_forward state;
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   814
    val ctxt = context_of state;
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   815
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   816
    (*vars*)
63056
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   817
    val ((vars, propss, _, binds'), vars_ctxt) =
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
   818
      prep_stmt (raw_decls @ raw_fixes) (map snd raw_defs) ctxt;
63056
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   819
    val (decls, fixes) = chop (length raw_decls) vars;
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   820
    val show_term = Syntax.string_of_term vars_ctxt;
63039
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   821
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   822
    (*defs*)
63056
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   823
    fun match_defs (((b, _, mx), (_, Free (x, T))) :: more_decls) ((((y, U), t), _) :: more_defs) =
63352
4eaf35781b23 tuned signature;
wenzelm
parents: 63344
diff changeset
   824
          if x = y then ((b, mx), (Binding.empty_atts, t)) :: match_defs more_decls more_defs
63056
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   825
          else
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   826
            error ("Mismatch of declaration " ^ show_term (Free (x, T)) ^ " wrt. definition " ^
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   827
              show_term (Free (y, U)))
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   828
      | match_defs [] [] = []
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   829
      | match_defs more_decls more_defs =
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   830
          error ("Mismatch of declarations " ^ commas (map (show_term o #2 o #2) more_decls) ^
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   831
            (if null more_decls then "" else " ") ^
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   832
            "wrt. definitions " ^ commas (map (show_term o Free o #1 o #1) more_defs));
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   833
63395
734723445a8c PIDE reports of implicit variable scope;
wenzelm
parents: 63371
diff changeset
   834
    val derived_def = Local_Defs.derived_def ctxt (K  []) {conditional = false};
63056
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   835
    val defs1 = map (derived_def o Logic.close_prop (map #2 fixes) []) (flat propss);
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   836
    val defs2 = match_defs decls defs1;
63344
c9910404cc8a tuned signature;
wenzelm
parents: 63251
diff changeset
   837
    val (defs3, defs_ctxt) = Local_Defs.define defs2 ctxt;
63039
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   838
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   839
    (*notes*)
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   840
    val def_thmss =
63056
9b95ae9ec671 defs are closed, which leads to proper auto_bind_facts;
wenzelm
parents: 63041
diff changeset
   841
      map (fn (((_, prove), ((b, _), _)), (_, (_, th))) => (b, prove defs_ctxt th))
63039
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   842
        (defs1 ~~ defs2 ~~ defs3)
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   843
      |> unflat (map snd raw_defs);
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   844
    val notes =
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   845
      map2 (fn ((a, raw_atts), _) => fn def_thms =>
63041
cb495c4807b3 clarified def binding position: reset for implicit/derived binding, keep for explicit binding;
wenzelm
parents: 63039
diff changeset
   846
        ((Thm.def_binding_optional (Binding.conglomerate (map #1 def_thms)) a,
63039
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   847
          map (prep_att defs_ctxt) raw_atts), map (fn (_, th) => ([th], [])) def_thms))
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   848
        raw_defs def_thmss;
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   849
  in
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   850
    state
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   851
    |> map_context (K defs_ctxt #> fold Variable.bind_term binds')
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   852
    |> note_thmss notes
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   853
  end;
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   854
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   855
in
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   856
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
   857
val define = gen_define Proof_Context.cert_stmt (K I);
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
   858
val define_cmd = gen_define Proof_Context.read_stmt Attrib.attribute_cmd;
63039
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   859
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   860
end;
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   861
1a20fd9cf281 added Isar command 'define';
wenzelm
parents: 63003
diff changeset
   862
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   863
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   864
(** proof structure **)
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   865
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   866
(* blocks *)
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   867
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   868
val begin_block =
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   869
  assert_forward
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   870
  #> open_block
47068
2027ff3136cc tuned signature;
wenzelm
parents: 47065
diff changeset
   871
  #> reset_goal
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   872
  #> open_block;
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   873
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   874
val next_block =
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   875
  assert_forward
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   876
  #> close_block
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   877
  #> open_block
47068
2027ff3136cc tuned signature;
wenzelm
parents: 47065
diff changeset
   878
  #> reset_goal
2027ff3136cc tuned signature;
wenzelm
parents: 47065
diff changeset
   879
  #> reset_facts;
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   880
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   881
fun end_block state =
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   882
  state
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   883
  |> assert_forward
40960
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   884
  |> assert_bottom false
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   885
  |> close_block
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   886
  |> assert_current_goal false
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   887
  |> close_block
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   888
  |> export_facts state;
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   889
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   890
40960
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   891
(* global notepad *)
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   892
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   893
val begin_notepad =
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   894
  init
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   895
  #> open_block
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   896
  #> map_context (Variable.set_body true)
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   897
  #> open_block;
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   898
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   899
val end_notepad =
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   900
  assert_forward
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   901
  #> assert_bottom true
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   902
  #> close_block
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   903
  #> assert_current_goal false
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   904
  #> close_block
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   905
  #> context_of;
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   906
9e54eb514a46 formal notepad without any result;
wenzelm
parents: 40642
diff changeset
   907
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   908
(* sub-proofs *)
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   909
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   910
fun proof opt_text =
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   911
  Seq.APPEND
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   912
    (assert_backward
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   913
      #> refine (the_default Method.standard_text (Method.text opt_text))
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   914
      #> Seq.map_result
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   915
        (using_facts []
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   916
          #> enter_forward
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   917
          #> open_block
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   918
          #> reset_goal),
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   919
     method_error "initial" (Method.position opt_text));
49863
b5fb6e7f8d81 more informative errors for 'proof' and 'apply' steps;
wenzelm
parents: 49861
diff changeset
   920
49889
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   921
fun end_proof bot (prev_pos, (opt_text, immed)) =
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   922
  let
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   923
    val (finish_text, terminal_pos, finished_pos) =
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   924
      (case opt_text of
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   925
        NONE => (Method.finish_text (NONE, immed), Position.none, prev_pos)
55709
4e5a83a46ded clarified Token.range_of in accordance to Symbol_Pos.range;
wenzelm
parents: 54993
diff changeset
   926
      | SOME (text, (pos, end_pos)) => (Method.finish_text (SOME text, immed), pos, end_pos));
49889
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   927
  in
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   928
    Seq.APPEND (fn state =>
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   929
      state
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   930
      |> assert_forward
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   931
      |> assert_bottom bot
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   932
      |> close_block
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   933
      |> assert_current_goal true
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   934
      |> using_facts []
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   935
      |> `before_qed |-> (refine o the_default Method.succeed_text)
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   936
      |> Seq.maps_results (refine finish_text),
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   937
      method_error "terminal" terminal_pos)
49889
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   938
    #> Seq.maps_results (Seq.single o finished_goal finished_pos)
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
   939
  end;
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   940
29383
223f18cfbb32 qed/after_qed: singleton result;
wenzelm
parents: 29381
diff changeset
   941
fun check_result msg sq =
223f18cfbb32 qed/after_qed: singleton result;
wenzelm
parents: 29381
diff changeset
   942
  (case Seq.pull sq of
223f18cfbb32 qed/after_qed: singleton result;
wenzelm
parents: 29381
diff changeset
   943
    NONE => error msg
223f18cfbb32 qed/after_qed: singleton result;
wenzelm
parents: 29381
diff changeset
   944
  | SOME (s, _) => s);
223f18cfbb32 qed/after_qed: singleton result;
wenzelm
parents: 29381
diff changeset
   945
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   946
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   947
(* unstructured refinement *)
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   948
49865
eeaf1ec7eac2 clarified defer/prefer: more specific errors;
wenzelm
parents: 49863
diff changeset
   949
fun defer i =
eeaf1ec7eac2 clarified defer/prefer: more specific errors;
wenzelm
parents: 49863
diff changeset
   950
  assert_no_chain #>
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   951
  refine_singleton (Method.Basic (fn _ => METHOD (fn _ => ASSERT_SUBGOAL defer_tac i)));
49865
eeaf1ec7eac2 clarified defer/prefer: more specific errors;
wenzelm
parents: 49863
diff changeset
   952
eeaf1ec7eac2 clarified defer/prefer: more specific errors;
wenzelm
parents: 49863
diff changeset
   953
fun prefer i =
eeaf1ec7eac2 clarified defer/prefer: more specific errors;
wenzelm
parents: 49863
diff changeset
   954
  assert_no_chain #>
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   955
  refine_singleton (Method.Basic (fn _ => METHOD (fn _ => ASSERT_SUBGOAL prefer_tac i)));
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   956
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   957
fun apply (text, (pos, _)) =
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   958
  Seq.APPEND (assert_backward #> refine text #> Seq.map_result (using_facts []),
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   959
    method_error "" pos);
49866
619acbd72664 more proof method text position information;
wenzelm
parents: 49865
diff changeset
   960
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   961
fun apply_end (text, (pos, _)) =
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   962
  Seq.APPEND (assert_forward #> refine_end text, method_error "" pos);
49863
b5fb6e7f8d81 more informative errors for 'proof' and 'apply' steps;
wenzelm
parents: 49861
diff changeset
   963
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   964
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   965
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   966
(** goals **)
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
   967
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   968
(* generic goals *)
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   969
19774
5fe7731d0836 allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents: 19585
diff changeset
   970
local
5fe7731d0836 allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents: 19585
diff changeset
   971
36322
81cba3921ba5 goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents: 35624
diff changeset
   972
val is_var =
81cba3921ba5 goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents: 35624
diff changeset
   973
  can (dest_TVar o Logic.dest_type o Logic.dest_term) orf
81cba3921ba5 goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents: 35624
diff changeset
   974
  can (dest_Var o Logic.dest_term);
81cba3921ba5 goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents: 35624
diff changeset
   975
81cba3921ba5 goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents: 35624
diff changeset
   976
fun implicit_vars props =
19846
3a2d33a5a7b6 fixes: include mixfix syntax;
wenzelm
parents: 19774
diff changeset
   977
  let
36354
bbd742107f56 eliminanated some unreferenced identifiers;
wenzelm
parents: 36324
diff changeset
   978
    val (var_props, _) = take_prefix is_var props;
36322
81cba3921ba5 goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents: 35624
diff changeset
   979
    val explicit_vars = fold Term.add_vars var_props [];
81cba3921ba5 goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents: 35624
diff changeset
   980
    val vars = filter_out (member (op =) explicit_vars) (fold Term.add_vars props []);
81cba3921ba5 goals: simplified handling of implicit variables -- removed obsolete warning;
wenzelm
parents: 35624
diff changeset
   981
  in map (Logic.mk_term o Var) vars end;
19774
5fe7731d0836 allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents: 19585
diff changeset
   982
5fe7731d0836 allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents: 19585
diff changeset
   983
fun refine_terms n =
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   984
  refine_singleton (Method.Basic (fn ctxt => Method.CONTEXT_TACTIC o
58002
0ed1e999a0fb simplified type Proof.method;
wenzelm
parents: 57486
diff changeset
   985
    K (HEADGOAL (PRECISE_CONJUNCTS n
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
   986
      (HEADGOAL (CONJUNCTS (ALLGOALS (resolve_tac ctxt [Drule.termI]))))))));
19774
5fe7731d0836 allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents: 19585
diff changeset
   987
5fe7731d0836 allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents: 19585
diff changeset
   988
in
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   989
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
   990
fun generic_goal kind before_qed after_qed goal_ctxt goal_propss result_binds state =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   991
  let
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   992
    val chaining = can assert_chain state;
25958
bcedde463850 statement: keep explicit position;
wenzelm
parents: 25227
diff changeset
   993
    val pos = Position.thread_data ();
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
   994
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
   995
    val goal_props = flat goal_propss;
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
   996
    val vars = implicit_vars goal_props;
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
   997
    val propss' = vars :: goal_propss;
23418
c195f6f13769 balanced conjunctions;
wenzelm
parents: 23360
diff changeset
   998
    val goal_propss = filter_out null propss';
60551
2b8342b0d98c clarified nesting of Isar goal structure;
wenzelm
parents: 60550
diff changeset
   999
29346
fe6843aa4f5f more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents: 29090
diff changeset
  1000
    val goal =
59616
eb59c6968219 tuned -- more explicit use of context;
wenzelm
parents: 59582
diff changeset
  1001
      Logic.mk_conjunction_balanced (map Logic.mk_conjunction_balanced goal_propss)
60406
12cc54fac9b0 allow for_fixes for 'have', 'show' etc.;
wenzelm
parents: 60403
diff changeset
  1002
      |> Thm.cterm_of goal_ctxt
61508
2c7e2ae6173d clarified modules;
wenzelm
parents: 61268
diff changeset
  1003
      |> Thm.weaken_sorts' goal_ctxt;
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1004
    val statement = ((kind, pos), propss', Thm.term_of goal);
60402
wenzelm
parents: 60401
diff changeset
  1005
60383
70b0362c784d tuned signature;
wenzelm
parents: 60381
diff changeset
  1006
    val after_qed' = after_qed |>> (fn after_local => fn results =>
60408
1fd46ced2fa8 more uniform treatment of auto bindings vs. explicit user bindings;
wenzelm
parents: 60407
diff changeset
  1007
      map_context (fold Variable.maybe_bind_term result_binds) #> after_local results);
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
  1008
  in
60551
2b8342b0d98c clarified nesting of Isar goal structure;
wenzelm
parents: 60550
diff changeset
  1009
    state
2b8342b0d98c clarified nesting of Isar goal structure;
wenzelm
parents: 60550
diff changeset
  1010
    |> assert_forward_or_chain
2b8342b0d98c clarified nesting of Isar goal structure;
wenzelm
parents: 60550
diff changeset
  1011
    |> enter_forward
2b8342b0d98c clarified nesting of Isar goal structure;
wenzelm
parents: 60550
diff changeset
  1012
    |> open_block
2b8342b0d98c clarified nesting of Isar goal structure;
wenzelm
parents: 60550
diff changeset
  1013
    |> enter_backward
2b8342b0d98c clarified nesting of Isar goal structure;
wenzelm
parents: 60550
diff changeset
  1014
    |> map_context
2b8342b0d98c clarified nesting of Isar goal structure;
wenzelm
parents: 60550
diff changeset
  1015
      (K goal_ctxt
2b8342b0d98c clarified nesting of Isar goal structure;
wenzelm
parents: 60550
diff changeset
  1016
        #> init_context
2b8342b0d98c clarified nesting of Isar goal structure;
wenzelm
parents: 60550
diff changeset
  1017
        #> Variable.set_body true
2b8342b0d98c clarified nesting of Isar goal structure;
wenzelm
parents: 60550
diff changeset
  1018
        #> Proof_Context.auto_bind_goal goal_props)
58892
20aa19ecf2cc eliminated obsolete Proof.goal_message -- print outcome more directly;
wenzelm
parents: 58837
diff changeset
  1019
    |> set_goal (make_goal (statement, [], Goal.init goal, before_qed, after_qed'))
21565
bd28361f4c5b simplified '?' operator;
wenzelm
parents: 21466
diff changeset
  1020
    |> chaining ? (`the_facts #-> using_facts)
47068
2027ff3136cc tuned signature;
wenzelm
parents: 47065
diff changeset
  1021
    |> reset_facts
23418
c195f6f13769 balanced conjunctions;
wenzelm
parents: 23360
diff changeset
  1022
    |> not (null vars) ? refine_terms (length goal_propss)
61841
4d3527b94f2a more general types Proof.method / context_tactic;
wenzelm
parents: 61659
diff changeset
  1023
    |> null goal_props ? refine_singleton (Method.Basic Method.assumption)
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
  1024
  end;
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
  1025
60408
1fd46ced2fa8 more uniform treatment of auto bindings vs. explicit user bindings;
wenzelm
parents: 60407
diff changeset
  1026
fun generic_qed state =
60409
240ad53041c9 prevent export of future result -- avoid interference with goal fixes;
wenzelm
parents: 60408
diff changeset
  1027
  let
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1028
    val (goal_ctxt, {statement = (_, propss, _), goal, after_qed, ...}) =
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1029
      current_goal state;
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1030
    val results = tl (conclude_goal goal_ctxt goal propss);
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1031
  in state |> close_block |> pair (after_qed, (goal_ctxt, results)) end;
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1032
19774
5fe7731d0836 allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents: 19585
diff changeset
  1033
end;
5fe7731d0836 allow non-trivial schematic goals (via embedded term vars);
wenzelm
parents: 19585
diff changeset
  1034
9469
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
  1035
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1036
(* local goals *)
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1037
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
  1038
fun local_goal print_results prep_statement prep_att strict_asm
60414
f25f2f2ba48c support for "if prems" in local goal statements;
wenzelm
parents: 60411
diff changeset
  1039
    kind before_qed after_qed raw_fixes raw_assumes raw_shows state =
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1040
  let
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1041
    val ctxt = context_of state;
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1042
60555
51a6997b1384 support 'when' statement, which corresponds to 'presume';
wenzelm
parents: 60551
diff changeset
  1043
    val add_assumes =
51a6997b1384 support 'when' statement, which corresponds to 'presume';
wenzelm
parents: 60551
diff changeset
  1044
      Assumption.add_assms
51a6997b1384 support 'when' statement, which corresponds to 'presume';
wenzelm
parents: 60551
diff changeset
  1045
        (if strict_asm then Assumption.assume_export else Assumption.presume_export);
61654
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1046
61659
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1047
    (*params*)
61654
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1048
    val ((params, assumes_propss, shows_propss, result_binds), params_ctxt) = ctxt
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
  1049
      |> prep_statement raw_fixes (map snd raw_assumes) (map snd raw_shows);
60406
12cc54fac9b0 allow for_fixes for 'have', 'show' etc.;
wenzelm
parents: 60403
diff changeset
  1050
61659
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1051
    (*prems*)
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1052
    val (assumes_bindings, shows_bindings) =
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1053
      apply2 (map (apsnd (map (prep_att ctxt)) o fst)) (raw_assumes, raw_shows);
61654
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1054
    val (that_fact, goal_ctxt) = params_ctxt
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1055
      |> fold_burrow add_assumes ((map o map) (Thm.cterm_of params_ctxt) assumes_propss)
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1056
      |> (fn (premss, ctxt') =>
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1057
          let
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1058
            val prems = Assumption.local_prems_of ctxt' ctxt;
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1059
            val ctxt'' =
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1060
              ctxt'
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1061
              |> not (null assumes_propss) ?
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1062
                (snd o Proof_Context.note_thmss ""
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1063
                  [((Binding.name Auto_Bind.thatN, []), [(prems, [])])])
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1064
              |> (snd o Proof_Context.note_thmss ""
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1065
                  (assumes_bindings ~~ map (map (fn th => ([th], []))) premss))
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1066
          in (prems, ctxt'') end);
60402
wenzelm
parents: 60401
diff changeset
  1067
61659
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1068
    (*result*)
63371
3c7c9f726cc3 clarified fact position, notably for reports on literal facts;
wenzelm
parents: 63370
diff changeset
  1069
    val results_bindings = map (apfst Binding.default_pos) shows_bindings;
61659
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1070
    fun after_qed' (result_ctxt, results) state' =
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1071
      let
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1072
        val ctxt' = context_of state';
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1073
        val export0 =
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1074
          Assumption.export false result_ctxt ctxt' #>
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1075
          fold_rev (fn (x, v) => Thm.forall_intr_name (x, Thm.cterm_of params_ctxt v)) params #>
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1076
          Raw_Simplifier.norm_hhf_protect ctxt';
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1077
        val export = map export0 #> Variable.export result_ctxt ctxt';
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1078
      in
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1079
        state'
63371
3c7c9f726cc3 clarified fact position, notably for reports on literal facts;
wenzelm
parents: 63370
diff changeset
  1080
        |> local_results (results_bindings ~~ burrow export results)
61659
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1081
        |-> (fn res => tap (fn st => print_results (context_of st) ((kind, ""), res) : unit))
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1082
        |> after_qed (result_ctxt, results)
ffee6aea0ff2 preserve names of for-fixes for faithfully;
wenzelm
parents: 61655
diff changeset
  1083
      end;
60461
22995ec9fefd tuned signature;
wenzelm
parents: 60449
diff changeset
  1084
  in
22995ec9fefd tuned signature;
wenzelm
parents: 60449
diff changeset
  1085
    state
61654
4a28eec739e9 support for structure statements in 'assume', 'presume';
wenzelm
parents: 61508
diff changeset
  1086
    |> generic_goal kind before_qed (after_qed', K I) goal_ctxt shows_propss result_binds
60461
22995ec9fefd tuned signature;
wenzelm
parents: 60449
diff changeset
  1087
    |> pair that_fact
22995ec9fefd tuned signature;
wenzelm
parents: 60449
diff changeset
  1088
  end;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
  1089
49866
619acbd72664 more proof method text position information;
wenzelm
parents: 49865
diff changeset
  1090
fun local_qeds arg =
619acbd72664 more proof method text position information;
wenzelm
parents: 49865
diff changeset
  1091
  end_proof false arg
60408
1fd46ced2fa8 more uniform treatment of auto bindings vs. explicit user bindings;
wenzelm
parents: 60407
diff changeset
  1092
  #> Seq.map_result (generic_qed #-> (fn ((after_qed, _), results) => after_qed results));
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
  1093
49889
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
  1094
fun local_qed arg =
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
  1095
  local_qeds (Position.none, arg) #> Seq.the_result finished_goal_error;
29383
223f18cfbb32 qed/after_qed: singleton result;
wenzelm
parents: 29381
diff changeset
  1096
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
  1097
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1098
(* global goals *)
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1099
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1100
fun global_goal prep_propp before_qed after_qed propp ctxt =
60402
wenzelm
parents: 60401
diff changeset
  1101
  let
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1102
    val (propss, binds) =
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1103
      prep_propp (Proof_Context.set_mode Proof_Context.mode_schematic ctxt) propp;
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1104
    val goal_ctxt = ctxt
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1105
      |> (fold o fold) Variable.auto_fixes propss
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1106
      |> fold Variable.bind_term binds;
61109
1c98bfc5d743 proper restore_naming after global qed, which is important to make Name_Space.transform_naming work properly, e.g. for "private typedef";
wenzelm
parents: 60948
diff changeset
  1107
    fun after_qed' (result_ctxt, results) ctxt' = ctxt'
1c98bfc5d743 proper restore_naming after global qed, which is important to make Name_Space.transform_naming work properly, e.g. for "private typedef";
wenzelm
parents: 60948
diff changeset
  1108
      |> Proof_Context.restore_naming ctxt
1c98bfc5d743 proper restore_naming after global qed, which is important to make Name_Space.transform_naming work properly, e.g. for "private typedef";
wenzelm
parents: 60948
diff changeset
  1109
      |> after_qed (burrow (Proof_Context.export result_ctxt ctxt') results);
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1110
  in
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1111
    ctxt
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1112
    |> init
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1113
    |> generic_goal "" before_qed (K I, after_qed') goal_ctxt propss []
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1114
  end;
45327
4a027cc86f1a tuned signature -- canonical argument order;
wenzelm
parents: 44045
diff changeset
  1115
60388
0c9d2a4f589d clarified Proof_Context.cert_propp/read_propp;
wenzelm
parents: 60386
diff changeset
  1116
val theorem = global_goal Proof_Context.cert_propp;
0c9d2a4f589d clarified Proof_Context.cert_propp/read_propp;
wenzelm
parents: 60386
diff changeset
  1117
val theorem_cmd = global_goal Proof_Context.read_propp;
12065
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
  1118
49866
619acbd72664 more proof method text position information;
wenzelm
parents: 49865
diff changeset
  1119
fun global_qeds arg =
619acbd72664 more proof method text position information;
wenzelm
parents: 49865
diff changeset
  1120
  end_proof true arg
60408
1fd46ced2fa8 more uniform treatment of auto bindings vs. explicit user bindings;
wenzelm
parents: 60407
diff changeset
  1121
  #> Seq.map_result (generic_qed #> (fn (((_, after_qed), results), state) =>
49859
52da6a736c32 more informative error messages of initial/terminal proof methods;
wenzelm
parents: 49848
diff changeset
  1122
    after_qed results (context_of state)));
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
  1123
49889
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
  1124
fun global_qed arg =
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
  1125
  global_qeds (Position.none, arg) #> Seq.the_result finished_goal_error;
12959
bf48fd86a732 clarified localized multi statements;
wenzelm
parents: 12930
diff changeset
  1126
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
  1127
67157
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1128
(* relevant proof states *)
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1129
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1130
fun schematic_goal state =
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1131
  let val (_, {statement = (_, _, prop), ...}) = find_goal state
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1132
  in Goal.is_schematic prop end;
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1133
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1134
fun is_relevant state =
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1135
  (case try find_goal state of
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1136
    NONE => true
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1137
  | SOME (_, {statement = (_, _, prop), goal, ...}) =>
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1138
      Goal.is_schematic prop orelse not (Logic.protect prop aconv Thm.concl_of goal));
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1139
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1140
49907
c4bd02e32d35 avoid spurious "bad" markup for show/test_proof;
wenzelm
parents: 49890
diff changeset
  1141
(* terminal proof steps *)
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
  1142
49890
89eff795f757 skipped proofs appear as "bad" without counting as error;
wenzelm
parents: 49889
diff changeset
  1143
local
89eff795f757 skipped proofs appear as "bad" without counting as error;
wenzelm
parents: 49889
diff changeset
  1144
64420
2efc128370fa avoid multiple PIDE markup due to (potentially infinite) backtracking;
wenzelm
parents: 63541
diff changeset
  1145
fun terminal_proof qeds initial terminal state =
2efc128370fa avoid multiple PIDE markup due to (potentially infinite) backtracking;
wenzelm
parents: 63541
diff changeset
  1146
  let
2efc128370fa avoid multiple PIDE markup due to (potentially infinite) backtracking;
wenzelm
parents: 63541
diff changeset
  1147
    val ctxt = context_of state;
2efc128370fa avoid multiple PIDE markup due to (potentially infinite) backtracking;
wenzelm
parents: 63541
diff changeset
  1148
    val check_closure = Method.check_text ctxt #> Method.map_source (Method.method_closure ctxt);
2efc128370fa avoid multiple PIDE markup due to (potentially infinite) backtracking;
wenzelm
parents: 63541
diff changeset
  1149
    val initial' = apfst check_closure initial;
2efc128370fa avoid multiple PIDE markup due to (potentially infinite) backtracking;
wenzelm
parents: 63541
diff changeset
  1150
    val terminal' = (apfst o Option.map o apfst) check_closure terminal;
2efc128370fa avoid multiple PIDE markup due to (potentially infinite) backtracking;
wenzelm
parents: 63541
diff changeset
  1151
  in
67157
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1152
    if Goal.skip_proofs_enabled () andalso not (is_relevant state) then
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1153
      state
67161
b762ed417ed9 implicit quick_and_dirty as for Toplevel.begin_proof/Proof.global_skip_proof;
wenzelm
parents: 67157
diff changeset
  1154
      |> proof (SOME (Method.sorry_text true, #2 initial'))
67157
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1155
      |> Seq.maps_results (qeds (#2 (#2 initial), (NONE, #2 terminal)))
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1156
    else
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1157
      state
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1158
      |> proof (SOME initial')
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1159
      |> Seq.maps_results (qeds (#2 (#2 initial), terminal'))
d0657c8b7616 clarified document preparation vs. skip_proofs;
wenzelm
parents: 67119
diff changeset
  1160
  end |> Seq.the_result "";
49848
f222a054342e more informative error of initial/terminal proof steps;
wenzelm
parents: 49847
diff changeset
  1161
49890
89eff795f757 skipped proofs appear as "bad" without counting as error;
wenzelm
parents: 49889
diff changeset
  1162
in
89eff795f757 skipped proofs appear as "bad" without counting as error;
wenzelm
parents: 49889
diff changeset
  1163
29383
223f18cfbb32 qed/after_qed: singleton result;
wenzelm
parents: 29381
diff changeset
  1164
fun local_terminal_proof (text, opt_text) = terminal_proof local_qeds text (opt_text, true);
60618
4c79543cc376 renamed "default" to "standard", to make semantically clear what it is;
wenzelm
parents: 60611
diff changeset
  1165
val local_default_proof = local_terminal_proof ((Method.standard_text, Position.no_range), NONE);
49889
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
  1166
val local_immediate_proof = local_terminal_proof ((Method.this_text, Position.no_range), NONE);
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
  1167
val local_done_proof = terminal_proof local_qeds (Method.done_text, Position.no_range) (NONE, false);
17112
736f4b7841a8 moved after method.ML;
wenzelm
parents: 17034
diff changeset
  1168
29383
223f18cfbb32 qed/after_qed: singleton result;
wenzelm
parents: 29381
diff changeset
  1169
fun global_terminal_proof (text, opt_text) = terminal_proof global_qeds text (opt_text, true);
60618
4c79543cc376 renamed "default" to "standard", to make semantically clear what it is;
wenzelm
parents: 60611
diff changeset
  1170
val global_default_proof = global_terminal_proof ((Method.standard_text, Position.no_range), NONE);
49889
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
  1171
val global_immediate_proof = global_terminal_proof ((Method.this_text, Position.no_range), NONE);
00ea087e83d8 more method position information, notably finished_pos after end of previous text;
wenzelm
parents: 49867
diff changeset
  1172
val global_done_proof = terminal_proof global_qeds (Method.done_text, Position.no_range) (NONE, false);
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
  1173
49890
89eff795f757 skipped proofs appear as "bad" without counting as error;
wenzelm
parents: 49889
diff changeset
  1174
end;
89eff795f757 skipped proofs appear as "bad" without counting as error;
wenzelm
parents: 49889
diff changeset
  1175
6896
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
  1176
49907
c4bd02e32d35 avoid spurious "bad" markup for show/test_proof;
wenzelm
parents: 49890
diff changeset
  1177
(* skip proofs *)
c4bd02e32d35 avoid spurious "bad" markup for show/test_proof;
wenzelm
parents: 49890
diff changeset
  1178
c4bd02e32d35 avoid spurious "bad" markup for show/test_proof;
wenzelm
parents: 49890
diff changeset
  1179
fun local_skip_proof int state =
c4bd02e32d35 avoid spurious "bad" markup for show/test_proof;
wenzelm
parents: 49890
diff changeset
  1180
  local_terminal_proof ((Method.sorry_text int, Position.no_range), NONE) state before
51551
88d1d19fb74f tuned signature and module arrangement;
wenzelm
parents: 51383
diff changeset
  1181
  Skip_Proof.report (context_of state);
49907
c4bd02e32d35 avoid spurious "bad" markup for show/test_proof;
wenzelm
parents: 49890
diff changeset
  1182
c4bd02e32d35 avoid spurious "bad" markup for show/test_proof;
wenzelm
parents: 49890
diff changeset
  1183
fun global_skip_proof int state =
c4bd02e32d35 avoid spurious "bad" markup for show/test_proof;
wenzelm
parents: 49890
diff changeset
  1184
  global_terminal_proof ((Method.sorry_text int, Position.no_range), NONE) state before
51551
88d1d19fb74f tuned signature and module arrangement;
wenzelm
parents: 51383
diff changeset
  1185
  Skip_Proof.report (context_of state);
49907
c4bd02e32d35 avoid spurious "bad" markup for show/test_proof;
wenzelm
parents: 49890
diff changeset
  1186
c4bd02e32d35 avoid spurious "bad" markup for show/test_proof;
wenzelm
parents: 49890
diff changeset
  1187
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1188
(* common goal statements *)
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1189
60406
12cc54fac9b0 allow for_fixes for 'have', 'show' etc.;
wenzelm
parents: 60403
diff changeset
  1190
fun internal_goal print_results mode =
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
  1191
  local_goal print_results
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
  1192
    (fn a => fn b => fn c => Proof_Context.cert_statement a b c o Proof_Context.set_mode mode) (K I);
60406
12cc54fac9b0 allow for_fixes for 'have', 'show' etc.;
wenzelm
parents: 60403
diff changeset
  1193
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1194
local
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1195
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
  1196
fun gen_have prep_statement prep_att strict_asm before_qed after_qed fixes assumes shows int =
56932
11a4001b06c6 more position markup to help locating the query context, e.g. from "Info" dockable;
wenzelm
parents: 56912
diff changeset
  1197
  local_goal (Proof_Display.print_results int (Position.thread_data ()))
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
  1198
    prep_statement prep_att strict_asm "have" before_qed after_qed fixes assumes shows;
6896
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
  1199
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
  1200
fun gen_show prep_statement prep_att strict_asm before_qed after_qed fixes assumes shows int state =
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1201
  let
32738
15bb09ca0378 explicit indication of Unsynchronized.ref;
wenzelm
parents: 32193
diff changeset
  1202
    val testing = Unsynchronized.ref false;
15bb09ca0378 explicit indication of Unsynchronized.ref;
wenzelm
parents: 32193
diff changeset
  1203
    val rule = Unsynchronized.ref (NONE: thm option);
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1204
    fun fail_msg ctxt =
50315
cf9002ac1018 recovered error to finish proof (e.g. bad obtain export) from 223f18cfbb32;
wenzelm
parents: 50201
diff changeset
  1205
      "Local statement fails to refine any pending goal" ::
33389
bb3a5fa94a91 modernized structure Proof_Display;
wenzelm
parents: 33386
diff changeset
  1206
      (case ! rule of NONE => [] | SOME th => [Proof_Display.string_of_rule ctxt "Failed" th])
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1207
      |> cat_lines;
6896
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
  1208
56932
11a4001b06c6 more position markup to help locating the query context, e.g. from "Info" dockable;
wenzelm
parents: 56912
diff changeset
  1209
    val pos = Position.thread_data ();
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1210
    fun print_results ctxt res =
46728
85f8e3932712 display proof results as "state", to suppress odd squiggles in the Prover IDE (see also 9240be8c8c69);
wenzelm
parents: 46466
diff changeset
  1211
      if ! testing then ()
56932
11a4001b06c6 more position markup to help locating the query context, e.g. from "Info" dockable;
wenzelm
parents: 56912
diff changeset
  1212
      else Proof_Display.print_results int pos ctxt res;
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1213
    fun print_rule ctxt th =
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1214
      if ! testing then rule := SOME th
41181
9240be8c8c69 show: display goal refinement rule as "state", to avoid odd Output.urgent_message and make its association with the goal more explicit;
wenzelm
parents: 40960
diff changeset
  1215
      else if int then
56933
b47193851dc6 more markup;
wenzelm
parents: 56932
diff changeset
  1216
        Proof_Display.string_of_rule ctxt "Successful" th
b47193851dc6 more markup;
wenzelm
parents: 56932
diff changeset
  1217
        |> Markup.markup Markup.text_fold
59184
830bb7ddb3ab explicit message channels for "state", "information";
wenzelm
parents: 59150
diff changeset
  1218
        |> Output.state
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1219
      else ();
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1220
    val test_proof =
50315
cf9002ac1018 recovered error to finish proof (e.g. bad obtain export) from 223f18cfbb32;
wenzelm
parents: 50201
diff changeset
  1221
      local_skip_proof true
39616
8052101883c3 renamed setmp_noncritical to Unsynchronized.setmp to emphasize its meaning;
wenzelm
parents: 39232
diff changeset
  1222
      |> Unsynchronized.setmp testing true
42042
wenzelm
parents: 41677
diff changeset
  1223
      |> Exn.interruptible_capture;
6896
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
  1224
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1225
    fun after_qed' (result_ctxt, results) state' = state'
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1226
      |> refine_goals print_rule result_ctxt (flat results)
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1227
      |> check_result "Failed to refine any pending goal"
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1228
      |> after_qed (result_ctxt, results);
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1229
  in
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1230
    state
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
  1231
    |> local_goal print_results prep_statement prep_att strict_asm
60414
f25f2f2ba48c support for "if prems" in local goal statements;
wenzelm
parents: 60411
diff changeset
  1232
      "show" before_qed after_qed' fixes assumes shows
60461
22995ec9fefd tuned signature;
wenzelm
parents: 60449
diff changeset
  1233
    ||> int ? (fn goal_state =>
49907
c4bd02e32d35 avoid spurious "bad" markup for show/test_proof;
wenzelm
parents: 49890
diff changeset
  1234
      (case test_proof (map_context (Context_Position.set_visible false) goal_state) of
50315
cf9002ac1018 recovered error to finish proof (e.g. bad obtain export) from 223f18cfbb32;
wenzelm
parents: 50201
diff changeset
  1235
        Exn.Res _ => goal_state
42042
wenzelm
parents: 41677
diff changeset
  1236
      | Exn.Exn exn => raise Exn.EXCEPTIONS ([exn, ERROR (fail_msg (context_of goal_state))])))
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1237
  end;
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1238
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1239
in
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1240
63057
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
  1241
val have = gen_have Proof_Context.cert_statement (K I);
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
  1242
val have_cmd = gen_have Proof_Context.read_statement Attrib.attribute_cmd;
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
  1243
val show = gen_show Proof_Context.cert_statement (K I);
50802acac277 more uniform operations for structured statements;
wenzelm
parents: 63056
diff changeset
  1244
val show_cmd = gen_show Proof_Context.read_statement Attrib.attribute_cmd;
6896
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
  1245
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
  1246
end;
17359
543735c6f424 major cleanup of interfaces and implementation;
wenzelm
parents: 17203
diff changeset
  1247
28410
927e603def1f promise global proofs;
wenzelm
parents: 28375
diff changeset
  1248
29385
c96b91bab2e6 future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents: 29383
diff changeset
  1249
c96b91bab2e6 future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents: 29383
diff changeset
  1250
(** future proofs **)
c96b91bab2e6 future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents: 29383
diff changeset
  1251
c96b91bab2e6 future_proof: refined version covers local_future_proof and global_future_proof;
wenzelm
parents: 29383
diff changeset
  1252
(* full proofs *)
28410
927e603def1f promise global proofs;
wenzelm
parents: 28375
diff changeset
  1253
29346
fe6843aa4f5f more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents: 29090
diff changeset
  1254
local
fe6843aa4f5f more precise is_relevant: requires original main goal, not initial goal state;
wenzelm
parents: 29090
diff changeset
  1255
49912
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1256
structure Result = Proof_Data
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1257
(
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1258
  type T = thm option;
59150
wenzelm
parents: 58950
diff changeset
  1259
  fun init _ = NONE;
49912
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1260
);
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1261
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1262
fun the_result ctxt =
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1263
  (case Result.get ctxt of
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1264
    NONE => error "No result of forked proof"
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1265
  | SOME th => th);
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1266
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1267
val set_result = Result.put o SOME;
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1268
val reset_result = Result.put NONE;
c6307ee2665d more robust future_proof result with specific error message (e.g. relevant for incomplete proof of non-registered theorem);
wenzelm
parents: 49909
diff changeset
  1269
51318
e6524a89c9e3 simplified Proof.future_proof;
wenzelm
parents: 51226
diff changeset
  1270
in
e6524a89c9e3 simplified Proof.future_proof;
wenzelm
parents: 51226
diff changeset
  1271
e6524a89c9e3 simplified Proof.future_proof;
wenzelm
parents: 51226
diff changeset
  1272
fun future_proof fork_proof state =
28410
927e603def1f promise global proofs;
wenzelm
parents: 28375
diff changeset
  1273
  let
29381
45d77aeb1608 future_terminal_proof: no fork for interactive mode, assert_backward;
wenzelm
parents: 29364
diff changeset
  1274
    val _ = assert_backward state;
60611
27255d1fbe1a clarified map_node: operate precisely on goal context and goal info (see also 2b8342b0d98c);
wenzelm
parents: 60595
diff changeset
  1275
    val (goal_ctxt, goal_info) = find_goal state;
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1276
    val {statement as (kind, _, prop), using, goal, before_qed, after_qed} = goal_info;
28410
927e603def1f promise global proofs;
wenzelm
parents: 28375
diff changeset
  1277
29383
223f18cfbb32 qed/after_qed: singleton result;
wenzelm
parents: 29381
diff changeset
  1278
    val _ = is_relevant state andalso error "Cannot fork relevant proof";
223f18cfbb32 qed/after_qed: singleton result;
wenzelm
parents: 29381
diff changeset
  1279
60415
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: 60414
diff changeset
  1280
    val after_qed' =
9d37b2330ee3 clarified local after_qed: result is not exported yet;
wenzelm
parents: