src/Pure/Isar/proof.ML
author wenzelm
Wed, 28 Nov 2001 00:42:35 +0100
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permissions -rw-r--r--
print_state: up to 7 result names;
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(*  Title:      Pure/Isar/proof.ML
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    ID:         $Id$
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    Author:     Markus Wenzel, TU Muenchen
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    License:    GPL (GNU GENERAL PUBLIC LICENSE)
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Proof states and methods.
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*)
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signature BASIC_PROOF =
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sig
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  val FINDGOAL: (int -> thm -> 'a Seq.seq) -> thm -> 'a Seq.seq
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  val HEADGOAL: (int -> thm -> 'a Seq.seq) -> thm -> 'a Seq.seq
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end;
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signature PROOF =
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sig
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  include BASIC_PROOF
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  type context
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  type state
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  exception STATE of string * state
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  val check_result: string -> state -> 'a Seq.seq -> 'a Seq.seq
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  val init_state: theory -> state
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  val context_of: state -> context
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  val theory_of: state -> theory
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  val sign_of: state -> Sign.sg
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  val warn_extra_tfrees: state -> state -> state
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  val reset_thms: string -> state -> state
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  val the_facts: state -> thm list
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  val the_fact: state -> thm
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  val get_goal: state -> context * (thm list * thm)
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  val goal_facts: (state -> thm list) -> state -> state
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  val use_facts: state -> state
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  val reset_facts: state -> state
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  val is_chain: state -> bool
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  val assert_forward: 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 verbose: bool ref
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  val print_state: int -> state -> unit
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  val pretty_goals: bool -> state -> Pretty.T list
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  val level: state -> int
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  type method
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  val method: (thm list -> tactic) -> method
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  val method_cases: (thm list -> thm -> (thm * (string * RuleCases.T) list) Seq.seq) -> method
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  val refine: (context -> method) -> state -> state Seq.seq
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  val refine_end: (context -> method) -> state -> state Seq.seq
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  val match_bind: (string list * string) list -> state -> state
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  val match_bind_i: (term list * term) list -> state -> state
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  val let_bind: (string list * string) list -> state -> state
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  val let_bind_i: (term list * term) list -> state -> state
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  val simple_have_thms: string -> thm list -> state -> state
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  val have_thmss: ((string * context attribute list) *
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    (thm list * context attribute list) list) list -> state -> state
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  val with_thmss: ((string * context attribute list) *
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    (thm list * context attribute list) list) list -> state -> state
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  val fix: (string list * string option) list -> state -> state
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  val fix_i: (string list * typ option) list -> state -> state
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  val assm: ProofContext.exporter
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    -> ((string * context attribute list) * (string * (string list * string list)) list) list
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    -> state -> state
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  val assm_i: ProofContext.exporter
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    -> ((string * context attribute list) * (term * (term list * term list)) list) list
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    -> state -> state
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  val assume:
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    ((string * context attribute list) * (string * (string list * string list)) list) list
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    -> state -> state
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  val assume_i: ((string * context attribute list) * (term * (term list * term list)) list) list
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    -> state -> state
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  val presume:
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    ((string * context attribute list) * (string * (string list * string list)) list) list
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    -> state -> state
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  val presume_i: ((string * context attribute list) * (term * (term list * term list)) list) list
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    -> state -> state
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  val def: string -> context attribute list -> string *  (string * string list) -> state -> state
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  val def_i: string -> context attribute list -> string * (term * term list) -> state -> state
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  val invoke_case: string * string option list * context attribute list -> state -> state
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  val multi_theorem: string -> bstring * theory attribute list
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    -> (xstring * context attribute list) option -> context attribute Locale.element list
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    -> ((bstring * theory attribute list) * (string * (string list * string list)) list) list
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    -> theory -> state
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  val multi_theorem_i: string -> bstring * theory attribute list
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    -> (string * context attribute list) option -> context attribute Locale.element_i list
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    -> ((bstring * theory attribute list) * (term * (term list * term list)) list) list
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    -> theory -> state
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  val theorem: string
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    -> (xstring * context attribute list) option -> context attribute Locale.element list
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    -> bstring -> theory attribute list -> string * (string list * string list) -> theory -> state
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  val theorem_i: string
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    -> (string * context attribute list) option -> context attribute Locale.element_i list
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    -> bstring -> theory attribute list -> term * (term list * term list) -> theory -> state
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  val chain: state -> state
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  val from_facts: thm list -> state -> state
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  val show: (bool -> state -> state) -> (state -> state Seq.seq)
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    -> ((string * context attribute list) * (string * (string list * string list)) list) list
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    -> bool -> state -> state
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  val show_i: (bool -> state -> state) -> (state -> state Seq.seq)
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    -> ((string * context attribute list) * (term * (term list * term list)) list) list
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    -> bool -> state -> state
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  val have: (state -> state Seq.seq)
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    -> ((string * context attribute list) * (string * (string list * string list)) list) list
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    -> state -> state
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  val have_i: (state -> state Seq.seq)
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    -> ((string * context attribute list) * (term * (term list * term list)) list) list
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    -> state -> state
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  val at_bottom: state -> bool
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  val local_qed: (state -> state Seq.seq)
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    -> (context -> string * (string * thm list) list -> unit) * (context -> thm -> unit)
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    -> state -> state Seq.seq
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  val global_qed: (state -> state Seq.seq) -> state
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    -> (theory * ((string * string) * (string * thm list) list)) Seq.seq
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  val begin_block: state -> state
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  val end_block: state -> state Seq.seq
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  val next_block: state -> state
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end;
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signature PRIVATE_PROOF =
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sig
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  include PROOF
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  val put_data: Object.kind -> ('a -> Object.T) -> 'a -> state -> state
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end;
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structure Proof: PRIVATE_PROOF =
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struct
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(** proof state **)
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type context = ProofContext.context;
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(* type goal *)
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datatype kind =
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  Theorem of string *                           (*theorem kind*)
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    (bstring * theory attribute list) *         (*common result binding*)
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    (string * context attribute list) option *  (*target locale*)
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    theory attribute list list |                (*attributes of individual result binding*)
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  Show of context attribute list list |         (*intermediate result, solving subgoal*)
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  Have of context attribute list list;          (*intermediate result*)
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fun common_name "" = "" | common_name a = " " ^ a;
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fun kind_name _ (Theorem (s, (a, _), None, _)) = s ^ common_name a
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  | kind_name sg (Theorem (s, (a, _), Some (name, _), _)) =
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      s ^ common_name a ^ " (in " ^ Locale.cond_extern sg name ^ ")"
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  | kind_name _ (Show _) = "show"
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  | kind_name _ (Have _) = "have";
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type goal =
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 (kind *             (*result kind*)
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  string list *      (*result names*)
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  term list list) *  (*result statements*)
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 (thm list *         (*use facts*)
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  thm);              (*goal: subgoals ==> statement*)
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(* type mode *)
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datatype mode = Forward | ForwardChain | Backward;
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val mode_name = (fn Forward => "state" | ForwardChain => "chain" | Backward => "prove");
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(* datatype state *)
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datatype node =
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  Node of
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   {context: context,
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    facts: thm list option,
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    mode: mode,
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    goal: (goal * (state -> state Seq.seq)) option}
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and state =
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  State of
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    node *              (*current*)
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    node list;          (*parents wrt. block structure*)
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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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exception STATE of string * state;
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fun err_malformed name state =
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  raise STATE (name ^ ": internal error -- malformed proof state", state);
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fun check_result msg state sq =
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  (case Seq.pull sq of
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    None => raise STATE (msg, state)
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  | Some s_sq => Seq.cons s_sq);
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fun map_current f (State (Node {context, facts, mode, goal}, nodes)) =
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  State (make_node (f (context, facts, mode, goal)), nodes);
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fun init_state thy =
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  State (make_node (ProofContext.init thy, None, Forward, None), []);
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(** basic proof state operations **)
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(* context *)
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fun context_of (State (Node {context, ...}, _)) = context;
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val theory_of = ProofContext.theory_of o context_of;
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val sign_of = ProofContext.sign_of o context_of;
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fun map_context f = map_current (fn (ctxt, facts, mode, goal) => (f ctxt, facts, mode, goal));
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fun map_context_result f (state as State (Node {context, facts, mode, goal}, nodes)) =
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  let val (context', result) = f context
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  in (State (make_node (context', facts, mode, goal), nodes), result) end;
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fun put_data kind f = map_context o ProofContext.put_data kind f;
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val warn_extra_tfrees = map_context o ProofContext.warn_extra_tfrees o context_of;
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val add_binds_i = map_context o ProofContext.add_binds_i;
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val auto_bind_goal = map_context o ProofContext.auto_bind_goal;
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val auto_bind_facts = map_context o ProofContext.auto_bind_facts;
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val put_thms = map_context o ProofContext.put_thms;
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val put_thmss = map_context o ProofContext.put_thmss;
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val reset_thms = map_context o ProofContext.reset_thms;
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val get_case = ProofContext.get_case o context_of;
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(* facts *)
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fun the_facts (State (Node {facts = Some facts, ...}, _)) = facts
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  | the_facts state = raise STATE ("No current facts available", state);
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8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
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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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  | _ => raise STATE ("Single fact expected", state));
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fun assert_facts state = (the_facts state; state);
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fun get_facts (State (Node {facts, ...}, _)) = facts;
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val thisN = "this";
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fun put_facts facts state =
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  state
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  |> map_current (fn (ctxt, _, mode, goal) => (ctxt, facts, mode, goal))
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  |> (case facts of None => reset_thms thisN | Some ths => put_thms (thisN, ths));
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val reset_facts = put_facts None;
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fun these_factss (state, named_factss) =
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  state
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  |> put_thmss named_factss
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  |> put_facts (Some (flat (map #2 named_factss)));
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(* goal *)
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local
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  fun find i (state as State (Node {goal = Some goal, ...}, _)) = (context_of state, (i, goal))
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    | find i (State (Node {goal = None, ...}, node :: nodes)) = find (i + 1) (State (node, nodes))
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    | find _ (state as State (_, [])) = err_malformed "find_goal" state;
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in val find_goal = find 0 end;
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fun get_goal state =
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  let val (ctxt, (_, ((_, x), _))) = find_goal state
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  in (ctxt, x) end;
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fun put_goal goal = map_current (fn (ctxt, facts, mode, _) => (ctxt, facts, mode, goal));
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fun map_goal f g (State (Node {context, facts, mode, goal = Some goal}, nodes)) =
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      State (make_node (f context, facts, mode, Some (g goal)), nodes)
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  | map_goal f g (State (nd, node :: nodes)) =
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      let val State (node', nodes') = map_goal f g (State (node, nodes))
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      in map_context f (State (nd, node' :: nodes')) end
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  | map_goal _ _ state = state;
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fun goal_facts get state =
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  state
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  |> map_goal I (fn ((result, (_, thm)), f) => ((result, (get state, thm)), f));
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fun use_facts state =
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  state
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  |> goal_facts the_facts
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  |> reset_facts;
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(* mode *)
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fun get_mode (State (Node {mode, ...}, _)) = mode;
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fun put_mode mode = map_current (fn (ctxt, facts, _, goal) => (ctxt, facts, mode, goal));
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val enter_forward = put_mode Forward;
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val enter_forward_chain = put_mode ForwardChain;
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val enter_backward = put_mode Backward;
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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 raise STATE ("Illegal application of proof command in "
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      ^ quote (mode_name mode) ^ " mode", state)
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  end;
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fun is_chain state = get_mode state = ForwardChain;
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val assert_forward = assert_mode (equal Forward);
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val assert_forward_or_chain = assert_mode (equal Forward orf equal ForwardChain);
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val assert_backward = assert_mode (equal Backward);
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e50a130ec9af assert_no_chain;
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val assert_no_chain = assert_mode (not_equal ForwardChain);
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(* blocks *)
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fun level (State (_, nodes)) = length nodes;
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fun open_block (State (node, nodes)) = State (node, node :: nodes);
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fun new_block state =
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  state
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  |> open_block
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  |> put_goal None;
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fun close_block (state as State (_, node :: nodes)) = State (node, nodes)
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  | close_block state = raise STATE ("Unbalanced block parentheses", state);
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(** print_state **)
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val verbose = ProofContext.verbose;
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235576bea937 pretty_goals_local: observes context syntax;
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   330
fun pretty_goals_local ctxt = Display.pretty_goals_aux
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   331
  (ProofContext.pretty_sort ctxt, ProofContext.pretty_typ ctxt, ProofContext.pretty_term ctxt);
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   332
12055
a9c44895cc8c pretty/print functions with context;
wenzelm
parents: 12045
diff changeset
   333
fun pretty_facts _ _ None = []
a9c44895cc8c pretty/print functions with context;
wenzelm
parents: 12045
diff changeset
   334
  | pretty_facts s ctxt (Some ths) =
a9c44895cc8c pretty/print functions with context;
wenzelm
parents: 12045
diff changeset
   335
      [Pretty.big_list (s ^ "this:") (map (ProofContext.pretty_thm ctxt) ths), Pretty.str ""];
6756
fe6eb161df3e improved print_state;
wenzelm
parents: 6752
diff changeset
   336
12085
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   337
fun print_state nr (state as State (Node {context = ctxt, facts, mode, goal = _}, nodes)) =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   338
  let
11891
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   339
    val ref (_, _, begin_goal) = Display.current_goals_markers;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   340
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   341
    fun levels_up 0 = ""
7575
e1e2d07287d8 improved output;
wenzelm
parents: 7556
diff changeset
   342
      | levels_up 1 = ", 1 level up"
e1e2d07287d8 improved output;
wenzelm
parents: 7556
diff changeset
   343
      | levels_up i = ", " ^ string_of_int i ^ " levels up";
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   344
11556
8e0768929662 print_state: subgoals;
wenzelm
parents: 11549
diff changeset
   345
    fun subgoals 0 = ""
8e0768929662 print_state: subgoals;
wenzelm
parents: 11549
diff changeset
   346
      | subgoals 1 = ", 1 subgoal"
8e0768929662 print_state: subgoals;
wenzelm
parents: 11549
diff changeset
   347
      | subgoals n = ", " ^ string_of_int n ^ " subgoals";
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   348
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   349
    fun prt_names names =
12242
282a92bc5655 multi_theorem: common statement header (covers *all* results);
wenzelm
parents: 12223
diff changeset
   350
      (case filter_out (equal "") names of [] => ""
12308
4e7c3f45a083 print_state: up to 7 result names;
wenzelm
parents: 12244
diff changeset
   351
      | nms => " " ^ enclose "(" ")" (space_implode " and " (take (7, nms) @
4e7c3f45a083 print_state: up to 7 result names;
wenzelm
parents: 12244
diff changeset
   352
          (if length nms > 7 then ["..."] else []))));
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   353
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   354
    fun prt_goal (_, (i, (((kind, names, _), (goal_facts, thm)), _))) =
12085
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   355
      pretty_facts "using " ctxt
8462
7f4e4e875c13 pretty chunks;
wenzelm
parents: 8450
diff changeset
   356
        (if mode <> Backward orelse null goal_facts then None else Some goal_facts) @
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   357
      [Pretty.str ("goal (" ^ kind_name (sign_of state) kind ^ prt_names names ^
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   358
          levels_up (i div 2) ^ subgoals (Thm.nprems_of thm) ^ "):")] @
12085
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   359
      pretty_goals_local ctxt begin_goal (true, true) (! Display.goals_limit) thm;
6848
3d82756e1af5 tuned print_state;
wenzelm
parents: 6798
diff changeset
   360
8462
7f4e4e875c13 pretty chunks;
wenzelm
parents: 8450
diff changeset
   361
    val ctxt_prts =
12085
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   362
      if ! verbose orelse mode = Forward then ProofContext.pretty_context ctxt
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   363
      else if mode = Backward then ProofContext.pretty_asms ctxt
7575
e1e2d07287d8 improved output;
wenzelm
parents: 7556
diff changeset
   364
      else [];
8462
7f4e4e875c13 pretty chunks;
wenzelm
parents: 8450
diff changeset
   365
7f4e4e875c13 pretty chunks;
wenzelm
parents: 8450
diff changeset
   366
    val prts =
8582
3051aa8aa412 tuned output;
wenzelm
parents: 8561
diff changeset
   367
     [Pretty.str ("proof (" ^ mode_name mode ^ "): step " ^ string_of_int nr ^
12010
e1d4df962ac9 theorem(_i): locale argument;
wenzelm
parents: 12000
diff changeset
   368
        (if ! verbose then ", depth " ^ string_of_int (length nodes div 2 - 1)
8561
2675e2f4dc61 tuned output;
wenzelm
parents: 8542
diff changeset
   369
        else "")), Pretty.str ""] @
8462
7f4e4e875c13 pretty chunks;
wenzelm
parents: 8450
diff changeset
   370
     (if null ctxt_prts then [] else ctxt_prts @ [Pretty.str ""]) @
7f4e4e875c13 pretty chunks;
wenzelm
parents: 8450
diff changeset
   371
     (if ! verbose orelse mode = Forward then
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   372
       (pretty_facts "" ctxt facts @ prt_goal (find_goal state))
12085
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   373
      else if mode = ForwardChain then pretty_facts "picking " ctxt facts
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   374
      else prt_goal (find_goal state))
8462
7f4e4e875c13 pretty chunks;
wenzelm
parents: 8450
diff changeset
   375
  in Pretty.writeln (Pretty.chunks prts) end;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   376
12085
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   377
fun pretty_goals main state =
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   378
  let val (ctxt, (_, ((_, (_, thm)), _))) = find_goal state
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   379
  in pretty_goals_local ctxt "" (false, main) (! Display.goals_limit) thm end;
10320
26d4b84eb047 added pretty_goals;
wenzelm
parents: 9482
diff changeset
   380
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   381
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   382
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   383
(** proof steps **)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   384
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   385
(* datatype method *)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   386
8374
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   387
datatype method =
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   388
  Method of thm list -> thm -> (thm * (string * RuleCases.T) list) Seq.seq;
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   389
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   390
fun method tac = Method (fn facts => fn st => Seq.map (rpair []) (tac facts st));
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   391
val method_cases = Method;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   392
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   393
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   394
(* refine goal *)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   395
8234
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   396
local
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   397
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   398
fun check_sign sg state =
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   399
  if Sign.subsig (sg, sign_of state) then state
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   400
  else raise STATE ("Bad signature of result: " ^ Sign.str_of_sg sg, state);
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   401
8234
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   402
fun gen_refine current_context meth_fun state =
6848
3d82756e1af5 tuned print_state;
wenzelm
parents: 6798
diff changeset
   403
  let
10553
7f239ef89c50 removed get_goal;
wenzelm
parents: 10508
diff changeset
   404
    val (goal_ctxt, (_, ((result, (facts, thm)), f))) = find_goal state;
8234
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   405
    val Method meth = meth_fun (if current_context then context_of state else goal_ctxt);
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   406
8374
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   407
    fun refn (thm', cases) =
6848
3d82756e1af5 tuned print_state;
wenzelm
parents: 6798
diff changeset
   408
      state
3d82756e1af5 tuned print_state;
wenzelm
parents: 6798
diff changeset
   409
      |> check_sign (Thm.sign_of_thm thm')
8374
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   410
      |> map_goal (ProofContext.add_cases cases) (K ((result, (facts, thm')), f));
6848
3d82756e1af5 tuned print_state;
wenzelm
parents: 6798
diff changeset
   411
  in Seq.map refn (meth facts thm) end;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   412
8234
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   413
in
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   414
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   415
val refine = gen_refine true;
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   416
val refine_end = gen_refine false;
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   417
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   418
end;
36a85a6c4852 refine_end;
wenzelm
parents: 8206
diff changeset
   419
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   420
11917
9a0a736d820b moved RANGE to tctical.ML;
wenzelm
parents: 11906
diff changeset
   421
(* goal addressing *)
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   422
8152
ce3387fafebb replaced FIRSTGOAL by FINDGOAL (backtracking!);
wenzelm
parents: 8095
diff changeset
   423
fun FINDGOAL tac st =
8374
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   424
  let fun find (i, n) = if i > n then Seq.fail else Seq.APPEND (tac i, find (i + 1, n))
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   425
  in find (1, Thm.nprems_of st) st end;
8152
ce3387fafebb replaced FIRSTGOAL by FINDGOAL (backtracking!);
wenzelm
parents: 8095
diff changeset
   426
8166
97414b447a02 added HEADGOAL;
wenzelm
parents: 8152
diff changeset
   427
fun HEADGOAL tac = tac 1;
97414b447a02 added HEADGOAL;
wenzelm
parents: 8152
diff changeset
   428
9469
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
   429
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
   430
(* export results *)
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
   431
11816
545aab7410ac simplified exporter interface;
wenzelm
parents: 11793
diff changeset
   432
fun refine_tac rule =
545aab7410ac simplified exporter interface;
wenzelm
parents: 11793
diff changeset
   433
  Tactic.rtac rule THEN_ALL_NEW (SUBGOAL (fn (goal, i) =>
545aab7410ac simplified exporter interface;
wenzelm
parents: 11793
diff changeset
   434
    if can Logic.dest_goal (Logic.strip_assums_concl goal) then
545aab7410ac simplified exporter interface;
wenzelm
parents: 11793
diff changeset
   435
      Tactic.etac Drule.triv_goal i
545aab7410ac simplified exporter interface;
wenzelm
parents: 11793
diff changeset
   436
    else all_tac));
545aab7410ac simplified exporter interface;
wenzelm
parents: 11793
diff changeset
   437
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   438
fun export_goal inner print_rule raw_rule state =
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   439
  let
10553
7f239ef89c50 removed get_goal;
wenzelm
parents: 10508
diff changeset
   440
    val (outer, (_, ((result, (facts, thm)), f))) = find_goal state;
12010
e1d4df962ac9 theorem(_i): locale argument;
wenzelm
parents: 12000
diff changeset
   441
    val exp_tac = ProofContext.export true inner outer;
9469
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
   442
    fun exp_rule rule =
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
   443
      let
12055
a9c44895cc8c pretty/print functions with context;
wenzelm
parents: 12045
diff changeset
   444
        val _ = print_rule outer rule;
11816
545aab7410ac simplified exporter interface;
wenzelm
parents: 11793
diff changeset
   445
        val thmq = FINDGOAL (refine_tac rule) thm;
9469
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
   446
      in Seq.map (fn th => map_goal I (K ((result, (facts, th)), f)) state) thmq end;
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
   447
  in raw_rule |> exp_tac |> (Seq.flat o Seq.map exp_rule) end;
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   448
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   449
fun export_goals inner print_rule raw_rules =
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   450
  Seq.EVERY (map (export_goal inner print_rule) raw_rules);
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   451
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   452
fun transfer_facts inner_state state =
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   453
  (case get_facts inner_state of
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   454
    None => Seq.single (reset_facts state)
8617
33e2bd53aec3 support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents: 8582
diff changeset
   455
  | Some thms =>
33e2bd53aec3 support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents: 8582
diff changeset
   456
      let
12010
e1d4df962ac9 theorem(_i): locale argument;
wenzelm
parents: 12000
diff changeset
   457
        val exp_tac = ProofContext.export false (context_of inner_state) (context_of state);
11816
545aab7410ac simplified exporter interface;
wenzelm
parents: 11793
diff changeset
   458
        val thmqs = map exp_tac thms;
8617
33e2bd53aec3 support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents: 8582
diff changeset
   459
      in Seq.map (fn ths => put_facts (Some ths) state) (Seq.commute thmqs) end);
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   460
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   461
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   462
(* prepare result *)
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   463
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   464
fun prep_result state ts raw_th =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   465
  let
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   466
    val ctxt = context_of state;
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   467
    fun err msg = raise STATE (msg, state);
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   468
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   469
    val ngoals = Thm.nprems_of raw_th;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   470
    val _ =
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   471
      if ngoals = 0 then ()
12085
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   472
      else (err (Pretty.string_of (Pretty.chunks (pretty_goals_local ctxt "" (true, true)
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   473
            (! Display.goals_limit) raw_th @
12085
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   474
          [Pretty.str (string_of_int ngoals ^ " unsolved goal(s)!")]))));
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   475
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   476
    val {hyps, sign, ...} = Thm.rep_thm raw_th;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   477
    val tsig = Sign.tsig_of sign;
12055
a9c44895cc8c pretty/print functions with context;
wenzelm
parents: 12045
diff changeset
   478
    val casms = flat (map #1 (ProofContext.assumptions_of (context_of state)));
11816
545aab7410ac simplified exporter interface;
wenzelm
parents: 11793
diff changeset
   479
    val bad_hyps = Library.gen_rems Term.aconv (hyps, map Thm.term_of casms);
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   480
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   481
    val th = raw_th RS Drule.rev_triv_goal;
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   482
    val ths = Drule.conj_elim_precise (length ts) th
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   483
      handle THM _ => err "Main goal structure corrupted";
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   484
    val props = map (#prop o Thm.rep_thm) ths;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   485
  in
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   486
    conditional (not (null bad_hyps)) (fn () => err ("Additional hypotheses:\n" ^
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   487
        cat_lines (map (ProofContext.string_of_term ctxt) bad_hyps)));
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   488
    conditional (exists (not o Pattern.matches tsig) (ts ~~ props)) (fn () =>
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   489
      err ("Proved a different theorem: " ^ Pretty.string_of (ProofContext.pretty_thm ctxt th)));
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   490
    ths
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   491
  end;
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   492
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   493
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   494
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   495
(*** structured proof commands ***)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   496
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   497
(** context **)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   498
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   499
(* bind *)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   500
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   501
fun gen_bind f x state =
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   502
  state
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   503
  |> assert_forward
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   504
  |> map_context (f x)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   505
  |> reset_facts;
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   506
8617
33e2bd53aec3 support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents: 8582
diff changeset
   507
val match_bind = gen_bind (ProofContext.match_bind false);
33e2bd53aec3 support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents: 8582
diff changeset
   508
val match_bind_i = gen_bind (ProofContext.match_bind_i false);
33e2bd53aec3 support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents: 8582
diff changeset
   509
val let_bind = gen_bind (ProofContext.match_bind true);
33e2bd53aec3 support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents: 8582
diff changeset
   510
val let_bind_i = gen_bind (ProofContext.match_bind_i true);
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   511
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   512
9196
1f6f66fe777a facts: handle multiple lists of arguments;
wenzelm
parents: 8991
diff changeset
   513
(* have_thmss etc. *)
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   514
9196
1f6f66fe777a facts: handle multiple lists of arguments;
wenzelm
parents: 8991
diff changeset
   515
fun have_thmss args state =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   516
  state
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   517
  |> assert_forward
9196
1f6f66fe777a facts: handle multiple lists of arguments;
wenzelm
parents: 8991
diff changeset
   518
  |> map_context_result (ProofContext.have_thmss args)
1f6f66fe777a facts: handle multiple lists of arguments;
wenzelm
parents: 8991
diff changeset
   519
  |> these_factss;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   520
9196
1f6f66fe777a facts: handle multiple lists of arguments;
wenzelm
parents: 8991
diff changeset
   521
fun simple_have_thms name thms = have_thmss [((name, []), [(thms, [])])];
1f6f66fe777a facts: handle multiple lists of arguments;
wenzelm
parents: 8991
diff changeset
   522
1f6f66fe777a facts: handle multiple lists of arguments;
wenzelm
parents: 8991
diff changeset
   523
fun with_thmss args state =
1f6f66fe777a facts: handle multiple lists of arguments;
wenzelm
parents: 8991
diff changeset
   524
  let val state' = state |> have_thmss args
1f6f66fe777a facts: handle multiple lists of arguments;
wenzelm
parents: 8991
diff changeset
   525
  in state' |> simple_have_thms "" (the_facts state' @ the_facts state) end;
6876
4ae9c47f2b6b have_thmss: more_ths;
wenzelm
parents: 6871
diff changeset
   526
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   527
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   528
(* fix *)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   529
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   530
fun gen_fix f xs state =
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   531
  state
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   532
  |> assert_forward
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   533
  |> map_context (f xs)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   534
  |> reset_facts;
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   535
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   536
val fix = gen_fix ProofContext.fix;
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   537
val fix_i = gen_fix ProofContext.fix_i;
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   538
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   539
11891
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   540
(* assume and presume *)
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   541
9469
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
   542
fun gen_assume f exp args state =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   543
  state
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   544
  |> assert_forward
9469
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
   545
  |> map_context_result (f exp args)
11924
b6def266cbb9 simplified ProofContext.assume interface;
wenzelm
parents: 11917
diff changeset
   546
  |> these_factss;
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   547
7271
442456b2a8bb assume: multiple args;
wenzelm
parents: 7201
diff changeset
   548
val assm = gen_assume ProofContext.assume;
442456b2a8bb assume: multiple args;
wenzelm
parents: 7201
diff changeset
   549
val assm_i = gen_assume ProofContext.assume_i;
11917
9a0a736d820b moved RANGE to tctical.ML;
wenzelm
parents: 11906
diff changeset
   550
val assume = assm ProofContext.export_assume;
9a0a736d820b moved RANGE to tctical.ML;
wenzelm
parents: 11906
diff changeset
   551
val assume_i = assm_i ProofContext.export_assume;
9a0a736d820b moved RANGE to tctical.ML;
wenzelm
parents: 11906
diff changeset
   552
val presume = assm ProofContext.export_presume;
9a0a736d820b moved RANGE to tctical.ML;
wenzelm
parents: 11906
diff changeset
   553
val presume_i = assm_i ProofContext.export_presume;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   554
7271
442456b2a8bb assume: multiple args;
wenzelm
parents: 7201
diff changeset
   555
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   556
11891
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   557
(** local definitions **)
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   558
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   559
fun gen_def fix prep_term prep_pats raw_name atts (x, (raw_rhs, raw_pats)) state =
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   560
  let
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   561
    val _ = assert_forward state;
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   562
    val ctxt = context_of state;
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   563
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   564
    (*rhs*)
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   565
    val name = if raw_name = "" then Thm.def_name x else raw_name;
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   566
    val rhs = prep_term ctxt raw_rhs;
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   567
    val T = Term.fastype_of rhs;
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   568
    val pats = prep_pats T (ProofContext.declare_term rhs ctxt) raw_pats;
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   569
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   570
    (*lhs*)
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   571
    val lhs = ProofContext.bind_skolem ctxt [x] (Free (x, T));
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   572
  in
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   573
    state
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   574
    |> fix [([x], None)]
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   575
    |> match_bind_i [(pats, rhs)]
11917
9a0a736d820b moved RANGE to tctical.ML;
wenzelm
parents: 11906
diff changeset
   576
    |> assm_i ProofContext.export_def [((name, atts), [(Logic.mk_equals (lhs, rhs), ([], []))])]
11891
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   577
  end;
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   578
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   579
val def = gen_def fix ProofContext.read_term ProofContext.read_term_pats;
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   580
val def_i = gen_def fix_i ProofContext.cert_term ProofContext.cert_term_pats;
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   581
99569e5f0ab5 moved local defs to proof.ML (for locales);
wenzelm
parents: 11816
diff changeset
   582
8374
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   583
(* invoke_case *)
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   584
11793
5f0ab6f5c280 support impromptu terminology of cases parameters;
wenzelm
parents: 11742
diff changeset
   585
fun invoke_case (name, xs, atts) state =
9292
c5875175751f invoke_case: bind_skolem;
wenzelm
parents: 9196
diff changeset
   586
  let
10830
d19f9f4c35ee avoid renaming of params in cases;
wenzelm
parents: 10809
diff changeset
   587
    val (state', (lets, asms)) =
11793
5f0ab6f5c280 support impromptu terminology of cases parameters;
wenzelm
parents: 11742
diff changeset
   588
      map_context_result (ProofContext.apply_case (get_case state name xs)) state;
9292
c5875175751f invoke_case: bind_skolem;
wenzelm
parents: 9196
diff changeset
   589
  in
10830
d19f9f4c35ee avoid renaming of params in cases;
wenzelm
parents: 10809
diff changeset
   590
    state'
10809
e827c779ae2e moved norm_hhf_tac to Pure/tactic.ML;
wenzelm
parents: 10553
diff changeset
   591
    |> add_binds_i lets
10830
d19f9f4c35ee avoid renaming of params in cases;
wenzelm
parents: 10809
diff changeset
   592
    |> assume_i [((name, atts), map (rpair ([], [])) asms)]
8374
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   593
  end;
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   594
ffb2eb084078 generalized FINDGOAL, HEADGOAL;
wenzelm
parents: 8239
diff changeset
   595
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   596
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   597
(** goals **)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   598
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   599
(* forward chaining *)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   600
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   601
fun chain state =
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   602
  state
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   603
  |> assert_forward
6848
3d82756e1af5 tuned print_state;
wenzelm
parents: 6798
diff changeset
   604
  |> assert_facts
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   605
  |> enter_forward_chain;
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   606
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   607
fun from_facts facts state =
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   608
  state
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   609
  |> put_facts (Some facts)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   610
  |> chain;
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   611
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   612
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   613
(* setup goals *)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   614
11549
e7265e70fd7c renamed "antecedent" case to "rule_context";
wenzelm
parents: 11525
diff changeset
   615
val rule_contextN = "rule_context";
8991
dc70b797827f case 'antecedent';
wenzelm
parents: 8807
diff changeset
   616
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   617
fun setup_goal opt_block prepp autofix kind after_qed names raw_propss state =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   618
  let
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   619
    val (state', (propss, gen_binds)) =
5936
406eb27fe53c match_bind(_i): 'as' patterns;
wenzelm
parents: 5918
diff changeset
   620
      state
406eb27fe53c match_bind(_i): 'as' patterns;
wenzelm
parents: 5918
diff changeset
   621
      |> assert_forward_or_chain
406eb27fe53c match_bind(_i): 'as' patterns;
wenzelm
parents: 5918
diff changeset
   622
      |> enter_forward
8617
33e2bd53aec3 support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents: 8582
diff changeset
   623
      |> opt_block
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   624
      |> map_context_result (fn ctxt => prepp (ctxt, raw_propss));
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   625
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   626
    val props = flat propss;
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   627
    val cprop = Thm.cterm_of (sign_of state') (foldr1 Logic.mk_conjunction props);
7556
f3e78ebcf6ba setup_goal: do not insert assumptions;
wenzelm
parents: 7487
diff changeset
   628
    val goal = Drule.mk_triv_goal cprop;
10553
7f239ef89c50 removed get_goal;
wenzelm
parents: 10508
diff changeset
   629
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   630
    val tvars = foldr Term.add_term_tvars (props, []);
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   631
    val vars = foldr Term.add_term_vars (props, []);
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   632
  in
10553
7f239ef89c50 removed get_goal;
wenzelm
parents: 10508
diff changeset
   633
    if null tvars then ()
7f239ef89c50 removed get_goal;
wenzelm
parents: 10508
diff changeset
   634
    else raise STATE ("Goal statement contains illegal schematic type variable(s): " ^
7f239ef89c50 removed get_goal;
wenzelm
parents: 10508
diff changeset
   635
      commas (map (Syntax.string_of_vname o #1) tvars), state);
7f239ef89c50 removed get_goal;
wenzelm
parents: 10508
diff changeset
   636
    if null vars then ()
7f239ef89c50 removed get_goal;
wenzelm
parents: 10508
diff changeset
   637
    else warning ("Goal statement contains unbound schematic variable(s): " ^
12055
a9c44895cc8c pretty/print functions with context;
wenzelm
parents: 12045
diff changeset
   638
      commas (map (ProofContext.string_of_term (context_of state')) vars));
5936
406eb27fe53c match_bind(_i): 'as' patterns;
wenzelm
parents: 5918
diff changeset
   639
    state'
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   640
    |> map_context (autofix props)
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   641
    |> put_goal (Some (((kind, names, propss), ([], goal)), after_qed o map_context gen_binds))
12167
74f92a43bac3 empty rule_context for multiple goals;
wenzelm
parents: 12146
diff changeset
   642
    |> map_context (ProofContext.add_cases
74f92a43bac3 empty rule_context for multiple goals;
wenzelm
parents: 12146
diff changeset
   643
     (if length props = 1 then RuleCases.make true goal [rule_contextN]
74f92a43bac3 empty rule_context for multiple goals;
wenzelm
parents: 12146
diff changeset
   644
      else [(rule_contextN, RuleCases.empty)]))
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   645
    |> auto_bind_goal props
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   646
    |> (if is_chain state then use_facts else reset_facts)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   647
    |> new_block
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   648
    |> enter_backward
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   649
  end;
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   650
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   651
(*global goals*)
12242
282a92bc5655 multi_theorem: common statement header (covers *all* results);
wenzelm
parents: 12223
diff changeset
   652
fun global_goal prepp prep_locale activate kind a raw_locale elems args thy =
12065
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   653
  let val locale = apsome (apfst (prep_locale (Theory.sign_of thy))) raw_locale in
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   654
    thy
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   655
    |> init_state
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   656
    |> open_block
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   657
    |> (case locale of Some (name, _) => map_context (Locale.activate_locale_i name) | None => I)
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   658
    |> open_block
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   659
    |> map_context (activate elems)
12242
282a92bc5655 multi_theorem: common statement header (covers *all* results);
wenzelm
parents: 12223
diff changeset
   660
    |> setup_goal I prepp ProofContext.fix_frees (Theorem (kind, a, locale, map (snd o fst) args))
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   661
      Seq.single (map (fst o fst) args) (map snd args)
12065
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   662
  end;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   663
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   664
val multi_theorem =
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   665
  global_goal ProofContext.bind_propp_schematic Locale.intern Locale.activate_elements;
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   666
val multi_theorem_i =
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   667
  global_goal ProofContext.bind_propp_schematic_i (K I) Locale.activate_elements_i;
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   668
12242
282a92bc5655 multi_theorem: common statement header (covers *all* results);
wenzelm
parents: 12223
diff changeset
   669
fun theorem k locale elems name atts p =
282a92bc5655 multi_theorem: common statement header (covers *all* results);
wenzelm
parents: 12223
diff changeset
   670
  multi_theorem k (name, atts) locale elems [(("", []), [p])];
282a92bc5655 multi_theorem: common statement header (covers *all* results);
wenzelm
parents: 12223
diff changeset
   671
fun theorem_i k locale elems name atts p =
282a92bc5655 multi_theorem: common statement header (covers *all* results);
wenzelm
parents: 12223
diff changeset
   672
  multi_theorem_i k (name, atts) locale elems [(("", []), [p])];
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   673
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   674
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   675
(*local goals*)
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   676
fun local_goal' prepp kind (check: bool -> state -> state) f args int state =
7928
06a11f8cf573 improved handling of warn_extra_tfrees;
wenzelm
parents: 7924
diff changeset
   677
  state
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   678
  |> setup_goal open_block prepp (K I) (kind (map (snd o fst) args))
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   679
    f (map (fst o fst) args) (map snd args)
10936
a0dc597d9173 show(_i): check goal;
wenzelm
parents: 10830
diff changeset
   680
  |> warn_extra_tfrees state
a0dc597d9173 show(_i): check goal;
wenzelm
parents: 10830
diff changeset
   681
  |> check int;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   682
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   683
fun local_goal prepp kind f args = local_goal' prepp kind (K I) f args false;
10936
a0dc597d9173 show(_i): check goal;
wenzelm
parents: 10830
diff changeset
   684
a0dc597d9173 show(_i): check goal;
wenzelm
parents: 10830
diff changeset
   685
val show = local_goal' ProofContext.bind_propp Show;
a0dc597d9173 show(_i): check goal;
wenzelm
parents: 10830
diff changeset
   686
val show_i = local_goal' ProofContext.bind_propp_i Show;
a0dc597d9173 show(_i): check goal;
wenzelm
parents: 10830
diff changeset
   687
val have = local_goal ProofContext.bind_propp Have;
10380
e5370304d893 tuned names;
wenzelm
parents: 10360
diff changeset
   688
val have_i = local_goal ProofContext.bind_propp_i Have;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   689
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   690
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   691
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   692
(** conclusions **)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   693
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   694
(* current goal *)
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   695
7176
a329a37ed91a local goals: after_qed;
wenzelm
parents: 7011
diff changeset
   696
fun current_goal (State (Node {context, goal = Some goal, ...}, _)) = (context, goal)
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   697
  | current_goal state = raise STATE ("No current goal!", state);
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   698
7176
a329a37ed91a local goals: after_qed;
wenzelm
parents: 7011
diff changeset
   699
fun assert_current_goal true (state as State (Node {goal = None, ...}, _)) =
6404
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6262
diff changeset
   700
      raise STATE ("No goal in this block!", state)
7176
a329a37ed91a local goals: after_qed;
wenzelm
parents: 7011
diff changeset
   701
  | assert_current_goal false (state as State (Node {goal = Some _, ...}, _)) =
6404
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6262
diff changeset
   702
      raise STATE ("Goal present in this block!", state)
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6262
diff changeset
   703
  | assert_current_goal _ state = state;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   704
12010
e1d4df962ac9 theorem(_i): locale argument;
wenzelm
parents: 12000
diff changeset
   705
fun assert_bottom b (state as State (_, nodes)) =
e1d4df962ac9 theorem(_i): locale argument;
wenzelm
parents: 12000
diff changeset
   706
  let val bot = (length nodes <= 2) in
e1d4df962ac9 theorem(_i): locale argument;
wenzelm
parents: 12000
diff changeset
   707
    if b andalso not bot then raise STATE ("Not at bottom of proof!", state)
e1d4df962ac9 theorem(_i): locale argument;
wenzelm
parents: 12000
diff changeset
   708
    else if not b andalso bot then raise STATE ("Already at bottom of proof!", state)
e1d4df962ac9 theorem(_i): locale argument;
wenzelm
parents: 12000
diff changeset
   709
    else state
e1d4df962ac9 theorem(_i): locale argument;
wenzelm
parents: 12000
diff changeset
   710
  end;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   711
6404
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6262
diff changeset
   712
val at_bottom = can (assert_bottom true o close_block);
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6262
diff changeset
   713
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   714
fun end_proof bot state =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   715
  state
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   716
  |> assert_forward
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   717
  |> close_block
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   718
  |> assert_bottom bot
7011
7e8e9a26ba2c export init_state;
wenzelm
parents: 6996
diff changeset
   719
  |> assert_current_goal true
7e8e9a26ba2c export init_state;
wenzelm
parents: 6996
diff changeset
   720
  |> goal_facts (K []);
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   721
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   722
6404
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6262
diff changeset
   723
(* local_qed *)
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   724
6982
4d2a3f35af93 added show_hyps flag;
wenzelm
parents: 6950
diff changeset
   725
fun finish_local (print_result, print_rule) state =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   726
  let
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   727
    val (goal_ctxt, (((kind, names, tss), (_, raw_thm)), after_qed)) = current_goal state;
8617
33e2bd53aec3 support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents: 8582
diff changeset
   728
    val outer_state = state |> close_block;
33e2bd53aec3 support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents: 8582
diff changeset
   729
    val outer_ctxt = context_of outer_state;
33e2bd53aec3 support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents: 8582
diff changeset
   730
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   731
    val ts = flat tss;
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   732
    val results = prep_result state ts raw_thm;
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   733
    val resultq =
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   734
      results |> map (ProofContext.export false goal_ctxt outer_ctxt)
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   735
      |> Seq.commute |> Seq.map (Library.unflat tss);
9469
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
   736
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   737
    val (attss, opt_solve) =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   738
      (case kind of
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   739
        Show attss => (attss, export_goals goal_ctxt print_rule results)
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   740
      | Have attss => (attss, Seq.single)
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   741
      | _ => err_malformed "finish_local" state);
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   742
  in
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   743
    print_result goal_ctxt (kind_name (sign_of state) kind, names ~~ Library.unflat tss results);
8617
33e2bd53aec3 support Hindley-Milner polymorphisms in binds and facts;
wenzelm
parents: 8582
diff changeset
   744
    outer_state
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   745
    |> auto_bind_facts (map (ProofContext.generalize goal_ctxt outer_ctxt) ts)
9469
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
   746
    |> (fn st => Seq.map (fn res =>
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   747
      have_thmss ((names ~~ attss) ~~ map (single o Thm.no_attributes) res) st) resultq)
9469
8058d285b1cd export RANGE, hard_asm_tac, soft_asm_tac;
wenzelm
parents: 9292
diff changeset
   748
    |> (Seq.flat o Seq.map opt_solve)
7176
a329a37ed91a local goals: after_qed;
wenzelm
parents: 7011
diff changeset
   749
    |> (Seq.flat o Seq.map after_qed)
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   750
  end;
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   751
6982
4d2a3f35af93 added show_hyps flag;
wenzelm
parents: 6950
diff changeset
   752
fun local_qed finalize print state =
6404
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6262
diff changeset
   753
  state
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   754
  |> end_proof false
6871
01866edde713 added check_result;
wenzelm
parents: 6853
diff changeset
   755
  |> finalize
6982
4d2a3f35af93 added show_hyps flag;
wenzelm
parents: 6950
diff changeset
   756
  |> (Seq.flat o Seq.map (finish_local print));
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   757
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   758
6404
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6262
diff changeset
   759
(* global_qed *)
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   760
12085
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   761
fun locale_prefix None f thy = f thy
12096
8945a021f375 locale_prefix: Sign.base_name;
wenzelm
parents: 12085
diff changeset
   762
  | locale_prefix (Some (loc, _)) f thy =
8945a021f375 locale_prefix: Sign.base_name;
wenzelm
parents: 12085
diff changeset
   763
      thy |> Theory.add_path (Sign.base_name loc) |> f |>> Theory.parent_path;
12085
235576bea937 pretty_goals_local: observes context syntax;
wenzelm
parents: 12065
diff changeset
   764
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   765
fun locale_add_thmss None _ = I
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   766
  | locale_add_thmss (Some (loc, atts)) ths = Locale.add_thmss loc (map (rpair atts) ths);
12065
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   767
6950
ab6d35b7283f global_qed: removed alt_name, alt_att;
wenzelm
parents: 6932
diff changeset
   768
fun finish_global state =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   769
  let
12065
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   770
    fun export inner outer th =
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   771
      (case Seq.pull (ProofContext.export false inner outer th) of
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   772
        Some (th', _) => th' |> Drule.local_standard
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   773
      | None => raise STATE ("Internal failure of theorem export", state));
12010
e1d4df962ac9 theorem(_i): locale argument;
wenzelm
parents: 12000
diff changeset
   774
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   775
    val (goal_ctxt, (((kind, names, tss), (_, raw_thm)), _)) = current_goal state;
12065
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   776
    val locale_ctxt = context_of (state |> close_block);
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   777
    val theory_ctxt = context_of (state |> close_block |> close_block);
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   778
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   779
    val ts = flat tss;
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   780
    val locale_results =
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   781
      prep_result state ts raw_thm |> map (export goal_ctxt locale_ctxt);
12223
d5e76c2e335c finish_global: Drule.strip_shyps_warning (just for warning);
wenzelm
parents: 12167
diff changeset
   782
    val results = locale_results
d5e76c2e335c finish_global: Drule.strip_shyps_warning (just for warning);
wenzelm
parents: 12167
diff changeset
   783
      |> map (Drule.strip_shyps_warning o export locale_ctxt theory_ctxt);
12065
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   784
12242
282a92bc5655 multi_theorem: common statement header (covers *all* results);
wenzelm
parents: 12223
diff changeset
   785
    val (k, (cname, catts), locale, attss) =
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   786
      (case kind of Theorem x => x | _ => err_malformed "finish_global" state);
12242
282a92bc5655 multi_theorem: common statement header (covers *all* results);
wenzelm
parents: 12223
diff changeset
   787
    val (thy1, res') =
12065
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   788
      theory_of state
12146
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   789
      |> locale_prefix locale (PureThy.have_thmss [Drule.kind k]
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   790
          ((names ~~ attss) ~~ map (single o Thm.no_attributes) (Library.unflat tss results)))
8e02a45f77e2 added multi_theorem(_i);
wenzelm
parents: 12096
diff changeset
   791
      |>> locale_add_thmss locale (names ~~ Library.unflat tss locale_results);
12242
282a92bc5655 multi_theorem: common statement header (covers *all* results);
wenzelm
parents: 12223
diff changeset
   792
    val thy2 = thy1 |> PureThy.add_thmss [((cname, flat (map #2 res')), catts)] |> #1;
12244
179f142ffb03 improved treatment of common result name;
wenzelm
parents: 12242
diff changeset
   793
  in (thy2, ((k, cname), res')) end;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   794
10553
7f239ef89c50 removed get_goal;
wenzelm
parents: 10508
diff changeset
   795
(*note: clients should inspect first result only, as backtracking may destroy theory*)
6950
ab6d35b7283f global_qed: removed alt_name, alt_att;
wenzelm
parents: 6932
diff changeset
   796
fun global_qed finalize state =
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   797
  state
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   798
  |> end_proof true
6871
01866edde713 added check_result;
wenzelm
parents: 6853
diff changeset
   799
  |> finalize
12065
5f7f44d5e3dd theorem(_i): locale atts;
wenzelm
parents: 12055
diff changeset
   800
  |> Seq.map finish_global;
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   801
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   802
6896
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   803
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   804
(** blocks **)
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   805
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   806
(* begin_block *)
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   807
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   808
fun begin_block state =
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   809
  state
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   810
  |> assert_forward
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   811
  |> new_block
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   812
  |> open_block;
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   813
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   814
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   815
(* end_block *)
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   816
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   817
fun end_block state =
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   818
  state
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   819
  |> assert_forward
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   820
  |> close_block
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   821
  |> assert_current_goal false
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   822
  |> close_block
6932
77c14313af51 propp: 'concl' patterns;
wenzelm
parents: 6896
diff changeset
   823
  |> transfer_facts state;
6896
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   824
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   825
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   826
(* next_block *)
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   827
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   828
fun next_block state =
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   829
  state
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   830
  |> assert_forward
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   831
  |> close_block
8718
3ba75b7e1168 next_block: reset_facts;
wenzelm
parents: 8670
diff changeset
   832
  |> new_block
3ba75b7e1168 next_block: reset_facts;
wenzelm
parents: 8670
diff changeset
   833
  |> reset_facts;
6896
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   834
4bdc3600ddae close_block: transfer_used_names;
wenzelm
parents: 6891
diff changeset
   835
5820
ff3c82b47603 Proof states and methods.
wenzelm
parents:
diff changeset
   836
end;
8152
ce3387fafebb replaced FIRSTGOAL by FINDGOAL (backtracking!);
wenzelm
parents: 8095
diff changeset
   837
ce3387fafebb replaced FIRSTGOAL by FINDGOAL (backtracking!);
wenzelm
parents: 8095
diff changeset
   838
structure BasicProof: BASIC_PROOF = Proof;
ce3387fafebb replaced FIRSTGOAL by FINDGOAL (backtracking!);
wenzelm
parents: 8095
diff changeset
   839
open BasicProof;