src/Pure/Isar/isar_thy.ML
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(*  Title:      Pure/Isar/isar_thy.ML
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    ID:         $Id$
95b619c7289b Derived theory operations.
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    Author:     Markus Wenzel, TU Muenchen
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    License:    GPL (GNU GENERAL PUBLIC LICENSE)
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Pure/Isar derived theory operations.
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*)
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signature ISAR_THY =
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sig
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  val add_header: Comment.text -> Toplevel.transition -> Toplevel.transition
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  val add_chapter: Comment.text -> theory -> theory
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  val add_section: Comment.text -> theory -> theory
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  val add_subsection: Comment.text -> theory -> theory
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  val add_subsubsection: Comment.text -> theory -> theory
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  val add_text: Comment.text -> theory -> theory
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  val add_text_raw: Comment.text -> theory -> theory
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  val add_sect: Comment.text -> ProofHistory.T -> ProofHistory.T
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  val add_subsect: Comment.text -> ProofHistory.T -> ProofHistory.T
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  val add_subsubsect: Comment.text -> ProofHistory.T -> ProofHistory.T
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  val add_txt: Comment.text -> ProofHistory.T -> ProofHistory.T
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  val add_txt_raw: Comment.text -> ProofHistory.T -> ProofHistory.T
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  val global_path: Comment.text -> theory -> theory
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  val local_path: Comment.text -> theory -> theory
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  val hide_space: (string * xstring list) * Comment.text -> theory -> theory
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  val hide_space_i: (string * string list) * Comment.text -> theory -> theory
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  val add_classes: (bclass * xclass list) list * Comment.text -> theory -> theory
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  val add_classes_i: (bclass * class list) list * Comment.text  -> theory -> theory
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  val add_classrel: (xclass * xclass) * Comment.text -> theory -> theory
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  val add_classrel_i: (class * class) * Comment.text -> theory -> theory
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  val add_defsort: string * Comment.text -> theory -> theory
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  val add_defsort_i: sort * Comment.text -> theory -> theory
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  val add_nonterminals: (bstring * Comment.text) list -> theory -> theory
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  val add_tyabbrs: ((bstring * string list * string * mixfix) * Comment.text) list
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    -> theory -> theory
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  val add_tyabbrs_i: ((bstring * string list * typ * mixfix) * Comment.text) list
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    -> theory -> theory
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  val add_arities: ((xstring * string list * string) * Comment.text) list -> theory -> theory
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  val add_arities_i: ((string * sort list * sort) * Comment.text) list -> theory -> theory
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  val add_typedecl: (bstring * string list * mixfix) * Comment.text -> theory -> theory
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  val add_consts: ((bstring * string * mixfix) * Comment.text) list -> theory -> theory
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  val add_consts_i: ((bstring * typ * mixfix) * Comment.text) list -> theory -> theory
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  val add_modesyntax: string * bool -> ((bstring * string * mixfix) * Comment.text) list
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    -> theory -> theory
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  val add_modesyntax_i: string * bool -> ((bstring * typ * mixfix) * Comment.text) list
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    -> theory -> theory
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  val add_trrules: ((xstring * string) Syntax.trrule * Comment.text) list -> theory -> theory
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  val add_trrules_i: (Syntax.ast Syntax.trrule * Comment.text) list -> theory -> theory
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  val add_judgment: (bstring * string * mixfix) * Comment.text -> theory -> theory
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  val add_judgment_i: (bstring * typ * mixfix) * Comment.text -> theory -> theory
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  val add_axioms: (((bstring * string) * Args.src list) * Comment.text) list -> theory -> theory
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  val add_axioms_i: (((bstring * term) * theory attribute list) * Comment.text) list
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    -> theory -> theory
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  val add_defs: bool * (((bstring * string) * Args.src list) * Comment.text) list
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    -> theory -> theory
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  val add_defs_i: bool * (((bstring * term) * theory attribute list) * Comment.text) list
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    -> theory -> theory
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  val add_constdefs: (((bstring * string * mixfix) * Comment.text) * (string * Comment.text)) list
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    -> theory -> theory
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  val add_constdefs_i: (((bstring * typ * mixfix) * Comment.text) * (term * Comment.text)) list
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    -> theory -> theory
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  val apply_theorems: (xstring * Args.src list) list -> theory -> theory * thm list
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  val apply_theorems_i: (thm * theory attribute list) list -> theory -> theory * thm list
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  val declare_theorems: (xstring * Args.src list) list * Comment.text -> theory -> theory
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  val declare_theorems_i: (thm * theory attribute list) list * Comment.text -> theory -> theory
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  val have_theorems:
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    (((bstring * Args.src list) * (xstring * Args.src list) list) * Comment.text) list
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    -> theory -> theory
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  val have_theorems_i: (((bstring * theory attribute list) * (thm * theory attribute list) list)
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    * Comment.text) list -> theory -> theory
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  val have_lemmas:
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    (((bstring * Args.src list) * (xstring * Args.src list) list) * Comment.text) list
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    -> theory -> theory
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  val have_lemmas_i: (((bstring * theory attribute list) * (thm * theory attribute list) list)
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    * Comment.text) list -> theory -> theory
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  val have_facts: (((string * Args.src list) * (string * Args.src list) list) * Comment.text) list
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    -> ProofHistory.T -> ProofHistory.T
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  val have_facts_i: (((string * Proof.context attribute list) *
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    (thm * Proof.context attribute list) list) * Comment.text) list
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    -> ProofHistory.T -> ProofHistory.T
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  val from_facts: ((string * Args.src list) list * Comment.text) list
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    -> ProofHistory.T -> ProofHistory.T
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  val from_facts_i: ((thm * Proof.context attribute list) list * Comment.text) list
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    -> ProofHistory.T -> ProofHistory.T
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  val with_facts: ((string * Args.src list) list * Comment.text) list
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    -> ProofHistory.T -> ProofHistory.T
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  val with_facts_i: ((thm * Proof.context attribute list) list * Comment.text) list
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    -> ProofHistory.T -> ProofHistory.T
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  val chain: Comment.text -> ProofHistory.T -> ProofHistory.T
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  val fix: ((string list * string option) * Comment.text) list -> ProofHistory.T -> ProofHistory.T
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  val fix_i: ((string list * typ option) * Comment.text) list -> ProofHistory.T -> ProofHistory.T
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  val let_bind: ((string list * string) * Comment.text) list -> ProofHistory.T -> ProofHistory.T
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  val let_bind_i: ((term list * term) * Comment.text) list -> ProofHistory.T -> ProofHistory.T
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  val invoke_case: (string * Args.src list) * Comment.text -> ProofHistory.T -> ProofHistory.T
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  val invoke_case_i: (string * Proof.context attribute list) * Comment.text
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    -> ProofHistory.T -> ProofHistory.T
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  val theorem: ((bstring * Args.src list) * (string * (string list * string list)))
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    * Comment.text -> bool -> theory -> ProofHistory.T
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  val theorem_i: ((bstring * theory attribute list) * (term * (term list * term list)))
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    * Comment.text -> bool -> theory -> ProofHistory.T
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  val lemma: ((bstring * Args.src list) * (string * (string list * string list)))
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    * Comment.text -> bool -> theory -> ProofHistory.T
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  val lemma_i: ((bstring * theory attribute list) * (term * (term list * term list)))
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    * Comment.text -> bool -> theory -> ProofHistory.T
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  val assume: (((string * Args.src list) * (string * (string list * string list)) list)
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    * Comment.text) list -> ProofHistory.T -> ProofHistory.T
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  val assume_i: (((string * Proof.context attribute list) * (term * (term list * term list)) list)
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    * Comment.text) list -> ProofHistory.T -> ProofHistory.T
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  val presume: (((string * Args.src list) * (string * (string list * string list)) list)
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    * Comment.text) list -> ProofHistory.T -> ProofHistory.T
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  val presume_i: (((string * Proof.context attribute list) * (term * (term list * term list)) list)
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    * Comment.text) list -> ProofHistory.T -> ProofHistory.T
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  val local_def: ((string * Args.src list) * (string * (string * string list)))
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    * Comment.text -> ProofHistory.T -> ProofHistory.T
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  val local_def_i: ((string * Args.src list) * (string * (term * term list)))
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    * Comment.text -> ProofHistory.T -> ProofHistory.T
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  val show: ((string * Args.src list) * (string * (string list * string list)))
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    * Comment.text -> bool -> ProofHistory.T -> ProofHistory.T
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  val show_i: ((string * Proof.context attribute list) * (term * (term list * term list)))
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    * Comment.text -> bool -> ProofHistory.T -> ProofHistory.T
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  val have: ((string * Args.src list) * (string * (string list * string list)))
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    * Comment.text -> ProofHistory.T -> ProofHistory.T
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  val have_i: ((string * Proof.context attribute list) * (term * (term list * term list)))
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    * Comment.text -> ProofHistory.T -> ProofHistory.T
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  val thus: ((string * Args.src list) * (string * (string list * string list)))
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    * Comment.text -> bool -> ProofHistory.T -> ProofHistory.T
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  val thus_i: ((string * Proof.context attribute list) * (term * (term list * term list)))
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    * Comment.text -> bool -> ProofHistory.T -> ProofHistory.T
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  val hence: ((string * Args.src list) * (string * (string list * string list)))
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    * Comment.text -> ProofHistory.T -> ProofHistory.T
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  val hence_i: ((string * Proof.context attribute list) * (term * (term list * term list)))
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    * Comment.text -> ProofHistory.T -> ProofHistory.T
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  val begin_block: Comment.text -> ProofHistory.T -> ProofHistory.T
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  val next_block: Comment.text -> ProofHistory.T -> ProofHistory.T
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  val end_block: Comment.text -> ProofHistory.T -> ProofHistory.T
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  val defer: int option * Comment.text -> ProofHistory.T -> ProofHistory.T
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  val prefer: int * Comment.text -> ProofHistory.T -> ProofHistory.T
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  val apply: Method.text * Comment.text -> ProofHistory.T -> ProofHistory.T
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  val apply_end: Method.text * Comment.text -> ProofHistory.T -> ProofHistory.T
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  val proof: (Comment.interest * (Method.text * Comment.interest) option) * Comment.text
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    -> ProofHistory.T -> ProofHistory.T
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  val qed: (Method.text * Comment.interest) option * Comment.text
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    -> Toplevel.transition -> Toplevel.transition
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  val terminal_proof: ((Method.text * Comment.interest) * (Method.text * Comment.interest) option)
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    * Comment.text -> Toplevel.transition -> Toplevel.transition
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  val default_proof: Comment.text -> Toplevel.transition -> Toplevel.transition
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  val immediate_proof: Comment.text -> Toplevel.transition -> Toplevel.transition
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  val done_proof: Comment.text -> Toplevel.transition -> Toplevel.transition
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  val skip_proof: Comment.text -> Toplevel.transition -> Toplevel.transition
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  val forget_proof: Comment.text -> Toplevel.transition -> Toplevel.transition
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  val get_thmss: (string * Args.src list) list -> Proof.state -> thm list
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  val also: ((string * Args.src list) list * Comment.interest) option * Comment.text
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    -> Toplevel.transition -> Toplevel.transition
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  val also_i: (thm list * Comment.interest) option * Comment.text
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    -> Toplevel.transition -> Toplevel.transition
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  val finally: ((string * Args.src list) list * Comment.interest) option * Comment.text
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    -> Toplevel.transition -> Toplevel.transition
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  val finally_i: (thm list * Comment.interest) option * Comment.text
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    -> Toplevel.transition -> Toplevel.transition
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  val moreover: Comment.text -> Toplevel.transition -> Toplevel.transition
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  val ultimately: Comment.text -> Toplevel.transition -> Toplevel.transition
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  val parse_ast_translation: string * Comment.text -> theory -> theory
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  val parse_translation: string * Comment.text -> theory -> theory
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  val print_translation: string * Comment.text -> theory -> theory
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  val typed_print_translation: string * Comment.text -> theory -> theory
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  val print_ast_translation: string * Comment.text -> theory -> theory
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  val token_translation: string * Comment.text -> theory -> theory
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  val method_setup: (bstring * string * string) * Comment.text -> theory -> theory
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  val add_oracle: (bstring * string) * Comment.text -> theory -> theory
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  val begin_theory: string -> string list -> (string * bool) list -> theory
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  val end_theory: theory -> theory
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  val kill_theory: string -> unit
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  val theory: string * string list * (string * bool) list
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    -> Toplevel.transition -> Toplevel.transition
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  val init_context: ('a -> unit) -> 'a -> Toplevel.transition -> Toplevel.transition
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  val context: string -> Toplevel.transition -> Toplevel.transition
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end;
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structure IsarThy: ISAR_THY =
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struct
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95b619c7289b Derived theory operations.
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(** derived theory and proof operations **)
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(* markup commands *)
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fun add_header comment =
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  Toplevel.keep (fn state => if Toplevel.is_toplevel state then () else raise Toplevel.UNDEF);
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fun add_text _ x = x;
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fun add_text_raw _ x = x;
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fun add_heading add present txt thy =
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  (Context.setmp (Some thy) present (Comment.string_of txt); add txt thy);
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val add_chapter = add_heading add_text Present.section;
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val add_section = add_heading add_text Present.section;
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val add_subsection = add_heading add_text Present.subsection;
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val add_subsubsection = add_heading add_text Present.subsubsection;
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fun add_txt (_: Comment.text) = ProofHistory.apply I;
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val add_txt_raw = add_txt;
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val add_sect = add_txt;
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val add_subsect = add_txt;
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val add_subsubsect = add_txt;
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(* name spaces *)
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fun global_path comment_ignore = PureThy.global_path;
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fun local_path comment_ignore = PureThy.local_path;
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local
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val kinds =
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 [(Sign.classK, can o Sign.certify_class),
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  (Sign.typeK, fn sg => fn c =>
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    can (Sign.certify_tycon sg) c orelse can (Sign.certify_tyabbr sg) c),
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  (Sign.constK, can o Sign.certify_const)];
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fun gen_hide intern ((kind, xnames), comment_ignore) thy =
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  (case assoc (kinds, kind) of
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    Some check =>
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      let
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        val sg = Theory.sign_of thy;
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        val names = map (intern sg kind) xnames;
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        val bads = filter_out (check sg) names;
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      in
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        if null bads then Theory.hide_space_i (kind, names) thy
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        else error ("Attempt to hide undeclared item(s): " ^ commas_quote bads)
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      end
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  | None => error ("Bad name space specification: " ^ quote kind));
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19ab913a6a6a hide: check declared;
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in
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fun hide_space x = gen_hide Sign.intern x;
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fun hide_space_i x = gen_hide (K (K I)) x;
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end;
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ef7efded8fdc global/local_path: comment;
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(* signature and syntax *)
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val add_classes = Theory.add_classes o Comment.ignore;
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val add_classes_i = Theory.add_classes_i o Comment.ignore;
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val add_classrel = Theory.add_classrel o single o Comment.ignore;
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val add_classrel_i = Theory.add_classrel_i o single o Comment.ignore;
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val add_defsort = Theory.add_defsort o Comment.ignore;
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val add_defsort_i = Theory.add_defsort_i o Comment.ignore;
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val add_nonterminals = Theory.add_nonterminals o map Comment.ignore;
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val add_tyabbrs = Theory.add_tyabbrs o map Comment.ignore;
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val add_tyabbrs_i = Theory.add_tyabbrs_i o map Comment.ignore;
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val add_arities = Theory.add_arities o map Comment.ignore;
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val add_arities_i = Theory.add_arities_i o map Comment.ignore;
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val add_typedecl = PureThy.add_typedecls o single o Comment.ignore;
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val add_consts = Theory.add_consts o map Comment.ignore;
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val add_consts_i = Theory.add_consts_i o map Comment.ignore;
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fun add_modesyntax mode = Theory.add_modesyntax mode o map Comment.ignore;
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fun add_modesyntax_i mode = Theory.add_modesyntax_i mode o map Comment.ignore;
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val add_trrules = Theory.add_trrules o map Comment.ignore;
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val add_trrules_i = Theory.add_trrules_i o map Comment.ignore;
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d67db92897df add_judgment;
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val add_judgment = AutoBind.add_judgment o Comment.ignore;
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val add_judgment_i = AutoBind.add_judgment_i o Comment.ignore;
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(* axioms and defs *)
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fun add_axms f args thy =
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  f (map (fn (x, srcs) => (x, map (Attrib.global_attribute thy) srcs)) args) thy;
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val add_axioms = add_axms (#1 oo PureThy.add_axioms) o map Comment.ignore;
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val add_axioms_i = (#1 oo PureThy.add_axioms_i) o map Comment.ignore;
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fun add_defs (x, args) = add_axms (#1 oo PureThy.add_defs x) (map Comment.ignore args);
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fun add_defs_i (x, args) = (#1 oo PureThy.add_defs_i x) (map Comment.ignore args);
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(* constdefs *)
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fun gen_add_constdefs consts defs args thy =
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  thy
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  |> consts (map (Comment.ignore o fst) args)
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  |> defs (false, map (fn (((c, _, mx), _), (s, _)) =>
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    (((Thm.def_name (Syntax.const_name c mx), s), []), Comment.none)) args);
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fun add_constdefs args = gen_add_constdefs Theory.add_consts add_defs args;
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fun add_constdefs_i args = gen_add_constdefs Theory.add_consts_i add_defs_i args;
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66f4bde4c6e7 added have_theorems, have_lemmas, have_facts;
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(* theorems *)
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fun prep_thmss get attrib = map (fn ((name, more_srcs), th_srcs) =>
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  ((name, map attrib more_srcs), map (fn (s, srcs) => (get s, map attrib srcs)) th_srcs));
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fun flat_unnamed (x, ys) = (x, flat (map snd ys));
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fun global_have_thmss kind f args thy =
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  let
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    val args' = prep_thmss (PureThy.get_thms thy) (Attrib.global_attribute thy) args
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    val (thy', named_thmss) = f args' thy;
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    fun present (name, thms) = Present.results kind name thms;
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  in
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    if kind = "" then ()
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    else Context.setmp (Some thy') (fn () => seq present named_thmss) ();
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    (thy', named_thmss)
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  end;
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fun local_have_thmss f args state =
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  let
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    val args' = prep_thmss (ProofContext.get_thms (Proof.context_of state))
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      (Attrib.local_attribute (Proof.theory_of state)) args;
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  in f args' state end;
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fun gen_have_thmss_i f args = f (map (fn ((name, more_atts), th_atts) =>
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  ((name, more_atts), map (apfst single) th_atts)) args);
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fun apply_theorems th_srcs =
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  flat_unnamed o global_have_thmss "" (PureThy.have_thmss []) [(("", []), th_srcs)];
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fun apply_theorems_i th_srcs =
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  flat_unnamed o gen_have_thmss_i (PureThy.have_thmss []) [(("", []), th_srcs)];
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val declare_theorems = #1 oo (apply_theorems o Comment.ignore);
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val declare_theorems_i = #1 oo (apply_theorems_i o Comment.ignore);
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val have_theorems =
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  #1 oo (global_have_thmss "theorems" (PureThy.have_thmss []) o map Comment.ignore);
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val have_theorems_i =
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  #1 oo (gen_have_thmss_i (PureThy.have_thmss []) o map Comment.ignore);
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val have_lemmas =
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  #1 oo (global_have_thmss "lemmas" (PureThy.have_thmss [Drule.tag_lemma]) o map Comment.ignore);
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val have_lemmas_i =
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  #1 oo (gen_have_thmss_i (PureThy.have_thmss [Drule.tag_lemma]) o map Comment.ignore);
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val have_facts = ProofHistory.apply o local_have_thmss Proof.have_thmss o map Comment.ignore;
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val have_facts_i = ProofHistory.apply o gen_have_thmss_i Proof.have_thmss o map Comment.ignore;
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(* forward chaining *)
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fun gen_from_facts f args = ProofHistory.apply (Proof.chain o f (map (pair ("", [])) args));
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val from_facts = gen_from_facts (local_have_thmss Proof.have_thmss) o map Comment.ignore;
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val from_facts_i = gen_from_facts (gen_have_thmss_i Proof.have_thmss) o map Comment.ignore;
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val with_facts = gen_from_facts (local_have_thmss Proof.with_thmss) o map Comment.ignore;
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val with_facts_i = gen_from_facts (gen_have_thmss_i Proof.with_thmss) o map Comment.ignore;
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fun chain comment_ignore = ProofHistory.apply Proof.chain;
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(* context *)
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val fix = ProofHistory.apply o Proof.fix o map Comment.ignore;
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val fix_i = ProofHistory.apply o Proof.fix_i o map Comment.ignore;
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val let_bind = ProofHistory.apply o Proof.let_bind o map Comment.ignore;
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val let_bind_i = ProofHistory.apply o Proof.let_bind_i o map Comment.ignore;
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fun invoke_case ((name, src), comment_ignore) = ProofHistory.apply (fn state =>
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  Proof.invoke_case (name, map (Attrib.local_attribute (Proof.theory_of state)) src) state);
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val invoke_case_i = ProofHistory.apply o Proof.invoke_case o Comment.ignore;
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(* local results *)
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local
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fun pretty_result {kind, name, thm} =
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  Pretty.block [Pretty.str (kind ^ (if name = "" then "" else " " ^ name) ^ ":"),
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    Pretty.fbrk, Proof.pretty_thm thm];
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fun pretty_rule s thm =
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  Pretty.block [Pretty.str (s ^ " to solve goal by exported rule:"),
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    Pretty.fbrk, Proof.pretty_thm thm];
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in
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val print_result = Pretty.writeln o pretty_result;
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fun cond_print_result_rule int =
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  if int then (print_result, priority o Pretty.string_of o pretty_rule "Attempt")
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  else (K (), K ());
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fun proof'' f = Toplevel.proof' (f o cond_print_result_rule);
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fun check_goal false state = state
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  | check_goal true state =
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      let
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        val rule = ref (None: thm option);
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        fun warn exn =
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          (["Problem! Local statement will fail to solve any pending goal"] @
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          (case exn of None => [] | Some e => [Toplevel.exn_message e]) @
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          (case ! rule of None => [] | Some thm =>
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   392
            [Pretty.string_of (pretty_rule "Failed attempt" thm)]))
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   393
          |> cat_lines |> warning;
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        val check =
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   395
          (fn () => Seq.pull (SkipProof.local_skip_proof (K (), fn thm => rule := Some thm) state))
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          |> Library.setmp quick_and_dirty true
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          |> Library.transform_error;
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   398
        val result = (check (), None) handle Interrupt => raise Interrupt | e => (None, Some e);
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      in (case result of (Some _, None) => () | (_, exn) => warn exn); state end;
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end;
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(* statements *)
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local
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   408
fun global_statement f ((name, src), s) int thy =
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   409
  ProofHistory.init (Toplevel.undo_limit int)
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   410
    (f name (map (Attrib.global_attribute thy) src) s thy);
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   412
fun global_statement_i f ((name, atts), t) int thy =
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   413
  ProofHistory.init (Toplevel.undo_limit int) (f name atts t thy);
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392333eb31cb added thus, hence;
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   415
fun local_statement' f g ((name, src), s) int = ProofHistory.apply (fn state =>
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   416
  f name (map (Attrib.local_attribute (Proof.theory_of state)) src) s int (g state));
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fun local_statement_i' f g ((name, atts), t) int =
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   419
  ProofHistory.apply (f name atts t int o g);
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fun local_statement f g args = local_statement' (K ooo f) g args ();
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fun local_statement_i f g args = local_statement_i' (K ooo f) g args ();
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   424
fun multi_local_attribute state ((name, src), s) =
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   425
  ((name, map (Attrib.local_attribute (Proof.theory_of state)) src), s);
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5a241706d9b3 present chapter;
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7271
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   427
fun multi_statement f args = ProofHistory.apply (fn state =>
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   428
  f (map (multi_local_attribute state) args) state);
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442456b2a8bb assume: multiple args;
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   430
fun multi_statement_i f args = ProofHistory.apply (f args);
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442456b2a8bb assume: multiple args;
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in
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   434
val theorem     = global_statement Proof.theorem o Comment.ignore;
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   435
val theorem_i   = global_statement_i Proof.theorem_i o Comment.ignore;
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   436
val lemma       = global_statement Proof.lemma o Comment.ignore;
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   437
val lemma_i     = global_statement_i Proof.lemma_i o Comment.ignore;
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   438
val assume      = multi_statement Proof.assume o map Comment.ignore;
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   439
val assume_i    = multi_statement_i Proof.assume_i o map Comment.ignore;
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   440
val presume     = multi_statement Proof.presume o map Comment.ignore;
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   441
val presume_i   = multi_statement_i Proof.presume_i o map Comment.ignore;
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   442
val local_def   = local_statement LocalDefs.def I o Comment.ignore;
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   443
val local_def_i = local_statement LocalDefs.def_i I o Comment.ignore;
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808e9dbc68c4 show/thus: check_goal;
wenzelm
parents: 10464
diff changeset
   444
val show        = local_statement' (Proof.show check_goal Seq.single) I o Comment.ignore;
808e9dbc68c4 show/thus: check_goal;
wenzelm
parents: 10464
diff changeset
   445
val show_i      = local_statement_i' (Proof.show_i check_goal Seq.single) I o Comment.ignore;
7176
a329a37ed91a local goals: after_qed;
wenzelm
parents: 7172
diff changeset
   446
val have        = local_statement (Proof.have Seq.single) I o Comment.ignore;
a329a37ed91a local goals: after_qed;
wenzelm
parents: 7172
diff changeset
   447
val have_i      = local_statement_i (Proof.have_i Seq.single) I o Comment.ignore;
10935
808e9dbc68c4 show/thus: check_goal;
wenzelm
parents: 10464
diff changeset
   448
val thus        = local_statement' (Proof.show check_goal Seq.single) Proof.chain o Comment.ignore;
808e9dbc68c4 show/thus: check_goal;
wenzelm
parents: 10464
diff changeset
   449
val thus_i      = local_statement_i' (Proof.show_i check_goal Seq.single) Proof.chain o Comment.ignore;
7176
a329a37ed91a local goals: after_qed;
wenzelm
parents: 7172
diff changeset
   450
val hence       = local_statement (Proof.have Seq.single) Proof.chain o Comment.ignore;
a329a37ed91a local goals: after_qed;
wenzelm
parents: 7172
diff changeset
   451
val hence_i     = local_statement_i (Proof.have_i Seq.single) Proof.chain o Comment.ignore;
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   452
7271
442456b2a8bb assume: multiple args;
wenzelm
parents: 7242
diff changeset
   453
end;
442456b2a8bb assume: multiple args;
wenzelm
parents: 7242
diff changeset
   454
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   455
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   456
(* blocks *)
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   457
9032
ad0b9f048bbf block commands: marginal comment;
wenzelm
parents: 8966
diff changeset
   458
fun begin_block comment_ignore = ProofHistory.apply Proof.begin_block;
ad0b9f048bbf block commands: marginal comment;
wenzelm
parents: 8966
diff changeset
   459
fun next_block comment_ignore = ProofHistory.apply Proof.next_block;
ad0b9f048bbf block commands: marginal comment;
wenzelm
parents: 8966
diff changeset
   460
fun end_block comment_ignore = ProofHistory.applys Proof.end_block;
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   461
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   462
8165
651b006d7eb8 added defer, prefer;
wenzelm
parents: 8090
diff changeset
   463
(* shuffle state *)
651b006d7eb8 added defer, prefer;
wenzelm
parents: 8090
diff changeset
   464
8236
df3f983f5858 apply: observe facts;
wenzelm
parents: 8227
diff changeset
   465
fun shuffle meth i = Method.refine (Method.Basic (K (meth i))) o Proof.assert_no_chain;
8204
b2a4a3d86b73 tuned prefer/defer;
wenzelm
parents: 8165
diff changeset
   466
8681
957a5fe9b212 apply etc.: comments;
wenzelm
parents: 8615
diff changeset
   467
fun defer (i, comment_ignore) = ProofHistory.applys (shuffle Method.defer i);
957a5fe9b212 apply etc.: comments;
wenzelm
parents: 8615
diff changeset
   468
fun prefer (i, comment_ignore) = ProofHistory.applys (shuffle Method.prefer i);
8165
651b006d7eb8 added defer, prefer;
wenzelm
parents: 8090
diff changeset
   469
651b006d7eb8 added defer, prefer;
wenzelm
parents: 8090
diff changeset
   470
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   471
(* backward steps *)
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   472
8881
0467dd0d66ff 'apply' consumes facts;
wenzelm
parents: 8804
diff changeset
   473
fun apply (m, comment_ignore) = ProofHistory.applys
0467dd0d66ff 'apply' consumes facts;
wenzelm
parents: 8804
diff changeset
   474
  (Seq.map (Proof.goal_facts (K [])) o Method.refine m o Proof.assert_backward);
0467dd0d66ff 'apply' consumes facts;
wenzelm
parents: 8804
diff changeset
   475
0467dd0d66ff 'apply' consumes facts;
wenzelm
parents: 8804
diff changeset
   476
fun apply_end (m, comment_ignore) = ProofHistory.applys
0467dd0d66ff 'apply' consumes facts;
wenzelm
parents: 8804
diff changeset
   477
  (Method.refine_end m o Proof.assert_forward);
6728
b51b25db7bc6 added formal comment arguments almost everywhere (still ignored);
wenzelm
parents: 6688
diff changeset
   478
7002
01a4e15ee253 more marg_comments;
wenzelm
parents: 6986
diff changeset
   479
val proof = ProofHistory.applys o Method.proof o
01a4e15ee253 more marg_comments;
wenzelm
parents: 6986
diff changeset
   480
  apsome Comment.ignore_interest o Comment.ignore_interest' o Comment.ignore;
6404
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   481
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   482
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   483
(* local endings *)
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   484
6728
b51b25db7bc6 added formal comment arguments almost everywhere (still ignored);
wenzelm
parents: 6688
diff changeset
   485
val local_qed =
8966
916966f68907 added "done" proof;
wenzelm
parents: 8897
diff changeset
   486
  proof'' o (ProofHistory.applys oo Method.local_qed true) o apsome Comment.ignore_interest;
6728
b51b25db7bc6 added formal comment arguments almost everywhere (still ignored);
wenzelm
parents: 6688
diff changeset
   487
6937
d9e3e2b30bee added export_chain;
wenzelm
parents: 6904
diff changeset
   488
fun ignore_interests (x, y) = (Comment.ignore_interest x, apsome Comment.ignore_interest y);
d9e3e2b30bee added export_chain;
wenzelm
parents: 6904
diff changeset
   489
6688
f33c89103fb4 cleaned comments;
wenzelm
parents: 6650
diff changeset
   490
val local_terminal_proof =
6937
d9e3e2b30bee added export_chain;
wenzelm
parents: 6904
diff changeset
   491
  proof'' o (ProofHistory.applys oo Method.local_terminal_proof) o ignore_interests;
6728
b51b25db7bc6 added formal comment arguments almost everywhere (still ignored);
wenzelm
parents: 6688
diff changeset
   492
8966
916966f68907 added "done" proof;
wenzelm
parents: 8897
diff changeset
   493
val local_default_proof = proof'' (ProofHistory.applys o Method.local_default_proof);
6904
4125d6b6d8f9 removed proof history nesting commands (not useful);
wenzelm
parents: 6890
diff changeset
   494
val local_immediate_proof = proof'' (ProofHistory.applys o Method.local_immediate_proof);
4125d6b6d8f9 removed proof history nesting commands (not useful);
wenzelm
parents: 6890
diff changeset
   495
val local_skip_proof = proof'' (ProofHistory.applys o SkipProof.local_skip_proof);
8966
916966f68907 added "done" proof;
wenzelm
parents: 8897
diff changeset
   496
val local_done_proof = proof'' (ProofHistory.applys o Method.local_done_proof);
6404
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   497
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   498
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   499
(* global endings *)
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   500
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   501
fun global_result finish = Toplevel.proof_to_theory (fn prf =>
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   502
  let
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   503
    val state = ProofHistory.current prf;
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   504
    val _ = if Proof.at_bottom state then () else raise Toplevel.UNDEF;
7572
6e6dafacbc28 present results;
wenzelm
parents: 7506
diff changeset
   505
    val (thy, res as {kind, name, thm}) = finish state;
6e6dafacbc28 present results;
wenzelm
parents: 7506
diff changeset
   506
  in print_result res; Context.setmp (Some thy) (Present.result kind name) thm; thy end);
6404
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   507
8966
916966f68907 added "done" proof;
wenzelm
parents: 8897
diff changeset
   508
val global_qed = global_result o Method.global_qed true o apsome Comment.ignore_interest;
6937
d9e3e2b30bee added export_chain;
wenzelm
parents: 6904
diff changeset
   509
val global_terminal_proof = global_result o Method.global_terminal_proof o ignore_interests;
8966
916966f68907 added "done" proof;
wenzelm
parents: 8897
diff changeset
   510
val global_default_proof = global_result Method.global_default_proof;
6404
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   511
val global_immediate_proof = global_result Method.global_immediate_proof;
6888
d0c68ebdabc5 skip_proof feature 'sorry' (for quick_and_dirty mode only);
wenzelm
parents: 6885
diff changeset
   512
val global_skip_proof = global_result SkipProof.global_skip_proof;
8966
916966f68907 added "done" proof;
wenzelm
parents: 8897
diff changeset
   513
val global_done_proof = global_result Method.global_done_proof;
6404
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   514
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   515
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   516
(* common endings *)
2daaf2943c79 common qed and end of proofs;
wenzelm
parents: 6371
diff changeset
   517
7002
01a4e15ee253 more marg_comments;
wenzelm
parents: 6986
diff changeset
   518
fun qed (meth, comment) = local_qed meth o global_qed meth;
01a4e15ee253 more marg_comments;
wenzelm
parents: 6986
diff changeset
   519
fun terminal_proof (meths, comment) = local_terminal_proof meths o global_terminal_proof meths;
8966
916966f68907 added "done" proof;
wenzelm
parents: 8897
diff changeset
   520
fun default_proof comment = local_default_proof o global_default_proof;
7002
01a4e15ee253 more marg_comments;
wenzelm
parents: 6986
diff changeset
   521
fun immediate_proof comment = local_immediate_proof o global_immediate_proof;
8966
916966f68907 added "done" proof;
wenzelm
parents: 8897
diff changeset
   522
fun done_proof comment = local_done_proof o global_done_proof;
7002
01a4e15ee253 more marg_comments;
wenzelm
parents: 6986
diff changeset
   523
fun skip_proof comment = local_skip_proof o global_skip_proof;
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   524
8210
ca3997312f47 added forget_proof;
wenzelm
parents: 8204
diff changeset
   525
fun forget_proof comment = Toplevel.proof_to_theory (Proof.theory_of o ProofHistory.current);
ca3997312f47 added forget_proof;
wenzelm
parents: 8204
diff changeset
   526
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   527
6774
dec73900168b added also, finally;
wenzelm
parents: 6732
diff changeset
   528
(* calculational proof commands *)
dec73900168b added also, finally;
wenzelm
parents: 6732
diff changeset
   529
6879
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   530
local
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   531
7417
70c1d3eac214 fix: common constraints;
wenzelm
parents: 7353
diff changeset
   532
fun cond_print_calc int thms =
70c1d3eac214 fix: common constraints;
wenzelm
parents: 7353
diff changeset
   533
  if int then Pretty.writeln (Pretty.big_list "calculation:" (map Proof.pretty_thm thms))
6774
dec73900168b added also, finally;
wenzelm
parents: 6732
diff changeset
   534
  else ();
dec73900168b added also, finally;
wenzelm
parents: 6732
diff changeset
   535
dec73900168b added also, finally;
wenzelm
parents: 6732
diff changeset
   536
fun proof''' f = Toplevel.proof' (f o cond_print_calc);
dec73900168b added also, finally;
wenzelm
parents: 6732
diff changeset
   537
6879
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   538
fun gen_calc get f (args, _) prt state =
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   539
  f (apsome (fn (srcs, _) => get srcs state) args) prt state;
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   540
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   541
in
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   542
9193
4f4936582889 have_theorems etc.: handle multiple lists of arguments;
wenzelm
parents: 9032
diff changeset
   543
fun get_thmss srcs = Proof.the_facts o local_have_thmss Proof.have_thmss [(("", []), srcs)];
7012
ae9dac5af9d1 improved print_thms;
wenzelm
parents: 7002
diff changeset
   544
fun get_thmss_i thms _ = thms;
ae9dac5af9d1 improved print_thms;
wenzelm
parents: 7002
diff changeset
   545
6879
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   546
fun also x = proof''' (ProofHistory.applys o gen_calc get_thmss Calculation.also x);
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   547
fun also_i x = proof''' (ProofHistory.applys o gen_calc get_thmss_i Calculation.also x);
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   548
fun finally x = proof''' (ProofHistory.applys o gen_calc get_thmss Calculation.finally x);
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   549
fun finally_i x = proof''' (ProofHistory.applys o gen_calc get_thmss_i Calculation.finally x);
8562
ce0e2b8e8844 added 'moreover' command;
wenzelm
parents: 8466
diff changeset
   550
fun moreover comment = proof''' (ProofHistory.apply o Calculation.moreover);
8588
b7c3f264f8ac added 'ultimately';
wenzelm
parents: 8562
diff changeset
   551
fun ultimately comment = proof''' (ProofHistory.apply o Calculation.ultimately);
6879
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   552
70f8c0c34b8d added with_facts(_i);
wenzelm
parents: 6850
diff changeset
   553
end;
6774
dec73900168b added also, finally;
wenzelm
parents: 6732
diff changeset
   554
dec73900168b added also, finally;
wenzelm
parents: 6732
diff changeset
   555
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   556
(* translation functions *)
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   557
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   558
val parse_ast_translation =
9590
52e71612e42f added declare_theorems(_i);
wenzelm
parents: 9466
diff changeset
   559
  Context.use_let "val parse_ast_translation: (string * (Syntax.ast list -> Syntax.ast)) list"
9273
798673f65f02 allow comment in more commands;
wenzelm
parents: 9193
diff changeset
   560
    "Theory.add_trfuns (parse_ast_translation, [], [], [])" o Comment.ignore;
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   561
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   562
val parse_translation =
9590
52e71612e42f added declare_theorems(_i);
wenzelm
parents: 9466
diff changeset
   563
  Context.use_let "val parse_translation: (string * (term list -> term)) list"
9273
798673f65f02 allow comment in more commands;
wenzelm
parents: 9193
diff changeset
   564
    "Theory.add_trfuns ([], parse_translation, [], [])" o Comment.ignore;
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   565
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   566
val print_translation =
9590
52e71612e42f added declare_theorems(_i);
wenzelm
parents: 9466
diff changeset
   567
  Context.use_let "val print_translation: (string * (term list -> term)) list"
9273
798673f65f02 allow comment in more commands;
wenzelm
parents: 9193
diff changeset
   568
    "Theory.add_trfuns ([], [], print_translation, [])" o Comment.ignore;
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   569
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   570
val print_ast_translation =
9590
52e71612e42f added declare_theorems(_i);
wenzelm
parents: 9466
diff changeset
   571
  Context.use_let "val print_ast_translation: (string * (Syntax.ast list -> Syntax.ast)) list"
9273
798673f65f02 allow comment in more commands;
wenzelm
parents: 9193
diff changeset
   572
    "Theory.add_trfuns ([], [], [], print_ast_translation)" o Comment.ignore;
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   573
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   574
val typed_print_translation =
9590
52e71612e42f added declare_theorems(_i);
wenzelm
parents: 9466
diff changeset
   575
  Context.use_let "val typed_print_translation: (string * (bool -> typ -> term list -> term)) list"
9273
798673f65f02 allow comment in more commands;
wenzelm
parents: 9193
diff changeset
   576
    "Theory.add_trfunsT typed_print_translation" o Comment.ignore;
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   577
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   578
val token_translation =
9590
52e71612e42f added declare_theorems(_i);
wenzelm
parents: 9466
diff changeset
   579
  Context.use_let "val token_translation: (string * string * (string -> string * int)) list"
9273
798673f65f02 allow comment in more commands;
wenzelm
parents: 9193
diff changeset
   580
    "Theory.add_tokentrfuns token_translation" o Comment.ignore;
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   581
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   582
9193
4f4936582889 have_theorems etc.: handle multiple lists of arguments;
wenzelm
parents: 9032
diff changeset
   583
(* add method *)
4f4936582889 have_theorems etc.: handle multiple lists of arguments;
wenzelm
parents: 9032
diff changeset
   584
4f4936582889 have_theorems etc.: handle multiple lists of arguments;
wenzelm
parents: 9032
diff changeset
   585
fun method_setup ((name, txt, cmt), comment_ignore) =
4f4936582889 have_theorems etc.: handle multiple lists of arguments;
wenzelm
parents: 9032
diff changeset
   586
  Context.use_let
9810
7e785df2b76a method_setup: thms closure;
wenzelm
parents: 9590
diff changeset
   587
    "val thm = PureThy.get_thm_closure (Context.the_context ());\n\
7e785df2b76a method_setup: thms closure;
wenzelm
parents: 9590
diff changeset
   588
    \val thms = PureThy.get_thms_closure (Context.the_context ());\n\
7e785df2b76a method_setup: thms closure;
wenzelm
parents: 9590
diff changeset
   589
    \val method: bstring * (Args.src -> Proof.context -> Proof.method) * string"
9193
4f4936582889 have_theorems etc.: handle multiple lists of arguments;
wenzelm
parents: 9032
diff changeset
   590
    "PureIsar.Method.add_method method"
4f4936582889 have_theorems etc.: handle multiple lists of arguments;
wenzelm
parents: 9032
diff changeset
   591
    ("(" ^ quote name ^ ", " ^ txt ^ ", " ^ quote cmt ^ ")");
4f4936582889 have_theorems etc.: handle multiple lists of arguments;
wenzelm
parents: 9032
diff changeset
   592
4f4936582889 have_theorems etc.: handle multiple lists of arguments;
wenzelm
parents: 9032
diff changeset
   593
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   594
(* add_oracle *)
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   595
6728
b51b25db7bc6 added formal comment arguments almost everywhere (still ignored);
wenzelm
parents: 6688
diff changeset
   596
fun add_oracle ((name, txt), comment_ignore) =
8349
611342539639 moved use_mltext, use_mltext_theory, use_let, use_setup to context.ML;
wenzelm
parents: 8236
diff changeset
   597
  Context.use_let
9590
52e71612e42f added declare_theorems(_i);
wenzelm
parents: 9466
diff changeset
   598
    "val oracle: bstring * (Sign.sg * Object.T -> term)"
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   599
    "Theory.add_oracle oracle"
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   600
    ("(" ^ quote name ^ ", " ^ txt ^ ")");
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   601
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   602
6688
f33c89103fb4 cleaned comments;
wenzelm
parents: 6650
diff changeset
   603
(* theory init and exit *)
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   604
8804
wenzelm
parents: 8731
diff changeset
   605
fun gen_begin_theory upd name parents files =
wenzelm
parents: 8731
diff changeset
   606
  ThyInfo.begin_theory Present.begin_theory upd name parents (map (apfst Path.unpack) files);
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   607
8804
wenzelm
parents: 8731
diff changeset
   608
val begin_theory = gen_begin_theory false;
7909
824ea50b8dbb end/kill_theory: check_known_thy;
wenzelm
parents: 7862
diff changeset
   609
824ea50b8dbb end/kill_theory: check_known_thy;
wenzelm
parents: 7862
diff changeset
   610
fun end_theory thy =
7932
92df50fb89ca export kill_theory;
wenzelm
parents: 7909
diff changeset
   611
  if ThyInfo.check_known_thy (PureThy.get_name thy) then ThyInfo.end_theory thy
7909
824ea50b8dbb end/kill_theory: check_known_thy;
wenzelm
parents: 7862
diff changeset
   612
  else thy;
824ea50b8dbb end/kill_theory: check_known_thy;
wenzelm
parents: 7862
diff changeset
   613
7932
92df50fb89ca export kill_theory;
wenzelm
parents: 7909
diff changeset
   614
val kill_theory = ThyInfo.if_known_thy ThyInfo.remove_thy;
6688
f33c89103fb4 cleaned comments;
wenzelm
parents: 6650
diff changeset
   615
7103
1c44df10a7bc removed update_context;
wenzelm
parents: 7012
diff changeset
   616
8804
wenzelm
parents: 8731
diff changeset
   617
fun bg_theory (name, parents, files) int = gen_begin_theory int name parents files;
6331
fb7b8d6c2bd1 begin/end_theory: presentation;
wenzelm
parents: 6266
diff changeset
   618
fun en_theory thy = (end_theory thy; ());
fb7b8d6c2bd1 begin/end_theory: presentation;
wenzelm
parents: 6266
diff changeset
   619
7932
92df50fb89ca export kill_theory;
wenzelm
parents: 7909
diff changeset
   620
fun theory spec = Toplevel.init_theory (bg_theory spec) en_theory (kill_theory o PureThy.get_name);
6246
0aa2e536bc20 improved theory, context, update_context;
wenzelm
parents: 6198
diff changeset
   621
0aa2e536bc20 improved theory, context, update_context;
wenzelm
parents: 6198
diff changeset
   622
0aa2e536bc20 improved theory, context, update_context;
wenzelm
parents: 6198
diff changeset
   623
(* context switch *)
0aa2e536bc20 improved theory, context, update_context;
wenzelm
parents: 6198
diff changeset
   624
7960
d5c91c131070 improved IsarThy.init_context;
wenzelm
parents: 7953
diff changeset
   625
fun fetch_context f x =
d5c91c131070 improved IsarThy.init_context;
wenzelm
parents: 7953
diff changeset
   626
  (case Context.pass None f x of
d5c91c131070 improved IsarThy.init_context;
wenzelm
parents: 7953
diff changeset
   627
    ((), None) => raise Toplevel.UNDEF
d5c91c131070 improved IsarThy.init_context;
wenzelm
parents: 7953
diff changeset
   628
  | ((), Some thy) => thy);
d5c91c131070 improved IsarThy.init_context;
wenzelm
parents: 7953
diff changeset
   629
d5c91c131070 improved IsarThy.init_context;
wenzelm
parents: 7953
diff changeset
   630
fun init_context f x = Toplevel.init_theory (fn _ => fetch_context f x) (K ()) (K ());
7953
955fde69fa7b added init_context;
wenzelm
parents: 7932
diff changeset
   631
955fde69fa7b added init_context;
wenzelm
parents: 7932
diff changeset
   632
val context = init_context (ThyInfo.quiet_update_thy true);
6246
0aa2e536bc20 improved theory, context, update_context;
wenzelm
parents: 6198
diff changeset
   633
5830
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   634
95b619c7289b Derived theory operations.
wenzelm
parents:
diff changeset
   635
end;