src/Pure/Isar/isar_cmd.ML
author wenzelm
Tue Jul 02 17:44:13 2002 +0200 (2002-07-02 ago)
changeset 13284 20c818c966e6
parent 13273 6fea54cf6fb5
child 13801 6c5c5bdfae84
permissions -rw-r--r--
thms_containing: optional limit argument;
wenzelm@5831
     1
(*  Title:      Pure/Isar/isar_cmd.ML
wenzelm@5831
     2
    ID:         $Id$
wenzelm@5831
     3
    Author:     Markus Wenzel, TU Muenchen
wenzelm@8807
     4
    License:    GPL (GNU GENERAL PUBLIC LICENSE)
wenzelm@5831
     5
wenzelm@5831
     6
Non-logical toplevel commands.
wenzelm@5831
     7
*)
wenzelm@5831
     8
wenzelm@5831
     9
signature ISAR_CMD =
wenzelm@5831
    10
sig
wenzelm@7462
    11
  val welcome: Toplevel.transition -> Toplevel.transition
wenzelm@7462
    12
  val init_toplevel: Toplevel.transition -> Toplevel.transition
wenzelm@5831
    13
  val exit: Toplevel.transition -> Toplevel.transition
wenzelm@5831
    14
  val quit: Toplevel.transition -> Toplevel.transition
wenzelm@7908
    15
  val touch_child_thys: string -> Toplevel.transition -> Toplevel.transition
wenzelm@7101
    16
  val touch_all_thys: Toplevel.transition -> Toplevel.transition
wenzelm@7101
    17
  val touch_thy: string -> Toplevel.transition -> Toplevel.transition
wenzelm@7101
    18
  val remove_thy: string -> Toplevel.transition -> Toplevel.transition
wenzelm@7931
    19
  val kill_thy: string -> Toplevel.transition -> Toplevel.transition
wenzelm@9731
    20
  val pr: string list * (int option * int option) -> Toplevel.transition -> Toplevel.transition
wenzelm@8453
    21
  val disable_pr: Toplevel.transition -> Toplevel.transition
wenzelm@8453
    22
  val enable_pr: Toplevel.transition -> Toplevel.transition
wenzelm@6734
    23
  val cannot_undo: string -> Toplevel.transition -> Toplevel.transition
wenzelm@7729
    24
  val clear_undos_theory: int -> Toplevel.transition -> Toplevel.transition
wenzelm@6742
    25
  val redo: Toplevel.transition -> Toplevel.transition
wenzelm@6742
    26
  val undos_proof: int -> Toplevel.transition -> Toplevel.transition
wenzelm@7936
    27
  val kill_proof_notify: (unit -> unit) -> Toplevel.transition -> Toplevel.transition
wenzelm@6742
    28
  val kill_proof: Toplevel.transition -> Toplevel.transition
wenzelm@6742
    29
  val undo_theory: Toplevel.transition -> Toplevel.transition
wenzelm@6686
    30
  val undo: Toplevel.transition -> Toplevel.transition
wenzelm@8498
    31
  val kill: Toplevel.transition -> Toplevel.transition
wenzelm@12876
    32
  val back: bool -> Toplevel.transition -> Toplevel.transition
wenzelm@12876
    33
  val use: string -> Toplevel.transition -> Toplevel.transition
wenzelm@12876
    34
  val use_mltext_theory: string -> Toplevel.transition -> Toplevel.transition
wenzelm@12876
    35
  val use_mltext: bool -> string -> Toplevel.transition -> Toplevel.transition
wenzelm@5831
    36
  val use_commit: Toplevel.transition -> Toplevel.transition
wenzelm@5831
    37
  val cd: string -> Toplevel.transition -> Toplevel.transition
wenzelm@5831
    38
  val pwd: Toplevel.transition -> Toplevel.transition
wenzelm@5831
    39
  val use_thy: string -> Toplevel.transition -> Toplevel.transition
wenzelm@6694
    40
  val use_thy_only: string -> Toplevel.transition -> Toplevel.transition
wenzelm@6195
    41
  val update_thy: string -> Toplevel.transition -> Toplevel.transition
wenzelm@7101
    42
  val update_thy_only: string -> Toplevel.transition -> Toplevel.transition
wenzelm@7124
    43
  val pretty_setmargin: int -> Toplevel.transition -> Toplevel.transition
wenzelm@7308
    44
  val print_context: Toplevel.transition -> Toplevel.transition
wenzelm@5831
    45
  val print_theory: Toplevel.transition -> Toplevel.transition
wenzelm@5831
    46
  val print_syntax: Toplevel.transition -> Toplevel.transition
wenzelm@5880
    47
  val print_theorems: Toplevel.transition -> Toplevel.transition
wenzelm@12060
    48
  val print_locales: Toplevel.transition -> Toplevel.transition
wenzelm@12876
    49
  val print_locale: Locale.expr * Args.src Locale.element list
wenzelm@12758
    50
    -> Toplevel.transition -> Toplevel.transition
wenzelm@5831
    51
  val print_attributes: Toplevel.transition -> Toplevel.transition
wenzelm@12382
    52
  val print_rules: Toplevel.transition -> Toplevel.transition
wenzelm@11666
    53
  val print_induct_rules: Toplevel.transition -> Toplevel.transition
wenzelm@9219
    54
  val print_trans_rules: Toplevel.transition -> Toplevel.transition
wenzelm@5831
    55
  val print_methods: Toplevel.transition -> Toplevel.transition
wenzelm@9219
    56
  val print_antiquotations: Toplevel.transition -> Toplevel.transition
wenzelm@13284
    57
  val print_thms_containing: int option * string list
wenzelm@13284
    58
    -> Toplevel.transition -> Toplevel.transition
wenzelm@9454
    59
  val thm_deps: (string * Args.src list) list -> Toplevel.transition -> Toplevel.transition
wenzelm@5831
    60
  val print_binds: Toplevel.transition -> Toplevel.transition
wenzelm@5831
    61
  val print_lthms: Toplevel.transition -> Toplevel.transition
wenzelm@8369
    62
  val print_cases: Toplevel.transition -> Toplevel.transition
wenzelm@12876
    63
  val print_thms: string list * (string * Args.src list) list
wenzelm@10581
    64
    -> Toplevel.transition -> Toplevel.transition
wenzelm@12876
    65
  val print_prfs: bool -> string list * (string * Args.src list) list option
berghofe@11524
    66
    -> Toplevel.transition -> Toplevel.transition
wenzelm@12876
    67
  val print_prop: (string list * string) -> Toplevel.transition -> Toplevel.transition
wenzelm@12876
    68
  val print_term: (string list * string) -> Toplevel.transition -> Toplevel.transition
wenzelm@12876
    69
  val print_type: (string list * string) -> Toplevel.transition -> Toplevel.transition
wenzelm@12938
    70
  val add_header: string * Position.T -> Toplevel.transition -> Toplevel.transition
wenzelm@12938
    71
  val add_chapter: string * Position.T -> Toplevel.transition -> Toplevel.transition
wenzelm@12938
    72
  val add_section: string * Position.T -> Toplevel.transition -> Toplevel.transition
wenzelm@12938
    73
  val add_subsection: string * Position.T -> Toplevel.transition -> Toplevel.transition
wenzelm@12938
    74
  val add_subsubsection: string * Position.T -> Toplevel.transition -> Toplevel.transition
wenzelm@12938
    75
  val add_text: string * Position.T -> Toplevel.transition -> Toplevel.transition
wenzelm@12938
    76
  val add_text_raw: string * Position.T -> Toplevel.transition -> Toplevel.transition
wenzelm@12938
    77
  val add_sect: string * Position.T -> Toplevel.transition -> Toplevel.transition
wenzelm@12938
    78
  val add_subsect: string * Position.T -> Toplevel.transition -> Toplevel.transition
wenzelm@12938
    79
  val add_subsubsect: string * Position.T -> Toplevel.transition -> Toplevel.transition
wenzelm@12938
    80
  val add_txt: string * Position.T -> Toplevel.transition -> Toplevel.transition
wenzelm@12938
    81
  val add_txt_raw: string * Position.T -> Toplevel.transition -> Toplevel.transition
wenzelm@5831
    82
end;
wenzelm@5831
    83
wenzelm@5831
    84
structure IsarCmd: ISAR_CMD =
wenzelm@5831
    85
struct
wenzelm@5831
    86
wenzelm@5831
    87
wenzelm@7462
    88
(* variations on init / exit *)
wenzelm@7462
    89
wenzelm@7462
    90
val init_toplevel = Toplevel.imperative (fn () => raise Toplevel.RESTART);
wenzelm@7462
    91
val welcome = Toplevel.imperative (writeln o Session.welcome);
wenzelm@5831
    92
wenzelm@5831
    93
val exit = Toplevel.keep (fn state =>
wenzelm@5831
    94
  (Context.set_context (try Toplevel.theory_of state);
wenzelm@6635
    95
    writeln "Leaving the Isar loop.  Invoke 'loop();' to restart.";
wenzelm@5831
    96
    raise Toplevel.TERMINATE));
wenzelm@5831
    97
wenzelm@5831
    98
val quit = Toplevel.imperative quit;
wenzelm@5831
    99
wenzelm@7101
   100
wenzelm@7101
   101
(* touch theories *)
wenzelm@7101
   102
wenzelm@7908
   103
fun touch_child_thys name = Toplevel.imperative (fn () => ThyInfo.touch_child_thys name);
wenzelm@7101
   104
val touch_all_thys = Toplevel.imperative ThyInfo.touch_all_thys;
wenzelm@7101
   105
fun touch_thy name = Toplevel.imperative (fn () => ThyInfo.touch_thy name);
wenzelm@7101
   106
fun remove_thy name = Toplevel.imperative (fn () => ThyInfo.remove_thy name);
wenzelm@7931
   107
fun kill_thy name = Toplevel.imperative (fn () => IsarThy.kill_theory name);
wenzelm@7101
   108
wenzelm@5831
   109
wenzelm@8453
   110
(* print state *)
wenzelm@8453
   111
wenzelm@8463
   112
fun with_modes modes e =
wenzelm@8463
   113
  Library.setmp print_mode (modes @ ! print_mode) e ();
wenzelm@8463
   114
wenzelm@9731
   115
fun set_limit _ None = ()
wenzelm@9731
   116
  | set_limit r (Some n) = r := n;
wenzelm@9731
   117
wenzelm@9731
   118
fun pr (ms, (lim1, lim2)) = Toplevel.keep (fn state =>
wenzelm@9731
   119
  (set_limit goals_limit lim1; set_limit ProofContext.prems_limit lim2; Toplevel.quiet := false;
wenzelm@8886
   120
    with_modes ms (fn () => Toplevel.print_state true state)));
wenzelm@8453
   121
wenzelm@8453
   122
val disable_pr = Toplevel.imperative (fn () => Toplevel.quiet := true);
wenzelm@8453
   123
val enable_pr = Toplevel.imperative (fn () => Toplevel.quiet := false);
wenzelm@8453
   124
wenzelm@8453
   125
wenzelm@6686
   126
(* history commands *)
wenzelm@6686
   127
wenzelm@6734
   128
fun cannot_undo txt = Toplevel.imperative (fn () => error ("Cannot undo " ^ quote txt));
wenzelm@7729
   129
val clear_undos_theory = Toplevel.history o History.clear;
wenzelm@6686
   130
val redo = Toplevel.history History.redo o Toplevel.proof ProofHistory.redo;
wenzelm@6686
   131
wenzelm@6742
   132
fun undos_proof n = Toplevel.proof (fn prf =>
wenzelm@6742
   133
  if ProofHistory.is_initial prf then raise Toplevel.UNDEF else funpow n ProofHistory.undo prf);
wenzelm@6686
   134
wenzelm@7936
   135
fun kill_proof_notify (f: unit -> unit) = Toplevel.history (fn hist =>
wenzelm@6742
   136
  (case History.current hist of
wenzelm@6742
   137
    Toplevel.Theory _ => raise Toplevel.UNDEF
wenzelm@7936
   138
  | Toplevel.Proof _ => (f (); History.undo hist)));
wenzelm@7936
   139
wenzelm@7936
   140
val kill_proof = kill_proof_notify (K ());
wenzelm@6686
   141
wenzelm@6742
   142
val undo_theory = Toplevel.history (fn hist =>
wenzelm@6742
   143
  if History.is_initial hist then raise Toplevel.UNDEF else History.undo hist);
wenzelm@6686
   144
wenzelm@7413
   145
val undo = Toplevel.kill o undo_theory o undos_proof 1;
wenzelm@8498
   146
val kill = Toplevel.kill o kill_proof;
wenzelm@12876
   147
val back = Toplevel.proof o ProofHistory.back;
wenzelm@9273
   148
wenzelm@6686
   149
wenzelm@5831
   150
(* use ML text *)
wenzelm@5831
   151
wenzelm@12876
   152
fun use name = Toplevel.keep (fn state =>
wenzelm@6264
   153
  Context.setmp (try Toplevel.theory_of state) ThyInfo.use name);
wenzelm@5831
   154
wenzelm@5831
   155
(*passes changes of theory context*)
wenzelm@12876
   156
val use_mltext_theory = Toplevel.theory' o Context.use_mltext_theory;
wenzelm@5831
   157
wenzelm@5831
   158
(*ignore result theory context*)
wenzelm@12876
   159
fun use_mltext v txt = Toplevel.keep' (fn verb => fn state =>
wenzelm@8349
   160
  (Context.use_mltext txt (v andalso verb) (try Toplevel.theory_of state)));
wenzelm@5831
   161
wenzelm@5831
   162
(*Note: commit is dynamically bound*)
wenzelm@12876
   163
val use_commit = use_mltext false "commit();";
wenzelm@5831
   164
wenzelm@5831
   165
wenzelm@5831
   166
(* current working directory *)
wenzelm@5831
   167
wenzelm@7790
   168
fun cd dir = Toplevel.imperative (fn () => (File.cd (Path.unpack dir)));
wenzelm@7790
   169
val pwd = Toplevel.imperative (fn () => writeln (Path.pack (File.pwd ())));
wenzelm@5831
   170
wenzelm@5831
   171
wenzelm@5831
   172
(* load theory files *)
wenzelm@5831
   173
wenzelm@6243
   174
fun use_thy name = Toplevel.imperative (fn () => Context.save ThyInfo.use_thy name);
wenzelm@6694
   175
fun use_thy_only name = Toplevel.imperative (fn () => Context.save ThyInfo.use_thy_only name);
wenzelm@6243
   176
fun update_thy name = Toplevel.imperative (fn () => Context.save ThyInfo.update_thy name);
wenzelm@7124
   177
fun update_thy_only name =
wenzelm@7124
   178
  Toplevel.imperative (fn () => Context.save ThyInfo.update_thy_only name);
wenzelm@7124
   179
wenzelm@7124
   180
wenzelm@7124
   181
(* pretty_setmargin *)
wenzelm@7124
   182
wenzelm@7124
   183
fun pretty_setmargin n = Toplevel.imperative (fn () => Pretty.setmargin n);
wenzelm@5831
   184
wenzelm@5831
   185
wenzelm@9513
   186
(* print parts of theory and proof context *)
wenzelm@5831
   187
wenzelm@7308
   188
val print_context = Toplevel.keep Toplevel.print_state_context;
wenzelm@9513
   189
wenzelm@9513
   190
val print_theory = Toplevel.unknown_theory o
wenzelm@9513
   191
  Toplevel.keep (PureThy.print_theory o Toplevel.theory_of);
wenzelm@9513
   192
wenzelm@9513
   193
val print_syntax = Toplevel.unknown_theory o
wenzelm@12069
   194
  Toplevel.keep (Display.print_syntax o Toplevel.theory_of) o
wenzelm@12069
   195
  Toplevel.keep (ProofContext.print_syntax o Proof.context_of o Toplevel.proof_of);
wenzelm@9513
   196
wenzelm@9513
   197
val print_theorems = Toplevel.unknown_theory o
wenzelm@9513
   198
  Toplevel.keep (PureThy.print_theorems o Toplevel.theory_of);
wenzelm@9513
   199
wenzelm@12060
   200
val print_locales = Toplevel.unknown_theory o
wenzelm@12060
   201
  Toplevel.keep (Locale.print_locales o Toplevel.theory_of);
wenzelm@12060
   202
wenzelm@12758
   203
fun print_locale (import, body) = Toplevel.unknown_theory o Toplevel.keep (fn state =>
wenzelm@12758
   204
  let val thy = Toplevel.theory_of state in
wenzelm@12876
   205
    Locale.print_locale thy import (map (Locale.attribute (Attrib.local_attribute thy)) body)
wenzelm@12758
   206
  end);
wenzelm@12060
   207
wenzelm@9513
   208
val print_attributes = Toplevel.unknown_theory o
wenzelm@9513
   209
  Toplevel.keep (Attrib.print_attributes o Toplevel.theory_of);
wenzelm@9513
   210
wenzelm@12382
   211
val print_rules = Toplevel.unknown_context o
wenzelm@12382
   212
  Toplevel.keep (Toplevel.node_case ContextRules.print_global_rules
wenzelm@12382
   213
    (ContextRules.print_local_rules o Proof.context_of));
wenzelm@12382
   214
wenzelm@11666
   215
val print_induct_rules = Toplevel.unknown_context o
wenzelm@11666
   216
  Toplevel.keep (Toplevel.node_case InductAttrib.print_global_rules
wenzelm@11666
   217
    (InductAttrib.print_local_rules o Proof.context_of));
wenzelm@11666
   218
wenzelm@9513
   219
val print_trans_rules = Toplevel.unknown_context o
wenzelm@9513
   220
  Toplevel.keep (Toplevel.node_case Calculation.print_global_rules
wenzelm@9513
   221
    (Calculation.print_local_rules o Proof.context_of));
wenzelm@9513
   222
wenzelm@9513
   223
val print_methods = Toplevel.unknown_theory o
wenzelm@9513
   224
  Toplevel.keep (Method.print_methods o Toplevel.theory_of);
wenzelm@9513
   225
wenzelm@9219
   226
val print_antiquotations = Toplevel.imperative IsarOutput.print_antiquotations;
wenzelm@5831
   227
wenzelm@13284
   228
fun print_thms_containing (lim, spec) = Toplevel.unknown_theory o Toplevel.keep (fn state =>
wenzelm@13273
   229
  ProofContext.print_thms_containing
wenzelm@13284
   230
    (Toplevel.node_case ProofContext.init Proof.context_of state) lim spec);
wenzelm@7615
   231
wenzelm@9513
   232
fun thm_deps args = Toplevel.unknown_theory o Toplevel.keep (fn state =>
wenzelm@9454
   233
  ThmDeps.thm_deps (IsarThy.get_thmss args (Toplevel.enter_forward_proof state)));
wenzelm@9454
   234
wenzelm@5831
   235
wenzelm@5831
   236
(* print proof context contents *)
wenzelm@5831
   237
wenzelm@9513
   238
val print_binds = Toplevel.unknown_proof o Toplevel.keep (fn state =>
wenzelm@9513
   239
  ProofContext.setmp_verbose
wenzelm@9513
   240
    ProofContext.print_binds (Proof.context_of (Toplevel.proof_of state)));
wenzelm@9513
   241
wenzelm@9513
   242
val print_lthms = Toplevel.unknown_proof o Toplevel.keep (fn state =>
wenzelm@9513
   243
  ProofContext.setmp_verbose
wenzelm@12055
   244
    ProofContext.print_lthms (Proof.context_of (Toplevel.proof_of state)));
wenzelm@9513
   245
wenzelm@9513
   246
val print_cases = Toplevel.unknown_proof o Toplevel.keep (fn state =>
wenzelm@9513
   247
  ProofContext.setmp_verbose
wenzelm@9513
   248
    ProofContext.print_cases (Proof.context_of (Toplevel.proof_of state)));
wenzelm@5831
   249
wenzelm@5831
   250
wenzelm@7012
   251
(* print theorems / types / terms / props *)
wenzelm@5880
   252
wenzelm@9128
   253
fun string_of_thms state ms args = with_modes ms (fn () =>
wenzelm@12055
   254
  Pretty.string_of (ProofContext.pretty_thms (Proof.context_of state)
wenzelm@12055
   255
    (IsarThy.get_thmss args state)));
wenzelm@5895
   256
berghofe@12125
   257
fun string_of_prfs full state ms arg = with_modes ms (fn () =>
berghofe@12125
   258
  Pretty.string_of (case arg of    (* FIXME context syntax!? *)
berghofe@12125
   259
      None =>
berghofe@12125
   260
        let
berghofe@12125
   261
          val (_, (_, thm)) = Proof.get_goal state;
berghofe@12125
   262
          val {sign, prop, der = (_, prf), ...} = rep_thm thm;
berghofe@12125
   263
          val prf' = Proofterm.rewrite_proof_notypes ([], []) prf
berghofe@12125
   264
        in
berghofe@12125
   265
          ProofSyntax.pretty_proof sign
berghofe@12125
   266
            (if full then Reconstruct.reconstruct_proof sign prop prf' else prf')
berghofe@12125
   267
        end
berghofe@12125
   268
    | Some args => Pretty.chunks
berghofe@12125
   269
        (map (ProofSyntax.pretty_proof_of full) (IsarThy.get_thmss args state))));
berghofe@11524
   270
wenzelm@9128
   271
fun string_of_prop state ms s =
wenzelm@5831
   272
  let
wenzelm@12055
   273
    val ctxt = Proof.context_of state;
wenzelm@12055
   274
    val prop = ProofContext.read_prop ctxt s;
wenzelm@12055
   275
  in
wenzelm@12055
   276
    with_modes ms (fn () => Pretty.string_of (Pretty.quote (ProofContext.pretty_term ctxt prop)))
wenzelm@12055
   277
  end;
wenzelm@5831
   278
wenzelm@9128
   279
fun string_of_term state ms s =
wenzelm@5831
   280
  let
wenzelm@12055
   281
    val ctxt = Proof.context_of state;
wenzelm@12055
   282
    val t = ProofContext.read_term ctxt s;
wenzelm@5831
   283
    val T = Term.type_of t;
wenzelm@5831
   284
  in
wenzelm@9128
   285
    with_modes ms (fn () => Pretty.string_of
wenzelm@12055
   286
      (Pretty.block [Pretty.quote (ProofContext.pretty_term ctxt t), Pretty.fbrk,
wenzelm@12055
   287
        Pretty.str "::", Pretty.brk 1, Pretty.quote (ProofContext.pretty_typ ctxt T)]))
wenzelm@9128
   288
  end;
wenzelm@5831
   289
wenzelm@9128
   290
fun string_of_type state ms s =
wenzelm@5831
   291
  let
wenzelm@12055
   292
    val ctxt = Proof.context_of state;
wenzelm@12055
   293
    val T = ProofContext.read_typ ctxt s;
wenzelm@12055
   294
  in with_modes ms (fn () => Pretty.string_of (Pretty.quote (ProofContext.pretty_typ ctxt T))) end;
wenzelm@9128
   295
wenzelm@9128
   296
fun print_item string_of (x, y) = Toplevel.keep (fn state =>
wenzelm@9454
   297
  writeln (string_of (Toplevel.enter_forward_proof state) x y));
wenzelm@9128
   298
wenzelm@12876
   299
val print_thms = print_item string_of_thms;
wenzelm@12876
   300
fun print_prfs full = print_item (string_of_prfs full);
wenzelm@12876
   301
val print_prop = print_item string_of_prop;
wenzelm@12876
   302
val print_term = print_item string_of_term;
wenzelm@12876
   303
val print_type = print_item string_of_type;
wenzelm@5831
   304
wenzelm@12938
   305
wenzelm@12938
   306
(* markup commands *)
wenzelm@12938
   307
wenzelm@12938
   308
fun add_header s = Toplevel.keep' (fn int => fn state =>
wenzelm@12938
   309
  (if Toplevel.is_toplevel state then () else raise Toplevel.UNDEF;
wenzelm@12938
   310
    OuterSyntax.check_text s int state));
wenzelm@12938
   311
wenzelm@12953
   312
local
wenzelm@12953
   313
wenzelm@12938
   314
fun present_text assert_proof present (s, pos) = Toplevel.keep' (fn int => fn state =>
wenzelm@12938
   315
  (if can Toplevel.proof_of state = assert_proof then () else raise Toplevel.UNDEF;
wenzelm@12953
   316
    Context.setmp (Some (Toplevel.theory_of state)) present s;
wenzelm@12938
   317
    OuterSyntax.check_text (s, pos) int state;
wenzelm@12953
   318
    raise Toplevel.UNDEF));
wenzelm@12953
   319
wenzelm@12953
   320
fun theory f x = Toplevel.theory I o present_text false f x;
wenzelm@12953
   321
fun proof f x = Toplevel.print o Toplevel.proof (ProofHistory.apply I) o present_text true f x;
wenzelm@12938
   322
wenzelm@12953
   323
in
wenzelm@12953
   324
wenzelm@12953
   325
val add_chapter = theory Present.section;
wenzelm@12953
   326
val add_section = theory Present.section;
wenzelm@12953
   327
val add_subsection = theory Present.subsection;
wenzelm@12953
   328
val add_subsubsection = theory Present.subsubsection;
wenzelm@12953
   329
val add_text = theory (K ());
wenzelm@12938
   330
val add_text_raw = add_text;
wenzelm@12953
   331
val add_txt = proof (K ());
wenzelm@12938
   332
val add_txt_raw = add_txt;
wenzelm@12938
   333
val add_sect = add_txt;
wenzelm@12938
   334
val add_subsect = add_txt;
wenzelm@12938
   335
val add_subsubsect = add_txt;
wenzelm@12938
   336
wenzelm@5831
   337
end;
wenzelm@12953
   338
wenzelm@12953
   339
end;