NEWS
author wenzelm
Fri Jul 08 16:13:34 2011 +0200 (2011-07-08)
changeset 43709 717e96cf9527
parent 43627 ecd4bb7a8bc0
child 43731 70072780e095
child 43736 d2f7af6e993c
permissions -rw-r--r--
discontinued special treatment of hard tabulators;
wenzelm@5363
     1
Isabelle NEWS -- history user-relevant changes
wenzelm@5363
     2
==============================================
wenzelm@2553
     3
wenzelm@41651
     4
New in this Isabelle version
wenzelm@41651
     5
----------------------------
wenzelm@41651
     6
wenzelm@41703
     7
*** General ***
wenzelm@41703
     8
wenzelm@41955
     9
* Theory loader: source files are identified by content via SHA1
wenzelm@41955
    10
digests.  Discontinued former path/modtime identification and optional
wenzelm@41955
    11
ISABELLE_FILE_IDENT plugin scripts.
wenzelm@41955
    12
wenzelm@41703
    13
* Parallelization of nested Isar proofs is subject to
wenzelm@41703
    14
Goal.parallel_proofs_threshold (default 100).  See also isabelle
wenzelm@41703
    15
usedir option -Q.
wenzelm@41703
    16
wenzelm@41718
    17
* Discontinued support for Poly/ML 5.2, which was the last version
wenzelm@41718
    18
without proper multithreading and TimeLimit implementation.
wenzelm@41718
    19
wenzelm@41734
    20
* Discontinued old lib/scripts/polyml-platform, which has been
wenzelm@41734
    21
obsolete since Isabelle2009-2.
wenzelm@41734
    22
wenzelm@41886
    23
* Theory loader: source files are exclusively located via the master
wenzelm@41886
    24
directory of each theory node (where the .thy file itself resides).
ballarin@43527
    25
The global load path (such as src/HOL/Library) has been discontinued.
ballarin@43527
    26
Note that the path element ~~ may be used to reference theories in the
ballarin@43527
    27
Isabelle home folder -- for instance, "~~/src/HOL/Library/FuncSet".
ballarin@43527
    28
INCOMPATIBILITY.
wenzelm@41886
    29
wenzelm@41950
    30
* Various optional external tools are referenced more robustly and
wenzelm@41952
    31
uniformly by explicit Isabelle settings as follows:
wenzelm@41952
    32
wenzelm@41952
    33
  ISABELLE_CSDP   (formerly CSDP_EXE)
wenzelm@41952
    34
  ISABELLE_GHC    (formerly EXEC_GHC or GHC_PATH)
wenzelm@41952
    35
  ISABELLE_OCAML  (formerly EXEC_OCAML)
wenzelm@41952
    36
  ISABELLE_SWIPL  (formerly EXEC_SWIPL)
wenzelm@41952
    37
  ISABELLE_YAP    (formerly EXEC_YAP)
wenzelm@41952
    38
wenzelm@41952
    39
Note that automated detection from the file-system or search path has
wenzelm@41952
    40
been discontinued.  INCOMPATIBILITY.
wenzelm@41950
    41
wenzelm@42669
    42
* Name space: former unsynchronized references are now proper
wenzelm@42669
    43
configuration options, with more conventional names:
wenzelm@42669
    44
wenzelm@42669
    45
  long_names   ~> names_long
wenzelm@42669
    46
  short_names  ~> names_short
wenzelm@42669
    47
  unique_names ~> names_unique
wenzelm@42669
    48
wenzelm@42669
    49
Minor INCOMPATIBILITY, need to declare options in context like this:
wenzelm@42669
    50
wenzelm@42669
    51
  declare [[names_unique = false]]
wenzelm@42358
    52
wenzelm@42502
    53
* Literal facts `prop` may contain dummy patterns, e.g. `_ = _`.  Note
wenzelm@42502
    54
that the result needs to be unique, which means fact specifications
wenzelm@42502
    55
may have to be refined after enriching a proof context.
wenzelm@42502
    56
wenzelm@42633
    57
* Isabelle/Isar reference manual provides more formal references in
wenzelm@42633
    58
syntax diagrams.
wenzelm@42633
    59
wenzelm@41703
    60
blanchet@41727
    61
*** HOL ***
blanchet@41727
    62
haftmann@42874
    63
* Finite_Set.thy: more coherent development of fold_set locales:
haftmann@42874
    64
haftmann@42874
    65
    locale fun_left_comm ~> locale comp_fun_commute
haftmann@42874
    66
    locale fun_left_comm_idem ~> locale comp_fun_idem
haftmann@42874
    67
    
haftmann@42874
    68
Both use point-free characterisation; interpretation proofs may need adjustment.
haftmann@42874
    69
INCOMPATIBILITY.
haftmann@42874
    70
bulwahn@42843
    71
* Code generation:
bulwahn@42843
    72
  - theory Library/Code_Char_ord provides native ordering of characters
bulwahn@42843
    73
    in the target language.
bulwahn@42843
    74
    
wenzelm@42815
    75
* Declare ext [intro] by default.  Rare INCOMPATIBILITY.
wenzelm@42815
    76
blanchet@41792
    77
* Nitpick:
blanchet@41877
    78
  - Added "need" and "total_consts" options.
blanchet@41993
    79
  - Reintroduced "show_skolems" option by popular demand.
blanchet@41792
    80
  - Renamed attribute: nitpick_def ~> nitpick_unfold.
blanchet@41792
    81
    INCOMPATIBILITY.
blanchet@41792
    82
blanchet@41727
    83
* Sledgehammer:
blanchet@43627
    84
  - sledgehammer available_provers ~> sledgehammer supported_provers.
blanchet@41727
    85
    INCOMPATIBILITY.
blanchet@42582
    86
  - Added support for SNARK and ToFoF-E on SystemOnTPTP and for simply typed
blanchet@42582
    87
    TPTP problems (TFF).
blanchet@43627
    88
  - Added "preplay_timeout", "slicing", "type_enc", "sound", "max_mono_iters",
blanchet@43627
    89
    and "max_new_mono_instances" options.
blanchet@43627
    90
  - Removed "explicit_apply" and "full_types" options as well as "Full Types"
blanchet@43627
    91
    Proof General menu item. INCOMPATIBILITY.
blanchet@41727
    92
blanchet@43206
    93
* Metis:
blanchet@43573
    94
  - Removed "metisF" -- use "metis" instead. INCOMPATIBILITY.
blanchet@43573
    95
  - Obsoleted "metisFT" -- use "metis (full_types)" instead. INCOMPATIBILITY.
blanchet@43206
    96
blanchet@41999
    97
* "try":
blanchet@43570
    98
  - Renamed "try_methods" and added "simp:", "intro:", "dest:", and "elim:"
blanchet@43570
    99
    options. INCOMPATIBILITY.
blanchet@43570
   100
  - Introduced "try" that not only runs "try_methods" but also "solve_direct",
blanchet@43570
   101
    "sledgehammer", "quickcheck", and "nitpick".
blanchet@41999
   102
bulwahn@42160
   103
* Quickcheck:
bulwahn@42160
   104
  - Added "eval" option to evaluate terms for the found counterexample
bulwahn@42160
   105
    (currently only supported by the default (exhaustive) tester)
bulwahn@42160
   106
  - Added post-processing of terms to obtain readable counterexamples
bulwahn@42160
   107
    (currently only supported by the default (exhaustive) tester)
bulwahn@43319
   108
  - New counterexample generator quickcheck[narrowing] enables
bulwahn@43319
   109
    narrowing-based testing.
bulwahn@43319
   110
    It requires that the Glasgow Haskell compiler is installed and
bulwahn@43319
   111
    its location is known to Isabelle with the environment variable
bulwahn@43319
   112
    ISABELLE_GHC.
bulwahn@42160
   113
krauss@41846
   114
* Function package: discontinued option "tailrec".
krauss@41846
   115
INCOMPATIBILITY. Use partial_function instead.
krauss@41846
   116
hoelzl@42149
   117
* HOL-Probability:
hoelzl@42149
   118
  - Caratheodory's extension lemma is now proved for ring_of_sets.
hoelzl@42149
   119
  - Infinite products of probability measures are now available.
hoelzl@42149
   120
  - Use extended reals instead of positive extended reals.
hoelzl@42149
   121
    INCOMPATIBILITY.
blanchet@41727
   122
wenzelm@42484
   123
krauss@41685
   124
*** Document preparation ***
krauss@41685
   125
wenzelm@43709
   126
* Discontinued special treatment of hard tabulators, which are better
wenzelm@43709
   127
avoided in the first place.  Implicit tab-width is 1.
wenzelm@43709
   128
wenzelm@42706
   129
* Antiquotation @{rail} layouts railroad syntax diagrams, see also
wenzelm@42706
   130
isar-ref manual.
wenzelm@42633
   131
bulwahn@43613
   132
* Antiquotation @{value} evaluates the given term and presents its result.
bulwahn@43613
   133
wenzelm@42514
   134
* Localized \isabellestyle switch can be used within blocks or groups
wenzelm@42514
   135
like this:
wenzelm@42514
   136
wenzelm@42514
   137
  \isabellestyle{it}  %preferred default
wenzelm@42514
   138
  {\isabellestylett @{text "typewriter stuff"}}
wenzelm@42514
   139
krauss@41685
   140
* New term style "isub" as ad-hoc conversion of variables x1, y23 into
krauss@41685
   141
subscripted form x\<^isub>1, y\<^isub>2\<^isub>3.
wenzelm@41651
   142
wenzelm@42484
   143
* Predefined LaTeX macros for Isabelle symbols \<bind> and \<then>
wenzelm@42484
   144
(e.g. see ~~/src/HOL/Library/Monad_Syntax.thy).
wenzelm@42484
   145
wenzelm@41651
   146
wenzelm@41944
   147
*** ML ***
wenzelm@41944
   148
wenzelm@43565
   149
* Antiquotations for ML and document preparation are managed as theory
wenzelm@43565
   150
data, which requires explicit setup.
wenzelm@43565
   151
wenzelm@42897
   152
* Isabelle_Process.is_active allows tools to check if the official
wenzelm@42897
   153
process wrapper is running (Isabelle/Scala/jEdit) or the old TTY loop
wenzelm@42897
   154
(better known as Proof General).
wenzelm@42897
   155
wenzelm@42360
   156
* Structure Proof_Context follows standard naming scheme.  Old
wenzelm@42360
   157
ProofContext is still available for some time as legacy alias.
wenzelm@42360
   158
wenzelm@42015
   159
* Structure Timing provides various operations for timing; supersedes
wenzelm@42015
   160
former start_timing/end_timing etc.
wenzelm@42015
   161
wenzelm@41944
   162
* Path.print is the official way to show file-system paths to users
wenzelm@41944
   163
(including quotes etc.).
wenzelm@41944
   164
wenzelm@42056
   165
* Inner syntax: identifiers in parse trees of generic categories
wenzelm@42056
   166
"logic", "aprop", "idt" etc. carry position information (disguised as
wenzelm@42056
   167
type constraints).  Occasional INCOMPATIBILITY with non-compliant
wenzelm@42057
   168
translations that choke on unexpected type constraints.  Positions can
wenzelm@42057
   169
be stripped in ML translations via Syntax.strip_positions /
wenzelm@42057
   170
Syntax.strip_positions_ast, or via the syntax constant
wenzelm@42057
   171
"_strip_positions" within parse trees.  As last resort, positions can
wenzelm@42057
   172
be disabled via the configuration option Syntax.positions, which is
wenzelm@42057
   173
called "syntax_positions" in Isar attribute syntax.
wenzelm@42056
   174
wenzelm@42290
   175
* Discontinued special status of various ML structures that contribute
wenzelm@42290
   176
to structure Syntax (Ast, Lexicon, Mixfix, Parser, Printer etc.): less
wenzelm@42290
   177
pervasive content, no inclusion in structure Syntax.  INCOMPATIBILITY,
wenzelm@42290
   178
refer directly to Ast.Constant, Lexicon.is_identifier,
wenzelm@42290
   179
Syntax_Trans.mk_binder_tr etc.
wenzelm@42224
   180
wenzelm@42247
   181
* Typed print translation: discontinued show_sorts argument, which is
wenzelm@42247
   182
already available via context of "advanced" translation.
wenzelm@42247
   183
wenzelm@42370
   184
* Refined PARALLEL_GOALS tactical: degrades gracefully for schematic
wenzelm@42370
   185
goal states; body tactic needs to address all subgoals uniformly.
wenzelm@42370
   186
wenzelm@42403
   187
* Slightly more special eq_list/eq_set, with shortcut involving
wenzelm@42403
   188
pointer equality (assumes that eq relation is reflexive).
wenzelm@42403
   189
wenzelm@42793
   190
* Classical tactics use proper Proof.context instead of historic types
wenzelm@42793
   191
claset/clasimpset.  Old-style declarations like addIs, addEs, addDs
wenzelm@42793
   192
operate directly on Proof.context.  Raw type claset retains its use as
wenzelm@42793
   193
snapshot of the classical context, which can be recovered via
wenzelm@42793
   194
(put_claset HOL_cs) etc.  Type clasimpset has been discontinued.
wenzelm@42793
   195
INCOMPATIBILITY, classical tactics and derived proof methods require
wenzelm@42793
   196
proper Proof.context.
wenzelm@42793
   197
wenzelm@41944
   198
wenzelm@41703
   199
wenzelm@41512
   200
New in Isabelle2011 (January 2011)
wenzelm@41512
   201
----------------------------------
wenzelm@37383
   202
wenzelm@37536
   203
*** General ***
wenzelm@37536
   204
wenzelm@41573
   205
* Experimental Prover IDE based on Isabelle/Scala and jEdit (see
wenzelm@41612
   206
src/Tools/jEdit).  This also serves as IDE for Isabelle/ML, with
wenzelm@41612
   207
useful tooltips and hyperlinks produced from its static analysis.  The
wenzelm@41612
   208
bundled component provides an executable Isabelle tool that can be run
wenzelm@41612
   209
like this:
wenzelm@41612
   210
wenzelm@41612
   211
  Isabelle2011/bin/isabelle jedit
wenzelm@41573
   212
wenzelm@40948
   213
* Significantly improved Isabelle/Isar implementation manual.
wenzelm@40948
   214
wenzelm@41594
   215
* System settings: ISABELLE_HOME_USER now includes ISABELLE_IDENTIFIER
wenzelm@41595
   216
(and thus refers to something like $HOME/.isabelle/Isabelle2011),
wenzelm@41594
   217
while the default heap location within that directory lacks that extra
wenzelm@41594
   218
suffix.  This isolates multiple Isabelle installations from each
wenzelm@41594
   219
other, avoiding problems with old settings in new versions.
wenzelm@41594
   220
INCOMPATIBILITY, need to copy/upgrade old user settings manually.
wenzelm@41594
   221
wenzelm@40947
   222
* Source files are always encoded as UTF-8, instead of old-fashioned
wenzelm@40947
   223
ISO-Latin-1.  INCOMPATIBILITY.  Isabelle LaTeX documents might require
wenzelm@40948
   224
the following package declarations:
wenzelm@40947
   225
wenzelm@40947
   226
  \usepackage[utf8]{inputenc}
wenzelm@40947
   227
  \usepackage{textcomp}
wenzelm@40947
   228
krauss@41440
   229
* Explicit treatment of UTF-8 sequences as Isabelle symbols, such that
wenzelm@37536
   230
a Unicode character is treated as a single symbol, not a sequence of
wenzelm@37536
   231
non-ASCII bytes as before.  Since Isabelle/ML string literals may
wenzelm@37536
   232
contain symbols without further backslash escapes, Unicode can now be
wenzelm@37536
   233
used here as well.  Recall that Symbol.explode in ML provides a
wenzelm@37536
   234
consistent view on symbols, while raw explode (or String.explode)
wenzelm@37536
   235
merely give a byte-oriented representation.
wenzelm@37536
   236
wenzelm@41594
   237
* Theory loader: source files are primarily located via the master
wenzelm@41594
   238
directory of each theory node (where the .thy file itself resides).
wenzelm@41594
   239
The global load path is still partially available as legacy feature.
wenzelm@41594
   240
Minor INCOMPATIBILITY due to subtle change in file lookup: use
wenzelm@41594
   241
explicit paths, relatively to the theory.
wenzelm@38135
   242
wenzelm@37939
   243
* Special treatment of ML file names has been discontinued.
wenzelm@37939
   244
Historically, optional extensions .ML or .sml were added on demand --
wenzelm@37939
   245
at the cost of clarity of file dependencies.  Recall that Isabelle/ML
wenzelm@37939
   246
files exclusively use the .ML extension.  Minor INCOMPATIBILTY.
wenzelm@37939
   247
wenzelm@38980
   248
* Various options that affect pretty printing etc. are now properly
wenzelm@38767
   249
handled within the context via configuration options, instead of
wenzelm@40879
   250
unsynchronized references or print modes.  There are both ML Config.T
wenzelm@40879
   251
entities and Isar declaration attributes to access these.
wenzelm@38767
   252
wenzelm@39125
   253
  ML (Config.T)                 Isar (attribute)
wenzelm@39125
   254
wenzelm@39128
   255
  eta_contract                  eta_contract
wenzelm@39137
   256
  show_brackets                 show_brackets
wenzelm@39134
   257
  show_sorts                    show_sorts
wenzelm@39134
   258
  show_types                    show_types
wenzelm@39126
   259
  show_question_marks           show_question_marks
wenzelm@39126
   260
  show_consts                   show_consts
wenzelm@40879
   261
  show_abbrevs                  show_abbrevs
wenzelm@39126
   262
wenzelm@41379
   263
  Syntax.ast_trace              syntax_ast_trace
wenzelm@41379
   264
  Syntax.ast_stat               syntax_ast_stat
wenzelm@39126
   265
  Syntax.ambiguity_level        syntax_ambiguity_level
wenzelm@39126
   266
wenzelm@39126
   267
  Goal_Display.goals_limit      goals_limit
wenzelm@39126
   268
  Goal_Display.show_main_goal   show_main_goal
wenzelm@39126
   269
wenzelm@41379
   270
  Method.rule_trace             rule_trace
wenzelm@41379
   271
wenzelm@39125
   272
  Thy_Output.display            thy_output_display
wenzelm@39125
   273
  Thy_Output.quotes             thy_output_quotes
wenzelm@39125
   274
  Thy_Output.indent             thy_output_indent
wenzelm@39125
   275
  Thy_Output.source             thy_output_source
wenzelm@39125
   276
  Thy_Output.break              thy_output_break
wenzelm@39125
   277
krauss@41440
   278
Note that corresponding "..._default" references in ML may only be
wenzelm@38767
   279
changed globally at the ROOT session setup, but *not* within a theory.
wenzelm@40879
   280
The option "show_abbrevs" supersedes the former print mode
wenzelm@40879
   281
"no_abbrevs" with inverted meaning.
wenzelm@38767
   282
wenzelm@40878
   283
* More systematic naming of some configuration options.
huffman@41294
   284
INCOMPATIBILITY.
wenzelm@40878
   285
wenzelm@40878
   286
  trace_simp  ~>  simp_trace
wenzelm@40878
   287
  debug_simp  ~>  simp_debug
wenzelm@40878
   288
wenzelm@40291
   289
* Support for real valued configuration options, using simplistic
wenzelm@40291
   290
floating-point notation that coincides with the inner syntax for
wenzelm@40291
   291
float_token.
wenzelm@40291
   292
wenzelm@41594
   293
* Support for real valued preferences (with approximative PGIP type):
wenzelm@41594
   294
front-ends need to accept "pgint" values in float notation.
wenzelm@41594
   295
INCOMPATIBILITY.
wenzelm@41573
   296
wenzelm@41573
   297
* The IsabelleText font now includes Cyrillic, Hebrew, Arabic from
wenzelm@41573
   298
DejaVu Sans.
wenzelm@41573
   299
wenzelm@41594
   300
* Discontinued support for Poly/ML 5.0 and 5.1 versions.
wenzelm@41594
   301
wenzelm@40948
   302
wenzelm@40948
   303
*** Pure ***
wenzelm@40948
   304
wenzelm@41249
   305
* Command 'type_synonym' (with single argument) replaces somewhat
wenzelm@41249
   306
outdated 'types', which is still available as legacy feature for some
wenzelm@41249
   307
time.
wenzelm@41249
   308
wenzelm@41249
   309
* Command 'nonterminal' (with 'and' separated list of arguments)
wenzelm@41249
   310
replaces somewhat outdated 'nonterminals'.  INCOMPATIBILITY.
wenzelm@41229
   311
wenzelm@40965
   312
* Command 'notepad' replaces former 'example_proof' for
wenzelm@41020
   313
experimentation in Isar without any result.  INCOMPATIBILITY.
wenzelm@40965
   314
ballarin@41435
   315
* Locale interpretation commands 'interpret' and 'sublocale' accept
ballarin@41435
   316
lists of equations to map definitions in a locale to appropriate
ballarin@41435
   317
entities in the context of the interpretation.  The 'interpretation'
ballarin@41435
   318
command already provided this functionality.
ballarin@41435
   319
wenzelm@41594
   320
* Diagnostic command 'print_dependencies' prints the locale instances
wenzelm@41594
   321
that would be activated if the specified expression was interpreted in
wenzelm@41594
   322
the current context.  Variant "print_dependencies!" assumes a context
wenzelm@41594
   323
without interpretations.
ballarin@38110
   324
ballarin@38110
   325
* Diagnostic command 'print_interps' prints interpretations in proofs
ballarin@38110
   326
in addition to interpretations in theories.
ballarin@38110
   327
wenzelm@38708
   328
* Discontinued obsolete 'global' and 'local' commands to manipulate
wenzelm@38708
   329
the theory name space.  Rare INCOMPATIBILITY.  The ML functions
wenzelm@38708
   330
Sign.root_path and Sign.local_path may be applied directly where this
wenzelm@38708
   331
feature is still required for historical reasons.
wenzelm@38708
   332
wenzelm@40948
   333
* Discontinued obsolete 'constdefs' command.  INCOMPATIBILITY, use
haftmann@39215
   334
'definition' instead.
haftmann@39215
   335
wenzelm@41574
   336
* The "prems" fact, which refers to the accidental collection of
wenzelm@41574
   337
foundational premises in the context, is now explicitly marked as
wenzelm@41594
   338
legacy feature and will be discontinued soon.  Consider using "assms"
wenzelm@41594
   339
of the head statement or reference facts by explicit names.
wenzelm@41574
   340
wenzelm@40801
   341
* Document antiquotations @{class} and @{type} print classes and type
wenzelm@40801
   342
constructors.
wenzelm@40801
   343
wenzelm@40801
   344
* Document antiquotation @{file} checks file/directory entries within
wenzelm@40801
   345
the local file system.
haftmann@39305
   346
ballarin@38110
   347
haftmann@37387
   348
*** HOL ***
haftmann@37387
   349
wenzelm@41594
   350
* Coercive subtyping: functions can be declared as coercions and type
wenzelm@41594
   351
inference will add them as necessary upon input of a term.  Theory
wenzelm@41594
   352
Complex_Main declares real :: nat => real and real :: int => real as
wenzelm@41594
   353
coercions. A coercion function f is declared like this:
wenzelm@40939
   354
wenzelm@40939
   355
  declare [[coercion f]]
nipkow@40866
   356
wenzelm@41571
   357
To lift coercions through type constructors (e.g. from nat => real to
nipkow@40866
   358
nat list => real list), map functions can be declared, e.g.
nipkow@40866
   359
wenzelm@40939
   360
  declare [[coercion_map map]]
wenzelm@40939
   361
wenzelm@40939
   362
Currently coercion inference is activated only in theories including
wenzelm@40939
   363
real numbers, i.e. descendants of Complex_Main.  This is controlled by
wenzelm@41020
   364
the configuration option "coercion_enabled", e.g. it can be enabled in
wenzelm@40939
   365
other theories like this:
wenzelm@40939
   366
wenzelm@40939
   367
  declare [[coercion_enabled]]
nipkow@40866
   368
wenzelm@41571
   369
* Command 'partial_function' provides basic support for recursive
wenzelm@41571
   370
function definitions over complete partial orders.  Concrete instances
krauss@40183
   371
are provided for i) the option type, ii) tail recursion on arbitrary
wenzelm@41571
   372
types, and iii) the heap monad of Imperative_HOL.  See
wenzelm@41571
   373
src/HOL/ex/Fundefs.thy and src/HOL/Imperative_HOL/ex/Linked_Lists.thy
wenzelm@41571
   374
for examples.
krauss@40183
   375
wenzelm@41571
   376
* Function package: f.psimps rules are no longer implicitly declared
wenzelm@41571
   377
as [simp].  INCOMPATIBILITY.
haftmann@41398
   378
haftmann@41398
   379
* Datatype package: theorems generated for executable equality (class
wenzelm@41571
   380
"eq") carry proper names and are treated as default code equations.
wenzelm@41571
   381
wenzelm@41594
   382
* Inductive package: now offers command 'inductive_simps' to
wenzelm@41594
   383
automatically derive instantiated and simplified equations for
wenzelm@41594
   384
inductive predicates, similar to 'inductive_cases'.
wenzelm@41594
   385
wenzelm@41571
   386
* Command 'enriched_type' allows to register properties of the
wenzelm@41571
   387
functorial structure of types.
haftmann@39771
   388
haftmann@39644
   389
* Improved infrastructure for term evaluation using code generator
haftmann@39644
   390
techniques, in particular static evaluation conversions.
haftmann@39644
   391
wenzelm@41594
   392
* Code generator: Scala (2.8 or higher) has been added to the target
wenzelm@41594
   393
languages.
wenzelm@41594
   394
haftmann@41398
   395
* Code generator: globbing constant expressions "*" and "Theory.*"
haftmann@41398
   396
have been replaced by the more idiomatic "_" and "Theory._".
haftmann@41398
   397
INCOMPATIBILITY.
haftmann@41398
   398
haftmann@41398
   399
* Code generator: export_code without explicit file declaration prints
haftmann@41398
   400
to standard output.  INCOMPATIBILITY.
haftmann@41398
   401
haftmann@41398
   402
* Code generator: do not print function definitions for case
haftmann@41398
   403
combinators any longer.
haftmann@41398
   404
wenzelm@41594
   405
* Code generator: simplification with rules determined with
wenzelm@41571
   406
src/Tools/Code/code_simp.ML and method "code_simp".
wenzelm@41571
   407
wenzelm@41594
   408
* Code generator for records: more idiomatic representation of record
wenzelm@40948
   409
types.  Warning: records are not covered by ancient SML code
wenzelm@40948
   410
generation any longer.  INCOMPATIBILITY.  In cases of need, a suitable
wenzelm@40948
   411
rep_datatype declaration helps to succeed then:
haftmann@38537
   412
haftmann@38537
   413
  record 'a foo = ...
haftmann@38537
   414
  ...
haftmann@38537
   415
  rep_datatype foo_ext ...
haftmann@38535
   416
wenzelm@41594
   417
* Records: logical foundation type for records does not carry a
wenzelm@41594
   418
'_type' suffix any longer (obsolete due to authentic syntax).
wenzelm@41594
   419
INCOMPATIBILITY.
wenzelm@41594
   420
haftmann@41398
   421
* Quickcheck now by default uses exhaustive testing instead of random
wenzelm@41571
   422
testing.  Random testing can be invoked by "quickcheck [random]",
wenzelm@41571
   423
exhaustive testing by "quickcheck [exhaustive]".
haftmann@41398
   424
haftmann@41398
   425
* Quickcheck instantiates polymorphic types with small finite
haftmann@41398
   426
datatypes by default. This enables a simple execution mechanism to
haftmann@41398
   427
handle quantifiers and function equality over the finite datatypes.
haftmann@41398
   428
wenzelm@41571
   429
* Quickcheck random generator has been renamed from "code" to
wenzelm@41571
   430
"random".  INCOMPATIBILITY.
haftmann@41398
   431
haftmann@41398
   432
* Quickcheck now has a configurable time limit which is set to 30
haftmann@41398
   433
seconds by default. This can be changed by adding [timeout = n] to the
haftmann@41398
   434
quickcheck command. The time limit for Auto Quickcheck is still set
haftmann@41398
   435
independently.
haftmann@38461
   436
haftmann@38461
   437
* Quickcheck in locales considers interpretations of that locale for
haftmann@38461
   438
counter example search.
haftmann@38461
   439
blanchet@40059
   440
* Sledgehammer:
wenzelm@41571
   441
  - Added "smt" and "remote_smt" provers based on the "smt" proof
wenzelm@41571
   442
    method. See the Sledgehammer manual for details ("isabelle doc
wenzelm@41571
   443
    sledgehammer").
blanchet@40059
   444
  - Renamed commands:
blanchet@40059
   445
    sledgehammer atp_info ~> sledgehammer running_provers
blanchet@40059
   446
    sledgehammer atp_kill ~> sledgehammer kill_provers
blanchet@40059
   447
    sledgehammer available_atps ~> sledgehammer available_provers
blanchet@40059
   448
    INCOMPATIBILITY.
blanchet@40059
   449
  - Renamed options:
blanchet@40059
   450
    sledgehammer [atps = ...] ~> sledgehammer [provers = ...]
blanchet@40062
   451
    sledgehammer [atp = ...] ~> sledgehammer [prover = ...]
blanchet@40341
   452
    sledgehammer [timeout = 77 s] ~> sledgehammer [timeout = 77]
blanchet@40341
   453
    (and "ms" and "min" are no longer supported)
blanchet@40341
   454
    INCOMPATIBILITY.
blanchet@40341
   455
blanchet@40341
   456
* Nitpick:
blanchet@40341
   457
  - Renamed options:
blanchet@40341
   458
    nitpick [timeout = 77 s] ~> nitpick [timeout = 77]
blanchet@40341
   459
    nitpick [tac_timeout = 777 ms] ~> nitpick [tac_timeout = 0.777]
blanchet@40059
   460
    INCOMPATIBILITY.
blanchet@40725
   461
  - Added support for partial quotient types.
blanchet@40725
   462
  - Added local versions of the "Nitpick.register_xxx" functions.
blanchet@40725
   463
  - Added "whack" option.
blanchet@40725
   464
  - Allow registration of quotient types as codatatypes.
blanchet@40725
   465
  - Improved "merge_type_vars" option to merge more types.
blanchet@40725
   466
  - Removed unsound "fast_descrs" option.
blanchet@40725
   467
  - Added custom symmetry breaking for datatypes, making it possible to reach
blanchet@40725
   468
    higher cardinalities.
blanchet@40725
   469
  - Prevent the expansion of too large definitions.
blanchet@39957
   470
wenzelm@41571
   471
* Proof methods "metis" and "meson" now have configuration options
wenzelm@41571
   472
"meson_trace", "metis_trace", and "metis_verbose" that can be enabled
wenzelm@41571
   473
to diagnose these tools. E.g.
wenzelm@41571
   474
wenzelm@41571
   475
    using [[metis_trace = true]]
wenzelm@41571
   476
haftmann@41398
   477
* Auto Solve: Renamed "Auto Solve Direct".  The tool is now available
haftmann@41398
   478
manually as command 'solve_direct'.
haftmann@41398
   479
boehmes@41601
   480
* The default SMT solver Z3 must be enabled explicitly (due to
boehmes@41601
   481
licensing issues) by setting the environment variable
wenzelm@41603
   482
Z3_NON_COMMERCIAL in etc/settings of the component, for example.  For
wenzelm@41603
   483
commercial applications, the SMT solver CVC3 is provided as fall-back;
wenzelm@41603
   484
changing the SMT solver is done via the configuration option
wenzelm@41603
   485
"smt_solver".
boehmes@41432
   486
boehmes@41432
   487
* Remote SMT solvers need to be referred to by the "remote_" prefix,
wenzelm@41571
   488
i.e. "remote_cvc3" and "remote_z3".
wenzelm@41571
   489
wenzelm@41571
   490
* Added basic SMT support for datatypes, records, and typedefs using
wenzelm@41571
   491
the oracle mode (no proofs).  Direct support of pairs has been dropped
wenzelm@41571
   492
in exchange (pass theorems fst_conv snd_conv pair_collapse to the SMT
wenzelm@41571
   493
support for a similar behavior).  Minor INCOMPATIBILITY.
boehmes@41432
   494
boehmes@40162
   495
* Changed SMT configuration options:
boehmes@40162
   496
  - Renamed:
boehmes@41432
   497
    z3_proofs ~> smt_oracle (with inverted meaning)
boehmes@40162
   498
    z3_trace_assms ~> smt_trace_used_facts
boehmes@40162
   499
    INCOMPATIBILITY.
boehmes@40162
   500
  - Added:
boehmes@40424
   501
    smt_verbose
boehmes@41432
   502
    smt_random_seed
boehmes@40424
   503
    smt_datatypes
boehmes@41432
   504
    smt_infer_triggers
boehmes@41432
   505
    smt_monomorph_limit
boehmes@40162
   506
    cvc3_options
boehmes@41432
   507
    remote_cvc3_options
boehmes@41432
   508
    remote_z3_options
boehmes@40162
   509
    yices_options
blanchet@39957
   510
wenzelm@40948
   511
* Boogie output files (.b2i files) need to be declared in the theory
wenzelm@40948
   512
header.
boehmes@40580
   513
wenzelm@41594
   514
* Simplification procedure "list_to_set_comprehension" rewrites list
wenzelm@41594
   515
comprehensions applied to List.set to set comprehensions.  Occasional
wenzelm@41594
   516
INCOMPATIBILITY, may be deactivated like this:
wenzelm@41594
   517
wenzelm@41594
   518
  declare [[simproc del: list_to_set_comprehension]]
wenzelm@41594
   519
wenzelm@41573
   520
* Removed old version of primrec package.  INCOMPATIBILITY.
haftmann@41398
   521
haftmann@41398
   522
* Removed simplifier congruence rule of "prod_case", as has for long
haftmann@41398
   523
been the case with "split".  INCOMPATIBILITY.
haftmann@41398
   524
haftmann@41398
   525
* String.literal is a type, but not a datatype.  INCOMPATIBILITY.
haftmann@41398
   526
krauss@40388
   527
* Removed [split_format ... and ... and ...] version of
krauss@40388
   528
[split_format].  Potential INCOMPATIBILITY.
krauss@40388
   529
wenzelm@41571
   530
* Predicate "sorted" now defined inductively, with nice induction
wenzelm@41571
   531
rules.  INCOMPATIBILITY: former sorted.simps now named sorted_simps.
haftmann@41398
   532
haftmann@41398
   533
* Constant "contents" renamed to "the_elem", to free the generic name
haftmann@41398
   534
contents for other uses.  INCOMPATIBILITY.
haftmann@41398
   535
haftmann@41398
   536
* Renamed class eq and constant eq (for code generation) to class
haftmann@41398
   537
equal and constant equal, plus renaming of related facts and various
haftmann@41398
   538
tuning.  INCOMPATIBILITY.
haftmann@41398
   539
haftmann@41398
   540
* Dropped type classes mult_mono and mult_mono1.  INCOMPATIBILITY.
haftmann@41398
   541
wenzelm@41571
   542
* Removed output syntax "'a ~=> 'b" for "'a => 'b option".
wenzelm@41571
   543
INCOMPATIBILITY.
haftmann@41398
   544
haftmann@41398
   545
* Renamed theory Fset to Cset, type Fset.fset to Cset.set, in order to
haftmann@41398
   546
avoid confusion with finite sets.  INCOMPATIBILITY.
haftmann@41398
   547
haftmann@41398
   548
* Abandoned locales equiv, congruent and congruent2 for equivalence
haftmann@41398
   549
relations.  INCOMPATIBILITY: use equivI rather than equiv_intro (same
haftmann@41398
   550
for congruent(2)).
haftmann@41398
   551
haftmann@41398
   552
* Some previously unqualified names have been qualified:
haftmann@41398
   553
haftmann@41398
   554
  types
haftmann@41398
   555
    bool ~> HOL.bool
haftmann@41398
   556
    nat ~> Nat.nat
haftmann@41398
   557
haftmann@41398
   558
  constants
haftmann@41398
   559
    Trueprop ~> HOL.Trueprop
haftmann@41398
   560
    True ~> HOL.True
haftmann@41398
   561
    False ~> HOL.False
haftmann@41398
   562
    op & ~> HOL.conj
haftmann@41398
   563
    op | ~> HOL.disj
haftmann@41398
   564
    op --> ~> HOL.implies
haftmann@41398
   565
    op = ~> HOL.eq
haftmann@41398
   566
    Not ~> HOL.Not
haftmann@41398
   567
    The ~> HOL.The
haftmann@41398
   568
    All ~> HOL.All
haftmann@41398
   569
    Ex ~> HOL.Ex
haftmann@41398
   570
    Ex1 ~> HOL.Ex1
haftmann@41398
   571
    Let ~> HOL.Let
haftmann@41398
   572
    If ~> HOL.If
haftmann@41398
   573
    Ball ~> Set.Ball
haftmann@41398
   574
    Bex ~> Set.Bex
haftmann@41398
   575
    Suc ~> Nat.Suc
haftmann@41398
   576
    Pair ~> Product_Type.Pair
haftmann@41398
   577
    fst ~> Product_Type.fst
haftmann@41398
   578
    snd ~> Product_Type.snd
haftmann@41398
   579
    curry ~> Product_Type.curry
haftmann@41398
   580
    op : ~> Set.member
haftmann@41398
   581
    Collect ~> Set.Collect
haftmann@41398
   582
haftmann@41398
   583
INCOMPATIBILITY.
haftmann@41398
   584
haftmann@41398
   585
* More canonical naming convention for some fundamental definitions:
haftmann@41398
   586
haftmann@41398
   587
    bot_bool_eq ~> bot_bool_def
haftmann@41398
   588
    top_bool_eq ~> top_bool_def
haftmann@41398
   589
    inf_bool_eq ~> inf_bool_def
haftmann@41398
   590
    sup_bool_eq ~> sup_bool_def
haftmann@41398
   591
    bot_fun_eq  ~> bot_fun_def
haftmann@41398
   592
    top_fun_eq  ~> top_fun_def
haftmann@41398
   593
    inf_fun_eq  ~> inf_fun_def
haftmann@41398
   594
    sup_fun_eq  ~> sup_fun_def
haftmann@41398
   595
haftmann@41398
   596
INCOMPATIBILITY.
haftmann@41398
   597
haftmann@41398
   598
* More stylized fact names:
haftmann@41398
   599
haftmann@41398
   600
  expand_fun_eq ~> fun_eq_iff
haftmann@41398
   601
  expand_set_eq ~> set_eq_iff
haftmann@41398
   602
  set_ext       ~> set_eqI
haftmann@41398
   603
  nat_number    ~> eval_nat_numeral
haftmann@41398
   604
haftmann@41398
   605
INCOMPATIBILITY.
haftmann@41398
   606
wenzelm@41571
   607
* Refactoring of code-generation specific operations in theory List:
haftmann@41398
   608
haftmann@41398
   609
  constants
haftmann@41398
   610
    null ~> List.null
haftmann@41398
   611
haftmann@41398
   612
  facts
haftmann@41398
   613
    mem_iff ~> member_def
haftmann@41398
   614
    null_empty ~> null_def
haftmann@41398
   615
haftmann@41398
   616
INCOMPATIBILITY.  Note that these were not supposed to be used
haftmann@41398
   617
regularly unless for striking reasons; their main purpose was code
haftmann@41398
   618
generation.
haftmann@41398
   619
haftmann@41398
   620
Various operations from the Haskell prelude are used for generating
haftmann@41398
   621
Haskell code.
haftmann@41398
   622
wenzelm@41571
   623
* Term "bij f" is now an abbreviation of "bij_betw f UNIV UNIV".  Term
wenzelm@41571
   624
"surj f" is now an abbreviation of "range f = UNIV".  The theorems
wenzelm@41571
   625
bij_def and surj_def are unchanged.  INCOMPATIBILITY.
haftmann@41398
   626
haftmann@41398
   627
* Abolished some non-alphabetic type names: "prod" and "sum" replace
haftmann@41398
   628
"*" and "+" respectively.  INCOMPATIBILITY.
haftmann@41398
   629
haftmann@41398
   630
* Name "Plus" of disjoint sum operator "<+>" is now hidden.  Write
wenzelm@41571
   631
"Sum_Type.Plus" instead.
haftmann@41398
   632
haftmann@41398
   633
* Constant "split" has been merged with constant "prod_case"; names of
haftmann@41398
   634
ML functions, facts etc. involving split have been retained so far,
haftmann@41398
   635
though.  INCOMPATIBILITY.
haftmann@41398
   636
haftmann@41398
   637
* Dropped old infix syntax "_ mem _" for List.member; use "_ : set _"
haftmann@41398
   638
instead.  INCOMPATIBILITY.
haftmann@41398
   639
wenzelm@41571
   640
* Removed lemma "Option.is_none_none" which duplicates "is_none_def".
haftmann@41398
   641
INCOMPATIBILITY.
haftmann@41398
   642
wenzelm@41594
   643
* Former theory Library/Enum is now part of the HOL-Main image.
wenzelm@41594
   644
INCOMPATIBILITY: all constants of the Enum theory now have to be
wenzelm@41594
   645
referred to by its qualified name.
wenzelm@41594
   646
wenzelm@41594
   647
  enum    ~>  Enum.enum
wenzelm@41594
   648
  nlists  ~>  Enum.nlists
wenzelm@41594
   649
  product ~>  Enum.product
wenzelm@41594
   650
wenzelm@41594
   651
* Theory Library/Monad_Syntax provides do-syntax for monad types.
wenzelm@41594
   652
Syntax in Library/State_Monad has been changed to avoid ambiguities.
wenzelm@41594
   653
INCOMPATIBILITY.
wenzelm@41594
   654
wenzelm@41594
   655
* Theory Library/SetsAndFunctions has been split into
wenzelm@41594
   656
Library/Function_Algebras and Library/Set_Algebras; canonical names
wenzelm@41594
   657
for instance definitions for functions; various improvements.
wenzelm@41594
   658
INCOMPATIBILITY.
wenzelm@41594
   659
wenzelm@41594
   660
* Theory Library/Multiset provides stable quicksort implementation of
wenzelm@41594
   661
sort_key.
wenzelm@41594
   662
wenzelm@41594
   663
* Theory Library/Multiset: renamed empty_idemp ~> empty_neutral.
wenzelm@41594
   664
INCOMPATIBILITY.
wenzelm@41594
   665
wenzelm@41594
   666
* Session Multivariate_Analysis: introduced a type class for euclidean
wenzelm@41594
   667
space.  Most theorems are now stated in terms of euclidean spaces
wenzelm@41594
   668
instead of finite cartesian products.
wenzelm@41594
   669
wenzelm@41594
   670
  types
wenzelm@41594
   671
    real ^ 'n ~>  'a::real_vector
wenzelm@41594
   672
              ~>  'a::euclidean_space
wenzelm@41594
   673
              ~>  'a::ordered_euclidean_space
wenzelm@41594
   674
        (depends on your needs)
wenzelm@41594
   675
wenzelm@41594
   676
  constants
wenzelm@41594
   677
     _ $ _        ~> _ $$ _
wenzelm@41594
   678
     \<chi> x. _  ~> \<chi>\<chi> x. _
wenzelm@41594
   679
     CARD('n)     ~> DIM('a)
wenzelm@41594
   680
wenzelm@41594
   681
Also note that the indices are now natural numbers and not from some
wenzelm@41594
   682
finite type. Finite cartesian products of euclidean spaces, products
wenzelm@41594
   683
of euclidean spaces the real and complex numbers are instantiated to
wenzelm@41594
   684
be euclidean_spaces.  INCOMPATIBILITY.
wenzelm@41594
   685
wenzelm@41594
   686
* Session Probability: introduced pextreal as positive extended real
wenzelm@41594
   687
numbers.  Use pextreal as value for measures.  Introduce the
wenzelm@41594
   688
Radon-Nikodym derivative, product spaces and Fubini's theorem for
wenzelm@41594
   689
arbitrary sigma finite measures.  Introduces Lebesgue measure based on
wenzelm@41594
   690
the integral in Multivariate Analysis.  INCOMPATIBILITY.
wenzelm@41594
   691
wenzelm@41594
   692
* Session Imperative_HOL: revamped, corrected dozens of inadequacies.
wenzelm@41594
   693
INCOMPATIBILITY.
wenzelm@41594
   694
wenzelm@41594
   695
* Session SPARK (with image HOL-SPARK) provides commands to load and
wenzelm@41594
   696
prove verification conditions generated by the SPARK Ada program
wenzelm@41594
   697
verifier.  See also src/HOL/SPARK and src/HOL/SPARK/Examples.
berghofe@41567
   698
huffman@40621
   699
ballarin@41433
   700
*** HOL-Algebra ***
ballarin@41433
   701
ballarin@41433
   702
* Theorems for additive ring operations (locale abelian_monoid and
ballarin@41433
   703
descendants) are generated by interpretation from their multiplicative
ballarin@41434
   704
counterparts.  Names (in particular theorem names) have the mandatory
ballarin@41434
   705
qualifier 'add'.  Previous theorem names are redeclared for
ballarin@41434
   706
compatibility.
ballarin@41434
   707
wenzelm@41571
   708
* Structure "int_ring" is now an abbreviation (previously a
ballarin@41434
   709
definition).  This fits more natural with advanced interpretations.
ballarin@41433
   710
ballarin@41433
   711
huffman@40621
   712
*** HOLCF ***
huffman@40621
   713
huffman@40621
   714
* The domain package now runs in definitional mode by default: The
wenzelm@41571
   715
former command 'new_domain' is now called 'domain'.  To use the domain
huffman@40621
   716
package in its original axiomatic mode, use 'domain (unsafe)'.
huffman@40621
   717
INCOMPATIBILITY.
huffman@40621
   718
wenzelm@41571
   719
* The new class "domain" is now the default sort.  Class "predomain"
wenzelm@41571
   720
is an unpointed version of "domain". Theories can be updated by
wenzelm@41571
   721
replacing sort annotations as shown below.  INCOMPATIBILITY.
huffman@40621
   722
huffman@40621
   723
  'a::type ~> 'a::countable
huffman@40621
   724
  'a::cpo  ~> 'a::predomain
huffman@40621
   725
  'a::pcpo ~> 'a::domain
huffman@40621
   726
wenzelm@41571
   727
* The old type class "rep" has been superseded by class "domain".
huffman@40621
   728
Accordingly, users of the definitional package must remove any
wenzelm@41571
   729
"default_sort rep" declarations.  INCOMPATIBILITY.
huffman@40621
   730
huffman@41401
   731
* The domain package (definitional mode) now supports unpointed
huffman@41401
   732
predomain argument types, as long as they are marked 'lazy'. (Strict
wenzelm@41571
   733
arguments must be in class "domain".) For example, the following
huffman@41401
   734
domain definition now works:
huffman@41401
   735
huffman@41401
   736
  domain natlist = nil | cons (lazy "nat discr") (lazy "natlist")
huffman@41401
   737
huffman@41401
   738
* Theory HOLCF/Library/HOL_Cpo provides cpo and predomain class
wenzelm@41571
   739
instances for types from main HOL: bool, nat, int, char, 'a + 'b,
wenzelm@41571
   740
'a option, and 'a list.  Additionally, it configures fixrec and the
wenzelm@41571
   741
domain package to work with these types.  For example:
huffman@41401
   742
huffman@41401
   743
  fixrec isInl :: "('a + 'b) u -> tr"
huffman@41401
   744
    where "isInl$(up$(Inl x)) = TT" | "isInl$(up$(Inr y)) = FF"
huffman@41401
   745
huffman@41401
   746
  domain V = VFun (lazy "V -> V") | VCon (lazy "nat") (lazy "V list")
huffman@41401
   747
wenzelm@41571
   748
* The "(permissive)" option of fixrec has been replaced with a
wenzelm@41571
   749
per-equation "(unchecked)" option. See
wenzelm@41571
   750
src/HOL/HOLCF/Tutorial/Fixrec_ex.thy for examples. INCOMPATIBILITY.
wenzelm@41571
   751
wenzelm@41571
   752
* The "bifinite" class no longer fixes a constant "approx"; the class
wenzelm@41571
   753
now just asserts that such a function exists.  INCOMPATIBILITY.
wenzelm@41571
   754
wenzelm@41571
   755
* Former type "alg_defl" has been renamed to "defl".  HOLCF no longer
huffman@41287
   756
defines an embedding of type 'a defl into udom by default; instances
wenzelm@41571
   757
of "bifinite" and "domain" classes are available in
wenzelm@41571
   758
src/HOL/HOLCF/Library/Defl_Bifinite.thy.
wenzelm@41571
   759
wenzelm@41571
   760
* The syntax "REP('a)" has been replaced with "DEFL('a)".
wenzelm@41571
   761
wenzelm@41571
   762
* The predicate "directed" has been removed.  INCOMPATIBILITY.
wenzelm@41571
   763
wenzelm@41571
   764
* The type class "finite_po" has been removed.  INCOMPATIBILITY.
wenzelm@41571
   765
wenzelm@41571
   766
* The function "cprod_map" has been renamed to "prod_map".
huffman@41401
   767
INCOMPATIBILITY.
huffman@41401
   768
huffman@41401
   769
* The monadic bind operator on each powerdomain has new binder syntax
wenzelm@41571
   770
similar to sets, e.g. "\<Union>\<sharp>x\<in>xs. t" represents
wenzelm@41571
   771
"upper_bind\<cdot>xs\<cdot>(\<Lambda> x. t)".
huffman@41401
   772
huffman@41401
   773
* The infix syntax for binary union on each powerdomain has changed
wenzelm@41571
   774
from e.g. "+\<sharp>" to "\<union>\<sharp>", for consistency with set
wenzelm@41571
   775
syntax.  INCOMPATIBILITY.
wenzelm@41571
   776
wenzelm@41571
   777
* The constant "UU" has been renamed to "bottom".  The syntax "UU" is
huffman@41429
   778
still supported as an input translation.
huffman@41429
   779
huffman@40621
   780
* Renamed some theorems (the original names are also still available).
wenzelm@41571
   781
huffman@40621
   782
  expand_fun_below   ~> fun_below_iff
huffman@40621
   783
  below_fun_ext      ~> fun_belowI
huffman@40621
   784
  expand_cfun_eq     ~> cfun_eq_iff
huffman@40621
   785
  ext_cfun           ~> cfun_eqI
huffman@40621
   786
  expand_cfun_below  ~> cfun_below_iff
huffman@40621
   787
  below_cfun_ext     ~> cfun_belowI
huffman@40621
   788
  cont2cont_Rep_CFun ~> cont2cont_APP
huffman@40621
   789
huffman@40621
   790
* The Abs and Rep functions for various types have changed names.
wenzelm@40948
   791
Related theorem names have also changed to match. INCOMPATIBILITY.
wenzelm@41571
   792
huffman@40621
   793
  Rep_CFun  ~> Rep_cfun
huffman@40621
   794
  Abs_CFun  ~> Abs_cfun
huffman@40621
   795
  Rep_Sprod ~> Rep_sprod
huffman@40621
   796
  Abs_Sprod ~> Abs_sprod
huffman@40621
   797
  Rep_Ssum  ~> Rep_ssum
huffman@40621
   798
  Abs_Ssum  ~> Abs_ssum
huffman@40621
   799
huffman@40621
   800
* Lemmas with names of the form *_defined_iff or *_strict_iff have
wenzelm@41571
   801
been renamed to *_bottom_iff.  INCOMPATIBILITY.
huffman@40621
   802
huffman@40621
   803
* Various changes to bisimulation/coinduction with domain package:
wenzelm@41571
   804
wenzelm@41571
   805
  - Definitions of "bisim" constants no longer mention definedness.
wenzelm@41571
   806
  - With mutual recursion, "bisim" predicate is now curried.
huffman@40621
   807
  - With mutual recursion, each type gets a separate coind theorem.
huffman@40621
   808
  - Variable names in bisim_def and coinduct rules have changed.
wenzelm@41571
   809
huffman@40621
   810
INCOMPATIBILITY.
huffman@40621
   811
wenzelm@41571
   812
* Case combinators generated by the domain package for type "foo" are
wenzelm@41571
   813
now named "foo_case" instead of "foo_when".  INCOMPATIBILITY.
huffman@40621
   814
huffman@40771
   815
* Several theorems have been renamed to more accurately reflect the
wenzelm@41571
   816
names of constants and types involved.  INCOMPATIBILITY.
wenzelm@41571
   817
huffman@40771
   818
  thelub_const    ~> lub_const
huffman@40771
   819
  lub_const       ~> is_lub_const
huffman@40771
   820
  thelubI         ~> lub_eqI
huffman@40771
   821
  is_lub_lub      ~> is_lubD2
huffman@40771
   822
  lubI            ~> is_lub_lub
huffman@40771
   823
  unique_lub      ~> is_lub_unique
huffman@40771
   824
  is_ub_lub       ~> is_lub_rangeD1
huffman@40771
   825
  lub_bin_chain   ~> is_lub_bin_chain
huffman@41030
   826
  lub_fun         ~> is_lub_fun
huffman@41030
   827
  thelub_fun      ~> lub_fun
huffman@41031
   828
  thelub_cfun     ~> lub_cfun
huffman@40771
   829
  thelub_Pair     ~> lub_Pair
huffman@40771
   830
  lub_cprod       ~> is_lub_prod
huffman@40771
   831
  thelub_cprod    ~> lub_prod
huffman@40771
   832
  minimal_cprod   ~> minimal_prod
huffman@40771
   833
  inst_cprod_pcpo ~> inst_prod_pcpo
huffman@41430
   834
  UU_I            ~> bottomI
huffman@41430
   835
  compact_UU      ~> compact_bottom
huffman@41430
   836
  deflation_UU    ~> deflation_bottom
huffman@41430
   837
  finite_deflation_UU ~> finite_deflation_bottom
huffman@40771
   838
wenzelm@41571
   839
* Many legacy theorem names have been discontinued.  INCOMPATIBILITY.
wenzelm@41571
   840
huffman@40621
   841
  sq_ord_less_eq_trans ~> below_eq_trans
huffman@40621
   842
  sq_ord_eq_less_trans ~> eq_below_trans
huffman@40621
   843
  refl_less            ~> below_refl
huffman@40621
   844
  trans_less           ~> below_trans
huffman@40621
   845
  antisym_less         ~> below_antisym
huffman@40621
   846
  antisym_less_inverse ~> po_eq_conv [THEN iffD1]
huffman@40621
   847
  box_less             ~> box_below
huffman@40621
   848
  rev_trans_less       ~> rev_below_trans
huffman@40621
   849
  not_less2not_eq      ~> not_below2not_eq
huffman@40621
   850
  less_UU_iff          ~> below_UU_iff
huffman@40621
   851
  flat_less_iff        ~> flat_below_iff
huffman@40621
   852
  adm_less             ~> adm_below
huffman@40621
   853
  adm_not_less         ~> adm_not_below
huffman@40621
   854
  adm_compact_not_less ~> adm_compact_not_below
huffman@40621
   855
  less_fun_def         ~> below_fun_def
huffman@40621
   856
  expand_fun_less      ~> fun_below_iff
huffman@40621
   857
  less_fun_ext         ~> fun_belowI
huffman@40621
   858
  less_discr_def       ~> below_discr_def
huffman@40621
   859
  discr_less_eq        ~> discr_below_eq
huffman@40621
   860
  less_unit_def        ~> below_unit_def
huffman@40621
   861
  less_cprod_def       ~> below_prod_def
huffman@40621
   862
  prod_lessI           ~> prod_belowI
huffman@40621
   863
  Pair_less_iff        ~> Pair_below_iff
huffman@40621
   864
  fst_less_iff         ~> fst_below_iff
huffman@40621
   865
  snd_less_iff         ~> snd_below_iff
huffman@40621
   866
  expand_cfun_less     ~> cfun_below_iff
huffman@40621
   867
  less_cfun_ext        ~> cfun_belowI
huffman@40621
   868
  injection_less       ~> injection_below
huffman@40621
   869
  less_up_def          ~> below_up_def
huffman@40621
   870
  not_Iup_less         ~> not_Iup_below
huffman@40621
   871
  Iup_less             ~> Iup_below
huffman@40621
   872
  up_less              ~> up_below
huffman@40621
   873
  Def_inject_less_eq   ~> Def_below_Def
huffman@40621
   874
  Def_less_is_eq       ~> Def_below_iff
huffman@40621
   875
  spair_less_iff       ~> spair_below_iff
huffman@40621
   876
  less_sprod           ~> below_sprod
huffman@40621
   877
  spair_less           ~> spair_below
huffman@40621
   878
  sfst_less_iff        ~> sfst_below_iff
huffman@40621
   879
  ssnd_less_iff        ~> ssnd_below_iff
huffman@40621
   880
  fix_least_less       ~> fix_least_below
huffman@40621
   881
  dist_less_one        ~> dist_below_one
huffman@40621
   882
  less_ONE             ~> below_ONE
huffman@40621
   883
  ONE_less_iff         ~> ONE_below_iff
huffman@40621
   884
  less_sinlD           ~> below_sinlD
huffman@40621
   885
  less_sinrD           ~> below_sinrD
huffman@40621
   886
huffman@40621
   887
wenzelm@40948
   888
*** FOL and ZF ***
haftmann@38522
   889
wenzelm@41310
   890
* All constant names are now qualified internally and use proper
wenzelm@41310
   891
identifiers, e.g. "IFOL.eq" instead of "op =".  INCOMPATIBILITY.
wenzelm@41310
   892
haftmann@38522
   893
wenzelm@37868
   894
*** ML ***
wenzelm@37868
   895
wenzelm@41594
   896
* Antiquotation @{assert} inlines a function bool -> unit that raises
wenzelm@41594
   897
Fail if the argument is false.  Due to inlining the source position of
wenzelm@41594
   898
failed assertions is included in the error output.
wenzelm@41594
   899
wenzelm@41594
   900
* Discontinued antiquotation @{theory_ref}, which is obsolete since ML
wenzelm@41594
   901
text is in practice always evaluated with a stable theory checkpoint.
wenzelm@41594
   902
Minor INCOMPATIBILITY, use (Theory.check_thy @{theory}) instead.
wenzelm@41594
   903
wenzelm@41594
   904
* Antiquotation @{theory A} refers to theory A from the ancestry of
wenzelm@41594
   905
the current context, not any accidental theory loader state as before.
wenzelm@41594
   906
Potential INCOMPATIBILITY, subtle change in semantics.
wenzelm@41228
   907
wenzelm@40956
   908
* Syntax.pretty_priority (default 0) configures the required priority
wenzelm@40956
   909
of pretty-printed output and thus affects insertion of parentheses.
wenzelm@40956
   910
wenzelm@40959
   911
* Syntax.default_root (default "any") configures the inner syntax
wenzelm@40959
   912
category (nonterminal symbol) for parsing of terms.
wenzelm@40959
   913
wenzelm@40722
   914
* Former exception Library.UnequalLengths now coincides with
wenzelm@40722
   915
ListPair.UnequalLengths.
wenzelm@40722
   916
wenzelm@41594
   917
* Renamed structure MetaSimplifier to Raw_Simplifier.  Note that the
wenzelm@41594
   918
main functionality is provided by structure Simplifier.
wenzelm@41594
   919
wenzelm@40627
   920
* Renamed raw "explode" function to "raw_explode" to emphasize its
wenzelm@40627
   921
meaning.  Note that internally to Isabelle, Symbol.explode is used in
wenzelm@40627
   922
almost all situations.
wenzelm@40627
   923
wenzelm@40318
   924
* Discontinued obsolete function sys_error and exception SYS_ERROR.
wenzelm@40318
   925
See implementation manual for further details on exceptions in
wenzelm@40318
   926
Isabelle/ML.
wenzelm@40318
   927
wenzelm@39616
   928
* Renamed setmp_noncritical to Unsynchronized.setmp to emphasize its
wenzelm@39616
   929
meaning.
wenzelm@39616
   930
wenzelm@39557
   931
* Renamed structure PureThy to Pure_Thy and moved most of its
wenzelm@39557
   932
operations to structure Global_Theory, to emphasize that this is
wenzelm@39557
   933
rarely-used global-only stuff.
wenzelm@39557
   934
wenzelm@39513
   935
* Discontinued Output.debug.  Minor INCOMPATIBILITY, use plain writeln
wenzelm@39513
   936
instead (or tracing for high-volume output).
wenzelm@39513
   937
wenzelm@38980
   938
* Configuration option show_question_marks only affects regular pretty
wenzelm@38980
   939
printing of types and terms, not raw Term.string_of_vname.
wenzelm@38980
   940
wenzelm@39164
   941
* ML_Context.thm and ML_Context.thms are no longer pervasive.  Rare
wenzelm@39164
   942
INCOMPATIBILITY, superseded by static antiquotations @{thm} and
wenzelm@39164
   943
@{thms} for most purposes.
wenzelm@39164
   944
wenzelm@41594
   945
* ML structure Unsynchronized is never opened, not even in Isar
wenzelm@38980
   946
interaction mode as before.  Old Unsynchronized.set etc. have been
wenzelm@38980
   947
discontinued -- use plain := instead.  This should be *rare* anyway,
wenzelm@38980
   948
since modern tools always work via official context data, notably
wenzelm@38980
   949
configuration options.
wenzelm@38980
   950
wenzelm@39239
   951
* Parallel and asynchronous execution requires special care concerning
wenzelm@39239
   952
interrupts.  Structure Exn provides some convenience functions that
wenzelm@39239
   953
avoid working directly with raw Interrupt.  User code must not absorb
wenzelm@39239
   954
interrupts -- intermediate handling (for cleanup etc.) needs to be
wenzelm@39239
   955
followed by re-raising of the original exception.  Another common
wenzelm@39239
   956
source of mistakes are "handle _" patterns, which make the meaning of
wenzelm@39239
   957
the program subject to physical effects of the environment.
wenzelm@39239
   958
wenzelm@37868
   959
wenzelm@37868
   960
wenzelm@37144
   961
New in Isabelle2009-2 (June 2010)
wenzelm@37144
   962
---------------------------------
haftmann@33993
   963
wenzelm@35260
   964
*** General ***
wenzelm@35260
   965
wenzelm@35436
   966
* Authentic syntax for *all* logical entities (type classes, type
wenzelm@35436
   967
constructors, term constants): provides simple and robust
wenzelm@35436
   968
correspondence between formal entities and concrete syntax.  Within
wenzelm@35436
   969
the parse tree / AST representations, "constants" are decorated by
wenzelm@35436
   970
their category (class, type, const) and spelled out explicitly with
wenzelm@35436
   971
their full internal name.
wenzelm@35436
   972
wenzelm@35436
   973
Substantial INCOMPATIBILITY concerning low-level syntax declarations
wenzelm@35436
   974
and translations (translation rules and translation functions in ML).
wenzelm@35436
   975
Some hints on upgrading:
wenzelm@35260
   976
wenzelm@35260
   977
  - Many existing uses of 'syntax' and 'translations' can be replaced
wenzelm@35436
   978
    by more modern 'type_notation', 'notation' and 'abbreviation',
wenzelm@35436
   979
    which are independent of this issue.
wenzelm@35260
   980
wenzelm@35260
   981
  - 'translations' require markup within the AST; the term syntax
wenzelm@35260
   982
    provides the following special forms:
wenzelm@35260
   983
wenzelm@35260
   984
      CONST c   -- produces syntax version of constant c from context
wenzelm@35261
   985
      XCONST c  -- literally c, checked as constant from context
wenzelm@35261
   986
      c         -- literally c, if declared by 'syntax'
wenzelm@35261
   987
wenzelm@35261
   988
    Plain identifiers are treated as AST variables -- occasionally the
wenzelm@35261
   989
    system indicates accidental variables via the error "rhs contains
wenzelm@35261
   990
    extra variables".
wenzelm@35260
   991
wenzelm@35436
   992
    Type classes and type constructors are marked according to their
wenzelm@35436
   993
    concrete syntax.  Some old translations rules need to be written
wenzelm@35436
   994
    for the "type" category, using type constructor application
wenzelm@35436
   995
    instead of pseudo-term application of the default category
wenzelm@35436
   996
    "logic".
wenzelm@35436
   997
wenzelm@35260
   998
  - 'parse_translation' etc. in ML may use the following
wenzelm@35260
   999
    antiquotations:
wenzelm@35260
  1000
wenzelm@35436
  1001
      @{class_syntax c}   -- type class c within parse tree / AST
wenzelm@35436
  1002
      @{term_syntax c}    -- type constructor c within parse tree / AST
wenzelm@35260
  1003
      @{const_syntax c}   -- ML version of "CONST c" above
wenzelm@35260
  1004
      @{syntax_const c}   -- literally c (checked wrt. 'syntax' declarations)
wenzelm@35260
  1005
wenzelm@35436
  1006
  - Literal types within 'typed_print_translations', i.e. those *not*
wenzelm@35436
  1007
    represented as pseudo-terms are represented verbatim.  Use @{class
wenzelm@35436
  1008
    c} or @{type_name c} here instead of the above syntax
wenzelm@35436
  1009
    antiquotations.
wenzelm@35436
  1010
wenzelm@35260
  1011
Note that old non-authentic syntax was based on unqualified base
wenzelm@35436
  1012
names, so all of the above "constant" names would coincide.  Recall
wenzelm@35436
  1013
that 'print_syntax' and ML_command "set Syntax.trace_ast" help to
wenzelm@35436
  1014
diagnose syntax problems.
wenzelm@35260
  1015
wenzelm@35351
  1016
* Type constructors admit general mixfix syntax, not just infix.
wenzelm@35351
  1017
wenzelm@36508
  1018
* Concrete syntax may be attached to local entities without a proof
wenzelm@36508
  1019
body, too.  This works via regular mixfix annotations for 'fix',
wenzelm@36508
  1020
'def', 'obtain' etc. or via the explicit 'write' command, which is
wenzelm@36508
  1021
similar to the 'notation' command in theory specifications.
wenzelm@36508
  1022
wenzelm@37351
  1023
* Discontinued unnamed infix syntax (legacy feature for many years) --
wenzelm@37351
  1024
need to specify constant name and syntax separately.  Internal ML
wenzelm@37351
  1025
datatype constructors have been renamed from InfixName to Infix etc.
wenzelm@37351
  1026
Minor INCOMPATIBILITY.
wenzelm@37351
  1027
wenzelm@37351
  1028
* Schematic theorem statements need to be explicitly markup as such,
wenzelm@37351
  1029
via commands 'schematic_lemma', 'schematic_theorem',
wenzelm@37351
  1030
'schematic_corollary'.  Thus the relevance of the proof is made
wenzelm@37351
  1031
syntactically clear, which impacts performance in a parallel or
wenzelm@37351
  1032
asynchronous interactive environment.  Minor INCOMPATIBILITY.
wenzelm@37351
  1033
wenzelm@35613
  1034
* Use of cumulative prems via "!" in some proof methods has been
wenzelm@37351
  1035
discontinued (old legacy feature).
wenzelm@35613
  1036
boehmes@35979
  1037
* References 'trace_simp' and 'debug_simp' have been replaced by
wenzelm@36857
  1038
configuration options stored in the context. Enabling tracing (the
wenzelm@36857
  1039
case of debugging is similar) in proofs works via
wenzelm@36857
  1040
wenzelm@36857
  1041
  using [[trace_simp = true]]
wenzelm@36857
  1042
wenzelm@36857
  1043
Tracing is then active for all invocations of the simplifier in
wenzelm@36857
  1044
subsequent goal refinement steps. Tracing may also still be enabled or
wenzelm@40780
  1045
disabled via the ProofGeneral settings menu.
boehmes@35979
  1046
wenzelm@36177
  1047
* Separate commands 'hide_class', 'hide_type', 'hide_const',
wenzelm@36177
  1048
'hide_fact' replace the former 'hide' KIND command.  Minor
wenzelm@36177
  1049
INCOMPATIBILITY.
wenzelm@36177
  1050
wenzelm@37298
  1051
* Improved parallelism of proof term normalization: usedir -p2 -q0 is
wenzelm@37298
  1052
more efficient than combinations with -q1 or -q2.
wenzelm@37298
  1053
wenzelm@35260
  1054
haftmann@34170
  1055
*** Pure ***
haftmann@34170
  1056
wenzelm@37351
  1057
* Proofterms record type-class reasoning explicitly, using the
wenzelm@37351
  1058
"unconstrain" operation internally.  This eliminates all sort
wenzelm@37351
  1059
constraints from a theorem and proof, introducing explicit
wenzelm@37351
  1060
OFCLASS-premises.  On the proof term level, this operation is
wenzelm@37351
  1061
automatically applied at theorem boundaries, such that closed proofs
wenzelm@37351
  1062
are always free of sort constraints.  INCOMPATIBILITY for tools that
wenzelm@37351
  1063
inspect proof terms.
haftmann@36147
  1064
wenzelm@35765
  1065
* Local theory specifications may depend on extra type variables that
wenzelm@35765
  1066
are not present in the result type -- arguments TYPE('a) :: 'a itself
wenzelm@35765
  1067
are added internally.  For example:
wenzelm@35765
  1068
wenzelm@35765
  1069
  definition unitary :: bool where "unitary = (ALL (x::'a) y. x = y)"
wenzelm@35765
  1070
wenzelm@37351
  1071
* Predicates of locales introduced by classes carry a mandatory
wenzelm@37351
  1072
"class" prefix.  INCOMPATIBILITY.
wenzelm@37351
  1073
wenzelm@37351
  1074
* Vacuous class specifications observe default sort.  INCOMPATIBILITY.
wenzelm@37351
  1075
wenzelm@37351
  1076
* Old 'axclass' command has been discontinued.  INCOMPATIBILITY, use
wenzelm@37351
  1077
'class' instead.
wenzelm@37351
  1078
wenzelm@37351
  1079
* Command 'code_reflect' allows to incorporate generated ML code into
wenzelm@37351
  1080
runtime environment; replaces immature code_datatype antiquotation.
wenzelm@37351
  1081
INCOMPATIBILITY.
wenzelm@37351
  1082
wenzelm@37351
  1083
* Code generator: simple concept for abstract datatypes obeying
wenzelm@37351
  1084
invariants.
wenzelm@37351
  1085
wenzelm@36857
  1086
* Code generator: details of internal data cache have no impact on the
wenzelm@36857
  1087
user space functionality any longer.
wenzelm@36857
  1088
wenzelm@37351
  1089
* Methods "unfold_locales" and "intro_locales" ignore non-locale
wenzelm@37351
  1090
subgoals.  This is more appropriate for interpretations with 'where'.
wenzelm@36857
  1091
INCOMPATIBILITY.
haftmann@34170
  1092
wenzelm@36356
  1093
* Command 'example_proof' opens an empty proof body.  This allows to
wenzelm@36356
  1094
experiment with Isar, without producing any persistent result.
wenzelm@36356
  1095
wenzelm@35413
  1096
* Commands 'type_notation' and 'no_type_notation' declare type syntax
wenzelm@35413
  1097
within a local theory context, with explicit checking of the
wenzelm@35413
  1098
constructors involved (in contrast to the raw 'syntax' versions).
wenzelm@35413
  1099
wenzelm@36178
  1100
* Commands 'types' and 'typedecl' now work within a local theory
wenzelm@36178
  1101
context -- without introducing dependencies on parameters or
wenzelm@36178
  1102
assumptions, which is not possible in Isabelle/Pure.
wenzelm@35681
  1103
wenzelm@36857
  1104
* Command 'defaultsort' has been renamed to 'default_sort', it works
wenzelm@36857
  1105
within a local theory context.  Minor INCOMPATIBILITY.
wenzelm@36454
  1106
haftmann@34170
  1107
haftmann@33993
  1108
*** HOL ***
haftmann@33993
  1109
wenzelm@37351
  1110
* Command 'typedef' now works within a local theory context -- without
wenzelm@37351
  1111
introducing dependencies on parameters or assumptions, which is not
wenzelm@37351
  1112
possible in Isabelle/Pure/HOL.  Note that the logical environment may
wenzelm@37351
  1113
contain multiple interpretations of local typedefs (with different
wenzelm@37351
  1114
non-emptiness proofs), even in a global theory context.
wenzelm@37351
  1115
wenzelm@37351
  1116
* New package for quotient types.  Commands 'quotient_type' and
wenzelm@37351
  1117
'quotient_definition' may be used for defining types and constants by
wenzelm@37351
  1118
quotient constructions.  An example is the type of integers created by
wenzelm@37351
  1119
quotienting pairs of natural numbers:
wenzelm@37380
  1120
wenzelm@37351
  1121
  fun
wenzelm@37380
  1122
    intrel :: "(nat * nat) => (nat * nat) => bool"
wenzelm@37351
  1123
  where
wenzelm@37351
  1124
    "intrel (x, y) (u, v) = (x + v = u + y)"
wenzelm@37351
  1125
wenzelm@37380
  1126
  quotient_type int = "nat * nat" / intrel
wenzelm@37351
  1127
    by (auto simp add: equivp_def expand_fun_eq)
wenzelm@37380
  1128
wenzelm@37351
  1129
  quotient_definition
wenzelm@37351
  1130
    "0::int" is "(0::nat, 0::nat)"
wenzelm@37351
  1131
wenzelm@37351
  1132
The method "lifting" can be used to lift of theorems from the
wenzelm@37351
  1133
underlying "raw" type to the quotient type.  The example
wenzelm@37351
  1134
src/HOL/Quotient_Examples/FSet.thy includes such a quotient
wenzelm@37351
  1135
construction and provides a reasoning infrastructure for finite sets.
wenzelm@37351
  1136
wenzelm@37351
  1137
* Renamed Library/Quotient.thy to Library/Quotient_Type.thy to avoid
wenzelm@37351
  1138
clash with new theory Quotient in Main HOL.
wenzelm@37351
  1139
wenzelm@37351
  1140
* Moved the SMT binding into the main HOL session, eliminating
wenzelm@37351
  1141
separate HOL-SMT session.
wenzelm@37351
  1142
haftmann@37020
  1143
* List membership infix mem operation is only an input abbreviation.
haftmann@37020
  1144
INCOMPATIBILITY.
haftmann@37020
  1145
wenzelm@37144
  1146
* Theory Library/Word.thy has been removed.  Use library Word/Word.thy
wenzelm@37144
  1147
for future developements; former Library/Word.thy is still present in
wenzelm@37144
  1148
the AFP entry RSAPPS.
haftmann@36963
  1149
wenzelm@36857
  1150
* Theorem Int.int_induct renamed to Int.int_of_nat_induct and is no
wenzelm@36857
  1151
longer shadowed.  INCOMPATIBILITY.
haftmann@36808
  1152
huffman@36836
  1153
* Dropped theorem duplicate comp_arith; use semiring_norm instead.
huffman@36836
  1154
INCOMPATIBILITY.
huffman@36836
  1155
huffman@36836
  1156
* Dropped theorem RealPow.real_sq_order; use power2_le_imp_le instead.
huffman@36836
  1157
INCOMPATIBILITY.
haftmann@36714
  1158
wenzelm@36857
  1159
* Dropped normalizing_semiring etc; use the facts in semiring classes
wenzelm@36857
  1160
instead.  INCOMPATIBILITY.
wenzelm@36857
  1161
huffman@36979
  1162
* Dropped several real-specific versions of lemmas about floor and
wenzelm@37351
  1163
ceiling; use the generic lemmas from theory "Archimedean_Field"
wenzelm@37351
  1164
instead.  INCOMPATIBILITY.
huffman@36979
  1165
huffman@36979
  1166
  floor_number_of_eq         ~> floor_number_of
huffman@36979
  1167
  le_floor_eq_number_of      ~> number_of_le_floor
huffman@36979
  1168
  le_floor_eq_zero           ~> zero_le_floor
huffman@36979
  1169
  le_floor_eq_one            ~> one_le_floor
huffman@36979
  1170
  floor_less_eq_number_of    ~> floor_less_number_of
huffman@36979
  1171
  floor_less_eq_zero         ~> floor_less_zero
huffman@36979
  1172
  floor_less_eq_one          ~> floor_less_one
huffman@36979
  1173
  less_floor_eq_number_of    ~> number_of_less_floor
huffman@36979
  1174
  less_floor_eq_zero         ~> zero_less_floor
huffman@36979
  1175
  less_floor_eq_one          ~> one_less_floor
huffman@36979
  1176
  floor_le_eq_number_of      ~> floor_le_number_of
huffman@36979
  1177
  floor_le_eq_zero           ~> floor_le_zero
huffman@36979
  1178
  floor_le_eq_one            ~> floor_le_one
huffman@36979
  1179
  floor_subtract_number_of   ~> floor_diff_number_of
huffman@36979
  1180
  floor_subtract_one         ~> floor_diff_one
huffman@36979
  1181
  ceiling_number_of_eq       ~> ceiling_number_of
huffman@36979
  1182
  ceiling_le_eq_number_of    ~> ceiling_le_number_of
huffman@36979
  1183
  ceiling_le_zero_eq         ~> ceiling_le_zero
huffman@36979
  1184
  ceiling_le_eq_one          ~> ceiling_le_one
huffman@36979
  1185
  less_ceiling_eq_number_of  ~> number_of_less_ceiling
huffman@36979
  1186
  less_ceiling_eq_zero       ~> zero_less_ceiling
huffman@36979
  1187
  less_ceiling_eq_one        ~> one_less_ceiling
huffman@36979
  1188
  ceiling_less_eq_number_of  ~> ceiling_less_number_of
huffman@36979
  1189
  ceiling_less_eq_zero       ~> ceiling_less_zero
huffman@36979
  1190
  ceiling_less_eq_one        ~> ceiling_less_one
huffman@36979
  1191
  le_ceiling_eq_number_of    ~> number_of_le_ceiling
huffman@36979
  1192
  le_ceiling_eq_zero         ~> zero_le_ceiling
huffman@36979
  1193
  le_ceiling_eq_one          ~> one_le_ceiling
huffman@36979
  1194
  ceiling_subtract_number_of ~> ceiling_diff_number_of
huffman@36979
  1195
  ceiling_subtract_one       ~> ceiling_diff_one
huffman@36979
  1196
wenzelm@37144
  1197
* Theory "Finite_Set": various folding_XXX locales facilitate the
wenzelm@36857
  1198
application of the various fold combinators on finite sets.
wenzelm@36857
  1199
wenzelm@36857
  1200
* Library theory "RBT" renamed to "RBT_Impl"; new library theory "RBT"
wenzelm@36857
  1201
provides abstract red-black tree type which is backed by "RBT_Impl" as
wenzelm@36857
  1202
implementation.  INCOMPATIBILTY.
haftmann@36147
  1203
huffman@36830
  1204
* Theory Library/Coinductive_List has been removed -- superseded by
wenzelm@35763
  1205
AFP/thys/Coinductive.
wenzelm@35763
  1206
huffman@36829
  1207
* Theory PReal, including the type "preal" and related operations, has
huffman@36829
  1208
been removed.  INCOMPATIBILITY.
huffman@36829
  1209
wenzelm@37380
  1210
* Real: new development using Cauchy Sequences.
wenzelm@37380
  1211
wenzelm@37351
  1212
* Split off theory "Big_Operators" containing setsum, setprod,
wenzelm@37351
  1213
Inf_fin, Sup_fin, Min, Max from theory Finite_Set.  INCOMPATIBILITY.
wenzelm@36857
  1214
wenzelm@36857
  1215
* Theory "Rational" renamed to "Rat", for consistency with "Nat",
wenzelm@36857
  1216
"Int" etc.  INCOMPATIBILITY.
wenzelm@36857
  1217
wenzelm@37351
  1218
* Constant Rat.normalize needs to be qualified.  INCOMPATIBILITY.
wenzelm@37143
  1219
wenzelm@36857
  1220
* New set of rules "ac_simps" provides combined assoc / commute
wenzelm@36857
  1221
rewrites for all interpretations of the appropriate generic locales.
wenzelm@36857
  1222
wenzelm@36857
  1223
* Renamed theory "OrderedGroup" to "Groups" and split theory
wenzelm@36857
  1224
"Ring_and_Field" into theories "Rings" and "Fields"; for more
wenzelm@36857
  1225
appropriate and more consistent names suitable for name prefixes
wenzelm@36857
  1226
within the HOL theories.  INCOMPATIBILITY.
haftmann@35050
  1227
haftmann@35084
  1228
* Some generic constants have been put to appropriate theories:
wenzelm@36857
  1229
  - less_eq, less: Orderings
wenzelm@36857
  1230
  - zero, one, plus, minus, uminus, times, abs, sgn: Groups
wenzelm@36857
  1231
  - inverse, divide: Rings
haftmann@35084
  1232
INCOMPATIBILITY.
haftmann@35084
  1233
wenzelm@36857
  1234
* More consistent naming of type classes involving orderings (and
wenzelm@36857
  1235
lattices):
haftmann@35027
  1236
haftmann@35027
  1237
    lower_semilattice                   ~> semilattice_inf
haftmann@35027
  1238
    upper_semilattice                   ~> semilattice_sup
haftmann@35027
  1239
haftmann@35027
  1240
    dense_linear_order                  ~> dense_linorder
haftmann@35027
  1241
haftmann@35027
  1242
    pordered_ab_group_add               ~> ordered_ab_group_add
haftmann@35027
  1243
    pordered_ab_group_add_abs           ~> ordered_ab_group_add_abs
haftmann@35027
  1244
    pordered_ab_semigroup_add           ~> ordered_ab_semigroup_add
haftmann@35027
  1245
    pordered_ab_semigroup_add_imp_le    ~> ordered_ab_semigroup_add_imp_le
haftmann@35027
  1246
    pordered_cancel_ab_semigroup_add    ~> ordered_cancel_ab_semigroup_add
haftmann@35027
  1247
    pordered_cancel_comm_semiring       ~> ordered_cancel_comm_semiring
haftmann@35027
  1248
    pordered_cancel_semiring            ~> ordered_cancel_semiring
haftmann@35027
  1249
    pordered_comm_monoid_add            ~> ordered_comm_monoid_add
haftmann@35027
  1250
    pordered_comm_ring                  ~> ordered_comm_ring
haftmann@35027
  1251
    pordered_comm_semiring              ~> ordered_comm_semiring
haftmann@35027
  1252
    pordered_ring                       ~> ordered_ring
haftmann@35027
  1253
    pordered_ring_abs                   ~> ordered_ring_abs
haftmann@35027
  1254
    pordered_semiring                   ~> ordered_semiring
haftmann@35027
  1255
haftmann@35027
  1256
    ordered_ab_group_add                ~> linordered_ab_group_add
haftmann@35027
  1257
    ordered_ab_semigroup_add            ~> linordered_ab_semigroup_add
haftmann@35027
  1258
    ordered_cancel_ab_semigroup_add     ~> linordered_cancel_ab_semigroup_add
haftmann@35027
  1259
    ordered_comm_semiring_strict        ~> linordered_comm_semiring_strict
haftmann@35027
  1260
    ordered_field                       ~> linordered_field
haftmann@35027
  1261
    ordered_field_no_lb                 ~> linordered_field_no_lb
haftmann@35027
  1262
    ordered_field_no_ub                 ~> linordered_field_no_ub
haftmann@35027
  1263
    ordered_field_dense_linear_order    ~> dense_linordered_field
haftmann@35027
  1264
    ordered_idom                        ~> linordered_idom
haftmann@35027
  1265
    ordered_ring                        ~> linordered_ring
haftmann@35027
  1266
    ordered_ring_le_cancel_factor       ~> linordered_ring_le_cancel_factor
haftmann@35027
  1267
    ordered_ring_less_cancel_factor     ~> linordered_ring_less_cancel_factor
haftmann@35027
  1268
    ordered_ring_strict                 ~> linordered_ring_strict
haftmann@35027
  1269
    ordered_semidom                     ~> linordered_semidom
haftmann@35027
  1270
    ordered_semiring                    ~> linordered_semiring
haftmann@35027
  1271
    ordered_semiring_1                  ~> linordered_semiring_1
haftmann@35027
  1272
    ordered_semiring_1_strict           ~> linordered_semiring_1_strict
haftmann@35027
  1273
    ordered_semiring_strict             ~> linordered_semiring_strict
haftmann@35027
  1274
wenzelm@36857
  1275
  The following slightly odd type classes have been moved to a
wenzelm@37351
  1276
  separate theory Library/Lattice_Algebras:
haftmann@35032
  1277
haftmann@35032
  1278
    lordered_ab_group_add               ~> lattice_ab_group_add
haftmann@35032
  1279
    lordered_ab_group_add_abs           ~> lattice_ab_group_add_abs
haftmann@35032
  1280
    lordered_ab_group_add_meet          ~> semilattice_inf_ab_group_add
haftmann@35032
  1281
    lordered_ab_group_add_join          ~> semilattice_sup_ab_group_add
haftmann@35032
  1282
    lordered_ring                       ~> lattice_ring
haftmann@35032
  1283
haftmann@35027
  1284
INCOMPATIBILITY.
haftmann@35027
  1285
haftmann@36416
  1286
* Refined field classes:
wenzelm@36857
  1287
  - classes division_ring_inverse_zero, field_inverse_zero,
wenzelm@36857
  1288
    linordered_field_inverse_zero include rule inverse 0 = 0 --
wenzelm@36857
  1289
    subsumes former division_by_zero class;
wenzelm@36857
  1290
  - numerous lemmas have been ported from field to division_ring.
wenzelm@36857
  1291
INCOMPATIBILITY.
haftmann@36416
  1292
haftmann@36416
  1293
* Refined algebra theorem collections:
wenzelm@36857
  1294
  - dropped theorem group group_simps, use algebra_simps instead;
wenzelm@36857
  1295
  - dropped theorem group ring_simps, use field_simps instead;
wenzelm@36857
  1296
  - proper theorem collection field_simps subsumes former theorem
wenzelm@36857
  1297
    groups field_eq_simps and field_simps;
wenzelm@36857
  1298
  - dropped lemma eq_minus_self_iff which is a duplicate for
wenzelm@36857
  1299
    equal_neg_zero.
wenzelm@36857
  1300
INCOMPATIBILITY.
wenzelm@35009
  1301
wenzelm@35009
  1302
* Theory Finite_Set and List: some lemmas have been generalized from
wenzelm@34076
  1303
sets to lattices:
wenzelm@34076
  1304
haftmann@34007
  1305
  fun_left_comm_idem_inter      ~> fun_left_comm_idem_inf
haftmann@34007
  1306
  fun_left_comm_idem_union      ~> fun_left_comm_idem_sup
haftmann@34007
  1307
  inter_Inter_fold_inter        ~> inf_Inf_fold_inf
haftmann@34007
  1308
  union_Union_fold_union        ~> sup_Sup_fold_sup
haftmann@34007
  1309
  Inter_fold_inter              ~> Inf_fold_inf
haftmann@34007
  1310
  Union_fold_union              ~> Sup_fold_sup
haftmann@34007
  1311
  inter_INTER_fold_inter        ~> inf_INFI_fold_inf
haftmann@34007
  1312
  union_UNION_fold_union        ~> sup_SUPR_fold_sup
haftmann@34007
  1313
  INTER_fold_inter              ~> INFI_fold_inf
haftmann@34007
  1314
  UNION_fold_union              ~> SUPR_fold_sup
haftmann@34007
  1315
wenzelm@37351
  1316
* Theory "Complete_Lattice": lemmas top_def and bot_def have been
haftmann@36416
  1317
replaced by the more convenient lemmas Inf_empty and Sup_empty.
haftmann@36416
  1318
Dropped lemmas Inf_insert_simp and Sup_insert_simp, which are subsumed
haftmann@36416
  1319
by Inf_insert and Sup_insert.  Lemmas Inf_UNIV and Sup_UNIV replace
haftmann@36416
  1320
former Inf_Univ and Sup_Univ.  Lemmas inf_top_right and sup_bot_right
haftmann@36416
  1321
subsume inf_top and sup_bot respectively.  INCOMPATIBILITY.
haftmann@36416
  1322
wenzelm@36857
  1323
* Reorganized theory Multiset: swapped notation of pointwise and
wenzelm@36857
  1324
multiset order:
wenzelm@37351
  1325
wenzelm@36857
  1326
  - pointwise ordering is instance of class order with standard syntax
wenzelm@36857
  1327
    <= and <;
wenzelm@36857
  1328
  - multiset ordering has syntax <=# and <#; partial order properties
wenzelm@36857
  1329
    are provided by means of interpretation with prefix
wenzelm@36857
  1330
    multiset_order;
wenzelm@36857
  1331
  - less duplication, less historical organization of sections,
wenzelm@36857
  1332
    conversion from associations lists to multisets, rudimentary code
wenzelm@36857
  1333
    generation;
wenzelm@36857
  1334
  - use insert_DiffM2 [symmetric] instead of elem_imp_eq_diff_union,
wenzelm@36857
  1335
    if needed.
wenzelm@37351
  1336
nipkow@36903
  1337
Renamed:
wenzelm@37351
  1338
wenzelm@37351
  1339
  multiset_eq_conv_count_eq  ~>  multiset_ext_iff
wenzelm@37351
  1340
  multi_count_ext  ~>  multiset_ext
wenzelm@37351
  1341
  diff_union_inverse2  ~>  diff_union_cancelR
wenzelm@37351
  1342
wenzelm@36857
  1343
INCOMPATIBILITY.
haftmann@36416
  1344
nipkow@36903
  1345
* Theory Permutation: replaced local "remove" by List.remove1.
nipkow@36903
  1346
haftmann@36416
  1347
* Code generation: ML and OCaml code is decorated with signatures.
haftmann@36416
  1348
wenzelm@35009
  1349
* Theory List: added transpose.
wenzelm@35009
  1350
huffman@35810
  1351
* Library/Nat_Bijection.thy is a collection of bijective functions
huffman@35810
  1352
between nat and other types, which supersedes the older libraries
huffman@35810
  1353
Library/Nat_Int_Bij.thy and HOLCF/NatIso.thy.  INCOMPATIBILITY.
huffman@35810
  1354
huffman@35810
  1355
  Constants:
huffman@35810
  1356
  Nat_Int_Bij.nat2_to_nat         ~> prod_encode
huffman@35810
  1357
  Nat_Int_Bij.nat_to_nat2         ~> prod_decode
huffman@35810
  1358
  Nat_Int_Bij.int_to_nat_bij      ~> int_encode
huffman@35810
  1359
  Nat_Int_Bij.nat_to_int_bij      ~> int_decode
huffman@35810
  1360
  Countable.pair_encode           ~> prod_encode
huffman@35810
  1361
  NatIso.prod2nat                 ~> prod_encode
huffman@35810
  1362
  NatIso.nat2prod                 ~> prod_decode
huffman@35810
  1363
  NatIso.sum2nat                  ~> sum_encode
huffman@35810
  1364
  NatIso.nat2sum                  ~> sum_decode
huffman@35810
  1365
  NatIso.list2nat                 ~> list_encode
huffman@35810
  1366
  NatIso.nat2list                 ~> list_decode
huffman@35810
  1367
  NatIso.set2nat                  ~> set_encode
huffman@35810
  1368
  NatIso.nat2set                  ~> set_decode
huffman@35810
  1369
huffman@35810
  1370
  Lemmas:
huffman@35810
  1371
  Nat_Int_Bij.bij_nat_to_int_bij  ~> bij_int_decode
huffman@35810
  1372
  Nat_Int_Bij.nat2_to_nat_inj     ~> inj_prod_encode
huffman@35810
  1373
  Nat_Int_Bij.nat2_to_nat_surj    ~> surj_prod_encode
huffman@35810
  1374
  Nat_Int_Bij.nat_to_nat2_inj     ~> inj_prod_decode
huffman@35810
  1375
  Nat_Int_Bij.nat_to_nat2_surj    ~> surj_prod_decode
huffman@35810
  1376
  Nat_Int_Bij.i2n_n2i_id          ~> int_encode_inverse
huffman@35810
  1377
  Nat_Int_Bij.n2i_i2n_id          ~> int_decode_inverse
huffman@35810
  1378
  Nat_Int_Bij.surj_nat_to_int_bij ~> surj_int_encode
huffman@35810
  1379
  Nat_Int_Bij.surj_int_to_nat_bij ~> surj_int_decode
huffman@35810
  1380
  Nat_Int_Bij.inj_nat_to_int_bij  ~> inj_int_encode
huffman@35810
  1381
  Nat_Int_Bij.inj_int_to_nat_bij  ~> inj_int_decode
huffman@35810
  1382
  Nat_Int_Bij.bij_nat_to_int_bij  ~> bij_int_encode
huffman@35810
  1383
  Nat_Int_Bij.bij_int_to_nat_bij  ~> bij_int_decode
huffman@35810
  1384
blanchet@36929
  1385
* Sledgehammer:
blanchet@36929
  1386
  - Renamed ATP commands:
blanchet@36929
  1387
    atp_info     ~> sledgehammer running_atps
blanchet@36929
  1388
    atp_kill     ~> sledgehammer kill_atps
blanchet@36929
  1389
    atp_messages ~> sledgehammer messages
blanchet@36929
  1390
    atp_minimize ~> sledgehammer minimize
blanchet@36929
  1391
    print_atps   ~> sledgehammer available_atps
blanchet@36929
  1392
    INCOMPATIBILITY.
blanchet@36929
  1393
  - Added user's manual ("isabelle doc sledgehammer").
blanchet@36929
  1394
  - Added option syntax and "sledgehammer_params" to customize
blanchet@36929
  1395
    Sledgehammer's behavior.  See the manual for details.
blanchet@36929
  1396
  - Modified the Isar proof reconstruction code so that it produces
blanchet@36929
  1397
    direct proofs rather than proofs by contradiction.  (This feature
blanchet@36929
  1398
    is still experimental.)
blanchet@36929
  1399
  - Made Isar proof reconstruction work for SPASS, remote ATPs, and in
blanchet@36929
  1400
    full-typed mode.
blanchet@36929
  1401
  - Added support for TPTP syntax for SPASS via the "spass_tptp" ATP.
blanchet@36929
  1402
blanchet@36928
  1403
* Nitpick:
blanchet@36928
  1404
  - Added and implemented "binary_ints" and "bits" options.
blanchet@36928
  1405
  - Added "std" option and implemented support for nonstandard models.
blanchet@36928
  1406
  - Added and implemented "finitize" option to improve the precision
blanchet@36928
  1407
    of infinite datatypes based on a monotonicity analysis.
blanchet@36928
  1408
  - Added support for quotient types.
blanchet@36928
  1409
  - Added support for "specification" and "ax_specification"
blanchet@36928
  1410
    constructs.
blanchet@36928
  1411
  - Added support for local definitions (for "function" and
blanchet@36928
  1412
    "termination" proofs).
blanchet@36928
  1413
  - Added support for term postprocessors.
blanchet@36928
  1414
  - Optimized "Multiset.multiset" and "FinFun.finfun".
blanchet@36928
  1415
  - Improved efficiency of "destroy_constrs" optimization.
blanchet@36928
  1416
  - Fixed soundness bugs related to "destroy_constrs" optimization and
blanchet@36928
  1417
    record getters.
blanchet@37272
  1418
  - Fixed soundness bug related to higher-order constructors.
blanchet@37272
  1419
  - Fixed soundness bug when "full_descrs" is enabled.
blanchet@36928
  1420
  - Improved precision of set constructs.
blanchet@37260
  1421
  - Added "atoms" option.
blanchet@36928
  1422
  - Added cache to speed up repeated Kodkod invocations on the same
blanchet@36928
  1423
    problems.
blanchet@36928
  1424
  - Renamed "MiniSatJNI", "zChaffJNI", "BerkMinAlloy", and
blanchet@36928
  1425
    "SAT4JLight" to "MiniSat_JNI", "zChaff_JNI", "BerkMin_Alloy", and
blanchet@36928
  1426
    "SAT4J_Light".  INCOMPATIBILITY.
blanchet@36928
  1427
  - Removed "skolemize", "uncurry", "sym_break", "flatten_prop",
blanchet@36928
  1428
    "sharing_depth", and "show_skolems" options.  INCOMPATIBILITY.
blanchet@37264
  1429
  - Removed "nitpick_intro" attribute.  INCOMPATIBILITY.
blanchet@36928
  1430
berghofe@37361
  1431
* Method "induct" now takes instantiations of the form t, where t is not
berghofe@37361
  1432
  a variable, as a shorthand for "x == t", where x is a fresh variable.
berghofe@37361
  1433
  If this is not intended, t has to be enclosed in parentheses.
berghofe@37361
  1434
  By default, the equalities generated by definitional instantiations
berghofe@37361
  1435
  are pre-simplified, which may cause parameters of inductive cases
berghofe@37361
  1436
  to disappear, or may even delete some of the inductive cases.
berghofe@37361
  1437
  Use "induct (no_simp)" instead of "induct" to restore the old
berghofe@37361
  1438
  behaviour. The (no_simp) option is also understood by the "cases"
berghofe@37361
  1439
  and "nominal_induct" methods, which now perform pre-simplification, too.
berghofe@37361
  1440
  INCOMPATIBILITY.
berghofe@37361
  1441
haftmann@33993
  1442
huffman@36828
  1443
*** HOLCF ***
huffman@36828
  1444
huffman@36828
  1445
* Variable names in lemmas generated by the domain package have
huffman@36828
  1446
changed; the naming scheme is now consistent with the HOL datatype
huffman@36828
  1447
package.  Some proof scripts may be affected, INCOMPATIBILITY.
huffman@36828
  1448
huffman@36828
  1449
* The domain package no longer defines the function "foo_copy" for
huffman@36828
  1450
recursive domain "foo".  The reach lemma is now stated directly in
huffman@36828
  1451
terms of "foo_take".  Lemmas and proofs that mention "foo_copy" must
huffman@36828
  1452
be reformulated in terms of "foo_take", INCOMPATIBILITY.
huffman@36828
  1453
huffman@36828
  1454
* Most definedness lemmas generated by the domain package (previously
huffman@36828
  1455
of the form "x ~= UU ==> foo$x ~= UU") now have an if-and-only-if form
huffman@36828
  1456
like "foo$x = UU <-> x = UU", which works better as a simp rule.
wenzelm@37351
  1457
Proofs that used definedness lemmas as intro rules may break,
huffman@36828
  1458
potential INCOMPATIBILITY.
huffman@36828
  1459
huffman@36828
  1460
* Induction and casedist rules generated by the domain package now
huffman@36828
  1461
declare proper case_names (one called "bottom", and one named for each
huffman@36828
  1462
constructor).  INCOMPATIBILITY.
huffman@36828
  1463
huffman@36828
  1464
* For mutually-recursive domains, separate "reach" and "take_lemma"
huffman@36828
  1465
rules are generated for each domain, INCOMPATIBILITY.
huffman@36828
  1466
huffman@36828
  1467
  foo_bar.reach       ~> foo.reach  bar.reach
huffman@36828
  1468
  foo_bar.take_lemmas ~> foo.take_lemma  bar.take_lemma
huffman@36828
  1469
huffman@36828
  1470
* Some lemmas generated by the domain package have been renamed for
huffman@36828
  1471
consistency with the datatype package, INCOMPATIBILITY.
huffman@36828
  1472
huffman@36828
  1473
  foo.ind        ~> foo.induct
huffman@36828
  1474
  foo.finite_ind ~> foo.finite_induct
huffman@36828
  1475
  foo.coind      ~> foo.coinduct
huffman@36828
  1476
  foo.casedist   ~> foo.exhaust
huffman@36828
  1477
  foo.exhaust    ~> foo.nchotomy
huffman@36828
  1478
huffman@36828
  1479
* For consistency with other definition packages, the fixrec package
huffman@36828
  1480
now generates qualified theorem names, INCOMPATIBILITY.
huffman@36828
  1481
huffman@36828
  1482
  foo_simps  ~> foo.simps
huffman@36828
  1483
  foo_unfold ~> foo.unfold
huffman@36828
  1484
  foo_induct ~> foo.induct
huffman@36828
  1485
huffman@37087
  1486
* The "fixrec_simp" attribute has been removed.  The "fixrec_simp"
huffman@37087
  1487
method and internal fixrec proofs now use the default simpset instead.
huffman@37087
  1488
INCOMPATIBILITY.
huffman@37087
  1489
huffman@36828
  1490
* The "contlub" predicate has been removed.  Proof scripts should use
huffman@36828
  1491
lemma contI2 in place of monocontlub2cont, INCOMPATIBILITY.
huffman@36828
  1492
huffman@36828
  1493
* The "admw" predicate has been removed, INCOMPATIBILITY.
huffman@36828
  1494
huffman@36828
  1495
* The constants cpair, cfst, and csnd have been removed in favor of
huffman@36828
  1496
Pair, fst, and snd from Isabelle/HOL, INCOMPATIBILITY.
huffman@36828
  1497
huffman@36828
  1498
haftmann@33993
  1499
*** ML ***
haftmann@33993
  1500
wenzelm@37351
  1501
* Antiquotations for basic formal entities:
wenzelm@37351
  1502
wenzelm@37351
  1503
    @{class NAME}         -- type class
wenzelm@37351
  1504
    @{class_syntax NAME}  -- syntax representation of the above
wenzelm@37351
  1505
wenzelm@37351
  1506
    @{type_name NAME}     -- logical type
wenzelm@37351
  1507
    @{type_abbrev NAME}   -- type abbreviation
wenzelm@37351
  1508
    @{nonterminal NAME}   -- type of concrete syntactic category
wenzelm@37351
  1509
    @{type_syntax NAME}   -- syntax representation of any of the above
wenzelm@37351
  1510
wenzelm@37351
  1511
    @{const_name NAME}    -- logical constant (INCOMPATIBILITY)
wenzelm@37351
  1512
    @{const_abbrev NAME}  -- abbreviated constant
wenzelm@37351
  1513
    @{const_syntax NAME}  -- syntax representation of any of the above
wenzelm@37351
  1514
wenzelm@37351
  1515
* Antiquotation @{syntax_const NAME} ensures that NAME refers to a raw
wenzelm@37351
  1516
syntax constant (cf. 'syntax' command).
wenzelm@37351
  1517
wenzelm@37351
  1518
* Antiquotation @{make_string} inlines a function to print arbitrary
wenzelm@37351
  1519
values similar to the ML toplevel.  The result is compiler dependent
wenzelm@37351
  1520
and may fall back on "?" in certain situations.
wenzelm@37351
  1521
wenzelm@37351
  1522
* Diagnostic commands 'ML_val' and 'ML_command' may refer to
wenzelm@37351
  1523
antiquotations @{Isar.state} and @{Isar.goal}.  This replaces impure
wenzelm@37351
  1524
Isar.state() and Isar.goal(), which belong to the old TTY loop and do
wenzelm@37351
  1525
not work with the asynchronous Isar document model.
wenzelm@37351
  1526
wenzelm@37351
  1527
* Configuration options now admit dynamic default values, depending on
wenzelm@37351
  1528
the context or even global references.
wenzelm@37351
  1529
wenzelm@37351
  1530
* SHA1.digest digests strings according to SHA-1 (see RFC 3174).  It
wenzelm@37351
  1531
uses an efficient external library if available (for Poly/ML).
wenzelm@37351
  1532
wenzelm@37144
  1533
* Renamed some important ML structures, while keeping the old names
wenzelm@37144
  1534
for some time as aliases within the structure Legacy:
wenzelm@37144
  1535
wenzelm@37144
  1536
  OuterKeyword  ~>  Keyword
wenzelm@37144
  1537
  OuterLex      ~>  Token
wenzelm@37144
  1538
  OuterParse    ~>  Parse
wenzelm@37144
  1539
  OuterSyntax   ~>  Outer_Syntax
wenzelm@37216
  1540
  PrintMode     ~>  Print_Mode
wenzelm@37144
  1541
  SpecParse     ~>  Parse_Spec
wenzelm@37216
  1542
  ThyInfo       ~>  Thy_Info
wenzelm@37216
  1543
  ThyLoad       ~>  Thy_Load
wenzelm@37216
  1544
  ThyOutput     ~>  Thy_Output
wenzelm@37145
  1545
  TypeInfer     ~>  Type_Infer
wenzelm@37144
  1546
wenzelm@37144
  1547
Note that "open Legacy" simplifies porting of sources, but forgetting
wenzelm@37144
  1548
to remove it again will complicate porting again in the future.
wenzelm@37144
  1549
wenzelm@37144
  1550
* Most operations that refer to a global context are named
wenzelm@37144
  1551
accordingly, e.g. Simplifier.global_context or
wenzelm@37144
  1552
ProofContext.init_global.  There are some situations where a global
wenzelm@37144
  1553
context actually works, but under normal circumstances one needs to
wenzelm@37144
  1554
pass the proper local context through the code!
wenzelm@37144
  1555
wenzelm@37144
  1556
* Discontinued old TheoryDataFun with its copy/init operation -- data
wenzelm@37144
  1557
needs to be pure.  Functor Theory_Data_PP retains the traditional
wenzelm@37144
  1558
Pretty.pp argument to merge, which is absent in the standard
wenzelm@37144
  1559
Theory_Data version.
wenzelm@36429
  1560
wenzelm@37144
  1561
* Sorts.certify_sort and derived "cert" operations for types and terms
wenzelm@37144
  1562
no longer minimize sorts.  Thus certification at the boundary of the
wenzelm@37144
  1563
inference kernel becomes invariant under addition of class relations,
wenzelm@37144
  1564
which is an important monotonicity principle.  Sorts are now minimized
wenzelm@37144
  1565
in the syntax layer only, at the boundary between the end-user and the
wenzelm@37144
  1566
system.  Subtle INCOMPATIBILITY, may have to use Sign.minimize_sort
wenzelm@37144
  1567
explicitly in rare situations.
wenzelm@37144
  1568
wenzelm@35021
  1569
* Renamed old-style Drule.standard to Drule.export_without_context, to
wenzelm@35021
  1570
emphasize that this is in no way a standard operation.
wenzelm@35021
  1571
INCOMPATIBILITY.
wenzelm@35021
  1572
wenzelm@34076
  1573
* Subgoal.FOCUS (and variants): resulting goal state is normalized as
wenzelm@34076
  1574
usual for resolution.  Rare INCOMPATIBILITY.
wenzelm@34076
  1575
wenzelm@35845
  1576
* Renamed varify/unvarify operations to varify_global/unvarify_global
wenzelm@35845
  1577
to emphasize that these only work in a global situation (which is
wenzelm@35845
  1578
quite rare).
wenzelm@35845
  1579
wenzelm@37144
  1580
* Curried take and drop in library.ML; negative length is interpreted
wenzelm@37144
  1581
as infinity (as in chop).  Subtle INCOMPATIBILITY.
wenzelm@36961
  1582
wenzelm@37351
  1583
* Proof terms: type substitutions on proof constants now use canonical
wenzelm@37351
  1584
order of type variables.  INCOMPATIBILITY for tools working with proof
wenzelm@37351
  1585
terms.
wenzelm@37351
  1586
wenzelm@37351
  1587
* Raw axioms/defs may no longer carry sort constraints, and raw defs
wenzelm@37351
  1588
may no longer carry premises.  User-level specifications are
wenzelm@37351
  1589
transformed accordingly by Thm.add_axiom/add_def.
wenzelm@37351
  1590
haftmann@33993
  1591
wenzelm@34238
  1592
*** System ***
wenzelm@34238
  1593
wenzelm@34238
  1594
* Discontinued special HOL_USEDIR_OPTIONS for the main HOL image;
wenzelm@34238
  1595
ISABELLE_USEDIR_OPTIONS applies uniformly to all sessions.  Note that
wenzelm@34238
  1596
proof terms are enabled unconditionally in the new HOL-Proofs image.
wenzelm@34238
  1597
wenzelm@34255
  1598
* Discontinued old ISABELLE and ISATOOL environment settings (legacy
wenzelm@34255
  1599
feature since Isabelle2009).  Use ISABELLE_PROCESS and ISABELLE_TOOL,
wenzelm@34255
  1600
respectively.
wenzelm@34255
  1601
wenzelm@36201
  1602
* Old lib/scripts/polyml-platform is superseded by the
wenzelm@36201
  1603
ISABELLE_PLATFORM setting variable, which defaults to the 32 bit
wenzelm@36201
  1604
variant, even on a 64 bit machine.  The following example setting
wenzelm@36201
  1605
prefers 64 bit if available:
wenzelm@36201
  1606
wenzelm@36201
  1607
  ML_PLATFORM="${ISABELLE_PLATFORM64:-$ISABELLE_PLATFORM}"
wenzelm@36201
  1608
wenzelm@37218
  1609
* The preliminary Isabelle/jEdit application demonstrates the emerging
wenzelm@37218
  1610
Isabelle/Scala layer for advanced prover interaction and integration.
wenzelm@37218
  1611
See src/Tools/jEdit or "isabelle jedit" provided by the properly built
wenzelm@37218
  1612
component.
wenzelm@37218
  1613
wenzelm@37375
  1614
* "IsabelleText" is a Unicode font derived from Bitstream Vera Mono
wenzelm@37375
  1615
and Bluesky TeX fonts.  It provides the usual Isabelle symbols,
wenzelm@37375
  1616
similar to the default assignment of the document preparation system
wenzelm@37375
  1617
(cf. isabellesym.sty).  The Isabelle/Scala class Isabelle_System
wenzelm@37375
  1618
provides some operations for direct access to the font without asking
wenzelm@37375
  1619
the user for manual installation.
wenzelm@37375
  1620
wenzelm@34238
  1621
haftmann@33993
  1622
wenzelm@33842
  1623
New in Isabelle2009-1 (December 2009)
wenzelm@33842
  1624
-------------------------------------
wenzelm@30904
  1625
wenzelm@31547
  1626
*** General ***
wenzelm@31547
  1627
wenzelm@31547
  1628
* Discontinued old form of "escaped symbols" such as \\<forall>.  Only
wenzelm@31547
  1629
one backslash should be used, even in ML sources.
wenzelm@31547
  1630
wenzelm@31547
  1631
haftmann@30951
  1632
*** Pure ***
haftmann@30951
  1633
ballarin@32846
  1634
* Locale interpretation propagates mixins along the locale hierarchy.
ballarin@32846
  1635
The currently only available mixins are the equations used to map
ballarin@32846
  1636
local definitions to terms of the target domain of an interpretation.
ballarin@32846
  1637
wenzelm@33842
  1638
* Reactivated diagnostic command 'print_interps'.  Use "print_interps
wenzelm@33842
  1639
loc" to print all interpretations of locale "loc" in the theory.
wenzelm@33842
  1640
Interpretations in proofs are not shown.
ballarin@32846
  1641
ballarin@32983
  1642
* Thoroughly revised locales tutorial.  New section on conditional
ballarin@32983
  1643
interpretation.
ballarin@32983
  1644
wenzelm@33843
  1645
* On instantiation of classes, remaining undefined class parameters
wenzelm@33843
  1646
are formally declared.  INCOMPATIBILITY.
wenzelm@33843
  1647
haftmann@30951
  1648
wenzelm@33842
  1649
*** Document preparation ***
wenzelm@33842
  1650
wenzelm@33842
  1651
* New generalized style concept for printing terms: @{foo (style) ...}
wenzelm@33842
  1652
instead of @{foo_style style ...}  (old form is still retained for
wenzelm@33842
  1653
backward compatibility).  Styles can be also applied for
wenzelm@33842
  1654
antiquotations prop, term_type and typeof.
haftmann@32891
  1655
haftmann@32891
  1656
haftmann@30930
  1657
*** HOL ***
haftmann@30930
  1658
wenzelm@33842
  1659
* New proof method "smt" for a combination of first-order logic with
wenzelm@33842
  1660
equality, linear and nonlinear (natural/integer/real) arithmetic, and
wenzelm@33842
  1661
fixed-size bitvectors; there is also basic support for higher-order
wenzelm@33842
  1662
features (esp. lambda abstractions).  It is an incomplete decision
wenzelm@33842
  1663
procedure based on external SMT solvers using the oracle mechanism;
wenzelm@33842
  1664
for the SMT solver Z3, this method is proof-producing.  Certificates
wenzelm@33842
  1665
are provided to avoid calling the external solvers solely for
wenzelm@33842
  1666
re-checking proofs.  Due to a remote SMT service there is no need for
wenzelm@33842
  1667
installing SMT solvers locally.  See src/HOL/SMT.
wenzelm@33842
  1668
wenzelm@33842
  1669
* New commands to load and prove verification conditions generated by
wenzelm@33842
  1670
the Boogie program verifier or derived systems (e.g. the Verifying C
wenzelm@33842
  1671
Compiler (VCC) or Spec#).  See src/HOL/Boogie.
wenzelm@33842
  1672
wenzelm@33842
  1673
* New counterexample generator tool 'nitpick' based on the Kodkod
wenzelm@33842
  1674
relational model finder.  See src/HOL/Tools/Nitpick and
wenzelm@33842
  1675
src/HOL/Nitpick_Examples.
wenzelm@33842
  1676
haftmann@33860
  1677
* New commands 'code_pred' and 'values' to invoke the predicate
haftmann@33860
  1678
compiler and to enumerate values of inductive predicates.
haftmann@33860
  1679
haftmann@33860
  1680
* A tabled implementation of the reflexive transitive closure.
haftmann@33860
  1681
haftmann@33860
  1682
* New implementation of quickcheck uses generic code generator;
haftmann@33860
  1683
default generators are provided for all suitable HOL types, records
haftmann@33860
  1684
and datatypes.  Old quickcheck can be re-activated importing theory
haftmann@33860
  1685
Library/SML_Quickcheck.
haftmann@33860
  1686
wenzelm@33843
  1687
* New testing tool Mirabelle for automated proof tools.  Applies
wenzelm@33843
  1688
several tools and tactics like sledgehammer, metis, or quickcheck, to
wenzelm@33843
  1689
every proof step in a theory.  To be used in batch mode via the
wenzelm@33843
  1690
"mirabelle" utility.
wenzelm@33843
  1691
wenzelm@33843
  1692
* New proof method "sos" (sum of squares) for nonlinear real
wenzelm@33843
  1693
arithmetic (originally due to John Harison). It requires theory
wenzelm@33843
  1694
Library/Sum_Of_Squares.  It is not a complete decision procedure but
wenzelm@33843
  1695
works well in practice on quantifier-free real arithmetic with +, -,
wenzelm@33843
  1696
*, ^, =, <= and <, i.e. boolean combinations of equalities and
wenzelm@33843
  1697
inequalities between polynomials.  It makes use of external
wenzelm@33843
  1698
semidefinite programming solvers.  Method "sos" generates a
wenzelm@33843
  1699
certificate that can be pasted into the proof thus avoiding the need
wenzelm@33843
  1700
to call an external tool every time the proof is checked.  See
wenzelm@33843
  1701
src/HOL/Library/Sum_Of_Squares.
wenzelm@33843
  1702
wenzelm@33843
  1703
* New method "linarith" invokes existing linear arithmetic decision
wenzelm@33843
  1704
procedure only.
wenzelm@33843
  1705
wenzelm@33843
  1706
* New command 'atp_minimal' reduces result produced by Sledgehammer.
wenzelm@33843
  1707
wenzelm@33843
  1708
* New Sledgehammer option "Full Types" in Proof General settings menu.
wenzelm@33843
  1709
Causes full type information to be output to the ATPs.  This slows
wenzelm@33843
  1710
ATPs down considerably but eliminates a source of unsound "proofs"
wenzelm@33843
  1711
that fail later.
wenzelm@33843
  1712
wenzelm@33843
  1713
* New method "metisFT": A version of metis that uses full type
wenzelm@33843
  1714
information in order to avoid failures of proof reconstruction.
wenzelm@33843
  1715
wenzelm@33843
  1716
* New evaluator "approximate" approximates an real valued term using
wenzelm@33843
  1717
the same method as the approximation method.
wenzelm@33843
  1718
wenzelm@33843
  1719
* Method "approximate" now supports arithmetic expressions as
wenzelm@33843
  1720
boundaries of intervals and implements interval splitting and Taylor
wenzelm@33843
  1721
series expansion.
wenzelm@33843
  1722
wenzelm@33843
  1723
* ML antiquotation @{code_datatype} inserts definition of a datatype
wenzelm@33843
  1724
generated by the code generator; e.g. see src/HOL/Predicate.thy.
wenzelm@33843
  1725
haftmann@33860
  1726
* New theory SupInf of the supremum and infimum operators for sets of
haftmann@33860
  1727
reals.
haftmann@33860
  1728
haftmann@33860
  1729
* New theory Probability, which contains a development of measure
haftmann@33860
  1730
theory, eventually leading to Lebesgue integration and probability.
haftmann@33860
  1731
haftmann@33860
  1732
* Extended Multivariate Analysis to include derivation and Brouwer's
haftmann@33860
  1733
fixpoint theorem.
wenzelm@33843
  1734
wenzelm@33842
  1735
* Reorganization of number theory, INCOMPATIBILITY:
wenzelm@33873
  1736
  - new number theory development for nat and int, in theories Divides
wenzelm@33873
  1737
    and GCD as well as in new session Number_Theory
wenzelm@33873
  1738
  - some constants and facts now suffixed with _nat and _int
wenzelm@33873
  1739
    accordingly
wenzelm@33873
  1740
  - former session NumberTheory now named Old_Number_Theory, including
wenzelm@33873
  1741
    theories Legacy_GCD and Primes (prefer Number_Theory if possible)
wenzelm@33842
  1742
  - moved theory Pocklington from src/HOL/Library to
wenzelm@33842
  1743
    src/HOL/Old_Number_Theory
haftmann@32479
  1744
wenzelm@33873
  1745
* Theory GCD includes functions Gcd/GCD and Lcm/LCM for the gcd and
wenzelm@33873
  1746
lcm of finite and infinite sets. It is shown that they form a complete
haftmann@32600
  1747
lattice.
haftmann@32600
  1748
haftmann@32600
  1749
* Class semiring_div requires superclass no_zero_divisors and proof of
haftmann@32600
  1750
div_mult_mult1; theorems div_mult_mult1, div_mult_mult2,
haftmann@32600
  1751
div_mult_mult1_if, div_mult_mult1 and div_mult_mult2 have been
haftmann@32600
  1752
generalized to class semiring_div, subsuming former theorems
haftmann@32600
  1753
zdiv_zmult_zmult1, zdiv_zmult_zmult1_if, zdiv_zmult_zmult1 and
haftmann@32600
  1754
zdiv_zmult_zmult2.  div_mult_mult1 is now [simp] by default.
haftmann@32600
  1755
INCOMPATIBILITY.
haftmann@32600
  1756
haftmann@32588
  1757
* Refinements to lattice classes and sets:
haftmann@32064
  1758
  - less default intro/elim rules in locale variant, more default
haftmann@32064
  1759
    intro/elim rules in class variant: more uniformity
wenzelm@33842
  1760
  - lemma ge_sup_conv renamed to le_sup_iff, in accordance with
wenzelm@33842
  1761
    le_inf_iff
wenzelm@33842
  1762
  - dropped lemma alias inf_ACI for inf_aci (same for sup_ACI and
wenzelm@33842
  1763
    sup_aci)
haftmann@32064
  1764
  - renamed ACI to inf_sup_aci
haftmann@32600
  1765
  - new class "boolean_algebra"
wenzelm@33842
  1766
  - class "complete_lattice" moved to separate theory
haftmann@33860
  1767
    "Complete_Lattice"; corresponding constants (and abbreviations)
wenzelm@33842
  1768
    renamed and with authentic syntax:
haftmann@33860
  1769
    Set.Inf ~>    Complete_Lattice.Inf
haftmann@33860
  1770
    Set.Sup ~>    Complete_Lattice.Sup
haftmann@33860
  1771
    Set.INFI ~>   Complete_Lattice.INFI
haftmann@33860
  1772
    Set.SUPR ~>   Complete_Lattice.SUPR
haftmann@33860
  1773
    Set.Inter ~>  Complete_Lattice.Inter
haftmann@33860
  1774
    Set.Union ~>  Complete_Lattice.Union
haftmann@33860
  1775
    Set.INTER ~>  Complete_Lattice.INTER
haftmann@33860
  1776
    Set.UNION ~>  Complete_Lattice.UNION
haftmann@32600
  1777
  - authentic syntax for
haftmann@32600
  1778
    Set.Pow
haftmann@32600
  1779
    Set.image
haftmann@32588
  1780
  - mere abbreviations:
haftmann@32588
  1781
    Set.empty               (for bot)
haftmann@32588
  1782
    Set.UNIV                (for top)
haftmann@33860
  1783
    Set.inter               (for inf, formerly Set.Int)
haftmann@33860
  1784
    Set.union               (for sup, formerly Set.Un)
haftmann@32588
  1785
    Complete_Lattice.Inter  (for Inf)
haftmann@32588
  1786
    Complete_Lattice.Union  (for Sup)
haftmann@32606
  1787
    Complete_Lattice.INTER  (for INFI)
haftmann@32606
  1788
    Complete_Lattice.UNION  (for SUPR)
haftmann@32600
  1789
  - object-logic definitions as far as appropriate
haftmann@32217
  1790
haftmann@32691
  1791
INCOMPATIBILITY.  Care is required when theorems Int_subset_iff or
wenzelm@33842
  1792
Un_subset_iff are explicitly deleted as default simp rules; then also
wenzelm@33842
  1793
their lattice counterparts le_inf_iff and le_sup_iff have to be
haftmann@32691
  1794
deleted to achieve the desired effect.
haftmann@32064
  1795
wenzelm@33842
  1796
* Rules inf_absorb1, inf_absorb2, sup_absorb1, sup_absorb2 are no simp
wenzelm@33842
  1797
rules by default any longer; the same applies to min_max.inf_absorb1
wenzelm@33842
  1798
etc.  INCOMPATIBILITY.
wenzelm@33842
  1799
wenzelm@33842
  1800
* Rules sup_Int_eq and sup_Un_eq are no longer declared as
wenzelm@33842
  1801
pred_set_conv by default.  INCOMPATIBILITY.
wenzelm@33842
  1802
wenzelm@33842
  1803
* Power operations on relations and functions are now one dedicated
haftmann@32706
  1804
constant "compow" with infix syntax "^^".  Power operation on
wenzelm@31547
  1805
multiplicative monoids retains syntax "^" and is now defined generic
wenzelm@31547
  1806
in class power.  INCOMPATIBILITY.
wenzelm@31547
  1807
wenzelm@33842
  1808
* Relation composition "R O S" now has a more standard argument order:
wenzelm@33842
  1809
"R O S = {(x, z). EX y. (x, y) : R & (y, z) : S}".  INCOMPATIBILITY,
wenzelm@33842
  1810
rewrite propositions with "S O R" --> "R O S". Proofs may occasionally
wenzelm@33842
  1811
break, since the O_assoc rule was not rewritten like this.  Fix using
wenzelm@33842
  1812
O_assoc[symmetric].  The same applies to the curried version "R OO S".
wenzelm@32427
  1813
nipkow@33057
  1814
* Function "Inv" is renamed to "inv_into" and function "inv" is now an
wenzelm@33842
  1815
abbreviation for "inv_into UNIV".  Lemmas are renamed accordingly.
nipkow@32988
  1816
INCOMPATIBILITY.
nipkow@32988
  1817
haftmann@33860
  1818
* Most rules produced by inductive and datatype package have mandatory
haftmann@33860
  1819
prefixes.  INCOMPATIBILITY.
nipkow@31790
  1820
wenzelm@33842
  1821
* Changed "DERIV_intros" to a dynamic fact, which can be augmented by
wenzelm@33842
  1822
the attribute of the same name.  Each of the theorems in the list
wenzelm@33842
  1823
DERIV_intros assumes composition with an additional function and
wenzelm@33842
  1824
matches a variable to the derivative, which has to be solved by the
wenzelm@33842
  1825
Simplifier.  Hence (auto intro!: DERIV_intros) computes the derivative
wenzelm@33873
  1826
of most elementary terms.  Former Maclauren.DERIV_tac and
wenzelm@33873
  1827
Maclauren.deriv_tac should be replaced by (auto intro!: DERIV_intros).
wenzelm@33873
  1828
INCOMPATIBILITY.
haftmann@33860
  1829
haftmann@33860
  1830
* Code generator attributes follow the usual underscore convention:
haftmann@33860
  1831
    code_unfold     replaces    code unfold
haftmann@33860
  1832
    code_post       replaces    code post
haftmann@33860
  1833
    etc.
haftmann@33860
  1834
  INCOMPATIBILITY.
wenzelm@31900
  1835
krauss@33471
  1836
* Renamed methods:
krauss@33471
  1837
    sizechange -> size_change
krauss@33471
  1838
    induct_scheme -> induction_schema
haftmann@33860
  1839
  INCOMPATIBILITY.
nipkow@33673
  1840
wenzelm@33843
  1841
* Discontinued abbreviation "arbitrary" of constant "undefined".
wenzelm@33843
  1842
INCOMPATIBILITY, use "undefined" directly.
wenzelm@33843
  1843
haftmann@33860
  1844
* Renamed theorems:
haftmann@33860
  1845
    Suc_eq_add_numeral_1 -> Suc_eq_plus1
haftmann@33860
  1846
    Suc_eq_add_numeral_1_left -> Suc_eq_plus1_left
haftmann@33860
  1847
    Suc_plus1 -> Suc_eq_plus1
haftmann@33860
  1848
    *anti_sym -> *antisym*
haftmann@33860
  1849
    vector_less_eq_def -> vector_le_def
haftmann@33860
  1850
  INCOMPATIBILITY.
haftmann@33860
  1851
haftmann@33860
  1852
* Added theorem List.map_map as [simp].  Removed List.map_compose.
haftmann@33860
  1853
INCOMPATIBILITY.
haftmann@33860
  1854
haftmann@33860
  1855
* Removed predicate "M hassize n" (<--> card M = n & finite M).
haftmann@33860
  1856
INCOMPATIBILITY.
haftmann@33860
  1857
hoelzl@31812
  1858
huffman@33825
  1859
*** HOLCF ***
huffman@33825
  1860
wenzelm@33842
  1861
* Theory Representable defines a class "rep" of domains that are
wenzelm@33842
  1862
representable (via an ep-pair) in the universal domain type "udom".
huffman@33825
  1863
Instances are provided for all type constructors defined in HOLCF.
huffman@33825
  1864
huffman@33825
  1865
* The 'new_domain' command is a purely definitional version of the
huffman@33825
  1866
domain package, for representable domains.  Syntax is identical to the
huffman@33825
  1867
old domain package.  The 'new_domain' package also supports indirect
huffman@33825
  1868
recursion using previously-defined type constructors.  See
wenzelm@33842
  1869
src/HOLCF/ex/New_Domain.thy for examples.
wenzelm@33842
  1870
wenzelm@33842
  1871
* Method "fixrec_simp" unfolds one step of a fixrec-defined constant
huffman@33825
  1872
on the left-hand side of an equation, and then performs
huffman@33825
  1873
simplification.  Rewriting is done using rules declared with the
wenzelm@33842
  1874
"fixrec_simp" attribute.  The "fixrec_simp" method is intended as a
wenzelm@33842
  1875
replacement for "fixpat"; see src/HOLCF/ex/Fixrec_ex.thy for examples.
huffman@33825
  1876
huffman@33825
  1877
* The pattern-match compiler in 'fixrec' can now handle constructors
huffman@33825
  1878
with HOL function types.  Pattern-match combinators for the Pair
huffman@33825
  1879
constructor are pre-configured.
huffman@33825
  1880
huffman@33825
  1881
* The 'fixrec' package now produces better fixed-point induction rules
huffman@33825
  1882
for mutually-recursive definitions:  Induction rules have conclusions
huffman@33825
  1883
of the form "P foo bar" instead of "P <foo, bar>".
huffman@33825
  1884
huffman@33825
  1885
* The constant "sq_le" (with infix syntax "<<" or "\<sqsubseteq>") has
huffman@33825
  1886
been renamed to "below".  The name "below" now replaces "less" in many
wenzelm@33842
  1887
theorem names.  (Legacy theorem names using "less" are still supported
wenzelm@33842
  1888
as well.)
huffman@33825
  1889
huffman@33825
  1890
* The 'fixrec' package now supports "bottom patterns".  Bottom
huffman@33825
  1891
patterns can be used to generate strictness rules, or to make
huffman@33825
  1892
functions more strict (much like the bang-patterns supported by the
wenzelm@33873
  1893
Glasgow Haskell Compiler).  See src/HOLCF/ex/Fixrec_ex.thy for
wenzelm@33873
  1894
examples.
huffman@33825
  1895
huffman@33825
  1896
wenzelm@31304
  1897
*** ML ***
wenzelm@31304
  1898
wenzelm@33843
  1899
* Support for Poly/ML 5.3.0, with improved reporting of compiler
wenzelm@33843
  1900
errors and run-time exceptions, including detailed source positions.
wenzelm@33843
  1901
wenzelm@33843
  1902
* Structure Name_Space (formerly NameSpace) now manages uniquely
wenzelm@33843
  1903
identified entries, with some additional information such as source
wenzelm@33843
  1904
position, logical grouping etc.
wenzelm@33843
  1905
wenzelm@33524
  1906
* Theory and context data is now introduced by the simplified and
wenzelm@33524
  1907
modernized functors Theory_Data, Proof_Data, Generic_Data.  Data needs
wenzelm@33524
  1908
to be pure, but the old TheoryDataFun for mutable data (with explicit
wenzelm@33524
  1909
copy operation) is still available for some time.
wenzelm@33524
  1910
wenzelm@32742
  1911
* Structure Synchronized (cf. src/Pure/Concurrent/synchronized.ML)
wenzelm@32742
  1912
provides a high-level programming interface to synchronized state
wenzelm@32742
  1913
variables with atomic update.  This works via pure function
wenzelm@32742
  1914
application within a critical section -- its runtime should be as
wenzelm@32742
  1915
short as possible; beware of deadlocks if critical code is nested,
wenzelm@32742
  1916
either directly or indirectly via other synchronized variables!
wenzelm@32742
  1917
wenzelm@32742
  1918
* Structure Unsynchronized (cf. src/Pure/ML-Systems/unsynchronized.ML)
wenzelm@32742
  1919
wraps raw ML references, explicitly indicating their non-thread-safe
wenzelm@32742
  1920
behaviour.  The Isar toplevel keeps this structure open, to
wenzelm@32742
  1921
accommodate Proof General as well as quick and dirty interactive
wenzelm@32742
  1922
experiments with references.
wenzelm@32742
  1923
wenzelm@32365
  1924
* PARALLEL_CHOICE and PARALLEL_GOALS provide basic support for
wenzelm@32365
  1925
parallel tactical reasoning.
wenzelm@32365
  1926
wenzelm@32427
  1927
* Tacticals Subgoal.FOCUS, Subgoal.FOCUS_PREMS, Subgoal.FOCUS_PARAMS
wenzelm@32427
  1928
are similar to SUBPROOF, but are slightly more flexible: only the
wenzelm@32427
  1929
specified parts of the subgoal are imported into the context, and the
wenzelm@32427
  1930
body tactic may introduce new subgoals and schematic variables.
wenzelm@32427
  1931
wenzelm@32427
  1932
* Old tactical METAHYPS, which does not observe the proof context, has
wenzelm@32427
  1933
been renamed to Old_Goals.METAHYPS and awaits deletion.  Use SUBPROOF
wenzelm@32427
  1934
or Subgoal.FOCUS etc.
wenzelm@32216
  1935
wenzelm@31971
  1936
* Renamed functor TableFun to Table, and GraphFun to Graph.  (Since
wenzelm@31971
  1937
functors have their own ML name space there is no point to mark them
wenzelm@31971
  1938
separately.)  Minor INCOMPATIBILITY.
wenzelm@31971
  1939
wenzelm@31901
  1940
* Renamed NamedThmsFun to Named_Thms.  INCOMPATIBILITY.
wenzelm@31901
  1941
wenzelm@33842
  1942
* Renamed several structures FooBar to Foo_Bar.  Occasional,
wenzelm@33842
  1943
INCOMPATIBILITY.
wenzelm@33842
  1944
wenzelm@33843
  1945
* Operations of structure Skip_Proof no longer require quick_and_dirty
wenzelm@33843
  1946
mode, which avoids critical setmp.
wenzelm@33843
  1947
wenzelm@31306
  1948
* Eliminated old Attrib.add_attributes, Method.add_methods and related
wenzelm@33842
  1949
combinators for "args".  INCOMPATIBILITY, need to use simplified
wenzelm@31306
  1950
Attrib/Method.setup introduced in Isabelle2009.
wenzelm@31304
  1951
wenzelm@32151
  1952
* Proper context for simpset_of, claset_of, clasimpset_of.  May fall
wenzelm@32151
  1953
back on global_simpset_of, global_claset_of, global_clasimpset_of as
wenzelm@32151
  1954
last resort.  INCOMPATIBILITY.
wenzelm@32151
  1955
wenzelm@32092
  1956
* Display.pretty_thm now requires a proper context (cf. former
wenzelm@32092
  1957
ProofContext.pretty_thm).  May fall back on Display.pretty_thm_global
wenzelm@32092
  1958
or even Display.pretty_thm_without_context as last resort.
wenzelm@32092
  1959
INCOMPATIBILITY.
wenzelm@32092
  1960
wenzelm@32433
  1961
* Discontinued Display.pretty_ctyp/cterm etc.  INCOMPATIBILITY, use
wenzelm@32433
  1962
Syntax.pretty_typ/term directly, preferably with proper context
wenzelm@32433
  1963
instead of global theory.
wenzelm@32433
  1964
wenzelm@31304
  1965
wenzelm@31308
  1966
*** System ***
wenzelm@31308
  1967
wenzelm@33842
  1968
* Further fine tuning of parallel proof checking, scales up to 8 cores
wenzelm@33842
  1969
(max. speedup factor 5.0).  See also Goal.parallel_proofs in ML and
wenzelm@33842
  1970
usedir option -q.
wenzelm@33842
  1971
wenzelm@32326
  1972
* Support for additional "Isabelle components" via etc/components, see
wenzelm@32326
  1973
also the system manual.
wenzelm@32326
  1974
wenzelm@32326
  1975
* The isabelle makeall tool now operates on all components with
wenzelm@32326
  1976
IsaMakefile, not just hardwired "logics".
wenzelm@32326
  1977
wenzelm@33842
  1978
* Removed "compress" option from isabelle-process and isabelle usedir;
wenzelm@33842
  1979
this is always enabled.
kleing@33818
  1980
wenzelm@31308
  1981
* Discontinued support for Poly/ML 4.x versions.
wenzelm@31308
  1982
wenzelm@33842
  1983
* Isabelle tool "wwwfind" provides web interface for 'find_theorems'
wenzelm@33842
  1984
on a given logic image.  This requires the lighttpd webserver and is
wenzelm@33842
  1985
currently supported on Linux only.
wenzelm@32061
  1986
wenzelm@31308
  1987
wenzelm@31304
  1988
wenzelm@30845
  1989
New in Isabelle2009 (April 2009)
wenzelm@30845
  1990
--------------------------------
haftmann@27104
  1991
wenzelm@27599
  1992
*** General ***
wenzelm@27599
  1993
wenzelm@28504
  1994
* Simplified main Isabelle executables, with less surprises on
wenzelm@28504
  1995
case-insensitive file-systems (such as Mac OS).
wenzelm@28504
  1996
wenzelm@28504
  1997
  - The main Isabelle tool wrapper is now called "isabelle" instead of
wenzelm@28504
  1998
    "isatool."
wenzelm@28504
  1999
wenzelm@28504
  2000
  - The former "isabelle" alias for "isabelle-process" has been
wenzelm@28504
  2001
    removed (should rarely occur to regular users).
wenzelm@28504
  2002
wenzelm@28915
  2003
  - The former "isabelle-interface" and its alias "Isabelle" have been
wenzelm@28915
  2004
    removed (interfaces are now regular Isabelle tools).
wenzelm@28504
  2005
wenzelm@28504
  2006
Within scripts and make files, the Isabelle environment variables
wenzelm@28504
  2007
ISABELLE_TOOL and ISABELLE_PROCESS replace old ISATOOL and ISABELLE,
wenzelm@28504
  2008
respectively.  (The latter are still available as legacy feature.)
wenzelm@28504
  2009
wenzelm@28915
  2010
The old isabelle-interface wrapper could react in confusing ways if
wenzelm@28915
  2011
the interface was uninstalled or changed otherwise.  Individual
wenzelm@28915
  2012
interface tool configuration is now more explicit, see also the
wenzelm@28915
  2013
Isabelle system manual.  In particular, Proof General is now available
wenzelm@28915
  2014
via "isabelle emacs".
wenzelm@28504
  2015
wenzelm@28504
  2016
INCOMPATIBILITY, need to adapt derivative scripts.  Users may need to
wenzelm@28504
  2017
purge installed copies of Isabelle executables and re-run "isabelle
wenzelm@28504
  2018
install -p ...", or use symlinks.
wenzelm@28504
  2019
wenzelm@28914
  2020
* The default for ISABELLE_HOME_USER is now ~/.isabelle instead of the
wenzelm@30845
  2021
old ~/isabelle, which was slightly non-standard and apt to cause
wenzelm@30845
  2022
surprises on case-insensitive file-systems (such as Mac OS).
wenzelm@28914
  2023
wenzelm@28914
  2024
INCOMPATIBILITY, need to move existing ~/isabelle/etc,
wenzelm@28914
  2025
~/isabelle/heaps, ~/isabelle/browser_info to the new place.  Special
wenzelm@28914
  2026
care is required when using older releases of Isabelle.  Note that
wenzelm@28914
  2027
ISABELLE_HOME_USER can be changed in Isabelle/etc/settings of any
wenzelm@30845
  2028
Isabelle distribution, in order to use the new ~/.isabelle uniformly.
wenzelm@28914
  2029
wenzelm@29161
  2030
* Proofs of fully specified statements are run in parallel on
wenzelm@30845
  2031
multi-core systems.  A speedup factor of 2.5 to 3.2 can be expected on
wenzelm@30845
  2032
a regular 4-core machine, if the initial heap space is made reasonably
wenzelm@30845
  2033
large (cf. Poly/ML option -H).  (Requires Poly/ML 5.2.1 or later.)
wenzelm@30845
  2034
wenzelm@30845
  2035
* The main reference manuals ("isar-ref", "implementation", and
wenzelm@30845
  2036
"system") have been updated and extended.  Formally checked references
wenzelm@30845
  2037
as hyperlinks are now available uniformly.
wenzelm@30845
  2038
wenzelm@30163
  2039
wenzelm@27599
  2040
*** Pure ***
wenzelm@27599
  2041
wenzelm@30845
  2042
* Complete re-implementation of locales.  INCOMPATIBILITY in several
wenzelm@30845
  2043
respects.  The most important changes are listed below.  See the
wenzelm@30845
  2044
Tutorial on Locales ("locales" manual) for details.
ballarin@29253
  2045
ballarin@29253
  2046
- In locale expressions, instantiation replaces renaming.  Parameters
ballarin@29253
  2047
must be declared in a for clause.  To aid compatibility with previous
ballarin@29253
  2048
parameter inheritance, in locale declarations, parameters that are not
ballarin@29253
  2049
'touched' (instantiation position "_" or omitted) are implicitly added
ballarin@29253
  2050
with their syntax at the beginning of the for clause.
ballarin@29253
  2051
ballarin@29253
  2052
- Syntax from abbreviations and definitions in locales is available in
ballarin@29253
  2053
locale expressions and context elements.  The latter is particularly
ballarin@29253
  2054
useful in locale declarations.
ballarin@29253
  2055
ballarin@29253
  2056
- More flexible mechanisms to qualify names generated by locale
ballarin@29253
  2057
expressions.  Qualifiers (prefixes) may be specified in locale
wenzelm@30728
  2058
expressions, and can be marked as mandatory (syntax: "name!:") or
wenzelm@30728
  2059
optional (syntax "name?:").  The default depends for plain "name:"
wenzelm@30728
  2060
depends on the situation where a locale expression is used: in
wenzelm@30728
  2061
commands 'locale' and 'sublocale' prefixes are optional, in
wenzelm@30845
  2062
'interpretation' and 'interpret' prefixes are mandatory.  The old
wenzelm@30728
  2063
implicit qualifiers derived from the parameter names of a locale are
wenzelm@30728
  2064
no longer generated.
wenzelm@30106
  2065
wenzelm@30845
  2066
- Command "sublocale l < e" replaces "interpretation l < e".  The
wenzelm@30106
  2067
instantiation clause in "interpretation" and "interpret" (square
wenzelm@30106
  2068
brackets) is no longer available.  Use locale expressions.
ballarin@29253
  2069
wenzelm@30845
  2070
- When converting proof scripts, mandatory qualifiers in
wenzelm@30728
  2071
'interpretation' and 'interpret' should be retained by default, even
wenzelm@30845
  2072
if this is an INCOMPATIBILITY compared to former behavior.  In the
wenzelm@30845
  2073
worst case, use the "name?:" form for non-mandatory ones.  Qualifiers
wenzelm@30845
  2074
in locale expressions range over a single locale instance only.
wenzelm@30845
  2075
wenzelm@30845
  2076
- Dropped locale element "includes".  This is a major INCOMPATIBILITY.
wenzelm@30845
  2077
In existing theorem specifications replace the includes element by the
wenzelm@30845
  2078
respective context elements of the included locale, omitting those
wenzelm@30845
  2079
that are already present in the theorem specification.  Multiple
wenzelm@30845
  2080
assume elements of a locale should be replaced by a single one
wenzelm@30845
  2081
involving the locale predicate.  In the proof body, declarations (most
wenzelm@30845
  2082
notably theorems) may be regained by interpreting the respective
wenzelm@30845
  2083
locales in the proof context as required (command "interpret").
wenzelm@30845
  2084
wenzelm@30845
  2085
If using "includes" in replacement of a target solely because the
wenzelm@30845
  2086
parameter types in the theorem are not as general as in the target,
wenzelm@30845
  2087
consider declaring a new locale with additional type constraints on
wenzelm@30845
  2088
the parameters (context element "constrains").
wenzelm@30845
  2089
wenzelm@30845
  2090
- Discontinued "locale (open)".  INCOMPATIBILITY.
wenzelm@30845
  2091
wenzelm@30845
  2092
- Locale interpretation commands no longer attempt to simplify goal.
wenzelm@30845
  2093
INCOMPATIBILITY: in rare situations the generated goal differs.  Use
wenzelm@30845
  2094
methods intro_locales and unfold_locales to clarify.
wenzelm@30845
  2095
wenzelm@30845
  2096
- Locale interpretation commands no longer accept interpretation
wenzelm@30845
  2097
attributes.  INCOMPATIBILITY.
wenzelm@30845
  2098
wenzelm@30845
  2099
* Class declaration: so-called "base sort" must not be given in import
wenzelm@30845
  2100
list any longer, but is inferred from the specification.  Particularly
wenzelm@30845
  2101
in HOL, write
wenzelm@30845
  2102
wenzelm@30845
  2103
    class foo = ...
wenzelm@30845
  2104
wenzelm@30845
  2105
instead of
wenzelm@30845
  2106
wenzelm@30845
  2107
    class foo = type + ...
wenzelm@30845
  2108
wenzelm@30845
  2109
* Class target: global versions of theorems stemming do not carry a
wenzelm@30845
  2110
parameter prefix any longer.  INCOMPATIBILITY.
wenzelm@30845
  2111
wenzelm@30845
  2112
* Class 'instance' command no longer accepts attached definitions.
wenzelm@30845
  2113
INCOMPATIBILITY, use proper 'instantiation' target instead.
wenzelm@30845
  2114
wenzelm@30845
  2115
* Recovered hiding of consts, which was accidentally broken in
wenzelm@30845
  2116
Isabelle2007.  Potential INCOMPATIBILITY, ``hide const c'' really
wenzelm@30845
  2117
makes c inaccessible; consider using ``hide (open) const c'' instead.
wenzelm@30845
  2118
wenzelm@30845
  2119
* Slightly more coherent Pure syntax, with updated documentation in
wenzelm@30845
  2120
isar-ref manual.  Removed locales meta_term_syntax and
wenzelm@30845
  2121
meta_conjunction_syntax: TERM and &&& (formerly &&) are now permanent,
wenzelm@30845
  2122
INCOMPATIBILITY in rare situations.  Note that &&& should not be used
wenzelm@30845
  2123
directly in regular applications.
wenzelm@30845
  2124
wenzelm@30845
  2125
* There is a new syntactic category "float_const" for signed decimal
wenzelm@30845
  2126
fractions (e.g. 123.45 or -123.45).
wenzelm@30845
  2127
wenzelm@30845
  2128
* Removed exotic 'token_translation' command.  INCOMPATIBILITY, use ML
wenzelm@30845
  2129
interface with 'setup' command instead.
wenzelm@30845
  2130
wenzelm@30845
  2131
* Command 'local_setup' is similar to 'setup', but operates on a local
wenzelm@30845
  2132
theory context.
haftmann@27104
  2133
wenzelm@28114
  2134
* The 'axiomatization' command now only works within a global theory
wenzelm@28114
  2135
context.  INCOMPATIBILITY.
wenzelm@28114
  2136
wenzelm@30845
  2137
* Goal-directed proof now enforces strict proof irrelevance wrt. sort
wenzelm@30845
  2138
hypotheses.  Sorts required in the course of reasoning need to be
wenzelm@30845
  2139
covered by the constraints in the initial statement, completed by the
wenzelm@30845
  2140
type instance information of the background theory.  Non-trivial sort
wenzelm@30845
  2141
hypotheses, which rarely occur in practice, may be specified via
wenzelm@30845
  2142
vacuous propositions of the form SORT_CONSTRAINT('a::c).  For example:
wenzelm@30845
  2143
wenzelm@30845
  2144
  lemma assumes "SORT_CONSTRAINT('a::empty)" shows False ...
wenzelm@30845
  2145
wenzelm@30845
  2146
The result contains an implicit sort hypotheses as before --
wenzelm@30845
  2147
SORT_CONSTRAINT premises are eliminated as part of the canonical rule
wenzelm@30845
  2148
normalization.
wenzelm@30845
  2149
wenzelm@30845
  2150
* Generalized Isar history, with support for linear undo, direct state
wenzelm@30845
  2151
addressing etc.
wenzelm@30845
  2152
wenzelm@30845
  2153
* Changed defaults for unify configuration options:
wenzelm@30845
  2154
wenzelm@30845
  2155
  unify_trace_bound = 50 (formerly 25)
wenzelm@30845
  2156
  unify_search_bound = 60 (formerly 30)
wenzelm@30845
  2157
wenzelm@30845
  2158
* Different bookkeeping for code equations (INCOMPATIBILITY):
wenzelm@30845
  2159
wenzelm@30845
  2160
  a) On theory merge, the last set of code equations for a particular
wenzelm@30845
  2161
     constant is taken (in accordance with the policy applied by other
wenzelm@30845
  2162
     parts of the code generator framework).
wenzelm@30845
  2163
wenzelm@30845
  2164
  b) Code equations stemming from explicit declarations (e.g. code
wenzelm@30845
  2165
     attribute) gain priority over default code equations stemming
wenzelm@30845
  2166
     from definition, primrec, fun etc.
wenzelm@30845
  2167
wenzelm@30845
  2168
* Keyword 'code_exception' now named 'code_abort'.  INCOMPATIBILITY.
wenzelm@30845
  2169
haftmann@30965
  2170
* Unified theorem tables for both code generators.  Thus [code
wenzelm@30845
  2171
func] has disappeared and only [code] remains.  INCOMPATIBILITY.
wenzelm@30577
  2172
wenzelm@30577
  2173
* Command 'find_consts' searches for constants based on type and name
wenzelm@30577
  2174
patterns, e.g.
kleing@29883
  2175
kleing@29883
  2176
    find_consts "_ => bool"
kleing@29883
  2177
wenzelm@30106
  2178
By default, matching is against subtypes, but it may be restricted to
wenzelm@30728
  2179
the whole type.  Searching by name is possible.  Multiple queries are
wenzelm@30106
  2180
conjunctive and queries may be negated by prefixing them with a
wenzelm@30106
  2181
hyphen:
kleing@29883
  2182
kleing@29883
  2183
    find_consts strict: "_ => bool" name: "Int" -"int => int"
kleing@29861
  2184
wenzelm@30845
  2185
* New 'find_theorems' criterion "solves" matches theorems that
wenzelm@30845
  2186
directly solve the current goal (modulo higher-order unification).
wenzelm@30845
  2187
wenzelm@30845
  2188
* Auto solve feature for main theorem statements: whenever a new goal
wenzelm@30845
  2189
is stated, "find_theorems solves" is called; any theorems that could
wenzelm@30845
  2190
solve the lemma directly are listed as part of the goal state.
wenzelm@30845
  2191
Cf. associated options in Proof General Isabelle settings menu,
wenzelm@30845
  2192
enabled by default, with reasonable timeout for pathological cases of
wenzelm@30845
  2193
higher-order unification.
webertj@30415
  2194
haftmann@27104
  2195
wenzelm@27381
  2196
*** Document preparation ***
wenzelm@27381
  2197
wenzelm@27381
  2198
* Antiquotation @{lemma} now imitates a regular terminal proof,
wenzelm@27392
  2199
demanding keyword 'by' and supporting the full method expression
wenzelm@27519
  2200
syntax just like the Isar command 'by'.
wenzelm@27381
  2201
wenzelm@27381
  2202
haftmann@27104
  2203
*** HOL ***
haftmann@27104
  2204
wenzelm@30845
  2205
* Integrated main parts of former image HOL-Complex with HOL.  Entry
wenzelm@30845
  2206
points Main and Complex_Main remain as before.
wenzelm@30845
  2207
wenzelm@30845
  2208
* Logic image HOL-Plain provides a minimal HOL with the most important
wenzelm@30845
  2209
tools available (inductive, datatype, primrec, ...).  This facilitates
wenzelm@30845
  2210
experimentation and tool development.  Note that user applications
wenzelm@30845
  2211
(and library theories) should never refer to anything below theory
wenzelm@30845
  2212
Main, as before.
wenzelm@30845
  2213
wenzelm@30845
  2214
* Logic image HOL-Main stops at theory Main, and thus facilitates
wenzelm@30845
  2215
experimentation due to shorter build times.
wenzelm@30845
  2216
wenzelm@30845
  2217
* Logic image HOL-NSA contains theories of nonstandard analysis which
wenzelm@30845
  2218
were previously part of former HOL-Complex.  Entry point Hyperreal
wenzelm@30845
  2219
remains valid, but theories formerly using Complex_Main should now use
wenzelm@30845
  2220
new entry point Hypercomplex.
wenzelm@30845
  2221
wenzelm@30845
  2222
* Generic ATP manager for Sledgehammer, based on ML threads instead of
wenzelm@30845
  2223
Posix processes.  Avoids potentially expensive forking of the ML
wenzelm@30845
  2224
process.  New thread-based implementation also works on non-Unix
wenzelm@30845
  2225
platforms (Cygwin).  Provers are no longer hardwired, but defined
wenzelm@30845
  2226
within the theory via plain ML wrapper functions.  Basic Sledgehammer
wenzelm@30845
  2227
commands are covered in the isar-ref manual.
wenzelm@30845
  2228
wenzelm@30845
  2229
* Wrapper scripts for remote SystemOnTPTP service allows to use
wenzelm@30845
  2230
sledgehammer without local ATP installation (Vampire etc.). Other
wenzelm@30845
  2231
provers may be included via suitable ML wrappers, see also
wenzelm@30845
  2232
src/HOL/ATP_Linkup.thy.
wenzelm@30845
  2233
wenzelm@30845
  2234
* ATP selection (E/Vampire/Spass) is now via Proof General's settings
wenzelm@30845
  2235
menu.
wenzelm@30845
  2236
wenzelm@30845
  2237
* The metis method no longer fails because the theorem is too trivial
wenzelm@30845
  2238
(contains the empty clause).
wenzelm@30845
  2239
wenzelm@30845
  2240
* The metis method now fails in the usual manner, rather than raising
wenzelm@30845
  2241
an exception, if it determines that it cannot prove the theorem.
wenzelm@30845
  2242
wenzelm@30845
  2243
* Method "coherent" implements a prover for coherent logic (see also
wenzelm@30845
  2244
src/Tools/coherent.ML).
wenzelm@30845
  2245
wenzelm@30845
  2246
* Constants "undefined" and "default" replace "arbitrary".  Usually
wenzelm@30845
  2247
"undefined" is the right choice to replace "arbitrary", though
wenzelm@30845
  2248
logically there is no difference.  INCOMPATIBILITY.
wenzelm@30845
  2249
wenzelm@30845
  2250
* Command "value" now integrates different evaluation mechanisms.  The
wenzelm@30845
  2251
result of the first successful evaluation mechanism is printed.  In
wenzelm@30845
  2252
square brackets a particular named evaluation mechanisms may be
wenzelm@30845
  2253
specified (currently, [SML], [code] or [nbe]).  See further
wenzelm@30845
  2254
src/HOL/ex/Eval_Examples.thy.
wenzelm@30845
  2255
wenzelm@30845
  2256
* Normalization by evaluation now allows non-leftlinear equations.
wenzelm@30845
  2257
Declare with attribute [code nbe].
wenzelm@30845
  2258
wenzelm@30845
  2259
* Methods "case_tac" and "induct_tac" now refer to the very same rules
wenzelm@30845
  2260
as the structured Isar versions "cases" and "induct", cf. the
wenzelm@30845
  2261
corresponding "cases" and "induct" attributes.  Mutual induction rules
wenzelm@30845
  2262
are now presented as a list of individual projections
wenzelm@30845
  2263
(e.g. foo_bar.inducts for types foo and bar); the old format with
wenzelm@30845
  2264
explicit HOL conjunction is no longer supported.  INCOMPATIBILITY, in
wenzelm@30845
  2265
rare situations a different rule is selected --- notably nested tuple
wenzelm@30845
  2266
elimination instead of former prod.exhaust: use explicit (case_tac t
wenzelm@30845
  2267
rule: prod.exhaust) here.
wenzelm@30845
  2268
wenzelm@30845
  2269
* Attributes "cases", "induct", "coinduct" support "del" option.
wenzelm@30845
  2270
wenzelm@30845
  2271
* Removed fact "case_split_thm", which duplicates "case_split".
wenzelm@30845
  2272
wenzelm@30845
  2273
* The option datatype has been moved to a new theory Option.  Renamed
wenzelm@30845
  2274
option_map to Option.map, and o2s to Option.set, INCOMPATIBILITY.
wenzelm@30845
  2275
wenzelm@30845
  2276
* New predicate "strict_mono" classifies strict functions on partial
wenzelm@30845
  2277
orders.  With strict functions on linear orders, reasoning about
wenzelm@30845
  2278
(in)equalities is facilitated by theorems "strict_mono_eq",
wenzelm@30845
  2279
"strict_mono_less_eq" and "strict_mono_less".
wenzelm@30845
  2280
wenzelm@30845
  2281
* Some set operations are now proper qualified constants with
wenzelm@30845
  2282
authentic syntax.  INCOMPATIBILITY:
haftmann@30304
  2283
haftmann@30304
  2284
    op Int ~>   Set.Int
haftmann@30304
  2285
    op Un ~>    Set.Un
haftmann@30304
  2286
    INTER ~>    Set.INTER
haftmann@30304
  2287
    UNION ~>    Set.UNION
haftmann@30304
  2288
    Inter ~>    Set.Inter
haftmann@30304
  2289
    Union ~>    Set.Union
haftmann@30304
  2290
    {} ~>       Set.empty
haftmann@30304
  2291
    UNIV ~>     Set.UNIV
haftmann@30304
  2292
wenzelm@30845
  2293
* Class complete_lattice with operations Inf, Sup, INFI, SUPR now in
wenzelm@30845
  2294
theory Set.
wenzelm@30845
  2295
wenzelm@30845
  2296
* Auxiliary class "itself" has disappeared -- classes without any
wenzelm@30845
  2297
parameter are treated as expected by the 'class' command.
haftmann@29797
  2298
haftmann@29823
  2299
* Leibnitz's Series for Pi and the arcus tangens and logarithm series.
haftmann@29823
  2300
wenzelm@30845
  2301
* Common decision procedures (Cooper, MIR, Ferrack, Approximation,
wenzelm@30845
  2302
Dense_Linear_Order) are now in directory HOL/Decision_Procs.
wenzelm@30845
  2303
wenzelm@30845
  2304
* Theory src/HOL/Decision_Procs/Approximation provides the new proof
wenzelm@30845
  2305
method "approximation".  It proves formulas on real values by using
wenzelm@30845
  2306
interval arithmetic.  In the formulas are also the transcendental
wenzelm@30845
  2307
functions sin, cos, tan, atan, ln, exp and the constant pi are
wenzelm@30845
  2308
allowed. For examples see
wenzelm@30845
  2309
src/HOL/Descision_Procs/ex/Approximation_Ex.thy.
haftmann@29823
  2310
haftmann@29823
  2311
* Theory "Reflection" now resides in HOL/Library.
haftmann@29650
  2312
wenzelm@30845
  2313
* Entry point to Word library now simply named "Word".
wenzelm@30845
  2314
INCOMPATIBILITY.
haftmann@29628
  2315
haftmann@29197
  2316
* Made source layout more coherent with logical distribution
haftmann@29197
  2317
structure:
haftmann@28952
  2318
haftmann@28952
  2319
    src/HOL/Library/RType.thy ~> src/HOL/Typerep.thy
haftmann@28952
  2320
    src/HOL/Library/Code_Message.thy ~> src/HOL/
haftmann@28952
  2321
    src/HOL/Library/GCD.thy ~> src/HOL/
haftmann@28952
  2322
    src/HOL/Library/Order_Relation.thy ~> src/HOL/
haftmann@28952
  2323
    src/HOL/Library/Parity.thy ~> src/HOL/
haftmann@28952
  2324
    src/HOL/Library/Univ_Poly.thy ~> src/HOL/
huffman@30176
  2325
    src/HOL/Real/ContNotDenum.thy ~> src/HOL/Library/
haftmann@28952
  2326
    src/HOL/Real/Lubs.thy ~> src/HOL/
haftmann@28952
  2327
    src/HOL/Real/PReal.thy ~> src/HOL/
haftmann@28952
  2328
    src/HOL/Real/Rational.thy ~> src/HOL/
haftmann@28952
  2329
    src/HOL/Real/RComplete.thy ~> src/HOL/
haftmann@28952
  2330
    src/HOL/Real/RealDef.thy ~> src/HOL/
haftmann@28952
  2331
    src/HOL/Real/RealPow.thy ~> src/HOL/
haftmann@28952
  2332
    src/HOL/Real/Real.thy ~> src/HOL/
haftmann@28952
  2333
    src/HOL/Complex/Complex_Main.thy ~> src/HOL/
haftmann@28952
  2334
    src/HOL/Complex/Complex.thy ~> src/HOL/
huffman@30176
  2335
    src/HOL/Complex/FrechetDeriv.thy ~> src/HOL/Library/
huffman@30176
  2336
    src/HOL/Complex/Fundamental_Theorem_Algebra.thy ~> src/HOL/Library/
haftmann@28952
  2337
    src/HOL/Hyperreal/Deriv.thy ~> src/HOL/
haftmann@28952
  2338
    src/HOL/Hyperreal/Fact.thy ~> src/HOL/
haftmann@28952
  2339
    src/HOL/Hyperreal/Integration.thy ~> src/HOL/
haftmann@28952
  2340
    src/HOL/Hyperreal/Lim.thy ~> src/HOL/
haftmann@28952
  2341
    src/HOL/Hyperreal/Ln.thy ~> src/HOL/
haftmann@28952
  2342
    src/HOL/Hyperreal/Log.thy ~> src/HOL/
haftmann@28952
  2343
    src/HOL/Hyperreal/MacLaurin.thy ~> src/HOL/
haftmann@28952
  2344
    src/HOL/Hyperreal/NthRoot.thy ~> src/HOL/
haftmann@28952
  2345
    src/HOL/Hyperreal/Series.thy ~> src/HOL/
haftmann@29197
  2346
    src/HOL/Hyperreal/SEQ.thy ~> src/HOL/
haftmann@28952
  2347
    src/HOL/Hyperreal/Taylor.thy ~> src/HOL/
haftmann@28952
  2348
    src/HOL/Hyperreal/Transcendental.thy ~> src/HOL/
haftmann@28952
  2349
    src/HOL/Real/Float ~> src/HOL/Library/
haftmann@29197
  2350
    src/HOL/Real/HahnBanach ~> src/HOL/HahnBanach
haftmann@29197
  2351
    src/HOL/Real/RealVector.thy ~> src/HOL/
haftmann@28952
  2352
haftmann@28952
  2353
    src/HOL/arith_data.ML ~> src/HOL/Tools
haftmann@28952
  2354
    src/HOL/hologic.ML ~> src/HOL/Tools
haftmann@28952
  2355
    src/HOL/simpdata.ML ~> src/HOL/Tools
haftmann@28952
  2356
    src/HOL/int_arith1.ML ~> src/HOL/Tools/int_arith.ML
haftmann@28952
  2357
    src/HOL/int_factor_simprocs.ML ~> src/HOL/Tools
haftmann@28952
  2358
    src/HOL/nat_simprocs.ML ~> src/HOL/Tools
haftmann@28952
  2359
    src/HOL/Real/float_arith.ML ~> src/HOL/Tools
haftmann@28952
  2360
    src/HOL/Real/float_syntax.ML ~> src/HOL/Tools
haftmann@28952
  2361
    src/HOL/Real/rat_arith.ML ~> src/HOL/Tools
haftmann@28952
  2362
    src/HOL/Real/real_arith.ML ~> src/HOL/Tools
haftmann@28952
  2363
haftmann@29398
  2364
    src/HOL/Library/Array.thy ~> src/HOL/Imperative_HOL
haftmann@29398
  2365
    src/HOL/Library/Heap_Monad.thy ~> src/HOL/Imperative_HOL
haftmann@29398
  2366
    src/HOL/Library/Heap.thy ~> src/HOL/Imperative_HOL
haftmann@29398
  2367
    src/HOL/Library/Imperative_HOL.thy ~> src/HOL/Imperative_HOL
haftmann@29398
  2368
    src/HOL/Library/Ref.thy ~> src/HOL/Imperative_HOL
haftmann@29398
  2369
    src/HOL/Library/Relational.thy ~> src/HOL/Imperative_HOL
haftmann@29398
  2370
wenzelm@30845
  2371
* If methods "eval" and "evaluation" encounter a structured proof
wenzelm@30845
  2372
state with !!/==>, only the conclusion is evaluated to True (if
wenzelm@30845
  2373
possible), avoiding strange error messages.
wenzelm@30845
  2374
wenzelm@30845
  2375
* Method "sizechange" automates termination proofs using (a
wenzelm@30845
  2376
modification of) the size-change principle.  Requires SAT solver.  See
wenzelm@30845
  2377
src/HOL/ex/Termination.thy for examples.
wenzelm@30845
  2378
wenzelm@30845
  2379
* Simplifier: simproc for let expressions now unfolds if bound
wenzelm@30845
  2380
variable occurs at most once in let expression body.  INCOMPATIBILITY.
wenzelm@30845
  2381
wenzelm@30845
  2382
* Method "arith": Linear arithmetic now ignores all inequalities when
wenzelm@30845
  2383
fast_arith_neq_limit is exceeded, instead of giving up entirely.
wenzelm@30845
  2384
wenzelm@30845
  2385
* New attribute "arith" for facts that should always be used
wenzelm@30845
  2386
automatically by arithmetic. It is intended to be used locally in
wenzelm@30845
  2387
proofs, e.g.
wenzelm@30845
  2388
wenzelm@30845
  2389
  assumes [arith]: "x > 0"
wenzelm@30845
  2390
nipkow@30706
  2391
Global usage is discouraged because of possible performance impact.
nipkow@30706
  2392
wenzelm@30845
  2393
* New classes "top" and "bot" with corresponding operations "top" and
wenzelm@30845
  2394
"bot" in theory Orderings; instantiation of class "complete_lattice"
wenzelm@30845
  2395
requires instantiation of classes "top" and "bot".  INCOMPATIBILITY.
wenzelm@30845
  2396
wenzelm@30845
  2397
* Changed definition lemma "less_fun_def" in order to provide an
wenzelm@30845
  2398
instance for preorders on functions; use lemma "less_le" instead.
wenzelm@30845
  2399
INCOMPATIBILITY.
wenzelm@30845
  2400
wenzelm@30845
  2401
* Theory Orderings: class "wellorder" moved here, with explicit
wenzelm@30845
  2402
induction rule "less_induct" as assumption.  For instantiation of
wenzelm@30845
  2403
"wellorder" by means of predicate "wf", use rule wf_wellorderI.
wenzelm@30845
  2404
INCOMPATIBILITY.
wenzelm@30845
  2405
wenzelm@30845
  2406
* Theory Orderings: added class "preorder" as superclass of "order".
wenzelm@27793
  2407
INCOMPATIBILITY: Instantiation proofs for order, linorder
wenzelm@27793
  2408
etc. slightly changed.  Some theorems named order_class.* now named
wenzelm@27793
  2409
preorder_class.*.
wenzelm@27793
  2410
wenzelm@30845
  2411
* Theory Relation: renamed "refl" to "refl_on", "reflexive" to "refl,
wenzelm@30845
  2412
"diag" to "Id_on".
wenzelm@30845
  2413
wenzelm@30845
  2414
* Theory Finite_Set: added a new fold combinator of type
wenzelm@30845
  2415
nipkow@28855
  2416
  ('a => 'b => 'b) => 'b => 'a set => 'b
wenzelm@30845
  2417
wenzelm@30845
  2418
Occasionally this is more convenient than the old fold combinator
wenzelm@30845
  2419
which is now defined in terms of the new one and renamed to
wenzelm@30845
  2420
fold_image.
wenzelm@30845
  2421
wenzelm@30845
  2422
* Theories Ring_and_Field and OrderedGroup: The lemmas "group_simps"
wenzelm@30845
  2423
and "ring_simps" have been replaced by "algebra_simps" (which can be
wenzelm@30845
  2424
extended with further lemmas!).  At the moment both still exist but
wenzelm@30845
  2425
the former will disappear at some point.
wenzelm@30845
  2426
wenzelm@30845
  2427
* Theory Power: Lemma power_Suc is now declared as a simp rule in
wenzelm@30845
  2428
class recpower.  Type-specific simp rules for various recpower types
wenzelm@30845
  2429
have been removed.  INCOMPATIBILITY, rename old lemmas as follows:
huffman@30273
  2430
huffman@30273
  2431
rat_power_0    -> power_0
huffman@30273
  2432
rat_power_Suc  -> power_Suc
huffman@30273
  2433
realpow_0      -> power_0
huffman@30273
  2434
realpow_Suc    -> power_Suc
huffman@30273
  2435
complexpow_0   -> power_0
huffman@30273
  2436
complexpow_Suc -> power_Suc
huffman@30273
  2437
power_poly_0   -> power_0
huffman@30273
  2438
power_poly_Suc -> power_Suc
huffman@30273
  2439
wenzelm@30845
  2440
* Theories Ring_and_Field and Divides: Definition of "op dvd" has been
wenzelm@27793
  2441
moved to separate class dvd in Ring_and_Field; a couple of lemmas on
wenzelm@27793
  2442
dvd has been generalized to class comm_semiring_1.  Likewise a bunch
wenzelm@27793
  2443
of lemmas from Divides has been generalized from nat to class
wenzelm@27793
  2444
semiring_div.  INCOMPATIBILITY.  This involves the following theorem
wenzelm@27793
  2445
renames resulting from duplicate elimination:
haftmann@27651
  2446
haftmann@27651
  2447
    dvd_def_mod ~>          dvd_eq_mod_eq_0
haftmann@27651
  2448
    zero_dvd_iff ~>         dvd_0_left_iff
haftmann@28559
  2449
    dvd_0 ~>                dvd_0_right
haftmann@27651
  2450
    DIVISION_BY_ZERO_DIV ~> div_by_0
haftmann@27651
  2451
    DIVISION_BY_ZERO_MOD ~> mod_by_0
haftmann@27651
  2452
    mult_div ~>             div_mult_self2_is_id
haftmann@27651
  2453
    mult_mod ~>             mod_mult_self2_is_0
haftmann@27651
  2454
wenzelm@30845
  2455
* Theory IntDiv: removed many lemmas that are instances of class-based
wenzelm@30845
  2456
generalizations (from Divides and Ring_and_Field).  INCOMPATIBILITY,
wenzelm@30845
  2457
rename old lemmas as follows:
nipkow@30044
  2458
nipkow@30044
  2459
dvd_diff               -> nat_dvd_diff
nipkow@30044
  2460
dvd_zminus_iff         -> dvd_minus_iff
nipkow@30224
  2461
mod_add1_eq            -> mod_add_eq
nipkow@30224
  2462
mod_mult1_eq           -> mod_mult_right_eq
nipkow@30224
  2463
mod_mult1_eq'          -> mod_mult_left_eq
nipkow@30224
  2464
mod_mult_distrib_mod   -> mod_mult_eq
nipkow@30044
  2465
nat_mod_add_left_eq    -> mod_add_left_eq
nipkow@30044
  2466
nat_mod_add_right_eq   -> mod_add_right_eq
nipkow@30044
  2467
nat_mod_div_trivial    -> mod_div_trivial
nipkow@30044
  2468
nat_mod_mod_trivial    -> mod_mod_trivial
nipkow@30044
  2469
zdiv_zadd_self1        -> div_add_self1
nipkow@30044
  2470
zdiv_zadd_self2        -> div_add_self2
nipkow@30181
  2471
zdiv_zmult_self1       -> div_mult_self2_is_id
nipkow@30044
  2472
zdiv_zmult_self2       -> div_mult_self1_is_id
nipkow@30044
  2473
zdvd_triv_left         -> dvd_triv_left
nipkow@30044
  2474
zdvd_triv_right        -> dvd_triv_right
nipkow@30044
  2475
zdvd_zmult_cancel_disj -> dvd_mult_cancel_left
nipkow@30085
  2476
zmod_eq0_zdvd_iff      -> dvd_eq_mod_eq_0[symmetric]
nipkow@30044
  2477
zmod_zadd_left_eq      -> mod_add_left_eq
nipkow@30044
  2478
zmod_zadd_right_eq     -> mod_add_right_eq
nipkow@30044
  2479
zmod_zadd_self1        -> mod_add_self1
nipkow@30044
  2480
zmod_zadd_self2        -> mod_add_self2
nipkow@30224
  2481
zmod_zadd1_eq          -> mod_add_eq
nipkow@30044
  2482
zmod_zdiff1_eq         -> mod_diff_eq
nipkow@30044
  2483
zmod_zdvd_zmod         -> mod_mod_cancel
nipkow@30044
  2484
zmod_zmod_cancel       -> mod_mod_cancel
nipkow@30044
  2485
zmod_zmult_self1       -> mod_mult_self2_is_0
nipkow@30044
  2486
zmod_zmult_self2       -> mod_mult_self1_is_0
nipkow@30044
  2487
zmod_1                 -> mod_by_1
nipkow@30044
  2488
zdiv_1                 -> div_by_1
nipkow@30044
  2489
zdvd_abs1              -> abs_dvd_iff
nipkow@30044
  2490
zdvd_abs2              -> dvd_abs_iff
nipkow@30044
  2491
zdvd_refl              -> dvd_refl
nipkow@30044
  2492
zdvd_trans             -> dvd_trans
nipkow@30044
  2493
zdvd_zadd              -> dvd_add
nipkow@30044
  2494
zdvd_zdiff             -> dvd_diff
nipkow@30044
  2495
zdvd_zminus_iff        -> dvd_minus_iff
nipkow@30044
  2496
zdvd_zminus2_iff       -> minus_dvd_iff
nipkow@30044
  2497
zdvd_zmultD            -> dvd_mult_right
nipkow@30044
  2498
zdvd_zmultD2           -> dvd_mult_left
nipkow@30044
  2499
zdvd_zmult_mono        -> mult_dvd_mono
nipkow@30044
  2500
zdvd_0_right           -> dvd_0_right
nipkow@30044
  2501
zdvd_0_left            -> dvd_0_left_iff
nipkow@30044
  2502
zdvd_1_left            -> one_dvd
nipkow@30044
  2503
zminus_dvd_iff         -> minus_dvd_iff
nipkow@30044
  2504
wenzelm@30845
  2505
* Theory Rational: 'Fract k 0' now equals '0'.  INCOMPATIBILITY.
wenzelm@30845
  2506
wenzelm@30845
  2507
* The real numbers offer decimal input syntax: 12.34 is translated
wenzelm@30845
  2508
into 1234/10^2. This translation is not reversed upon output.
wenzelm@30845
  2509
wenzelm@30845
  2510
* Theory Library/Polynomial defines an abstract type 'a poly of
wenzelm@30845
  2511
univariate polynomials with coefficients of type 'a.  In addition to
wenzelm@30845
  2512
the standard ring operations, it also supports div and mod.  Code
wenzelm@30845
  2513
generation is also supported, using list-style constructors.
wenzelm@30845
  2514
wenzelm@30845
  2515
* Theory Library/Inner_Product defines a class of real_inner for real
wenzelm@30845
  2516
inner product spaces, with an overloaded operation inner :: 'a => 'a
wenzelm@30845
  2517
=> real.  Class real_inner is a subclass of real_normed_vector from
wenzelm@30845
  2518
theory RealVector.
wenzelm@30845
  2519
wenzelm@30845
  2520
* Theory Library/Product_Vector provides instances for the product
wenzelm@30845
  2521
type 'a * 'b of several classes from RealVector and Inner_Product.
wenzelm@30845
  2522
Definitions of addition, subtraction, scalar multiplication, norms,
wenzelm@30845
  2523
and inner products are included.
wenzelm@30845
  2524
wenzelm@30845
  2525
* Theory Library/Bit defines the field "bit" of integers modulo 2.  In
wenzelm@30845
  2526
addition to the field operations, numerals and case syntax are also
wenzelm@30845
  2527
supported.
wenzelm@30845
  2528
wenzelm@30845
  2529
* Theory Library/Diagonalize provides constructive version of Cantor's
wenzelm@30845
  2530
first diagonalization argument.
wenzelm@30845
  2531
wenzelm@30845
  2532
* Theory Library/GCD: Curried operations gcd, lcm (for nat) and zgcd,
wenzelm@27599
  2533
zlcm (for int); carried together from various gcd/lcm developements in
wenzelm@30845
  2534
the HOL Distribution.  Constants zgcd and zlcm replace former igcd and
wenzelm@30845
  2535
ilcm; corresponding theorems renamed accordingly.  INCOMPATIBILITY,
wenzelm@30845
  2536
may recover tupled syntax as follows:
haftmann@27556
  2537
haftmann@27556
  2538
    hide (open) const gcd
haftmann@27556
  2539
    abbreviation gcd where
haftmann@27556
  2540
      "gcd == (%(a, b). GCD.gcd a b)"
haftmann@27556
  2541
    notation (output)
haftmann@27556
  2542
      GCD.gcd ("gcd '(_, _')")
haftmann@27556
  2543
wenzelm@30845
  2544
The same works for lcm, zgcd, zlcm.
wenzelm@30845
  2545
wenzelm@30845
  2546
* Theory Library/Nat_Infinity: added addition, numeral syntax and more
wenzelm@30845
  2547
instantiations for algebraic structures.  Removed some duplicate
wenzelm@30845
  2548
theorems.  Changes in simp rules.  INCOMPATIBILITY.
wenzelm@30845
  2549
wenzelm@30845
  2550
* ML antiquotation @{code} takes a constant as argument and generates
haftmann@27651
  2551
corresponding code in background and inserts name of the corresponding
haftmann@27651
  2552
resulting ML value/function/datatype constructor binding in place.
haftmann@27651
  2553
All occurrences of @{code} with a single ML block are generated
haftmann@27651
  2554
simultaneously.  Provides a generic and safe interface for
wenzelm@30845
  2555
instrumentalizing code generation.  See
wenzelm@30845
  2556
src/HOL/Decision_Procs/Ferrack.thy for a more ambitious application.
wenzelm@30845
  2557
In future you ought to refrain from ad-hoc compiling generated SML
wenzelm@30845
  2558
code on the ML toplevel.  Note that (for technical reasons) @{code}
wenzelm@30845
  2559
cannot refer to constants for which user-defined serializations are
wenzelm@30845
  2560
set.  Refer to the corresponding ML counterpart directly in that
wenzelm@30845
  2561
cases.
wenzelm@27122
  2562
wenzelm@27122
  2563
* Command 'rep_datatype': instead of theorem names the command now
wenzelm@27122
  2564
takes a list of terms denoting the constructors of the type to be
wenzelm@27122
  2565
represented as datatype.  The characteristic theorems have to be
wenzelm@27122
  2566
proven.  INCOMPATIBILITY.  Also observe that the following theorems
wenzelm@27122
  2567
have disappeared in favour of existing ones:
wenzelm@27122
  2568
haftmann@27104
  2569
    unit_induct                 ~> unit.induct
haftmann@27104
  2570
    prod_induct                 ~> prod.induct
haftmann@27104
  2571
    sum_induct                  ~> sum.induct
haftmann@27104
  2572
    Suc_Suc_eq                  ~> nat.inject
haftmann@27104
  2573
    Suc_not_Zero Zero_not_Suc   ~> nat.distinct
haftmann@27104
  2574
haftmann@27104
  2575
ballarin@27696
  2576
*** HOL-Algebra ***
ballarin@27696
  2577
ballarin@27713
  2578
* New locales for orders and lattices where the equivalence relation
wenzelm@30106
  2579
is not restricted to equality.  INCOMPATIBILITY: all order and lattice
wenzelm@30106
  2580
locales use a record structure with field eq for the equivalence.
ballarin@27713
  2581
ballarin@27713
  2582
* New theory of factorial domains.
ballarin@27713
  2583
wenzelm@30845
  2584
* Units_l_inv and Units_r_inv are now simp rules by default.
ballarin@27696
  2585
INCOMPATIBILITY.  Simplifier proof that require deletion of l_inv
ballarin@27696
  2586
and/or r_inv will now also require deletion of these lemmas.
ballarin@27696
  2587
wenzelm@30845
  2588
* Renamed the following theorems, INCOMPATIBILITY:
wenzelm@30845
  2589
ballarin@27696
  2590
UpperD ~> Upper_memD
ballarin@27696
  2591
LowerD ~> Lower_memD
ballarin@27696
  2592
least_carrier ~> least_closed
ballarin@27696
  2593
greatest_carrier ~> greatest_closed
ballarin@27696
  2594
greatest_Lower_above ~> greatest_Lower_below
ballarin@27717
  2595
one_zero ~> carrier_one_zero
ballarin@27717
  2596
one_not_zero ~> carrier_one_not_zero  (collision with assumption)
ballarin@27696
  2597
wenzelm@27793
  2598
wenzelm@30849
  2599
*** HOL-Nominal ***
wenzelm@30849
  2600
wenzelm@30855
  2601
* Nominal datatypes can now contain type-variables.
wenzelm@30855
  2602
wenzelm@30855
  2603
* Commands 'nominal_inductive' and 'equivariance' work with local
wenzelm@30855
  2604
theory targets.
wenzelm@30855
  2605
wenzelm@30855
  2606
* Nominal primrec can now works with local theory targets and its
wenzelm@30855
  2607
specification syntax now conforms to the general format as seen in
wenzelm@30855
  2608
'inductive' etc.
wenzelm@30855
  2609
wenzelm@30855
  2610
* Method "perm_simp" honours the standard simplifier attributes
wenzelm@30855
  2611
(no_asm), (no_asm_use) etc.
wenzelm@30855
  2612
wenzelm@30855
  2613
* The new predicate #* is defined like freshness, except that on the
wenzelm@30855
  2614
left hand side can be a set or list of atoms.
wenzelm@30855
  2615
wenzelm@30855
  2616
* Experimental command 'nominal_inductive2' derives strong induction
wenzelm@30855
  2617
principles for inductive definitions.  In contrast to
wenzelm@30855
  2618
'nominal_inductive', which can only deal with a fixed number of
wenzelm@30855
  2619
binders, it can deal with arbitrary expressions standing for sets of
wenzelm@30855
  2620
atoms to be avoided.  The only inductive definition we have at the
wenzelm@30855
  2621
moment that needs this generalisation is the typing rule for Lets in
wenzelm@30855
  2622
the algorithm W:
wenzelm@30855
  2623
wenzelm@30855
  2624
 Gamma |- t1 : T1   (x,close Gamma T1)::Gamma |- t2 : T2   x#Gamma
wenzelm@30855
  2625
 -----------------------------------------------------------------
wenzelm@30855
  2626
         Gamma |- Let x be t1 in t2 : T2
wenzelm@30855
  2627
wenzelm@30855
  2628
In this rule one wants to avoid all the binders that are introduced by
wenzelm@30855
  2629
"close Gamma T1".  We are looking for other examples where this
wenzelm@30855
  2630
feature might be useful.  Please let us know.
wenzelm@30849
  2631
wenzelm@30849
  2632
huffman@30176
  2633
*** HOLCF ***
huffman@30176
  2634
huffman@30176
  2635
* Reimplemented the simplification procedure for proving continuity
huffman@30176
  2636
subgoals.  The new simproc is extensible; users can declare additional
huffman@30176
  2637
continuity introduction rules with the attribute [cont2cont].
huffman@30176
  2638
huffman@30176
  2639
* The continuity simproc now uses a different introduction rule for
huffman@30176
  2640
solving continuity subgoals on terms with lambda abstractions.  In
huffman@30176
  2641
some rare cases the new simproc may fail to solve subgoals that the
huffman@30176
  2642
old one could solve, and "simp add: cont2cont_LAM" may be necessary.
huffman@30176
  2643
Potential INCOMPATIBILITY.
huffman@30176
  2644
wenzelm@30847
  2645
* Command 'fixrec': specification syntax now conforms to the general
wenzelm@30855
  2646
format as seen in 'inductive' etc.  See src/HOLCF/ex/Fixrec_ex.thy for
wenzelm@30855
  2647
examples.  INCOMPATIBILITY.
wenzelm@30845
  2648
wenzelm@30845
  2649
wenzelm@30845
  2650
*** ZF ***
wenzelm@30845
  2651
wenzelm@30845
  2652
* Proof of Zorn's Lemma for partial orders.
huffman@30176
  2653
huffman@30176
  2654
wenzelm@27246
  2655
*** ML ***
wenzelm@28088
  2656
wenzelm@30845
  2657
* Multithreading for Poly/ML 5.1/5.2 is no longer supported, only for
wenzelm@30845
  2658
Poly/ML 5.2.1 or later.  Important note: the TimeLimit facility
wenzelm@30845
  2659
depends on multithreading, so timouts will not work before Poly/ML
wenzelm@30845
  2660
5.2.1!
wenzelm@30845
  2661
wenzelm@29161
  2662
* High-level support for concurrent ML programming, see
wenzelm@29161
  2663
src/Pure/Cuncurrent.  The data-oriented model of "future values" is
wenzelm@29161
  2664
particularly convenient to organize independent functional
wenzelm@29161
  2665
computations.  The concept of "synchronized variables" provides a
wenzelm@29161
  2666