NEWS
author wenzelm
Fri Jun 29 16:45:54 2018 +0200 (13 months ago)
changeset 68541 12b4b3bc585d
parent 68540 000a0e062529
child 68543 c87e1adb91af
permissions -rw-r--r--
command-line option for include_sessions;
wenzelm@57491
     1
Isabelle NEWS -- history of user-relevant changes
wenzelm@57491
     2
=================================================
wenzelm@2553
     3
wenzelm@62114
     4
(Note: Isabelle/jEdit shows a tree-view of the NEWS file in Sidekick.)
wenzelm@60006
     5
wenzelm@64603
     6
wenzelm@68391
     7
New in Isabelle2018 (August 2018)
wenzelm@68391
     8
---------------------------------
wenzelm@66651
     9
wenzelm@66712
    10
*** General ***
wenzelm@66712
    11
wenzelm@68393
    12
* Session-qualified theory names are mandatory: it is no longer possible
wenzelm@68393
    13
to refer to unqualified theories from the parent session.
wenzelm@68393
    14
INCOMPATIBILITY for old developments that have not been updated to
wenzelm@68393
    15
Isabelle2017 yet (using the "isabelle imports" tool).
wenzelm@68393
    16
wenzelm@68393
    17
* Only the most fundamental theory names are global, usually the entry
wenzelm@68393
    18
points to major logic sessions: Pure, Main, Complex_Main, HOLCF, IFOL,
wenzelm@68393
    19
FOL, ZF, ZFC etc. INCOMPATIBILITY, need to use qualified names for
wenzelm@68393
    20
formerly global "HOL-Probability.Probability" and "HOL-SPARK.SPARK".
wenzelm@68393
    21
wenzelm@68540
    22
* Global facts need to be closed: no free variables, no hypotheses, no
wenzelm@68540
    23
pending sort hypotheses. Rare INCOMPATIBILITY: sort hypotheses can be
wenzelm@68540
    24
allowed via "declare [[pending_shyps]]" in the global theory context,
wenzelm@68540
    25
but it should be reset to false afterwards.
wenzelm@68540
    26
wenzelm@67446
    27
* Marginal comments need to be written exclusively in the new-style form
wenzelm@67446
    28
"\<comment> \<open>text\<close>", old ASCII variants like "-- {* ... *}" are no longer
wenzelm@67446
    29
supported. INCOMPATIBILITY, use the command-line tool "isabelle
wenzelm@67446
    30
update_comments" to update existing theory files.
wenzelm@67446
    31
wenzelm@67507
    32
* Old-style inner comments (* ... *) within the term language are legacy
wenzelm@67507
    33
and will be discontinued soon: use formal comments "\<comment> \<open>...\<close>" or "\<^cancel>\<open>...\<close>"
wenzelm@67507
    34
instead.
wenzelm@67507
    35
nipkow@67402
    36
* The "op <infix-op>" syntax for infix operators has been replaced by
nipkow@67400
    37
"(<infix-op>)". If <infix-op> begins or ends with a "*", there needs to
nipkow@67400
    38
be a space between the "*" and the corresponding parenthesis.
nipkow@67400
    39
INCOMPATIBILITY.
nipkow@67398
    40
There is an Isabelle tool "update_op" that converts theory and ML files
nipkow@67398
    41
to the new syntax. Because it is based on regular expression matching,
nipkow@67398
    42
the result may need a bit of manual postprocessing. Invoking "isabelle
nipkow@67398
    43
update_op" converts all files in the current directory (recursively).
nipkow@67398
    44
In case you want to exclude conversion of ML files (because the tool
nipkow@67398
    45
frequently also converts ML's "op" syntax), use option "-m".
nipkow@67398
    46
wenzelm@67013
    47
* Theory header 'abbrevs' specifications need to be separated by 'and'.
wenzelm@67013
    48
INCOMPATIBILITY.
wenzelm@67013
    49
wenzelm@66757
    50
* Command 'external_file' declares the formal dependency on the given
wenzelm@66757
    51
file name, such that the Isabelle build process knows about it, but
wenzelm@66757
    52
without specific Prover IDE management.
wenzelm@66757
    53
wenzelm@66759
    54
* Session ROOT entries no longer allow specification of 'files'. Rare
wenzelm@66759
    55
INCOMPATIBILITY, use command 'external_file' within a proper theory
wenzelm@66759
    56
context.
wenzelm@66759
    57
wenzelm@66764
    58
* Session root directories may be specified multiple times: each
wenzelm@66764
    59
accessible ROOT file is processed only once. This facilitates
wenzelm@66764
    60
specification of $ISABELLE_HOME_USER/ROOTS or command-line options like
wenzelm@66764
    61
-d or -D for "isabelle build" and "isabelle jedit". Example:
wenzelm@66764
    62
wenzelm@66764
    63
  isabelle build -D '~~/src/ZF'
wenzelm@66764
    64
wenzelm@67263
    65
* The command 'display_drafts' has been discontinued. INCOMPATIBILITY,
wenzelm@67263
    66
use action "isabelle.draft" (or "print") in Isabelle/jEdit instead.
wenzelm@67263
    67
wenzelm@68393
    68
* In HTML output, the Isabelle symbol "\<hyphen>" is rendered as explicit
wenzelm@68393
    69
Unicode hyphen U+2010, to avoid unclear meaning of the old "soft hyphen"
wenzelm@68393
    70
U+00AD. Rare INCOMPATIBILITY, e.g. copy-paste of historic Isabelle HTML
wenzelm@68393
    71
output.
wenzelm@67305
    72
wenzelm@66712
    73
wenzelm@67261
    74
*** Isabelle/jEdit Prover IDE ***
wenzelm@66768
    75
wenzelm@68393
    76
* The command-line tool "isabelle jedit" provides more flexible options
wenzelm@68393
    77
for session management:
wenzelm@68393
    78
wenzelm@68472
    79
  - option -R builds an auxiliary logic image with all theories from
wenzelm@68472
    80
    other sessions that are not already present in its parent
wenzelm@68393
    81
wenzelm@68393
    82
  - option -S is like -R, with a focus on the selected session and its
wenzelm@68393
    83
    descendants (this reduces startup time for big projects like AFP)
wenzelm@68393
    84
wenzelm@68472
    85
  - option -A specifies an alternative ancestor session for options -R
wenzelm@68472
    86
    and -S
wenzelm@68472
    87
wenzelm@68541
    88
  - option -i includes additional sessions into the name-space of
wenzelm@68541
    89
    theories
wenzelm@68541
    90
wenzelm@68393
    91
  Examples:
wenzelm@68393
    92
    isabelle jedit -R HOL-Number_Theory
wenzelm@68393
    93
    isabelle jedit -R HOL-Number_Theory -A HOL
wenzelm@68393
    94
    isabelle jedit -d '$AFP' -S Formal_SSA -A HOL
wenzelm@68393
    95
    isabelle jedit -d '$AFP' -S Formal_SSA -A HOL-Analysis
wenzelm@68541
    96
    isabelle jedit -d '$AFP' -S Formal_SSA -A HOL-Analysis -i CryptHOL
wenzelm@68393
    97
wenzelm@68393
    98
* PIDE markup for session ROOT files: allows to complete session names,
wenzelm@68393
    99
follow links to theories and document files etc.
wenzelm@68393
   100
wenzelm@68393
   101
* Completion supports theory header imports, using theory base name.
wenzelm@68393
   102
E.g. "Prob" may be completed to "HOL-Probability.Probability".
wenzelm@68393
   103
wenzelm@68393
   104
* Named control symbols (without special Unicode rendering) are shown as
wenzelm@68393
   105
bold-italic keyword. This is particularly useful for the short form of
wenzelm@68393
   106
antiquotations with control symbol: \<^name>\<open>argument\<close>. The action
wenzelm@68393
   107
"isabelle.antiquoted_cartouche" turns an antiquotation with 0 or 1
wenzelm@68393
   108
arguments into this format.
wenzelm@68393
   109
wenzelm@68393
   110
* Completion provides templates for named symbols with arguments,
wenzelm@68393
   111
e.g. "\<comment> \<open>ARGUMENT\<close>" or "\<^emph>\<open>ARGUMENT\<close>".
wenzelm@68393
   112
wenzelm@68368
   113
* Slightly more parallel checking, notably for high priority print
wenzelm@68368
   114
functions (e.g. State output).
wenzelm@68368
   115
wenzelm@68080
   116
* The view title is set dynamically, according to the Isabelle
wenzelm@68080
   117
distribution and the logic session name. The user can override this via
wenzelm@68080
   118
set-view-title (stored persistently in $JEDIT_SETTINGS/perspective.xml).
wenzelm@68080
   119
wenzelm@67395
   120
* System options "spell_checker_include" and "spell_checker_exclude"
wenzelm@67395
   121
supersede former "spell_checker_elements" to determine regions of text
wenzelm@67395
   122
that are subject to spell-checking. Minor INCOMPATIBILITY.
wenzelm@67395
   123
wenzelm@67248
   124
* Action "isabelle.preview" is able to present more file formats,
wenzelm@67266
   125
notably bibtex database files and ML files.
wenzelm@67246
   126
wenzelm@67262
   127
* Action "isabelle.draft" is similar to "isabelle.preview", but shows a
wenzelm@68067
   128
plain-text document draft. Both are available via the menu "Plugins /
wenzelm@68067
   129
Isabelle".
wenzelm@67262
   130
wenzelm@68393
   131
* Bibtex database files (.bib) are semantically checked.
wenzelm@68393
   132
wenzelm@67304
   133
* When loading text files, the Isabelle symbols encoding UTF-8-Isabelle
wenzelm@67304
   134
is only used if there is no conflict with existing Unicode sequences in
wenzelm@67304
   135
the file. Otherwise, the fallback encoding is plain UTF-8 and Isabelle
wenzelm@67304
   136
symbols remain in literal \<symbol> form. This avoids accidental loss of
wenzelm@67304
   137
Unicode content when saving the file.
wenzelm@67304
   138
wenzelm@67993
   139
* Update to jedit-5.5.0, the latest release.
wenzelm@67993
   140
wenzelm@67246
   141
wenzelm@67261
   142
*** Isabelle/VSCode Prover IDE ***
wenzelm@67261
   143
wenzelm@67261
   144
* HTML preview of theories and other file-formats similar to
wenzelm@67261
   145
Isabelle/jEdit.
wenzelm@67261
   146
wenzelm@66768
   147
wenzelm@67140
   148
*** Document preparation ***
wenzelm@67140
   149
wenzelm@67448
   150
* Formal comments work uniformly in outer syntax, inner syntax (term
wenzelm@67448
   151
language), Isabelle/ML and some other embedded languages of Isabelle.
wenzelm@67448
   152
See also "Document comments" in the isar-ref manual. The following forms
wenzelm@67448
   153
are supported:
wenzelm@67448
   154
wenzelm@67448
   155
  - marginal text comment: \<comment> \<open>\<dots>\<close>
wenzelm@67448
   156
  - canceled source: \<^cancel>\<open>\<dots>\<close>
wenzelm@67448
   157
  - raw LaTeX: \<^latex>\<open>\<dots>\<close>
wenzelm@67413
   158
wenzelm@67381
   159
* Outside of the inner theory body, the default presentation context is
wenzelm@67381
   160
theory Pure. Thus elementary antiquotations may be used in markup
wenzelm@67381
   161
commands (e.g. 'chapter', 'section', 'text') and formal comments.
wenzelm@67381
   162
wenzelm@68513
   163
* System option "document_tags" specifies alternative command tags. This
wenzelm@68513
   164
is occasionally useful to control the global visibility of commands via
wenzelm@68513
   165
session options (e.g. in ROOT).
wenzelm@67140
   166
wenzelm@67140
   167
* Document markup commands ('section', 'text' etc.) are implicitly
wenzelm@67140
   168
tagged as "document" and visible by default. This avoids the application
wenzelm@67140
   169
of option "document_tags" to these commands.
wenzelm@67140
   170
wenzelm@67145
   171
* Isabelle names are mangled into LaTeX macro names to allow the full
wenzelm@67145
   172
identifier syntax with underscore, prime, digits. This is relevant for
wenzelm@67145
   173
antiquotations in control symbol notation, e.g. \<^const_name> becomes
wenzelm@67145
   174
\isactrlconstUNDERSCOREname.
wenzelm@67145
   175
wenzelm@68393
   176
* Document preparation with skip_proofs option now preserves the content
wenzelm@68393
   177
more accurately: only terminal proof steps ('by' etc.) are skipped.
wenzelm@67297
   178
wenzelm@68484
   179
* Document antiquotation @{theory name} requires the long
wenzelm@68484
   180
session-qualified theory name: this is what users reading the text
wenzelm@68484
   181
normally need to import.
wenzelm@68484
   182
wenzelm@67219
   183
* Document antiquotation @{session name} checks and prints the given
wenzelm@67219
   184
session name verbatim.
wenzelm@67219
   185
wenzelm@68393
   186
* Document antiquotation @{cite} now checks the given Bibtex entries
wenzelm@68393
   187
against the Bibtex database files -- only in batch-mode session builds.
wenzelm@67157
   188
wenzelm@67176
   189
* Command-line tool "isabelle document" has been re-implemented in
wenzelm@67194
   190
Isabelle/Scala, with simplified arguments and explicit errors from the
wenzelm@67203
   191
latex and bibtex process. Minor INCOMPATIBILITY.
wenzelm@67173
   192
wenzelm@68393
   193
* Session ROOT entry: empty 'document_files' means there is no document
wenzelm@68393
   194
for this session. There is no need to specify options [document = false]
wenzelm@68393
   195
anymore.
wenzelm@68393
   196
wenzelm@67140
   197
wenzelm@67702
   198
*** Isar ***
wenzelm@67702
   199
wenzelm@67702
   200
* Command 'interpret' no longer exposes resulting theorems as literal
wenzelm@67702
   201
facts, notably for the \<open>prop\<close> notation or the "fact" proof method. This
wenzelm@67702
   202
improves modularity of proofs and scalability of locale interpretation.
wenzelm@67702
   203
Rare INCOMPATIBILITY, need to refer to explicitly named facts instead
wenzelm@67702
   204
(e.g. use 'find_theorems' or 'try' to figure this out).
wenzelm@67702
   205
wenzelm@68393
   206
* The old 'def' command has been discontinued (legacy since
wenzelm@68393
   207
Isbelle2016-1). INCOMPATIBILITY, use 'define' instead -- usually with
wenzelm@68393
   208
object-logic equality or equivalence.
wenzelm@68393
   209
ballarin@67740
   210
* Rewrites clauses (keyword 'rewrites') were moved into the locale
wenzelm@68393
   211
expression syntax, where they are part of locale instances. In
wenzelm@68393
   212
interpretation commands rewrites clauses now need to occur before 'for'
ballarin@68469
   213
and 'defines'. Rare INCOMPATIBILITY; definitions immediately subject to
ballarin@68469
   214
rewriting may need to be pulled up into the surrounding theory.
wenzelm@68393
   215
wenzelm@68393
   216
* For 'rewrites' clauses, if activating a locale instance fails, fall
wenzelm@68393
   217
back to reading the clause first. This helps avoid qualification of
ballarin@67764
   218
locale instances where the qualifier's sole purpose is avoiding
ballarin@67764
   219
duplicate constant declarations.
ballarin@67741
   220
nipkow@68403
   221
* Proof method 'simp' now supports a new modifier 'flip:' followed by a list
nipkow@68403
   222
of theorems. Each of these theorems is removed from the simpset
nipkow@68403
   223
(without warning if it is not there) and the symmetric version of the theorem
nipkow@68403
   224
(i.e. lhs and rhs exchanged) is added to the simpset.
nipkow@68403
   225
For 'auto' and friends the modifier is "simp flip:".
nipkow@68403
   226
wenzelm@67702
   227
wenzelm@67718
   228
*** Pure ***
wenzelm@67718
   229
wenzelm@67718
   230
* The inner syntax category "sort" now includes notation "_" for the
wenzelm@67718
   231
dummy sort: it is effectively ignored in type-inference.
wenzelm@67718
   232
wenzelm@67718
   233
blanchet@66661
   234
*** HOL ***
blanchet@66661
   235
haftmann@68028
   236
* Clarified relationship of characters, strings and code generation:
haftmann@68028
   237
wenzelm@68393
   238
  - Type "char" is now a proper datatype of 8-bit values.
wenzelm@68393
   239
wenzelm@68393
   240
  - Conversions "nat_of_char" and "char_of_nat" are gone; use more
wenzelm@68393
   241
    general conversions "of_char" and "char_of" with suitable type
wenzelm@68393
   242
    constraints instead.
wenzelm@68393
   243
wenzelm@68393
   244
  - The zero character is just written "CHR 0x00", not "0" any longer.
wenzelm@68393
   245
wenzelm@68393
   246
  - Type "String.literal" (for code generation) is now isomorphic to
wenzelm@68393
   247
    lists of 7-bit (ASCII) values; concrete values can be written as
wenzelm@68393
   248
    "STR ''...''" for sequences of printable characters and "STR 0x..."
wenzelm@68393
   249
    for one single ASCII code point given as hexadecimal numeral.
wenzelm@68393
   250
wenzelm@68393
   251
  - Type "String.literal" supports concatenation "... + ..." for all
wenzelm@68393
   252
    standard target languages.
wenzelm@68393
   253
wenzelm@68393
   254
  - Theory HOL-Library.Code_Char is gone; study the explanations
wenzelm@68393
   255
    concerning "String.literal" in the tutorial on code generation to
wenzelm@68393
   256
    get an idea how target-language string literals can be converted to
wenzelm@68393
   257
    HOL string values and vice versa.
wenzelm@68393
   258
wenzelm@68393
   259
  - Session Imperative-HOL: operation "raise" directly takes a value of
wenzelm@68393
   260
    type "String.literal" as argument, not type "string".
wenzelm@68393
   261
wenzelm@68393
   262
INCOMPATIBILITY.
wenzelm@68393
   263
wenzelm@68393
   264
* Code generation: Code generation takes an explicit option
wenzelm@68393
   265
"case_insensitive" to accomodate case-insensitive file systems.
wenzelm@68393
   266
wenzelm@68393
   267
* Abstract bit operations as part of Main: push_bit, take_bit, drop_bit.
wenzelm@68393
   268
wenzelm@68393
   269
* New, more general, axiomatization of complete_distrib_lattice. The
wenzelm@68393
   270
former axioms:
wenzelm@68393
   271
wenzelm@68393
   272
  "sup x (Inf X) = Inf (sup x ` X)" and "inf x (Sup X) = Sup (inf x ` X)"
wenzelm@68393
   273
wenzelm@68393
   274
are replaced by:
wenzelm@68393
   275
wenzelm@68393
   276
  "Inf (Sup ` A) <= Sup (Inf ` {f ` A | f . (! Y \<in> A . f Y \<in> Y)})"
wenzelm@68393
   277
wenzelm@68393
   278
The instantiations of sets and functions as complete_distrib_lattice are
wenzelm@68393
   279
moved to Hilbert_Choice.thy because their proofs need the Hilbert choice
wenzelm@68393
   280
operator. The dual of this property is also proved in theory
wenzelm@68393
   281
HOL.Hilbert_Choice.
eberlm@67831
   282
lp15@67999
   283
* New syntax for the minimum/maximum of a function over a finite set:
wenzelm@68393
   284
MIN x\<in>A. B and even MIN x. B (only useful for finite types), also MAX.
lp15@67999
   285
haftmann@67525
   286
* Clarifed theorem names:
haftmann@67525
   287
haftmann@67525
   288
  Min.antimono ~> Min.subset_imp
haftmann@67525
   289
  Max.antimono ~> Max.subset_imp
haftmann@67525
   290
haftmann@67525
   291
Minor INCOMPATIBILITY.
haftmann@67525
   292
blanchet@66661
   293
* SMT module:
wenzelm@68393
   294
blanchet@66661
   295
  - The 'smt_oracle' option is now necessary when using the 'smt' method
blanchet@66662
   296
    with a solver other than Z3. INCOMPATIBILITY.
wenzelm@68393
   297
wenzelm@66844
   298
  - The encoding to first-order logic is now more complete in the
wenzelm@66844
   299
    presence of higher-order quantifiers. An 'smt_explicit_application'
wenzelm@66844
   300
    option has been added to control this. INCOMPATIBILITY.
wenzelm@66844
   301
haftmann@66804
   302
* Facts sum.commute(_restrict) and prod.commute(_restrict) renamed to
wenzelm@66844
   303
sum.swap(_restrict) and prod.swap(_restrict), to avoid name clashes on
wenzelm@66844
   304
interpretation of abstract locales. INCOMPATIBILITY.
haftmann@66804
   305
wenzelm@68393
   306
* Predicate coprime is now a real definition, not a mere abbreviation.
wenzelm@68393
   307
INCOMPATIBILITY.
wenzelm@68393
   308
haftmann@66803
   309
* Predicate pairwise_coprime abolished, use "pairwise coprime" instead.
haftmann@66803
   310
INCOMPATIBILITY.
haftmann@66803
   311
lp15@68373
   312
* The relator rel_filter on filters has been strengthened to its
wenzelm@68393
   313
canonical categorical definition with better properties.
wenzelm@68393
   314
INCOMPATIBILITY.
Andreas@67616
   315
immler@68072
   316
* Generalized linear algebra involving linear, span, dependent, dim
immler@68072
   317
from type class real_vector to locales module and vector_space.
immler@68072
   318
Renamed:
wenzelm@68393
   319
wenzelm@68393
   320
  span_inc ~> span_superset
wenzelm@68393
   321
  span_superset ~> span_base
wenzelm@68393
   322
  span_eq ~> span_eq_iff
wenzelm@68393
   323
wenzelm@68393
   324
INCOMPATIBILITY.
wenzelm@66844
   325
haftmann@66937
   326
* Class linordered_semiring_1 covers zero_less_one also, ruling out
haftmann@66937
   327
pathologic instances. Minor INCOMPATIBILITY.
haftmann@66937
   328
wenzelm@68393
   329
* Theory HOL.List: functions "sorted_wrt" and "sorted" now compare every
wenzelm@68393
   330
element in a list to all following elements, not just the next one.
wenzelm@68393
   331
wenzelm@68393
   332
* Theory HOL.List syntax:
wenzelm@68393
   333
wenzelm@68393
   334
  - filter-syntax "[x <- xs. P]" is no longer output syntax, but only
wenzelm@68393
   335
    input syntax
wenzelm@68393
   336
wenzelm@68393
   337
  - list comprehension syntax now supports tuple patterns in "pat <- xs"
nipkow@68249
   338
nipkow@68450
   339
* Theory Map: "empty" must now be qualified as "Map.empty".
nipkow@68450
   340
haftmann@67051
   341
* Removed nat-int transfer machinery. Rare INCOMPATIBILITY.
haftmann@67051
   342
haftmann@68100
   343
* Fact mod_mult_self4 (on nat) renamed to Suc_mod_mult_self3, to avoid
haftmann@68100
   344
clash with fact mod_mult_self4 (on more generic semirings).
haftmann@68100
   345
INCOMPATIBILITY.
haftmann@68100
   346
haftmann@68100
   347
* Eliminated some theorem aliasses:
haftmann@68100
   348
  even_times_iff ~> even_mult_iff
haftmann@68100
   349
  mod_2_not_eq_zero_eq_one_nat ~> not_mod_2_eq_0_eq_1
haftmann@68100
   350
  even_of_nat ~> even_int_iff
haftmann@68100
   351
haftmann@68100
   352
INCOMPATIBILITY.
haftmann@68100
   353
haftmann@68157
   354
* Eliminated some theorem duplicate variations:
wenzelm@68393
   355
wenzelm@68393
   356
  - dvd_eq_mod_eq_0_numeral can be replaced by dvd_eq_mod_eq_0
wenzelm@68393
   357
  - mod_Suc_eq_Suc_mod can be replaced by mod_Suc
wenzelm@68393
   358
  - mod_Suc_eq_Suc_mod [symmetrict] can be replaced by mod_simps
wenzelm@68393
   359
  - mod_eq_0_iff can be replaced by mod_eq_0_iff_dvd and dvd_def
wenzelm@68393
   360
  - the witness of mod_eqD can be given directly as "_ div _"
haftmann@68157
   361
haftmann@68157
   362
INCOMPATIBILITY.
haftmann@68157
   363
haftmann@68260
   364
* Classical setup: Assumption "m mod d = 0" (for m d :: nat) is no
wenzelm@68393
   365
longer aggresively destroyed to "\<exists>q. m = d * q". INCOMPATIBILITY, adding
wenzelm@68393
   366
"elim!: dvd" to classical proof methods in most situations restores
wenzelm@68393
   367
broken proofs.
wenzelm@68393
   368
wenzelm@68393
   369
* Theory HOL-Library.Conditional_Parametricity provides command
wenzelm@68393
   370
'parametric_constant' for proving parametricity of non-recursive
wenzelm@68393
   371
definitions. For constants that are not fully parametric the command
wenzelm@68393
   372
will infer conditions on relations (e.g., bi_unique, bi_total, or type
wenzelm@68393
   373
class conditions such as "respects 0") sufficient for parametricity. See
wenzelm@68393
   374
theory HOL-ex.Conditional_Parametricity_Examples for some examples.
wenzelm@68393
   375
wenzelm@68393
   376
* Theory HOL-Library.Code_Lazy provides a new preprocessor for the code
wenzelm@68393
   377
generator to generate code for algebraic types with lazy evaluation
wenzelm@68393
   378
semantics even in call-by-value target languages. See theory
wenzelm@68393
   379
HOL-Codegenerator_Test.Code_Lazy_Test for some examples.
wenzelm@68393
   380
wenzelm@68393
   381
* Theory HOL-Library.Landau_Symbols has been moved here from AFP.
wenzelm@68393
   382
wenzelm@68393
   383
* Theory HOL-Library.Old_Datatype no longer provides the legacy command
wenzelm@68393
   384
'old_datatype'. INCOMPATIBILITY.
wenzelm@68393
   385
wenzelm@68393
   386
* Theory HOL-Computational_Algebra.Polynomial_Factorial does not provide
wenzelm@68393
   387
instances of rat, real, complex as factorial rings etc. Import
wenzelm@68393
   388
HOL-Computational_Algebra.Field_as_Ring explicitly in case of need.
wenzelm@68393
   389
INCOMPATIBILITY.
wenzelm@68393
   390
wenzelm@68393
   391
* Session HOL-Algebra: renamed (^) to [^] to avoid conflict with new
wenzelm@68393
   392
infix/prefix notation.
wenzelm@68393
   393
lp15@68466
   394
* Session HOL-Algebra: Revamped with much new material.
lp15@68466
   395
The set of isomorphisms between two groups is now denoted iso rather than iso_set.
lp15@68466
   396
INCOMPATIBILITY.
lp15@68466
   397
lp15@68499
   398
* Session HOL-Analysis: the Arg function now respects the same interval as
lp15@68499
   399
Ln, namely (-pi,pi]; the old Arg function has been renamed Arg2pi. 
lp15@68499
   400
INCOMPATIBILITY.
lp15@68499
   401
wenzelm@68393
   402
* Session HOL-Analysis: infinite products, Moebius functions, the
wenzelm@68393
   403
Riemann mapping theorem, the Vitali covering theorem,
wenzelm@68393
   404
change-of-variables results for integration and measures.
haftmann@68260
   405
immler@68522
   406
* Session HOL-Types_To_Sets: more tool support
immler@68522
   407
(unoverload_type combines internalize_sorts and unoverload) and larger
immler@68522
   408
experimental application (type based linear algebra transferred to linear
immler@68522
   409
algebra on subspaces).
immler@68522
   410
wenzelm@66651
   411
wenzelm@68116
   412
*** ML ***
wenzelm@68116
   413
wenzelm@68116
   414
* Operation Export.export emits theory exports (arbitrary blobs), which
wenzelm@68116
   415
are stored persistently in the session build database.
wenzelm@68116
   416
wenzelm@68276
   417
* Command 'ML_export' exports ML toplevel bindings to the global
wenzelm@68276
   418
bootstrap environment of the ML process. This allows ML evaluation
wenzelm@68276
   419
without a formal theory context, e.g. in command-line tools like
wenzelm@68276
   420
"isabelle process".
wenzelm@68276
   421
wenzelm@68116
   422
wenzelm@66729
   423
*** System ***
wenzelm@66729
   424
wenzelm@67088
   425
* Mac OS X 10.10 Yosemite is now the baseline version; Mavericks is no
wenzelm@67088
   426
longer supported.
wenzelm@67088
   427
wenzelm@68393
   428
* Linux and Windows/Cygwin is for x86_64 only, old 32bit platform
wenzelm@68393
   429
support has been discontinued.
wenzelm@68393
   430
wenzelm@66906
   431
* Java runtime is for x86_64 only. Corresponding Isabelle settings have
wenzelm@66906
   432
been renamed to ISABELLE_TOOL_JAVA_OPTIONS and JEDIT_JAVA_OPTIONS,
wenzelm@66906
   433
instead of former 32/64 variants. INCOMPATIBILITY.
wenzelm@66906
   434
wenzelm@68003
   435
* Old settings ISABELLE_PLATFORM and ISABELLE_WINDOWS_PLATFORM should be
wenzelm@68003
   436
phased out due to unclear preference of 32bit vs. 64bit architecture.
wenzelm@68003
   437
Explicit GNU bash expressions are now preferred, for example (with
wenzelm@68003
   438
quotes):
wenzelm@68003
   439
wenzelm@68003
   440
  #Posix executables (Unix or Cygwin), with preference for 64bit
wenzelm@68003
   441
  "${ISABELLE_PLATFORM64:-$ISABELLE_PLATFORM32}"
wenzelm@68003
   442
wenzelm@68003
   443
  #native Windows or Unix executables, with preference for 64bit
wenzelm@68003
   444
  "${ISABELLE_WINDOWS_PLATFORM64:-${ISABELLE_WINDOWS_PLATFORM32:-${ISABELLE_PLATFORM64:-$ISABELLE_PLATFORM32}}}"
wenzelm@68003
   445
wenzelm@68003
   446
  #native Windows (32bit) or Unix executables (preference for 64bit)
wenzelm@68003
   447
  "${ISABELLE_WINDOWS_PLATFORM32:-${ISABELLE_PLATFORM64:-$ISABELLE_PLATFORM32}}"
wenzelm@68003
   448
wenzelm@66745
   449
* Command-line tool "isabelle build" supports new options:
wenzelm@66745
   450
  - option -B NAME: include session NAME and all descendants
wenzelm@66745
   451
  - option -S: only observe changes of sources, not heap images
wenzelm@66841
   452
  - option -f: forces a fresh build
wenzelm@66737
   453
wenzelm@66843
   454
* Command-line tool "isabelle build" takes "condition" options with the
wenzelm@66843
   455
corresponding environment values into account, when determining the
wenzelm@66843
   456
up-to-date status of a session.
wenzelm@66843
   457
wenzelm@68393
   458
* The command-line tool "dump" dumps information from the cumulative
wenzelm@68393
   459
PIDE session database: many sessions may be loaded into a given logic
wenzelm@68393
   460
image, results from all loaded theories are written to the output
wenzelm@68393
   461
directory.
wenzelm@68393
   462
wenzelm@66851
   463
* Command-line tool "isabelle imports -I" also reports actual session
wenzelm@66851
   464
imports. This helps to minimize the session dependency graph.
wenzelm@66851
   465
wenzelm@68393
   466
* The command-line tool "export" and 'export_files' in session ROOT
wenzelm@68393
   467
entries retrieve theory exports from the session build database.
wenzelm@68393
   468
wenzelm@68393
   469
* The command-line tools "isabelle server" and "isabelle client" provide
wenzelm@68393
   470
access to the Isabelle Server: it supports responsive session management
wenzelm@68393
   471
and concurrent use of theories, based on Isabelle/PIDE infrastructure.
wenzelm@68393
   472
See also the "system" manual.
wenzelm@68393
   473
wenzelm@68393
   474
* The command-line tool "isabelle update_comments" normalizes formal
wenzelm@68393
   475
comments in outer syntax as follows: \<comment> \<open>text\<close> (whith a single space to
wenzelm@68393
   476
approximate the appearance in document output). This is more specific
wenzelm@68393
   477
than former "isabelle update_cartouches -c": the latter tool option has
wenzelm@68393
   478
been discontinued.
wenzelm@68393
   479
wenzelm@68393
   480
* The command-line tool "isabelle mkroot" now always produces a document
wenzelm@68393
   481
outline: its options have been adapted accordingly. INCOMPATIBILITY.
wenzelm@68393
   482
wenzelm@68393
   483
* The command-line tool "isabelle mkroot -I" initializes a Mercurial
wenzelm@68393
   484
repository for the generated session files.
wenzelm@68393
   485
wenzelm@68523
   486
* Settings ISABELLE_HEAPS + ISABELLE_BROWSER_INFO (or
wenzelm@68523
   487
ISABELLE_HEAPS_SYSTEM + ISABELLE_BROWSER_INFO_SYSTEM in "system build
wenzelm@68523
   488
mode") determine the directory locations of the main build artefacts --
wenzelm@68523
   489
instead of hard-wired directories in ISABELLE_HOME_USER (or
wenzelm@68523
   490
ISABELLE_HOME).
wenzelm@68523
   491
wenzelm@68393
   492
* Settings ISABELLE_PATH and ISABELLE_OUTPUT have been discontinued:
wenzelm@68393
   493
heap images and session databases are always stored in
wenzelm@68523
   494
$ISABELLE_HEAPS/$ML_IDENTIFIER (command-line default) or
wenzelm@68523
   495
$ISABELLE_HEAPS_SYSTEM/$ML_IDENTIFIER (main Isabelle application or
wenzelm@68393
   496
"isabelle jedit -s" or "isabelle build -s").
wenzelm@67099
   497
wenzelm@67199
   498
* ISABELLE_LATEX and ISABELLE_PDFLATEX now include platform-specific
wenzelm@67199
   499
options for improved error reporting. Potential INCOMPATIBILITY with
wenzelm@67199
   500
unusual LaTeX installations, may have to adapt these settings.
wenzelm@67199
   501
wenzelm@68393
   502
* Update to Poly/ML 5.7.1 with slightly improved performance and PIDE
wenzelm@68393
   503
markup for identifier bindings. It now uses The GNU Multiple Precision
wenzelm@67591
   504
Arithmetic Library (libgmp) on all platforms, notably Mac OS X with
wenzelm@67591
   505
32/64 bit.
wenzelm@67591
   506
wenzelm@67099
   507
wenzelm@66729
   508
wenzelm@66472
   509
New in Isabelle2017 (October 2017)
wenzelm@66472
   510
----------------------------------
wenzelm@64439
   511
wenzelm@64986
   512
*** General ***
wenzelm@64986
   513
wenzelm@66238
   514
* Experimental support for Visual Studio Code (VSCode) as alternative
wenzelm@66238
   515
Isabelle/PIDE front-end, see also
wenzelm@66599
   516
https://marketplace.visualstudio.com/items?itemName=makarius.Isabelle2017
wenzelm@66238
   517
wenzelm@66238
   518
VSCode is a new type of application that continues the concepts of
wenzelm@66238
   519
"programmer's editor" and "integrated development environment" towards
wenzelm@66238
   520
fully semantic editing and debugging -- in a relatively light-weight
wenzelm@66238
   521
manner. Thus it fits nicely on top of the Isabelle/PIDE infrastructure.
wenzelm@66238
   522
Technically, VSCode is based on the Electron application framework
wenzelm@66238
   523
(Node.js + Chromium browser + V8), which is implemented in JavaScript
wenzelm@66238
   524
and TypeScript, while Isabelle/VSCode mainly consists of Isabelle/Scala
wenzelm@66238
   525
modules around a Language Server implementation.
wenzelm@66238
   526
wenzelm@65504
   527
* Theory names are qualified by the session name that they belong to.
wenzelm@66454
   528
This affects imports, but not the theory name space prefix (which is
wenzelm@66454
   529
just the theory base name as before).
wenzelm@66454
   530
wenzelm@66454
   531
In order to import theories from other sessions, the ROOT file format
wenzelm@66454
   532
provides a new 'sessions' keyword. In contrast, a theory that is
wenzelm@66454
   533
imported in the old-fashioned manner via an explicit file-system path
wenzelm@66472
   534
belongs to the current session, and might cause theory name conflicts
wenzelm@66454
   535
later on. Theories that are imported from other sessions are excluded
wenzelm@66454
   536
from the current session document. The command-line tool "isabelle
wenzelm@66454
   537
imports" helps to update theory imports.
wenzelm@66454
   538
wenzelm@65451
   539
* The main theory entry points for some non-HOL sessions have changed,
wenzelm@65451
   540
to avoid confusion with the global name "Main" of the session HOL. This
wenzelm@65451
   541
leads to the follow renamings:
wenzelm@65451
   542
wenzelm@65451
   543
  CTT/Main.thy    ~>  CTT/CTT.thy
wenzelm@65451
   544
  ZF/Main.thy     ~>  ZF/ZF.thy
wenzelm@65451
   545
  ZF/Main_ZF.thy  ~>  ZF/ZF.thy
wenzelm@65451
   546
  ZF/Main_ZFC.thy ~>  ZF/ZFC.thy
wenzelm@65451
   547
  ZF/ZF.thy       ~>  ZF/ZF_Base.thy
wenzelm@65451
   548
wenzelm@65451
   549
INCOMPATIBILITY.
wenzelm@65451
   550
wenzelm@66472
   551
* Commands 'alias' and 'type_alias' introduce aliases for constants and
wenzelm@66472
   552
type constructors, respectively. This allows adhoc changes to name-space
wenzelm@66472
   553
accesses within global or local theory contexts, e.g. within a 'bundle'.
wenzelm@66472
   554
wenzelm@64986
   555
* Document antiquotations @{prf} and @{full_prf} output proof terms
wenzelm@64986
   556
(again) in the same way as commands 'prf' and 'full_prf'.
wenzelm@64986
   557
wenzelm@65055
   558
* Computations generated by the code generator can be embedded directly
wenzelm@65055
   559
into ML, alongside with @{code} antiquotations, using the following
wenzelm@65055
   560
antiquotations:
wenzelm@65055
   561
wenzelm@65055
   562
  @{computation ... terms: ... datatypes: ...} :
wenzelm@65055
   563
    ((term -> term) -> 'ml option -> 'a) -> Proof.context -> term -> 'a
wenzelm@65055
   564
  @{computation_conv ... terms: ... datatypes: ...} :
wenzelm@65055
   565
    (Proof.context -> 'ml -> conv) -> Proof.context -> conv
wenzelm@65045
   566
  @{computation_check terms: ... datatypes: ...} : Proof.context -> conv
haftmann@65041
   567
wenzelm@65055
   568
See src/HOL/ex/Computations.thy,
wenzelm@65055
   569
src/HOL/Decision_Procs/Commutative_Ring.thy and
wenzelm@65055
   570
src/HOL/Decision_Procs/Reflective_Field.thy for examples and the
wenzelm@65055
   571
tutorial on code generation.
haftmann@65041
   572
wenzelm@64986
   573
wenzelm@64602
   574
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@64602
   575
wenzelm@66472
   576
* Session-qualified theory imports allow the Prover IDE to process
wenzelm@66472
   577
arbitrary theory hierarchies independently of the underlying logic
wenzelm@66472
   578
session image (e.g. option "isabelle jedit -l"), but the directory
wenzelm@66472
   579
structure needs to be known in advance (e.g. option "isabelle jedit -d"
wenzelm@66472
   580
or a line in the file $ISABELLE_HOME_USER/ROOTS).
wenzelm@64602
   581
wenzelm@64842
   582
* The PIDE document model maintains file content independently of the
wenzelm@64842
   583
status of jEdit editor buffers. Reloading jEdit buffers no longer causes
wenzelm@64842
   584
changes of formal document content. Theory dependencies are always
wenzelm@64842
   585
resolved internally, without the need for corresponding editor buffers.
wenzelm@64842
   586
The system option "jedit_auto_load" has been discontinued: it is
wenzelm@64842
   587
effectively always enabled.
wenzelm@64842
   588
wenzelm@64867
   589
* The Theories dockable provides a "Purge" button, in order to restrict
wenzelm@64867
   590
the document model to theories that are required for open editor
wenzelm@64867
   591
buffers.
wenzelm@64867
   592
wenzelm@66424
   593
* The Theories dockable indicates the overall status of checking of each
wenzelm@66424
   594
entry. When all forked tasks of a theory are finished, the border is
wenzelm@66424
   595
painted with thick lines; remaining errors in this situation are
wenzelm@66424
   596
represented by a different border color.
wenzelm@66424
   597
wenzelm@66472
   598
* Automatic indentation is more careful to avoid redundant spaces in
wenzelm@66472
   599
intermediate situations. Keywords are indented after input (via typed
wenzelm@66472
   600
characters or completion); see also option "jedit_indent_input".
wenzelm@66472
   601
wenzelm@66472
   602
* Action "isabelle.preview" opens an HTML preview of the current theory
wenzelm@66472
   603
document in the default web browser.
wenzelm@66472
   604
wenzelm@66574
   605
* Command-line invocation "isabelle jedit -R -l LOGIC" opens the ROOT
wenzelm@66574
   606
entry of the specified logic session in the editor, while its parent is
wenzelm@66574
   607
used for formal checking.
wenzelm@66472
   608
wenzelm@66462
   609
* The main Isabelle/jEdit plugin may be restarted manually (using the
wenzelm@66462
   610
jEdit Plugin Manager), as long as the "Isabelle Base" plugin remains
wenzelm@66462
   611
enabled at all times.
wenzelm@66462
   612
wenzelm@66472
   613
* Update to current jedit-5.4.0.
wenzelm@65329
   614
wenzelm@64602
   615
haftmann@66149
   616
*** Pure ***
haftmann@66149
   617
haftmann@66149
   618
* Deleting the last code equations for a particular function using
haftmann@66149
   619
[code del] results in function with no equations (runtime abort) rather
wenzelm@66472
   620
than an unimplemented function (generation time abort). Use explicit
haftmann@66665
   621
[[code drop:]] to enforce the latter. Minor INCOMPATIBILITY.
haftmann@66149
   622
haftmann@66310
   623
* Proper concept of code declarations in code.ML:
wenzelm@66472
   624
  - Regular code declarations act only on the global theory level, being
wenzelm@66472
   625
    ignored with warnings if syntactically malformed.
wenzelm@66472
   626
  - Explicitly global code declarations yield errors if syntactically
wenzelm@66472
   627
    malformed.
wenzelm@66472
   628
  - Default code declarations are silently ignored if syntactically
wenzelm@66472
   629
    malformed.
haftmann@66310
   630
Minor INCOMPATIBILITY.
haftmann@66310
   631
wenzelm@66472
   632
* Clarified and standardized internal data bookkeeping of code
wenzelm@66472
   633
declarations: history of serials allows to track potentially
wenzelm@66472
   634
non-monotonous declarations appropriately. Minor INCOMPATIBILITY.
haftmann@66310
   635
haftmann@66149
   636
haftmann@64593
   637
*** HOL ***
haftmann@64593
   638
blanchet@66614
   639
* The Nunchaku model finder is now part of "Main".
blanchet@66614
   640
wenzelm@66472
   641
* SMT module:
wenzelm@66472
   642
  - A new option, 'smt_nat_as_int', has been added to translate 'nat' to
wenzelm@66472
   643
    'int' and benefit from the SMT solver's theory reasoning. It is
wenzelm@66472
   644
    disabled by default.
wenzelm@66472
   645
  - The legacy module "src/HOL/Library/Old_SMT.thy" has been removed.
wenzelm@66472
   646
  - Several small issues have been rectified in the 'smt' command.
wenzelm@66472
   647
wenzelm@66472
   648
* (Co)datatype package: The 'size_gen_o_map' lemma is no longer
wenzelm@66472
   649
generated for datatypes with type class annotations. As a result, the
wenzelm@66472
   650
tactic that derives it no longer fails on nested datatypes. Slight
wenzelm@66472
   651
INCOMPATIBILITY.
eberlm@66450
   652
haftmann@66345
   653
* Command and antiquotation "value" with modified default strategy:
haftmann@66345
   654
terms without free variables are always evaluated using plain evaluation
wenzelm@66472
   655
only, with no fallback on normalization by evaluation. Minor
wenzelm@66472
   656
INCOMPATIBILITY.
eberlm@65956
   657
wenzelm@65552
   658
* Theories "GCD" and "Binomial" are already included in "Main" (instead
wenzelm@65575
   659
of "Complex_Main").
wenzelm@65552
   660
haftmann@65170
   661
* Constant "surj" is a full input/output abbreviation (again).
haftmann@65170
   662
Minor INCOMPATIBILITY.
haftmann@65170
   663
haftmann@64632
   664
* Dropped aliasses RangeP, DomainP for Rangep, Domainp respectively.
haftmann@64632
   665
INCOMPATIBILITY.
haftmann@64632
   666
wenzelm@66472
   667
* Renamed ii to imaginary_unit in order to free up ii as a variable
wenzelm@66472
   668
name. The syntax \<i> remains available. INCOMPATIBILITY.
wenzelm@66472
   669
wenzelm@66472
   670
* Dropped abbreviations transP, antisymP, single_valuedP; use constants
wenzelm@66472
   671
transp, antisymp, single_valuedp instead. INCOMPATIBILITY.
wenzelm@66472
   672
wenzelm@66472
   673
* Constant "subseq" in Topological_Spaces has been removed -- it is
wenzelm@66472
   674
subsumed by "strict_mono". Some basic lemmas specific to "subseq" have
wenzelm@66472
   675
been renamed accordingly, e.g. "subseq_o" -> "strict_mono_o" etc.
wenzelm@66472
   676
wenzelm@66472
   677
* Theory List: "sublist" renamed to "nths" in analogy with "nth", and
wenzelm@66472
   678
"sublisteq" renamed to "subseq". Minor INCOMPATIBILITY.
wenzelm@66472
   679
wenzelm@66472
   680
* Theory List: new generic function "sorted_wrt".
wenzelm@66472
   681
wenzelm@66472
   682
* Named theorems mod_simps covers various congruence rules concerning
wenzelm@66472
   683
mod, replacing former zmod_simps. INCOMPATIBILITY.
haftmann@64787
   684
haftmann@64593
   685
* Swapped orientation of congruence rules mod_add_left_eq,
haftmann@64593
   686
mod_add_right_eq, mod_add_eq, mod_mult_left_eq, mod_mult_right_eq,
haftmann@64593
   687
mod_mult_eq, mod_minus_eq, mod_diff_left_eq, mod_diff_right_eq,
wenzelm@66472
   688
mod_diff_eq. INCOMPATIBILITY.
haftmann@64593
   689
haftmann@64593
   690
* Generalized some facts:
blanchet@64876
   691
    measure_induct_rule
blanchet@64876
   692
    measure_induct
haftmann@64593
   693
    zminus_zmod ~> mod_minus_eq
haftmann@64593
   694
    zdiff_zmod_left ~> mod_diff_left_eq
haftmann@64593
   695
    zdiff_zmod_right ~> mod_diff_right_eq
haftmann@64593
   696
    zmod_eq_dvd_iff ~> mod_eq_dvd_iff
haftmann@64593
   697
INCOMPATIBILITY.
haftmann@64593
   698
wenzelm@66472
   699
* Algebraic type class hierarchy of euclidean (semi)rings in HOL:
wenzelm@66472
   700
euclidean_(semi)ring, euclidean_(semi)ring_cancel,
wenzelm@66472
   701
unique_euclidean_(semi)ring; instantiation requires provision of a
wenzelm@66472
   702
euclidean size.
wenzelm@66472
   703
wenzelm@66472
   704
* Theory "HOL-Number_Theory.Euclidean_Algorithm" has been reworked:
wenzelm@66472
   705
  - Euclidean induction is available as rule eucl_induct.
wenzelm@66472
   706
  - Constants Euclidean_Algorithm.gcd, Euclidean_Algorithm.lcm,
wenzelm@66472
   707
    Euclidean_Algorithm.Gcd and Euclidean_Algorithm.Lcm allow
wenzelm@66472
   708
    easy instantiation of euclidean (semi)rings as GCD (semi)rings.
wenzelm@66472
   709
  - Coefficients obtained by extended euclidean algorithm are
wenzelm@66472
   710
    available as "bezout_coefficients".
wenzelm@66472
   711
INCOMPATIBILITY.
wenzelm@66472
   712
wenzelm@66472
   713
* Theory "Number_Theory.Totient" introduces basic notions about Euler's
wenzelm@66472
   714
totient function previously hidden as solitary example in theory
wenzelm@66472
   715
Residues. Definition changed so that "totient 1 = 1" in agreement with
wenzelm@66472
   716
the literature. Minor INCOMPATIBILITY.
wenzelm@66472
   717
wenzelm@66542
   718
* New styles in theory "HOL-Library.LaTeXsugar":
nipkow@66541
   719
  - "dummy_pats" for printing equations with "_" on the lhs;
nipkow@66541
   720
  - "eta_expand" for printing eta-expanded terms.
nipkow@66541
   721
wenzelm@66472
   722
* Theory "HOL-Library.Permutations": theorem bij_swap_ompose_bij has
wenzelm@66472
   723
been renamed to bij_swap_compose_bij. INCOMPATIBILITY.
wenzelm@66472
   724
lp15@66643
   725
* New theory "HOL-Library.Going_To_Filter" providing the "f going_to F"
eberlm@66488
   726
filter for describing points x such that f(x) is in the filter F.
eberlm@66488
   727
eberlm@66480
   728
* Theory "HOL-Library.Formal_Power_Series": constants X/E/L/F have been
eberlm@66480
   729
renamed to fps_X/fps_exp/fps_ln/fps_hypergeo to avoid polluting the name
wenzelm@66472
   730
space. INCOMPATIBILITY.
wenzelm@66472
   731
wenzelm@66472
   732
* Theory "HOL-Library.FinFun" has been moved to AFP (again).
wenzelm@66472
   733
INCOMPATIBILITY.
wenzelm@66472
   734
wenzelm@66472
   735
* Theory "HOL-Library.FuncSet": some old and rarely used ASCII
wenzelm@66472
   736
replacement syntax has been removed. INCOMPATIBILITY, standard syntax
wenzelm@66472
   737
with symbols should be used instead. The subsequent commands help to
wenzelm@66472
   738
reproduce the old forms, e.g. to simplify porting old theories:
wenzelm@66472
   739
wenzelm@66472
   740
syntax (ASCII)
wenzelm@66472
   741
  "_PiE" :: "pttrn \<Rightarrow> 'a set \<Rightarrow> 'b set \<Rightarrow> ('a \<Rightarrow> 'b) set"  ("(3PIE _:_./ _)" 10)
wenzelm@66472
   742
  "_Pi"  :: "pttrn \<Rightarrow> 'a set \<Rightarrow> 'b set \<Rightarrow> ('a \<Rightarrow> 'b) set"  ("(3PI _:_./ _)" 10)
wenzelm@66472
   743
  "_lam" :: "pttrn \<Rightarrow> 'a set \<Rightarrow> 'a \<Rightarrow> 'b \<Rightarrow> ('a \<Rightarrow> 'b)"  ("(3%_:_./ _)" [0,0,3] 3)
wenzelm@66472
   744
wenzelm@66472
   745
* Theory "HOL-Library.Multiset": the simprocs on subsets operators of
wenzelm@66472
   746
multisets have been renamed:
wenzelm@66472
   747
wenzelm@66472
   748
  msetless_cancel_numerals ~> msetsubset_cancel
wenzelm@66472
   749
  msetle_cancel_numerals ~> msetsubset_eq_cancel
wenzelm@66472
   750
wenzelm@66472
   751
INCOMPATIBILITY.
wenzelm@66472
   752
lars@66481
   753
* Theory "HOL-Library.Pattern_Aliases" provides input and output syntax
lars@66481
   754
for pattern aliases as known from Haskell, Scala and ML.
blanchet@65515
   755
Andreas@66563
   756
* Theory "HOL-Library.Uprod" formalizes the type of unordered pairs.
Andreas@66563
   757
wenzelm@64898
   758
* Session HOL-Analysis: more material involving arcs, paths, covering
wenzelm@66650
   759
spaces, innessential maps, retracts, infinite products, simplicial
wenzelm@66650
   760
complexes. Baire Category theorem. Major results include the Jordan
wenzelm@66650
   761
Curve Theorem and the Great Picard Theorem.
wenzelm@66472
   762
wenzelm@66472
   763
* Session HOL-Algebra has been extended by additional lattice theory:
wenzelm@66472
   764
the Knaster-Tarski fixed point theorem and Galois Connections.
wenzelm@66472
   765
wenzelm@66472
   766
* Sessions HOL-Computational_Algebra and HOL-Number_Theory: new notions
wenzelm@66472
   767
of squarefreeness, n-th powers, and prime powers.
wenzelm@66472
   768
wenzelm@66472
   769
* Session "HOL-Computional_Algebra" covers many previously scattered
wenzelm@66472
   770
theories, notably Euclidean_Algorithm, Factorial_Ring,
wenzelm@66472
   771
Formal_Power_Series, Fraction_Field, Fundamental_Theorem_Algebra,
wenzelm@66472
   772
Normalized_Fraction, Polynomial_FPS, Polynomial, Primes. Minor
wenzelm@66472
   773
INCOMPATIBILITY.
Mathias@65027
   774
wenzelm@60331
   775
wenzelm@64844
   776
*** System ***
wenzelm@64844
   777
wenzelm@66474
   778
* Isabelle/Scala: the SQL module supports access to relational
wenzelm@66474
   779
databases, either as plain file (SQLite) or full-scale server
wenzelm@66474
   780
(PostgreSQL via local port or remote ssh connection).
wenzelm@66474
   781
wenzelm@66474
   782
* Results of "isabelle build" are recorded as SQLite database (i.e.
wenzelm@66474
   783
"Application File Format" in the sense of
wenzelm@66474
   784
https://www.sqlite.org/appfileformat.html). This allows systematic
wenzelm@66474
   785
access via operations from module Sessions.Store in Isabelle/Scala.
wenzelm@66474
   786
wenzelm@66472
   787
* System option "parallel_proofs" is 1 by default (instead of more
wenzelm@66472
   788
aggressive 2). This requires less heap space and avoids burning parallel
wenzelm@66472
   789
CPU cycles, while full subproof parallelization is enabled for repeated
wenzelm@66472
   790
builds (according to parallel_subproofs_threshold).
wenzelm@65072
   791
wenzelm@65448
   792
* System option "record_proofs" allows to change the global
wenzelm@65448
   793
Proofterm.proofs variable for a session. Regular values are are 0, 1, 2;
wenzelm@65448
   794
a negative value means the current state in the ML heap image remains
wenzelm@65448
   795
unchanged.
wenzelm@65448
   796
wenzelm@66472
   797
* Isabelle settings variable ISABELLE_SCALA_BUILD_OPTIONS has been
wenzelm@66472
   798
renamed to ISABELLE_SCALAC_OPTIONS. Rare INCOMPATIBILITY.
wenzelm@66472
   799
wenzelm@66472
   800
* Isabelle settings variables ISABELLE_WINDOWS_PLATFORM,
wenzelm@66472
   801
ISABELLE_WINDOWS_PLATFORM32, ISABELLE_WINDOWS_PLATFORM64 indicate the
wenzelm@66472
   802
native Windows platform (independently of the Cygwin installation). This
wenzelm@66472
   803
is analogous to ISABELLE_PLATFORM, ISABELLE_PLATFORM32,
wenzelm@66472
   804
ISABELLE_PLATFORM64.
wenzelm@65557
   805
wenzelm@66786
   806
* Command-line tool "isabelle build_docker" builds a Docker image from
wenzelm@66786
   807
the Isabelle application bundle for Linux. See also
wenzelm@66786
   808
https://hub.docker.com/r/makarius/isabelle
wenzelm@66786
   809
wenzelm@66473
   810
* Command-line tool "isabelle vscode_server" provides a Language Server
wenzelm@66473
   811
Protocol implementation, e.g. for the Visual Studio Code editor. It
wenzelm@66473
   812
serves as example for alternative PIDE front-ends.
wenzelm@66473
   813
wenzelm@66472
   814
* Command-line tool "isabelle imports" helps to maintain theory imports
wenzelm@66671
   815
wrt. session structure. Examples for the main Isabelle distribution:
wenzelm@66472
   816
wenzelm@66472
   817
  isabelle imports -I -a
wenzelm@66472
   818
  isabelle imports -U -a
wenzelm@66472
   819
  isabelle imports -U -i -a
wenzelm@66472
   820
  isabelle imports -M -a -d '~~/src/Benchmarks'
wenzelm@66472
   821
wenzelm@64844
   822
wenzelm@67099
   823
wenzelm@64072
   824
New in Isabelle2016-1 (December 2016)
wenzelm@64072
   825
-------------------------------------
wenzelm@62216
   826
wenzelm@62440
   827
*** General ***
wenzelm@62440
   828
wenzelm@64390
   829
* Splitter in proof methods "simp", "auto" and friends:
wenzelm@64390
   830
  - The syntax "split add" has been discontinued, use plain "split",
wenzelm@64390
   831
    INCOMPATIBILITY.
wenzelm@64390
   832
  - For situations with many conditional or case expressions, there is
wenzelm@64390
   833
    an alternative splitting strategy that can be much faster. It is
wenzelm@64390
   834
    selected by writing "split!" instead of "split". It applies safe
wenzelm@64390
   835
    introduction and elimination rules after each split rule. As a
wenzelm@64390
   836
    result the subgoal may be split into several subgoals.
wenzelm@64390
   837
wenzelm@63273
   838
* Command 'bundle' provides a local theory target to define a bundle
wenzelm@63273
   839
from the body of specification commands (such as 'declare',
wenzelm@63273
   840
'declaration', 'notation', 'lemmas', 'lemma'). For example:
wenzelm@63273
   841
wenzelm@63273
   842
bundle foo
wenzelm@63273
   843
begin
wenzelm@63273
   844
  declare a [simp]
wenzelm@63273
   845
  declare b [intro]
wenzelm@63273
   846
end
wenzelm@63272
   847
wenzelm@63282
   848
* Command 'unbundle' is like 'include', but works within a local theory
wenzelm@63282
   849
context. Unlike "context includes ... begin", the effect of 'unbundle'
wenzelm@63282
   850
on the target context persists, until different declarations are given.
wenzelm@63282
   851
wenzelm@63977
   852
* Simplified outer syntax: uniform category "name" includes long
wenzelm@63977
   853
identifiers. Former "xname" / "nameref" / "name reference" has been
wenzelm@63977
   854
discontinued.
wenzelm@63977
   855
wenzelm@63977
   856
* Embedded content (e.g. the inner syntax of types, terms, props) may be
wenzelm@63977
   857
delimited uniformly via cartouches. This works better than old-fashioned
wenzelm@63977
   858
quotes when sub-languages are nested.
wenzelm@63977
   859
wenzelm@63977
   860
* Mixfix annotations support general block properties, with syntax
wenzelm@63977
   861
"(\<open>x=a y=b z \<dots>\<close>". Notable property names are "indent", "consistent",
wenzelm@63977
   862
"unbreakable", "markup". The existing notation "(DIGITS" is equivalent
wenzelm@63977
   863
to "(\<open>indent=DIGITS\<close>". The former notation "(00" for unbreakable blocks
wenzelm@63977
   864
is superseded by "(\<open>unbreabable\<close>" --- rare INCOMPATIBILITY.
nipkow@63650
   865
wenzelm@63383
   866
* Proof method "blast" is more robust wrt. corner cases of Pure
wenzelm@63383
   867
statements without object-logic judgment.
wenzelm@63383
   868
wenzelm@63624
   869
* Commands 'prf' and 'full_prf' are somewhat more informative (again):
wenzelm@63977
   870
proof terms are reconstructed and cleaned from administrative thm nodes.
wenzelm@63977
   871
wenzelm@63977
   872
* Code generator: config option "code_timing" triggers measurements of
wenzelm@63977
   873
different phases of code generation. See src/HOL/ex/Code_Timing.thy for
wenzelm@63977
   874
examples.
wenzelm@63977
   875
wenzelm@63977
   876
* Code generator: implicits in Scala (stemming from type class
wenzelm@63977
   877
instances) are generated into companion object of corresponding type
wenzelm@63977
   878
class, to resolve some situations where ambiguities may occur.
wenzelm@63977
   879
wenzelm@64390
   880
* Solve direct: option "solve_direct_strict_warnings" gives explicit
wenzelm@64390
   881
warnings for lemma statements with trivial proofs.
haftmann@64013
   882
wenzelm@64602
   883
wenzelm@62904
   884
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@62904
   885
wenzelm@64527
   886
* More aggressive flushing of machine-generated input, according to
wenzelm@64527
   887
system option editor_generated_input_delay (in addition to existing
wenzelm@64527
   888
editor_input_delay for regular user edits). This may affect overall PIDE
wenzelm@64527
   889
reactivity and CPU usage.
wenzelm@64527
   890
wenzelm@64390
   891
* Syntactic indentation according to Isabelle outer syntax. Action
wenzelm@64390
   892
"indent-lines" (shortcut C+i) indents the current line according to
wenzelm@64390
   893
command keywords and some command substructure. Action
wenzelm@64390
   894
"isabelle.newline" (shortcut ENTER) indents the old and the new line
wenzelm@64390
   895
according to command keywords only; see also option
wenzelm@64390
   896
"jedit_indent_newline".
wenzelm@64390
   897
wenzelm@64390
   898
* Semantic indentation for unstructured proof scripts ('apply' etc.) via
wenzelm@64390
   899
number of subgoals. This requires information of ongoing document
wenzelm@64390
   900
processing and may thus lag behind, when the user is editing too
wenzelm@64390
   901
quickly; see also option "jedit_script_indent" and
wenzelm@64390
   902
"jedit_script_indent_limit".
wenzelm@64390
   903
wenzelm@64390
   904
* Refined folding mode "isabelle" based on Isar syntax: 'next' and 'qed'
wenzelm@64390
   905
are treated as delimiters for fold structure; 'begin' and 'end'
wenzelm@64390
   906
structure of theory specifications is treated as well.
wenzelm@64390
   907
wenzelm@64390
   908
* Command 'proof' provides information about proof outline with cases,
wenzelm@64390
   909
e.g. for proof methods "cases", "induct", "goal_cases".
wenzelm@64390
   910
wenzelm@64390
   911
* Completion templates for commands involving "begin ... end" blocks,
wenzelm@64390
   912
e.g. 'context', 'notepad'.
wenzelm@64390
   913
wenzelm@64390
   914
* Sidekick parser "isabelle-context" shows nesting of context blocks
wenzelm@64390
   915
according to 'begin' and 'end' structure.
wenzelm@64390
   916
wenzelm@63977
   917
* Highlighting of entity def/ref positions wrt. cursor.
wenzelm@63977
   918
wenzelm@63977
   919
* Action "isabelle.select-entity" (shortcut CS+ENTER) selects all
wenzelm@64514
   920
occurrences of the formal entity at the caret position. This facilitates
wenzelm@63977
   921
systematic renaming.
wenzelm@63977
   922
wenzelm@63977
   923
* PIDE document markup works across multiple Isar commands, e.g. the
wenzelm@63977
   924
results established at the end of a proof are properly identified in the
wenzelm@63977
   925
theorem statement.
wenzelm@63977
   926
wenzelm@63977
   927
* Cartouche abbreviations work both for " and ` to accomodate typical
wenzelm@63977
   928
situations where old ASCII notation may be updated.
wenzelm@63977
   929
wenzelm@63875
   930
* Dockable window "Symbols" also provides access to 'abbrevs' from the
wenzelm@63875
   931
outer syntax of the current theory buffer. This provides clickable
wenzelm@63875
   932
syntax templates, including entries with empty abbrevs name (which are
wenzelm@63875
   933
inaccessible via keyboard completion).
wenzelm@63875
   934
wenzelm@63022
   935
* IDE support for the Isabelle/Pure bootstrap process, with the
wenzelm@63022
   936
following independent stages:
wenzelm@63022
   937
wenzelm@63022
   938
  src/Pure/ROOT0.ML
wenzelm@63022
   939
  src/Pure/ROOT.ML
wenzelm@63022
   940
  src/Pure/Pure.thy
wenzelm@63022
   941
  src/Pure/ML_Bootstrap.thy
wenzelm@63022
   942
wenzelm@63022
   943
The ML ROOT files act like quasi-theories in the context of theory
wenzelm@63022
   944
ML_Bootstrap: this allows continuous checking of all loaded ML files.
wenzelm@63022
   945
The theory files are presented with a modified header to import Pure
wenzelm@63022
   946
from the running Isabelle instance. Results from changed versions of
wenzelm@63022
   947
each stage are *not* propagated to the next stage, and isolated from the
wenzelm@63022
   948
actual Isabelle/Pure that runs the IDE itself. The sequential
wenzelm@63307
   949
dependencies of the above files are only observed for batch build.
wenzelm@62904
   950
wenzelm@63977
   951
* Isabelle/ML and Standard ML files are presented in Sidekick with the
wenzelm@63977
   952
tree structure of section headings: this special comment format is
wenzelm@63977
   953
described in "implementation" chapter 0, e.g. (*** section ***).
wenzelm@63461
   954
wenzelm@63581
   955
* Additional abbreviations for syntactic completion may be specified
wenzelm@63871
   956
within the theory header as 'abbrevs'. The theory syntax for 'keywords'
wenzelm@63871
   957
has been simplified accordingly: optional abbrevs need to go into the
wenzelm@63871
   958
new 'abbrevs' section.
wenzelm@63871
   959
wenzelm@63871
   960
* Global abbreviations via $ISABELLE_HOME/etc/abbrevs and
wenzelm@63871
   961
$ISABELLE_HOME_USER/etc/abbrevs are no longer supported. Minor
wenzelm@63871
   962
INCOMPATIBILITY, use 'abbrevs' within theory header instead.
wenzelm@63579
   963
wenzelm@64390
   964
* Action "isabelle.keymap-merge" asks the user to resolve pending
wenzelm@64390
   965
Isabelle keymap changes that are in conflict with the current jEdit
wenzelm@64390
   966
keymap; non-conflicting changes are always applied implicitly. This
wenzelm@64390
   967
action is automatically invoked on Isabelle/jEdit startup and thus
wenzelm@64390
   968
increases chances that users see new keyboard shortcuts when re-using
wenzelm@64390
   969
old keymaps.
wenzelm@64390
   970
wenzelm@63675
   971
* ML and document antiquotations for file-systems paths are more uniform
wenzelm@63675
   972
and diverse:
wenzelm@63675
   973
wenzelm@63675
   974
  @{path NAME}   -- no file-system check
wenzelm@63675
   975
  @{file NAME}   -- check for plain file
wenzelm@63675
   976
  @{dir NAME}    -- check for directory
wenzelm@63675
   977
wenzelm@63675
   978
Minor INCOMPATIBILITY, former uses of @{file} and @{file_unchecked} may
wenzelm@63675
   979
have to be changed.
wenzelm@63669
   980
wenzelm@63669
   981
wenzelm@63977
   982
*** Document preparation ***
wenzelm@63977
   983
wenzelm@63977
   984
* New symbol \<circle>, e.g. for temporal operator.
wenzelm@63977
   985
wenzelm@64073
   986
* New document and ML antiquotation @{locale} for locales, similar to
wenzelm@64073
   987
existing antiquotation @{class}.
wenzelm@64073
   988
wenzelm@63977
   989
* Mixfix annotations support delimiters like \<^control>\<open>cartouche\<close> --
wenzelm@63977
   990
this allows special forms of document output.
wenzelm@63977
   991
wenzelm@63977
   992
* Raw LaTeX output now works via \<^latex>\<open>...\<close> instead of raw control
wenzelm@63977
   993
symbol \<^raw:...>. INCOMPATIBILITY, notably for LaTeXsugar.thy and its
wenzelm@63977
   994
derivatives.
wenzelm@63977
   995
wenzelm@63977
   996
* \<^raw:...> symbols are no longer supported.
wenzelm@63977
   997
wenzelm@63977
   998
* Old 'header' command is no longer supported (legacy since
wenzelm@63977
   999
Isabelle2015).
wenzelm@63977
  1000
wenzelm@63977
  1001
wenzelm@62312
  1002
*** Isar ***
wenzelm@62312
  1003
wenzelm@63180
  1004
* Many specification elements support structured statements with 'if' /
wenzelm@63180
  1005
'for' eigen-context, e.g. 'axiomatization', 'abbreviation',
wenzelm@63180
  1006
'definition', 'inductive', 'function'.
wenzelm@63180
  1007
wenzelm@63094
  1008
* Toplevel theorem statements support eigen-context notation with 'if' /
wenzelm@63284
  1009
'for' (in postfix), which corresponds to 'assumes' / 'fixes' in the
wenzelm@63094
  1010
traditional long statement form (in prefix). Local premises are called
wenzelm@63094
  1011
"that" or "assms", respectively. Empty premises are *not* bound in the
wenzelm@63094
  1012
context: INCOMPATIBILITY.
wenzelm@63094
  1013
wenzelm@63039
  1014
* Command 'define' introduces a local (non-polymorphic) definition, with
wenzelm@63039
  1015
optional abstraction over local parameters. The syntax resembles
wenzelm@63043
  1016
'definition' and 'obtain'. It fits better into the Isar language than
wenzelm@63043
  1017
old 'def', which is now a legacy feature.
wenzelm@63039
  1018
wenzelm@63059
  1019
* Command 'obtain' supports structured statements with 'if' / 'for'
wenzelm@63059
  1020
context.
wenzelm@63059
  1021
wenzelm@62312
  1022
* Command '\<proof>' is an alias for 'sorry', with different
wenzelm@62312
  1023
typesetting. E.g. to produce proof holes in examples and documentation.
wenzelm@62216
  1024
wenzelm@63977
  1025
* The defining position of a literal fact \<open>prop\<close> is maintained more
wenzelm@63977
  1026
carefully, and made accessible as hyperlink in the Prover IDE.
wenzelm@63977
  1027
wenzelm@63977
  1028
* Commands 'finally' and 'ultimately' used to expose the result as
wenzelm@63977
  1029
literal fact: this accidental behaviour has been discontinued. Rare
wenzelm@63977
  1030
INCOMPATIBILITY, use more explicit means to refer to facts in Isar.
wenzelm@63977
  1031
wenzelm@63977
  1032
* Command 'axiomatization' has become more restrictive to correspond
wenzelm@63977
  1033
better to internal axioms as singleton facts with mandatory name. Minor
wenzelm@63977
  1034
INCOMPATIBILITY.
wenzelm@62939
  1035
wenzelm@63259
  1036
* Proof methods may refer to the main facts via the dynamic fact
wenzelm@63259
  1037
"method_facts". This is particularly useful for Eisbach method
wenzelm@63259
  1038
definitions.
wenzelm@63259
  1039
wenzelm@63527
  1040
* Proof method "use" allows to modify the main facts of a given method
wenzelm@63527
  1041
expression, e.g.
wenzelm@63259
  1042
wenzelm@63259
  1043
  (use facts in simp)
wenzelm@63259
  1044
  (use facts in \<open>simp add: ...\<close>)
wenzelm@63259
  1045
wenzelm@63977
  1046
* The old proof method "default" has been removed (legacy since
wenzelm@63977
  1047
Isabelle2016). INCOMPATIBILITY, use "standard" instead.
wenzelm@63977
  1048
wenzelm@62216
  1049
haftmann@63165
  1050
*** Pure ***
haftmann@63165
  1051
wenzelm@63977
  1052
* Pure provides basic versions of proof methods "simp" and "simp_all"
wenzelm@63977
  1053
that only know about meta-equality (==). Potential INCOMPATIBILITY in
wenzelm@63977
  1054
theory imports that merge Pure with e.g. Main of Isabelle/HOL: the order
wenzelm@63977
  1055
is relevant to avoid confusion of Pure.simp vs. HOL.simp.
wenzelm@63977
  1056
wenzelm@63977
  1057
* The command 'unfolding' and proof method "unfold" include a second
wenzelm@63977
  1058
stage where given equations are passed through the attribute "abs_def"
wenzelm@63977
  1059
before rewriting. This ensures that definitions are fully expanded,
wenzelm@63977
  1060
regardless of the actual parameters that are provided. Rare
wenzelm@63977
  1061
INCOMPATIBILITY in some corner cases: use proof method (simp only:)
wenzelm@63977
  1062
instead, or declare [[unfold_abs_def = false]] in the proof context.
wenzelm@63977
  1063
wenzelm@63977
  1064
* Type-inference improves sorts of newly introduced type variables for
wenzelm@63977
  1065
the object-logic, using its base sort (i.e. HOL.type for Isabelle/HOL).
wenzelm@63977
  1066
Thus terms like "f x" or "\<And>x. P x" without any further syntactic context
wenzelm@63977
  1067
produce x::'a::type in HOL instead of x::'a::{} in Pure. Rare
wenzelm@63977
  1068
INCOMPATIBILITY, need to provide explicit type constraints for Pure
wenzelm@63977
  1069
types where this is really intended.
haftmann@63350
  1070
haftmann@63165
  1071
blanchet@62327
  1072
*** HOL ***
blanchet@62327
  1073
wenzelm@63977
  1074
* New proof method "argo" using the built-in Argo solver based on SMT
wenzelm@63977
  1075
technology. The method can be used to prove goals of quantifier-free
wenzelm@63977
  1076
propositional logic, goals based on a combination of quantifier-free
wenzelm@63977
  1077
propositional logic with equality, and goals based on a combination of
wenzelm@63977
  1078
quantifier-free propositional logic with linear real arithmetic
wenzelm@63977
  1079
including min/max/abs. See HOL/ex/Argo_Examples.thy for examples.
wenzelm@63977
  1080
blanchet@66614
  1081
* The new "nunchaku" command integrates the Nunchaku model finder. The
wenzelm@64390
  1082
tool is experimental. See ~~/src/HOL/Nunchaku/Nunchaku.thy for details.
wenzelm@64390
  1083
wenzelm@63977
  1084
* Metis: The problem encoding has changed very slightly. This might
blanchet@63785
  1085
break existing proofs. INCOMPATIBILITY.
blanchet@63785
  1086
blanchet@63116
  1087
* Sledgehammer:
lp15@63967
  1088
  - The MaSh relevance filter is now faster than before.
blanchet@63116
  1089
  - Produce syntactically correct Vampire 4.0 problem files.
blanchet@63116
  1090
blanchet@62327
  1091
* (Co)datatype package:
blanchet@62693
  1092
  - New commands for defining corecursive functions and reasoning about
blanchet@62693
  1093
    them in "~~/src/HOL/Library/BNF_Corec.thy": 'corec', 'corecursive',
blanchet@62693
  1094
    'friend_of_corec', and 'corecursion_upto'; and 'corec_unique' proof
blanchet@62842
  1095
    method. See 'isabelle doc corec'.
wenzelm@63977
  1096
  - The predicator :: ('a \<Rightarrow> bool) \<Rightarrow> 'a F \<Rightarrow> bool is now a first-class
blanchet@63855
  1097
    citizen in bounded natural functors.
blanchet@62693
  1098
  - 'primrec' now allows nested calls through the predicator in addition
blanchet@62327
  1099
    to the map function.
blanchet@63855
  1100
  - 'bnf' automatically discharges reflexive proof obligations.
blanchet@62693
  1101
  - 'bnf' outputs a slightly modified proof obligation expressing rel in
traytel@62332
  1102
       terms of map and set
blanchet@63855
  1103
       (not giving a specification for rel makes this one reflexive).
blanchet@62693
  1104
  - 'bnf' outputs a new proof obligation expressing pred in terms of set
blanchet@63855
  1105
       (not giving a specification for pred makes this one reflexive).
blanchet@63855
  1106
    INCOMPATIBILITY: manual 'bnf' declarations may need adjustment.
blanchet@62335
  1107
  - Renamed lemmas:
blanchet@62335
  1108
      rel_prod_apply ~> rel_prod_inject
blanchet@62335
  1109
      pred_prod_apply ~> pred_prod_inject
blanchet@62335
  1110
    INCOMPATIBILITY.
blanchet@62536
  1111
  - The "size" plugin has been made compatible again with locales.
blanchet@63855
  1112
  - The theorems about "rel" and "set" may have a slightly different (but
blanchet@63855
  1113
    equivalent) form.
blanchet@63855
  1114
    INCOMPATIBILITY.
blanchet@62327
  1115
wenzelm@63977
  1116
* The 'coinductive' command produces a proper coinduction rule for
wenzelm@63977
  1117
mutual coinductive predicates. This new rule replaces the old rule,
wenzelm@63977
  1118
which exposed details of the internal fixpoint construction and was
wenzelm@63977
  1119
hard to use. INCOMPATIBILITY.
wenzelm@63977
  1120
wenzelm@63977
  1121
* New abbreviations for negated existence (but not bounded existence):
wenzelm@63977
  1122
wenzelm@63977
  1123
  \<nexists>x. P x \<equiv> \<not> (\<exists>x. P x)
wenzelm@63977
  1124
  \<nexists>!x. P x \<equiv> \<not> (\<exists>!x. P x)
wenzelm@63977
  1125
wenzelm@63977
  1126
* The print mode "HOL" for ASCII syntax of binders "!", "?", "?!", "@"
wenzelm@63977
  1127
has been removed for output. It is retained for input only, until it is
wenzelm@63977
  1128
eliminated altogether.
wenzelm@63977
  1129
wenzelm@63977
  1130
* The unique existence quantifier no longer provides 'binder' syntax,
wenzelm@63977
  1131
but uses syntax translations (as for bounded unique existence). Thus
wenzelm@63977
  1132
iterated quantification \<exists>!x y. P x y with its slightly confusing
wenzelm@63977
  1133
sequential meaning \<exists>!x. \<exists>!y. P x y is no longer possible. Instead,
wenzelm@63977
  1134
pattern abstraction admits simultaneous unique existence \<exists>!(x, y). P x y
wenzelm@63977
  1135
(analogous to existing notation \<exists>!(x, y)\<in>A. P x y). Potential
wenzelm@63977
  1136
INCOMPATIBILITY in rare situations.
wenzelm@63977
  1137
wenzelm@63977
  1138
* Conventional syntax "%(). t" for unit abstractions. Slight syntactic
wenzelm@63977
  1139
INCOMPATIBILITY.
wenzelm@63977
  1140
wenzelm@64390
  1141
* Renamed constants and corresponding theorems:
wenzelm@64390
  1142
wenzelm@64390
  1143
    setsum ~> sum
wenzelm@64390
  1144
    setprod ~> prod
wenzelm@64390
  1145
    listsum ~> sum_list
wenzelm@64390
  1146
    listprod ~> prod_list
wenzelm@64390
  1147
wenzelm@64390
  1148
INCOMPATIBILITY.
wenzelm@64390
  1149
wenzelm@64390
  1150
* Sligthly more standardized theorem names:
wenzelm@64390
  1151
    sgn_times ~> sgn_mult
wenzelm@64390
  1152
    sgn_mult' ~> Real_Vector_Spaces.sgn_mult
wenzelm@64390
  1153
    divide_zero_left ~> div_0
wenzelm@64390
  1154
    zero_mod_left ~> mod_0
wenzelm@64390
  1155
    divide_zero ~> div_by_0
wenzelm@64390
  1156
    divide_1 ~> div_by_1
wenzelm@64390
  1157
    nonzero_mult_divide_cancel_left ~> nonzero_mult_div_cancel_left
wenzelm@64390
  1158
    div_mult_self1_is_id ~> nonzero_mult_div_cancel_left
wenzelm@64390
  1159
    nonzero_mult_divide_cancel_right ~> nonzero_mult_div_cancel_right
wenzelm@64390
  1160
    div_mult_self2_is_id ~> nonzero_mult_div_cancel_right
wenzelm@64390
  1161
    is_unit_divide_mult_cancel_left ~> is_unit_div_mult_cancel_left
wenzelm@64390
  1162
    is_unit_divide_mult_cancel_right ~> is_unit_div_mult_cancel_right
wenzelm@64390
  1163
    mod_div_equality ~> div_mult_mod_eq
wenzelm@64390
  1164
    mod_div_equality2 ~> mult_div_mod_eq
wenzelm@64390
  1165
    mod_div_equality3 ~> mod_div_mult_eq
wenzelm@64390
  1166
    mod_div_equality4 ~> mod_mult_div_eq
wenzelm@64390
  1167
    minus_div_eq_mod ~> minus_div_mult_eq_mod
wenzelm@64390
  1168
    minus_div_eq_mod2 ~> minus_mult_div_eq_mod
wenzelm@64390
  1169
    minus_mod_eq_div ~> minus_mod_eq_div_mult
wenzelm@64390
  1170
    minus_mod_eq_div2 ~> minus_mod_eq_mult_div
wenzelm@64390
  1171
    div_mod_equality' ~> minus_mod_eq_div_mult [symmetric]
wenzelm@64390
  1172
    mod_div_equality' ~> minus_div_mult_eq_mod [symmetric]
wenzelm@64390
  1173
    zmod_zdiv_equality ~> mult_div_mod_eq [symmetric]
wenzelm@64390
  1174
    zmod_zdiv_equality' ~> minus_div_mult_eq_mod [symmetric]
wenzelm@64390
  1175
    Divides.mult_div_cancel ~> minus_mod_eq_mult_div [symmetric]
wenzelm@64390
  1176
    mult_div_cancel ~> minus_mod_eq_mult_div [symmetric]
wenzelm@64390
  1177
    zmult_div_cancel ~> minus_mod_eq_mult_div [symmetric]
wenzelm@64390
  1178
    div_1 ~> div_by_Suc_0
wenzelm@64390
  1179
    mod_1 ~> mod_by_Suc_0
wenzelm@64390
  1180
INCOMPATIBILITY.
wenzelm@64390
  1181
wenzelm@64390
  1182
* New type class "idom_abs_sgn" specifies algebraic properties
wenzelm@64390
  1183
of sign and absolute value functions.  Type class "sgn_if" has
wenzelm@64390
  1184
disappeared.  Slight INCOMPATIBILITY.
wenzelm@64390
  1185
wenzelm@64390
  1186
* Dedicated syntax LENGTH('a) for length of types.
wenzelm@64390
  1187
wenzelm@63977
  1188
* Characters (type char) are modelled as finite algebraic type
wenzelm@63977
  1189
corresponding to {0..255}.
wenzelm@63977
  1190
wenzelm@63977
  1191
  - Logical representation:
wenzelm@63977
  1192
    * 0 is instantiated to the ASCII zero character.
wenzelm@63977
  1193
    * All other characters are represented as "Char n"
wenzelm@63977
  1194
      with n being a raw numeral expression less than 256.
wenzelm@63977
  1195
    * Expressions of the form "Char n" with n greater than 255
wenzelm@63977
  1196
      are non-canonical.
wenzelm@63977
  1197
  - Printing and parsing:
wenzelm@63977
  1198
    * Printable characters are printed and parsed as "CHR ''\<dots>''"
wenzelm@63977
  1199
      (as before).
wenzelm@63977
  1200
    * The ASCII zero character is printed and parsed as "0".
wenzelm@63977
  1201
    * All other canonical characters are printed as "CHR 0xXX"
wenzelm@63977
  1202
      with XX being the hexadecimal character code.  "CHR n"
wenzelm@63977
  1203
      is parsable for every numeral expression n.
wenzelm@63977
  1204
    * Non-canonical characters have no special syntax and are
wenzelm@63977
  1205
      printed as their logical representation.
wenzelm@63977
  1206
  - Explicit conversions from and to the natural numbers are
wenzelm@63977
  1207
    provided as char_of_nat, nat_of_char (as before).
wenzelm@63977
  1208
  - The auxiliary nibble type has been discontinued.
wenzelm@63977
  1209
wenzelm@63977
  1210
INCOMPATIBILITY.
wenzelm@63977
  1211
wenzelm@63977
  1212
* Type class "div" with operation "mod" renamed to type class "modulo"
wenzelm@63977
  1213
with operation "modulo", analogously to type class "divide". This
wenzelm@63977
  1214
eliminates the need to qualify any of those names in the presence of
wenzelm@63977
  1215
infix "mod" syntax. INCOMPATIBILITY.
wenzelm@63977
  1216
wenzelm@63979
  1217
* Statements and proofs of Knaster-Tarski fixpoint combinators lfp/gfp
wenzelm@63979
  1218
have been clarified. The fixpoint properties are lfp_fixpoint, its
wenzelm@63979
  1219
symmetric lfp_unfold (as before), and the duals for gfp. Auxiliary items
wenzelm@63979
  1220
for the proof (lfp_lemma2 etc.) are no longer exported, but can be
wenzelm@63979
  1221
easily recovered by composition with eq_refl. Minor INCOMPATIBILITY.
wenzelm@63979
  1222
wenzelm@63977
  1223
* Constant "surj" is a mere input abbreviation, to avoid hiding an
wenzelm@63977
  1224
equation in term output. Minor INCOMPATIBILITY.
wenzelm@63977
  1225
wenzelm@63977
  1226
* Command 'code_reflect' accepts empty constructor lists for datatypes,
wenzelm@63977
  1227
which renders those abstract effectively.
wenzelm@63977
  1228
wenzelm@63977
  1229
* Command 'export_code' checks given constants for abstraction
wenzelm@63977
  1230
violations: a small guarantee that given constants specify a safe
wenzelm@63977
  1231
interface for the generated code.
wenzelm@63977
  1232
wenzelm@63977
  1233
* Code generation for Scala: ambiguous implicts in class diagrams are
wenzelm@63977
  1234
spelt out explicitly.
wenzelm@63977
  1235
wenzelm@63977
  1236
* Static evaluators (Code_Evaluation.static_* in Isabelle/ML) rely on
wenzelm@63977
  1237
explicitly provided auxiliary definitions for required type class
wenzelm@64390
  1238
dictionaries rather than half-working magic. INCOMPATIBILITY, see the
wenzelm@64390
  1239
tutorial on code generation for details.
wenzelm@64390
  1240
wenzelm@64390
  1241
* Theory Set_Interval: substantial new theorems on indexed sums and
wenzelm@64390
  1242
products.
wenzelm@63977
  1243
wenzelm@63977
  1244
* Locale bijection establishes convenient default simp rules such as
wenzelm@63977
  1245
"inv f (f a) = a" for total bijections.
wenzelm@63977
  1246
wenzelm@63977
  1247
* Abstract locales semigroup, abel_semigroup, semilattice,
wenzelm@63977
  1248
semilattice_neutr, ordering, ordering_top, semilattice_order,
wenzelm@63977
  1249
semilattice_neutr_order, comm_monoid_set, semilattice_set,
wenzelm@63977
  1250
semilattice_neutr_set, semilattice_order_set,
wenzelm@63977
  1251
semilattice_order_neutr_set monoid_list, comm_monoid_list,
wenzelm@63977
  1252
comm_monoid_list_set, comm_monoid_mset, comm_monoid_fun use boldified
wenzelm@63977
  1253
syntax uniformly that does not clash with corresponding global syntax.
wenzelm@63977
  1254
INCOMPATIBILITY.
wenzelm@63977
  1255
wenzelm@63977
  1256
* Former locale lifting_syntax is now a bundle, which is easier to
wenzelm@63977
  1257
include in a local context or theorem statement, e.g. "context includes
wenzelm@63977
  1258
lifting_syntax begin ... end". Minor INCOMPATIBILITY.
wenzelm@63977
  1259
wenzelm@63807
  1260
* Some old / obsolete theorems have been renamed / removed, potential
wenzelm@63807
  1261
INCOMPATIBILITY.
wenzelm@63807
  1262
wenzelm@63807
  1263
  nat_less_cases  --  removed, use linorder_cases instead
wenzelm@63807
  1264
  inv_image_comp  --  removed, use image_inv_f_f instead
wenzelm@63807
  1265
  image_surj_f_inv_f  ~>  image_f_inv_f
wenzelm@63113
  1266
Mathias@63456
  1267
* Some theorems about groups and orders have been generalised from
Mathias@63456
  1268
  groups to semi-groups that are also monoids:
Mathias@63456
  1269
    le_add_same_cancel1
Mathias@63456
  1270
    le_add_same_cancel2
Mathias@63456
  1271
    less_add_same_cancel1
Mathias@63456
  1272
    less_add_same_cancel2
Mathias@63456
  1273
    add_le_same_cancel1
Mathias@63456
  1274
    add_le_same_cancel2
Mathias@63456
  1275
    add_less_same_cancel1
Mathias@63456
  1276
    add_less_same_cancel2
Mathias@63456
  1277
Mathias@63456
  1278
* Some simplifications theorems about rings have been removed, since
Mathias@63456
  1279
  superseeded by a more general version:
Mathias@63456
  1280
    less_add_cancel_left_greater_zero ~> less_add_same_cancel1
Mathias@63456
  1281
    less_add_cancel_right_greater_zero ~> less_add_same_cancel2
Mathias@63456
  1282
    less_eq_add_cancel_left_greater_eq_zero ~> le_add_same_cancel1
Mathias@63456
  1283
    less_eq_add_cancel_right_greater_eq_zero ~> le_add_same_cancel2
Mathias@63456
  1284
    less_eq_add_cancel_left_less_eq_zero ~> add_le_same_cancel1
Mathias@63456
  1285
    less_eq_add_cancel_right_less_eq_zero ~> add_le_same_cancel2
Mathias@63456
  1286
    less_add_cancel_left_less_zero ~> add_less_same_cancel1
Mathias@63456
  1287
    less_add_cancel_right_less_zero ~> add_less_same_cancel2
Mathias@63456
  1288
INCOMPATIBILITY.
Mathias@63456
  1289
wenzelm@62407
  1290
* Renamed split_if -> if_split and split_if_asm -> if_split_asm to
wenzelm@62407
  1291
resemble the f.split naming convention, INCOMPATIBILITY.
nipkow@62396
  1292
wenzelm@63977
  1293
* Added class topological_monoid.
wenzelm@63977
  1294
wenzelm@64391
  1295
* The following theorems have been renamed:
wenzelm@64391
  1296
nipkow@64457
  1297
  setsum_left_distrib ~> sum_distrib_right
nipkow@64457
  1298
  setsum_right_distrib ~> sum_distrib_left
wenzelm@64391
  1299
wenzelm@64391
  1300
INCOMPATIBILITY.
wenzelm@64391
  1301
wenzelm@64391
  1302
* Compound constants INFIMUM and SUPREMUM are mere abbreviations now.
wenzelm@64391
  1303
INCOMPATIBILITY.
wenzelm@64391
  1304
wenzelm@64391
  1305
* "Gcd (f ` A)" and "Lcm (f ` A)" are printed with optional
wenzelm@64391
  1306
comprehension-like syntax analogously to "Inf (f ` A)" and "Sup (f `
wenzelm@64391
  1307
A)".
wenzelm@64391
  1308
wenzelm@64391
  1309
* Class semiring_Lcd merged into semiring_Gcd. INCOMPATIBILITY.
wenzelm@64391
  1310
wenzelm@64391
  1311
* The type class ordered_comm_monoid_add is now called
wenzelm@64391
  1312
ordered_cancel_comm_monoid_add. A new type class ordered_comm_monoid_add
wenzelm@64391
  1313
is introduced as the combination of ordered_ab_semigroup_add +
wenzelm@64391
  1314
comm_monoid_add. INCOMPATIBILITY.
wenzelm@64391
  1315
wenzelm@64391
  1316
* Introduced the type classes canonically_ordered_comm_monoid_add and
wenzelm@64391
  1317
dioid.
wenzelm@64391
  1318
wenzelm@64391
  1319
* Introduced the type class ordered_ab_semigroup_monoid_add_imp_le. When
wenzelm@64391
  1320
instantiating linordered_semiring_strict and ordered_ab_group_add, an
wenzelm@64391
  1321
explicit instantiation of ordered_ab_semigroup_monoid_add_imp_le might
wenzelm@64391
  1322
be required. INCOMPATIBILITY.
nipkow@63117
  1323
haftmann@62348
  1324
* Dropped various legacy fact bindings, whose replacements are often
haftmann@62348
  1325
of a more general type also:
haftmann@62348
  1326
  lcm_left_commute_nat ~> lcm.left_commute
haftmann@62348
  1327
  lcm_left_commute_int ~> lcm.left_commute
haftmann@62348
  1328
  gcd_left_commute_nat ~> gcd.left_commute
haftmann@62348
  1329
  gcd_left_commute_int ~> gcd.left_commute
haftmann@62348
  1330
  gcd_greatest_iff_nat ~> gcd_greatest_iff
haftmann@62348
  1331
  gcd_greatest_iff_int ~> gcd_greatest_iff
haftmann@62348
  1332
  coprime_dvd_mult_nat ~> coprime_dvd_mult
haftmann@62348
  1333
  coprime_dvd_mult_int ~> coprime_dvd_mult
haftmann@62348
  1334
  zpower_numeral_even ~> power_numeral_even
haftmann@62348
  1335
  gcd_mult_cancel_nat ~> gcd_mult_cancel
haftmann@62348
  1336
  gcd_mult_cancel_int ~> gcd_mult_cancel
haftmann@62348
  1337
  div_gcd_coprime_nat ~> div_gcd_coprime
haftmann@62348
  1338
  div_gcd_coprime_int ~> div_gcd_coprime
haftmann@62348
  1339
  zpower_numeral_odd ~> power_numeral_odd
haftmann@62348
  1340
  zero_less_int_conv ~> of_nat_0_less_iff
haftmann@62348
  1341
  gcd_greatest_nat ~> gcd_greatest
haftmann@62348
  1342
  gcd_greatest_int ~> gcd_greatest
haftmann@62348
  1343
  coprime_mult_nat ~> coprime_mult
haftmann@62348
  1344
  coprime_mult_int ~> coprime_mult
haftmann@62348
  1345
  lcm_commute_nat ~> lcm.commute
haftmann@62348
  1346
  lcm_commute_int ~> lcm.commute
haftmann@62348
  1347
  int_less_0_conv ~> of_nat_less_0_iff
haftmann@62348
  1348
  gcd_commute_nat ~> gcd.commute
haftmann@62348
  1349
  gcd_commute_int ~> gcd.commute
haftmann@62348
  1350
  Gcd_insert_nat ~> Gcd_insert
haftmann@62348
  1351
  Gcd_insert_int ~> Gcd_insert
haftmann@62348
  1352
  of_int_int_eq ~> of_int_of_nat_eq
haftmann@62348
  1353
  lcm_least_nat ~> lcm_least
haftmann@62348
  1354
  lcm_least_int ~> lcm_least
haftmann@62348
  1355
  lcm_assoc_nat ~> lcm.assoc
haftmann@62348
  1356
  lcm_assoc_int ~> lcm.assoc
haftmann@62348
  1357
  int_le_0_conv ~> of_nat_le_0_iff
haftmann@62348
  1358
  int_eq_0_conv ~> of_nat_eq_0_iff
haftmann@62348
  1359
  Gcd_empty_nat ~> Gcd_empty
haftmann@62348
  1360
  Gcd_empty_int ~> Gcd_empty
haftmann@62348
  1361
  gcd_assoc_nat ~> gcd.assoc
haftmann@62348
  1362
  gcd_assoc_int ~> gcd.assoc
haftmann@62348
  1363
  zero_zle_int ~> of_nat_0_le_iff
haftmann@62348
  1364
  lcm_dvd2_nat ~> dvd_lcm2
haftmann@62348
  1365
  lcm_dvd2_int ~> dvd_lcm2
haftmann@62348
  1366
  lcm_dvd1_nat ~> dvd_lcm1
haftmann@62348
  1367
  lcm_dvd1_int ~> dvd_lcm1
haftmann@62348
  1368
  gcd_zero_nat ~> gcd_eq_0_iff
haftmann@62348
  1369
  gcd_zero_int ~> gcd_eq_0_iff
haftmann@62348
  1370
  gcd_dvd2_nat ~> gcd_dvd2
haftmann@62348
  1371
  gcd_dvd2_int ~> gcd_dvd2
haftmann@62348
  1372
  gcd_dvd1_nat ~> gcd_dvd1
haftmann@62348
  1373
  gcd_dvd1_int ~> gcd_dvd1
haftmann@62348
  1374
  int_numeral ~> of_nat_numeral
haftmann@62348
  1375
  lcm_ac_nat ~> ac_simps
haftmann@62348
  1376
  lcm_ac_int ~> ac_simps
haftmann@62348
  1377
  gcd_ac_nat ~> ac_simps
haftmann@62348
  1378
  gcd_ac_int ~> ac_simps
haftmann@62348
  1379
  abs_int_eq ~> abs_of_nat
haftmann@62348
  1380
  zless_int ~> of_nat_less_iff
haftmann@62348
  1381
  zdiff_int ~> of_nat_diff
haftmann@62348
  1382
  zadd_int ~> of_nat_add
haftmann@62348
  1383
  int_mult ~> of_nat_mult
haftmann@62348
  1384
  int_Suc ~> of_nat_Suc
haftmann@62348
  1385
  inj_int ~> inj_of_nat
haftmann@62348
  1386
  int_1 ~> of_nat_1
haftmann@62348
  1387
  int_0 ~> of_nat_0
haftmann@62353
  1388
  Lcm_empty_nat ~> Lcm_empty
haftmann@62353
  1389
  Lcm_empty_int ~> Lcm_empty
haftmann@62353
  1390
  Lcm_insert_nat ~> Lcm_insert
haftmann@62353
  1391
  Lcm_insert_int ~> Lcm_insert
haftmann@62353
  1392
  comp_fun_idem_gcd_nat ~> comp_fun_idem_gcd
haftmann@62353
  1393
  comp_fun_idem_gcd_int ~> comp_fun_idem_gcd
haftmann@62353
  1394
  comp_fun_idem_lcm_nat ~> comp_fun_idem_lcm
haftmann@62353
  1395
  comp_fun_idem_lcm_int ~> comp_fun_idem_lcm
haftmann@62353
  1396
  Lcm_eq_0 ~> Lcm_eq_0_I
haftmann@62353
  1397
  Lcm0_iff ~> Lcm_0_iff
haftmann@62353
  1398
  Lcm_dvd_int ~> Lcm_least
haftmann@62353
  1399
  divides_mult_nat ~> divides_mult
haftmann@62353
  1400
  divides_mult_int ~> divides_mult
haftmann@62353
  1401
  lcm_0_nat ~> lcm_0_right
haftmann@62353
  1402
  lcm_0_int ~> lcm_0_right
haftmann@62353
  1403
  lcm_0_left_nat ~> lcm_0_left
haftmann@62353
  1404
  lcm_0_left_int ~> lcm_0_left
haftmann@62353
  1405
  dvd_gcd_D1_nat ~> dvd_gcdD1
haftmann@62353
  1406
  dvd_gcd_D1_int ~> dvd_gcdD1
haftmann@62353
  1407
  dvd_gcd_D2_nat ~> dvd_gcdD2
haftmann@62353
  1408
  dvd_gcd_D2_int ~> dvd_gcdD2
haftmann@62353
  1409
  coprime_dvd_mult_iff_nat ~> coprime_dvd_mult_iff
haftmann@62353
  1410
  coprime_dvd_mult_iff_int ~> coprime_dvd_mult_iff
haftmann@62348
  1411
  realpow_minus_mult ~> power_minus_mult
haftmann@62348
  1412
  realpow_Suc_le_self ~> power_Suc_le_self
haftmann@62353
  1413
  dvd_Gcd, dvd_Gcd_nat, dvd_Gcd_int removed in favour of Gcd_greatest
haftmann@62347
  1414
INCOMPATIBILITY.
haftmann@62347
  1415
lp15@63967
  1416
* Renamed HOL/Quotient_Examples/FSet.thy to
wenzelm@63977
  1417
HOL/Quotient_Examples/Quotient_FSet.thy INCOMPATIBILITY.
wenzelm@63977
  1418
wenzelm@64390
  1419
* Session HOL-Library: theory FinFun bundles "finfun_syntax" and
wenzelm@64390
  1420
"no_finfun_syntax" allow to control optional syntax in local contexts;
wenzelm@64390
  1421
this supersedes former theory FinFun_Syntax. INCOMPATIBILITY, e.g. use
wenzelm@64390
  1422
"unbundle finfun_syntax" to imitate import of
wenzelm@64390
  1423
"~~/src/HOL/Library/FinFun_Syntax".
wenzelm@64390
  1424
wenzelm@64390
  1425
* Session HOL-Library: theory Multiset_Permutations (executably) defines
wenzelm@64390
  1426
the set of permutations of a given set or multiset, i.e. the set of all
wenzelm@64390
  1427
lists that contain every element of the carrier (multi-)set exactly
wenzelm@64390
  1428
once.
wenzelm@64390
  1429
wenzelm@64390
  1430
* Session HOL-Library: multiset membership is now expressed using
wenzelm@64390
  1431
set_mset rather than count.
wenzelm@64390
  1432
wenzelm@64390
  1433
  - Expressions "count M a > 0" and similar simplify to membership
wenzelm@64390
  1434
    by default.
wenzelm@64390
  1435
wenzelm@64390
  1436
  - Converting between "count M a = 0" and non-membership happens using
wenzelm@64390
  1437
    equations count_eq_zero_iff and not_in_iff.
wenzelm@64390
  1438
wenzelm@64390
  1439
  - Rules count_inI and in_countE obtain facts of the form
wenzelm@64390
  1440
    "count M a = n" from membership.
wenzelm@64390
  1441
wenzelm@64390
  1442
  - Rules count_in_diffI and in_diff_countE obtain facts of the form
wenzelm@64390
  1443
    "count M a = n + count N a" from membership on difference sets.
wenzelm@64390
  1444
wenzelm@64390
  1445
INCOMPATIBILITY.
wenzelm@64390
  1446
wenzelm@64390
  1447
* Session HOL-Library: theory LaTeXsugar uses new-style "dummy_pats" for
wenzelm@64390
  1448
displaying equations in functional programming style --- variables
wenzelm@64390
  1449
present on the left-hand but not on the righ-hand side are replaced by
wenzelm@64390
  1450
underscores.
wenzelm@64390
  1451
wenzelm@64390
  1452
* Session HOL-Library: theory Combinator_PER provides combinator to
wenzelm@64390
  1453
build partial equivalence relations from a predicate and an equivalence
wenzelm@64390
  1454
relation.
wenzelm@64390
  1455
wenzelm@64390
  1456
* Session HOL-Library: theory Perm provides basic facts about almost
wenzelm@64390
  1457
everywhere fix bijections.
wenzelm@64390
  1458
wenzelm@64390
  1459
* Session HOL-Library: theory Normalized_Fraction allows viewing an
wenzelm@64390
  1460
element of a field of fractions as a normalized fraction (i.e. a pair of
wenzelm@64390
  1461
numerator and denominator such that the two are coprime and the
wenzelm@64390
  1462
denominator is normalized wrt. unit factors).
wenzelm@64390
  1463
wenzelm@64390
  1464
* Session HOL-NSA has been renamed to HOL-Nonstandard_Analysis.
wenzelm@64390
  1465
wenzelm@64390
  1466
* Session HOL-Multivariate_Analysis has been renamed to HOL-Analysis.
wenzelm@64390
  1467
wenzelm@64390
  1468
* Session HOL-Analysis: measure theory has been moved here from
wenzelm@64390
  1469
HOL-Probability. When importing HOL-Analysis some theorems need
wenzelm@64390
  1470
additional name spaces prefixes due to name clashes. INCOMPATIBILITY.
wenzelm@64390
  1471
wenzelm@64390
  1472
* Session HOL-Analysis: more complex analysis including Cauchy's
wenzelm@64390
  1473
inequality, Liouville theorem, open mapping theorem, maximum modulus
wenzelm@64390
  1474
principle, Residue theorem, Schwarz Lemma.
wenzelm@64390
  1475
wenzelm@64390
  1476
* Session HOL-Analysis: Theory of polyhedra: faces, extreme points,
wenzelm@64390
  1477
polytopes, and the Krein–Milman Minkowski theorem.
wenzelm@64390
  1478
wenzelm@64390
  1479
* Session HOL-Analysis: Numerous results ported from the HOL Light
wenzelm@64390
  1480
libraries: homeomorphisms, continuous function extensions, invariance of
wenzelm@64390
  1481
domain.
wenzelm@64390
  1482
wenzelm@64390
  1483
* Session HOL-Probability: the type of emeasure and nn_integral was
wenzelm@64390
  1484
changed from ereal to ennreal, INCOMPATIBILITY.
wenzelm@64390
  1485
wenzelm@64390
  1486
  emeasure :: 'a measure \<Rightarrow> 'a set \<Rightarrow> ennreal
wenzelm@64390
  1487
  nn_integral :: 'a measure \<Rightarrow> ('a \<Rightarrow> ennreal) \<Rightarrow> ennreal
wenzelm@64390
  1488
wenzelm@64390
  1489
* Session HOL-Probability: Code generation and QuickCheck for
wenzelm@64390
  1490
Probability Mass Functions.
wenzelm@64390
  1491
wenzelm@64390
  1492
* Session HOL-Probability: theory Random_Permutations contains some
wenzelm@64390
  1493
theory about choosing a permutation of a set uniformly at random and
wenzelm@64390
  1494
folding over a list in random order.
wenzelm@64390
  1495
wenzelm@64390
  1496
* Session HOL-Probability: theory SPMF formalises discrete
wenzelm@64390
  1497
subprobability distributions.
wenzelm@64390
  1498
wenzelm@64390
  1499
* Session HOL-Library: the names of multiset theorems have been
wenzelm@64390
  1500
normalised to distinguish which ordering the theorems are about
wenzelm@64390
  1501
wenzelm@64390
  1502
    mset_less_eqI ~> mset_subset_eqI
wenzelm@64390
  1503
    mset_less_insertD ~> mset_subset_insertD
wenzelm@64390
  1504
    mset_less_eq_count ~> mset_subset_eq_count
wenzelm@64390
  1505
    mset_less_diff_self ~> mset_subset_diff_self
wenzelm@64390
  1506
    mset_le_exists_conv ~> mset_subset_eq_exists_conv
wenzelm@64390
  1507
    mset_le_mono_add_right_cancel ~> mset_subset_eq_mono_add_right_cancel
wenzelm@64390
  1508
    mset_le_mono_add_left_cancel ~> mset_subset_eq_mono_add_left_cancel
wenzelm@64390
  1509
    mset_le_mono_add ~> mset_subset_eq_mono_add
wenzelm@64390
  1510
    mset_le_add_left ~> mset_subset_eq_add_left
wenzelm@64390
  1511
    mset_le_add_right ~> mset_subset_eq_add_right
wenzelm@64390
  1512
    mset_le_single ~> mset_subset_eq_single
wenzelm@64390
  1513
    mset_le_multiset_union_diff_commute ~> mset_subset_eq_multiset_union_diff_commute
wenzelm@64390
  1514
    diff_le_self ~> diff_subset_eq_self
wenzelm@64390
  1515
    mset_leD ~> mset_subset_eqD
wenzelm@64390
  1516
    mset_lessD ~> mset_subsetD
wenzelm@64390
  1517
    mset_le_insertD ~> mset_subset_eq_insertD
wenzelm@64390
  1518
    mset_less_of_empty ~> mset_subset_of_empty
wenzelm@64390
  1519
    mset_less_size ~> mset_subset_size
wenzelm@64390
  1520
    wf_less_mset_rel ~> wf_subset_mset_rel
wenzelm@64390
  1521
    count_le_replicate_mset_le ~> count_le_replicate_mset_subset_eq
wenzelm@64390
  1522
    mset_remdups_le ~> mset_remdups_subset_eq
wenzelm@64390
  1523
    ms_lesseq_impl ~> subset_eq_mset_impl
wenzelm@64390
  1524
wenzelm@64390
  1525
Some functions have been renamed:
wenzelm@64390
  1526
    ms_lesseq_impl -> subset_eq_mset_impl
wenzelm@64390
  1527
wenzelm@64390
  1528
* HOL-Library: multisets are now ordered with the multiset ordering
wenzelm@64390
  1529
    #\<subseteq># ~> \<le>
wenzelm@64390
  1530
    #\<subset># ~> <
wenzelm@64390
  1531
    le_multiset ~> less_eq_multiset
wenzelm@64390
  1532
    less_multiset ~> le_multiset
wenzelm@64390
  1533
INCOMPATIBILITY.
wenzelm@64390
  1534
wenzelm@64390
  1535
* Session HOL-Library: the prefix multiset_order has been discontinued:
wenzelm@64390
  1536
the theorems can be directly accessed. As a consequence, the lemmas
wenzelm@64390
  1537
"order_multiset" and "linorder_multiset" have been discontinued, and the
wenzelm@64390
  1538
interpretations "multiset_linorder" and "multiset_wellorder" have been
wenzelm@64390
  1539
replaced by instantiations. INCOMPATIBILITY.
wenzelm@64390
  1540
wenzelm@64390
  1541
* Session HOL-Library: some theorems about the multiset ordering have
wenzelm@64390
  1542
been renamed:
wenzelm@64390
  1543
wenzelm@64390
  1544
    le_multiset_def ~> less_eq_multiset_def
wenzelm@64390
  1545
    less_multiset_def ~> le_multiset_def
wenzelm@64390
  1546
    less_eq_imp_le_multiset ~> subset_eq_imp_le_multiset
wenzelm@64390
  1547
    mult_less_not_refl ~> mset_le_not_refl
wenzelm@64390
  1548
    mult_less_trans ~> mset_le_trans
wenzelm@64390
  1549
    mult_less_not_sym ~> mset_le_not_sym
wenzelm@64390
  1550
    mult_less_asym ~> mset_le_asym
wenzelm@64390
  1551
    mult_less_irrefl ~> mset_le_irrefl
wenzelm@64390
  1552
    union_less_mono2{,1,2} ~> union_le_mono2{,1,2}
wenzelm@64390
  1553
wenzelm@64390
  1554
    le_multiset\<^sub>H\<^sub>O ~> less_eq_multiset\<^sub>H\<^sub>O
wenzelm@64390
  1555
    le_multiset_total ~> less_eq_multiset_total
wenzelm@64390
  1556
    less_multiset_right_total ~> subset_eq_imp_le_multiset
wenzelm@64390
  1557
    le_multiset_empty_left ~> less_eq_multiset_empty_left
wenzelm@64390
  1558
    le_multiset_empty_right ~> less_eq_multiset_empty_right
wenzelm@64390
  1559
    less_multiset_empty_right ~> le_multiset_empty_left
wenzelm@64390
  1560
    less_multiset_empty_left ~> le_multiset_empty_right
wenzelm@64390
  1561
    union_less_diff_plus ~> union_le_diff_plus
wenzelm@64390
  1562
    ex_gt_count_imp_less_multiset ~> ex_gt_count_imp_le_multiset
wenzelm@64390
  1563
    less_multiset_plus_left_nonempty ~> le_multiset_plus_left_nonempty
wenzelm@64390
  1564
    le_multiset_plus_right_nonempty ~> le_multiset_plus_right_nonempty
wenzelm@64390
  1565
INCOMPATIBILITY.
wenzelm@64390
  1566
wenzelm@64390
  1567
* Session HOL-Library: the lemma mset_map has now the attribute [simp].
wenzelm@64390
  1568
INCOMPATIBILITY.
wenzelm@64390
  1569
wenzelm@64390
  1570
* Session HOL-Library: some theorems about multisets have been removed.
wenzelm@64390
  1571
INCOMPATIBILITY, use the following replacements:
wenzelm@64390
  1572
wenzelm@64390
  1573
    le_multiset_plus_plus_left_iff ~> add_less_cancel_right
wenzelm@64390
  1574
    less_multiset_plus_plus_left_iff ~> add_less_cancel_right
wenzelm@64390
  1575
    le_multiset_plus_plus_right_iff ~> add_less_cancel_left
wenzelm@64390
  1576
    less_multiset_plus_plus_right_iff ~> add_less_cancel_left
wenzelm@64390
  1577
    add_eq_self_empty_iff ~> add_cancel_left_right
wenzelm@64390
  1578
    mset_subset_add_bothsides ~> subset_mset.add_less_cancel_right
wenzelm@64390
  1579
    mset_less_add_bothsides ~> subset_mset.add_less_cancel_right
wenzelm@64390
  1580
    mset_le_add_bothsides ~> subset_mset.add_less_cancel_right
wenzelm@64390
  1581
    empty_inter ~> subset_mset.inf_bot_left
wenzelm@64390
  1582
    inter_empty ~> subset_mset.inf_bot_right
wenzelm@64390
  1583
    empty_sup ~> subset_mset.sup_bot_left
wenzelm@64390
  1584
    sup_empty ~> subset_mset.sup_bot_right
wenzelm@64390
  1585
    bdd_below_multiset ~> subset_mset.bdd_above_bot
wenzelm@64390
  1586
    subset_eq_empty ~> subset_mset.le_zero_eq
wenzelm@64390
  1587
    le_empty ~> subset_mset.le_zero_eq
wenzelm@64390
  1588
    mset_subset_empty_nonempty ~> subset_mset.zero_less_iff_neq_zero
wenzelm@64390
  1589
    mset_less_empty_nonempty ~> subset_mset.zero_less_iff_neq_zero
wenzelm@64390
  1590
wenzelm@64390
  1591
* Session HOL-Library: some typeclass constraints about multisets have
wenzelm@64390
  1592
been reduced from ordered or linordered to preorder. Multisets have the
wenzelm@64390
  1593
additional typeclasses order_bot, no_top,
wenzelm@64390
  1594
ordered_ab_semigroup_add_imp_le, ordered_cancel_comm_monoid_add,
wenzelm@64390
  1595
linordered_cancel_ab_semigroup_add, and
wenzelm@64390
  1596
ordered_ab_semigroup_monoid_add_imp_le. INCOMPATIBILITY.
wenzelm@64390
  1597
wenzelm@64390
  1598
* Session HOL-Library: there are some new simplification rules about
wenzelm@64390
  1599
multisets, the multiset ordering, and the subset ordering on multisets.
wenzelm@64390
  1600
INCOMPATIBILITY.
wenzelm@64390
  1601
wenzelm@64390
  1602
* Session HOL-Library: the subset ordering on multisets has now the
wenzelm@64390
  1603
interpretations ordered_ab_semigroup_monoid_add_imp_le and
wenzelm@64390
  1604
bounded_lattice_bot. INCOMPATIBILITY.
wenzelm@64390
  1605
wenzelm@64390
  1606
* Session HOL-Library, theory Multiset: single has been removed in favor
wenzelm@64390
  1607
of add_mset that roughly corresponds to Set.insert. Some theorems have
wenzelm@64390
  1608
removed or changed:
wenzelm@64390
  1609
wenzelm@64390
  1610
  single_not_empty ~> add_mset_not_empty or empty_not_add_mset
wenzelm@64390
  1611
  fold_mset_insert ~> fold_mset_add_mset
wenzelm@64390
  1612
  image_mset_insert ~> image_mset_add_mset
wenzelm@64390
  1613
  union_single_eq_diff
wenzelm@64390
  1614
  multi_self_add_other_not_self
wenzelm@64390
  1615
  diff_single_eq_union
wenzelm@64390
  1616
INCOMPATIBILITY.
wenzelm@64390
  1617
wenzelm@64390
  1618
* Session HOL-Library, theory Multiset: some theorems have been changed
wenzelm@64390
  1619
to use add_mset instead of single:
wenzelm@64390
  1620
wenzelm@64390
  1621
  mset_add
wenzelm@64390
  1622
  multi_self_add_other_not_self
wenzelm@64390
  1623
  diff_single_eq_union
wenzelm@64390
  1624
  union_single_eq_diff
wenzelm@64390
  1625
  union_single_eq_member
wenzelm@64390
  1626
  add_eq_conv_diff
wenzelm@64390
  1627
  insert_noteq_member
wenzelm@64390
  1628
  add_eq_conv_ex
wenzelm@64390
  1629
  multi_member_split
wenzelm@64390
  1630
  multiset_add_sub_el_shuffle
wenzelm@64390
  1631
  mset_subset_eq_insertD
wenzelm@64390
  1632
  mset_subset_insertD
wenzelm@64390
  1633
  insert_subset_eq_iff
wenzelm@64390
  1634
  insert_union_subset_iff
wenzelm@64390
  1635
  multi_psub_of_add_self
wenzelm@64390
  1636
  inter_add_left1
wenzelm@64390
  1637
  inter_add_left2
wenzelm@64390
  1638
  inter_add_right1
wenzelm@64390
  1639
  inter_add_right2
wenzelm@64390
  1640
  sup_union_left1
wenzelm@64390
  1641
  sup_union_left2
wenzelm@64390
  1642
  sup_union_right1
wenzelm@64390
  1643
  sup_union_right2
wenzelm@64390
  1644
  size_eq_Suc_imp_eq_union
wenzelm@64390
  1645
  multi_nonempty_split
wenzelm@64390
  1646
  mset_insort
wenzelm@64390
  1647
  mset_update
wenzelm@64390
  1648
  mult1I
wenzelm@64390
  1649
  less_add
wenzelm@64390
  1650
  mset_zip_take_Cons_drop_twice
wenzelm@64390
  1651
  rel_mset_Zero
wenzelm@64390
  1652
  msed_map_invL
wenzelm@64390
  1653
  msed_map_invR
wenzelm@64390
  1654
  msed_rel_invL
wenzelm@64390
  1655
  msed_rel_invR
wenzelm@64390
  1656
  le_multiset_right_total
wenzelm@64390
  1657
  multiset_induct
wenzelm@64390
  1658
  multiset_induct2_size
wenzelm@64390
  1659
  multiset_induct2
wenzelm@64390
  1660
INCOMPATIBILITY.
wenzelm@64390
  1661
wenzelm@64390
  1662
* Session HOL-Library, theory Multiset: the definitions of some
wenzelm@64390
  1663
constants have changed to use add_mset instead of adding a single
wenzelm@64390
  1664
element:
wenzelm@64390
  1665
wenzelm@64390
  1666
  image_mset
wenzelm@64390
  1667
  mset
wenzelm@64390
  1668
  replicate_mset
wenzelm@64390
  1669
  mult1
wenzelm@64390
  1670
  pred_mset
wenzelm@64390
  1671
  rel_mset'
wenzelm@64390
  1672
  mset_insort
wenzelm@64390
  1673
wenzelm@64390
  1674
INCOMPATIBILITY.
wenzelm@64390
  1675
wenzelm@64390
  1676
* Session HOL-Library, theory Multiset: due to the above changes, the
wenzelm@64390
  1677
attributes of some multiset theorems have been changed:
wenzelm@64390
  1678
wenzelm@64390
  1679
  insert_DiffM  [] ~> [simp]
wenzelm@64390
  1680
  insert_DiffM2 [simp] ~> []
wenzelm@64390
  1681
  diff_add_mset_swap [simp]
wenzelm@64390
  1682
  fold_mset_add_mset [simp]
wenzelm@64390
  1683
  diff_diff_add [simp] (for multisets only)
wenzelm@64390
  1684
  diff_cancel [simp] ~> []
wenzelm@64390
  1685
  count_single [simp] ~> []
wenzelm@64390
  1686
  set_mset_single [simp] ~> []
wenzelm@64390
  1687
  size_multiset_single [simp] ~> []
wenzelm@64390
  1688
  size_single [simp] ~> []
wenzelm@64390
  1689
  image_mset_single [simp] ~> []
wenzelm@64390
  1690
  mset_subset_eq_mono_add_right_cancel [simp] ~> []
wenzelm@64390
  1691
  mset_subset_eq_mono_add_left_cancel [simp] ~> []
wenzelm@64390
  1692
  fold_mset_single [simp] ~> []
wenzelm@64390
  1693
  subset_eq_empty [simp] ~> []
wenzelm@64390
  1694
  empty_sup [simp] ~> []
wenzelm@64390
  1695
  sup_empty [simp] ~> []
wenzelm@64390
  1696
  inter_empty [simp] ~> []
wenzelm@64390
  1697
  empty_inter [simp] ~> []
wenzelm@64390
  1698
INCOMPATIBILITY.
wenzelm@64390
  1699
wenzelm@64391
  1700
* Session HOL-Library, theory Multiset: the order of the variables in
wenzelm@64390
  1701
the second cases of multiset_induct, multiset_induct2_size,
wenzelm@64390
  1702
multiset_induct2 has been changed (e.g. Add A a ~> Add a A).
wenzelm@64390
  1703
INCOMPATIBILITY.
wenzelm@64390
  1704
wenzelm@64390
  1705
* Session HOL-Library, theory Multiset: there is now a simplification
wenzelm@64390
  1706
procedure on multisets. It mimics the behavior of the procedure on
wenzelm@64390
  1707
natural numbers. INCOMPATIBILITY.
wenzelm@64390
  1708
wenzelm@64390
  1709
* Session HOL-Library, theory Multiset: renamed sums and products of
wenzelm@64390
  1710
multisets:
wenzelm@64390
  1711
wenzelm@64390
  1712
  msetsum ~> sum_mset
wenzelm@64390
  1713
  msetprod ~> prod_mset
wenzelm@64390
  1714
wenzelm@64390
  1715
* Session HOL-Library, theory Multiset: the notation for intersection
wenzelm@64390
  1716
and union of multisets have been changed:
wenzelm@64390
  1717
wenzelm@64390
  1718
  #\<inter> ~> \<inter>#
wenzelm@64390
  1719
  #\<union> ~> \<union>#
wenzelm@64390
  1720
wenzelm@64390
  1721
INCOMPATIBILITY.
wenzelm@64390
  1722
wenzelm@64390
  1723
* Session HOL-Library, theory Multiset: the lemma
wenzelm@64390
  1724
one_step_implies_mult_aux on multisets has been removed, use
wenzelm@64390
  1725
one_step_implies_mult instead. INCOMPATIBILITY.
wenzelm@64390
  1726
wenzelm@64390
  1727
* Session HOL-Library: theory Complete_Partial_Order2 provides reasoning
wenzelm@64390
  1728
support for monotonicity and continuity in chain-complete partial orders
wenzelm@64390
  1729
and about admissibility conditions for fixpoint inductions.
wenzelm@64390
  1730
haftmann@64523
  1731
* Session HOL-Library: theory Library/Polynomial contains also
haftmann@64523
  1732
derivation of polynomials (formerly in Library/Poly_Deriv) but not
haftmann@64523
  1733
gcd/lcm on polynomials over fields. This has been moved to a separate
haftmann@64523
  1734
theory Library/Polynomial_GCD_euclidean.thy, to pave way for a possible
haftmann@64523
  1735
future different type class instantiation for polynomials over factorial
haftmann@64523
  1736
rings. INCOMPATIBILITY.
wenzelm@64390
  1737
wenzelm@64390
  1738
* Session HOL-Library: theory Sublist provides function "prefixes" with
wenzelm@64390
  1739
the following renaming
wenzelm@64390
  1740
wenzelm@64390
  1741
  prefixeq -> prefix
wenzelm@64390
  1742
  prefix -> strict_prefix
wenzelm@64390
  1743
  suffixeq -> suffix
wenzelm@64390
  1744
  suffix -> strict_suffix
wenzelm@64390
  1745
wenzelm@64390
  1746
Added theory of longest common prefixes.
blanchet@64389
  1747
wenzelm@64391
  1748
* Session HOL-Number_Theory: algebraic foundation for primes:
wenzelm@64391
  1749
Generalisation of predicate "prime" and introduction of predicates
wenzelm@64391
  1750
"prime_elem", "irreducible", a "prime_factorization" function, and the
wenzelm@64391
  1751
"factorial_ring" typeclass with instance proofs for nat, int, poly. Some
wenzelm@64391
  1752
theorems now have different names, most notably "prime_def" is now
wenzelm@64391
  1753
"prime_nat_iff". INCOMPATIBILITY.
wenzelm@64391
  1754
wenzelm@64391
  1755
* Session Old_Number_Theory has been removed, after porting remaining
wenzelm@64391
  1756
theories.
wenzelm@64391
  1757
wenzelm@64551
  1758
* Session HOL-Types_To_Sets provides an experimental extension of
wenzelm@64551
  1759
Higher-Order Logic to allow translation of types to sets.
wenzelm@64551
  1760
wenzelm@63198
  1761
wenzelm@62498
  1762
*** ML ***
wenzelm@62498
  1763
wenzelm@63227
  1764
* Integer.gcd and Integer.lcm use efficient operations from the Poly/ML
wenzelm@63228
  1765
library (notably for big integers). Subtle change of semantics:
wenzelm@63228
  1766
Integer.gcd and Integer.lcm both normalize the sign, results are never
wenzelm@63228
  1767
negative. This coincides with the definitions in HOL/GCD.thy.
wenzelm@63228
  1768
INCOMPATIBILITY.
wenzelm@63227
  1769
wenzelm@63212
  1770
* Structure Rat for rational numbers is now an integral part of
wenzelm@63215
  1771
Isabelle/ML, with special notation @int/nat or @int for numerals (an
wenzelm@63215
  1772
abbreviation for antiquotation @{Pure.rat argument}) and ML pretty
wenzelm@63212
  1773
printing. Standard operations on type Rat.rat are provided via ad-hoc
wenzelm@63215
  1774
overloading of + - * / < <= > >= ~ abs. INCOMPATIBILITY, need to
wenzelm@63212
  1775
use + instead of +/ etc. Moreover, exception Rat.DIVZERO has been
wenzelm@63212
  1776
superseded by General.Div.
wenzelm@63198
  1777
wenzelm@64390
  1778
* ML antiquotation @{path} is superseded by @{file}, which ensures that
wenzelm@64390
  1779
the argument is a plain file. Minor INCOMPATIBILITY.
wenzelm@64390
  1780
wenzelm@64390
  1781
* Antiquotation @{make_string} is available during Pure bootstrap --
wenzelm@64390
  1782
with approximative output quality.
wenzelm@64390
  1783
wenzelm@64390
  1784
* Low-level ML system structures (like PolyML and RunCall) are no longer
wenzelm@64390
  1785
exposed to Isabelle/ML user-space. Potential INCOMPATIBILITY.
wenzelm@64390
  1786
wenzelm@62861
  1787
* The ML function "ML" provides easy access to run-time compilation.
wenzelm@62861
  1788
This is particularly useful for conditional compilation, without
wenzelm@62861
  1789
requiring separate files.
wenzelm@62861
  1790
wenzelm@62498
  1791
* Option ML_exception_debugger controls detailed exception trace via the
wenzelm@62498
  1792
Poly/ML debugger. Relevant ML modules need to be compiled beforehand
wenzelm@62498
  1793
with ML_file_debug, or with ML_file and option ML_debugger enabled. Note
wenzelm@62498
  1794
debugger information requires consirable time and space: main
wenzelm@62498
  1795
Isabelle/HOL with full debugger support may need ML_system_64.
wenzelm@62498
  1796
wenzelm@62514
  1797
* Local_Theory.restore has been renamed to Local_Theory.reset to
wenzelm@62514
  1798
emphasize its disruptive impact on the cumulative context, notably the
wenzelm@62514
  1799
scope of 'private' or 'qualified' names. Note that Local_Theory.reset is
wenzelm@62514
  1800
only appropriate when targets are managed, e.g. starting from a global
wenzelm@62514
  1801
theory and returning to it. Regular definitional packages should use
wenzelm@62514
  1802
balanced blocks of Local_Theory.open_target versus
wenzelm@62514
  1803
Local_Theory.close_target instead. Rare INCOMPATIBILITY.
wenzelm@62514
  1804
wenzelm@62519
  1805
* Structure TimeLimit (originally from the SML/NJ library) has been
wenzelm@62519
  1806
replaced by structure Timeout, with slightly different signature.
wenzelm@62519
  1807
INCOMPATIBILITY.
wenzelm@62519
  1808
wenzelm@62551
  1809
* Discontinued cd and pwd operations, which are not well-defined in a
wenzelm@62551
  1810
multi-threaded environment. Note that files are usually located
wenzelm@62551
  1811
relatively to the master directory of a theory (see also
wenzelm@62551
  1812
File.full_path). Potential INCOMPATIBILITY.
wenzelm@62551
  1813
wenzelm@63352
  1814
* Binding.empty_atts supersedes Thm.empty_binding and
wenzelm@63352
  1815
Attrib.empty_binding. Minor INCOMPATIBILITY.
wenzelm@63352
  1816
wenzelm@62498
  1817
wenzelm@62354
  1818
*** System ***
wenzelm@62354
  1819
wenzelm@64390
  1820
* SML/NJ and old versions of Poly/ML are no longer supported.
wenzelm@64390
  1821
wenzelm@64390
  1822
* Poly/ML heaps now follow the hierarchy of sessions, and thus require
wenzelm@64390
  1823
much less disk space.
wenzelm@63226
  1824
wenzelm@62591
  1825
* The Isabelle ML process is now managed directly by Isabelle/Scala, and
wenzelm@62591
  1826
shell scripts merely provide optional command-line access. In
wenzelm@62591
  1827
particular:
wenzelm@62591
  1828
wenzelm@62591
  1829
  . Scala module ML_Process to connect to the raw ML process,
wenzelm@62591
  1830
    with interaction via stdin/stdout/stderr or in batch mode;
wenzelm@62591
  1831
  . command-line tool "isabelle console" as interactive wrapper;
wenzelm@62591
  1832
  . command-line tool "isabelle process" as batch mode wrapper.
wenzelm@62588
  1833
wenzelm@62588
  1834
* The executable "isabelle_process" has been discontinued. Tools and
wenzelm@62588
  1835
prover front-ends should use ML_Process or Isabelle_Process in
wenzelm@62591
  1836
Isabelle/Scala. INCOMPATIBILITY.
wenzelm@62588
  1837
wenzelm@62588
  1838
* New command-line tool "isabelle process" supports ML evaluation of
wenzelm@62588
  1839
literal expressions (option -e) or files (option -f) in the context of a
wenzelm@62588
  1840
given heap image. Errors lead to premature exit of the ML process with
wenzelm@62588
  1841
return code 1.
wenzelm@62588
  1842
wenzelm@64390
  1843
* The command-line tool "isabelle build" supports option -N for cyclic
wenzelm@64390
  1844
shuffling of NUMA CPU nodes. This may help performance tuning on Linux
wenzelm@64390
  1845
servers with separate CPU/memory modules.
wenzelm@64390
  1846
wenzelm@64390
  1847
* System option "threads" (for the size of the Isabelle/ML thread farm)
wenzelm@64390
  1848
is also passed to the underlying ML runtime system as --gcthreads,
wenzelm@64274
  1849
unless there is already a default provided via ML_OPTIONS settings.
wenzelm@64274
  1850
wenzelm@63827
  1851
* System option "checkpoint" helps to fine-tune the global heap space
wenzelm@63827
  1852
management of isabelle build. This is relevant for big sessions that may
wenzelm@63827
  1853
exhaust the small 32-bit address space of the ML process (which is used
wenzelm@63827
  1854
by default).
wenzelm@63827
  1855
wenzelm@64308
  1856
* System option "profiling" specifies the mode for global ML profiling
wenzelm@64342
  1857
in "isabelle build". Possible values are "time", "allocations". The
wenzelm@64342
  1858
command-line tool "isabelle profiling_report" helps to digest the
wenzelm@64342
  1859
resulting log files.
wenzelm@64308
  1860
wenzelm@63986
  1861
* System option "ML_process_policy" specifies an optional command prefix
wenzelm@63986
  1862
for the underlying ML process, e.g. to control CPU affinity on
wenzelm@63987
  1863
multiprocessor systems. The "isabelle jedit" tool allows to override the
wenzelm@63987
  1864
implicit default via option -p.
wenzelm@63986
  1865
wenzelm@64390
  1866
* Command-line tool "isabelle console" provides option -r to help to
wenzelm@64390
  1867
bootstrapping Isabelle/Pure interactively.
wenzelm@64390
  1868
wenzelm@64390
  1869
* Command-line tool "isabelle yxml" has been discontinued.
wenzelm@64390
  1870
INCOMPATIBILITY, use operations from the modules "XML" and "YXML" in
wenzelm@64390
  1871
Isabelle/ML or Isabelle/Scala.
wenzelm@64390
  1872
wenzelm@64390
  1873
* Many Isabelle tools that require a Java runtime system refer to the
wenzelm@64390
  1874
settings ISABELLE_TOOL_JAVA_OPTIONS32 / ISABELLE_TOOL_JAVA_OPTIONS64,
wenzelm@64390
  1875
depending on the underlying platform. The settings for "isabelle build"
wenzelm@64390
  1876
ISABELLE_BUILD_JAVA_OPTIONS32 / ISABELLE_BUILD_JAVA_OPTIONS64 have been
wenzelm@64390
  1877
discontinued. Potential INCOMPATIBILITY.
wenzelm@64390
  1878
wenzelm@64390
  1879
* The Isabelle system environment always ensures that the main
wenzelm@64390
  1880
executables are found within the shell search $PATH: "isabelle" and
wenzelm@64390
  1881
"isabelle_scala_script".
wenzelm@64390
  1882
wenzelm@64390
  1883
* Isabelle tools may consist of .scala files: the Scala compiler is
wenzelm@64390
  1884
invoked on the spot. The source needs to define some object that extends
wenzelm@64390
  1885
Isabelle_Tool.Body.
wenzelm@64390
  1886
wenzelm@64390
  1887
* File.bash_string, File.bash_path etc. represent Isabelle/ML and
wenzelm@64390
  1888
Isabelle/Scala strings authentically within GNU bash. This is useful to
wenzelm@64390
  1889
produce robust shell scripts under program control, without worrying
wenzelm@64390
  1890
about spaces or special characters. Note that user output works via
wenzelm@64390
  1891
Path.print (ML) or Path.toString (Scala). INCOMPATIBILITY, the old (and
wenzelm@64390
  1892
less versatile) operations File.shell_quote, File.shell_path etc. have
wenzelm@64390
  1893
been discontinued.
wenzelm@64390
  1894
wenzelm@63995
  1895
* The isabelle_java executable allows to run a Java process within the
wenzelm@63995
  1896
name space of Java and Scala components that are bundled with Isabelle,
wenzelm@63995
  1897
but without the Isabelle settings environment.
wenzelm@63995
  1898
wenzelm@64390
  1899
* Isabelle/Scala: the SSH module supports ssh and sftp connections, for
wenzelm@64390
  1900
remote command-execution and file-system access. This resembles
wenzelm@64390
  1901
operations from module File and Isabelle_System to some extent. Note
wenzelm@64390
  1902
that Path specifications need to be resolved remotely via
wenzelm@64390
  1903
ssh.remote_path instead of File.standard_path: the implicit process
wenzelm@64390
  1904
environment is different, Isabelle settings are not available remotely.
wenzelm@64390
  1905
wenzelm@64390
  1906
* Isabelle/Scala: the Mercurial module supports repositories via the
wenzelm@64390
  1907
regular hg command-line interface. The repositroy clone and working
wenzelm@64390
  1908
directory may reside on a local or remote file-system (via ssh
wenzelm@64390
  1909
connection).
wenzelm@64265
  1910
wenzelm@62354
  1911
wenzelm@62354
  1912
wenzelm@62031
  1913
New in Isabelle2016 (February 2016)
wenzelm@62016
  1914
-----------------------------------
wenzelm@60138
  1915
wenzelm@61337
  1916
*** General ***
wenzelm@61337
  1917
wenzelm@62168
  1918
* Eisbach is now based on Pure instead of HOL. Objects-logics may import
wenzelm@62168
  1919
either the theory ~~/src/HOL/Eisbach/Eisbach (for HOL etc.) or
wenzelm@62168
  1920
~~/src/HOL/Eisbach/Eisbach_Old_Appl_Syntax (for FOL, ZF etc.). Note that
wenzelm@62168
  1921
the HOL-Eisbach session located in ~~/src/HOL/Eisbach/ contains further
wenzelm@62168
  1922
examples that do require HOL.
wenzelm@62168
  1923
wenzelm@62157
  1924
* Better resource usage on all platforms (Linux, Windows, Mac OS X) for
wenzelm@62157
  1925
both Isabelle/ML and Isabelle/Scala.  Slightly reduced heap space usage.
wenzelm@62157
  1926
wenzelm@62017
  1927
* Former "xsymbols" syntax with Isabelle symbols is used by default,
wenzelm@62017
  1928
without any special print mode. Important ASCII replacement syntax
wenzelm@62017
  1929
remains available under print mode "ASCII", but less important syntax
wenzelm@62017
  1930
has been removed (see below).
wenzelm@62017
  1931
wenzelm@62109
  1932
* Support for more arrow symbols, with rendering in LaTeX and Isabelle
wenzelm@62109
  1933
fonts: \<Lleftarrow> \<Rrightarrow> \<longlongleftarrow> \<longlongrightarrow> \<longlonglongleftarrow> \<longlonglongrightarrow>.
wenzelm@62017
  1934
wenzelm@62108
  1935
* Special notation \<struct> for the first implicit 'structure' in the
wenzelm@62108
  1936
context has been discontinued. Rare INCOMPATIBILITY, use explicit
wenzelm@62108
  1937
structure name instead, notably in indexed notation with block-subscript
wenzelm@62108
  1938
(e.g. \<odot>\<^bsub>A\<^esub>).
wenzelm@62108
  1939
wenzelm@62108
  1940
* The glyph for \<diamond> in the IsabelleText font now corresponds better to its
wenzelm@62108
  1941
counterpart \<box> as quantifier-like symbol. A small diamond is available as
wenzelm@62108
  1942
\<diamondop>; the old symbol \<struct> loses this rendering and any special
wenzelm@62108
  1943
meaning.
wenzelm@62108
  1944
wenzelm@62017
  1945
* Syntax for formal comments "-- text" now also supports the symbolic
wenzelm@62017
  1946
form "\<comment> text". Command-line tool "isabelle update_cartouches -c" helps
wenzelm@62017
  1947
to update old sources.
wenzelm@62017
  1948
wenzelm@61337
  1949
* Toplevel theorem statements have been simplified as follows:
wenzelm@61337
  1950
wenzelm@61337
  1951
  theorems             ~>  lemmas
wenzelm@61337
  1952
  schematic_lemma      ~>  schematic_goal
wenzelm@61337
  1953
  schematic_theorem    ~>  schematic_goal
wenzelm@61337
  1954
  schematic_corollary  ~>  schematic_goal
wenzelm@61337
  1955
wenzelm@61337
  1956
Command-line tool "isabelle update_theorems" updates theory sources
wenzelm@61337
  1957
accordingly.
wenzelm@61337
  1958
wenzelm@61338
  1959
* Toplevel theorem statement 'proposition' is another alias for
wenzelm@61338
  1960
'theorem'.
wenzelm@61338
  1961
wenzelm@62169
  1962
* The old 'defs' command has been removed (legacy since Isabelle2014).
wenzelm@62169
  1963
INCOMPATIBILITY, use regular 'definition' instead. Overloaded and/or
wenzelm@62169
  1964
deferred definitions require a surrounding 'overloading' block.
wenzelm@62169
  1965
wenzelm@61337
  1966
wenzelm@60610
  1967
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@60610
  1968
wenzelm@60986
  1969
* IDE support for the source-level debugger of Poly/ML, to work with
wenzelm@62253
  1970
Isabelle/ML and official Standard ML. Option "ML_debugger" and commands
wenzelm@62253
  1971
'ML_file_debug', 'ML_file_no_debug', 'SML_file_debug',
wenzelm@62253
  1972
'SML_file_no_debug' control compilation of sources with or without
wenzelm@62253
  1973
debugging information. The Debugger panel allows to set breakpoints (via
wenzelm@62253
  1974
context menu), step through stopped threads, evaluate local ML
wenzelm@62253
  1975
expressions etc. At least one Debugger view needs to be active to have
wenzelm@62253
  1976
any effect on the running ML program.
wenzelm@60984
  1977
wenzelm@61803
  1978
* The State panel manages explicit proof state output, with dynamic
wenzelm@61803
  1979
auto-update according to cursor movement. Alternatively, the jEdit
wenzelm@61803
  1980
action "isabelle.update-state" (shortcut S+ENTER) triggers manual
wenzelm@61803
  1981
update.
wenzelm@61729
  1982
wenzelm@61729
  1983
* The Output panel no longer shows proof state output by default, to
wenzelm@61729
  1984
avoid GUI overcrowding. INCOMPATIBILITY, use the State panel instead or
wenzelm@61729
  1985
enable option "editor_output_state".
wenzelm@61215
  1986
wenzelm@61803
  1987
* The text overview column (status of errors, warnings etc.) is updated
wenzelm@61803
  1988
asynchronously, leading to much better editor reactivity. Moreover, the
wenzelm@61803
  1989
full document node content is taken into account. The width of the
wenzelm@61803
  1990
column is scaled according to the main text area font, for improved
wenzelm@61803
  1991
visibility.
wenzelm@61803
  1992
wenzelm@61803
  1993
* The main text area no longer changes its color hue in outdated
wenzelm@61803
  1994
situations. The text overview column takes over the role to indicate
wenzelm@61803
  1995
unfinished edits in the PIDE pipeline. This avoids flashing text display
wenzelm@61803
  1996
due to ad-hoc updates by auxiliary GUI components, such as the State
wenzelm@61803
  1997
panel.
wenzelm@61803
  1998
wenzelm@62254
  1999
* Slightly improved scheduling for urgent print tasks (e.g. command
wenzelm@62254
  2000
state output, interactive queries) wrt. long-running background tasks.
wenzelm@62017
  2001
wenzelm@62017
  2002
* Completion of symbols via prefix of \<name> or \<^name> or \name is
wenzelm@62017
  2003
always possible, independently of the language context. It is never
wenzelm@62017
  2004
implicit: a popup will show up unconditionally.
wenzelm@62017
  2005
wenzelm@62017
  2006
* Additional abbreviations for syntactic completion may be specified in
wenzelm@62017
  2007
$ISABELLE_HOME/etc/abbrevs and $ISABELLE_HOME_USER/etc/abbrevs, with
wenzelm@62017
  2008
support for simple templates using ASCII 007 (bell) as placeholder.
wenzelm@62017
  2009
wenzelm@62234
  2010
* Symbols \<oplus>, \<Oplus>, \<otimes>, \<Otimes>, \<odot>, \<Odot>, \<ominus>, \<oslash> no longer provide abbreviations for
wenzelm@62234
  2011
completion like "+o", "*o", ".o" etc. -- due to conflicts with other
wenzelm@62234
  2012
ASCII syntax. INCOMPATIBILITY, use plain backslash-completion or define
wenzelm@62234
  2013
suitable abbreviations in $ISABELLE_HOME_USER/etc/abbrevs.
wenzelm@62234
  2014
wenzelm@61483
  2015
* Action "isabelle-emph" (with keyboard shortcut C+e LEFT) controls
wenzelm@61483
  2016
emphasized text style; the effect is visible in document output, not in
wenzelm@61483
  2017
the editor.
wenzelm@61483
  2018
wenzelm@61483
  2019
* Action "isabelle-reset" now uses keyboard shortcut C+e BACK_SPACE,
wenzelm@61483
  2020
instead of former C+e LEFT.
wenzelm@61483
  2021
wenzelm@61512
  2022
* The command-line tool "isabelle jedit" and the isabelle.Main
wenzelm@62027
  2023
application wrapper treat the default $USER_HOME/Scratch.thy more
wenzelm@61512
  2024
uniformly, and allow the dummy file argument ":" to open an empty buffer
wenzelm@61512
  2025
instead.
wenzelm@61512
  2026
wenzelm@62017
  2027
* New command-line tool "isabelle jedit_client" allows to connect to an
wenzelm@62017
  2028
already running Isabelle/jEdit process. This achieves the effect of
wenzelm@62017
  2029
single-instance applications seen on common GUI desktops.
wenzelm@62017
  2030
wenzelm@61529
  2031
* The default look-and-feel for Linux is the traditional "Metal", which
wenzelm@61529
  2032
works better with GUI scaling for very high-resolution displays (e.g.
wenzelm@61529
  2033
4K). Moreover, it is generally more robust than "Nimbus".
wenzelm@61529
  2034
wenzelm@62163
  2035
* Update to jedit-5.3.0, with improved GUI scaling and support of
wenzelm@62163
  2036
high-resolution displays (e.g. 4K).
wenzelm@62163
  2037
wenzelm@62034
  2038
* The main Isabelle executable is managed as single-instance Desktop
wenzelm@62034
  2039
application uniformly on all platforms: Linux, Windows, Mac OS X.
wenzelm@62034
  2040
wenzelm@60610
  2041
wenzelm@61405
  2042
*** Document preparation ***
wenzelm@61405
  2043
wenzelm@62017
  2044
* Commands 'paragraph' and 'subparagraph' provide additional section
wenzelm@62017
  2045
headings. Thus there are 6 levels of standard headings, as in HTML.
wenzelm@62017
  2046
wenzelm@62017
  2047
* Command 'text_raw' has been clarified: input text is processed as in
wenzelm@62017
  2048
'text' (with antiquotations and control symbols). The key difference is
wenzelm@62017
  2049
the lack of the surrounding isabelle markup environment in output.
wenzelm@62017
  2050
wenzelm@62017
  2051
* Text is structured in paragraphs and nested lists, using notation that
wenzelm@62017
  2052
is similar to Markdown. The control symbols for list items are as
wenzelm@62017
  2053
follows:
wenzelm@62017
  2054
wenzelm@62017
  2055
  \<^item>  itemize
wenzelm@62017
  2056
  \<^enum>  enumerate
wenzelm@62017
  2057
  \<^descr>  description
wenzelm@62017
  2058
wenzelm@61491
  2059
* There is a new short form for antiquotations with a single argument
wenzelm@61491
  2060
that is a cartouche: \<^name>\<open>...\<close> is equivalent to @{name \<open>...\<close>} and
wenzelm@61595
  2061
\<open>...\<close> without control symbol is equivalent to @{cartouche \<open>...\<close>}.
wenzelm@61595
  2062
\<^name> without following cartouche is equivalent to @{name}. The
wenzelm@61501
  2063
standard Isabelle fonts provide glyphs to render important control
wenzelm@61501
  2064
symbols, e.g. "\<^verbatim>", "\<^emph>", "\<^bold>".
wenzelm@61491
  2065
wenzelm@61595
  2066
* Antiquotations @{noindent}, @{smallskip}, @{medskip}, @{bigskip} with
wenzelm@61595
  2067
corresponding control symbols \<^noindent>, \<^smallskip>, \<^medskip>, \<^bigskip> specify spacing formally, using
wenzelm@61595
  2068
standard LaTeX macros of the same names.
wenzelm@61595
  2069
wenzelm@61491
  2070
* Antiquotation @{cartouche} in Isabelle/Pure is the same as @{text}.
wenzelm@61491
  2071
Consequently, \<open>...\<close> without any decoration prints literal quasi-formal
wenzelm@61492
  2072
text. Command-line tool "isabelle update_cartouches -t" helps to update
wenzelm@61492
  2073
old sources, by approximative patching of the content of string and
wenzelm@61492
  2074
cartouche tokens seen in theory sources.
wenzelm@61491
  2075
wenzelm@61491
  2076
* The @{text} antiquotation now ignores the antiquotation option
wenzelm@61491
  2077
"source". The given text content is output unconditionally, without any
wenzelm@61491
  2078
surrounding quotes etc. Subtle INCOMPATIBILITY, put quotes into the
wenzelm@61494
  2079
argument where they are really intended, e.g. @{text \<open>"foo"\<close>}. Initial
wenzelm@61494
  2080
or terminal spaces are ignored.
wenzelm@61491
  2081
wenzelm@62017
  2082
* Antiquotations @{emph} and @{bold} output LaTeX source recursively,
wenzelm@62017
  2083
adding appropriate text style markup. These may be used in the short
wenzelm@62017
  2084
form \<^emph>\<open>...\<close> and \<^bold>\<open>...\<close>.
wenzelm@62017
  2085
wenzelm@62017
  2086
* Document antiquotation @{footnote} outputs LaTeX source recursively,
wenzelm@62017
  2087
marked as \footnote{}. This may be used in the short form \<^footnote>\<open>...\<close>.
wenzelm@62017
  2088
wenzelm@62017
  2089
* Antiquotation @{verbatim [display]} supports option "indent".
wenzelm@62017
  2090
wenzelm@62017
  2091
* Antiquotation @{theory_text} prints uninterpreted theory source text
wenzelm@62231
  2092
(Isar outer syntax with command keywords etc.). This may be used in the
wenzelm@62231
  2093
short form \<^theory_text>\<open>...\<close>. @{theory_text [display]} supports option "indent".
wenzelm@62017
  2094
wenzelm@62017
  2095
* Antiquotation @{doc ENTRY} provides a reference to the given
wenzelm@62017
  2096
documentation, with a hyperlink in the Prover IDE.
wenzelm@62017
  2097
wenzelm@62017
  2098
* Antiquotations @{command}, @{method}, @{attribute} print checked
wenzelm@62017
  2099
entities of the Isar language.
wenzelm@62017
  2100
wenzelm@61471
  2101
* HTML presentation uses the standard IsabelleText font and Unicode
wenzelm@61471
  2102
rendering of Isabelle symbols like Isabelle/Scala/jEdit.  The former
wenzelm@61488
  2103
print mode "HTML" loses its special meaning.
wenzelm@61471
  2104
wenzelm@61405
  2105
wenzelm@60406
  2106
*** Isar ***
wenzelm@60406
  2107
wenzelm@62205
  2108
* Local goals ('have', 'show', 'hence', 'thus') allow structured rule
wenzelm@62205
  2109
statements like fixes/assumes/shows in theorem specifications, but the
wenzelm@62205
  2110
notation is postfix with keywords 'if' (or 'when') and 'for'. For
wenzelm@60555
  2111
example:
wenzelm@60414
  2112
wenzelm@60414
  2113
  have result: "C x y"
wenzelm@60414
  2114
    if "A x" and "B y"
wenzelm@60414
  2115
    for x :: 'a and y :: 'a
wenzelm@60414
  2116
    <proof>
wenzelm@60414
  2117
wenzelm@60449
  2118
The local assumptions are bound to the name "that". The result is
wenzelm@60449
  2119
exported from context of the statement as usual. The above roughly
wenzelm@60414
  2120
corresponds to a raw proof block like this:
wenzelm@60414
  2121
wenzelm@60414
  2122
  {
wenzelm@60414
  2123
    fix x :: 'a and y :: 'a
wenzelm@60449
  2124
    assume that: "A x" "B y"
wenzelm@60414
  2125
    have "C x y" <proof>
wenzelm@60414
  2126
  }
wenzelm@60414
  2127
  note result = this
wenzelm@60406
  2128
wenzelm@60555
  2129
The keyword 'when' may be used instead of 'if', to indicate 'presume'
wenzelm@60555
  2130
instead of 'assume' above.
wenzelm@60555
  2131
wenzelm@61733
  2132
* Assumptions ('assume', 'presume') allow structured rule statements
wenzelm@61733
  2133
using 'if' and 'for', similar to 'have' etc. above. For example:
wenzelm@61658
  2134
wenzelm@61658
  2135
  assume result: "C x y"
wenzelm@61658
  2136
    if "A x" and "B y"
wenzelm@61658
  2137
    for x :: 'a and y :: 'a
wenzelm@61658
  2138
wenzelm@61658
  2139
This assumes "\<And>x y::'a. A x \<Longrightarrow> B y \<Longrightarrow> C x y" and produces a general
wenzelm@61658
  2140
result as usual: "A ?x \<Longrightarrow> B ?y \<Longrightarrow> C ?x ?y".
wenzelm@61658
  2141
wenzelm@61658
  2142
Vacuous quantification in assumptions is omitted, i.e. a for-context
wenzelm@61658
  2143
only effects propositions according to actual use of variables. For
wenzelm@61658
  2144
example:
wenzelm@61658
  2145
wenzelm@61658
  2146
  assume "A x" and "B y" for x and y
wenzelm@61658
  2147
wenzelm@61658
  2148
is equivalent to:
wenzelm@61658
  2149
wenzelm@61658
  2150
  assume "\<And>x. A x" and "\<And>y. B y"
wenzelm@61658
  2151
wenzelm@60595
  2152
* The meaning of 'show' with Pure rule statements has changed: premises
wenzelm@60595
  2153
are treated in the sense of 'assume', instead of 'presume'. This means,
wenzelm@62205
  2154
a goal like "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" can be solved completely as
wenzelm@62205
  2155
follows:
wenzelm@60595
  2156
wenzelm@60595
  2157
  show "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x"
wenzelm@60595
  2158
wenzelm@60595
  2159
or:
wenzelm@60595
  2160
wenzelm@60595
  2161
  show "C x" if "A x" "B x" for x
wenzelm@60595
  2162
wenzelm@60595
  2163
Rare INCOMPATIBILITY, the old behaviour may be recovered as follows:
wenzelm@60595
  2164
wenzelm@60595
  2165
  show "C x" when "A x" "B x" for x
wenzelm@60595
  2166
wenzelm@60459
  2167
* New command 'consider' states rules for generalized elimination and
wenzelm@60459
  2168
case splitting. This is like a toplevel statement "theorem obtains" used
wenzelm@60459
  2169
within a proof body; or like a multi-branch 'obtain' without activation
wenzelm@60459
  2170
of the local context elements yet.
wenzelm@60459
  2171
wenzelm@60455
  2172
* Proof method "cases" allows to specify the rule as first entry of
wenzelm@60455
  2173
chained facts.  This is particularly useful with 'consider':
wenzelm@60455
  2174
wenzelm@60455
  2175
  consider (a) A | (b) B | (c) C <proof>
wenzelm@60455
  2176
  then have something
wenzelm@60455
  2177
  proof cases
wenzelm@60455
  2178
    case a
wenzelm@60455
  2179
    then show ?thesis <proof>
wenzelm@60455
  2180
  next
wenzelm@60455
  2181
    case b
wenzelm@60455
  2182
    then show ?thesis <proof>
wenzelm@60455
  2183
  next
wenzelm@60455
  2184
    case c
wenzelm@60455
  2185
    then show ?thesis <proof>
wenzelm@60455
  2186
  qed
wenzelm@60455
  2187
wenzelm@60565
  2188
* Command 'case' allows fact name and attribute specification like this:
wenzelm@60565
  2189
wenzelm@60565
  2190
  case a: (c xs)
wenzelm@60565
  2191
  case a [attributes]: (c xs)
wenzelm@60565
  2192
wenzelm@60565
  2193
Facts that are introduced by invoking the case context are uniformly
wenzelm@60565
  2194
qualified by "a"; the same name is used for the cumulative fact. The old
wenzelm@60565
  2195
form "case (c xs) [attributes]" is no longer supported. Rare
wenzelm@60565
  2196
INCOMPATIBILITY, need to adapt uses of case facts in exotic situations,
wenzelm@60565
  2197
and always put attributes in front.
wenzelm@60565
  2198
wenzelm@60618
  2199
* The standard proof method of commands 'proof' and '..' is now called
wenzelm@60618
  2200
"standard" to make semantically clear what it is; the old name "default"
wenzelm@60618
  2201
is still available as legacy for some time. Documentation now explains
wenzelm@60618
  2202
'..' more accurately as "by standard" instead of "by rule".
wenzelm@60618
  2203
wenzelm@62017
  2204
* Nesting of Isar goal structure has been clarified: the context after
wenzelm@62017
  2205
the initial backwards refinement is retained for the whole proof, within
wenzelm@62017
  2206
all its context sections (as indicated via 'next'). This is e.g.
wenzelm@62017
  2207
relevant for 'using', 'including', 'supply':
wenzelm@62017
  2208
wenzelm@62017
  2209
  have "A \<and> A" if a: A for A
wenzelm@62017
  2210
    supply [simp] = a
wenzelm@62017
  2211
  proof
wenzelm@62017
  2212
    show A by simp
wenzelm@62017
  2213
  next
wenzelm@62017
  2214
    show A by simp
wenzelm@62017
  2215
  qed
wenzelm@62017
  2216
wenzelm@62017
  2217
* Command 'obtain' binds term abbreviations (via 'is' patterns) in the
wenzelm@62017
  2218
proof body as well, abstracted over relevant parameters.
wenzelm@62017
  2219
wenzelm@62017
  2220
* Improved type-inference for theorem statement 'obtains': separate
wenzelm@62017
  2221
parameter scope for of each clause.
wenzelm@62017
  2222
wenzelm@62017
  2223
* Term abbreviations via 'is' patterns also work for schematic
wenzelm@62017
  2224
statements: result is abstracted over unknowns.
wenzelm@62017
  2225
wenzelm@60631
  2226
* Command 'subgoal' allows to impose some structure on backward
wenzelm@60631
  2227
refinements, to avoid proof scripts degenerating into long of 'apply'
wenzelm@60631
  2228
sequences. Further explanations and examples are given in the isar-ref
wenzelm@60631
  2229
manual.
wenzelm@60631
  2230
wenzelm@62017
  2231
* Command 'supply' supports fact definitions during goal refinement
wenzelm@62017
  2232
('apply' scripts).
wenzelm@62017
  2233
wenzelm@61166
  2234
* Proof method "goal_cases" turns the current subgoals into cases within
wenzelm@61166
  2235
the context; the conclusion is bound to variable ?case in each case. For
wenzelm@61166
  2236
example:
wenzelm@60617
  2237
wenzelm@60617
  2238
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x"
wenzelm@60622
  2239
  and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z"
wenzelm@61166
  2240
proof goal_cases
wenzelm@60622
  2241
  case (1 x)
wenzelm@60622
  2242
  then show ?case using \<open>A x\<close> \<open>B x\<close> sorry
wenzelm@60622
  2243
next
wenzelm@60622
  2244
  case (2 y z)
wenzelm@60622
  2245
  then show ?case using \<open>U y\<close> \<open>V z\<close> sorry
wenzelm@60622
  2246
qed
wenzelm@60622
  2247
wenzelm@60622
  2248
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x"
wenzelm@60622
  2249
  and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z"
wenzelm@61166
  2250
proof goal_cases
wenzelm@60617
  2251
  case prems: 1
wenzelm@60617
  2252
  then show ?case using prems sorry
wenzelm@60617
  2253
next
wenzelm@60617
  2254
  case prems: 2
wenzelm@60617
  2255
  then show ?case using prems sorry
wenzelm@60617
  2256
qed
wenzelm@60578
  2257
wenzelm@60581
  2258
* The undocumented feature of implicit cases goal1, goal2, goal3, etc.
wenzelm@60617
  2259
is marked as legacy, and will be removed eventually. The proof method
wenzelm@60617
  2260
"goals" achieves a similar effect within regular Isar; often it can be
wenzelm@60617
  2261
done more adequately by other means (e.g. 'consider').
wenzelm@60581
  2262
wenzelm@62017
  2263
* The vacuous fact "TERM x" may be established "by fact" or as `TERM x`
wenzelm@62017
  2264
as well, not just "by this" or "." as before.
wenzelm@60551
  2265
wenzelm@60554
  2266
* Method "sleep" succeeds after a real-time delay (in seconds). This is
wenzelm@60554
  2267
occasionally useful for demonstration and testing purposes.
wenzelm@60554
  2268
wenzelm@60406
  2269
wenzelm@60331
  2270
*** Pure ***
wenzelm@60331
  2271
wenzelm@61606
  2272
* Qualifiers in locale expressions default to mandatory ('!') regardless
wenzelm@61606
  2273
of the command. Previously, for 'locale' and 'sublocale' the default was
wenzelm@61606
  2274
optional ('?'). The old synatx '!' has been discontinued.
wenzelm@61606
  2275
INCOMPATIBILITY, remove '!' and add '?' as required.
ballarin@61565
  2276
ballarin@61566
  2277
* Keyword 'rewrites' identifies rewrite morphisms in interpretation
wenzelm@62017
  2278
commands. Previously, the keyword was 'where'. INCOMPATIBILITY.
ballarin@61566
  2279
ballarin@61701
  2280
* More gentle suppression of syntax along locale morphisms while
wenzelm@62017
  2281
printing terms. Previously 'abbreviation' and 'notation' declarations
wenzelm@62017
  2282
would be suppressed for morphisms except term identity. Now
ballarin@61701
  2283
'abbreviation' is also kept for morphims that only change the involved
wenzelm@62017
  2284
parameters, and only 'notation' is suppressed. This can be of great help
wenzelm@62017
  2285
when working with complex locale hierarchies, because proof states are
wenzelm@62017
  2286
displayed much more succinctly. It also means that only notation needs
wenzelm@62017
  2287
to be redeclared if desired, as illustrated by this example:
ballarin@61701
  2288
ballarin@61701
  2289
  locale struct = fixes composition :: "'a => 'a => 'a" (infixl "\<cdot>" 65)
ballarin@61701
  2290
  begin
ballarin@61701
  2291
    definition derived (infixl "\<odot>" 65) where ...
ballarin@61701
  2292
  end
ballarin@61701
  2293
ballarin@61701
  2294
  locale morphism =
ballarin@61701
  2295
    left: struct composition + right: struct composition'
ballarin@61701
  2296
    for composition (infix "\<cdot>" 65) and composition' (infix "\<cdot>''" 65)
ballarin@61701
  2297
  begin
ballarin@61701
  2298
    notation right.derived ("\<odot>''")
ballarin@61701
  2299
  end
ballarin@61701
  2300
wenzelm@61895
  2301
* Command 'global_interpretation' issues interpretations into global
wenzelm@61895
  2302
theories, with optional rewrite definitions following keyword 'defines'.
wenzelm@61895
  2303
wenzelm@61895
  2304
* Command 'sublocale' accepts optional rewrite definitions after keyword
haftmann@61675
  2305
'defines'.
haftmann@61675
  2306
wenzelm@61895
  2307
* Command 'permanent_interpretation' has been discontinued. Use
wenzelm@61895
  2308
'global_interpretation' or 'sublocale' instead. INCOMPATIBILITY.
haftmann@61670
  2309
wenzelm@61252
  2310
* Command 'print_definitions' prints dependencies of definitional
wenzelm@61252
  2311
specifications. This functionality used to be part of 'print_theory'.
wenzelm@61252
  2312
wenzelm@60331
  2313
* Configuration option rule_insts_schematic has been discontinued
wenzelm@62017
  2314
(intermediate legacy feature in Isabelle2015). INCOMPATIBILITY.
wenzelm@60331
  2315
wenzelm@62205
  2316
* Abbreviations in type classes now carry proper sort constraint. Rare
wenzelm@62205
  2317
INCOMPATIBILITY in situations where the previous misbehaviour has been
wenzelm@62205
  2318
exploited.
haftmann@60347
  2319
haftmann@60347
  2320
* Refinement of user-space type system in type classes: pseudo-local
wenzelm@62205
  2321
operations behave more similar to abbreviations. Potential
haftmann@60347
  2322
INCOMPATIBILITY in exotic situations.
haftmann@60347
  2323
haftmann@60347
  2324
nipkow@60171
  2325
*** HOL ***
nipkow@60171
  2326
wenzelm@62017
  2327
* The 'typedef' command has been upgraded from a partially checked
wenzelm@62017
  2328
"axiomatization", to a full definitional specification that takes the
wenzelm@62017
  2329
global collection of overloaded constant / type definitions into
wenzelm@62017
  2330
account. Type definitions with open dependencies on overloaded
wenzelm@62017
  2331
definitions need to be specified as "typedef (overloaded)". This
wenzelm@62017
  2332
provides extra robustness in theory construction. Rare INCOMPATIBILITY.
wenzelm@62017
  2333
wenzelm@62017
  2334
* Qualification of various formal entities in the libraries is done more
wenzelm@62017
  2335
uniformly via "context begin qualified definition ... end" instead of
wenzelm@62017
  2336
old-style "hide_const (open) ...". Consequently, both the defined
wenzelm@62017
  2337
constant and its defining fact become qualified, e.g. Option.is_none and
wenzelm@62017
  2338
Option.is_none_def. Occasional INCOMPATIBILITY in applications.
wenzelm@62017
  2339
wenzelm@62017
  2340
* Some old and rarely used ASCII replacement syntax has been removed.
wenzelm@62017
  2341
INCOMPATIBILITY, standard syntax with symbols should be used instead.
wenzelm@62017
  2342
The subsequent commands help to reproduce the old forms, e.g. to
wenzelm@62017
  2343
simplify porting old theories:
wenzelm@62017
  2344
wenzelm@62017
  2345
  notation iff  (infixr "<->" 25)
wenzelm@62017
  2346
wenzelm@62017
  2347
  notation Times  (infixr "<*>" 80)
wenzelm@62017
  2348
wenzelm@62017
  2349
  type_notation Map.map  (infixr "~=>" 0)
wenzelm@62017
  2350
  notation Map.map_comp  (infixl "o'_m" 55)
wenzelm@62017
  2351
wenzelm@62017
  2352
  type_notation FinFun.finfun ("(_ =>f /_)" [22, 21] 21)
wenzelm@62017
  2353
wenzelm@62017
  2354
  notation FuncSet.funcset  (infixr "->" 60)
wenzelm@62017
  2355
  notation FuncSet.extensional_funcset  (infixr "->\<^sub>E" 60)
wenzelm@62017
  2356
wenzelm@62017
  2357
  notation Omega_Words_Fun.conc (infixr "conc" 65)
wenzelm@62017
  2358
wenzelm@62017
  2359
  notation Preorder.equiv ("op ~~")
wenzelm@62017
  2360
    and Preorder.equiv ("(_/ ~~ _)" [51, 51] 50)
wenzelm@62017
  2361
wenzelm@62017
  2362
  notation (in topological_space) tendsto (infixr "--->" 55)
wenzelm@62017
  2363
  notation (in topological_space) LIMSEQ ("((_)/ ----> (_))" [60, 60] 60)
wenzelm@62017
  2364
  notation LIM ("((_)/ -- (_)/ --> (_))" [60, 0, 60] 60)
wenzelm@62017
  2365
wenzelm@62017
  2366
  notation NSA.approx (infixl "@=" 50)
wenzelm@62017
  2367
  notation NSLIMSEQ ("((_)/ ----NS> (_))" [60, 60] 60)
wenzelm@62017
  2368
  notation NSLIM ("((_)/ -- (_)/ --NS> (_))" [60, 0, 60] 60)
wenzelm@62017
  2369
wenzelm@62017
  2370
* The alternative notation "\<Colon>" for type and sort constraints has been
wenzelm@62017
  2371
removed: in LaTeX document output it looks the same as "::".
wenzelm@62017
  2372
INCOMPATIBILITY, use plain "::" instead.
wenzelm@62017
  2373
wenzelm@62017
  2374
* Commands 'inductive' and 'inductive_set' work better when names for
wenzelm@62017
  2375
intro rules are omitted: the "cases" and "induct" rules no longer
wenzelm@62017
  2376
declare empty case_names, but no case_names at all. This allows to use
wenzelm@62017
  2377
numbered cases in proofs, without requiring method "goal_cases".
wenzelm@62017
  2378
wenzelm@62017
  2379
* Inductive definitions ('inductive', 'coinductive', etc.) expose
wenzelm@62017
  2380
low-level facts of the internal construction only if the option
wenzelm@62093
  2381
"inductive_internals" is enabled. This refers to the internal predicate
wenzelm@62017
  2382
definition and its monotonicity result. Rare INCOMPATIBILITY.
wenzelm@62017
  2383
wenzelm@62017
  2384
* Recursive function definitions ('fun', 'function', 'partial_function')
wenzelm@62017
  2385
expose low-level facts of the internal construction only if the option
wenzelm@62205
  2386
"function_internals" is enabled. Its internal inductive definition is
wenzelm@62205
  2387
also subject to "inductive_internals". Rare INCOMPATIBILITY.
wenzelm@62093
  2388
wenzelm@62093
  2389
* BNF datatypes ('datatype', 'codatatype', etc.) expose low-level facts
wenzelm@62093
  2390
of the internal construction only if the option "bnf_internals" is
wenzelm@62093
  2391
enabled. This supersedes the former option "bnf_note_all". Rare
wenzelm@62093
  2392
INCOMPATIBILITY.
wenzelm@62017
  2393
wenzelm@62017
  2394
* Combinator to represent case distinction on products is named
wenzelm@62017
  2395
"case_prod", uniformly, discontinuing any input aliasses. Very popular
wenzelm@62017
  2396
theorem aliasses have been retained.
wenzelm@62017
  2397
haftmann@61424
  2398
Consolidated facts:
haftmann@61424
  2399
  PairE ~> prod.exhaust
haftmann@61424
  2400
  Pair_eq ~> prod.inject
haftmann@61424
  2401
  pair_collapse ~> prod.collapse
haftmann@61424
  2402
  Pair_fst_snd_eq ~> prod_eq_iff
haftmann@61424
  2403
  split_twice ~> prod.case_distrib
haftmann@61424
  2404
  split_weak_cong ~> prod.case_cong_weak
haftmann@61424
  2405
  split_split ~> prod.split
haftmann@61424
  2406
  split_split_asm ~> prod.split_asm
haftmann@61424
  2407
  splitI ~> case_prodI
haftmann@61424
  2408
  splitD ~> case_prodD
haftmann@61424
  2409
  splitI2 ~> case_prodI2
haftmann@61424
  2410
  splitI2' ~> case_prodI2'
haftmann@61424
  2411
  splitE ~> case_prodE
haftmann@61424
  2412
  splitE' ~> case_prodE'
haftmann@61424
  2413
  split_pair ~> case_prod_Pair
haftmann@61424
  2414
  split_eta ~> case_prod_eta
haftmann@61424
  2415
  split_comp ~> case_prod_comp
haftmann@61424
  2416
  mem_splitI ~> mem_case_prodI
haftmann@61424
  2417
  mem_splitI2 ~> mem_case_prodI2
haftmann@61424
  2418
  mem_splitE ~> mem_case_prodE
haftmann@61424
  2419
  The_split ~> The_case_prod
haftmann@61424
  2420
  cond_split_eta ~> cond_case_prod_eta
haftmann@61424
  2421
  Collect_split_in_rel_leE ~> Collect_case_prod_in_rel_leE
haftmann@61424
  2422
  Collect_split_in_rel_leI ~> Collect_case_prod_in_rel_leI
haftmann@61424
  2423
  in_rel_Collect_split_eq ~> in_rel_Collect_case_prod_eq
haftmann@61424
  2424
  Collect_split_Grp_eqD ~> Collect_case_prod_Grp_eqD
haftmann@61424
  2425
  Collect_split_Grp_inD ~> Collect_case_prod_Grp_in
haftmann@61424
  2426
  Domain_Collect_split ~> Domain_Collect_case_prod
haftmann@61424
  2427
  Image_Collect_split ~> Image_Collect_case_prod
haftmann@61424
  2428
  Range_Collect_split ~> Range_Collect_case_prod
haftmann@61424
  2429
  Eps_split ~> Eps_case_prod
haftmann@61424
  2430
  Eps_split_eq ~> Eps_case_prod_eq
haftmann@61424
  2431
  split_rsp ~> case_prod_rsp
haftmann@61424
  2432
  curry_split ~> curry_case_prod
haftmann@61424
  2433
  split_curry ~> case_prod_curry
wenzelm@62017
  2434
haftmann@61424
  2435
Changes in structure HOLogic:
haftmann@61424
  2436
  split_const ~> case_prod_const
haftmann@61424
  2437
  mk_split ~> mk_case_prod
haftmann@61424
  2438
  mk_psplits ~> mk_ptupleabs
haftmann@61424
  2439
  strip_psplits ~> strip_ptupleabs
wenzelm@62017
  2440
wenzelm@62017
  2441
INCOMPATIBILITY.
wenzelm@62017
  2442
wenzelm@62017
  2443
* The coercions to type 'real' have been reorganised. The function
wenzelm@62017
  2444
'real' is no longer overloaded, but has type 'nat => real' and
wenzelm@62017
  2445
abbreviates of_nat for that type. Also 'real_of_int :: int => real'
wenzelm@62017
  2446
abbreviates of_int for that type. Other overloaded instances of 'real'
wenzelm@62017
  2447
have been replaced by 'real_of_ereal' and 'real_of_float'.
wenzelm@62017
  2448
lp15@61694
  2449
Consolidated facts (among others):
lp15@61694
  2450
  real_of_nat_le_iff -> of_nat_le_iff
lp15@61694
  2451
  real_of_nat_numeral of_nat_numeral
lp15@61694
  2452
  real_of_int_zero of_int_0
lp15@61694
  2453
  real_of_nat_zero of_nat_0
lp15@61694
  2454
  real_of_one of_int_1
lp15@61694
  2455
  real_of_int_add of_int_add
lp15@61694
  2456
  real_of_nat_add of_nat_add
lp15@61694
  2457
  real_of_int_diff of_int_diff
lp15@61694
  2458
  real_of_nat_diff of_nat_diff
lp15@61694
  2459
  floor_subtract floor_diff_of_int
lp15@61694
  2460
  real_of_int_inject of_int_eq_iff
lp15@61694
  2461
  real_of_int_gt_zero_cancel_iff of_int_0_less_iff
lp15@61694
  2462
  real_of_int_ge_zero_cancel_iff of_int_0_le_iff
lp15@61694
  2463
  real_of_nat_ge_zero of_nat_0_le_iff
lp15@61694
  2464
  real_of_int_ceiling_ge le_of_int_ceiling
lp15@61694
  2465
  ceiling_less_eq ceiling_less_iff
lp15@61694
  2466
  ceiling_le_eq ceiling_le_iff
lp15@61694
  2467
  less_floor_eq less_floor_iff
lp15@61694
  2468
  floor_less_eq floor_less_iff
lp15@61694
  2469
  floor_divide_eq_div floor_divide_of_int_eq
lp15@61694
  2470
  real_of_int_zero_cancel of_nat_eq_0_iff
lp15@61694
  2471
  ceiling_real_of_int ceiling_of_int
wenzelm@62017
  2472
wenzelm@62017
  2473
INCOMPATIBILITY.
wenzelm@61143
  2474
wenzelm@60841
  2475
* Theory Map: lemma map_of_is_SomeD was a clone of map_of_SomeD and has
wenzelm@60841
  2476
been removed. INCOMPATIBILITY.
wenzelm@60841
  2477
lars@60712
  2478
* Quickcheck setup for finite sets.
lars@60712
  2479
nipkow@60171
  2480
* Discontinued simp_legacy_precond. Potential INCOMPATIBILITY.
wenzelm@60138
  2481
blanchet@60306
  2482
* Sledgehammer:
blanchet@61318
  2483
  - The MaSh relevance filter has been sped up.
blanchet@60306
  2484
  - Proof reconstruction has been improved, to minimize the incidence of
blanchet@60306
  2485
    cases where Sledgehammer gives a proof that does not work.
blanchet@60306
  2486
  - Auto Sledgehammer now minimizes and preplays the results.
blanchet@61030
  2487
  - Handle Vampire 4.0 proof output without raising exception.
blanchet@61043
  2488
  - Eliminated "MASH" environment variable. Use the "MaSh" option in
blanchet@61043
  2489
    Isabelle/jEdit instead. INCOMPATIBILITY.
blanchet@61317
  2490
  - Eliminated obsolete "blocking" option and related subcommands.
blanchet@60306
  2491
blanchet@60310
  2492
* Nitpick:
blanchet@61325
  2493
  - Fixed soundness bug in translation of "finite" predicate.
blanchet@61324
  2494
  - Fixed soundness bug in "destroy_constrs" optimization.
blanchet@62080
  2495
  - Fixed soundness bug in translation of "rat" type.
blanchet@60310
  2496
  - Removed "check_potential" and "check_genuine" options.
blanchet@61317
  2497
  - Eliminated obsolete "blocking" option.
blanchet@60310
  2498
wenzelm@62027
  2499
* (Co)datatype package:
blanchet@61345
  2500
  - New commands "lift_bnf" and "copy_bnf" for lifting (copying) a BNF
blanchet@61345
  2501
    structure on the raw type to an abstract type defined using typedef.
blanchet@61345
  2502
  - Always generate "case_transfer" theorem.
wenzelm@62235
  2503
  - For mutual types, generate slightly stronger "rel_induct",
haftmann@63946
  2504
    "rel_coinduct", and "coinduct" theorems. INCOMPATIBILITY.
blanchet@61551
  2505
  - Allow discriminators and selectors with the same name as the type
blanchet@61551
  2506
    being defined.
blanchet@61551
  2507
  - Avoid various internal name clashes (e.g., 'datatype f = f').
traytel@60920
  2508
wenzelm@62098
  2509
* Transfer: new methods for interactive debugging of 'transfer' and
wenzelm@62098
  2510
'transfer_prover': 'transfer_start', 'transfer_step', 'transfer_end',
wenzelm@62098
  2511
'transfer_prover_start' and 'transfer_prover_end'.
kuncar@61370
  2512
kleing@62118
  2513
* New diagnostic command print_record for displaying record definitions.
kleing@62118
  2514
haftmann@60868
  2515
* Division on integers is bootstrapped directly from division on
wenzelm@62017
  2516
naturals and uses generic numeral algorithm for computations. Slight
wenzelm@62017
  2517
INCOMPATIBILITY, simproc numeral_divmod replaces and generalizes former
wenzelm@62017
  2518
simprocs binary_int_div and binary_int_mod
wenzelm@62017
  2519
wenzelm@62017
  2520
* Tightened specification of class semiring_no_zero_divisors. Minor
haftmann@60516
  2521
INCOMPATIBILITY.
haftmann@60516
  2522
haftmann@60688
  2523
* Class algebraic_semidom introduces common algebraic notions of
wenzelm@62017
  2524
integral (semi)domains, particularly units. Although logically subsumed
wenzelm@62017
  2525
by fields, is is not a super class of these in order not to burden
wenzelm@62017
  2526
fields with notions that are trivial there.
wenzelm@62017
  2527
wenzelm@62017
  2528
* Class normalization_semidom specifies canonical representants for
wenzelm@62017
  2529
equivalence classes of associated elements in an integral (semi)domain.
wenzelm@62017
  2530
This formalizes associated elements as well.
haftmann@60688
  2531
haftmann@60688
  2532
* Abstract specification of gcd/lcm operations in classes semiring_gcd,
wenzelm@62017
  2533
semiring_Gcd, semiring_Lcd. Minor INCOMPATIBILITY: facts gcd_nat.commute
wenzelm@62017
  2534
and gcd_int.commute are subsumed by gcd.commute, as well as
wenzelm@62017
  2535
gcd_nat.assoc and gcd_int.assoc by gcd.assoc.
wenzelm@62017
  2536
wenzelm@62017
  2537
* Former constants Fields.divide (_ / _) and Divides.div (_ div _) are
wenzelm@62017
  2538
logically unified to Rings.divide in syntactic type class Rings.divide,
wenzelm@62017
  2539
with infix syntax (_ div _). Infix syntax (_ / _) for field division is
wenzelm@62017
  2540
added later as abbreviation in class Fields.inverse. INCOMPATIBILITY,
wenzelm@62017
  2541
instantiations must refer to Rings.divide rather than the former
wenzelm@62017
  2542
separate constants, hence infix syntax (_ / _) is usually not available
wenzelm@62017
  2543
during instantiation.
wenzelm@62017
  2544
wenzelm@62017
  2545
* New cancellation simprocs for boolean algebras to cancel complementary
wenzelm@62017
  2546
terms for sup and inf. For example, "sup x (sup y (- x))" simplifies to
wenzelm@62017
  2547
"top". INCOMPATIBILITY.
Andreas@61629
  2548
hoelzl@62101
  2549
* Class uniform_space introduces uniform spaces btw topological spaces
hoelzl@62101
  2550
and metric spaces. Minor INCOMPATIBILITY: open_<type>_def needs to be
wenzelm@62205
  2551
introduced in the form of an uniformity. Some constants are more general
wenzelm@62205
  2552
now, it may be necessary to add type class constraints.
hoelzl@62101
  2553
hoelzl@62101
  2554
  open_real_def \<leadsto> open_dist
hoelzl@62101
  2555
  open_complex_def \<leadsto> open_dist
hoelzl@62101
  2556
wenzelm@62026
  2557
* Library/Monad_Syntax: notation uses symbols \<bind> and \<then>. INCOMPATIBILITY.
wenzelm@62026
  2558
Mathias@60397
  2559
* Library/Multiset:
Mathias@60397
  2560
  - Renamed multiset inclusion operators:
Mathias@60397
  2561
      < ~> <#
blanchet@62208
  2562
      > ~> >#
Mathias@60397
  2563
      <= ~> <=#
blanchet@62208
  2564
      >= ~> >=#
Mathias@60397
  2565
      \<le> ~> \<le>#
blanchet@62208
  2566
      \<ge> ~> \<ge>#
Mathias@60397
  2567
    INCOMPATIBILITY.
blanchet@62209
  2568
  - Added multiset inclusion operator syntax:
blanchet@62209
  2569
      \<subset>#
blanchet@62209
  2570
      \<subseteq>#
blanchet@62209
  2571
      \<supset>#
blanchet@62209
  2572
      \<supseteq>#
Mathias@60397
  2573
  - "'a multiset" is no longer an instance of the "order",
Mathias@60397
  2574
    "ordered_ab_semigroup_add_imp_le", "ordered_cancel_comm_monoid_diff",
Mathias@60397
  2575
    "semilattice_inf", and "semilattice_sup" type classes. The theorems
Mathias@60397
  2576
    previously provided by these type classes (directly or indirectly)
Mathias@60397
  2577
    are now available through the "subset_mset" interpretation
Mathias@60397
  2578
    (e.g. add_mono ~> subset_mset.add_mono).
Mathias@60397
  2579
    INCOMPATIBILITY.
nipkow@60497
  2580
  - Renamed conversions:
nipkow@60515
  2581
      multiset_of ~> mset
nipkow@60515
  2582
      multiset_of_set ~> mset_set
nipkow@60497
  2583
      set_of ~> set_mset
nipkow@60497
  2584
    INCOMPATIBILITY
Mathias@60398
  2585
  - Renamed lemmas:
Mathias@60398
  2586
      mset_le_def ~> subseteq_mset_def
Mathias@60398
  2587
      mset_less_def ~> subset_mset_def
Mathias@60400
  2588
      less_eq_multiset.rep_eq ~> subseteq_mset_def
Mathias@60400
  2589
    INCOMPATIBILITY
Mathias@60400
  2590
  - Removed lemmas generated by lift_definition:
wenzelm@62235
  2591
    less_eq_multiset.abs_eq, less_eq_multiset.rsp,
wenzelm@62235
  2592
    less_eq_multiset.transfer, less_eq_multiset_def
Mathias@60400
  2593
    INCOMPATIBILITY
wenzelm@60006
  2594
wenzelm@62017
  2595
* Library/Omega_Words_Fun: Infinite words modeled as functions nat \<Rightarrow> 'a.
wenzelm@62017
  2596
wenzelm@62017
  2597
* Library/Bourbaki_Witt_Fixpoint: Added formalisation of the
wenzelm@62017
  2598
Bourbaki-Witt fixpoint theorem for increasing functions in
wenzelm@62017
  2599
chain-complete partial orders.
wenzelm@62017
  2600
wenzelm@62017
  2601
* Library/Old_Recdef: discontinued obsolete 'defer_recdef' command.
wenzelm@62017
  2602
Minor INCOMPATIBILITY, use 'function' instead.
wenzelm@62017
  2603
wenzelm@62064
  2604
* Library/Periodic_Fun: a locale that provides convenient lemmas for
wenzelm@62064
  2605
periodic functions.
eberlm@62060
  2606
wenzelm@62098
  2607
* Library/Formal_Power_Series: proper definition of division (with
wenzelm@62098
  2608
remainder) for formal power series; instances for Euclidean Ring and
wenzelm@62098
  2609
GCD.
eberlm@62086
  2610
wenzelm@62084
  2611
* HOL-Imperative_HOL: obsolete theory Legacy_Mrec has been removed.
wenzelm@62084
  2612
wenzelm@62084
  2613
* HOL-Statespace: command 'statespace' uses mandatory qualifier for
wenzelm@62084
  2614
import of parent, as for general 'locale' expressions. INCOMPATIBILITY,
wenzelm@62084
  2615
remove '!' and add '?' as required.
wenzelm@62084
  2616
wenzelm@62237
  2617
* HOL-Decision_Procs: The "approximation" method works with "powr"
wenzelm@62237
  2618
(exponentiation on real numbers) again.
wenzelm@62237
  2619
wenzelm@62084
  2620
* HOL-Multivariate_Analysis: theory Cauchy_Integral_Thm with Contour
wenzelm@62084
  2621
integrals (= complex path integrals), Cauchy's integral theorem, winding
wenzelm@62084
  2622
numbers and Cauchy's integral formula, Liouville theorem, Fundamental
wenzelm@62084
  2623
Theorem of Algebra. Ported from HOL Light.
wenzelm@62084
  2624
wenzelm@62084
  2625
* HOL-Multivariate_Analysis: topological concepts such as connected
wenzelm@62017
  2626
components, homotopic paths and the inside or outside of a set.
wenzelm@61121
  2627
wenzelm@62084
  2628
* HOL-Multivariate_Analysis: radius of convergence of power series and
wenzelm@62064
  2629
various summability tests; Harmonic numbers and the Euler–Mascheroni
wenzelm@62064
  2630
constant; the Generalised Binomial Theorem; the complex and real
wenzelm@62064
  2631
Gamma/log-Gamma/Digamma/ Polygamma functions and their most important
wenzelm@62064
  2632
properties.
eberlm@62060
  2633
wenzelm@62084
  2634
* HOL-Probability: The central limit theorem based on Levy's uniqueness
wenzelm@62084
  2635
and continuity theorems, weak convergence, and characterisitc functions.
wenzelm@62084
  2636
wenzelm@62084
  2637
* HOL-Data_Structures: new and growing session of standard data
wenzelm@62084
  2638
structures.
lammich@61178
  2639
wenzelm@60479
  2640
wenzelm@60793
  2641
*** ML ***
wenzelm@60793
  2642
wenzelm@62017
  2643
* The following combinators for low-level profiling of the ML runtime
wenzelm@62017
  2644
system are available:
wenzelm@62017
  2645
wenzelm@62017
  2646
  profile_time          (*CPU time*)
wenzelm@62017
  2647
  profile_time_thread   (*CPU time on this thread*)
wenzelm@62017
  2648
  profile_allocations   (*overall heap allocations*)
wenzelm@62017
  2649
wenzelm@62017
  2650
* Antiquotation @{undefined} or \<^undefined> inlines (raise Match).
wenzelm@62017
  2651
wenzelm@62075
  2652
* Antiquotation @{method NAME} inlines the (checked) name of the given
wenzelm@62075
  2653
Isar proof method.
wenzelm@62075
  2654
wenzelm@61922
  2655
* Pretty printing of Poly/ML compiler output in Isabelle has been
wenzelm@61922
  2656
improved: proper treatment of break offsets and blocks with consistent
wenzelm@61922
  2657
breaks.
wenzelm@61922
  2658
wenzelm@61268
  2659
* The auxiliary module Pure/display.ML has been eliminated. Its
wenzelm@61268
  2660
elementary thm print operations are now in Pure/more_thm.ML and thus
wenzelm@61268
  2661
called Thm.pretty_thm, Thm.string_of_thm etc. INCOMPATIBILITY.
wenzelm@61268
  2662
wenzelm@61144
  2663
* Simproc programming interfaces have been simplified:
wenzelm@61144
  2664
Simplifier.make_simproc and Simplifier.define_simproc supersede various
wenzelm@61144
  2665
forms of Simplifier.mk_simproc, Simplifier.simproc_global etc. Note that
wenzelm@61144
  2666
term patterns for the left-hand sides are specified with implicitly
wenzelm@61144
  2667
fixed variables, like top-level theorem statements. INCOMPATIBILITY.
wenzelm@61144
  2668
wenzelm@60802
  2669
* Instantiation rules have been re-organized as follows:
wenzelm@60802
  2670
wenzelm@60802
  2671
  Thm.instantiate  (*low-level instantiation with named arguments*)
wenzelm@60802
  2672
  Thm.instantiate' (*version with positional arguments*)
wenzelm@60802
  2673
wenzelm@60802
  2674
  Drule.infer_instantiate  (*instantiation with type inference*)
wenzelm@60802
  2675
  Drule.infer_instantiate'  (*version with positional arguments*)
wenzelm@60802
  2676
wenzelm@60802
  2677
The LHS only requires variable specifications, instead of full terms.
wenzelm@60802
  2678
Old cterm_instantiate is superseded by infer_instantiate.
wenzelm@60802
  2679
INCOMPATIBILITY, need to re-adjust some ML names and types accordingly.
wenzelm@60802
  2680
wenzelm@60793
  2681
* Old tactic shorthands atac, rtac, etac, dtac, ftac have been
wenzelm@60793
  2682
discontinued. INCOMPATIBILITY, use regular assume_tac, resolve_tac etc.
wenzelm@60793
  2683
instead (with proper context).
wenzelm@60642
  2684
wenzelm@60642
  2685
* Thm.instantiate (and derivatives) no longer require the LHS of the
wenzelm@60642
  2686
instantiation to be certified: plain variables are given directly.
wenzelm@60642
  2687
wenzelm@60707
  2688
* Subgoal.SUBPROOF and Subgoal.FOCUS combinators use anonymous
wenzelm@60707
  2689
quasi-bound variables (like the Simplifier), instead of accidentally
wenzelm@60707
  2690
named local fixes. This has the potential to improve stability of proof
wenzelm@60707
  2691
tools, but can also cause INCOMPATIBILITY for tools that don't observe
wenzelm@60707
  2692
the proof context discipline.
wenzelm@60707
  2693
wenzelm@62017
  2694
* Isar proof methods are based on a slightly more general type
wenzelm@62017
  2695
context_tactic, which allows to change the proof context dynamically
wenzelm@62017
  2696
(e.g. to update cases) and indicate explicit Seq.Error results. Former
wenzelm@62017
  2697
METHOD_CASES is superseded by CONTEXT_METHOD; further combinators are
wenzelm@62017
  2698
provided in src/Pure/Isar/method.ML for convenience. INCOMPATIBILITY.
wenzelm@61885
  2699
wenzelm@60642
  2700
wenzelm@60983
  2701
*** System ***
wenzelm@60983
  2702
wenzelm@62525
  2703
* Command-line tool "isabelle console" enables print mode "ASCII".
wenzelm@61958
  2704
wenzelm@62017
  2705
* Command-line tool "isabelle update_then" expands old Isar command
wenzelm@62017
  2706
conflations:
wenzelm@62017
  2707
wenzelm@62017
  2708
    hence  ~>  then have
wenzelm@62017
  2709
    thus   ~>  then show
wenzelm@62017
  2710
wenzelm@62017
  2711
This syntax is more orthogonal and improves readability and
wenzelm@62017
  2712
maintainability of proofs.
wenzelm@62017
  2713
wenzelm@61602
  2714
* Global session timeout is multiplied by timeout_scale factor. This
wenzelm@61602
  2715
allows to adjust large-scale tests (e.g. AFP) to overall hardware
wenzelm@61602
  2716
performance.
wenzelm@61602
  2717
wenzelm@61174
  2718
* Property values in etc/symbols may contain spaces, if written with the
wenzelm@62671
  2719
replacement character "␣" (Unicode point 0x2324). For example:
wenzelm@62671
  2720
wenzelm@62671
  2721
    \<star>  code: 0x0022c6  group: operator  font: Deja␣Vu␣Sans␣Mono
wenzelm@61174
  2722
wenzelm@60995
  2723
* Java runtime environment for x86_64-windows allows to use larger heap
wenzelm@60995
  2724
space.
wenzelm@60995
  2725
wenzelm@61135
  2726
* Java runtime options are determined separately for 32bit vs. 64bit
wenzelm@61135
  2727
platforms as follows.
wenzelm@61135
  2728
wenzelm@61135
  2729
  - Isabelle desktop application: platform-specific files that are
wenzelm@61135
  2730
    associated with the main app bundle
wenzelm@61135
  2731
wenzelm@61135
  2732
  - isabelle jedit: settings
wenzelm@61135
  2733
    JEDIT_JAVA_SYSTEM_OPTIONS
wenzelm@61135
  2734
    JEDIT_JAVA_OPTIONS32 vs. JEDIT_JAVA_OPTIONS64
wenzelm@61135
  2735
wenzelm@61135
  2736
  - isabelle build: settings
wenzelm@61135
  2737
    ISABELLE_BUILD_JAVA_OPTIONS32 vs. ISABELLE_BUILD_JAVA_OPTIONS64
wenzelm@61135
  2738
wenzelm@61294
  2739
* Bash shell function "jvmpath" has been renamed to "platform_path": it
wenzelm@61294