NEWS
author wenzelm
Sat Aug 06 18:14:59 2016 +0200 (2016-08-06 ago)
changeset 63624 994d1a1105ef
parent 63610 4b40b8196dc7
child 63627 6ddb43c6b711
permissions -rw-r--r--
more informative 'prf' and 'full_prf', based on HOL/Proofs/ex/XML_Data.thy;
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@60007
     5
wenzelm@60331
     6
wenzelm@62216
     7
New in this Isabelle version
wenzelm@62216
     8
----------------------------
wenzelm@62216
     9
wenzelm@62440
    10
*** General ***
wenzelm@62440
    11
wenzelm@63121
    12
* Embedded content (e.g. the inner syntax of types, terms, props) may be
wenzelm@63121
    13
delimited uniformly via cartouches. This works better than old-fashioned
wenzelm@63121
    14
quotes when sub-languages are nested.
wenzelm@63121
    15
wenzelm@62958
    16
* Type-inference improves sorts of newly introduced type variables for
wenzelm@62958
    17
the object-logic, using its base sort (i.e. HOL.type for Isabelle/HOL).
wenzelm@62958
    18
Thus terms like "f x" or "\<And>x. P x" without any further syntactic context
wenzelm@62958
    19
produce x::'a::type in HOL instead of x::'a::{} in Pure. Rare
wenzelm@62958
    20
INCOMPATIBILITY, need to provide explicit type constraints for Pure
wenzelm@62958
    21
types where this is really intended.
wenzelm@62958
    22
wenzelm@62969
    23
* Simplified outer syntax: uniform category "name" includes long
wenzelm@62969
    24
identifiers. Former "xname" / "nameref" / "name reference" has been
wenzelm@62969
    25
discontinued.
wenzelm@62969
    26
wenzelm@62807
    27
* Mixfix annotations support general block properties, with syntax
wenzelm@62807
    28
"(\<open>x=a y=b z \<dots>\<close>". Notable property names are "indent", "consistent",
wenzelm@62807
    29
"unbreakable", "markup". The existing notation "(DIGITS" is equivalent
wenzelm@62807
    30
to "(\<open>indent=DIGITS\<close>". The former notation "(00" for unbreakable blocks
wenzelm@62807
    31
is superseded by "(\<open>unbreabable\<close>" --- rare INCOMPATIBILITY.
wenzelm@62789
    32
wenzelm@62440
    33
* New symbol \<circle>, e.g. for temporal operator.
wenzelm@62440
    34
wenzelm@62453
    35
* Old 'header' command is no longer supported (legacy since
wenzelm@62453
    36
Isabelle2015).
wenzelm@62453
    37
wenzelm@63273
    38
* Command 'bundle' provides a local theory target to define a bundle
wenzelm@63273
    39
from the body of specification commands (such as 'declare',
wenzelm@63273
    40
'declaration', 'notation', 'lemmas', 'lemma'). For example:
wenzelm@63273
    41
wenzelm@63273
    42
bundle foo
wenzelm@63273
    43
begin
wenzelm@63273
    44
  declare a [simp]
wenzelm@63273
    45
  declare b [intro]
wenzelm@63273
    46
end
wenzelm@63272
    47
wenzelm@63282
    48
* Command 'unbundle' is like 'include', but works within a local theory
wenzelm@63282
    49
context. Unlike "context includes ... begin", the effect of 'unbundle'
wenzelm@63282
    50
on the target context persists, until different declarations are given.
wenzelm@63282
    51
wenzelm@63384
    52
* Proof method "blast" is more robust wrt. corner cases of Pure
wenzelm@63384
    53
statements without object-logic judgment.
wenzelm@63384
    54
wenzelm@63533
    55
* Pure provides basic versions of proof methods "simp" and "simp_all"
wenzelm@63533
    56
that only know about meta-equality (==). Potential INCOMPATIBILITY in
wenzelm@63533
    57
theory imports that merge Pure with e.g. Main of Isabelle/HOL: the order
wenzelm@63533
    58
is relevant to avoid confusion of Pure.simp vs. HOL.simp.
wenzelm@63533
    59
wenzelm@63624
    60
* Commands 'prf' and 'full_prf' are somewhat more informative (again):
wenzelm@63624
    61
proof terms are reconstructed and cleaned from administrative thm nodes.
wenzelm@63624
    62
wenzelm@62440
    63
wenzelm@62904
    64
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@62904
    65
wenzelm@63135
    66
* Cartouche abbreviations work both for " and ` to accomodate typical
wenzelm@63135
    67
situations where old ASCII notation may be updated.
wenzelm@63135
    68
wenzelm@63610
    69
* Isabelle/ML and Standard ML files are presented in Sidekick with the
wenzelm@63610
    70
tree structure of section headings: this special comment format is
wenzelm@63610
    71
described in "implementation" chapter 0, e.g. (*** section ***).
wenzelm@63610
    72
wenzelm@63022
    73
* IDE support for the Isabelle/Pure bootstrap process, with the
wenzelm@63022
    74
following independent stages:
wenzelm@63022
    75
wenzelm@63022
    76
  src/Pure/ROOT0.ML
wenzelm@63022
    77
  src/Pure/ROOT.ML
wenzelm@63022
    78
  src/Pure/Pure.thy
wenzelm@63022
    79
  src/Pure/ML_Bootstrap.thy
wenzelm@63022
    80
wenzelm@63022
    81
The ML ROOT files act like quasi-theories in the context of theory
wenzelm@63022
    82
ML_Bootstrap: this allows continuous checking of all loaded ML files.
wenzelm@63022
    83
The theory files are presented with a modified header to import Pure
wenzelm@63022
    84
from the running Isabelle instance. Results from changed versions of
wenzelm@63022
    85
each stage are *not* propagated to the next stage, and isolated from the
wenzelm@63022
    86
actual Isabelle/Pure that runs the IDE itself. The sequential
wenzelm@63308
    87
dependencies of the above files are only observed for batch build.
wenzelm@62904
    88
wenzelm@62987
    89
* Highlighting of entity def/ref positions wrt. cursor.
wenzelm@62987
    90
wenzelm@63461
    91
* Refined folding mode "isabelle" based on Isar syntax: 'next' and 'qed'
wenzelm@63592
    92
are treated as delimiters for fold structure; 'begin' and 'end'
wenzelm@63592
    93
structure of theory specifications is treated as well.
wenzelm@63461
    94
wenzelm@63608
    95
* Sidekick parser "isabelle-context" shows nesting of context blocks
wenzelm@63608
    96
according to 'begin' and 'end' structure.
wenzelm@63608
    97
wenzelm@63474
    98
* Syntactic indentation according to Isabelle outer syntax. Action
wenzelm@63474
    99
"indent-lines" (shortcut C+i) indents the current line according to
wenzelm@63474
   100
command keywords and some command substructure. Action
wenzelm@63455
   101
"isabelle.newline" (shortcut ENTER) indents the old and the new line
wenzelm@63455
   102
according to command keywords only; see also option
wenzelm@63455
   103
"jedit_indent_newline".
wenzelm@63452
   104
wenzelm@63474
   105
* Semantic indentation for unstructured proof scripts ('apply' etc.) via
wenzelm@63474
   106
number of subgoals. This requires information of ongoing document
wenzelm@63474
   107
processing and may thus lag behind, when the user is editing too
wenzelm@63474
   108
quickly; see also option "jedit_script_indent" and
wenzelm@63474
   109
"jedit_script_indent_limit".
wenzelm@63474
   110
wenzelm@63236
   111
* Action "isabelle.select-entity" (shortcut CS+ENTER) selects all
wenzelm@63236
   112
occurences of the formal entity at the caret position. This facilitates
wenzelm@63236
   113
systematic renaming.
wenzelm@63236
   114
wenzelm@63032
   115
* Document markup works across multiple Isar commands, e.g. the results
wenzelm@63032
   116
established at the end of a proof are properly identified in the theorem
wenzelm@63032
   117
statement.
wenzelm@63032
   118
wenzelm@63513
   119
* Command 'proof' provides information about proof outline with cases,
wenzelm@63513
   120
e.g. for proof methods "cases", "induct", "goal_cases".
wenzelm@63513
   121
wenzelm@63529
   122
* Completion templates for commands involving "begin ... end" blocks,
wenzelm@63529
   123
e.g. 'context', 'notepad'.
wenzelm@63529
   124
wenzelm@63581
   125
* Additional abbreviations for syntactic completion may be specified
wenzelm@63579
   126
within the theory header as 'abbrevs', in addition to global
wenzelm@63581
   127
$ISABELLE_HOME/etc/abbrevs and $ISABELLE_HOME_USER/etc/abbrevs as
wenzelm@63581
   128
before. The theory syntax for 'keywords' has been simplified
wenzelm@63581
   129
accordingly: optional abbrevs need to go into the new 'abbrevs' section.
wenzelm@63579
   130
wenzelm@62904
   131
wenzelm@62312
   132
*** Isar ***
wenzelm@62312
   133
wenzelm@63384
   134
* The defining position of a literal fact \<open>prop\<close> is maintained more
wenzelm@63384
   135
carefully, and made accessible as hyperlink in the Prover IDE.
wenzelm@63384
   136
wenzelm@63384
   137
* Commands 'finally' and 'ultimately' used to expose the result as
wenzelm@63384
   138
literal fact: this accidental behaviour has been discontinued. Rare
wenzelm@63384
   139
INCOMPATIBILITY, use more explicit means to refer to facts in Isar.
wenzelm@63384
   140
wenzelm@63178
   141
* Command 'axiomatization' has become more restrictive to correspond
wenzelm@63178
   142
better to internal axioms as singleton facts with mandatory name. Minor
wenzelm@63178
   143
INCOMPATIBILITY.
wenzelm@63178
   144
wenzelm@63180
   145
* Many specification elements support structured statements with 'if' /
wenzelm@63180
   146
'for' eigen-context, e.g. 'axiomatization', 'abbreviation',
wenzelm@63180
   147
'definition', 'inductive', 'function'.
wenzelm@63180
   148
wenzelm@63094
   149
* Toplevel theorem statements support eigen-context notation with 'if' /
wenzelm@63285
   150
'for' (in postfix), which corresponds to 'assumes' / 'fixes' in the
wenzelm@63094
   151
traditional long statement form (in prefix). Local premises are called
wenzelm@63094
   152
"that" or "assms", respectively. Empty premises are *not* bound in the
wenzelm@63094
   153
context: INCOMPATIBILITY.
wenzelm@63094
   154
wenzelm@63043
   155
* Command 'define' introduces a local (non-polymorphic) definition, with
wenzelm@63043
   156
optional abstraction over local parameters. The syntax resembles
wenzelm@63047
   157
'definition' and 'obtain'. It fits better into the Isar language than
wenzelm@63047
   158
old 'def', which is now a legacy feature.
wenzelm@63043
   159
wenzelm@63059
   160
* Command 'obtain' supports structured statements with 'if' / 'for'
wenzelm@63059
   161
context.
wenzelm@63059
   162
wenzelm@62312
   163
* Command '\<proof>' is an alias for 'sorry', with different
wenzelm@62312
   164
typesetting. E.g. to produce proof holes in examples and documentation.
wenzelm@62216
   165
wenzelm@62939
   166
* The old proof method "default" has been removed (legacy since
wenzelm@62939
   167
Isabelle2016). INCOMPATIBILITY, use "standard" instead.
wenzelm@62939
   168
wenzelm@63259
   169
* Proof methods may refer to the main facts via the dynamic fact
wenzelm@63259
   170
"method_facts". This is particularly useful for Eisbach method
wenzelm@63259
   171
definitions.
wenzelm@63259
   172
wenzelm@63528
   173
* Proof method "use" allows to modify the main facts of a given method
wenzelm@63528
   174
expression, e.g.
wenzelm@63259
   175
wenzelm@63259
   176
  (use facts in simp)
wenzelm@63259
   177
  (use facts in \<open>simp add: ...\<close>)
wenzelm@63259
   178
wenzelm@62216
   179
haftmann@63165
   180
*** Pure ***
haftmann@63165
   181
wenzelm@63166
   182
* Code generator: config option "code_timing" triggers measurements of
wenzelm@63166
   183
different phases of code generation. See src/HOL/ex/Code_Timing.thy for
wenzelm@63166
   184
examples.
haftmann@63165
   185
haftmann@63350
   186
* Code generator: implicits in Scala (stemming from type class instances)
haftmann@63350
   187
are generated into companion object of corresponding type class, to resolve
haftmann@63350
   188
some situations where ambiguities may occur.
haftmann@63350
   189
haftmann@63165
   190
blanchet@62327
   191
*** HOL ***
blanchet@62327
   192
eberlm@63552
   193
* Number_Theory: algebraic foundation for primes: Introduction of 
eberlm@63552
   194
predicates "is_prime", "irreducible", a "prime_factorization" 
eberlm@63552
   195
function, the "factorial_ring" typeclass with instance proofs for 
eberlm@63552
   196
nat, int, poly.
eberlm@63552
   197
eberlm@63552
   198
* Probability: Code generation and QuickCheck for Probability Mass 
eberlm@63552
   199
Functions.
eberlm@63552
   200
haftmann@63438
   201
* Theory Set_Interval.thy: substantial new theorems on indexed sums
haftmann@63438
   202
and products.
haftmann@63438
   203
nipkow@63414
   204
* Theory Library/LaTeXsugar.thy: New style "dummy_pats" for displaying
nipkow@63414
   205
equations in functional programming style: variables present on the
nipkow@63414
   206
left-hand but not on the righ-hand side are replaced by underscores.
nipkow@63414
   207
haftmann@63416
   208
* "surj" is a mere input abbreviation, to avoid hiding an equation in
haftmann@63416
   209
term output.  Minor INCOMPATIBILITY.
haftmann@63416
   210
haftmann@63378
   211
* Theory Library/Combinator_PER.thy: combinator to build partial
haftmann@63379
   212
equivalence relations from a predicate and an equivalence relation.
haftmann@63378
   213
haftmann@63376
   214
* Theory Library/Perm.thy: basic facts about almost everywhere fix
haftmann@63376
   215
bijections.
haftmann@63376
   216
haftmann@63375
   217
* Locale bijection establishes convenient default simp rules
haftmann@63375
   218
like "inv f (f a) = a" for total bijections.
haftmann@63375
   219
wenzelm@63343
   220
* Former locale lifting_syntax is now a bundle, which is easier to
wenzelm@63343
   221
include in a local context or theorem statement, e.g. "context includes
wenzelm@63343
   222
lifting_syntax begin ... end". Minor INCOMPATIBILITY.
wenzelm@63343
   223
haftmann@63303
   224
* Code generation for scala: ambiguous implicts in class diagrams
haftmann@63303
   225
are spelt out explicitly.
haftmann@63303
   226
haftmann@63290
   227
* Abstract locales semigroup, abel_semigroup, semilattice,
haftmann@63290
   228
semilattice_neutr, ordering, ordering_top, semilattice_order,
haftmann@63290
   229
semilattice_neutr_order, comm_monoid_set, semilattice_set,
haftmann@63290
   230
semilattice_neutr_set, semilattice_order_set, semilattice_order_neutr_set
haftmann@63290
   231
monoid_list, comm_monoid_list, comm_monoid_list_set, comm_monoid_mset,
haftmann@63290
   232
comm_monoid_fun use boldified syntax uniformly that does not clash
haftmann@63290
   233
with corresponding global syntax.  INCOMPATIBILITY.
haftmann@63290
   234
haftmann@63237
   235
* Conventional syntax "%(). t" for unit abstractions.  Slight syntactic
haftmann@63237
   236
INCOMPATIBILITY.
haftmann@63237
   237
haftmann@63174
   238
* Command 'code_reflect' accepts empty constructor lists for datatypes,
haftmann@63174
   239
which renders those abstract effectively.
haftmann@63174
   240
haftmann@63175
   241
* Command 'export_code' checks given constants for abstraction violations:
haftmann@63175
   242
a small guarantee that given constants specify a safe interface for the
haftmann@63175
   243
generated code.
haftmann@63175
   244
eberlm@63144
   245
* Probability/Random_Permutations.thy contains some theory about 
eberlm@63144
   246
choosing a permutation of a set uniformly at random and folding over a 
eberlm@63144
   247
list in random order.
eberlm@63144
   248
Andreas@63246
   249
* Probability/SPMF formalises discrete subprobability distributions.
Andreas@63246
   250
wenzelm@63283
   251
* Library/FinFun.thy: bundles "finfun_syntax" and "no_finfun_syntax"
wenzelm@63283
   252
allow to control optional syntax in local contexts; this supersedes
wenzelm@63283
   253
former Library/FinFun_Syntax.thy. INCOMPATIBILITY, e.g. use "unbundle
wenzelm@63283
   254
finfun_syntax" to imitate import of "~~/src/HOL/Library/FinFun_Syntax".
wenzelm@63283
   255
eberlm@63144
   256
* Library/Set_Permutations.thy (executably) defines the set of 
eberlm@63144
   257
permutations of a set, i.e. the set of all lists that contain every 
eberlm@63144
   258
element of the carrier set exactly once.
eberlm@63144
   259
haftmann@63161
   260
* Static evaluators (Code_Evaluation.static_* in Isabelle/ML) rely on
haftmann@63161
   261
explicitly provided auxiliary definitions for required type class
haftmann@63161
   262
dictionaries rather than half-working magic.  INCOMPATIBILITY, see
haftmann@63161
   263
the tutorial on code generation for details.
haftmann@63161
   264
wenzelm@62522
   265
* New abbreviations for negated existence (but not bounded existence):
wenzelm@62522
   266
wenzelm@62522
   267
  \<nexists>x. P x \<equiv> \<not> (\<exists>x. P x)
wenzelm@62522
   268
  \<nexists>!x. P x \<equiv> \<not> (\<exists>!x. P x)
wenzelm@62522
   269
wenzelm@62521
   270
* The print mode "HOL" for ASCII syntax of binders "!", "?", "?!", "@"
wenzelm@62521
   271
has been removed for output. It is retained for input only, until it is
wenzelm@62521
   272
eliminated altogether.
wenzelm@62521
   273
blanchet@63116
   274
* Sledgehammer:
blanchet@63116
   275
  - Produce syntactically correct Vampire 4.0 problem files.
blanchet@63116
   276
blanchet@62327
   277
* (Co)datatype package:
blanchet@62693
   278
  - New commands for defining corecursive functions and reasoning about
blanchet@62693
   279
    them in "~~/src/HOL/Library/BNF_Corec.thy": 'corec', 'corecursive',
blanchet@62693
   280
    'friend_of_corec', and 'corecursion_upto'; and 'corec_unique' proof
blanchet@62842
   281
    method. See 'isabelle doc corec'.
blanchet@62693
   282
  - The predicator :: ('a => bool) => 'a F => bool is now a first-class
traytel@62332
   283
    citizen in bounded natural functors
blanchet@62693
   284
  - 'primrec' now allows nested calls through the predicator in addition
blanchet@62327
   285
    to the map function.
blanchet@62693
   286
  - 'bnf' automatically discharges reflexive proof obligations
blanchet@62693
   287
  - 'bnf' outputs a slightly modified proof obligation expressing rel in
traytel@62332
   288
       terms of map and set
traytel@62332
   289
       (not giving a specification for rel makes this one reflexive)
blanchet@62693
   290
  - 'bnf' outputs a new proof obligation expressing pred in terms of set
traytel@62332
   291
       (not giving a specification for pred makes this one reflexive)
blanchet@62693
   292
    INCOMPATIBILITY: manual 'bnf' declarations may need adjustment
blanchet@62335
   293
  - Renamed lemmas:
blanchet@62335
   294
      rel_prod_apply ~> rel_prod_inject
blanchet@62335
   295
      pred_prod_apply ~> pred_prod_inject
blanchet@62335
   296
    INCOMPATIBILITY.
blanchet@62536
   297
  - The "size" plugin has been made compatible again with locales.
blanchet@62327
   298
wenzelm@63113
   299
* Removed obsolete theorem nat_less_cases. INCOMPATIBILITY, use
wenzelm@63113
   300
linorder_cases instead.
wenzelm@63113
   301
Mathias@63456
   302
* Some theorems about groups and orders have been generalised from
Mathias@63456
   303
  groups to semi-groups that are also monoids:
Mathias@63456
   304
    le_add_same_cancel1
Mathias@63456
   305
    le_add_same_cancel2
Mathias@63456
   306
    less_add_same_cancel1
Mathias@63456
   307
    less_add_same_cancel2
Mathias@63456
   308
    add_le_same_cancel1
Mathias@63456
   309
    add_le_same_cancel2
Mathias@63456
   310
    add_less_same_cancel1
Mathias@63456
   311
    add_less_same_cancel2
Mathias@63456
   312
Mathias@63456
   313
* Some simplifications theorems about rings have been removed, since
Mathias@63456
   314
  superseeded by a more general version:
Mathias@63456
   315
    less_add_cancel_left_greater_zero ~> less_add_same_cancel1
Mathias@63456
   316
    less_add_cancel_right_greater_zero ~> less_add_same_cancel2
Mathias@63456
   317
    less_eq_add_cancel_left_greater_eq_zero ~> le_add_same_cancel1
Mathias@63456
   318
    less_eq_add_cancel_right_greater_eq_zero ~> le_add_same_cancel2
Mathias@63456
   319
    less_eq_add_cancel_left_less_eq_zero ~> add_le_same_cancel1
Mathias@63456
   320
    less_eq_add_cancel_right_less_eq_zero ~> add_le_same_cancel2
Mathias@63456
   321
    less_add_cancel_left_less_zero ~> add_less_same_cancel1
Mathias@63456
   322
    less_add_cancel_right_less_zero ~> add_less_same_cancel2
Mathias@63456
   323
INCOMPATIBILITY.
Mathias@63456
   324
wenzelm@62407
   325
* Renamed split_if -> if_split and split_if_asm -> if_split_asm to
wenzelm@62407
   326
resemble the f.split naming convention, INCOMPATIBILITY.
nipkow@62396
   327
haftmann@62597
   328
* Characters (type char) are modelled as finite algebraic type
haftmann@62597
   329
corresponding to {0..255}.
haftmann@62597
   330
haftmann@62597
   331
  - Logical representation:
haftmann@62597
   332
    * 0 is instantiated to the ASCII zero character.
wenzelm@62645
   333
    * All other characters are represented as "Char n"
haftmann@62597
   334
      with n being a raw numeral expression less than 256.
wenzelm@62645
   335
    * Expressions of the form "Char n" with n greater than 255
haftmann@62597
   336
      are non-canonical.
haftmann@62597
   337
  - Printing and parsing:
wenzelm@62645
   338
    * Printable characters are printed and parsed as "CHR ''\<dots>''"
haftmann@62597
   339
      (as before).
wenzelm@62645
   340
    * The ASCII zero character is printed and parsed as "0".
haftmann@62678
   341
    * All other canonical characters are printed as "CHR 0xXX"
haftmann@62678
   342
      with XX being the hexadecimal character code.  "CHR n"
haftmann@62597
   343
      is parsable for every numeral expression n.
haftmann@62598
   344
    * Non-canonical characters have no special syntax and are
haftmann@62597
   345
      printed as their logical representation.
haftmann@62597
   346
  - Explicit conversions from and to the natural numbers are
haftmann@62597
   347
    provided as char_of_nat, nat_of_char (as before).
haftmann@62597
   348
  - The auxiliary nibble type has been discontinued.
haftmann@62597
   349
haftmann@62597
   350
INCOMPATIBILITY.
haftmann@62597
   351
haftmann@62430
   352
* Multiset membership is now expressed using set_mset rather than count.
haftmann@62430
   353
haftmann@62430
   354
  - Expressions "count M a > 0" and similar simplify to membership
haftmann@62430
   355
    by default.
haftmann@62430
   356
haftmann@62430
   357
  - Converting between "count M a = 0" and non-membership happens using
haftmann@62430
   358
    equations count_eq_zero_iff and not_in_iff.
haftmann@62430
   359
haftmann@62430
   360
  - Rules count_inI and in_countE obtain facts of the form
haftmann@62430
   361
    "count M a = n" from membership.
haftmann@62430
   362
haftmann@62430
   363
  - Rules count_in_diffI and in_diff_countE obtain facts of the form
haftmann@62430
   364
    "count M a = n + count N a" from membership on difference sets.
haftmann@62430
   365
haftmann@62430
   366
INCOMPATIBILITY.
haftmann@62430
   367
Mathias@63312
   368
* The names of multiset theorems have been normalised to distinguish which
Mathias@63312
   369
  ordering the theorems are about
Mathias@63312
   370
    mset_less_eqI ~> mset_subset_eqI
Mathias@63312
   371
    mset_less_insertD ~> mset_subset_insertD
Mathias@63312
   372
    mset_less_eq_count ~> mset_subset_eq_count
Mathias@63312
   373
    mset_less_diff_self ~> mset_subset_diff_self
Mathias@63312
   374
    mset_le_exists_conv ~> mset_subset_eq_exists_conv
Mathias@63312
   375
    mset_le_mono_add_right_cancel ~> mset_subset_eq_mono_add_right_cancel
Mathias@63312
   376
    mset_le_mono_add_left_cancel ~> mset_subset_eq_mono_add_left_cancel
Mathias@63312
   377
    mset_le_mono_add ~> mset_subset_eq_mono_add
Mathias@63312
   378
    mset_le_add_left ~> mset_subset_eq_add_left
Mathias@63312
   379
    mset_le_add_right ~> mset_subset_eq_add_right
Mathias@63312
   380
    mset_le_single ~> mset_subset_eq_single
Mathias@63312
   381
    mset_le_multiset_union_diff_commute ~> mset_subset_eq_multiset_union_diff_commute
Mathias@63312
   382
    diff_le_self ~> diff_subset_eq_self
Mathias@63312
   383
    mset_leD ~> mset_subset_eqD
Mathias@63312
   384
    mset_lessD ~> mset_subsetD
Mathias@63312
   385
    mset_le_insertD ~> mset_subset_eq_insertD
Mathias@63312
   386
    mset_less_of_empty ~> mset_subset_of_empty
Mathias@63312
   387
    le_empty ~> subset_eq_empty
Mathias@63312
   388
    mset_less_add_bothsides ~> mset_subset_add_bothsides
Mathias@63312
   389
    mset_less_empty_nonempty ~> mset_subset_empty_nonempty
Mathias@63312
   390
    mset_less_size ~> mset_subset_size
Mathias@63312
   391
    wf_less_mset_rel ~> wf_subset_mset_rel
Mathias@63312
   392
    count_le_replicate_mset_le ~> count_le_replicate_mset_subset_eq
Mathias@63312
   393
    mset_remdups_le ~> mset_remdups_subset_eq
Mathias@63312
   394
    ms_lesseq_impl ~> subset_eq_mset_impl
Mathias@63312
   395
Mathias@63312
   396
  Some functions have been renamed:
Mathias@63312
   397
    ms_lesseq_impl -> subset_eq_mset_impl
Mathias@63312
   398
Mathias@63388
   399
* Multisets are now ordered with the multiset ordering
Mathias@63388
   400
    #\<subseteq># ~> \<le>
Mathias@63388
   401
    #\<subset># ~> <
Mathias@63388
   402
    le_multiset ~> less_eq_multiset
Mathias@63388
   403
    less_multiset ~> le_multiset
blanchet@63407
   404
INCOMPATIBILITY.
Mathias@63388
   405
Mathias@63388
   406
* The prefix multiset_order has been discontinued: the theorems can be directly
blanchet@63407
   407
accessed. As a consequence, the lemmas "order_multiset" and "linorder_multiset"
blanchet@63407
   408
have been discontinued, and the interpretations "multiset_linorder" and
blanchet@63407
   409
"multiset_wellorder" have been replaced by instantiations.
blanchet@63407
   410
INCOMPATIBILITY.
Mathias@63388
   411
Mathias@63388
   412
* Some theorems about the multiset ordering have been renamed:
Mathias@63388
   413
    le_multiset_def ~> less_eq_multiset_def
Mathias@63388
   414
    less_multiset_def ~> le_multiset_def
Mathias@63388
   415
    less_eq_imp_le_multiset ~> subset_eq_imp_le_multiset
Mathias@63388
   416
    mult_less_not_refl ~> mset_le_not_refl
Mathias@63388
   417
    mult_less_trans ~> mset_le_trans
Mathias@63388
   418
    mult_less_not_sym ~> mset_le_not_sym
Mathias@63388
   419
    mult_less_asym ~> mset_le_asym
Mathias@63388
   420
    mult_less_irrefl ~> mset_le_irrefl
Mathias@63388
   421
    union_less_mono2{,1,2} ~> union_le_mono2{,1,2}
Mathias@63388
   422
Mathias@63388
   423
    le_multiset\<^sub>H\<^sub>O ~> less_eq_multiset\<^sub>H\<^sub>O
Mathias@63388
   424
    le_multiset_total ~> less_eq_multiset_total
Mathias@63388
   425
    less_multiset_right_total ~> subset_eq_imp_le_multiset
Mathias@63388
   426
    le_multiset_empty_left ~> less_eq_multiset_empty_left
Mathias@63388
   427
    le_multiset_empty_right ~> less_eq_multiset_empty_right
Mathias@63388
   428
    less_multiset_empty_right ~> le_multiset_empty_left
Mathias@63388
   429
    less_multiset_empty_left ~> le_multiset_empty_right
Mathias@63388
   430
    union_less_diff_plus ~> union_le_diff_plus
Mathias@63388
   431
    ex_gt_count_imp_less_multiset ~> ex_gt_count_imp_le_multiset
Mathias@63388
   432
    less_multiset_plus_left_nonempty ~> le_multiset_plus_left_nonempty
Mathias@63388
   433
    le_multiset_plus_right_nonempty ~> le_multiset_plus_right_nonempty
Mathias@63388
   434
    less_multiset_plus_plus_left_iff ~> le_multiset_plus_plus_left_iff
Mathias@63388
   435
    less_multiset_plus_plus_right_iff ~> le_multiset_plus_plus_right_iff
blanchet@63407
   436
INCOMPATIBILITY.
Mathias@63388
   437
Mathias@63524
   438
* The lemma mset_map has now the attribute [simp].
Mathias@63524
   439
INCOMPATIBILITY.
Mathias@63524
   440
Mathias@63525
   441
* Some theorems about multisets have been removed:
Mathias@63525
   442
    le_multiset_plus_plus_left_iff ~> add_less_cancel_right
Mathias@63525
   443
    le_multiset_plus_plus_right_iff ~> add_less_cancel_left
Mathias@63525
   444
    add_eq_self_empty_iff ~> add_cancel_left_right
Mathias@63525
   445
INCOMPATIBILITY.
Mathias@63525
   446
Mathias@63410
   447
* Some typeclass constraints about multisets have been reduced from ordered or
Mathias@63410
   448
linordered to preorder. Multisets have the additional typeclasses order_bot,
Mathias@63410
   449
no_top, ordered_ab_semigroup_add_imp_le, ordered_cancel_comm_monoid_add,
Mathias@63525
   450
linordered_cancel_ab_semigroup_add, and ordered_ab_semigroup_monoid_add_imp_le.
Mathias@63410
   451
INCOMPATIBILITY.
Mathias@63410
   452
Mathias@63561
   453
* There are some new simplification rules about multisets, the multiset
Mathias@63561
   454
ordering, and the subset ordering on multisets.
Mathias@63561
   455
INCOMPATIBILITY.
Mathias@63561
   456
Mathias@63561
   457
* The subset ordering on multisets has now the interpretation
Mathias@63561
   458
ordered_ab_semigroup_monoid_add_imp_le.
Mathias@63410
   459
INCOMPATIBILITY.
Mathias@63410
   460
haftmann@62343
   461
* Compound constants INFIMUM and SUPREMUM are mere abbreviations now.
haftmann@62343
   462
INCOMPATIBILITY.
haftmann@62343
   463
lp15@62408
   464
* More complex analysis including Cauchy's inequality, Liouville theorem,
lp15@63078
   465
open mapping theorem, maximum modulus principle, Residue theorem, Schwarz Lemma.
lp15@63078
   466
lp15@63078
   467
* Theory of polyhedra: faces, extreme points, polytopes, and the Krein–Milman
lp15@63078
   468
Minkowski theorem.
lp15@62408
   469
haftmann@62358
   470
* "Gcd (f ` A)" and "Lcm (f ` A)" are printed with optional
haftmann@62358
   471
comprehension-like syntax analogously to "Inf (f ` A)" and "Sup (f ` A)".
haftmann@62358
   472
haftmann@62345
   473
* Class semiring_Lcd merged into semiring_Gcd.  INCOMPATIBILITY.
haftmann@62345
   474
hoelzl@62376
   475
* The type class ordered_comm_monoid_add is now called
hoelzl@62376
   476
ordered_cancel_comm_monoid_add. A new type class ordered_comm_monoid_add is
hoelzl@62376
   477
introduced as the combination of ordered_ab_semigroup_add + comm_monoid_add.
hoelzl@62376
   478
INCOMPATIBILITY.
hoelzl@62376
   479
hoelzl@62376
   480
* Introduced the type classes canonically_ordered_comm_monoid_add and dioid.
hoelzl@62376
   481
Mathias@63456
   482
* Introduced the type class ordered_ab_semigroup_monoid_add_imp_le. When
Mathias@63456
   483
instantiating linordered_semiring_strict and ordered_ab_group_add, an explicit
Mathias@63456
   484
instantiation of ordered_ab_semigroup_monoid_add_imp_le might be
Mathias@63456
   485
required.
Mathias@63456
   486
INCOMPATIBILITY.
Mathias@63456
   487
hoelzl@62376
   488
* Added topological_monoid
hoelzl@62376
   489
Andreas@62649
   490
* Library/Complete_Partial_Order2.thy provides reasoning support for
Andreas@62649
   491
proofs about monotonicity and continuity in chain-complete partial
Andreas@62649
   492
orders and about admissibility conditions for fixpoint inductions.
Andreas@62649
   493
haftmann@62352
   494
* Library/Polynomial.thy contains also derivation of polynomials
haftmann@62352
   495
but not gcd/lcm on polynomials over fields.  This has been moved
haftmann@62352
   496
to a separate theory Library/Polynomial_GCD_euclidean.thy, to
haftmann@62352
   497
pave way for a possible future different type class instantiation
haftmann@62352
   498
for polynomials over factorial rings.  INCOMPATIBILITY.
haftmann@62352
   499
nipkow@63155
   500
* Library/Sublist.thy: added function "prefixes" and renamed
nipkow@63173
   501
  prefixeq -> prefix
nipkow@63173
   502
  prefix -> strict_prefix
nipkow@63173
   503
  suffixeq -> suffix
nipkow@63173
   504
  suffix -> strict_suffix
nipkow@63173
   505
  Added theory of longest common prefixes.
nipkow@63117
   506
haftmann@62348
   507
* Dropped various legacy fact bindings, whose replacements are often
haftmann@62348
   508
of a more general type also:
haftmann@62348
   509
  lcm_left_commute_nat ~> lcm.left_commute
haftmann@62348
   510
  lcm_left_commute_int ~> lcm.left_commute
haftmann@62348
   511
  gcd_left_commute_nat ~> gcd.left_commute
haftmann@62348
   512
  gcd_left_commute_int ~> gcd.left_commute
haftmann@62348
   513
  gcd_greatest_iff_nat ~> gcd_greatest_iff
haftmann@62348
   514
  gcd_greatest_iff_int ~> gcd_greatest_iff
haftmann@62348
   515
  coprime_dvd_mult_nat ~> coprime_dvd_mult
haftmann@62348
   516
  coprime_dvd_mult_int ~> coprime_dvd_mult
haftmann@62348
   517
  zpower_numeral_even ~> power_numeral_even
haftmann@62348
   518
  gcd_mult_cancel_nat ~> gcd_mult_cancel
haftmann@62348
   519
  gcd_mult_cancel_int ~> gcd_mult_cancel
haftmann@62348
   520
  div_gcd_coprime_nat ~> div_gcd_coprime
haftmann@62348
   521
  div_gcd_coprime_int ~> div_gcd_coprime
haftmann@62348
   522
  zpower_numeral_odd ~> power_numeral_odd
haftmann@62348
   523
  zero_less_int_conv ~> of_nat_0_less_iff
haftmann@62348
   524
  gcd_greatest_nat ~> gcd_greatest
haftmann@62348
   525
  gcd_greatest_int ~> gcd_greatest
haftmann@62348
   526
  coprime_mult_nat ~> coprime_mult
haftmann@62348
   527
  coprime_mult_int ~> coprime_mult
haftmann@62348
   528
  lcm_commute_nat ~> lcm.commute
haftmann@62348
   529
  lcm_commute_int ~> lcm.commute
haftmann@62348
   530
  int_less_0_conv ~> of_nat_less_0_iff
haftmann@62348
   531
  gcd_commute_nat ~> gcd.commute
haftmann@62348
   532
  gcd_commute_int ~> gcd.commute
haftmann@62348
   533
  Gcd_insert_nat ~> Gcd_insert
haftmann@62348
   534
  Gcd_insert_int ~> Gcd_insert
haftmann@62348
   535
  of_int_int_eq ~> of_int_of_nat_eq
haftmann@62348
   536
  lcm_least_nat ~> lcm_least
haftmann@62348
   537
  lcm_least_int ~> lcm_least
haftmann@62348
   538
  lcm_assoc_nat ~> lcm.assoc
haftmann@62348
   539
  lcm_assoc_int ~> lcm.assoc
haftmann@62348
   540
  int_le_0_conv ~> of_nat_le_0_iff
haftmann@62348
   541
  int_eq_0_conv ~> of_nat_eq_0_iff
haftmann@62348
   542
  Gcd_empty_nat ~> Gcd_empty
haftmann@62348
   543
  Gcd_empty_int ~> Gcd_empty
haftmann@62348
   544
  gcd_assoc_nat ~> gcd.assoc
haftmann@62348
   545
  gcd_assoc_int ~> gcd.assoc
haftmann@62348
   546
  zero_zle_int ~> of_nat_0_le_iff
haftmann@62348
   547
  lcm_dvd2_nat ~> dvd_lcm2
haftmann@62348
   548
  lcm_dvd2_int ~> dvd_lcm2
haftmann@62348
   549
  lcm_dvd1_nat ~> dvd_lcm1
haftmann@62348
   550
  lcm_dvd1_int ~> dvd_lcm1
haftmann@62348
   551
  gcd_zero_nat ~> gcd_eq_0_iff
haftmann@62348
   552
  gcd_zero_int ~> gcd_eq_0_iff
haftmann@62348
   553
  gcd_dvd2_nat ~> gcd_dvd2
haftmann@62348
   554
  gcd_dvd2_int ~> gcd_dvd2
haftmann@62348
   555
  gcd_dvd1_nat ~> gcd_dvd1
haftmann@62348
   556
  gcd_dvd1_int ~> gcd_dvd1
haftmann@62348
   557
  int_numeral ~> of_nat_numeral
haftmann@62348
   558
  lcm_ac_nat ~> ac_simps
haftmann@62348
   559
  lcm_ac_int ~> ac_simps
haftmann@62348
   560
  gcd_ac_nat ~> ac_simps
haftmann@62348
   561
  gcd_ac_int ~> ac_simps
haftmann@62348
   562
  abs_int_eq ~> abs_of_nat
haftmann@62348
   563
  zless_int ~> of_nat_less_iff
haftmann@62348
   564
  zdiff_int ~> of_nat_diff
haftmann@62348
   565
  zadd_int ~> of_nat_add
haftmann@62348
   566
  int_mult ~> of_nat_mult
haftmann@62348
   567
  int_Suc ~> of_nat_Suc
haftmann@62348
   568
  inj_int ~> inj_of_nat
haftmann@62348
   569
  int_1 ~> of_nat_1
haftmann@62348
   570
  int_0 ~> of_nat_0
haftmann@62353
   571
  Lcm_empty_nat ~> Lcm_empty
haftmann@62353
   572
  Lcm_empty_int ~> Lcm_empty
haftmann@62353
   573
  Lcm_insert_nat ~> Lcm_insert
haftmann@62353
   574
  Lcm_insert_int ~> Lcm_insert
haftmann@62353
   575
  comp_fun_idem_gcd_nat ~> comp_fun_idem_gcd
haftmann@62353
   576
  comp_fun_idem_gcd_int ~> comp_fun_idem_gcd
haftmann@62353
   577
  comp_fun_idem_lcm_nat ~> comp_fun_idem_lcm
haftmann@62353
   578
  comp_fun_idem_lcm_int ~> comp_fun_idem_lcm
haftmann@62353
   579
  Lcm_eq_0 ~> Lcm_eq_0_I
haftmann@62353
   580
  Lcm0_iff ~> Lcm_0_iff
haftmann@62353
   581
  Lcm_dvd_int ~> Lcm_least
haftmann@62353
   582
  divides_mult_nat ~> divides_mult
haftmann@62353
   583
  divides_mult_int ~> divides_mult
haftmann@62353
   584
  lcm_0_nat ~> lcm_0_right
haftmann@62353
   585
  lcm_0_int ~> lcm_0_right
haftmann@62353
   586
  lcm_0_left_nat ~> lcm_0_left
haftmann@62353
   587
  lcm_0_left_int ~> lcm_0_left
haftmann@62353
   588
  dvd_gcd_D1_nat ~> dvd_gcdD1
haftmann@62353
   589
  dvd_gcd_D1_int ~> dvd_gcdD1
haftmann@62353
   590
  dvd_gcd_D2_nat ~> dvd_gcdD2
haftmann@62353
   591
  dvd_gcd_D2_int ~> dvd_gcdD2
haftmann@62353
   592
  coprime_dvd_mult_iff_nat ~> coprime_dvd_mult_iff
haftmann@62353
   593
  coprime_dvd_mult_iff_int ~> coprime_dvd_mult_iff
haftmann@62348
   594
  realpow_minus_mult ~> power_minus_mult
haftmann@62348
   595
  realpow_Suc_le_self ~> power_Suc_le_self
haftmann@62353
   596
  dvd_Gcd, dvd_Gcd_nat, dvd_Gcd_int removed in favour of Gcd_greatest
haftmann@62347
   597
INCOMPATIBILITY.
haftmann@62347
   598
wenzelm@62479
   599
* Session HOL-NSA has been renamed to HOL-Nonstandard_Analysis.
wenzelm@62479
   600
hoelzl@62975
   601
* In HOL-Probability the type of emeasure and nn_integral was changed
hoelzl@62975
   602
from ereal to ennreal:
hoelzl@62975
   603
  emeasure :: 'a measure => 'a set => ennreal
hoelzl@62975
   604
  nn_integral :: 'a measure => ('a => ennreal) => ennreal
hoelzl@62976
   605
INCOMPATIBILITY.
blanchet@62327
   606
wenzelm@63198
   607
wenzelm@62498
   608
*** ML ***
wenzelm@62498
   609
wenzelm@63227
   610
* Integer.gcd and Integer.lcm use efficient operations from the Poly/ML
wenzelm@63228
   611
library (notably for big integers). Subtle change of semantics:
wenzelm@63228
   612
Integer.gcd and Integer.lcm both normalize the sign, results are never
wenzelm@63228
   613
negative. This coincides with the definitions in HOL/GCD.thy.
wenzelm@63228
   614
INCOMPATIBILITY.
wenzelm@63227
   615
wenzelm@63212
   616
* Structure Rat for rational numbers is now an integral part of
wenzelm@63215
   617
Isabelle/ML, with special notation @int/nat or @int for numerals (an
wenzelm@63215
   618
abbreviation for antiquotation @{Pure.rat argument}) and ML pretty
wenzelm@63212
   619
printing. Standard operations on type Rat.rat are provided via ad-hoc
wenzelm@63215
   620
overloading of + - * / < <= > >= ~ abs. INCOMPATIBILITY, need to
wenzelm@63212
   621
use + instead of +/ etc. Moreover, exception Rat.DIVZERO has been
wenzelm@63212
   622
superseded by General.Div.
wenzelm@63198
   623
wenzelm@62861
   624
* The ML function "ML" provides easy access to run-time compilation.
wenzelm@62861
   625
This is particularly useful for conditional compilation, without
wenzelm@62861
   626
requiring separate files.
wenzelm@62861
   627
wenzelm@62851
   628
* Low-level ML system structures (like PolyML and RunCall) are no longer
wenzelm@62886
   629
exposed to Isabelle/ML user-space. Potential INCOMPATIBILITY.
wenzelm@62851
   630
wenzelm@62662
   631
* Antiquotation @{make_string} is available during Pure bootstrap --
wenzelm@62662
   632
with approximative output quality.
wenzelm@62662
   633
wenzelm@62498
   634
* Option ML_exception_debugger controls detailed exception trace via the
wenzelm@62498
   635
Poly/ML debugger. Relevant ML modules need to be compiled beforehand
wenzelm@62498
   636
with ML_file_debug, or with ML_file and option ML_debugger enabled. Note
wenzelm@62498
   637
debugger information requires consirable time and space: main
wenzelm@62498
   638
Isabelle/HOL with full debugger support may need ML_system_64.
wenzelm@62498
   639
wenzelm@62514
   640
* Local_Theory.restore has been renamed to Local_Theory.reset to
wenzelm@62514
   641
emphasize its disruptive impact on the cumulative context, notably the
wenzelm@62514
   642
scope of 'private' or 'qualified' names. Note that Local_Theory.reset is
wenzelm@62514
   643
only appropriate when targets are managed, e.g. starting from a global
wenzelm@62514
   644
theory and returning to it. Regular definitional packages should use
wenzelm@62514
   645
balanced blocks of Local_Theory.open_target versus
wenzelm@62514
   646
Local_Theory.close_target instead. Rare INCOMPATIBILITY.
wenzelm@62514
   647
wenzelm@62519
   648
* Structure TimeLimit (originally from the SML/NJ library) has been
wenzelm@62519
   649
replaced by structure Timeout, with slightly different signature.
wenzelm@62519
   650
INCOMPATIBILITY.
wenzelm@62519
   651
wenzelm@62551
   652
* Discontinued cd and pwd operations, which are not well-defined in a
wenzelm@62551
   653
multi-threaded environment. Note that files are usually located
wenzelm@62551
   654
relatively to the master directory of a theory (see also
wenzelm@62551
   655
File.full_path). Potential INCOMPATIBILITY.
wenzelm@62551
   656
wenzelm@63352
   657
* Binding.empty_atts supersedes Thm.empty_binding and
wenzelm@63352
   658
Attrib.empty_binding. Minor INCOMPATIBILITY.
wenzelm@63352
   659
wenzelm@62498
   660
wenzelm@62354
   661
*** System ***
wenzelm@62354
   662
wenzelm@62840
   663
* Many Isabelle tools that require a Java runtime system refer to the
wenzelm@62840
   664
settings ISABELLE_TOOL_JAVA_OPTIONS32 / ISABELLE_TOOL_JAVA_OPTIONS64,
wenzelm@62840
   665
depending on the underlying platform. The settings for "isabelle build"
wenzelm@62840
   666
ISABELLE_BUILD_JAVA_OPTIONS32 / ISABELLE_BUILD_JAVA_OPTIONS64 have been
wenzelm@62840
   667
discontinued. Potential INCOMPATIBILITY.
wenzelm@62840
   668
wenzelm@62591
   669
* The Isabelle system environment always ensures that the main
wenzelm@62591
   670
executables are found within the shell search $PATH: "isabelle" and
wenzelm@62591
   671
"isabelle_scala_script".
wenzelm@62591
   672
wenzelm@63226
   673
* Isabelle tools may consist of .scala files: the Scala compiler is
wenzelm@63226
   674
invoked on the spot. The source needs to define some object that extends
wenzelm@63226
   675
Isabelle_Tool.Body.
wenzelm@63226
   676
wenzelm@62591
   677
* The Isabelle ML process is now managed directly by Isabelle/Scala, and
wenzelm@62591
   678
shell scripts merely provide optional command-line access. In
wenzelm@62591
   679
particular:
wenzelm@62591
   680
wenzelm@62591
   681
  . Scala module ML_Process to connect to the raw ML process,
wenzelm@62591
   682
    with interaction via stdin/stdout/stderr or in batch mode;
wenzelm@62591
   683
  . command-line tool "isabelle console" as interactive wrapper;
wenzelm@62591
   684
  . command-line tool "isabelle process" as batch mode wrapper.
wenzelm@62588
   685
wenzelm@62588
   686
* The executable "isabelle_process" has been discontinued. Tools and
wenzelm@62588
   687
prover front-ends should use ML_Process or Isabelle_Process in
wenzelm@62591
   688
Isabelle/Scala. INCOMPATIBILITY.
wenzelm@62588
   689
wenzelm@62588
   690
* New command-line tool "isabelle process" supports ML evaluation of
wenzelm@62588
   691
literal expressions (option -e) or files (option -f) in the context of a
wenzelm@62588
   692
given heap image. Errors lead to premature exit of the ML process with
wenzelm@62588
   693
return code 1.
wenzelm@62588
   694
wenzelm@62588
   695
* Command-line tool "isabelle console" provides option -r to help to
wenzelm@62588
   696
bootstrapping Isabelle/Pure interactively.
wenzelm@62588
   697
wenzelm@62588
   698
* Command-line tool "isabelle yxml" has been discontinued.
wenzelm@62588
   699
INCOMPATIBILITY, use operations from the modules "XML" and "YXML" in
wenzelm@62588
   700
Isabelle/ML or Isabelle/Scala.
wenzelm@62588
   701
wenzelm@62549
   702
* File.bash_string, File.bash_path etc. represent Isabelle/ML and
wenzelm@62549
   703
Isabelle/Scala strings authentically within GNU bash. This is useful to
wenzelm@62549
   704
produce robust shell scripts under program control, without worrying
wenzelm@62549
   705
about spaces or special characters. Note that user output works via
wenzelm@62549
   706
Path.print (ML) or Path.toString (Scala). INCOMPATIBILITY, the old (and
wenzelm@62549
   707
less versatile) operations File.shell_quote, File.shell_path etc. have
wenzelm@62549
   708
been discontinued.
wenzelm@62549
   709
wenzelm@62591
   710
* SML/NJ and old versions of Poly/ML are no longer supported.
wenzelm@62591
   711
wenzelm@62642
   712
* Poly/ML heaps now follow the hierarchy of sessions, and thus require
wenzelm@62642
   713
much less disk space.
wenzelm@62642
   714
wenzelm@62354
   715
wenzelm@62354
   716
wenzelm@62031
   717
New in Isabelle2016 (February 2016)
wenzelm@62016
   718
-----------------------------------
wenzelm@60138
   719
wenzelm@61337
   720
*** General ***
wenzelm@61337
   721
wenzelm@62168
   722
* Eisbach is now based on Pure instead of HOL. Objects-logics may import
wenzelm@62168
   723
either the theory ~~/src/HOL/Eisbach/Eisbach (for HOL etc.) or
wenzelm@62168
   724
~~/src/HOL/Eisbach/Eisbach_Old_Appl_Syntax (for FOL, ZF etc.). Note that
wenzelm@62168
   725
the HOL-Eisbach session located in ~~/src/HOL/Eisbach/ contains further
wenzelm@62168
   726
examples that do require HOL.
wenzelm@62168
   727
wenzelm@62157
   728
* Better resource usage on all platforms (Linux, Windows, Mac OS X) for
wenzelm@62157
   729
both Isabelle/ML and Isabelle/Scala.  Slightly reduced heap space usage.
wenzelm@62157
   730
wenzelm@62017
   731
* Former "xsymbols" syntax with Isabelle symbols is used by default,
wenzelm@62017
   732
without any special print mode. Important ASCII replacement syntax
wenzelm@62017
   733
remains available under print mode "ASCII", but less important syntax
wenzelm@62017
   734
has been removed (see below).
wenzelm@62017
   735
wenzelm@62109
   736
* Support for more arrow symbols, with rendering in LaTeX and Isabelle
wenzelm@62109
   737
fonts: \<Lleftarrow> \<Rrightarrow> \<longlongleftarrow> \<longlongrightarrow> \<longlonglongleftarrow> \<longlonglongrightarrow>.
wenzelm@62017
   738
wenzelm@62108
   739
* Special notation \<struct> for the first implicit 'structure' in the
wenzelm@62108
   740
context has been discontinued. Rare INCOMPATIBILITY, use explicit
wenzelm@62108
   741
structure name instead, notably in indexed notation with block-subscript
wenzelm@62108
   742
(e.g. \<odot>\<^bsub>A\<^esub>).
wenzelm@62108
   743
wenzelm@62108
   744
* The glyph for \<diamond> in the IsabelleText font now corresponds better to its
wenzelm@62108
   745
counterpart \<box> as quantifier-like symbol. A small diamond is available as
wenzelm@62108
   746
\<diamondop>; the old symbol \<struct> loses this rendering and any special
wenzelm@62108
   747
meaning.
wenzelm@62108
   748
wenzelm@62017
   749
* Syntax for formal comments "-- text" now also supports the symbolic
wenzelm@62017
   750
form "\<comment> text". Command-line tool "isabelle update_cartouches -c" helps
wenzelm@62017
   751
to update old sources.
wenzelm@62017
   752
wenzelm@61337
   753
* Toplevel theorem statements have been simplified as follows:
wenzelm@61337
   754
wenzelm@61337
   755
  theorems             ~>  lemmas
wenzelm@61337
   756
  schematic_lemma      ~>  schematic_goal
wenzelm@61337
   757
  schematic_theorem    ~>  schematic_goal
wenzelm@61337
   758
  schematic_corollary  ~>  schematic_goal
wenzelm@61337
   759
wenzelm@61337
   760
Command-line tool "isabelle update_theorems" updates theory sources
wenzelm@61337
   761
accordingly.
wenzelm@61337
   762
wenzelm@61338
   763
* Toplevel theorem statement 'proposition' is another alias for
wenzelm@61338
   764
'theorem'.
wenzelm@61338
   765
wenzelm@62169
   766
* The old 'defs' command has been removed (legacy since Isabelle2014).
wenzelm@62169
   767
INCOMPATIBILITY, use regular 'definition' instead. Overloaded and/or
wenzelm@62169
   768
deferred definitions require a surrounding 'overloading' block.
wenzelm@62169
   769
wenzelm@61337
   770
wenzelm@60610
   771
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@60610
   772
wenzelm@60986
   773
* IDE support for the source-level debugger of Poly/ML, to work with
wenzelm@62253
   774
Isabelle/ML and official Standard ML. Option "ML_debugger" and commands
wenzelm@62253
   775
'ML_file_debug', 'ML_file_no_debug', 'SML_file_debug',
wenzelm@62253
   776
'SML_file_no_debug' control compilation of sources with or without
wenzelm@62253
   777
debugging information. The Debugger panel allows to set breakpoints (via
wenzelm@62253
   778
context menu), step through stopped threads, evaluate local ML
wenzelm@62253
   779
expressions etc. At least one Debugger view needs to be active to have
wenzelm@62253
   780
any effect on the running ML program.
wenzelm@60984
   781
wenzelm@61804
   782
* The State panel manages explicit proof state output, with dynamic
wenzelm@61804
   783
auto-update according to cursor movement. Alternatively, the jEdit
wenzelm@61804
   784
action "isabelle.update-state" (shortcut S+ENTER) triggers manual
wenzelm@61804
   785
update.
wenzelm@61729
   786
wenzelm@61729
   787
* The Output panel no longer shows proof state output by default, to
wenzelm@61729
   788
avoid GUI overcrowding. INCOMPATIBILITY, use the State panel instead or
wenzelm@61729
   789
enable option "editor_output_state".
wenzelm@61215
   790
wenzelm@61804
   791
* The text overview column (status of errors, warnings etc.) is updated
wenzelm@61804
   792
asynchronously, leading to much better editor reactivity. Moreover, the
wenzelm@61804
   793
full document node content is taken into account. The width of the
wenzelm@61804
   794
column is scaled according to the main text area font, for improved
wenzelm@61804
   795
visibility.
wenzelm@61804
   796
wenzelm@61804
   797
* The main text area no longer changes its color hue in outdated
wenzelm@61804
   798
situations. The text overview column takes over the role to indicate
wenzelm@61804
   799
unfinished edits in the PIDE pipeline. This avoids flashing text display
wenzelm@61804
   800
due to ad-hoc updates by auxiliary GUI components, such as the State
wenzelm@61804
   801
panel.
wenzelm@61804
   802
wenzelm@62254
   803
* Slightly improved scheduling for urgent print tasks (e.g. command
wenzelm@62254
   804
state output, interactive queries) wrt. long-running background tasks.
wenzelm@62017
   805
wenzelm@62017
   806
* Completion of symbols via prefix of \<name> or \<^name> or \name is
wenzelm@62017
   807
always possible, independently of the language context. It is never
wenzelm@62017
   808
implicit: a popup will show up unconditionally.
wenzelm@62017
   809
wenzelm@62017
   810
* Additional abbreviations for syntactic completion may be specified in
wenzelm@62017
   811
$ISABELLE_HOME/etc/abbrevs and $ISABELLE_HOME_USER/etc/abbrevs, with
wenzelm@62017
   812
support for simple templates using ASCII 007 (bell) as placeholder.
wenzelm@62017
   813
wenzelm@62234
   814
* Symbols \<oplus>, \<Oplus>, \<otimes>, \<Otimes>, \<odot>, \<Odot>, \<ominus>, \<oslash> no longer provide abbreviations for
wenzelm@62234
   815
completion like "+o", "*o", ".o" etc. -- due to conflicts with other
wenzelm@62234
   816
ASCII syntax. INCOMPATIBILITY, use plain backslash-completion or define
wenzelm@62234
   817
suitable abbreviations in $ISABELLE_HOME_USER/etc/abbrevs.
wenzelm@62234
   818
wenzelm@61483
   819
* Action "isabelle-emph" (with keyboard shortcut C+e LEFT) controls
wenzelm@61483
   820
emphasized text style; the effect is visible in document output, not in
wenzelm@61483
   821
the editor.
wenzelm@61483
   822
wenzelm@61483
   823
* Action "isabelle-reset" now uses keyboard shortcut C+e BACK_SPACE,
wenzelm@61483
   824
instead of former C+e LEFT.
wenzelm@61483
   825
wenzelm@61512
   826
* The command-line tool "isabelle jedit" and the isabelle.Main
wenzelm@62027
   827
application wrapper treat the default $USER_HOME/Scratch.thy more
wenzelm@61512
   828
uniformly, and allow the dummy file argument ":" to open an empty buffer
wenzelm@61512
   829
instead.
wenzelm@61512
   830
wenzelm@62017
   831
* New command-line tool "isabelle jedit_client" allows to connect to an
wenzelm@62017
   832
already running Isabelle/jEdit process. This achieves the effect of
wenzelm@62017
   833
single-instance applications seen on common GUI desktops.
wenzelm@62017
   834
wenzelm@61530
   835
* The default look-and-feel for Linux is the traditional "Metal", which
wenzelm@61530
   836
works better with GUI scaling for very high-resolution displays (e.g.
wenzelm@61530
   837
4K). Moreover, it is generally more robust than "Nimbus".
wenzelm@61530
   838
wenzelm@62163
   839
* Update to jedit-5.3.0, with improved GUI scaling and support of
wenzelm@62163
   840
high-resolution displays (e.g. 4K).
wenzelm@62163
   841
wenzelm@62034
   842
* The main Isabelle executable is managed as single-instance Desktop
wenzelm@62034
   843
application uniformly on all platforms: Linux, Windows, Mac OS X.
wenzelm@62034
   844
wenzelm@60610
   845
wenzelm@61405
   846
*** Document preparation ***
wenzelm@61405
   847
haftmann@63553
   848
* Text and ML antiquotation @{locale} for locales, similar to existing
haftmann@63553
   849
antiquotations for classes.
haftmann@63553
   850
wenzelm@62017
   851
* Commands 'paragraph' and 'subparagraph' provide additional section
wenzelm@62017
   852
headings. Thus there are 6 levels of standard headings, as in HTML.
wenzelm@62017
   853
wenzelm@62017
   854
* Command 'text_raw' has been clarified: input text is processed as in
wenzelm@62017
   855
'text' (with antiquotations and control symbols). The key difference is
wenzelm@62017
   856
the lack of the surrounding isabelle markup environment in output.
wenzelm@62017
   857
wenzelm@62017
   858
* Text is structured in paragraphs and nested lists, using notation that
wenzelm@62017
   859
is similar to Markdown. The control symbols for list items are as
wenzelm@62017
   860
follows:
wenzelm@62017
   861
wenzelm@62017
   862
  \<^item>  itemize
wenzelm@62017
   863
  \<^enum>  enumerate
wenzelm@62017
   864
  \<^descr>  description
wenzelm@62017
   865
wenzelm@61491
   866
* There is a new short form for antiquotations with a single argument
wenzelm@61491
   867
that is a cartouche: \<^name>\<open>...\<close> is equivalent to @{name \<open>...\<close>} and
wenzelm@61595
   868
\<open>...\<close> without control symbol is equivalent to @{cartouche \<open>...\<close>}.
wenzelm@61595
   869
\<^name> without following cartouche is equivalent to @{name}. The
wenzelm@61501
   870
standard Isabelle fonts provide glyphs to render important control
wenzelm@61501
   871
symbols, e.g. "\<^verbatim>", "\<^emph>", "\<^bold>".
wenzelm@61491
   872
wenzelm@61595
   873
* Antiquotations @{noindent}, @{smallskip}, @{medskip}, @{bigskip} with
wenzelm@61595
   874
corresponding control symbols \<^noindent>, \<^smallskip>, \<^medskip>, \<^bigskip> specify spacing formally, using
wenzelm@61595
   875
standard LaTeX macros of the same names.
wenzelm@61595
   876
wenzelm@61491
   877
* Antiquotation @{cartouche} in Isabelle/Pure is the same as @{text}.
wenzelm@61491
   878
Consequently, \<open>...\<close> without any decoration prints literal quasi-formal
wenzelm@61492
   879
text. Command-line tool "isabelle update_cartouches -t" helps to update
wenzelm@61492
   880
old sources, by approximative patching of the content of string and
wenzelm@61492
   881
cartouche tokens seen in theory sources.
wenzelm@61491
   882
wenzelm@61491
   883
* The @{text} antiquotation now ignores the antiquotation option
wenzelm@61491
   884
"source". The given text content is output unconditionally, without any
wenzelm@61491
   885
surrounding quotes etc. Subtle INCOMPATIBILITY, put quotes into the
wenzelm@61494
   886
argument where they are really intended, e.g. @{text \<open>"foo"\<close>}. Initial
wenzelm@61494
   887
or terminal spaces are ignored.
wenzelm@61491
   888
wenzelm@62017
   889
* Antiquotations @{emph} and @{bold} output LaTeX source recursively,
wenzelm@62017
   890
adding appropriate text style markup. These may be used in the short
wenzelm@62017
   891
form \<^emph>\<open>...\<close> and \<^bold>\<open>...\<close>.
wenzelm@62017
   892
wenzelm@62017
   893
* Document antiquotation @{footnote} outputs LaTeX source recursively,
wenzelm@62017
   894
marked as \footnote{}. This may be used in the short form \<^footnote>\<open>...\<close>.
wenzelm@62017
   895
wenzelm@62017
   896
* Antiquotation @{verbatim [display]} supports option "indent".
wenzelm@62017
   897
wenzelm@62017
   898
* Antiquotation @{theory_text} prints uninterpreted theory source text
wenzelm@62231
   899
(Isar outer syntax with command keywords etc.). This may be used in the
wenzelm@62231
   900
short form \<^theory_text>\<open>...\<close>. @{theory_text [display]} supports option "indent".
wenzelm@62017
   901
wenzelm@62017
   902
* Antiquotation @{doc ENTRY} provides a reference to the given
wenzelm@62017
   903
documentation, with a hyperlink in the Prover IDE.
wenzelm@62017
   904
wenzelm@62017
   905
* Antiquotations @{command}, @{method}, @{attribute} print checked
wenzelm@62017
   906
entities of the Isar language.
wenzelm@62017
   907
wenzelm@61471
   908
* HTML presentation uses the standard IsabelleText font and Unicode
wenzelm@61471
   909
rendering of Isabelle symbols like Isabelle/Scala/jEdit.  The former
wenzelm@61488
   910
print mode "HTML" loses its special meaning.
wenzelm@61471
   911
wenzelm@61405
   912
wenzelm@60406
   913
*** Isar ***
wenzelm@60406
   914
wenzelm@62205
   915
* Local goals ('have', 'show', 'hence', 'thus') allow structured rule
wenzelm@62205
   916
statements like fixes/assumes/shows in theorem specifications, but the
wenzelm@62205
   917
notation is postfix with keywords 'if' (or 'when') and 'for'. For
wenzelm@60555
   918
example:
wenzelm@60414
   919
wenzelm@60414
   920
  have result: "C x y"
wenzelm@60414
   921
    if "A x" and "B y"
wenzelm@60414
   922
    for x :: 'a and y :: 'a
wenzelm@60414
   923
    <proof>
wenzelm@60414
   924
wenzelm@60449
   925
The local assumptions are bound to the name "that". The result is
wenzelm@60449
   926
exported from context of the statement as usual. The above roughly
wenzelm@60414
   927
corresponds to a raw proof block like this:
wenzelm@60414
   928
wenzelm@60414
   929
  {
wenzelm@60414
   930
    fix x :: 'a and y :: 'a
wenzelm@60449
   931
    assume that: "A x" "B y"
wenzelm@60414
   932
    have "C x y" <proof>
wenzelm@60414
   933
  }
wenzelm@60414
   934
  note result = this
wenzelm@60406
   935
wenzelm@60555
   936
The keyword 'when' may be used instead of 'if', to indicate 'presume'
wenzelm@60555
   937
instead of 'assume' above.
wenzelm@60555
   938
wenzelm@61733
   939
* Assumptions ('assume', 'presume') allow structured rule statements
wenzelm@61733
   940
using 'if' and 'for', similar to 'have' etc. above. For example:
wenzelm@61658
   941
wenzelm@61658
   942
  assume result: "C x y"
wenzelm@61658
   943
    if "A x" and "B y"
wenzelm@61658
   944
    for x :: 'a and y :: 'a
wenzelm@61658
   945
wenzelm@61658
   946
This assumes "\<And>x y::'a. A x \<Longrightarrow> B y \<Longrightarrow> C x y" and produces a general
wenzelm@61658
   947
result as usual: "A ?x \<Longrightarrow> B ?y \<Longrightarrow> C ?x ?y".
wenzelm@61658
   948
wenzelm@61658
   949
Vacuous quantification in assumptions is omitted, i.e. a for-context
wenzelm@61658
   950
only effects propositions according to actual use of variables. For
wenzelm@61658
   951
example:
wenzelm@61658
   952
wenzelm@61658
   953
  assume "A x" and "B y" for x and y
wenzelm@61658
   954
wenzelm@61658
   955
is equivalent to:
wenzelm@61658
   956
wenzelm@61658
   957
  assume "\<And>x. A x" and "\<And>y. B y"
wenzelm@61658
   958
wenzelm@60595
   959
* The meaning of 'show' with Pure rule statements has changed: premises
wenzelm@60595
   960
are treated in the sense of 'assume', instead of 'presume'. This means,
wenzelm@62205
   961
a goal like "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" can be solved completely as
wenzelm@62205
   962
follows:
wenzelm@60595
   963
wenzelm@60595
   964
  show "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x"
wenzelm@60595
   965
wenzelm@60595
   966
or:
wenzelm@60595
   967
wenzelm@60595
   968
  show "C x" if "A x" "B x" for x
wenzelm@60595
   969
wenzelm@60595
   970
Rare INCOMPATIBILITY, the old behaviour may be recovered as follows:
wenzelm@60595
   971
wenzelm@60595
   972
  show "C x" when "A x" "B x" for x
wenzelm@60595
   973
wenzelm@60459
   974
* New command 'consider' states rules for generalized elimination and
wenzelm@60459
   975
case splitting. This is like a toplevel statement "theorem obtains" used
wenzelm@60459
   976
within a proof body; or like a multi-branch 'obtain' without activation
wenzelm@60459
   977
of the local context elements yet.
wenzelm@60459
   978
wenzelm@60455
   979
* Proof method "cases" allows to specify the rule as first entry of
wenzelm@60455
   980
chained facts.  This is particularly useful with 'consider':
wenzelm@60455
   981
wenzelm@60455
   982
  consider (a) A | (b) B | (c) C <proof>
wenzelm@60455
   983
  then have something
wenzelm@60455
   984
  proof cases
wenzelm@60455
   985
    case a
wenzelm@60455
   986
    then show ?thesis <proof>
wenzelm@60455
   987
  next
wenzelm@60455
   988
    case b
wenzelm@60455
   989
    then show ?thesis <proof>
wenzelm@60455
   990
  next
wenzelm@60455
   991
    case c
wenzelm@60455
   992
    then show ?thesis <proof>
wenzelm@60455
   993
  qed
wenzelm@60455
   994
wenzelm@60565
   995
* Command 'case' allows fact name and attribute specification like this:
wenzelm@60565
   996
wenzelm@60565
   997
  case a: (c xs)
wenzelm@60565
   998
  case a [attributes]: (c xs)
wenzelm@60565
   999
wenzelm@60565
  1000
Facts that are introduced by invoking the case context are uniformly
wenzelm@60565
  1001
qualified by "a"; the same name is used for the cumulative fact. The old
wenzelm@60565
  1002
form "case (c xs) [attributes]" is no longer supported. Rare
wenzelm@60565
  1003
INCOMPATIBILITY, need to adapt uses of case facts in exotic situations,
wenzelm@60565
  1004
and always put attributes in front.
wenzelm@60565
  1005
wenzelm@60618
  1006
* The standard proof method of commands 'proof' and '..' is now called
wenzelm@60618
  1007
"standard" to make semantically clear what it is; the old name "default"
wenzelm@60618
  1008
is still available as legacy for some time. Documentation now explains
wenzelm@60618
  1009
'..' more accurately as "by standard" instead of "by rule".
wenzelm@60618
  1010
wenzelm@62017
  1011
* Nesting of Isar goal structure has been clarified: the context after
wenzelm@62017
  1012
the initial backwards refinement is retained for the whole proof, within
wenzelm@62017
  1013
all its context sections (as indicated via 'next'). This is e.g.
wenzelm@62017
  1014
relevant for 'using', 'including', 'supply':
wenzelm@62017
  1015
wenzelm@62017
  1016
  have "A \<and> A" if a: A for A
wenzelm@62017
  1017
    supply [simp] = a
wenzelm@62017
  1018
  proof
wenzelm@62017
  1019
    show A by simp
wenzelm@62017
  1020
  next
wenzelm@62017
  1021
    show A by simp
wenzelm@62017
  1022
  qed
wenzelm@62017
  1023
wenzelm@62017
  1024
* Command 'obtain' binds term abbreviations (via 'is' patterns) in the
wenzelm@62017
  1025
proof body as well, abstracted over relevant parameters.
wenzelm@62017
  1026
wenzelm@62017
  1027
* Improved type-inference for theorem statement 'obtains': separate
wenzelm@62017
  1028
parameter scope for of each clause.
wenzelm@62017
  1029
wenzelm@62017
  1030
* Term abbreviations via 'is' patterns also work for schematic
wenzelm@62017
  1031
statements: result is abstracted over unknowns.
wenzelm@62017
  1032
wenzelm@60631
  1033
* Command 'subgoal' allows to impose some structure on backward
wenzelm@60631
  1034
refinements, to avoid proof scripts degenerating into long of 'apply'
wenzelm@60631
  1035
sequences. Further explanations and examples are given in the isar-ref
wenzelm@60631
  1036
manual.
wenzelm@60631
  1037
wenzelm@62017
  1038
* Command 'supply' supports fact definitions during goal refinement
wenzelm@62017
  1039
('apply' scripts).
wenzelm@62017
  1040
wenzelm@61166
  1041
* Proof method "goal_cases" turns the current subgoals into cases within
wenzelm@61166
  1042
the context; the conclusion is bound to variable ?case in each case. For
wenzelm@61166
  1043
example:
wenzelm@60617
  1044
wenzelm@60617
  1045
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x"
wenzelm@60622
  1046
  and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z"
wenzelm@61166
  1047
proof goal_cases
wenzelm@60622
  1048
  case (1 x)
wenzelm@60622
  1049
  then show ?case using \<open>A x\<close> \<open>B x\<close> sorry
wenzelm@60622
  1050
next
wenzelm@60622
  1051
  case (2 y z)
wenzelm@60622
  1052
  then show ?case using \<open>U y\<close> \<open>V z\<close> sorry
wenzelm@60622
  1053
qed
wenzelm@60622
  1054
wenzelm@60622
  1055
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x"
wenzelm@60622
  1056
  and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z"
wenzelm@61166
  1057
proof goal_cases
wenzelm@60617
  1058
  case prems: 1
wenzelm@60617
  1059
  then show ?case using prems sorry
wenzelm@60617
  1060
next
wenzelm@60617
  1061
  case prems: 2
wenzelm@60617
  1062
  then show ?case using prems sorry
wenzelm@60617
  1063
qed
wenzelm@60578
  1064
wenzelm@60581
  1065
* The undocumented feature of implicit cases goal1, goal2, goal3, etc.
wenzelm@60617
  1066
is marked as legacy, and will be removed eventually. The proof method
wenzelm@60617
  1067
"goals" achieves a similar effect within regular Isar; often it can be
wenzelm@60617
  1068
done more adequately by other means (e.g. 'consider').
wenzelm@60581
  1069
wenzelm@62017
  1070
* The vacuous fact "TERM x" may be established "by fact" or as `TERM x`
wenzelm@62017
  1071
as well, not just "by this" or "." as before.
wenzelm@60551
  1072
wenzelm@60554
  1073
* Method "sleep" succeeds after a real-time delay (in seconds). This is
wenzelm@60554
  1074
occasionally useful for demonstration and testing purposes.
wenzelm@60554
  1075
wenzelm@60406
  1076
wenzelm@60331
  1077
*** Pure ***
wenzelm@60331
  1078
wenzelm@61606
  1079
* Qualifiers in locale expressions default to mandatory ('!') regardless
wenzelm@61606
  1080
of the command. Previously, for 'locale' and 'sublocale' the default was
wenzelm@61606
  1081
optional ('?'). The old synatx '!' has been discontinued.
wenzelm@61606
  1082
INCOMPATIBILITY, remove '!' and add '?' as required.
ballarin@61565
  1083
ballarin@61566
  1084
* Keyword 'rewrites' identifies rewrite morphisms in interpretation
wenzelm@62017
  1085
commands. Previously, the keyword was 'where'. INCOMPATIBILITY.
ballarin@61566
  1086
ballarin@61701
  1087
* More gentle suppression of syntax along locale morphisms while
wenzelm@62017
  1088
printing terms. Previously 'abbreviation' and 'notation' declarations
wenzelm@62017
  1089
would be suppressed for morphisms except term identity. Now
ballarin@61701
  1090
'abbreviation' is also kept for morphims that only change the involved
wenzelm@62017
  1091
parameters, and only 'notation' is suppressed. This can be of great help
wenzelm@62017
  1092
when working with complex locale hierarchies, because proof states are
wenzelm@62017
  1093
displayed much more succinctly. It also means that only notation needs
wenzelm@62017
  1094
to be redeclared if desired, as illustrated by this example:
ballarin@61701
  1095
ballarin@61701
  1096
  locale struct = fixes composition :: "'a => 'a => 'a" (infixl "\<cdot>" 65)
ballarin@61701
  1097
  begin
ballarin@61701
  1098
    definition derived (infixl "\<odot>" 65) where ...
ballarin@61701
  1099
  end
ballarin@61701
  1100
ballarin@61701
  1101
  locale morphism =
ballarin@61701
  1102
    left: struct composition + right: struct composition'
ballarin@61701
  1103
    for composition (infix "\<cdot>" 65) and composition' (infix "\<cdot>''" 65)
ballarin@61701
  1104
  begin
ballarin@61701
  1105
    notation right.derived ("\<odot>''")
ballarin@61701
  1106
  end
ballarin@61701
  1107
wenzelm@61895
  1108
* Command 'global_interpretation' issues interpretations into global
wenzelm@61895
  1109
theories, with optional rewrite definitions following keyword 'defines'.
wenzelm@61895
  1110
wenzelm@61895
  1111
* Command 'sublocale' accepts optional rewrite definitions after keyword
haftmann@61675
  1112
'defines'.
haftmann@61675
  1113
wenzelm@61895
  1114
* Command 'permanent_interpretation' has been discontinued. Use
wenzelm@61895
  1115
'global_interpretation' or 'sublocale' instead. INCOMPATIBILITY.
haftmann@61670
  1116
wenzelm@61252
  1117
* Command 'print_definitions' prints dependencies of definitional
wenzelm@61252
  1118
specifications. This functionality used to be part of 'print_theory'.
wenzelm@61252
  1119
wenzelm@60331
  1120
* Configuration option rule_insts_schematic has been discontinued
wenzelm@62017
  1121
(intermediate legacy feature in Isabelle2015). INCOMPATIBILITY.
wenzelm@60331
  1122
wenzelm@62205
  1123
* Abbreviations in type classes now carry proper sort constraint. Rare
wenzelm@62205
  1124
INCOMPATIBILITY in situations where the previous misbehaviour has been
wenzelm@62205
  1125
exploited.
haftmann@60349
  1126
haftmann@60349
  1127
* Refinement of user-space type system in type classes: pseudo-local
wenzelm@62205
  1128
operations behave more similar to abbreviations. Potential
haftmann@60349
  1129
INCOMPATIBILITY in exotic situations.
haftmann@60349
  1130
haftmann@60349
  1131
nipkow@60171
  1132
*** HOL ***
nipkow@60171
  1133
wenzelm@62017
  1134
* The 'typedef' command has been upgraded from a partially checked
wenzelm@62017
  1135
"axiomatization", to a full definitional specification that takes the
wenzelm@62017
  1136
global collection of overloaded constant / type definitions into
wenzelm@62017
  1137
account. Type definitions with open dependencies on overloaded
wenzelm@62017
  1138
definitions need to be specified as "typedef (overloaded)". This
wenzelm@62017
  1139
provides extra robustness in theory construction. Rare INCOMPATIBILITY.
wenzelm@62017
  1140
wenzelm@62017
  1141
* Qualification of various formal entities in the libraries is done more
wenzelm@62017
  1142
uniformly via "context begin qualified definition ... end" instead of
wenzelm@62017
  1143
old-style "hide_const (open) ...". Consequently, both the defined
wenzelm@62017
  1144
constant and its defining fact become qualified, e.g. Option.is_none and
wenzelm@62017
  1145
Option.is_none_def. Occasional INCOMPATIBILITY in applications.
wenzelm@62017
  1146
wenzelm@62017
  1147
* Some old and rarely used ASCII replacement syntax has been removed.
wenzelm@62017
  1148
INCOMPATIBILITY, standard syntax with symbols should be used instead.
wenzelm@62017
  1149
The subsequent commands help to reproduce the old forms, e.g. to
wenzelm@62017
  1150
simplify porting old theories:
wenzelm@62017
  1151
wenzelm@62017
  1152
  notation iff  (infixr "<->" 25)
wenzelm@62017
  1153
wenzelm@62017
  1154
  notation Times  (infixr "<*>" 80)
wenzelm@62017
  1155
wenzelm@62017
  1156
  type_notation Map.map  (infixr "~=>" 0)
wenzelm@62017
  1157
  notation Map.map_comp  (infixl "o'_m" 55)
wenzelm@62017
  1158
wenzelm@62017
  1159
  type_notation FinFun.finfun ("(_ =>f /_)" [22, 21] 21)
wenzelm@62017
  1160
wenzelm@62017
  1161
  notation FuncSet.funcset  (infixr "->" 60)
wenzelm@62017
  1162
  notation FuncSet.extensional_funcset  (infixr "->\<^sub>E" 60)
wenzelm@62017
  1163
wenzelm@62017
  1164
  notation Omega_Words_Fun.conc (infixr "conc" 65)
wenzelm@62017
  1165
wenzelm@62017
  1166
  notation Preorder.equiv ("op ~~")
wenzelm@62017
  1167
    and Preorder.equiv ("(_/ ~~ _)" [51, 51] 50)
wenzelm@62017
  1168
wenzelm@62017
  1169
  notation (in topological_space) tendsto (infixr "--->" 55)
wenzelm@62017
  1170
  notation (in topological_space) LIMSEQ ("((_)/ ----> (_))" [60, 60] 60)
wenzelm@62017
  1171
  notation LIM ("((_)/ -- (_)/ --> (_))" [60, 0, 60] 60)
wenzelm@62017
  1172
wenzelm@62017
  1173
  notation NSA.approx (infixl "@=" 50)
wenzelm@62017
  1174
  notation NSLIMSEQ ("((_)/ ----NS> (_))" [60, 60] 60)
wenzelm@62017
  1175
  notation NSLIM ("((_)/ -- (_)/ --NS> (_))" [60, 0, 60] 60)
wenzelm@62017
  1176
wenzelm@62017
  1177
* The alternative notation "\<Colon>" for type and sort constraints has been
wenzelm@62017
  1178
removed: in LaTeX document output it looks the same as "::".
wenzelm@62017
  1179
INCOMPATIBILITY, use plain "::" instead.
wenzelm@62017
  1180
wenzelm@62017
  1181
* Commands 'inductive' and 'inductive_set' work better when names for
wenzelm@62017
  1182
intro rules are omitted: the "cases" and "induct" rules no longer
wenzelm@62017
  1183
declare empty case_names, but no case_names at all. This allows to use
wenzelm@62017
  1184
numbered cases in proofs, without requiring method "goal_cases".
wenzelm@62017
  1185
wenzelm@62017
  1186
* Inductive definitions ('inductive', 'coinductive', etc.) expose
wenzelm@62017
  1187
low-level facts of the internal construction only if the option
wenzelm@62093
  1188
"inductive_internals" is enabled. This refers to the internal predicate
wenzelm@62017
  1189
definition and its monotonicity result. Rare INCOMPATIBILITY.
wenzelm@62017
  1190
wenzelm@62017
  1191
* Recursive function definitions ('fun', 'function', 'partial_function')
wenzelm@62017
  1192
expose low-level facts of the internal construction only if the option
wenzelm@62205
  1193
"function_internals" is enabled. Its internal inductive definition is
wenzelm@62205
  1194
also subject to "inductive_internals". Rare INCOMPATIBILITY.
wenzelm@62093
  1195
wenzelm@62093
  1196
* BNF datatypes ('datatype', 'codatatype', etc.) expose low-level facts
wenzelm@62093
  1197
of the internal construction only if the option "bnf_internals" is
wenzelm@62093
  1198
enabled. This supersedes the former option "bnf_note_all". Rare
wenzelm@62093
  1199
INCOMPATIBILITY.
wenzelm@62017
  1200
wenzelm@62017
  1201
* Combinator to represent case distinction on products is named
wenzelm@62017
  1202
"case_prod", uniformly, discontinuing any input aliasses. Very popular
wenzelm@62017
  1203
theorem aliasses have been retained.
wenzelm@62017
  1204
haftmann@61424
  1205
Consolidated facts:
haftmann@61424
  1206
  PairE ~> prod.exhaust
haftmann@61424
  1207
  Pair_eq ~> prod.inject
haftmann@61424
  1208
  pair_collapse ~> prod.collapse
haftmann@61424
  1209
  Pair_fst_snd_eq ~> prod_eq_iff
haftmann@61424
  1210
  split_twice ~> prod.case_distrib
haftmann@61424
  1211
  split_weak_cong ~> prod.case_cong_weak
haftmann@61424
  1212
  split_split ~> prod.split
haftmann@61424
  1213
  split_split_asm ~> prod.split_asm
haftmann@61424
  1214
  splitI ~> case_prodI
haftmann@61424
  1215
  splitD ~> case_prodD
haftmann@61424
  1216
  splitI2 ~> case_prodI2
haftmann@61424
  1217
  splitI2' ~> case_prodI2'
haftmann@61424
  1218
  splitE ~> case_prodE
haftmann@61424
  1219
  splitE' ~> case_prodE'
haftmann@61424
  1220
  split_pair ~> case_prod_Pair
haftmann@61424
  1221
  split_eta ~> case_prod_eta
haftmann@61424
  1222
  split_comp ~> case_prod_comp
haftmann@61424
  1223
  mem_splitI ~> mem_case_prodI
haftmann@61424
  1224
  mem_splitI2 ~> mem_case_prodI2
haftmann@61424
  1225
  mem_splitE ~> mem_case_prodE
haftmann@61424
  1226
  The_split ~> The_case_prod
haftmann@61424
  1227
  cond_split_eta ~> cond_case_prod_eta
haftmann@61424
  1228
  Collect_split_in_rel_leE ~> Collect_case_prod_in_rel_leE
haftmann@61424
  1229
  Collect_split_in_rel_leI ~> Collect_case_prod_in_rel_leI
haftmann@61424
  1230
  in_rel_Collect_split_eq ~> in_rel_Collect_case_prod_eq
haftmann@61424
  1231
  Collect_split_Grp_eqD ~> Collect_case_prod_Grp_eqD
haftmann@61424
  1232
  Collect_split_Grp_inD ~> Collect_case_prod_Grp_in
haftmann@61424
  1233
  Domain_Collect_split ~> Domain_Collect_case_prod
haftmann@61424
  1234
  Image_Collect_split ~> Image_Collect_case_prod
haftmann@61424
  1235
  Range_Collect_split ~> Range_Collect_case_prod
haftmann@61424
  1236
  Eps_split ~> Eps_case_prod
haftmann@61424
  1237
  Eps_split_eq ~> Eps_case_prod_eq
haftmann@61424
  1238
  split_rsp ~> case_prod_rsp
haftmann@61424
  1239
  curry_split ~> curry_case_prod
haftmann@61424
  1240
  split_curry ~> case_prod_curry
wenzelm@62017
  1241
haftmann@61424
  1242
Changes in structure HOLogic:
haftmann@61424
  1243
  split_const ~> case_prod_const
haftmann@61424
  1244
  mk_split ~> mk_case_prod
haftmann@61424
  1245
  mk_psplits ~> mk_ptupleabs
haftmann@61424
  1246
  strip_psplits ~> strip_ptupleabs
wenzelm@62017
  1247
wenzelm@62017
  1248
INCOMPATIBILITY.
wenzelm@62017
  1249
wenzelm@62017
  1250
* The coercions to type 'real' have been reorganised. The function
wenzelm@62017
  1251
'real' is no longer overloaded, but has type 'nat => real' and
wenzelm@62017
  1252
abbreviates of_nat for that type. Also 'real_of_int :: int => real'
wenzelm@62017
  1253
abbreviates of_int for that type. Other overloaded instances of 'real'
wenzelm@62017
  1254
have been replaced by 'real_of_ereal' and 'real_of_float'.
wenzelm@62017
  1255
lp15@61694
  1256
Consolidated facts (among others):
lp15@61694
  1257
  real_of_nat_le_iff -> of_nat_le_iff
lp15@61694
  1258
  real_of_nat_numeral of_nat_numeral
lp15@61694
  1259
  real_of_int_zero of_int_0
lp15@61694
  1260
  real_of_nat_zero of_nat_0
lp15@61694
  1261
  real_of_one of_int_1
lp15@61694
  1262
  real_of_int_add of_int_add
lp15@61694
  1263
  real_of_nat_add of_nat_add
lp15@61694
  1264
  real_of_int_diff of_int_diff
lp15@61694
  1265
  real_of_nat_diff of_nat_diff
lp15@61694
  1266
  floor_subtract floor_diff_of_int
lp15@61694
  1267
  real_of_int_inject of_int_eq_iff
lp15@61694
  1268
  real_of_int_gt_zero_cancel_iff of_int_0_less_iff
lp15@61694
  1269
  real_of_int_ge_zero_cancel_iff of_int_0_le_iff
lp15@61694
  1270
  real_of_nat_ge_zero of_nat_0_le_iff
lp15@61694
  1271
  real_of_int_ceiling_ge le_of_int_ceiling
lp15@61694
  1272
  ceiling_less_eq ceiling_less_iff
lp15@61694
  1273
  ceiling_le_eq ceiling_le_iff
lp15@61694
  1274
  less_floor_eq less_floor_iff
lp15@61694
  1275
  floor_less_eq floor_less_iff
lp15@61694
  1276
  floor_divide_eq_div floor_divide_of_int_eq
lp15@61694
  1277
  real_of_int_zero_cancel of_nat_eq_0_iff
lp15@61694
  1278
  ceiling_real_of_int ceiling_of_int
wenzelm@62017
  1279
wenzelm@62017
  1280
INCOMPATIBILITY.
wenzelm@61143
  1281
wenzelm@60841
  1282
* Theory Map: lemma map_of_is_SomeD was a clone of map_of_SomeD and has
wenzelm@60841
  1283
been removed. INCOMPATIBILITY.
wenzelm@60841
  1284
lars@60712
  1285
* Quickcheck setup for finite sets.
lars@60712
  1286
nipkow@60171
  1287
* Discontinued simp_legacy_precond. Potential INCOMPATIBILITY.
wenzelm@60138
  1288
blanchet@60306
  1289
* Sledgehammer:
blanchet@61318
  1290
  - The MaSh relevance filter has been sped up.
blanchet@60306
  1291
  - Proof reconstruction has been improved, to minimize the incidence of
blanchet@60306
  1292
    cases where Sledgehammer gives a proof that does not work.
blanchet@60306
  1293
  - Auto Sledgehammer now minimizes and preplays the results.
blanchet@61030
  1294
  - Handle Vampire 4.0 proof output without raising exception.
blanchet@61043
  1295
  - Eliminated "MASH" environment variable. Use the "MaSh" option in
blanchet@61043
  1296
    Isabelle/jEdit instead. INCOMPATIBILITY.
blanchet@61317
  1297
  - Eliminated obsolete "blocking" option and related subcommands.
blanchet@60306
  1298
blanchet@60310
  1299
* Nitpick:
blanchet@61325
  1300
  - Fixed soundness bug in translation of "finite" predicate.
blanchet@61324
  1301
  - Fixed soundness bug in "destroy_constrs" optimization.
blanchet@62080
  1302
  - Fixed soundness bug in translation of "rat" type.
blanchet@60310
  1303
  - Removed "check_potential" and "check_genuine" options.
blanchet@61317
  1304
  - Eliminated obsolete "blocking" option.
blanchet@60310
  1305
wenzelm@62027
  1306
* (Co)datatype package:
blanchet@61345
  1307
  - New commands "lift_bnf" and "copy_bnf" for lifting (copying) a BNF
blanchet@61345
  1308
    structure on the raw type to an abstract type defined using typedef.
blanchet@61345
  1309
  - Always generate "case_transfer" theorem.
wenzelm@62235
  1310
  - For mutual types, generate slightly stronger "rel_induct",
wenzelm@62235
  1311
    "rel_coinduct", and "coinduct" theorems. INCOMPATIBLITY.
blanchet@61552
  1312
  - Allow discriminators and selectors with the same name as the type
blanchet@61552
  1313
    being defined.
blanchet@61552
  1314
  - Avoid various internal name clashes (e.g., 'datatype f = f').
traytel@60920
  1315
wenzelm@62098
  1316
* Transfer: new methods for interactive debugging of 'transfer' and
wenzelm@62098
  1317
'transfer_prover': 'transfer_start', 'transfer_step', 'transfer_end',
wenzelm@62098
  1318
'transfer_prover_start' and 'transfer_prover_end'.
kuncar@61370
  1319
kleing@62118
  1320
* New diagnostic command print_record for displaying record definitions.
kleing@62118
  1321
haftmann@60868
  1322
* Division on integers is bootstrapped directly from division on
wenzelm@62017
  1323
naturals and uses generic numeral algorithm for computations. Slight
wenzelm@62017
  1324
INCOMPATIBILITY, simproc numeral_divmod replaces and generalizes former
wenzelm@62017
  1325
simprocs binary_int_div and binary_int_mod
wenzelm@62017
  1326
wenzelm@62017
  1327
* Tightened specification of class semiring_no_zero_divisors. Minor
haftmann@60516
  1328
INCOMPATIBILITY.
haftmann@60516
  1329
haftmann@60688
  1330
* Class algebraic_semidom introduces common algebraic notions of
wenzelm@62017
  1331
integral (semi)domains, particularly units. Although logically subsumed
wenzelm@62017
  1332
by fields, is is not a super class of these in order not to burden
wenzelm@62017
  1333
fields with notions that are trivial there.
wenzelm@62017
  1334
wenzelm@62017
  1335
* Class normalization_semidom specifies canonical representants for
wenzelm@62017
  1336
equivalence classes of associated elements in an integral (semi)domain.
wenzelm@62017
  1337
This formalizes associated elements as well.
haftmann@60688
  1338
haftmann@60688
  1339
* Abstract specification of gcd/lcm operations in classes semiring_gcd,
wenzelm@62017
  1340
semiring_Gcd, semiring_Lcd. Minor INCOMPATIBILITY: facts gcd_nat.commute
wenzelm@62017
  1341
and gcd_int.commute are subsumed by gcd.commute, as well as
wenzelm@62017
  1342
gcd_nat.assoc and gcd_int.assoc by gcd.assoc.
wenzelm@62017
  1343
wenzelm@62017
  1344
* Former constants Fields.divide (_ / _) and Divides.div (_ div _) are
wenzelm@62017
  1345
logically unified to Rings.divide in syntactic type class Rings.divide,
wenzelm@62017
  1346
with infix syntax (_ div _). Infix syntax (_ / _) for field division is
wenzelm@62017
  1347
added later as abbreviation in class Fields.inverse. INCOMPATIBILITY,
wenzelm@62017
  1348
instantiations must refer to Rings.divide rather than the former
wenzelm@62017
  1349
separate constants, hence infix syntax (_ / _) is usually not available
wenzelm@62017
  1350
during instantiation.
wenzelm@62017
  1351
wenzelm@62017
  1352
* New cancellation simprocs for boolean algebras to cancel complementary
wenzelm@62017
  1353
terms for sup and inf. For example, "sup x (sup y (- x))" simplifies to
wenzelm@62017
  1354
"top". INCOMPATIBILITY.
Andreas@61628
  1355
hoelzl@62101
  1356
* Class uniform_space introduces uniform spaces btw topological spaces
hoelzl@62101
  1357
and metric spaces. Minor INCOMPATIBILITY: open_<type>_def needs to be
wenzelm@62205
  1358
introduced in the form of an uniformity. Some constants are more general
wenzelm@62205
  1359
now, it may be necessary to add type class constraints.
hoelzl@62101
  1360
hoelzl@62101
  1361
  open_real_def \<leadsto> open_dist
hoelzl@62101
  1362
  open_complex_def \<leadsto> open_dist
hoelzl@62101
  1363
wenzelm@62026
  1364
* Library/Monad_Syntax: notation uses symbols \<bind> and \<then>. INCOMPATIBILITY.
wenzelm@62026
  1365
Mathias@60397
  1366
* Library/Multiset:
Mathias@60397
  1367
  - Renamed multiset inclusion operators:
Mathias@60397
  1368
      < ~> <#
blanchet@62208
  1369
      > ~> >#
Mathias@60397
  1370
      <= ~> <=#
blanchet@62208
  1371
      >= ~> >=#
Mathias@60397
  1372
      \<le> ~> \<le>#
blanchet@62208
  1373
      \<ge> ~> \<ge>#
Mathias@60397
  1374
    INCOMPATIBILITY.
blanchet@62209
  1375
  - Added multiset inclusion operator syntax:
blanchet@62209
  1376
      \<subset>#
blanchet@62209
  1377
      \<subseteq>#
blanchet@62209
  1378
      \<supset>#
blanchet@62209
  1379
      \<supseteq>#
Mathias@60397
  1380
  - "'a multiset" is no longer an instance of the "order",
Mathias@60397
  1381
    "ordered_ab_semigroup_add_imp_le", "ordered_cancel_comm_monoid_diff",
Mathias@60397
  1382
    "semilattice_inf", and "semilattice_sup" type classes. The theorems
Mathias@60397
  1383
    previously provided by these type classes (directly or indirectly)
Mathias@60397
  1384
    are now available through the "subset_mset" interpretation
Mathias@60397
  1385
    (e.g. add_mono ~> subset_mset.add_mono).
Mathias@60397
  1386
    INCOMPATIBILITY.
nipkow@60497
  1387
  - Renamed conversions:
nipkow@60515
  1388
      multiset_of ~> mset
nipkow@60515
  1389
      multiset_of_set ~> mset_set
nipkow@60497
  1390
      set_of ~> set_mset
nipkow@60497
  1391
    INCOMPATIBILITY
Mathias@60398
  1392
  - Renamed lemmas:
Mathias@60398
  1393
      mset_le_def ~> subseteq_mset_def
Mathias@60398
  1394
      mset_less_def ~> subset_mset_def
Mathias@60400
  1395
      less_eq_multiset.rep_eq ~> subseteq_mset_def
Mathias@60400
  1396
    INCOMPATIBILITY
Mathias@60400
  1397
  - Removed lemmas generated by lift_definition:
wenzelm@62235
  1398
    less_eq_multiset.abs_eq, less_eq_multiset.rsp,
wenzelm@62235
  1399
    less_eq_multiset.transfer, less_eq_multiset_def
Mathias@60400
  1400
    INCOMPATIBILITY
wenzelm@60007
  1401
wenzelm@62017
  1402
* Library/Omega_Words_Fun: Infinite words modeled as functions nat \<Rightarrow> 'a.
wenzelm@62017
  1403
wenzelm@62017
  1404
* Library/Bourbaki_Witt_Fixpoint: Added formalisation of the
wenzelm@62017
  1405
Bourbaki-Witt fixpoint theorem for increasing functions in
wenzelm@62017
  1406
chain-complete partial orders.
wenzelm@62017
  1407
wenzelm@62017
  1408
* Library/Old_Recdef: discontinued obsolete 'defer_recdef' command.
wenzelm@62017
  1409
Minor INCOMPATIBILITY, use 'function' instead.
wenzelm@62017
  1410
wenzelm@62065
  1411
* Library/Periodic_Fun: a locale that provides convenient lemmas for
wenzelm@62065
  1412
periodic functions.
eberlm@62060
  1413
wenzelm@62098
  1414
* Library/Formal_Power_Series: proper definition of division (with
wenzelm@62098
  1415
remainder) for formal power series; instances for Euclidean Ring and
wenzelm@62098
  1416
GCD.
eberlm@62086
  1417
wenzelm@62084
  1418
* HOL-Imperative_HOL: obsolete theory Legacy_Mrec has been removed.
wenzelm@62084
  1419
wenzelm@62084
  1420
* HOL-Statespace: command 'statespace' uses mandatory qualifier for
wenzelm@62084
  1421
import of parent, as for general 'locale' expressions. INCOMPATIBILITY,
wenzelm@62084
  1422
remove '!' and add '?' as required.
wenzelm@62084
  1423
wenzelm@62237
  1424
* HOL-Decision_Procs: The "approximation" method works with "powr"
wenzelm@62237
  1425
(exponentiation on real numbers) again.
wenzelm@62237
  1426
wenzelm@62084
  1427
* HOL-Multivariate_Analysis: theory Cauchy_Integral_Thm with Contour
wenzelm@62084
  1428
integrals (= complex path integrals), Cauchy's integral theorem, winding
wenzelm@62084
  1429
numbers and Cauchy's integral formula, Liouville theorem, Fundamental
wenzelm@62084
  1430
Theorem of Algebra. Ported from HOL Light.
wenzelm@62084
  1431
wenzelm@62084
  1432
* HOL-Multivariate_Analysis: topological concepts such as connected
wenzelm@62017
  1433
components, homotopic paths and the inside or outside of a set.
wenzelm@61121
  1434
wenzelm@62084
  1435
* HOL-Multivariate_Analysis: radius of convergence of power series and
wenzelm@62065
  1436
various summability tests; Harmonic numbers and the Euler–Mascheroni
wenzelm@62065
  1437
constant; the Generalised Binomial Theorem; the complex and real
wenzelm@62065
  1438
Gamma/log-Gamma/Digamma/ Polygamma functions and their most important
wenzelm@62065
  1439
properties.
eberlm@62060
  1440
wenzelm@62084
  1441
* HOL-Probability: The central limit theorem based on Levy's uniqueness
wenzelm@62084
  1442
and continuity theorems, weak convergence, and characterisitc functions.
wenzelm@62084
  1443
wenzelm@62084
  1444
* HOL-Data_Structures: new and growing session of standard data
wenzelm@62084
  1445
structures.
lammich@61178
  1446
wenzelm@60479
  1447
wenzelm@60793
  1448
*** ML ***
wenzelm@60793
  1449
wenzelm@62017
  1450
* The following combinators for low-level profiling of the ML runtime
wenzelm@62017
  1451
system are available:
wenzelm@62017
  1452
wenzelm@62017
  1453
  profile_time          (*CPU time*)
wenzelm@62017
  1454
  profile_time_thread   (*CPU time on this thread*)
wenzelm@62017
  1455
  profile_allocations   (*overall heap allocations*)
wenzelm@62017
  1456
wenzelm@62017
  1457
* Antiquotation @{undefined} or \<^undefined> inlines (raise Match).
wenzelm@62017
  1458
wenzelm@62075
  1459
* Antiquotation @{method NAME} inlines the (checked) name of the given
wenzelm@62075
  1460
Isar proof method.
wenzelm@62075
  1461
wenzelm@61922
  1462
* Pretty printing of Poly/ML compiler output in Isabelle has been
wenzelm@61922
  1463
improved: proper treatment of break offsets and blocks with consistent
wenzelm@61922
  1464
breaks.
wenzelm@61922
  1465
wenzelm@61268
  1466
* The auxiliary module Pure/display.ML has been eliminated. Its
wenzelm@61268
  1467
elementary thm print operations are now in Pure/more_thm.ML and thus
wenzelm@61268
  1468
called Thm.pretty_thm, Thm.string_of_thm etc. INCOMPATIBILITY.
wenzelm@61268
  1469
wenzelm@61144
  1470
* Simproc programming interfaces have been simplified:
wenzelm@61144
  1471
Simplifier.make_simproc and Simplifier.define_simproc supersede various
wenzelm@61144
  1472
forms of Simplifier.mk_simproc, Simplifier.simproc_global etc. Note that
wenzelm@61144
  1473
term patterns for the left-hand sides are specified with implicitly
wenzelm@61144
  1474
fixed variables, like top-level theorem statements. INCOMPATIBILITY.
wenzelm@61144
  1475
wenzelm@60802
  1476
* Instantiation rules have been re-organized as follows:
wenzelm@60802
  1477
wenzelm@60802
  1478
  Thm.instantiate  (*low-level instantiation with named arguments*)
wenzelm@60802
  1479
  Thm.instantiate' (*version with positional arguments*)
wenzelm@60802
  1480
wenzelm@60802
  1481
  Drule.infer_instantiate  (*instantiation with type inference*)
wenzelm@60802
  1482
  Drule.infer_instantiate'  (*version with positional arguments*)
wenzelm@60802
  1483
wenzelm@60802
  1484
The LHS only requires variable specifications, instead of full terms.
wenzelm@60802
  1485
Old cterm_instantiate is superseded by infer_instantiate.
wenzelm@60802
  1486
INCOMPATIBILITY, need to re-adjust some ML names and types accordingly.
wenzelm@60802
  1487
wenzelm@60793
  1488
* Old tactic shorthands atac, rtac, etac, dtac, ftac have been
wenzelm@60793
  1489
discontinued. INCOMPATIBILITY, use regular assume_tac, resolve_tac etc.
wenzelm@60793
  1490
instead (with proper context).
wenzelm@60642
  1491
wenzelm@60642
  1492
* Thm.instantiate (and derivatives) no longer require the LHS of the
wenzelm@60642
  1493
instantiation to be certified: plain variables are given directly.
wenzelm@60642
  1494
wenzelm@60707
  1495
* Subgoal.SUBPROOF and Subgoal.FOCUS combinators use anonymous
wenzelm@60707
  1496
quasi-bound variables (like the Simplifier), instead of accidentally
wenzelm@60707
  1497
named local fixes. This has the potential to improve stability of proof
wenzelm@60707
  1498
tools, but can also cause INCOMPATIBILITY for tools that don't observe
wenzelm@60707
  1499
the proof context discipline.
wenzelm@60707
  1500
wenzelm@62017
  1501
* Isar proof methods are based on a slightly more general type
wenzelm@62017
  1502
context_tactic, which allows to change the proof context dynamically
wenzelm@62017
  1503
(e.g. to update cases) and indicate explicit Seq.Error results. Former
wenzelm@62017
  1504
METHOD_CASES is superseded by CONTEXT_METHOD; further combinators are
wenzelm@62017
  1505
provided in src/Pure/Isar/method.ML for convenience. INCOMPATIBILITY.
wenzelm@61887
  1506
wenzelm@60642
  1507
wenzelm@60983
  1508
*** System ***
wenzelm@60983
  1509
wenzelm@62525
  1510
* Command-line tool "isabelle console" enables print mode "ASCII".
wenzelm@61958
  1511
wenzelm@62017
  1512
* Command-line tool "isabelle update_then" expands old Isar command
wenzelm@62017
  1513
conflations:
wenzelm@62017
  1514
wenzelm@62017
  1515
    hence  ~>  then have
wenzelm@62017
  1516
    thus   ~>  then show
wenzelm@62017
  1517
wenzelm@62017
  1518
This syntax is more orthogonal and improves readability and
wenzelm@62017
  1519
maintainability of proofs.
wenzelm@62017
  1520
wenzelm@61602
  1521
* Global session timeout is multiplied by timeout_scale factor. This
wenzelm@61602
  1522
allows to adjust large-scale tests (e.g. AFP) to overall hardware
wenzelm@61602
  1523
performance.
wenzelm@61602
  1524
wenzelm@61174
  1525
* Property values in etc/symbols may contain spaces, if written with the
wenzelm@62671
  1526
replacement character "␣" (Unicode point 0x2324). For example:
wenzelm@62671
  1527
wenzelm@62671
  1528
    \<star>  code: 0x0022c6  group: operator  font: Deja␣Vu␣Sans␣Mono
wenzelm@61174
  1529
wenzelm@60996
  1530
* Java runtime environment for x86_64-windows allows to use larger heap
wenzelm@60996
  1531
space.
wenzelm@60996
  1532
wenzelm@61135
  1533
* Java runtime options are determined separately for 32bit vs. 64bit
wenzelm@61135
  1534
platforms as follows.
wenzelm@61135
  1535
wenzelm@61135
  1536
  - Isabelle desktop application: platform-specific files that are
wenzelm@61135
  1537
    associated with the main app bundle
wenzelm@61135
  1538
wenzelm@61135
  1539
  - isabelle jedit: settings
wenzelm@61135
  1540
    JEDIT_JAVA_SYSTEM_OPTIONS
wenzelm@61135
  1541
    JEDIT_JAVA_OPTIONS32 vs. JEDIT_JAVA_OPTIONS64
wenzelm@61135
  1542
wenzelm@61135
  1543
  - isabelle build: settings
wenzelm@61135
  1544
    ISABELLE_BUILD_JAVA_OPTIONS32 vs. ISABELLE_BUILD_JAVA_OPTIONS64
wenzelm@61135
  1545
wenzelm@61294
  1546
* Bash shell function "jvmpath" has been renamed to "platform_path": it
wenzelm@61294
  1547
is relevant both for Poly/ML and JVM processes.
wenzelm@61294
  1548
wenzelm@62017
  1549
* Poly/ML default platform architecture may be changed from 32bit to
wenzelm@62205
  1550
64bit via system option ML_system_64. A system restart (and rebuild) is
wenzelm@62205
  1551
required after change.
wenzelm@62017
  1552
wenzelm@62017
  1553
* Poly/ML 5.6 runs natively on x86-windows and x86_64-windows, which
wenzelm@62017
  1554
both allow larger heap space than former x86-cygwin.
wenzelm@62017
  1555
wenzelm@62157
  1556
* Heap images are 10-15% smaller due to less wasteful persistent theory
wenzelm@62157
  1557
content (using ML type theory_id instead of theory);
wenzelm@62157
  1558
wenzelm@60983
  1559
wenzelm@60479
  1560
wenzelm@60010
  1561
New in Isabelle2015 (May 2015)
wenzelm@60010
  1562
------------------------------
wenzelm@57695
  1563
wenzelm@57941
  1564
*** General ***
wenzelm@57941
  1565
wenzelm@59939
  1566
* Local theory specification commands may have a 'private' or
wenzelm@59990
  1567
'qualified' modifier to restrict name space accesses to the local scope,
wenzelm@59939
  1568
as provided by some "context begin ... end" block. For example:
wenzelm@59926
  1569
wenzelm@59926
  1570
  context
wenzelm@59926
  1571
  begin
wenzelm@59926
  1572
wenzelm@59926
  1573
  private definition ...
wenzelm@59926
  1574
  private lemma ...
wenzelm@59926
  1575
wenzelm@59990
  1576
  qualified definition ...
wenzelm@59990
  1577
  qualified lemma ...
wenzelm@59990
  1578
wenzelm@59926
  1579
  lemma ...
wenzelm@59926
  1580
  theorem ...
wenzelm@59926
  1581
wenzelm@59926
  1582
  end
wenzelm@59926
  1583
wenzelm@59901
  1584
* Command 'experiment' opens an anonymous locale context with private
wenzelm@59901
  1585
naming policy.
wenzelm@59901
  1586
wenzelm@59951
  1587
* Command 'notepad' requires proper nesting of begin/end and its proof
wenzelm@59951
  1588
structure in the body: 'oops' is no longer supported here. Minor
wenzelm@59951
  1589
INCOMPATIBILITY, use 'sorry' instead.
wenzelm@59951
  1590
wenzelm@59951
  1591
* Command 'named_theorems' declares a dynamic fact within the context,
wenzelm@59951
  1592
together with an attribute to maintain the content incrementally. This
wenzelm@59951
  1593
supersedes functor Named_Thms in Isabelle/ML, but with a subtle change
wenzelm@59951
  1594
of semantics due to external visual order vs. internal reverse order.
wenzelm@59951
  1595
wenzelm@59951
  1596
* 'find_theorems': search patterns which are abstractions are
wenzelm@59951
  1597
schematically expanded before search. Search results match the naive
wenzelm@59951
  1598
expectation more closely, particularly wrt. abbreviations.
wenzelm@59951
  1599
INCOMPATIBILITY.
wenzelm@59648
  1600
wenzelm@59569
  1601
* Commands 'method_setup' and 'attribute_setup' now work within a local
wenzelm@59569
  1602
theory context.
wenzelm@57941
  1603
wenzelm@58928
  1604
* Outer syntax commands are managed authentically within the theory
wenzelm@59569
  1605
context, without implicit global state. Potential for accidental
wenzelm@58928
  1606
INCOMPATIBILITY, make sure that required theories are really imported.
wenzelm@58928
  1607
wenzelm@60116
  1608
* Historical command-line terminator ";" is no longer accepted (and
wenzelm@60116
  1609
already used differently in Isar). Minor INCOMPATIBILITY, use "isabelle
wenzelm@60116
  1610
update_semicolons" to remove obsolete semicolons from old theory
wenzelm@60116
  1611
sources.
wenzelm@60116
  1612
wenzelm@59951
  1613
* Structural composition of proof methods (meth1; meth2) in Isar
wenzelm@59951
  1614
corresponds to (tac1 THEN_ALL_NEW tac2) in ML.
haftmann@59105
  1615
wenzelm@60119
  1616
* The Eisbach proof method language allows to define new proof methods
wenzelm@60119
  1617
by combining existing ones with their usual syntax. The "match" proof
wenzelm@60119
  1618
method provides basic fact/term matching in addition to
wenzelm@60119
  1619
premise/conclusion matching through Subgoal.focus, and binds fact names
wenzelm@60288
  1620
from matches as well as term patterns within matches. The Isabelle
wenzelm@60288
  1621
documentation provides an entry "eisbach" for the Eisbach User Manual.
wenzelm@60288
  1622
Sources and various examples are in ~~/src/HOL/Eisbach/.
wenzelm@60119
  1623
wenzelm@57941
  1624
wenzelm@58524
  1625
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@58524
  1626
wenzelm@59569
  1627
* Improved folding mode "isabelle" based on Isar syntax. Alternatively,
wenzelm@59569
  1628
the "sidekick" mode may be used for document structure.
wenzelm@59569
  1629
wenzelm@59569
  1630
* Extended bracket matching based on Isar language structure. System
wenzelm@59569
  1631
option jedit_structure_limit determines maximum number of lines to scan
wenzelm@59569
  1632
in the buffer.
wenzelm@58758
  1633
wenzelm@58540
  1634
* Support for BibTeX files: context menu, context-sensitive token
wenzelm@58540
  1635
marker, SideKick parser.
wenzelm@58524
  1636
wenzelm@58551
  1637
* Document antiquotation @{cite} provides formal markup, which is
wenzelm@60265
  1638
interpreted semi-formally based on .bib files that happen to be open in
wenzelm@60265
  1639
the editor (hyperlinks, completion etc.).
wenzelm@58551
  1640
wenzelm@58785
  1641
* Less waste of vertical space via negative line spacing (see Global
wenzelm@58785
  1642
Options / Text Area).
wenzelm@58785
  1643
wenzelm@60091
  1644
* Improved graphview panel with optional output of PNG or PDF, for
wenzelm@60273
  1645
display of 'thy_deps', 'class_deps' etc.
wenzelm@60010
  1646
wenzelm@60116
  1647
* The commands 'thy_deps' and 'class_deps' allow optional bounds to
wenzelm@60116
  1648
restrict the visualized hierarchy.
wenzelm@60095
  1649
wenzelm@60072
  1650
* Improved scheduling for asynchronous print commands (e.g. provers
wenzelm@60072
  1651
managed by the Sledgehammer panel) wrt. ongoing document processing.
wenzelm@60072
  1652
wenzelm@58524
  1653
wenzelm@59951
  1654
*** Document preparation ***
wenzelm@59951
  1655
wenzelm@59951
  1656
* Document markup commands 'chapter', 'section', 'subsection',
wenzelm@59951
  1657
'subsubsection', 'text', 'txt', 'text_raw' work uniformly in any
wenzelm@59951
  1658
context, even before the initial 'theory' command. Obsolete proof
wenzelm@59951
  1659
commands 'sect', 'subsect', 'subsubsect', 'txt_raw' have been
wenzelm@59951
  1660
discontinued, use 'section', 'subsection', 'subsubsection', 'text_raw'
wenzelm@59951
  1661
instead. The old 'header' command is still retained for some time, but
wenzelm@59951
  1662
should be replaced by 'chapter', 'section' etc. (using "isabelle
wenzelm@59951
  1663
update_header"). Minor INCOMPATIBILITY.
wenzelm@59951
  1664
wenzelm@60010
  1665
* Official support for "tt" style variants, via \isatt{...} or
wenzelm@60010
  1666
\begin{isabellett}...\end{isabellett}. The somewhat fragile \verb or
wenzelm@60010
  1667
verbatim environment of LaTeX is no longer used. This allows @{ML} etc.
wenzelm@60010
  1668
as argument to other macros (such as footnotes).
wenzelm@60010
  1669
wenzelm@60010
  1670
* Document antiquotation @{verbatim} prints ASCII text literally in "tt"
wenzelm@60010
  1671
style.
wenzelm@60010
  1672
wenzelm@60010
  1673
* Discontinued obsolete option "document_graph": session_graph.pdf is
wenzelm@60010
  1674
produced unconditionally for HTML browser_info and PDF-LaTeX document.
wenzelm@60010
  1675
wenzelm@59951
  1676
* Diagnostic commands and document markup commands within a proof do not
wenzelm@59951
  1677
affect the command tag for output. Thus commands like 'thm' are subject
wenzelm@59951
  1678
to proof document structure, and no longer "stick out" accidentally.
wenzelm@59951
  1679
Commands 'text' and 'txt' merely differ in the LaTeX style, not their
wenzelm@59951
  1680
tags. Potential INCOMPATIBILITY in exotic situations.
wenzelm@59951
  1681
wenzelm@59951
  1682
* System option "pretty_margin" is superseded by "thy_output_margin",
wenzelm@59951
  1683
which is also accessible via document antiquotation option "margin".
wenzelm@59951
  1684
Only the margin for document output may be changed, but not the global
wenzelm@59951
  1685
pretty printing: that is 76 for plain console output, and adapted
wenzelm@59951
  1686
dynamically in GUI front-ends. Implementations of document
wenzelm@59951
  1687
antiquotations need to observe the margin explicitly according to
wenzelm@59951
  1688
Thy_Output.string_of_margin. Minor INCOMPATIBILITY.
wenzelm@59951
  1689
wenzelm@60299
  1690
* Specification of 'document_files' in the session ROOT file is
wenzelm@60299
  1691
mandatory for document preparation. The legacy mode with implicit
wenzelm@60299
  1692
copying of the document/ directory is no longer supported. Minor
wenzelm@60299
  1693
INCOMPATIBILITY.
wenzelm@60299
  1694
wenzelm@59951
  1695
haftmann@58202
  1696
*** Pure ***
haftmann@58202
  1697
wenzelm@59835
  1698
* Proof methods with explicit instantiation ("rule_tac", "subgoal_tac"
wenzelm@59835
  1699
etc.) allow an optional context of local variables ('for' declaration):
wenzelm@59835
  1700
these variables become schematic in the instantiated theorem; this
wenzelm@59835
  1701
behaviour is analogous to 'for' in attributes "where" and "of".
wenzelm@59835
  1702
Configuration option rule_insts_schematic (default false) controls use
wenzelm@59835
  1703
of schematic variables outside the context. Minor INCOMPATIBILITY,
wenzelm@59835
  1704
declare rule_insts_schematic = true temporarily and update to use local
wenzelm@59835
  1705
variable declarations or dummy patterns instead.
wenzelm@59835
  1706
wenzelm@60010
  1707
* Explicit instantiation via attributes "where", "of", and proof methods
wenzelm@60010
  1708
"rule_tac" with derivatives like "subgoal_tac" etc. admit dummy patterns
wenzelm@60010
  1709
("_") that stand for anonymous local variables.
wenzelm@60010
  1710
wenzelm@59951
  1711
* Generated schematic variables in standard format of exported facts are
wenzelm@59951
  1712
incremented to avoid material in the proof context. Rare
wenzelm@59951
  1713
INCOMPATIBILITY, explicit instantiation sometimes needs to refer to
wenzelm@59951
  1714
different index.
wenzelm@59951
  1715
wenzelm@60011
  1716
* Lexical separation of signed and unsigned numerals: categories "num"
wenzelm@60011
  1717
and "float" are unsigned. INCOMPATIBILITY: subtle change in precedence
wenzelm@60011
  1718
of numeral signs, particularly in expressions involving infix syntax
wenzelm@60011
  1719
like "(- 1) ^ n".
haftmann@58410
  1720
wenzelm@58421
  1721
* Old inner token category "xnum" has been discontinued.  Potential
wenzelm@58421
  1722
INCOMPATIBILITY for exotic syntax: may use mixfix grammar with "num"
wenzelm@58421
  1723
token category instead.
wenzelm@58421
  1724
haftmann@58202
  1725
blanchet@57737
  1726
*** HOL ***
blanchet@57737
  1727
blanchet@57983
  1728
* New (co)datatype package:
blanchet@58374
  1729
  - The 'datatype_new' command has been renamed 'datatype'. The old
blanchet@58374
  1730
    command of that name is now called 'old_datatype' and is provided
blanchet@58374
  1731
    by "~~/src/HOL/Library/Old_Datatype.thy". See
blanchet@58374
  1732
    'isabelle doc datatypes' for information on porting.
blanchet@58374
  1733
    INCOMPATIBILITY.
blanchet@57983
  1734
  - Renamed theorems:
blanchet@57983
  1735
      disc_corec ~> corec_disc
blanchet@57983
  1736
      disc_corec_iff ~> corec_disc_iff
blanchet@57983
  1737
      disc_exclude ~> distinct_disc
blanchet@57983
  1738
      disc_exhaust ~> exhaust_disc
blanchet@57983
  1739
      disc_map_iff ~> map_disc_iff
blanchet@57983
  1740
      sel_corec ~> corec_sel
blanchet@57983
  1741
      sel_exhaust ~> exhaust_sel
blanchet@57983
  1742
      sel_map ~> map_sel
blanchet@57983
  1743
      sel_set ~> set_sel
blanchet@57983
  1744
      sel_split ~> split_sel
blanchet@57983
  1745
      sel_split_asm ~> split_sel_asm
blanchet@57983
  1746
      strong_coinduct ~> coinduct_strong
blanchet@57983
  1747
      weak_case_cong ~> case_cong_weak
blanchet@57983
  1748
    INCOMPATIBILITY.
blanchet@58192
  1749
  - The "no_code" option to "free_constructors", "datatype_new", and
blanchet@58192
  1750
    "codatatype" has been renamed "plugins del: code".
blanchet@58192
  1751
    INCOMPATIBILITY.
blanchet@58044
  1752
  - The rules "set_empty" have been removed. They are easy
blanchet@58044
  1753
    consequences of other set rules "by auto".
blanchet@58044
  1754
    INCOMPATIBILITY.
blanchet@58044
  1755
  - The rule "set_cases" is now registered with the "[cases set]"
blanchet@57990
  1756
    attribute. This can influence the behavior of the "cases" proof
blanchet@57990
  1757
    method when more than one case rule is applicable (e.g., an
blanchet@57990
  1758
    assumption is of the form "w : set ws" and the method "cases w"
blanchet@57990
  1759
    is invoked). The solution is to specify the case rule explicitly
blanchet@57990
  1760
    (e.g. "cases w rule: widget.exhaust").
blanchet@57990
  1761
    INCOMPATIBILITY.
blanchet@59675
  1762
  - Renamed theories:
blanchet@59675
  1763
      BNF_Comp ~> BNF_Composition
blanchet@59675
  1764
      BNF_FP_Base ~> BNF_Fixpoint_Base
blanchet@59675
  1765
      BNF_GFP ~> BNF_Greatest_Fixpoint
blanchet@59675
  1766
      BNF_LFP ~> BNF_Least_Fixpoint
blanchet@59675
  1767
      BNF_Constructions_on_Wellorders ~> BNF_Wellorder_Constructions
blanchet@59675
  1768
      Cardinals/Constructions_on_Wellorders ~> Cardinals/Wellorder_Constructions
blanchet@59675
  1769
    INCOMPATIBILITY.
wenzelm@60115
  1770
  - Lifting and Transfer setup for basic HOL types sum and prod (also
wenzelm@60115
  1771
    option) is now performed by the BNF package. Theories Lifting_Sum,
wenzelm@60115
  1772
    Lifting_Product and Lifting_Option from Main became obsolete and
wenzelm@60115
  1773
    were removed. Changed definitions of the relators rel_prod and
wenzelm@60115
  1774
    rel_sum (using inductive).
traytel@60112
  1775
    INCOMPATIBILITY: use rel_prod.simps and rel_sum.simps instead
wenzelm@60115
  1776
    of rel_prod_def and rel_sum_def.
wenzelm@60115
  1777
    Minor INCOMPATIBILITY: (rarely used by name) transfer theorem names
wenzelm@60115
  1778
    changed (e.g. map_prod_transfer ~> prod.map_transfer).
wenzelm@60261
  1779
  - Parametricity theorems for map functions, relators, set functions,
wenzelm@60261
  1780
    constructors, case combinators, discriminators, selectors and
wenzelm@60261
  1781
    (co)recursors are automatically proved and registered as transfer
wenzelm@60261
  1782
    rules.
blanchet@57983
  1783
blanchet@57983
  1784
* Old datatype package:
blanchet@58310
  1785
  - The old 'datatype' command has been renamed 'old_datatype', and
blanchet@58374
  1786
    'rep_datatype' has been renamed 'old_rep_datatype'. They are
blanchet@58374
  1787
    provided by "~~/src/HOL/Library/Old_Datatype.thy". See
blanchet@58310
  1788
    'isabelle doc datatypes' for information on porting.
blanchet@58374
  1789
    INCOMPATIBILITY.
blanchet@57983
  1790
  - Renamed theorems:
blanchet@57983
  1791
      weak_case_cong ~> case_cong_weak
blanchet@57983
  1792
    INCOMPATIBILITY.
blanchet@58374
  1793
  - Renamed theory:
blanchet@58374
  1794
      ~~/src/HOL/Datatype.thy ~> ~~/src/HOL/Library/Old_Datatype.thy
blanchet@58374
  1795
    INCOMPATIBILITY.
blanchet@57983
  1796
blanchet@59039
  1797
* Nitpick:
wenzelm@60011
  1798
  - Fixed soundness bug related to the strict and non-strict subset
blanchet@59039
  1799
    operations.
blanchet@59039
  1800
blanchet@57737
  1801
* Sledgehammer:
blanchet@59511
  1802
  - CVC4 is now included with Isabelle instead of CVC3 and run by
blanchet@59511
  1803
    default.
blanchet@59965
  1804
  - Z3 is now always enabled by default, now that it is fully open
blanchet@59965
  1805
    source. The "z3_non_commercial" option is discontinued.
blanchet@57737
  1806
  - Minimization is now always enabled by default.
wenzelm@60011
  1807
    Removed sub-command:
blanchet@57737
  1808
      min
blanchet@59967
  1809
  - Proof reconstruction, both one-liners and Isar, has been
blanchet@59039
  1810
    dramatically improved.
blanchet@59039
  1811
  - Improved support for CVC4 and veriT.
blanchet@57737
  1812
blanchet@58062
  1813
* Old and new SMT modules:
blanchet@58067
  1814
  - The old 'smt' method has been renamed 'old_smt' and moved to
wenzelm@59569
  1815
    'src/HOL/Library/Old_SMT.thy'. It is provided for compatibility,
wenzelm@59569
  1816
    until applications have been ported to use the new 'smt' method. For
wenzelm@59569
  1817
    the method to work, an older version of Z3 (e.g. Z3 3.2 or 4.0) must
wenzelm@59569
  1818
    be installed, and the environment variable "OLD_Z3_SOLVER" must
wenzelm@59569
  1819
    point to it.
blanchet@58062
  1820
    INCOMPATIBILITY.
blanchet@58067
  1821
  - The 'smt2' method has been renamed 'smt'.
blanchet@58060
  1822
    INCOMPATIBILITY.
wenzelm@59569
  1823
  - New option 'smt_reconstruction_step_timeout' to limit the
wenzelm@59569
  1824
    reconstruction time of Z3 proof steps in the new 'smt' method.
boehmes@59216
  1825
  - New option 'smt_statistics' to display statistics of the new 'smt'
boehmes@59216
  1826
    method, especially runtime statistics of Z3 proof reconstruction.
blanchet@58060
  1827
wenzelm@60261
  1828
* Lifting: command 'lift_definition' allows to execute lifted constants
wenzelm@60261
  1829
that have as a return type a datatype containing a subtype. This
wenzelm@60261
  1830
overcomes long-time limitations in the area of code generation and
wenzelm@60261
  1831
lifting, and avoids tedious workarounds.
kuncar@60258
  1832
wenzelm@60010
  1833
* Command and antiquotation "value" provide different evaluation slots
wenzelm@60010
  1834
(again), where the previous strategy (NBE after ML) serves as default.
wenzelm@60010
  1835
Minor INCOMPATIBILITY.
wenzelm@60010
  1836
wenzelm@60010
  1837
* Add NO_MATCH-simproc, allows to check for syntactic non-equality.
wenzelm@60010
  1838
wenzelm@60010
  1839
* field_simps: Use NO_MATCH-simproc for distribution rules, to avoid
wenzelm@60010
  1840
non-termination in case of distributing a division. With this change
wenzelm@60010
  1841
field_simps is in some cases slightly less powerful, if it fails try to
wenzelm@60010
  1842
add algebra_simps, or use divide_simps. Minor INCOMPATIBILITY.
wenzelm@60010
  1843
wenzelm@60010
  1844
* Separate class no_zero_divisors has been given up in favour of fully
wenzelm@60010
  1845
algebraic semiring_no_zero_divisors. INCOMPATIBILITY.
wenzelm@60010
  1846
wenzelm@60010
  1847
* Class linordered_semidom really requires no zero divisors.
wenzelm@60010
  1848
INCOMPATIBILITY.
wenzelm@60010
  1849
wenzelm@60010
  1850
* Classes division_ring, field and linordered_field always demand
wenzelm@60010
  1851
"inverse 0 = 0". Given up separate classes division_ring_inverse_zero,
wenzelm@60010
  1852
field_inverse_zero and linordered_field_inverse_zero. INCOMPATIBILITY.
wenzelm@60010
  1853
wenzelm@60010
  1854
* Classes cancel_ab_semigroup_add / cancel_monoid_add specify explicit
wenzelm@60010
  1855
additive inverse operation. INCOMPATIBILITY.
wenzelm@60010
  1856
lp15@60020
  1857
* Complex powers and square roots. The functions "ln" and "powr" are now
wenzelm@60025
  1858
overloaded for types real and complex, and 0 powr y = 0 by definition.
wenzelm@60025
  1859
INCOMPATIBILITY: type constraints may be necessary.
lp15@60020
  1860
wenzelm@60010
  1861
* The functions "sin" and "cos" are now defined for any type of sort
wenzelm@60010
  1862
"{real_normed_algebra_1,banach}" type, so in particular on "real" and
wenzelm@60010
  1863
"complex" uniformly. Minor INCOMPATIBILITY: type constraints may be
wenzelm@60010
  1864
needed.
wenzelm@60010
  1865
wenzelm@60010
  1866
* New library of properties of the complex transcendental functions sin,
wenzelm@60010
  1867
cos, tan, exp, Ln, Arctan, Arcsin, Arccos. Ported from HOL Light.
wenzelm@60010
  1868
wenzelm@60010
  1869
* The factorial function, "fact", now has type "nat => 'a" (of a sort
wenzelm@60010
  1870
that admits numeric types including nat, int, real and complex.
wenzelm@60010
  1871
INCOMPATIBILITY: an expression such as "fact 3 = 6" may require a type
wenzelm@60010
  1872
constraint, and the combination "real (fact k)" is likely to be
wenzelm@60010
  1873
unsatisfactory. If a type conversion is still necessary, then use
wenzelm@60010
  1874
"of_nat (fact k)" or "real_of_nat (fact k)".
wenzelm@60010
  1875
wenzelm@60010
  1876
* Removed functions "natfloor" and "natceiling", use "nat o floor" and
wenzelm@60010
  1877
"nat o ceiling" instead. A few of the lemmas have been retained and
wenzelm@60010
  1878
adapted: in their names "natfloor"/"natceiling" has been replaced by
wenzelm@60010
  1879
"nat_floor"/"nat_ceiling".
wenzelm@60010
  1880
wenzelm@60010
  1881
* Qualified some duplicated fact names required for boostrapping the
wenzelm@60010
  1882
type class hierarchy:
wenzelm@60010
  1883
  ab_add_uminus_conv_diff ~> diff_conv_add_uminus
wenzelm@60010
  1884
  field_inverse_zero ~> inverse_zero
wenzelm@60010
  1885
  field_divide_inverse ~> divide_inverse
wenzelm@60010
  1886
  field_inverse ~> left_inverse
wenzelm@60010
  1887
Minor INCOMPATIBILITY.
wenzelm@60010
  1888
wenzelm@60010
  1889
* Eliminated fact duplicates:
wenzelm@60010
  1890
  mult_less_imp_less_right ~> mult_right_less_imp_less
wenzelm@60010
  1891
  mult_less_imp_less_left ~> mult_left_less_imp_less
wenzelm@60010
  1892
Minor INCOMPATIBILITY.
wenzelm@60010
  1893
wenzelm@60010
  1894
* Fact consolidation: even_less_0_iff is subsumed by
wenzelm@60010
  1895
double_add_less_zero_iff_single_add_less_zero (simp by default anyway).
wenzelm@60010
  1896
wenzelm@60010
  1897
* Generalized and consolidated some theorems concerning divsibility:
wenzelm@60010
  1898
  dvd_reduce ~> dvd_add_triv_right_iff
wenzelm@60010
  1899
  dvd_plus_eq_right ~> dvd_add_right_iff
wenzelm@60010
  1900
  dvd_plus_eq_left ~> dvd_add_left_iff
wenzelm@60010
  1901
Minor INCOMPATIBILITY.
wenzelm@60010
  1902
wenzelm@60010
  1903
* "even" and "odd" are mere abbreviations for "2 dvd _" and "~ 2 dvd _"
wenzelm@60010
  1904
and part of theory Main.
wenzelm@60010
  1905
  even_def ~> even_iff_mod_2_eq_zero
wenzelm@60010
  1906
INCOMPATIBILITY.
wenzelm@60010
  1907
wenzelm@60010
  1908
* Lemma name consolidation: divide_Numeral1 ~> divide_numeral_1. Minor
wenzelm@60010
  1909
INCOMPATIBILITY.
wenzelm@60010
  1910
wenzelm@60010
  1911
* Bootstrap of listsum as special case of abstract product over lists.
wenzelm@60010
  1912
Fact rename:
wenzelm@60010
  1913
    listsum_def ~> listsum.eq_foldr
wenzelm@60010
  1914
INCOMPATIBILITY.
wenzelm@60010
  1915
wenzelm@60010
  1916
* Product over lists via constant "listprod".
wenzelm@60010
  1917
wenzelm@60010
  1918
* Theory List: renamed drop_Suc_conv_tl and nth_drop' to
wenzelm@60010
  1919
Cons_nth_drop_Suc.
nipkow@58247
  1920
Andreas@58626
  1921
* New infrastructure for compiling, running, evaluating and testing
wenzelm@59569
  1922
generated code in target languages in HOL/Library/Code_Test. See
wenzelm@59569
  1923
HOL/Codegenerator_Test/Code_Test* for examples.
wenzelm@58008
  1924
wenzelm@60010
  1925
* Library/Multiset:
blanchet@59813
  1926
  - Introduced "replicate_mset" operation.
blanchet@59813
  1927
  - Introduced alternative characterizations of the multiset ordering in
blanchet@59813
  1928
    "Library/Multiset_Order".
blanchet@59958
  1929
  - Renamed multiset ordering:
blanchet@59958
  1930
      <# ~> #<#
blanchet@59958
  1931
      <=# ~> #<=#
blanchet@59958
  1932
      \<subset># ~> #\<subset>#
blanchet@59958
  1933
      \<subseteq># ~> #\<subseteq>#
blanchet@59958
  1934
    INCOMPATIBILITY.
blanchet@59986
  1935
  - Introduced abbreviations for ill-named multiset operations:
blanchet@59986
  1936
      <#, \<subset># abbreviate < (strict subset)
blanchet@59986
  1937
      <=#, \<le>#, \<subseteq># abbreviate <= (subset or equal)
blanchet@59986
  1938
    INCOMPATIBILITY.
blanchet@59813
  1939
  - Renamed
blanchet@59813
  1940
      in_multiset_of ~> in_multiset_in_set
nipkow@59998
  1941
      Multiset.fold ~> fold_mset
nipkow@59998
  1942
      Multiset.filter ~> filter_mset
blanchet@59813
  1943
    INCOMPATIBILITY.
nipkow@59949
  1944
  - Removed mcard, is equal to size.
blanchet@59813
  1945
  - Added attributes:
blanchet@59813
  1946
      image_mset.id [simp]
blanchet@59813
  1947
      image_mset_id [simp]
blanchet@59813
  1948
      elem_multiset_of_set [simp, intro]
blanchet@59813
  1949
      comp_fun_commute_plus_mset [simp]
blanchet@59813
  1950
      comp_fun_commute.fold_mset_insert [OF comp_fun_commute_plus_mset, simp]
blanchet@59813
  1951
      in_mset_fold_plus_iff [iff]
blanchet@59813
  1952
      set_of_Union_mset [simp]
blanchet@59813
  1953
      in_Union_mset_iff [iff]
blanchet@59813
  1954
    INCOMPATIBILITY.
blanchet@59813
  1955
wenzelm@60010
  1956
* Library/Sum_of_Squares: simplified and improved "sos" method. Always
wenzelm@60010
  1957
use local CSDP executable, which is much faster than the NEOS server.
wenzelm@60010
  1958
The "sos_cert" functionality is invoked as "sos" with additional
wenzelm@60010
  1959
argument. Minor INCOMPATIBILITY.
wenzelm@60010
  1960
wenzelm@60010
  1961
* HOL-Decision_Procs: New counterexample generator quickcheck
wenzelm@60010
  1962
[approximation] for inequalities of transcendental functions. Uses
wenzelm@60010
  1963
hardware floating point arithmetic to randomly discover potential
wenzelm@60011
  1964
counterexamples. Counterexamples are certified with the "approximation"
wenzelm@60010
  1965
method. See HOL/Decision_Procs/ex/Approximation_Quickcheck_Ex.thy for
wenzelm@60010
  1966
examples.
immler@58990
  1967
hoelzl@59354
  1968
* HOL-Probability: Reworked measurability prover
wenzelm@60011
  1969
  - applies destructor rules repeatedly
hoelzl@59354
  1970
  - removed application splitting (replaced by destructor rule)
wenzelm@59569
  1971
  - added congruence rules to rewrite measure spaces under the sets
wenzelm@59569
  1972
    projection
wenzelm@59569
  1973
wenzelm@60010
  1974
* New proof method "rewrite" (in theory ~~/src/HOL/Library/Rewrite) for
wenzelm@60010
  1975
single-step rewriting with subterm selection based on patterns.
wenzelm@60010
  1976
wenzelm@58630
  1977
blanchet@58066
  1978
*** ML ***
blanchet@58066
  1979
wenzelm@60010
  1980
* Subtle change of name space policy: undeclared entries are now
wenzelm@60010
  1981
considered inaccessible, instead of accessible via the fully-qualified
wenzelm@60010
  1982
internal name. This mainly affects Name_Space.intern (and derivatives),
wenzelm@60010
  1983
which may produce an unexpected Long_Name.hidden prefix. Note that
wenzelm@60011
  1984
contemporary applications use the strict Name_Space.check (and
wenzelm@60010
  1985
derivatives) instead, which is not affected by the change. Potential
wenzelm@60010
  1986
INCOMPATIBILITY in rare applications of Name_Space.intern.
wenzelm@59951
  1987
wenzelm@60096
  1988
* Subtle change of error semantics of Toplevel.proof_of: regular user
wenzelm@60096
  1989
ERROR instead of internal Toplevel.UNDEF.
wenzelm@60096
  1990
wenzelm@59951
  1991
* Basic combinators map, fold, fold_map, split_list, apply are available
wenzelm@59951
  1992
as parameterized antiquotations, e.g. @{map 4} for lists of quadruples.
wenzelm@59951
  1993
wenzelm@59951
  1994
* Renamed "pairself" to "apply2", in accordance to @{apply 2}.
wenzelm@59951
  1995
INCOMPATIBILITY.
wenzelm@59951
  1996
wenzelm@59951
  1997
* Former combinators NAMED_CRITICAL and CRITICAL for central critical
wenzelm@59951
  1998
sections have been discontinued, in favour of the more elementary
wenzelm@59951
  1999
Multithreading.synchronized and its high-level derivative
wenzelm@59951
  2000
Synchronized.var (which is usually sufficient in applications). Subtle
wenzelm@59951
  2001
INCOMPATIBILITY: synchronized access needs to be atomic and cannot be
wenzelm@59951
  2002
nested.
wenzelm@59951
  2003
wenzelm@60010
  2004
* Synchronized.value (ML) is actually synchronized (as in Scala): subtle
wenzelm@60010
  2005
change of semantics with minimal potential for INCOMPATIBILITY.
wenzelm@59899
  2006
wenzelm@59621
  2007
* The main operations to certify logical entities are Thm.ctyp_of and
wenzelm@59621
  2008
Thm.cterm_of with a local context; old-style global theory variants are
wenzelm@59621
  2009
available as Thm.global_ctyp_of and Thm.global_cterm_of.
wenzelm@59621
  2010
INCOMPATIBILITY.
wenzelm@59621
  2011
wenzelm@59582
  2012
* Elementary operations in module Thm are no longer pervasive.
wenzelm@59582
  2013
INCOMPATIBILITY, need to use qualified Thm.prop_of, Thm.cterm_of,
wenzelm@59582
  2014
Thm.term_of etc.
wenzelm@59582
  2015
wenzelm@58963
  2016
* Proper context for various elementary tactics: assume_tac,
wenzelm@59498
  2017
resolve_tac, eresolve_tac, dresolve_tac, forward_tac, match_tac,
wenzelm@59498
  2018
compose_tac, Splitter.split_tac etc. INCOMPATIBILITY.
wenzelm@58956
  2019
blanchet@58066
  2020
* Tactical PARALLEL_ALLGOALS is the most common way to refer to
blanchet@58066
  2021
PARALLEL_GOALS.
blanchet@58066
  2022
wenzelm@59564
  2023
* Goal.prove_multi is superseded by the fully general Goal.prove_common,
wenzelm@59564
  2024
which also allows to specify a fork priority.
wenzelm@59564
  2025
wenzelm@59936
  2026
* Antiquotation @{command_spec "COMMAND"} is superseded by
wenzelm@59936
  2027
@{command_keyword COMMAND} (usually without quotes and with PIDE
wenzelm@59936
  2028
markup). Minor INCOMPATIBILITY.
wenzelm@59936
  2029
wenzelm@60010
  2030
* Cartouches within ML sources are turned into values of type
wenzelm@60010
  2031
Input.source (with formal position information).
wenzelm@60010
  2032
blanchet@58066
  2033
wenzelm@58610
  2034
*** System ***
wenzelm@58610
  2035
wenzelm@59951
  2036
* The Isabelle tool "update_cartouches" changes theory files to use
wenzelm@59951
  2037
cartouches instead of old-style {* verbatim *} or `alt_string` tokens.
wenzelm@59951
  2038
wenzelm@60108
  2039
* The Isabelle tool "build" provides new options -X, -k, -x.
wenzelm@59951
  2040
wenzelm@59951
  2041
* Discontinued old-fashioned "codegen" tool. Code generation can always
wenzelm@59951
  2042
be externally triggered using an appropriate ROOT file plus a
wenzelm@59951
  2043
corresponding theory. Parametrization is possible using environment
wenzelm@59951
  2044
variables, or ML snippets in the most extreme cases. Minor
wenzelm@59951
  2045
INCOMPATIBILITY.
wenzelm@58842
  2046
wenzelm@59200
  2047
* JVM system property "isabelle.threads" determines size of Scala thread
wenzelm@59200
  2048
pool, like Isabelle system option "threads" for ML.
wenzelm@59200
  2049
wenzelm@59201
  2050
* JVM system property "isabelle.laf" determines the default Swing
wenzelm@59201
  2051
look-and-feel, via internal class name or symbolic name as in the jEdit
wenzelm@59201
  2052
menu Global Options / Appearance.
wenzelm@59201
  2053
wenzelm@59951
  2054
* Support for Proof General and Isar TTY loop has been discontinued.
wenzelm@60010
  2055
Minor INCOMPATIBILITY, use standard PIDE infrastructure instead.
wenzelm@59891
  2056
wenzelm@58610
  2057
wenzelm@57695
  2058
wenzelm@57452
  2059
New in Isabelle2014 (August 2014)
wenzelm@57452
  2060
---------------------------------
wenzelm@54055
  2061
wenzelm@54702
  2062
*** General ***
wenzelm@54702
  2063
wenzelm@57452
  2064
* Support for official Standard ML within the Isabelle context.
wenzelm@57452
  2065
Command 'SML_file' reads and evaluates the given Standard ML file.
wenzelm@57452
  2066
Toplevel bindings are stored within the theory context; the initial
wenzelm@57452
  2067
environment is restricted to the Standard ML implementation of
wenzelm@57452
  2068
Poly/ML, without the add-ons of Isabelle/ML.  Commands 'SML_import'
wenzelm@57452
  2069
and 'SML_export' allow to exchange toplevel bindings between the two
wenzelm@57452
  2070
separate environments.  See also ~~/src/Tools/SML/Examples.thy for
wenzelm@57452
  2071
some examples.
wenzelm@56499
  2072
wenzelm@57504
  2073
* Standard tactics and proof methods such as "clarsimp", "auto" and
wenzelm@57504
  2074
"safe" now preserve equality hypotheses "x = expr" where x is a free
wenzelm@57504
  2075
variable.  Locale assumptions and chained facts containing "x"
wenzelm@57504
  2076
continue to be useful.  The new method "hypsubst_thin" and the
wenzelm@57504
  2077
configuration option "hypsubst_thin" (within the attribute name space)
wenzelm@57504
  2078
restore the previous behavior.  INCOMPATIBILITY, especially where
wenzelm@57504
  2079
induction is done after these methods or when the names of free and
wenzelm@57504
  2080
bound variables clash.  As first approximation, old proofs may be
wenzelm@57504
  2081
repaired by "using [[hypsubst_thin = true]]" in the critical spot.
wenzelm@57504
  2082
wenzelm@56232
  2083
* More static checking of proof methods, which allows the system to
wenzelm@56232
  2084
form a closure over the concrete syntax.  Method arguments should be
wenzelm@56232
  2085
processed in the original proof context as far as possible, before
wenzelm@56232
  2086
operating on the goal state.  In any case, the standard discipline for
wenzelm@56232
  2087
subgoal-addressing needs to be observed: no subgoals or a subgoal
wenzelm@56232
  2088
number that is out of range produces an empty result sequence, not an
wenzelm@56232
  2089
exception.  Potential INCOMPATIBILITY for non-conformant tactical
wenzelm@56232
  2090
proof tools.
wenzelm@56232
  2091
wenzelm@57452
  2092
* Lexical syntax (inner and outer) supports text cartouches with
wenzelm@57452
  2093
arbitrary nesting, and without escapes of quotes etc.  The Prover IDE
wenzelm@57452
  2094
supports input via ` (backquote).
wenzelm@57452
  2095
wenzelm@57452
  2096
* The outer syntax categories "text" (for formal comments and document
wenzelm@57452
  2097
markup commands) and "altstring" (for literal fact references) allow
wenzelm@57452
  2098
cartouches as well, in addition to the traditional mix of quotations.
wenzelm@57452
  2099
wenzelm@57452
  2100
* Syntax of document antiquotation @{rail} now uses \<newline> instead
wenzelm@57452
  2101
of "\\", to avoid the optical illusion of escaped backslash within
wenzelm@57491
  2102
string token.  General renovation of its syntax using text cartouches.
wenzelm@57452
  2103
Minor INCOMPATIBILITY.
wenzelm@57452
  2104
wenzelm@57452
  2105
* Discontinued legacy_isub_isup, which was a temporary workaround for
wenzelm@57452
  2106
Isabelle/ML in Isabelle2013-1.  The prover process no longer accepts
wenzelm@57452
  2107
old identifier syntax with \<^isub> or \<^isup>.  Potential
wenzelm@57452
  2108
INCOMPATIBILITY.
wenzelm@57452
  2109
wenzelm@57452
  2110
* Document antiquotation @{url} produces markup for the given URL,
wenzelm@57452
  2111
which results in an active hyperlink within the text.
wenzelm@57452
  2112
wenzelm@57452
  2113
* Document antiquotation @{file_unchecked} is like @{file}, but does
wenzelm@57452
  2114
not check existence within the file-system.
wenzelm@57452
  2115
wenzelm@57452
  2116
* Updated and extended manuals: codegen, datatypes, implementation,
wenzelm@57452
  2117
isar-ref, jedit, system.
wenzelm@57423
  2118
wenzelm@54702
  2119
wenzelm@54533
  2120
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@54533
  2121
wenzelm@57650
  2122
* Improved Document panel: simplified interaction where every single
wenzelm@57452
  2123
mouse click (re)opens document via desktop environment or as jEdit
wenzelm@57452
  2124
buffer.
wenzelm@57452
  2125
wenzelm@57452
  2126
* Support for Navigator plugin (with toolbar buttons), with connection
wenzelm@57452
  2127
to PIDE hyperlinks.
wenzelm@57452
  2128
wenzelm@57452
  2129
* Auxiliary files ('ML_file' etc.) are managed by the Prover IDE.
wenzelm@57452
  2130
Open text buffers take precedence over copies within the file-system.
wenzelm@57452
  2131
wenzelm@57452
  2132
* Improved support for Isabelle/ML, with jEdit mode "isabelle-ml" for
wenzelm@57452
  2133
auxiliary ML files.
wenzelm@57423
  2134
wenzelm@57423
  2135
* Improved syntactic and semantic completion mechanism, with simple
wenzelm@57423
  2136
templates, completion language context, name-space completion,
wenzelm@57423
  2137
file-name completion, spell-checker completion.
wenzelm@57423
  2138
wenzelm@57423
  2139
* Refined GUI popup for completion: more robust key/mouse event
wenzelm@57423
  2140
handling and propagation to enclosing text area -- avoid loosing
wenzelm@57423
  2141
keystrokes with slow / remote graphics displays.
wenzelm@57423
  2142
wenzelm@57833
  2143
* Completion popup supports both ENTER and TAB (default) to select an
wenzelm@57833
  2144
item, depending on Isabelle options.
wenzelm@57833
  2145
wenzelm@57423
  2146
* Refined insertion of completion items wrt. jEdit text: multiple
wenzelm@57423
  2147
selections, rectangular selections, rectangular selection as "tall
wenzelm@57423
  2148
caret".
wenzelm@56342
  2149
wenzelm@56580
  2150
* Integrated spell-checker for document text, comments etc. with
wenzelm@57423
  2151
completion popup and context-menu.
wenzelm@56554
  2152
wenzelm@56879
  2153
* More general "Query" panel supersedes "Find" panel, with GUI access
wenzelm@56879
  2154
to commands 'find_theorems' and 'find_consts', as well as print
wenzelm@56879
  2155
operations for the context.  Minor incompatibility in keyboard
wenzelm@56879
  2156
shortcuts etc.: replace action isabelle-find by isabelle-query.
wenzelm@56761
  2157
wenzelm@56901
  2158
* Search field for all output panels ("Output", "Query", "Info" etc.)
wenzelm@56901
  2159
to highlight text via regular expression.
wenzelm@56901
  2160
wenzelm@54881
  2161
* Option "jedit_print_mode" (see also "Plugin Options / Isabelle /
wenzelm@54881
  2162
General") allows to specify additional print modes for the prover
wenzelm@54881
  2163
process, without requiring old-fashioned command-line invocation of
wenzelm@54881
  2164
"isabelle jedit -m MODE".
wenzelm@54881
  2165
wenzelm@56505
  2166
* More support for remote files (e.g. http) using standard Java
wenzelm@56505
  2167
networking operations instead of jEdit virtual file-systems.
wenzelm@56505
  2168
wenzelm@57822
  2169
* Empty editors buffers that are no longer required (e.g.\ via theory
wenzelm@57822
  2170
imports) are automatically removed from the document model.
wenzelm@57822
  2171
wenzelm@57869
  2172
* Improved monitor panel.
wenzelm@57869
  2173
wenzelm@56838
  2174
* Improved Console/Scala plugin: more uniform scala.Console output,
wenzelm@56838
  2175
more robust treatment of threads and interrupts.
wenzelm@56838
  2176
wenzelm@56939
  2177
* Improved management of dockable windows: clarified keyboard focus
wenzelm@56939
  2178
and window placement wrt. main editor view; optional menu item to
wenzelm@56939
  2179
"Detach" a copy where this makes sense.
wenzelm@56939
  2180
wenzelm@57452
  2181
* New Simplifier Trace panel provides an interactive view of the
wenzelm@57594
  2182
simplification process, enabled by the "simp_trace_new" attribute
wenzelm@57452
  2183
within the context.
wenzelm@57452
  2184
wenzelm@57452
  2185
wenzelm@55001
  2186
*** Pure ***
wenzelm@55001
  2187
wenzelm@57504
  2188
* Low-level type-class commands 'classes', 'classrel', 'arities' have
wenzelm@57504
  2189
been discontinued to avoid the danger of non-trivial axiomatization
wenzelm@57504
  2190
that is not immediately visible.  INCOMPATIBILITY, use regular
wenzelm@57504
  2191
'instance' command with proof.  The required OFCLASS(...) theorem
wenzelm@57504
  2192
might be postulated via 'axiomatization' beforehand, or the proof
wenzelm@57504
  2193
finished trivially if the underlying class definition is made vacuous
wenzelm@57504
  2194
(without any assumptions).  See also Isabelle/ML operations
wenzelm@57504
  2195
Axclass.class_axiomatization, Axclass.classrel_axiomatization,
wenzelm@57504
  2196
Axclass.arity_axiomatization.
wenzelm@57504
  2197
wenzelm@56245
  2198
* Basic constants of Pure use more conventional names and are always
wenzelm@56245
  2199
qualified.  Rare INCOMPATIBILITY, but with potentially serious
wenzelm@56245
  2200
consequences, notably for tools in Isabelle/ML.  The following
wenzelm@56245
  2201
renaming needs to be applied:
wenzelm@56245
  2202
wenzelm@56245
  2203
  ==             ~>  Pure.eq
wenzelm@56245
  2204
  ==>            ~>  Pure.imp
wenzelm@56245
  2205
  all            ~>  Pure.all
wenzelm@56245
  2206
  TYPE           ~>  Pure.type
wenzelm@56245
  2207
  dummy_pattern  ~>  Pure.dummy_pattern
wenzelm@56245
  2208
wenzelm@56245
  2209
Systematic porting works by using the following theory setup on a
wenzelm@56245
  2210
*previous* Isabelle version to introduce the new name accesses for the
wenzelm@56245
  2211
old constants:
wenzelm@56245
  2212
wenzelm@56245
  2213
setup {*
wenzelm@56245
  2214
  fn thy => thy
wenzelm@56245
  2215
    |> Sign.root_path
wenzelm@56245
  2216
    |> Sign.const_alias (Binding.qualify true "Pure" @{binding eq}) "=="
wenzelm@56245
  2217
    |> Sign.const_alias (Binding.qualify true "Pure" @{binding imp}) "==>"
wenzelm@56245
  2218
    |> Sign.const_alias (Binding.qualify true "Pure" @{binding all}) "all"
wenzelm@56245
  2219
    |> Sign.restore_naming thy
wenzelm@56245
  2220
*}
wenzelm@56245
  2221
wenzelm@56245
  2222
Thus ML antiquotations like @{const_name Pure.eq} may be used already.
wenzelm@56245
  2223
Later the application is moved to the current Isabelle version, and
wenzelm@56245
  2224
the auxiliary aliases are deleted.
wenzelm@56245
  2225
wenzelm@55143
  2226
* Attributes "where" and "of" allow an optional context of local
wenzelm@55143
  2227
variables ('for' declaration): these variables become schematic in the
wenzelm@55143
  2228
instantiated theorem.
wenzelm@55143
  2229
wenzelm@55152
  2230
* Obsolete attribute "standard" has been discontinued (legacy since
wenzelm@55152
  2231
Isabelle2012).  Potential INCOMPATIBILITY, use explicit 'for' context
wenzelm@55152
  2232
where instantiations with schematic variables are intended (for
wenzelm@55152
  2233
declaration commands like 'lemmas' or attributes like "of").  The
wenzelm@55152
  2234
following temporary definition may help to port old applications:
wenzelm@55152
  2235
wenzelm@55152
  2236
  attribute_setup standard =
wenzelm@55152
  2237
    "Scan.succeed (Thm.rule_attribute (K Drule.export_without_context))"
wenzelm@55152
  2238
wenzelm@55001
  2239
* More thorough check of proof context for goal statements and
wenzelm@55006
  2240
attributed fact expressions (concerning background theory, declared
wenzelm@55006
  2241
hyps).  Potential INCOMPATIBILITY, tools need to observe standard
wenzelm@55006
  2242
context discipline.  See also Assumption.add_assumes and the more
wenzelm@55006
  2243
primitive Thm.assume_hyps.
wenzelm@55001
  2244
wenzelm@55108
  2245
* Inner syntax token language allows regular quoted strings "..."
wenzelm@55108
  2246
(only makes sense in practice, if outer syntax is delimited
wenzelm@57452
  2247
differently, e.g. via cartouches).
wenzelm@57452
  2248
wenzelm@57504
  2249
* Command 'print_term_bindings' supersedes 'print_binds' for clarity,
wenzelm@57504
  2250
but the latter is retained some time as Proof General legacy.
wenzelm@57504
  2251
wenzelm@57452
  2252
* Code generator preprocessor: explicit control of simp tracing on a
wenzelm@57452
  2253
per-constant basis.  See attribute "code_preproc".
haftmann@57430
  2254
wenzelm@55001
  2255
haftmann@54227
  2256
*** HOL ***
haftmann@54227
  2257
wenzelm@57504
  2258
* Code generator: enforce case of identifiers only for strict target
wenzelm@57504
  2259
language requirements.  INCOMPATIBILITY.
wenzelm@57504
  2260
wenzelm@57504
  2261
* Code generator: explicit proof contexts in many ML interfaces.
wenzelm@57504
  2262
INCOMPATIBILITY.
wenzelm@57504
  2263
wenzelm@57504
  2264
* Code generator: minimize exported identifiers by default.  Minor
wenzelm@57504
  2265
INCOMPATIBILITY.
wenzelm@57504
  2266
wenzelm@57504
  2267
* Code generation for SML and OCaml: dropped arcane "no_signatures"
wenzelm@57504
  2268
option.  Minor INCOMPATIBILITY.
wenzelm@57504
  2269
wenzelm@57504
  2270
* "declare [[code abort: ...]]" replaces "code_abort ...".
wenzelm@57504
  2271
INCOMPATIBILITY.
wenzelm@57504
  2272
wenzelm@57504
  2273
* "declare [[code drop: ...]]" drops all code equations associated
wenzelm@57504
  2274
with the given constants.
wenzelm@57504
  2275
wenzelm@57504
  2276
* Code generations are provided for make, fields, extend and truncate
wenzelm@57504
  2277
operations on records.
haftmann@57437
  2278
wenzelm@57452
  2279
* Command and antiquotation "value" are now hardcoded against nbe and
wenzelm@57452
  2280
ML.  Minor INCOMPATIBILITY.
wenzelm@57452
  2281
wenzelm@57504
  2282
* Renamed command 'enriched_type' to 'functor'. INCOMPATIBILITY.
wenzelm@57504
  2283
wenzelm@57504
  2284
* The symbol "\<newline>" may be used within char or string literals
wenzelm@57504
  2285
to represent (Char Nibble0 NibbleA), i.e. ASCII newline.
wenzelm@57504
  2286
wenzelm@57504
  2287
* Qualified String.implode and String.explode.  INCOMPATIBILITY.
haftmann@56923
  2288
wenzelm@57452
  2289
* Simplifier: Enhanced solver of preconditions of rewrite rules can
wenzelm@57452
  2290
now deal with conjunctions.  For help with converting proofs, the old
wenzelm@57452
  2291
behaviour of the simplifier can be restored like this: declare/using
wenzelm@57452
  2292
[[simp_legacy_precond]].  This configuration option will disappear
wenzelm@57452
  2293
again in the future.  INCOMPATIBILITY.
nipkow@56073
  2294
wenzelm@55139
  2295
* Simproc "finite_Collect" is no longer enabled by default, due to
wenzelm@55139
  2296
spurious crashes and other surprises.  Potential INCOMPATIBILITY.
wenzelm@55139
  2297
wenzelm@57452
  2298
* Moved new (co)datatype package and its dependencies from session
wenzelm@57452
  2299
  "HOL-BNF" to "HOL".  The commands 'bnf', 'wrap_free_constructors',
wenzelm@57452
  2300
  'datatype_new', 'codatatype', 'primcorec', 'primcorecursive' are now
wenzelm@57452
  2301
  part of theory "Main".
wenzelm@57452
  2302
blanchet@55098
  2303
  Theory renamings:
blanchet@55098
  2304
    FunDef.thy ~> Fun_Def.thy (and Fun_Def_Base.thy)
blanchet@55098
  2305
    Library/Wfrec.thy ~> Wfrec.thy
blanchet@55098
  2306
    Library/Zorn.thy ~> Zorn.thy
blanchet@55098
  2307
    Cardinals/Order_Relation.thy ~> Order_Relation.thy
blanchet@55098
  2308
    Library/Order_Union.thy ~> Cardinals/Order_Union.thy
blanchet@55098
  2309
    Cardinals/Cardinal_Arithmetic_Base.thy ~> BNF_Cardinal_Arithmetic.thy
blanchet@55098
  2310
    Cardinals/Cardinal_Order_Relation_Base.thy ~> BNF_Cardinal_Order_Relation.thy
blanchet@55098
  2311
    Cardinals/Constructions_on_Wellorders_Base.thy ~> BNF_Constructions_on_Wellorders.thy
blanchet@55098
  2312
    Cardinals/Wellorder_Embedding_Base.thy ~> BNF_Wellorder_Embedding.thy
blanchet@55098
  2313
    Cardinals/Wellorder_Relation_Base.thy ~> BNF_Wellorder_Relation.thy
blanchet@55098
  2314
    BNF/Ctr_Sugar.thy ~> Ctr_Sugar.thy
blanchet@55098
  2315
    BNF/Basic_BNFs.thy ~> Basic_BNFs.thy
blanchet@55098
  2316
    BNF/BNF_Comp.thy ~> BNF_Comp.thy
blanchet@55098
  2317
    BNF/BNF_Def.thy ~> BNF_Def.thy
blanchet@55098
  2318
    BNF/BNF_FP_Base.thy ~> BNF_FP_Base.thy
blanchet@55098
  2319
    BNF/BNF_GFP.thy ~> BNF_GFP.thy
blanchet@55098
  2320
    BNF/BNF_LFP.thy ~> BNF_LFP.thy
blanchet@55098
  2321
    BNF/BNF_Util.thy ~> BNF_Util.thy
blanchet@55098
  2322
    BNF/Coinduction.thy ~> Coinduction.thy
blanchet@55098
  2323
    BNF/More_BNFs.thy ~> Library/More_BNFs.thy
blanchet@55098
  2324
    BNF/Countable_Type.thy ~> Library/Countable_Set_Type.thy
blanchet@55098
  2325
    BNF/Examples/* ~> BNF_Examples/*
wenzelm@57452
  2326
blanchet@55098
  2327
  New theories:
blanchet@55098
  2328
    Wellorder_Extension.thy (split from Zorn.thy)
blanchet@55098
  2329
    Library/Cardinal_Notations.thy
traytel@56942
  2330
    Library/BNF_Axomatization.thy
blanchet@55098
  2331
    BNF_Examples/Misc_Primcorec.thy
blanchet@55098
  2332
    BNF_Examples/Stream_Processor.thy
wenzelm@57452
  2333
blanchet@55519
  2334
  Discontinued theories:
blanchet@55098
  2335
    BNF/BNF.thy
blanchet@55098
  2336
    BNF/Equiv_Relations_More.thy
wenzelm@57452
  2337
wenzelm@57452
  2338
INCOMPATIBILITY.
blanchet@55098
  2339
blanchet@56118
  2340
* New (co)datatype package:
wenzelm@57452
  2341
  - Command 'primcorec' is fully implemented.
wenzelm@57452
  2342
  - Command 'datatype_new' generates size functions ("size_xxx" and
wenzelm@57452
  2343
    "size") as required by 'fun'.
wenzelm@57452
  2344
  - BNFs are integrated with the Lifting tool and new-style
wenzelm@57452
  2345
    (co)datatypes with Transfer.
wenzelm@57452
  2346
  - Renamed commands:
blanchet@55875
  2347
      datatype_new_compat ~> datatype_compat
blanchet@55875
  2348
      primrec_new ~> primrec
blanchet@55875
  2349
      wrap_free_constructors ~> free_constructors
blanchet@55875
  2350
    INCOMPATIBILITY.
wenzelm@57452
  2351
  - The generated constants "xxx_case" and "xxx_rec" have been renamed
blanchet@55875
  2352
    "case_xxx" and "rec_xxx" (e.g., "prod_case" ~> "case_prod").
blanchet@55875
  2353
    INCOMPATIBILITY.
wenzelm@57452
  2354
  - The constant "xxx_(un)fold" and related theorems are no longer
wenzelm@57452
  2355
    generated.  Use "xxx_(co)rec" or define "xxx_(un)fold" manually
wenzelm@57452
  2356
    using "prim(co)rec".
blanchet@55875
  2357
    INCOMPATIBILITY.
wenzelm@57452
  2358
  - No discriminators are generated for nullary constructors by
wenzelm@57452
  2359
    default, eliminating the need for the odd "=:" syntax.
blanchet@57091
  2360
    INCOMPATIBILITY.
wenzelm@57452
  2361
  - No discriminators or selectors are generated by default by
blanchet@57094
  2362
    "datatype_new", unless custom names are specified or the new
blanchet@57094
  2363
    "discs_sels" option is passed.
blanchet@57094
  2364
    INCOMPATIBILITY.
blanchet@55875
  2365
blanchet@55643
  2366
* Old datatype package:
wenzelm@57452
  2367
  - The generated theorems "xxx.cases" and "xxx.recs" have been
wenzelm@57452
  2368
    renamed "xxx.case" and "xxx.rec" (e.g., "sum.cases" ->
wenzelm@57452
  2369
    "sum.case").  INCOMPATIBILITY.
wenzelm@57452
  2370
  - The generated constants "xxx_case", "xxx_rec", and "xxx_size" have
wenzelm@57452
  2371
    been renamed "case_xxx", "rec_xxx", and "size_xxx" (e.g.,
wenzelm@57452
  2372
    "prod_case" ~> "case_prod").  INCOMPATIBILITY.
wenzelm@57452
  2373
wenzelm@57452
  2374
* The types "'a list" and "'a option", their set and map functions,
wenzelm@57452
  2375
  their relators, and their selectors are now produced using the new
wenzelm@57452
  2376
  BNF-based datatype package.
wenzelm@57452
  2377
blanchet@55519
  2378
  Renamed constants:
blanchet@55519
  2379
    Option.set ~> set_option
blanchet@55519
  2380
    Option.map ~> map_option
blanchet@55525
  2381
    option_rel ~> rel_option
wenzelm@57452
  2382
blanchet@55519
  2383
  Renamed theorems:
blanchet@55585
  2384
    set_def ~> set_rec[abs_def]
blanchet@55519
  2385
    map_def ~> map_rec[abs_def]
blanchet@55519
  2386
    Option.map_def ~> map_option_case[abs_def] (with "case_option" instead of "rec_option")
blanchet@56652
  2387
    option.recs ~> option.rec
blanchet@55524
  2388
    list_all2_def ~> list_all2_iff
blanchet@55585
  2389
    set.simps ~> set_simps (or the slightly different "list.set")
blanchet@55519
  2390
    map.simps ~> list.map
blanchet@55519
  2391
    hd.simps ~> list.sel(1)
blanchet@55519
  2392
    tl.simps ~> list.sel(2-3)
blanchet@55519
  2393
    the.simps ~> option.sel
wenzelm@57452
  2394
wenzelm@57452
  2395
INCOMPATIBILITY.
blanchet@55519
  2396
blanchet@55933
  2397
* The following map functions and relators have been renamed:
blanchet@55939
  2398
    sum_map ~> map_sum
blanchet@55939
  2399
    map_pair ~> map_prod
blanchet@55944
  2400
    prod_rel ~> rel_prod
blanchet@55943
  2401
    sum_rel ~> rel_sum
blanchet@55945
  2402
    fun_rel ~> rel_fun
blanchet@55942
  2403
    set_rel ~> rel_set
blanchet@55942
  2404
    filter_rel ~> rel_filter
wenzelm@57452
  2405
    fset_rel ~> rel_fset (in "src/HOL/Library/FSet.thy")
wenzelm@57452
  2406
    cset_rel ~> rel_cset (in "src/HOL/Library/Countable_Set_Type.thy")
wenzelm@57452
  2407
    vset ~> rel_vset (in "src/HOL/Library/Quotient_Set.thy")
wenzelm@57452
  2408
wenzelm@57452
  2409
INCOMPATIBILITY.
wenzelm@57452
  2410
kuncar@57826
  2411
* Lifting and Transfer:
kuncar@57826
  2412
  - a type variable as a raw type is supported
kuncar@57826
  2413
  - stronger reflexivity prover
kuncar@57826
  2414
  - rep_eq is always generated by lift_definition
wenzelm@57856
  2415
  - setup for Lifting/Transfer is now automated for BNFs
kuncar@57826
  2416
    + holds for BNFs that do not contain a dead variable
wenzelm@57856
  2417
    + relator_eq, relator_mono, relator_distr, relator_domain,
kuncar@57826
  2418
      relator_eq_onp, quot_map, transfer rules for bi_unique, bi_total,
kuncar@57826
  2419
      right_unique, right_total, left_unique, left_total are proved
kuncar@57826
  2420
      automatically
kuncar@57826
  2421
    + definition of a predicator is generated automatically
kuncar@57826
  2422
    + simplification rules for a predicator definition are proved
kuncar@57826
  2423
      automatically for datatypes
kuncar@57826
  2424
  - consolidation of the setup of Lifting/Transfer
wenzelm@57856
  2425
    + property that a relator preservers reflexivity is not needed any
kuncar@57826
  2426
      more
kuncar@57826
  2427
      Minor INCOMPATIBILITY.
wenzelm@57856
  2428
    + left_total and left_unique rules are now transfer rules
kuncar@57826
  2429
      (reflexivity_rule attribute not needed anymore)
kuncar@57826
  2430
      INCOMPATIBILITY.
wenzelm@57856
  2431
    + Domainp does not have to be a separate assumption in
kuncar@57826
  2432
      relator_domain theorems (=> more natural statement)
kuncar@57826
  2433
      INCOMPATIBILITY.
kuncar@57826
  2434
  - registration of code equations is more robust
kuncar@57826
  2435
    Potential INCOMPATIBILITY.
kuncar@57826
  2436
  - respectfulness proof obligation is preprocessed to a more readable
kuncar@57826
  2437
    form
kuncar@57826
  2438
    Potential INCOMPATIBILITY.
kuncar@57826
  2439
  - eq_onp is always unfolded in respectfulness proof obligation
kuncar@57826
  2440
    Potential INCOMPATIBILITY.
wenzelm@57856
  2441
  - unregister lifting setup for Code_Numeral.integer and
kuncar@57826
  2442
    Code_Numeral.natural
kuncar@57826
  2443
    Potential INCOMPATIBILITY.
kuncar@57826
  2444
  - Lifting.invariant -> eq_onp
kuncar@57826
  2445
    INCOMPATIBILITY.
wenzelm@57856
  2446
wenzelm@57508
  2447
* New internal SAT solver "cdclite" that produces models and proof
wenzelm@57508
  2448
traces.  This solver replaces the internal SAT solvers "enumerate" and
wenzelm@57508
  2449
"dpll".  Applications that explicitly used one of these two SAT
wenzelm@57508
  2450
solvers should use "cdclite" instead. In addition, "cdclite" is now
wenzelm@57508
  2451
the default SAT solver for the "sat" and "satx" proof methods and
wenzelm@57508
  2452
corresponding tactics; the old default can be restored using "declare
wenzelm@57508
  2453
[[sat_solver = zchaff_with_proofs]]".  Minor INCOMPATIBILITY.
wenzelm@57508
  2454
wenzelm@57508
  2455
* SMT module: A new version of the SMT module, temporarily called
wenzelm@57508
  2456
"SMT2", uses SMT-LIB 2 and supports recent versions of Z3 (e.g.,
wenzelm@57508
  2457
4.3). The new proof method is called "smt2". CVC3 and CVC4 are also
wenzelm@57508
  2458
supported as oracles. Yices is no longer supported, because no version
wenzelm@57508
  2459
of the solver can handle both SMT-LIB 2 and quantifiers.
wenzelm@57508
  2460
wenzelm@57508
  2461
* Activation of Z3 now works via "z3_non_commercial" system option
wenzelm@57508
  2462
(without requiring restart), instead of former settings variable
wenzelm@57508
  2463
"Z3_NON_COMMERCIAL".  The option can be edited in Isabelle/jEdit menu
wenzelm@57508
  2464
Plugin Options / Isabelle / General.
wenzelm@57508
  2465
wenzelm@57508
  2466
* Sledgehammer:
wenzelm@57508
  2467
  - Z3 can now produce Isar proofs.
wenzelm@57508
  2468
  - MaSh overhaul:
blanchet@57532
  2469
    . New SML-based learning algorithms eliminate the dependency on
wenzelm@57508
  2470
      Python and increase performance and reliability.
wenzelm@57508
  2471
    . MaSh and MeSh are now used by default together with the
wenzelm@57508
  2472
      traditional MePo (Meng-Paulson) relevance filter. To disable
wenzelm@57508
  2473
      MaSh, set the "MaSh" system option in Isabelle/jEdit Plugin
wenzelm@57508
  2474
      Options / Isabelle / General to "none".
wenzelm@57508
  2475
  - New option:
wenzelm@57508
  2476
      smt_proofs
wenzelm@57508
  2477
  - Renamed options:
wenzelm@57508
  2478
      isar_compress ~> compress
wenzelm@57508
  2479
      isar_try0 ~> try0
wenzelm@57508
  2480
wenzelm@57508
  2481
INCOMPATIBILITY.
wenzelm@57508
  2482
wenzelm@57508
  2483
* Removed solvers remote_cvc3 and remote_z3. Use cvc3 and z3 instead.
wenzelm@57508
  2484
wenzelm@57508
  2485
* Nitpick:
wenzelm@57508
  2486
  - Fixed soundness bug whereby mutually recursive datatypes could
wenzelm@57508
  2487
    take infinite values.
wenzelm@57508
  2488
  - Fixed soundness bug with low-level number functions such as
wenzelm@57508
  2489
    "Abs_Integ" and "Rep_Integ".
wenzelm@57508
  2490
  - Removed "std" option.
wenzelm@57508
  2491
  - Renamed "show_datatypes" to "show_types" and "hide_datatypes" to
wenzelm@57508
  2492
    "hide_types".
wenzelm@57508
  2493
wenzelm@57508
  2494
* Metis: Removed legacy proof method 'metisFT'. Use 'metis
wenzelm@57508
  2495
(full_types)' instead. INCOMPATIBILITY.
wenzelm@57508
  2496
wenzelm@57508
  2497
* Try0: Added 'algebra' and 'meson' to the set of proof methods.
wenzelm@57508
  2498
wenzelm@57508
  2499
* Adjustion of INF and SUP operations:
wenzelm@57508
  2500
  - Elongated constants INFI and SUPR to INFIMUM and SUPREMUM.
wenzelm@57508
  2501
  - Consolidated theorem names containing INFI and SUPR: have INF and
wenzelm@57508
  2502
    SUP instead uniformly.
wenzelm@57508
  2503
  - More aggressive normalization of expressions involving INF and Inf
wenzelm@57508
  2504
    or SUP and Sup.
wenzelm@57508
  2505
  - INF_image and SUP_image do not unfold composition.
wenzelm@57508
  2506
  - Dropped facts INF_comp, SUP_comp.
wenzelm@57508
  2507
  - Default congruence rules strong_INF_cong and strong_SUP_cong, with
wenzelm@57508
  2508
    simplifier implication in premises.  Generalize and replace former
wenzelm@57508
  2509
    INT_cong, SUP_cong
wenzelm@57508
  2510
wenzelm@57508
  2511
INCOMPATIBILITY.
wenzelm@57508
  2512
wenzelm@57508
  2513
* SUP and INF generalized to conditionally_complete_lattice.
wenzelm@57508
  2514
wenzelm@57508
  2515
* Swapped orientation of facts image_comp and vimage_comp:
wenzelm@57508
  2516
wenzelm@57508
  2517
  image_compose ~> image_comp [symmetric]
wenzelm@57508
  2518
  image_comp ~> image_comp [symmetric]
wenzelm@57508
  2519
  vimage_compose ~> vimage_comp [symmetric]
wenzelm@57508
  2520
  vimage_comp ~> vimage_comp [symmetric]
wenzelm@57508
  2521
wenzelm@57508
  2522
INCOMPATIBILITY.
wenzelm@57508
  2523
wenzelm@57504
  2524
* Theory reorganization: split of Big_Operators.thy into
wenzelm@57504
  2525
Groups_Big.thy and Lattices_Big.thy.
blanchet@55098
  2526
haftmann@57418
  2527
* Consolidated some facts about big group operators:
haftmann@57418
  2528
haftmann@57418
  2529
    setsum_0' ~> setsum.neutral
haftmann@57418
  2530
    setsum_0 ~> setsum.neutral_const
haftmann@57418
  2531
    setsum_addf ~> setsum.distrib
haftmann@57418
  2532
    setsum_cartesian_product ~> setsum.cartesian_product
haftmann@57418
  2533
    setsum_cases ~> setsum.If_cases
haftmann@57418
  2534
    setsum_commute ~> setsum.commute
haftmann@57418
  2535
    setsum_cong ~> setsum.cong
haftmann@57418
  2536
    setsum_delta ~> setsum.delta
haftmann@57418
  2537
    setsum_delta' ~> setsum.delta'
haftmann@57418
  2538
    setsum_diff1' ~> setsum.remove
haftmann@57418
  2539
    setsum_empty ~> setsum.empty
haftmann@57418
  2540
    setsum_infinite ~> setsum.infinite
haftmann@57418
  2541
    setsum_insert ~> setsum.insert
haftmann@57418
  2542
    setsum_inter_restrict'' ~> setsum.inter_filter
haftmann@57418
  2543
    setsum_mono_zero_cong_left ~> setsum.mono_neutral_cong_left
haftmann@57418
  2544
    setsum_mono_zero_cong_right ~> setsum.mono_neutral_cong_right
haftmann@57418
  2545
    setsum_mono_zero_left ~> setsum.mono_neutral_left
haftmann@57418
  2546
    setsum_mono_zero_right ~> setsum.mono_neutral_right
haftmann@57418
  2547
    setsum_reindex ~> setsum.reindex
haftmann@57418
  2548
    setsum_reindex_cong ~> setsum.reindex_cong
haftmann@57418
  2549
    setsum_reindex_nonzero ~> setsum.reindex_nontrivial
haftmann@57418
  2550
    setsum_restrict_set ~> setsum.inter_restrict
haftmann@57418
  2551
    setsum_Plus ~> setsum.Plus
haftmann@57418
  2552
    setsum_setsum_restrict ~> setsum.commute_restrict
haftmann@57418
  2553
    setsum_Sigma ~> setsum.Sigma
haftmann@57418
  2554
    setsum_subset_diff ~> setsum.subset_diff
haftmann@57418
  2555
    setsum_Un_disjoint ~> setsum.union_disjoint
haftmann@57418
  2556
    setsum_UN_disjoint ~> setsum.UNION_disjoint
haftmann@57418
  2557
    setsum_Un_Int ~> setsum.union_inter
haftmann@57418
  2558
    setsum_Union_disjoint ~> setsum.Union_disjoint
haftmann@57418
  2559
    setsum_UNION_zero ~> setsum.Union_comp
haftmann@57418
  2560
    setsum_Un_zero ~> setsum.union_inter_neutral
haftmann@57418
  2561
    strong_setprod_cong ~> setprod.strong_cong
haftmann@57418
  2562
    strong_setsum_cong ~> setsum.strong_cong
haftmann@57418
  2563
    setprod_1' ~> setprod.neutral
haftmann@57418
  2564
    setprod_1 ~> setprod.neutral_const
haftmann@57418
  2565
    setprod_cartesian_product ~> setprod.cartesian_product
haftmann@57418
  2566
    setprod_cong ~> setprod.cong
haftmann@57418
  2567
    setprod_delta ~> setprod.delta
haftmann@57418
  2568
    setprod_delta' ~> setprod.delta'
haftmann@57418
  2569
    setprod_empty ~> setprod.empty
haftmann@57418
  2570
    setprod_infinite ~> setprod.infinite
haftmann@57418
  2571
    setprod_insert ~> setprod.insert
haftmann@57418
  2572
    setprod_mono_one_cong_left ~> setprod.mono_neutral_cong_left
haftmann@57418
  2573
    setprod_mono_one_cong_right ~> setprod.mono_neutral_cong_right
haftmann@57418
  2574
    setprod_mono_one_left ~> setprod.mono_neutral_left
haftmann@57418
  2575
    setprod_mono_one_right ~> setprod.mono_neutral_right
haftmann@57418
  2576
    setprod_reindex ~> setprod.reindex
haftmann@57418
  2577
    setprod_reindex_cong ~> setprod.reindex_cong
haftmann@57418
  2578
    setprod_reindex_nonzero ~> setprod.reindex_nontrivial
haftmann@57418
  2579
    setprod_Sigma ~> setprod.Sigma
haftmann@57418
  2580
    setprod_subset_diff ~> setprod.subset_diff
haftmann@57418
  2581
    setprod_timesf ~> setprod.distrib
haftmann@57418
  2582
    setprod_Un2 ~> setprod.union_diff2
haftmann@57418
  2583
    setprod_Un_disjoint ~> setprod.union_disjoint
haftmann@57418
  2584
    setprod_UN_disjoint ~> setprod.UNION_disjoint
haftmann@57418
  2585
    setprod_Un_Int ~> setprod.union_inter
haftmann@57418
  2586
    setprod_Union_disjoint ~> setprod.Union_disjoint
haftmann@57418
  2587
    setprod_Un_one ~> setprod.union_inter_neutral
haftmann@57418
  2588
haftmann@57418
  2589
  Dropped setsum_cong2 (simple variant of setsum.cong).
haftmann@57418
  2590
  Dropped setsum_inter_restrict' (simple variant of setsum.inter_restrict)
haftmann@57418
  2591
  Dropped setsum_reindex_id, setprod_reindex_id
haftmann@57418
  2592
    (simple variants of setsum.reindex [symmetric], setprod.reindex [symmetric]).
haftmann@57418
  2593
wenzelm@57452
  2594
INCOMPATIBILITY.
wenzelm@57452
  2595
haftmann@54864
  2596
* Abolished slightly odd global lattice interpretation for min/max.
haftmann@54864
  2597
wenzelm@57452
  2598
  Fact consolidations:
haftmann@54864
  2599
    min_max.inf_assoc ~> min.assoc
haftmann@54864
  2600
    min_max.inf_commute ~> min.commute
haftmann@54864
  2601
    min_max.inf_left_commute ~> min.left_commute
haftmann@54864
  2602
    min_max.inf_idem ~> min.idem
haftmann@54864
  2603
    min_max.inf_left_idem ~> min.left_idem
haftmann@54864
  2604
    min_max.inf_right_idem ~> min.right_idem
haftmann@54864
  2605
    min_max.sup_assoc ~> max.assoc
haftmann@54864
  2606
    min_max.sup_commute ~> max.commute
haftmann@54864
  2607
    min_max.sup_left_commute ~> max.left_commute
haftmann@54864
  2608
    min_max.sup_idem ~> max.idem
haftmann@54864
  2609
    min_max.sup_left_idem ~> max.left_idem
haftmann@54864
  2610
    min_max.sup_inf_distrib1 ~> max_min_distrib2
haftmann@54864
  2611
    min_max.sup_inf_distrib2 ~> max_min_distrib1
haftmann@54864
  2612
    min_max.inf_sup_distrib1 ~> min_max_distrib2
haftmann@54864
  2613
    min_max.inf_sup_distrib2 ~> min_max_distrib1
haftmann@54864
  2614
    min_max.distrib ~> min_max_distribs
haftmann@54864
  2615
    min_max.inf_absorb1 ~> min.absorb1
haftmann@54864
  2616
    min_max.inf_absorb2 ~> min.absorb2
haftmann@54864
  2617
    min_max.sup_absorb1 ~> max.absorb1
haftmann@54864
  2618
    min_max.sup_absorb2 ~> max.absorb2
haftmann@54864
  2619
    min_max.le_iff_inf ~> min.absorb_iff1
haftmann@54864
  2620
    min_max.le_iff_sup ~> max.absorb_iff2
haftmann@54864
  2621
    min_max.inf_le1 ~> min.cobounded1
haftmann@54864
  2622
    min_max.inf_le2 ~> min.cobounded2
haftmann@54864
  2623
    le_maxI1, min_max.sup_ge1 ~> max.cobounded1
haftmann@54864
  2624
    le_maxI2, min_max.sup_ge2 ~> max.cobounded2
haftmann@54864
  2625
    min_max.le_infI1 ~> min.coboundedI1
haftmann@54864
  2626
    min_max.le_infI2 ~> min.coboundedI2
haftmann@54864
  2627
    min_max.le_supI1 ~> max.coboundedI1
haftmann@54864
  2628
    min_max.le_supI2 ~> max.coboundedI2
haftmann@54864
  2629
    min_max.less_infI1 ~> min.strict_coboundedI1
haftmann@54864
  2630
    min_max.less_infI2 ~> min.strict_coboundedI2
haftmann@54864
  2631
    min_max.less_supI1 ~> max.strict_coboundedI1
haftmann@54864
  2632
    min_max.less_supI2 ~> max.strict_coboundedI2
haftmann@54864
  2633
    min_max.inf_mono ~> min.mono
haftmann@54864
  2634
    min_max.sup_mono ~> max.mono
haftmann@54864
  2635
    min_max.le_infI, min_max.inf_greatest ~> min.boundedI
haftmann@54864
  2636
    min_max.le_supI, min_max.sup_least ~> max.boundedI
haftmann@54864
  2637
    min_max.le_inf_iff ~> min.bounded_iff
haftmann@54864
  2638
    min_max.le_sup_iff ~> max.bounded_iff
haftmann@54864
  2639
haftmann@54864
  2640
For min_max.inf_sup_aci, prefer (one of) min.commute, min.assoc,
haftmann@54864
  2641
min.left_commute, min.left_idem, max.commute, max.assoc,
haftmann@54864
  2642
max.left_commute, max.left_idem directly.
haftmann@54864
  2643
wenzelm@57452
  2644
For min_max.inf_sup_ord, prefer (one of) min.cobounded1,
wenzelm@57452
  2645
min.cobounded2, max.cobounded1m max.cobounded2 directly.
haftmann@54864
  2646
haftmann@56807
  2647
For min_ac or max_ac, prefer more general collection ac_simps.
haftmann@54864
  2648
wenzelm@58604
  2649
INCOMPATIBILITY.
haftmann@54864
  2650
wenzelm@57452
  2651
* Theorem disambiguation Inf_le_Sup (on finite sets) ~>
wenzelm@57452
  2652
Inf_fin_le_Sup_fin.  INCOMPATIBILITY.
haftmann@54745
  2653
haftmann@54295
  2654
* Qualified constant names Wellfounded.acc, Wellfounded.accp.
haftmann@54295
  2655
INCOMPATIBILITY.
haftmann@54295
  2656
haftmann@54228
  2657
* Fact generalization and consolidation:
haftmann@54228
  2658
    neq_one_mod_two, mod_2_not_eq_zero_eq_one_int ~> not_mod_2_eq_0_eq_1
wenzelm@57452
  2659
wenzelm@57452
  2660
INCOMPATIBILITY.
wenzelm@57452
  2661
wenzelm@57452
  2662
* Purely algebraic definition of even.  Fact generalization and
wenzelm@57452
  2663
  consolidation:
haftmann@54228
  2664
    nat_even_iff_2_dvd, int_even_iff_2_dvd ~> even_iff_2_dvd
haftmann@54228
  2665
    even_zero_(nat|int) ~> even_zero
wenzelm@57452
  2666
haftmann@54228
  2667
INCOMPATIBILITY.
wenzelm@54055
  2668
haftmann@54489
  2669
* Abolished neg_numeral.
wenzelm@57452
  2670
  - Canonical representation for minus one is "- 1".
wenzelm@57452
  2671
  - Canonical representation for other negative numbers is "- (numeral _)".
wenzelm@57452
  2672
  - When devising rule sets for number calculation, consider the
haftmann@54587
  2673
    following canonical cases: 0, 1, numeral _, - 1, - numeral _.
wenzelm@57452
  2674
  - HOLogic.dest_number also recognizes numerals in non-canonical forms
wenzelm@54893
  2675
    like "numeral One", "- numeral One", "- 0" and even "- ... - _".
wenzelm@57452
  2676
  - Syntax for negative numerals is mere input syntax.
wenzelm@57452
  2677
haftmann@56964
  2678
INCOMPATIBILITY.
haftmann@54489
  2679
wenzelm@57517
  2680
* Reduced name variants for rules on associativity and commutativity:
wenzelm@57517
  2681
wenzelm@57517
  2682
    add_assoc ~> add.assoc
wenzelm@57517
  2683
    add_commute ~> add.commute
wenzelm@57517
  2684
    add_left_commute ~> add.left_commute
wenzelm@57517
  2685
    mult_assoc ~> mult.assoc
wenzelm@57517
  2686
    mult_commute ~> mult.commute
wenzelm@57517
  2687
    mult_left_commute ~> mult.left_commute
wenzelm@57517
  2688
    nat_add_assoc ~> add.assoc
wenzelm@57517
  2689
    nat_add_commute ~> add.commute
wenzelm@57517
  2690
    nat_add_left_commute ~> add.left_commute
wenzelm@57517
  2691
    nat_mult_assoc ~> mult.assoc
wenzelm@57517
  2692
    nat_mult_commute ~> mult.commute
wenzelm@57517
  2693
    eq_assoc ~> iff_assoc
wenzelm@57517
  2694
    eq_left_commute ~> iff_left_commute
wenzelm@57517
  2695
wenzelm@57517
  2696
INCOMPATIBILITY.
wenzelm@57517
  2697
wenzelm@57650
  2698
* Fact collections add_ac and mult_ac are considered old-fashioned.
wenzelm@57637
  2699
Prefer ac_simps instead, or specify rules
wenzelm@57637
  2700
(add|mult).(assoc|commute|left_commute) individually.
wenzelm@57517
  2701
haftmann@54230
  2702
* Elimination of fact duplicates:
haftmann@54230
  2703
    equals_zero_I ~> minus_unique
haftmann@54230
  2704
    diff_eq_0_iff_eq ~> right_minus_eq
traytel@54588
  2705
    nat_infinite ~> infinite_UNIV_nat
traytel@54588
  2706
    int_infinite ~> infinite_UNIV_int
wenzelm@57452
  2707
haftmann@54230
  2708
INCOMPATIBILITY.
haftmann@54230
  2709
haftmann@54230
  2710
* Fact name consolidation:
haftmann@54230
  2711
    diff_def, diff_minus, ab_diff_minus ~> diff_conv_add_uminus
haftmann@54250
  2712
    minus_le_self_iff ~> neg_less_eq_nonneg
haftmann@54250
  2713
    le_minus_self_iff ~> less_eq_neg_nonpos
haftmann@54250
  2714
    neg_less_nonneg ~> neg_less_pos
haftmann@54250
  2715
    less_minus_self_iff ~> less_neg_neg [simp]
wenzelm@57452
  2716
haftmann@54230
  2717
INCOMPATIBILITY.
haftmann@54230
  2718
haftmann@54230
  2719
* More simplification rules on unary and binary minus:
haftmann@54230
  2720
add_diff_cancel, add_diff_cancel_left, add_le_same_cancel1,
haftmann@54230
  2721
add_le_same_cancel2, add_less_same_cancel1, add_less_same_cancel2,
haftmann@54230
  2722
add_minus_cancel, diff_add_cancel, le_add_same_cancel1,
haftmann@54230
  2723
le_add_same_cancel2, less_add_same_cancel1, less_add_same_cancel2,
wenzelm@57452
  2724
minus_add_cancel, uminus_add_conv_diff.  These correspondingly have
wenzelm@57452
  2725
been taken away from fact collections algebra_simps and field_simps.
wenzelm@57452
  2726
INCOMPATIBILITY.
haftmann@54230
  2727
haftmann@54230
  2728
To restore proofs, the following patterns are helpful:
haftmann@542