NEWS
author nipkow
Thu Oct 20 19:39:27 2016 +0200 (2016-10-20)
changeset 64323 20d15328b248
parent 64309 1bde86d10013
parent 64322 72060e61ca9d
child 64342 53fb4a19fb98
permissions -rw-r--r--
tuned
wenzelm@57491
     1
Isabelle NEWS -- history of user-relevant changes
wenzelm@57491
     2
=================================================
wenzelm@2553
     3
wenzelm@62114
     4
(Note: Isabelle/jEdit shows a tree-view of the NEWS file in Sidekick.)
wenzelm@60006
     5
wenzelm@60331
     6
wenzelm@64072
     7
New in Isabelle2016-1 (December 2016)
wenzelm@64072
     8
-------------------------------------
wenzelm@62216
     9
wenzelm@62440
    10
*** General ***
wenzelm@62440
    11
wenzelm@63273
    12
* Command 'bundle' provides a local theory target to define a bundle
wenzelm@63273
    13
from the body of specification commands (such as 'declare',
wenzelm@63273
    14
'declaration', 'notation', 'lemmas', 'lemma'). For example:
wenzelm@63273
    15
wenzelm@63273
    16
bundle foo
wenzelm@63273
    17
begin
wenzelm@63273
    18
  declare a [simp]
wenzelm@63273
    19
  declare b [intro]
wenzelm@63273
    20
end
wenzelm@63272
    21
wenzelm@63282
    22
* Command 'unbundle' is like 'include', but works within a local theory
wenzelm@63282
    23
context. Unlike "context includes ... begin", the effect of 'unbundle'
wenzelm@63282
    24
on the target context persists, until different declarations are given.
wenzelm@63282
    25
wenzelm@63977
    26
* Simplified outer syntax: uniform category "name" includes long
wenzelm@63977
    27
identifiers. Former "xname" / "nameref" / "name reference" has been
wenzelm@63977
    28
discontinued.
wenzelm@63977
    29
wenzelm@63977
    30
* Embedded content (e.g. the inner syntax of types, terms, props) may be
wenzelm@63977
    31
delimited uniformly via cartouches. This works better than old-fashioned
wenzelm@63977
    32
quotes when sub-languages are nested.
wenzelm@63977
    33
wenzelm@63977
    34
* Mixfix annotations support general block properties, with syntax
wenzelm@63977
    35
"(\<open>x=a y=b z \<dots>\<close>". Notable property names are "indent", "consistent",
wenzelm@63977
    36
"unbreakable", "markup". The existing notation "(DIGITS" is equivalent
wenzelm@63977
    37
to "(\<open>indent=DIGITS\<close>". The former notation "(00" for unbreakable blocks
wenzelm@63977
    38
is superseded by "(\<open>unbreabable\<close>" --- rare INCOMPATIBILITY.
nipkow@63650
    39
wenzelm@63383
    40
* Proof method "blast" is more robust wrt. corner cases of Pure
wenzelm@63383
    41
statements without object-logic judgment.
wenzelm@63383
    42
wenzelm@63624
    43
* Commands 'prf' and 'full_prf' are somewhat more informative (again):
wenzelm@63977
    44
proof terms are reconstructed and cleaned from administrative thm nodes.
wenzelm@63977
    45
wenzelm@63977
    46
* Code generator: config option "code_timing" triggers measurements of
wenzelm@63977
    47
different phases of code generation. See src/HOL/ex/Code_Timing.thy for
wenzelm@63977
    48
examples.
wenzelm@63977
    49
wenzelm@63977
    50
* Code generator: implicits in Scala (stemming from type class
wenzelm@63977
    51
instances) are generated into companion object of corresponding type
wenzelm@63977
    52
class, to resolve some situations where ambiguities may occur.
wenzelm@63977
    53
wenzelm@63977
    54
* Splitter in simp, auto and friends:
wenzelm@63977
    55
  - The syntax "split add" has been discontinued, use plain "split",
wenzelm@63977
    56
    INCOMPATIBILITY.
wenzelm@63977
    57
  - For situations with many conditional or case expressions, there is
wenzelm@63977
    58
    an alternative splitting strategy that can be much faster. It is
wenzelm@63977
    59
    selected by writing "split!" instead of "split". It applies safe
wenzelm@63977
    60
    introduction and elimination rules after each split rule. As a
wenzelm@63977
    61
    result the subgoal may be split into several subgoals.
wenzelm@63624
    62
haftmann@64013
    63
* Solve direct: option 'solve_direct_strict_warnings' gives explicit
haftmann@64013
    64
  warnings for lemma statements with trivial proofs.
haftmann@64013
    65
wenzelm@62440
    66
wenzelm@62904
    67
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@62904
    68
wenzelm@63977
    69
* Highlighting of entity def/ref positions wrt. cursor.
wenzelm@63977
    70
wenzelm@63977
    71
* Action "isabelle.select-entity" (shortcut CS+ENTER) selects all
wenzelm@63977
    72
occurences of the formal entity at the caret position. This facilitates
wenzelm@63977
    73
systematic renaming.
wenzelm@63977
    74
wenzelm@63977
    75
* PIDE document markup works across multiple Isar commands, e.g. the
wenzelm@63977
    76
results established at the end of a proof are properly identified in the
wenzelm@63977
    77
theorem statement.
wenzelm@63977
    78
wenzelm@63977
    79
* Cartouche abbreviations work both for " and ` to accomodate typical
wenzelm@63977
    80
situations where old ASCII notation may be updated.
wenzelm@63977
    81
wenzelm@63875
    82
* Dockable window "Symbols" also provides access to 'abbrevs' from the
wenzelm@63875
    83
outer syntax of the current theory buffer. This provides clickable
wenzelm@63875
    84
syntax templates, including entries with empty abbrevs name (which are
wenzelm@63875
    85
inaccessible via keyboard completion).
wenzelm@63875
    86
wenzelm@63022
    87
* IDE support for the Isabelle/Pure bootstrap process, with the
wenzelm@63022
    88
following independent stages:
wenzelm@63022
    89
wenzelm@63022
    90
  src/Pure/ROOT0.ML
wenzelm@63022
    91
  src/Pure/ROOT.ML
wenzelm@63022
    92
  src/Pure/Pure.thy
wenzelm@63022
    93
  src/Pure/ML_Bootstrap.thy
wenzelm@63022
    94
wenzelm@63022
    95
The ML ROOT files act like quasi-theories in the context of theory
wenzelm@63022
    96
ML_Bootstrap: this allows continuous checking of all loaded ML files.
wenzelm@63022
    97
The theory files are presented with a modified header to import Pure
wenzelm@63022
    98
from the running Isabelle instance. Results from changed versions of
wenzelm@63022
    99
each stage are *not* propagated to the next stage, and isolated from the
wenzelm@63022
   100
actual Isabelle/Pure that runs the IDE itself. The sequential
wenzelm@63307
   101
dependencies of the above files are only observed for batch build.
wenzelm@62904
   102
wenzelm@63977
   103
* Isabelle/ML and Standard ML files are presented in Sidekick with the
wenzelm@63977
   104
tree structure of section headings: this special comment format is
wenzelm@63977
   105
described in "implementation" chapter 0, e.g. (*** section ***).
wenzelm@63461
   106
wenzelm@63608
   107
* Sidekick parser "isabelle-context" shows nesting of context blocks
wenzelm@63608
   108
according to 'begin' and 'end' structure.
wenzelm@63608
   109
wenzelm@63474
   110
* Syntactic indentation according to Isabelle outer syntax. Action
wenzelm@63474
   111
"indent-lines" (shortcut C+i) indents the current line according to
wenzelm@63474
   112
command keywords and some command substructure. Action
wenzelm@63455
   113
"isabelle.newline" (shortcut ENTER) indents the old and the new line
wenzelm@63455
   114
according to command keywords only; see also option
wenzelm@63455
   115
"jedit_indent_newline".
wenzelm@63452
   116
wenzelm@63474
   117
* Semantic indentation for unstructured proof scripts ('apply' etc.) via
wenzelm@63474
   118
number of subgoals. This requires information of ongoing document
wenzelm@63474
   119
processing and may thus lag behind, when the user is editing too
wenzelm@63474
   120
quickly; see also option "jedit_script_indent" and
wenzelm@63474
   121
"jedit_script_indent_limit".
wenzelm@63474
   122
wenzelm@63977
   123
* Refined folding mode "isabelle" based on Isar syntax: 'next' and 'qed'
wenzelm@63977
   124
are treated as delimiters for fold structure; 'begin' and 'end'
wenzelm@63977
   125
structure of theory specifications is treated as well.
wenzelm@63236
   126
wenzelm@63751
   127
* Action "isabelle.keymap-merge" asks the user to resolve pending
wenzelm@63751
   128
Isabelle keymap changes that are in conflict with the current jEdit
wenzelm@63751
   129
keymap; non-conflicting changes are always applied implicitly. This
wenzelm@63751
   130
action is automatically invoked on Isabelle/jEdit startup and thus
wenzelm@63751
   131
increases chances that users see new keyboard shortcuts when re-using
wenzelm@63751
   132
old keymaps.
wenzelm@63751
   133
wenzelm@63513
   134
* Command 'proof' provides information about proof outline with cases,
wenzelm@63513
   135
e.g. for proof methods "cases", "induct", "goal_cases".
wenzelm@63513
   136
wenzelm@63528
   137
* Completion templates for commands involving "begin ... end" blocks,
wenzelm@63528
   138
e.g. 'context', 'notepad'.
wenzelm@63528
   139
wenzelm@63581
   140
* Additional abbreviations for syntactic completion may be specified
wenzelm@63871
   141
within the theory header as 'abbrevs'. The theory syntax for 'keywords'
wenzelm@63871
   142
has been simplified accordingly: optional abbrevs need to go into the
wenzelm@63871
   143
new 'abbrevs' section.
wenzelm@63871
   144
wenzelm@63871
   145
* Global abbreviations via $ISABELLE_HOME/etc/abbrevs and
wenzelm@63871
   146
$ISABELLE_HOME_USER/etc/abbrevs are no longer supported. Minor
wenzelm@63871
   147
INCOMPATIBILITY, use 'abbrevs' within theory header instead.
wenzelm@63579
   148
wenzelm@63675
   149
* ML and document antiquotations for file-systems paths are more uniform
wenzelm@63675
   150
and diverse:
wenzelm@63675
   151
wenzelm@63675
   152
  @{path NAME}   -- no file-system check
wenzelm@63675
   153
  @{file NAME}   -- check for plain file
wenzelm@63675
   154
  @{dir NAME}    -- check for directory
wenzelm@63675
   155
wenzelm@63675
   156
Minor INCOMPATIBILITY, former uses of @{file} and @{file_unchecked} may
wenzelm@63675
   157
have to be changed.
wenzelm@63669
   158
wenzelm@63669
   159
wenzelm@63977
   160
*** Document preparation ***
wenzelm@63977
   161
wenzelm@63977
   162
* New symbol \<circle>, e.g. for temporal operator.
wenzelm@63977
   163
wenzelm@64073
   164
* New document and ML antiquotation @{locale} for locales, similar to
wenzelm@64073
   165
existing antiquotation @{class}.
wenzelm@64073
   166
wenzelm@63977
   167
* Mixfix annotations support delimiters like \<^control>\<open>cartouche\<close> --
wenzelm@63977
   168
this allows special forms of document output.
wenzelm@63977
   169
wenzelm@63977
   170
* Raw LaTeX output now works via \<^latex>\<open>...\<close> instead of raw control
wenzelm@63977
   171
symbol \<^raw:...>. INCOMPATIBILITY, notably for LaTeXsugar.thy and its
wenzelm@63977
   172
derivatives.
wenzelm@63977
   173
wenzelm@63977
   174
* \<^raw:...> symbols are no longer supported.
wenzelm@63977
   175
wenzelm@63977
   176
* Old 'header' command is no longer supported (legacy since
wenzelm@63977
   177
Isabelle2015).
wenzelm@63977
   178
wenzelm@63977
   179
wenzelm@62312
   180
*** Isar ***
wenzelm@62312
   181
wenzelm@63180
   182
* Many specification elements support structured statements with 'if' /
wenzelm@63180
   183
'for' eigen-context, e.g. 'axiomatization', 'abbreviation',
wenzelm@63180
   184
'definition', 'inductive', 'function'.
wenzelm@63180
   185
wenzelm@63094
   186
* Toplevel theorem statements support eigen-context notation with 'if' /
wenzelm@63284
   187
'for' (in postfix), which corresponds to 'assumes' / 'fixes' in the
wenzelm@63094
   188
traditional long statement form (in prefix). Local premises are called
wenzelm@63094
   189
"that" or "assms", respectively. Empty premises are *not* bound in the
wenzelm@63094
   190
context: INCOMPATIBILITY.
wenzelm@63094
   191
wenzelm@63039
   192
* Command 'define' introduces a local (non-polymorphic) definition, with
wenzelm@63039
   193
optional abstraction over local parameters. The syntax resembles
wenzelm@63043
   194
'definition' and 'obtain'. It fits better into the Isar language than
wenzelm@63043
   195
old 'def', which is now a legacy feature.
wenzelm@63039
   196
wenzelm@63059
   197
* Command 'obtain' supports structured statements with 'if' / 'for'
wenzelm@63059
   198
context.
wenzelm@63059
   199
wenzelm@62312
   200
* Command '\<proof>' is an alias for 'sorry', with different
wenzelm@62312
   201
typesetting. E.g. to produce proof holes in examples and documentation.
wenzelm@62216
   202
wenzelm@63977
   203
* The defining position of a literal fact \<open>prop\<close> is maintained more
wenzelm@63977
   204
carefully, and made accessible as hyperlink in the Prover IDE.
wenzelm@63977
   205
wenzelm@63977
   206
* Commands 'finally' and 'ultimately' used to expose the result as
wenzelm@63977
   207
literal fact: this accidental behaviour has been discontinued. Rare
wenzelm@63977
   208
INCOMPATIBILITY, use more explicit means to refer to facts in Isar.
wenzelm@63977
   209
wenzelm@63977
   210
* Command 'axiomatization' has become more restrictive to correspond
wenzelm@63977
   211
better to internal axioms as singleton facts with mandatory name. Minor
wenzelm@63977
   212
INCOMPATIBILITY.
wenzelm@62939
   213
wenzelm@63259
   214
* Proof methods may refer to the main facts via the dynamic fact
wenzelm@63259
   215
"method_facts". This is particularly useful for Eisbach method
wenzelm@63259
   216
definitions.
wenzelm@63259
   217
wenzelm@63527
   218
* Proof method "use" allows to modify the main facts of a given method
wenzelm@63527
   219
expression, e.g.
wenzelm@63259
   220
wenzelm@63259
   221
  (use facts in simp)
wenzelm@63259
   222
  (use facts in \<open>simp add: ...\<close>)
wenzelm@63259
   223
wenzelm@63977
   224
* The old proof method "default" has been removed (legacy since
wenzelm@63977
   225
Isabelle2016). INCOMPATIBILITY, use "standard" instead.
wenzelm@63977
   226
wenzelm@62216
   227
haftmann@63165
   228
*** Pure ***
haftmann@63165
   229
wenzelm@63977
   230
* Pure provides basic versions of proof methods "simp" and "simp_all"
wenzelm@63977
   231
that only know about meta-equality (==). Potential INCOMPATIBILITY in
wenzelm@63977
   232
theory imports that merge Pure with e.g. Main of Isabelle/HOL: the order
wenzelm@63977
   233
is relevant to avoid confusion of Pure.simp vs. HOL.simp.
wenzelm@63977
   234
wenzelm@63977
   235
* The command 'unfolding' and proof method "unfold" include a second
wenzelm@63977
   236
stage where given equations are passed through the attribute "abs_def"
wenzelm@63977
   237
before rewriting. This ensures that definitions are fully expanded,
wenzelm@63977
   238
regardless of the actual parameters that are provided. Rare
wenzelm@63977
   239
INCOMPATIBILITY in some corner cases: use proof method (simp only:)
wenzelm@63977
   240
instead, or declare [[unfold_abs_def = false]] in the proof context.
wenzelm@63977
   241
wenzelm@63977
   242
* Type-inference improves sorts of newly introduced type variables for
wenzelm@63977
   243
the object-logic, using its base sort (i.e. HOL.type for Isabelle/HOL).
wenzelm@63977
   244
Thus terms like "f x" or "\<And>x. P x" without any further syntactic context
wenzelm@63977
   245
produce x::'a::type in HOL instead of x::'a::{} in Pure. Rare
wenzelm@63977
   246
INCOMPATIBILITY, need to provide explicit type constraints for Pure
wenzelm@63977
   247
types where this is really intended.
haftmann@63350
   248
haftmann@63165
   249
blanchet@62327
   250
*** HOL ***
blanchet@62327
   251
haftmann@64240
   252
* Sligthly more standardized theorem names:
haftmann@64240
   253
    sgn_times ~> sgn_mult
haftmann@64240
   254
    sgn_mult' ~> Real_Vector_Spaces.sgn_mult
haftmann@64240
   255
    divide_zero_left ~> div_0
haftmann@64240
   256
    zero_mod_left ~> mod_0
haftmann@64240
   257
    divide_zero ~> div_by_0
haftmann@64240
   258
    divide_1 ~> div_by_1
haftmann@64240
   259
    nonzero_mult_divide_cancel_left ~> nonzero_mult_div_cancel_left
haftmann@64240
   260
    div_mult_self1_is_id ~> nonzero_mult_div_cancel_left
haftmann@64240
   261
    nonzero_mult_divide_cancel_right ~> nonzero_mult_div_cancel_right
haftmann@64240
   262
    div_mult_self2_is_id ~> nonzero_mult_div_cancel_right
haftmann@64240
   263
    is_unit_divide_mult_cancel_left ~> is_unit_div_mult_cancel_left
haftmann@64240
   264
    is_unit_divide_mult_cancel_right ~> is_unit_div_mult_cancel_right
haftmann@64242
   265
    mod_div_equality ~> div_mult_mod_eq
haftmann@64242
   266
    mod_div_equality2 ~> mult_div_mod_eq
haftmann@64242
   267
    mod_div_equality3 ~> mod_div_mult_eq
haftmann@64242
   268
    mod_div_equality4 ~> mod_mult_div_eq
haftmann@64242
   269
    minus_div_eq_mod ~> minus_div_mult_eq_mod
haftmann@64242
   270
    minus_div_eq_mod2 ~> minus_mult_div_eq_mod
haftmann@64242
   271
    minus_mod_eq_div ~> minus_mod_eq_div_mult
haftmann@64242
   272
    minus_mod_eq_div2 ~> minus_mod_eq_mult_div
haftmann@64243
   273
    div_mod_equality' ~> minus_mod_eq_div_mult [symmetric]
haftmann@64243
   274
    mod_div_equality' ~> minus_div_mult_eq_mod [symmetric]
haftmann@64246
   275
    zmod_zdiv_equality ~> mult_div_mod_eq [symmetric]
haftmann@64246
   276
    zmod_zdiv_equality' ~> minus_div_mult_eq_mod [symmetric]
haftmann@64246
   277
    Divides.mult_div_cancel ~> minus_mod_eq_mult_div [symmetric]
haftmann@64246
   278
    mult_div_cancel ~> minus_mod_eq_mult_div [symmetric]
haftmann@64246
   279
    zmult_div_cancel ~> minus_mod_eq_mult_div [symmetric]
haftmann@64244
   280
    div_1 ~> div_by_Suc_0
haftmann@64244
   281
    mod_1 ~> mod_by_Suc_0
haftmann@64240
   282
INCOMPATIBILITY.
haftmann@64240
   283
nipkow@64323
   284
* Renamed constants "setsum" ~> "sum" and "setprod" ~> "prod".
nipkow@64323
   285
  Corresponding renaming of theorems.
nipkow@64323
   286
haftmann@64290
   287
* New type class "idom_abs_sgn" specifies algebraic properties
haftmann@64290
   288
of sign and absolute value functions.  Type class "sgn_if" has
haftmann@64290
   289
disappeared.  Slight INCOMPATIBILITY.
nipkow@64322
   290
haftmann@64113
   291
* Dedicated syntax LENGTH('a) for length of types.
haftmann@64113
   292
wenzelm@63977
   293
* New proof method "argo" using the built-in Argo solver based on SMT
wenzelm@63977
   294
technology. The method can be used to prove goals of quantifier-free
wenzelm@63977
   295
propositional logic, goals based on a combination of quantifier-free
wenzelm@63977
   296
propositional logic with equality, and goals based on a combination of
wenzelm@63977
   297
quantifier-free propositional logic with linear real arithmetic
wenzelm@63977
   298
including min/max/abs. See HOL/ex/Argo_Examples.thy for examples.
wenzelm@63977
   299
wenzelm@63977
   300
* Metis: The problem encoding has changed very slightly. This might
blanchet@63785
   301
break existing proofs. INCOMPATIBILITY.
blanchet@63785
   302
blanchet@63116
   303
* Sledgehammer:
lp15@63967
   304
  - The MaSh relevance filter is now faster than before.
blanchet@63116
   305
  - Produce syntactically correct Vampire 4.0 problem files.
blanchet@63116
   306
blanchet@62327
   307
* (Co)datatype package:
blanchet@62693
   308
  - New commands for defining corecursive functions and reasoning about
blanchet@62693
   309
    them in "~~/src/HOL/Library/BNF_Corec.thy": 'corec', 'corecursive',
blanchet@62693
   310
    'friend_of_corec', and 'corecursion_upto'; and 'corec_unique' proof
blanchet@62842
   311
    method. See 'isabelle doc corec'.
wenzelm@63977
   312
  - The predicator :: ('a \<Rightarrow> bool) \<Rightarrow> 'a F \<Rightarrow> bool is now a first-class
blanchet@63855
   313
    citizen in bounded natural functors.
blanchet@62693
   314
  - 'primrec' now allows nested calls through the predicator in addition
blanchet@62327
   315
    to the map function.
blanchet@63855
   316
  - 'bnf' automatically discharges reflexive proof obligations.
blanchet@62693
   317
  - 'bnf' outputs a slightly modified proof obligation expressing rel in
traytel@62332
   318
       terms of map and set
blanchet@63855
   319
       (not giving a specification for rel makes this one reflexive).
blanchet@62693
   320
  - 'bnf' outputs a new proof obligation expressing pred in terms of set
blanchet@63855
   321
       (not giving a specification for pred makes this one reflexive).
blanchet@63855
   322
    INCOMPATIBILITY: manual 'bnf' declarations may need adjustment.
blanchet@62335
   323
  - Renamed lemmas:
blanchet@62335
   324
      rel_prod_apply ~> rel_prod_inject
blanchet@62335
   325
      pred_prod_apply ~> pred_prod_inject
blanchet@62335
   326
    INCOMPATIBILITY.
blanchet@62536
   327
  - The "size" plugin has been made compatible again with locales.
blanchet@63855
   328
  - The theorems about "rel" and "set" may have a slightly different (but
blanchet@63855
   329
    equivalent) form.
blanchet@63855
   330
    INCOMPATIBILITY.
blanchet@62327
   331
wenzelm@63977
   332
* The 'coinductive' command produces a proper coinduction rule for
wenzelm@63977
   333
mutual coinductive predicates. This new rule replaces the old rule,
wenzelm@63977
   334
which exposed details of the internal fixpoint construction and was
wenzelm@63977
   335
hard to use. INCOMPATIBILITY.
wenzelm@63977
   336
wenzelm@63977
   337
* New abbreviations for negated existence (but not bounded existence):
wenzelm@63977
   338
wenzelm@63977
   339
  \<nexists>x. P x \<equiv> \<not> (\<exists>x. P x)
wenzelm@63977
   340
  \<nexists>!x. P x \<equiv> \<not> (\<exists>!x. P x)
wenzelm@63977
   341
wenzelm@63977
   342
* The print mode "HOL" for ASCII syntax of binders "!", "?", "?!", "@"
wenzelm@63977
   343
has been removed for output. It is retained for input only, until it is
wenzelm@63977
   344
eliminated altogether.
wenzelm@63977
   345
wenzelm@63977
   346
* The unique existence quantifier no longer provides 'binder' syntax,
wenzelm@63977
   347
but uses syntax translations (as for bounded unique existence). Thus
wenzelm@63977
   348
iterated quantification \<exists>!x y. P x y with its slightly confusing
wenzelm@63977
   349
sequential meaning \<exists>!x. \<exists>!y. P x y is no longer possible. Instead,
wenzelm@63977
   350
pattern abstraction admits simultaneous unique existence \<exists>!(x, y). P x y
wenzelm@63977
   351
(analogous to existing notation \<exists>!(x, y)\<in>A. P x y). Potential
wenzelm@63977
   352
INCOMPATIBILITY in rare situations.
wenzelm@63977
   353
wenzelm@63977
   354
* Conventional syntax "%(). t" for unit abstractions. Slight syntactic
wenzelm@63977
   355
INCOMPATIBILITY.
wenzelm@63977
   356
wenzelm@63977
   357
* Characters (type char) are modelled as finite algebraic type
wenzelm@63977
   358
corresponding to {0..255}.
wenzelm@63977
   359
wenzelm@63977
   360
  - Logical representation:
wenzelm@63977
   361
    * 0 is instantiated to the ASCII zero character.
wenzelm@63977
   362
    * All other characters are represented as "Char n"
wenzelm@63977
   363
      with n being a raw numeral expression less than 256.
wenzelm@63977
   364
    * Expressions of the form "Char n" with n greater than 255
wenzelm@63977
   365
      are non-canonical.
wenzelm@63977
   366
  - Printing and parsing:
wenzelm@63977
   367
    * Printable characters are printed and parsed as "CHR ''\<dots>''"
wenzelm@63977
   368
      (as before).
wenzelm@63977
   369
    * The ASCII zero character is printed and parsed as "0".
wenzelm@63977
   370
    * All other canonical characters are printed as "CHR 0xXX"
wenzelm@63977
   371
      with XX being the hexadecimal character code.  "CHR n"
wenzelm@63977
   372
      is parsable for every numeral expression n.
wenzelm@63977
   373
    * Non-canonical characters have no special syntax and are
wenzelm@63977
   374
      printed as their logical representation.
wenzelm@63977
   375
  - Explicit conversions from and to the natural numbers are
wenzelm@63977
   376
    provided as char_of_nat, nat_of_char (as before).
wenzelm@63977
   377
  - The auxiliary nibble type has been discontinued.
wenzelm@63977
   378
wenzelm@63977
   379
INCOMPATIBILITY.
wenzelm@63977
   380
wenzelm@63977
   381
* Type class "div" with operation "mod" renamed to type class "modulo"
wenzelm@63977
   382
with operation "modulo", analogously to type class "divide". This
wenzelm@63977
   383
eliminates the need to qualify any of those names in the presence of
wenzelm@63977
   384
infix "mod" syntax. INCOMPATIBILITY.
wenzelm@63977
   385
wenzelm@63979
   386
* Statements and proofs of Knaster-Tarski fixpoint combinators lfp/gfp
wenzelm@63979
   387
have been clarified. The fixpoint properties are lfp_fixpoint, its
wenzelm@63979
   388
symmetric lfp_unfold (as before), and the duals for gfp. Auxiliary items
wenzelm@63979
   389
for the proof (lfp_lemma2 etc.) are no longer exported, but can be
wenzelm@63979
   390
easily recovered by composition with eq_refl. Minor INCOMPATIBILITY.
wenzelm@63979
   391
wenzelm@63977
   392
* Constant "surj" is a mere input abbreviation, to avoid hiding an
wenzelm@63977
   393
equation in term output. Minor INCOMPATIBILITY.
wenzelm@63977
   394
wenzelm@63977
   395
* Command 'code_reflect' accepts empty constructor lists for datatypes,
wenzelm@63977
   396
which renders those abstract effectively.
wenzelm@63977
   397
wenzelm@63977
   398
* Command 'export_code' checks given constants for abstraction
wenzelm@63977
   399
violations: a small guarantee that given constants specify a safe
wenzelm@63977
   400
interface for the generated code.
wenzelm@63977
   401
wenzelm@63977
   402
* Code generation for Scala: ambiguous implicts in class diagrams are
wenzelm@63977
   403
spelt out explicitly.
wenzelm@63977
   404
wenzelm@63977
   405
* Static evaluators (Code_Evaluation.static_* in Isabelle/ML) rely on
wenzelm@63977
   406
explicitly provided auxiliary definitions for required type class
wenzelm@63977
   407
dictionaries rather than half-working magic.  INCOMPATIBILITY, see
wenzelm@63977
   408
the tutorial on code generation for details.
wenzelm@63977
   409
wenzelm@63977
   410
* Theory Set_Interval.thy: substantial new theorems on indexed sums
wenzelm@63977
   411
and products.
wenzelm@63977
   412
wenzelm@63977
   413
* Theory List.thy: ranaming of listsum ~> sum_list, listprod ~>
wenzelm@63977
   414
prod_list, INCOMPATIBILITY.
wenzelm@63977
   415
wenzelm@63977
   416
* Locale bijection establishes convenient default simp rules such as
wenzelm@63977
   417
"inv f (f a) = a" for total bijections.
wenzelm@63977
   418
wenzelm@63977
   419
* Abstract locales semigroup, abel_semigroup, semilattice,
wenzelm@63977
   420
semilattice_neutr, ordering, ordering_top, semilattice_order,
wenzelm@63977
   421
semilattice_neutr_order, comm_monoid_set, semilattice_set,
wenzelm@63977
   422
semilattice_neutr_set, semilattice_order_set,
wenzelm@63977
   423
semilattice_order_neutr_set monoid_list, comm_monoid_list,
wenzelm@63977
   424
comm_monoid_list_set, comm_monoid_mset, comm_monoid_fun use boldified
wenzelm@63977
   425
syntax uniformly that does not clash with corresponding global syntax.
wenzelm@63977
   426
INCOMPATIBILITY.
wenzelm@63977
   427
wenzelm@63977
   428
* Former locale lifting_syntax is now a bundle, which is easier to
wenzelm@63977
   429
include in a local context or theorem statement, e.g. "context includes
wenzelm@63977
   430
lifting_syntax begin ... end". Minor INCOMPATIBILITY.
wenzelm@63977
   431
wenzelm@63807
   432
* Some old / obsolete theorems have been renamed / removed, potential
wenzelm@63807
   433
INCOMPATIBILITY.
wenzelm@63807
   434
wenzelm@63807
   435
  nat_less_cases  --  removed, use linorder_cases instead
wenzelm@63807
   436
  inv_image_comp  --  removed, use image_inv_f_f instead
wenzelm@63807
   437
  image_surj_f_inv_f  ~>  image_f_inv_f
wenzelm@63113
   438
Mathias@63456
   439
* Some theorems about groups and orders have been generalised from
Mathias@63456
   440
  groups to semi-groups that are also monoids:
Mathias@63456
   441
    le_add_same_cancel1
Mathias@63456
   442
    le_add_same_cancel2
Mathias@63456
   443
    less_add_same_cancel1
Mathias@63456
   444
    less_add_same_cancel2
Mathias@63456
   445
    add_le_same_cancel1
Mathias@63456
   446
    add_le_same_cancel2
Mathias@63456
   447
    add_less_same_cancel1
Mathias@63456
   448
    add_less_same_cancel2
Mathias@63456
   449
Mathias@63456
   450
* Some simplifications theorems about rings have been removed, since
Mathias@63456
   451
  superseeded by a more general version:
Mathias@63456
   452
    less_add_cancel_left_greater_zero ~> less_add_same_cancel1
Mathias@63456
   453
    less_add_cancel_right_greater_zero ~> less_add_same_cancel2
Mathias@63456
   454
    less_eq_add_cancel_left_greater_eq_zero ~> le_add_same_cancel1
Mathias@63456
   455
    less_eq_add_cancel_right_greater_eq_zero ~> le_add_same_cancel2
Mathias@63456
   456
    less_eq_add_cancel_left_less_eq_zero ~> add_le_same_cancel1
Mathias@63456
   457
    less_eq_add_cancel_right_less_eq_zero ~> add_le_same_cancel2
Mathias@63456
   458
    less_add_cancel_left_less_zero ~> add_less_same_cancel1
Mathias@63456
   459
    less_add_cancel_right_less_zero ~> add_less_same_cancel2
Mathias@63456
   460
INCOMPATIBILITY.
Mathias@63456
   461
wenzelm@62407
   462
* Renamed split_if -> if_split and split_if_asm -> if_split_asm to
wenzelm@62407
   463
resemble the f.split naming convention, INCOMPATIBILITY.
nipkow@62396
   464
wenzelm@63977
   465
* Added class topological_monoid.
wenzelm@63977
   466
wenzelm@63977
   467
* HOL-Library: theory FinFun bundles "finfun_syntax" and
wenzelm@63977
   468
"no_finfun_syntax" allow to control optional syntax in local contexts;
wenzelm@63977
   469
this supersedes former theory FinFun_Syntax. INCOMPATIBILITY, e.g. use
wenzelm@63977
   470
"unbundle finfun_syntax" to imitate import of
wenzelm@63977
   471
"~~/src/HOL/Library/FinFun_Syntax".
wenzelm@63977
   472
eberlm@64074
   473
* HOL-Library: theory Multiset_Permutations (executably) defines the set of
lp15@64122
   474
permutations of a given set or multiset, i.e. the set of all lists that
eberlm@64074
   475
contain every element of the carrier (multi-)set exactly once.
wenzelm@63977
   476
wenzelm@63977
   477
* HOL-Library: multiset membership is now expressed using set_mset
wenzelm@63977
   478
rather than count.
haftmann@62430
   479
haftmann@62430
   480
  - Expressions "count M a > 0" and similar simplify to membership
haftmann@62430
   481
    by default.
haftmann@62430
   482
haftmann@62430
   483
  - Converting between "count M a = 0" and non-membership happens using
haftmann@62430
   484
    equations count_eq_zero_iff and not_in_iff.
haftmann@62430
   485
haftmann@62430
   486
  - Rules count_inI and in_countE obtain facts of the form
haftmann@62430
   487
    "count M a = n" from membership.
haftmann@62430
   488
haftmann@62430
   489
  - Rules count_in_diffI and in_diff_countE obtain facts of the form
haftmann@62430
   490
    "count M a = n + count N a" from membership on difference sets.
haftmann@62430
   491
haftmann@62430
   492
INCOMPATIBILITY.
haftmann@62430
   493
wenzelm@63977
   494
* HOL-Library: theory LaTeXsugar uses new-style "dummy_pats" for
wenzelm@63977
   495
displaying equations in functional programming style --- variables
wenzelm@63977
   496
present on the left-hand but not on the righ-hand side are replaced by
wenzelm@63977
   497
underscores.
wenzelm@63977
   498
wenzelm@63977
   499
* HOL-Library: theory Combinator_PER provides combinator to build
wenzelm@63977
   500
partial equivalence relations from a predicate and an equivalence
wenzelm@63977
   501
relation.
wenzelm@63977
   502
wenzelm@63977
   503
* HOL-Library: theory Perm provides basic facts about almost everywhere
wenzelm@63977
   504
fix bijections.
wenzelm@63977
   505
wenzelm@63977
   506
* HOL-Library: theory Normalized_Fraction allows viewing an element of a
wenzelm@63977
   507
field of fractions as a normalized fraction (i.e. a pair of numerator
wenzelm@63977
   508
and denominator such that the two are coprime and the denominator is
wenzelm@63977
   509
normalized wrt. unit factors).
wenzelm@63977
   510
wenzelm@63977
   511
* Session HOL-NSA has been renamed to HOL-Nonstandard_Analysis.
wenzelm@63977
   512
wenzelm@63977
   513
* Session HOL-Multivariate_Analysis has been renamed to HOL-Analysis.
wenzelm@63977
   514
wenzelm@63977
   515
* HOL-Analysis: measure theory has been moved here from HOL-Probability.
wenzelm@63977
   516
When importing HOL-Analysis some theorems need additional name spaces
wenzelm@63977
   517
prefixes due to name clashes. INCOMPATIBILITY.
wenzelm@63977
   518
wenzelm@63977
   519
* HOL-Analysis: more complex analysis including Cauchy's inequality,
wenzelm@63977
   520
Liouville theorem, open mapping theorem, maximum modulus principle,
wenzelm@63977
   521
Residue theorem, Schwarz Lemma.
wenzelm@63977
   522
wenzelm@63977
   523
* HOL-Analysis: Theory of polyhedra: faces, extreme points, polytopes,
wenzelm@63977
   524
and the Krein–Milman Minkowski theorem.
wenzelm@63977
   525
wenzelm@63977
   526
* HOL-Analysis: Numerous results ported from the HOL Light libraries:
lp15@64122
   527
homeomorphisms, continuous function extensions, invariance of domain.
wenzelm@63977
   528
wenzelm@63977
   529
* HOL-Probability: the type of emeasure and nn_integral was changed from
wenzelm@63977
   530
ereal to ennreal, INCOMPATIBILITY.
wenzelm@63977
   531
wenzelm@63977
   532
  emeasure :: 'a measure \<Rightarrow> 'a set \<Rightarrow> ennreal
wenzelm@63977
   533
  nn_integral :: 'a measure \<Rightarrow> ('a \<Rightarrow> ennreal) \<Rightarrow> ennreal
wenzelm@63977
   534
wenzelm@63977
   535
* HOL-Probability: Code generation and QuickCheck for Probability Mass
wenzelm@63977
   536
Functions.
wenzelm@63977
   537
wenzelm@63977
   538
* HOL-Probability: theory Random_Permutations contains some theory about
wenzelm@63977
   539
choosing a permutation of a set uniformly at random and folding over a
wenzelm@63977
   540
list in random order.
wenzelm@63977
   541
wenzelm@63977
   542
* HOL-Probability: theory SPMF formalises discrete subprobability
wenzelm@63977
   543
distributions.
wenzelm@63977
   544
wenzelm@63977
   545
* HOL-Number_Theory: algebraic foundation for primes: Generalisation of
wenzelm@63977
   546
predicate "prime" and introduction of predicates "prime_elem",
wenzelm@63977
   547
"irreducible", a "prime_factorization" function, and the
wenzelm@63977
   548
"factorial_ring" typeclass with instance proofs for nat, int, poly. Some
wenzelm@63977
   549
theorems now have different names, most notably "prime_def" is now
wenzelm@63977
   550
"prime_nat_iff". INCOMPATIBILITY.
wenzelm@63977
   551
wenzelm@63977
   552
* HOL-Library: the names of multiset theorems have been normalised to
wenzelm@63977
   553
distinguish which ordering the theorems are about
wenzelm@63977
   554
Mathias@63310
   555
    mset_less_eqI ~> mset_subset_eqI
Mathias@63310
   556
    mset_less_insertD ~> mset_subset_insertD
Mathias@63310
   557
    mset_less_eq_count ~> mset_subset_eq_count
Mathias@63310
   558
    mset_less_diff_self ~> mset_subset_diff_self
Mathias@63310
   559
    mset_le_exists_conv ~> mset_subset_eq_exists_conv
Mathias@63310
   560
    mset_le_mono_add_right_cancel ~> mset_subset_eq_mono_add_right_cancel
Mathias@63310
   561
    mset_le_mono_add_left_cancel ~> mset_subset_eq_mono_add_left_cancel
Mathias@63310
   562
    mset_le_mono_add ~> mset_subset_eq_mono_add
Mathias@63310
   563
    mset_le_add_left ~> mset_subset_eq_add_left
Mathias@63310
   564
    mset_le_add_right ~> mset_subset_eq_add_right
Mathias@63310
   565
    mset_le_single ~> mset_subset_eq_single
Mathias@63310
   566
    mset_le_multiset_union_diff_commute ~> mset_subset_eq_multiset_union_diff_commute
Mathias@63310
   567
    diff_le_self ~> diff_subset_eq_self
Mathias@63310
   568
    mset_leD ~> mset_subset_eqD
Mathias@63310
   569
    mset_lessD ~> mset_subsetD
Mathias@63310
   570
    mset_le_insertD ~> mset_subset_eq_insertD
Mathias@63310
   571
    mset_less_of_empty ~> mset_subset_of_empty
Mathias@63310
   572
    mset_less_size ~> mset_subset_size
Mathias@63310
   573
    wf_less_mset_rel ~> wf_subset_mset_rel
Mathias@63310
   574
    count_le_replicate_mset_le ~> count_le_replicate_mset_subset_eq
Mathias@63310
   575
    mset_remdups_le ~> mset_remdups_subset_eq
Mathias@63310
   576
    ms_lesseq_impl ~> subset_eq_mset_impl
Mathias@63310
   577
wenzelm@63977
   578
Some functions have been renamed:
Mathias@63310
   579
    ms_lesseq_impl -> subset_eq_mset_impl
Mathias@63310
   580
wenzelm@63977
   581
* HOL-Library: multisets are now ordered with the multiset ordering
Mathias@63388
   582
    #\<subseteq># ~> \<le>
Mathias@63388
   583
    #\<subset># ~> <
Mathias@63388
   584
    le_multiset ~> less_eq_multiset
Mathias@63388
   585
    less_multiset ~> le_multiset
blanchet@63407
   586
INCOMPATIBILITY.
Mathias@63388
   587
wenzelm@63977
   588
* HOL-Library: the prefix multiset_order has been discontinued: the
wenzelm@63977
   589
theorems can be directly accessed. As a consequence, the lemmas
wenzelm@63977
   590
"order_multiset" and "linorder_multiset" have been discontinued, and the
wenzelm@63977
   591
interpretations "multiset_linorder" and "multiset_wellorder" have been
wenzelm@63977
   592
replaced by instantiations. INCOMPATIBILITY.
wenzelm@63977
   593
wenzelm@63977
   594
* HOL-Library: some theorems about the multiset ordering have been
wenzelm@63977
   595
renamed:
wenzelm@63977
   596
Mathias@63388
   597
    le_multiset_def ~> less_eq_multiset_def
Mathias@63388
   598
    less_multiset_def ~> le_multiset_def
Mathias@63388
   599
    less_eq_imp_le_multiset ~> subset_eq_imp_le_multiset
Mathias@63388
   600
    mult_less_not_refl ~> mset_le_not_refl
Mathias@63388
   601
    mult_less_trans ~> mset_le_trans
Mathias@63388
   602
    mult_less_not_sym ~> mset_le_not_sym
Mathias@63388
   603
    mult_less_asym ~> mset_le_asym
Mathias@63388
   604
    mult_less_irrefl ~> mset_le_irrefl
Mathias@63388
   605
    union_less_mono2{,1,2} ~> union_le_mono2{,1,2}
Mathias@63388
   606
Mathias@63388
   607
    le_multiset\<^sub>H\<^sub>O ~> less_eq_multiset\<^sub>H\<^sub>O
Mathias@63388
   608
    le_multiset_total ~> less_eq_multiset_total
Mathias@63388
   609
    less_multiset_right_total ~> subset_eq_imp_le_multiset
Mathias@63388
   610
    le_multiset_empty_left ~> less_eq_multiset_empty_left
Mathias@63388
   611
    le_multiset_empty_right ~> less_eq_multiset_empty_right
Mathias@63388
   612
    less_multiset_empty_right ~> le_multiset_empty_left
Mathias@63388
   613
    less_multiset_empty_left ~> le_multiset_empty_right
Mathias@63388
   614
    union_less_diff_plus ~> union_le_diff_plus
Mathias@63388
   615
    ex_gt_count_imp_less_multiset ~> ex_gt_count_imp_le_multiset
Mathias@63388
   616
    less_multiset_plus_left_nonempty ~> le_multiset_plus_left_nonempty
Mathias@63388
   617
    le_multiset_plus_right_nonempty ~> le_multiset_plus_right_nonempty
blanchet@63407
   618
INCOMPATIBILITY.
Mathias@63388
   619
wenzelm@63977
   620
* HOL-Library: the lemma mset_map has now the attribute [simp].
wenzelm@63977
   621
INCOMPATIBILITY.
wenzelm@63977
   622
wenzelm@63977
   623
* HOL-Library: some theorems about multisets have been removed.
wenzelm@63977
   624
INCOMPATIBILITY, use the following replacements:
wenzelm@63977
   625
Mathias@63525
   626
    le_multiset_plus_plus_left_iff ~> add_less_cancel_right
Mathias@64097
   627
    less_multiset_plus_plus_left_iff ~> add_less_cancel_right
Mathias@63525
   628
    le_multiset_plus_plus_right_iff ~> add_less_cancel_left
Mathias@64097
   629
    less_multiset_plus_plus_right_iff ~> add_less_cancel_left
Mathias@63525
   630
    add_eq_self_empty_iff ~> add_cancel_left_right
Mathias@63793
   631
    mset_subset_add_bothsides ~> subset_mset.add_less_cancel_right
Mathias@64097
   632
    mset_less_add_bothsides ~> subset_mset.add_less_cancel_right
Mathias@64097
   633
    mset_le_add_bothsides ~> subset_mset.add_less_cancel_right
Mathias@64076
   634
    empty_inter ~> subset_mset.inf_bot_left
Mathias@64076
   635
    inter_empty ~> subset_mset.inf_bot_right
Mathias@64076
   636
    empty_sup ~> subset_mset.sup_bot_left
Mathias@64076
   637
    sup_empty ~> subset_mset.sup_bot_right
Mathias@64076
   638
    bdd_below_multiset ~> subset_mset.bdd_above_bot
Mathias@64076
   639
    subset_eq_empty ~> subset_mset.le_zero_eq
Mathias@64097
   640
    le_empty ~> subset_mset.le_zero_eq
Mathias@64076
   641
    mset_subset_empty_nonempty ~> subset_mset.zero_less_iff_neq_zero
Mathias@64097
   642
    mset_less_empty_nonempty ~> subset_mset.zero_less_iff_neq_zero
wenzelm@63977
   643
wenzelm@63977
   644
* HOL-Library: some typeclass constraints about multisets have been
wenzelm@63977
   645
reduced from ordered or linordered to preorder. Multisets have the
wenzelm@63977
   646
additional typeclasses order_bot, no_top,
wenzelm@63977
   647
ordered_ab_semigroup_add_imp_le, ordered_cancel_comm_monoid_add,
wenzelm@63977
   648
linordered_cancel_ab_semigroup_add, and
wenzelm@63977
   649
ordered_ab_semigroup_monoid_add_imp_le. INCOMPATIBILITY.
wenzelm@63977
   650
wenzelm@63977
   651
* HOL-Library: there are some new simplification rules about multisets,
wenzelm@63977
   652
the multiset ordering, and the subset ordering on multisets.
wenzelm@63977
   653
INCOMPATIBILITY.
wenzelm@63977
   654
wenzelm@63977
   655
* HOL-Library: the subset ordering on multisets has now the
wenzelm@63977
   656
interpretations ordered_ab_semigroup_monoid_add_imp_le and
wenzelm@63977
   657
bounded_lattice_bot. INCOMPATIBILITY.
wenzelm@63977
   658
wenzelm@63977
   659
* HOL-Library/Multiset: single has been removed in favor of add_mset
wenzelm@63977
   660
that roughly corresponds to Set.insert. Some theorems have removed or
wenzelm@63977
   661
changed:
wenzelm@63977
   662
Mathias@63793
   663
  single_not_empty ~> add_mset_not_empty or empty_not_add_mset
Mathias@63793
   664
  fold_mset_insert ~> fold_mset_add_mset
Mathias@63793
   665
  image_mset_insert ~> image_mset_add_mset
Mathias@63793
   666
  union_single_eq_diff
Mathias@63793
   667
  multi_self_add_other_not_self
Mathias@63793
   668
  diff_single_eq_union
Mathias@63793
   669
INCOMPATIBILITY.
Mathias@63793
   670
wenzelm@63977
   671
* HOL-Library/Multiset: some theorems have been changed to use add_mset
wenzelm@63977
   672
instead of single:
wenzelm@63977
   673
Mathias@63793
   674
  mset_add
Mathias@63793
   675
  multi_self_add_other_not_self
Mathias@63793
   676
  diff_single_eq_union
Mathias@63793
   677
  union_single_eq_diff
Mathias@63793
   678
  union_single_eq_member
Mathias@63793
   679
  add_eq_conv_diff
Mathias@63793
   680
  insert_noteq_member
Mathias@63793
   681
  add_eq_conv_ex
Mathias@63793
   682
  multi_member_split
Mathias@63793
   683
  multiset_add_sub_el_shuffle
Mathias@63793
   684
  mset_subset_eq_insertD
Mathias@63793
   685
  mset_subset_insertD
Mathias@63793
   686
  insert_subset_eq_iff
Mathias@63793
   687
  insert_union_subset_iff
Mathias@63793
   688
  multi_psub_of_add_self
Mathias@63793
   689
  inter_add_left1
Mathias@63793
   690
  inter_add_left2
Mathias@63793
   691
  inter_add_right1
Mathias@63793
   692
  inter_add_right2
Mathias@63793
   693
  sup_union_left1
Mathias@63793
   694
  sup_union_left2
Mathias@63793
   695
  sup_union_right1
Mathias@63793
   696
  sup_union_right2
Mathias@63793
   697
  size_eq_Suc_imp_eq_union
Mathias@63793
   698
  multi_nonempty_split
Mathias@63793
   699
  mset_insort
Mathias@63793
   700
  mset_update
Mathias@63793
   701
  mult1I
Mathias@63793
   702
  less_add
Mathias@63793
   703
  mset_zip_take_Cons_drop_twice
Mathias@63793
   704
  rel_mset_Zero
Mathias@63793
   705
  msed_map_invL
Mathias@63793
   706
  msed_map_invR
Mathias@63793
   707
  msed_rel_invL
Mathias@63793
   708
  msed_rel_invR
Mathias@63793
   709
  le_multiset_right_total
Mathias@63793
   710
  multiset_induct
Mathias@63793
   711
  multiset_induct2_size
Mathias@63793
   712
  multiset_induct2
Mathias@63793
   713
INCOMPATIBILITY.
Mathias@63793
   714
wenzelm@63977
   715
* HOL-Library/Multiset. The definitions of some constants have changed
wenzelm@63977
   716
to use add_mset instead of adding a single element:
Mathias@63793
   717
  image_mset
Mathias@63793
   718
  mset
Mathias@63793
   719
  replicate_mset
Mathias@63793
   720
  mult1
Mathias@63793
   721
  pred_mset
Mathias@63793
   722
  rel_mset'
Mathias@63793
   723
  mset_insort
Mathias@63793
   724
INCOMPATIBILITY.
Mathias@63793
   725
wenzelm@63977
   726
* HOL-Library/Multiset. Due to the above changes, the attributes of some
wenzelm@63977
   727
multiset theorems have been changed:
Mathias@63793
   728
  insert_DiffM  [] ~> [simp]
Mathias@63793
   729
  insert_DiffM2 [simp] ~> []
Mathias@63793
   730
  diff_add_mset_swap [simp]
Mathias@63793
   731
  fold_mset_add_mset [simp]
Mathias@63793
   732
  diff_diff_add [simp] (for multisets only)
Mathias@63793
   733
  diff_cancel [simp] ~> []
Mathias@63793
   734
  count_single [simp] ~> []
Mathias@63793
   735
  set_mset_single [simp] ~> []
Mathias@63793
   736
  size_multiset_single [simp] ~> []
Mathias@63793
   737
  size_single [simp] ~> []
Mathias@63793
   738
  image_mset_single [simp] ~> []
Mathias@63793
   739
  mset_subset_eq_mono_add_right_cancel [simp] ~> []
Mathias@63793
   740
  mset_subset_eq_mono_add_left_cancel [simp] ~> []
Mathias@63793
   741
  fold_mset_single [simp] ~> []
Mathias@63793
   742
  subset_eq_empty [simp] ~> []
Mathias@63795
   743
  empty_sup [simp] ~> []
Mathias@63795
   744
  sup_empty [simp] ~> []
Mathias@63795
   745
  inter_empty [simp] ~> []
Mathias@63795
   746
  empty_inter [simp] ~> []
Mathias@63793
   747
INCOMPATIBILITY.
Mathias@63793
   748
wenzelm@63977
   749
* HOL-Library/Multiset. The order of the variables in the second cases
wenzelm@63977
   750
of multiset_induct, multiset_induct2_size, multiset_induct2 has been
wenzelm@63977
   751
changed (e.g. Add A a ~> Add a A). INCOMPATIBILITY.
wenzelm@63977
   752
wenzelm@63977
   753
* HOL-Library/Multiset. There is now a simplification procedure on
wenzelm@63977
   754
multisets. It mimics the behavior of the procedure on natural numbers.
wenzelm@63977
   755
INCOMPATIBILITY.
wenzelm@63977
   756
wenzelm@63977
   757
* HOL-Library/Multiset. Renamed sums and products of multisets:
nipkow@63830
   758
  msetsum ~> sum_mset
nipkow@63830
   759
  msetprod ~> prod_mset
nipkow@63830
   760
wenzelm@63977
   761
* HOL-Library/Multiset. The notation for intersection and union of
wenzelm@63977
   762
multisets have been changed:
Mathias@63919
   763
  #\<inter> ~> \<inter>#
Mathias@63919
   764
  #\<union> ~> \<union>#
Mathias@63919
   765
INCOMPATIBILITY.
Mathias@63919
   766
wenzelm@63977
   767
* HOL-Library/Multiset. The lemma one_step_implies_mult_aux on multisets
wenzelm@63977
   768
has been removed, use one_step_implies_mult instead. INCOMPATIBILITY.
Mathias@63795
   769
Mathias@63918
   770
* The following theorems have been renamed:
Mathias@63918
   771
  setsum_left_distrib ~> setsum_distrib_right
Mathias@63918
   772
  setsum_right_distrib ~> setsum_distrib_left
Mathias@63918
   773
INCOMPATIBILITY.
Mathias@63918
   774
haftmann@62343
   775
* Compound constants INFIMUM and SUPREMUM are mere abbreviations now.
haftmann@62343
   776
INCOMPATIBILITY.
haftmann@62343
   777
haftmann@62358
   778
* "Gcd (f ` A)" and "Lcm (f ` A)" are printed with optional
haftmann@62358
   779
comprehension-like syntax analogously to "Inf (f ` A)" and "Sup (f ` A)".
haftmann@62358
   780
haftmann@62345
   781
* Class semiring_Lcd merged into semiring_Gcd.  INCOMPATIBILITY.
haftmann@62345
   782
hoelzl@62376
   783
* The type class ordered_comm_monoid_add is now called
wenzelm@63977
   784
ordered_cancel_comm_monoid_add. A new type class ordered_comm_monoid_add
wenzelm@63977
   785
is introduced as the combination of ordered_ab_semigroup_add +
wenzelm@63977
   786
comm_monoid_add. INCOMPATIBILITY.
wenzelm@63977
   787
wenzelm@63977
   788
* Introduced the type classes canonically_ordered_comm_monoid_add and
wenzelm@63977
   789
dioid.
hoelzl@62376
   790
Mathias@63456
   791
* Introduced the type class ordered_ab_semigroup_monoid_add_imp_le. When
wenzelm@63977
   792
instantiating linordered_semiring_strict and ordered_ab_group_add, an
wenzelm@63977
   793
explicit instantiation of ordered_ab_semigroup_monoid_add_imp_le might
wenzelm@63977
   794
be required. INCOMPATIBILITY.
wenzelm@63977
   795
wenzelm@63977
   796
* HOL-Library: theory Complete_Partial_Order2 provides reasoning support
wenzelm@63977
   797
for monotonicity and continuity in chain-complete partial orders and
wenzelm@63977
   798
about admissibility conditions for fixpoint inductions.
wenzelm@63977
   799
wenzelm@63977
   800
* HOL-Library: theory Polynomial contains also derivation of polynomials
wenzelm@63977
   801
but not gcd/lcm on polynomials over fields. This has been moved to a
wenzelm@63977
   802
separate theory Library/Polynomial_GCD_euclidean.thy, to pave way for a
wenzelm@63977
   803
possible future different type class instantiation for polynomials over
wenzelm@63977
   804
factorial rings. INCOMPATIBILITY.
wenzelm@63977
   805
wenzelm@63977
   806
* HOL-Library: theory Sublist.thy provides function "prefixes" with the
wenzelm@63977
   807
following renaming
wenzelm@63977
   808
nipkow@63173
   809
  prefixeq -> prefix
nipkow@63173
   810
  prefix -> strict_prefix
nipkow@63173
   811
  suffixeq -> suffix
nipkow@63173
   812
  suffix -> strict_suffix
wenzelm@63977
   813
wenzelm@63977
   814
Added theory of longest common prefixes.
nipkow@63117
   815
haftmann@62348
   816
* Dropped various legacy fact bindings, whose replacements are often
haftmann@62348
   817
of a more general type also:
haftmann@62348
   818
  lcm_left_commute_nat ~> lcm.left_commute
haftmann@62348
   819
  lcm_left_commute_int ~> lcm.left_commute
haftmann@62348
   820
  gcd_left_commute_nat ~> gcd.left_commute
haftmann@62348
   821
  gcd_left_commute_int ~> gcd.left_commute
haftmann@62348
   822
  gcd_greatest_iff_nat ~> gcd_greatest_iff
haftmann@62348
   823
  gcd_greatest_iff_int ~> gcd_greatest_iff
haftmann@62348
   824
  coprime_dvd_mult_nat ~> coprime_dvd_mult
haftmann@62348
   825
  coprime_dvd_mult_int ~> coprime_dvd_mult
haftmann@62348
   826
  zpower_numeral_even ~> power_numeral_even
haftmann@62348
   827
  gcd_mult_cancel_nat ~> gcd_mult_cancel
haftmann@62348
   828
  gcd_mult_cancel_int ~> gcd_mult_cancel
haftmann@62348
   829
  div_gcd_coprime_nat ~> div_gcd_coprime
haftmann@62348
   830
  div_gcd_coprime_int ~> div_gcd_coprime
haftmann@62348
   831
  zpower_numeral_odd ~> power_numeral_odd
haftmann@62348
   832
  zero_less_int_conv ~> of_nat_0_less_iff
haftmann@62348
   833
  gcd_greatest_nat ~> gcd_greatest
haftmann@62348
   834
  gcd_greatest_int ~> gcd_greatest
haftmann@62348
   835
  coprime_mult_nat ~> coprime_mult
haftmann@62348
   836
  coprime_mult_int ~> coprime_mult
haftmann@62348
   837
  lcm_commute_nat ~> lcm.commute
haftmann@62348
   838
  lcm_commute_int ~> lcm.commute
haftmann@62348
   839
  int_less_0_conv ~> of_nat_less_0_iff
haftmann@62348
   840
  gcd_commute_nat ~> gcd.commute
haftmann@62348
   841
  gcd_commute_int ~> gcd.commute
haftmann@62348
   842
  Gcd_insert_nat ~> Gcd_insert
haftmann@62348
   843
  Gcd_insert_int ~> Gcd_insert
haftmann@62348
   844
  of_int_int_eq ~> of_int_of_nat_eq
haftmann@62348
   845
  lcm_least_nat ~> lcm_least
haftmann@62348
   846
  lcm_least_int ~> lcm_least
haftmann@62348
   847
  lcm_assoc_nat ~> lcm.assoc
haftmann@62348
   848
  lcm_assoc_int ~> lcm.assoc
haftmann@62348
   849
  int_le_0_conv ~> of_nat_le_0_iff
haftmann@62348
   850
  int_eq_0_conv ~> of_nat_eq_0_iff
haftmann@62348
   851
  Gcd_empty_nat ~> Gcd_empty
haftmann@62348
   852
  Gcd_empty_int ~> Gcd_empty
haftmann@62348
   853
  gcd_assoc_nat ~> gcd.assoc
haftmann@62348
   854
  gcd_assoc_int ~> gcd.assoc
haftmann@62348
   855
  zero_zle_int ~> of_nat_0_le_iff
haftmann@62348
   856
  lcm_dvd2_nat ~> dvd_lcm2
haftmann@62348
   857
  lcm_dvd2_int ~> dvd_lcm2
haftmann@62348
   858
  lcm_dvd1_nat ~> dvd_lcm1
haftmann@62348
   859
  lcm_dvd1_int ~> dvd_lcm1
haftmann@62348
   860
  gcd_zero_nat ~> gcd_eq_0_iff
haftmann@62348
   861
  gcd_zero_int ~> gcd_eq_0_iff
haftmann@62348
   862
  gcd_dvd2_nat ~> gcd_dvd2
haftmann@62348
   863
  gcd_dvd2_int ~> gcd_dvd2
haftmann@62348
   864
  gcd_dvd1_nat ~> gcd_dvd1
haftmann@62348
   865
  gcd_dvd1_int ~> gcd_dvd1
haftmann@62348
   866
  int_numeral ~> of_nat_numeral
haftmann@62348
   867
  lcm_ac_nat ~> ac_simps
haftmann@62348
   868
  lcm_ac_int ~> ac_simps
haftmann@62348
   869
  gcd_ac_nat ~> ac_simps
haftmann@62348
   870
  gcd_ac_int ~> ac_simps
haftmann@62348
   871
  abs_int_eq ~> abs_of_nat
haftmann@62348
   872
  zless_int ~> of_nat_less_iff
haftmann@62348
   873
  zdiff_int ~> of_nat_diff
haftmann@62348
   874
  zadd_int ~> of_nat_add
haftmann@62348
   875
  int_mult ~> of_nat_mult
haftmann@62348
   876
  int_Suc ~> of_nat_Suc
haftmann@62348
   877
  inj_int ~> inj_of_nat
haftmann@62348
   878
  int_1 ~> of_nat_1
haftmann@62348
   879
  int_0 ~> of_nat_0
haftmann@62353
   880
  Lcm_empty_nat ~> Lcm_empty
haftmann@62353
   881
  Lcm_empty_int ~> Lcm_empty
haftmann@62353
   882
  Lcm_insert_nat ~> Lcm_insert
haftmann@62353
   883
  Lcm_insert_int ~> Lcm_insert
haftmann@62353
   884
  comp_fun_idem_gcd_nat ~> comp_fun_idem_gcd
haftmann@62353
   885
  comp_fun_idem_gcd_int ~> comp_fun_idem_gcd
haftmann@62353
   886
  comp_fun_idem_lcm_nat ~> comp_fun_idem_lcm
haftmann@62353
   887
  comp_fun_idem_lcm_int ~> comp_fun_idem_lcm
haftmann@62353
   888
  Lcm_eq_0 ~> Lcm_eq_0_I
haftmann@62353
   889
  Lcm0_iff ~> Lcm_0_iff
haftmann@62353
   890
  Lcm_dvd_int ~> Lcm_least
haftmann@62353
   891
  divides_mult_nat ~> divides_mult
haftmann@62353
   892
  divides_mult_int ~> divides_mult
haftmann@62353
   893
  lcm_0_nat ~> lcm_0_right
haftmann@62353
   894
  lcm_0_int ~> lcm_0_right
haftmann@62353
   895
  lcm_0_left_nat ~> lcm_0_left
haftmann@62353
   896
  lcm_0_left_int ~> lcm_0_left
haftmann@62353
   897
  dvd_gcd_D1_nat ~> dvd_gcdD1
haftmann@62353
   898
  dvd_gcd_D1_int ~> dvd_gcdD1
haftmann@62353
   899
  dvd_gcd_D2_nat ~> dvd_gcdD2
haftmann@62353
   900
  dvd_gcd_D2_int ~> dvd_gcdD2
haftmann@62353
   901
  coprime_dvd_mult_iff_nat ~> coprime_dvd_mult_iff
haftmann@62353
   902
  coprime_dvd_mult_iff_int ~> coprime_dvd_mult_iff
haftmann@62348
   903
  realpow_minus_mult ~> power_minus_mult
haftmann@62348
   904
  realpow_Suc_le_self ~> power_Suc_le_self
haftmann@62353
   905
  dvd_Gcd, dvd_Gcd_nat, dvd_Gcd_int removed in favour of Gcd_greatest
haftmann@62347
   906
INCOMPATIBILITY.
haftmann@62347
   907
lp15@63967
   908
* Renamed HOL/Quotient_Examples/FSet.thy to
wenzelm@63977
   909
HOL/Quotient_Examples/Quotient_FSet.thy INCOMPATIBILITY.
wenzelm@63977
   910
wenzelm@63198
   911
wenzelm@62498
   912
*** ML ***
wenzelm@62498
   913
wenzelm@63669
   914
* ML antiquotation @{path} is superseded by @{file}, which ensures that
wenzelm@63669
   915
the argument is a plain file. Minor INCOMPATIBILITY.
wenzelm@63669
   916
wenzelm@63227
   917
* Integer.gcd and Integer.lcm use efficient operations from the Poly/ML
wenzelm@63228
   918
library (notably for big integers). Subtle change of semantics:
wenzelm@63228
   919
Integer.gcd and Integer.lcm both normalize the sign, results are never
wenzelm@63228
   920
negative. This coincides with the definitions in HOL/GCD.thy.
wenzelm@63228
   921
INCOMPATIBILITY.
wenzelm@63227
   922
wenzelm@63212
   923
* Structure Rat for rational numbers is now an integral part of
wenzelm@63215
   924
Isabelle/ML, with special notation @int/nat or @int for numerals (an
wenzelm@63215
   925
abbreviation for antiquotation @{Pure.rat argument}) and ML pretty
wenzelm@63212
   926
printing. Standard operations on type Rat.rat are provided via ad-hoc
wenzelm@63215
   927
overloading of + - * / < <= > >= ~ abs. INCOMPATIBILITY, need to
wenzelm@63212
   928
use + instead of +/ etc. Moreover, exception Rat.DIVZERO has been
wenzelm@63212
   929
superseded by General.Div.
wenzelm@63198
   930
wenzelm@62861
   931
* The ML function "ML" provides easy access to run-time compilation.
wenzelm@62861
   932
This is particularly useful for conditional compilation, without
wenzelm@62861
   933
requiring separate files.
wenzelm@62861
   934
wenzelm@62851
   935
* Low-level ML system structures (like PolyML and RunCall) are no longer
wenzelm@62886
   936
exposed to Isabelle/ML user-space. Potential INCOMPATIBILITY.
wenzelm@62851
   937
wenzelm@62662
   938
* Antiquotation @{make_string} is available during Pure bootstrap --
wenzelm@62662
   939
with approximative output quality.
wenzelm@62662
   940
wenzelm@62498
   941
* Option ML_exception_debugger controls detailed exception trace via the
wenzelm@62498
   942
Poly/ML debugger. Relevant ML modules need to be compiled beforehand
wenzelm@62498
   943
with ML_file_debug, or with ML_file and option ML_debugger enabled. Note
wenzelm@62498
   944
debugger information requires consirable time and space: main
wenzelm@62498
   945
Isabelle/HOL with full debugger support may need ML_system_64.
wenzelm@62498
   946
wenzelm@62514
   947
* Local_Theory.restore has been renamed to Local_Theory.reset to
wenzelm@62514
   948
emphasize its disruptive impact on the cumulative context, notably the
wenzelm@62514
   949
scope of 'private' or 'qualified' names. Note that Local_Theory.reset is
wenzelm@62514
   950
only appropriate when targets are managed, e.g. starting from a global
wenzelm@62514
   951
theory and returning to it. Regular definitional packages should use
wenzelm@62514
   952
balanced blocks of Local_Theory.open_target versus
wenzelm@62514
   953
Local_Theory.close_target instead. Rare INCOMPATIBILITY.
wenzelm@62514
   954
wenzelm@62519
   955
* Structure TimeLimit (originally from the SML/NJ library) has been
wenzelm@62519
   956
replaced by structure Timeout, with slightly different signature.
wenzelm@62519
   957
INCOMPATIBILITY.
wenzelm@62519
   958
wenzelm@62551
   959
* Discontinued cd and pwd operations, which are not well-defined in a
wenzelm@62551
   960
multi-threaded environment. Note that files are usually located
wenzelm@62551
   961
relatively to the master directory of a theory (see also
wenzelm@62551
   962
File.full_path). Potential INCOMPATIBILITY.
wenzelm@62551
   963
wenzelm@63352
   964
* Binding.empty_atts supersedes Thm.empty_binding and
wenzelm@63352
   965
Attrib.empty_binding. Minor INCOMPATIBILITY.
wenzelm@63352
   966
wenzelm@62498
   967
wenzelm@62354
   968
*** System ***
wenzelm@62354
   969
wenzelm@64280
   970
* Isabelle/Scala: the SSH module supports ssh and sftp connections, for
wenzelm@64280
   971
remote command-execution and file-system access. This resembles
wenzelm@64280
   972
operations from module File and Isabelle_System to some extent. Note
wenzelm@64280
   973
that Path specifications need to be resolved remotely via
wenzelm@64280
   974
ssh.remote_path instead of File.standard_path: the implicit process
wenzelm@64280
   975
environment is different, Isabelle settings are not available remotely.
wenzelm@64280
   976
wenzelm@64280
   977
* Isabelle/Scala: the Mercurial module supports repositories via the
wenzelm@64280
   978
regular hg command-line interface. The repositroy clone and working
wenzelm@64280
   979
directory may reside on a local or remote file-system (via ssh
wenzelm@64280
   980
connection).
wenzelm@64280
   981
wenzelm@62840
   982
* Many Isabelle tools that require a Java runtime system refer to the
wenzelm@62840
   983
settings ISABELLE_TOOL_JAVA_OPTIONS32 / ISABELLE_TOOL_JAVA_OPTIONS64,
wenzelm@62840
   984
depending on the underlying platform. The settings for "isabelle build"
wenzelm@62840
   985
ISABELLE_BUILD_JAVA_OPTIONS32 / ISABELLE_BUILD_JAVA_OPTIONS64 have been
wenzelm@62840
   986
discontinued. Potential INCOMPATIBILITY.
wenzelm@62840
   987
wenzelm@62591
   988
* The Isabelle system environment always ensures that the main
wenzelm@62591
   989
executables are found within the shell search $PATH: "isabelle" and
wenzelm@62591
   990
"isabelle_scala_script".
wenzelm@62591
   991
wenzelm@63226
   992
* Isabelle tools may consist of .scala files: the Scala compiler is
wenzelm@63226
   993
invoked on the spot. The source needs to define some object that extends
wenzelm@63226
   994
Isabelle_Tool.Body.
wenzelm@63226
   995
wenzelm@62591
   996
* The Isabelle ML process is now managed directly by Isabelle/Scala, and
wenzelm@62591
   997
shell scripts merely provide optional command-line access. In
wenzelm@62591
   998
particular:
wenzelm@62591
   999
wenzelm@62591
  1000
  . Scala module ML_Process to connect to the raw ML process,
wenzelm@62591
  1001
    with interaction via stdin/stdout/stderr or in batch mode;
wenzelm@62591
  1002
  . command-line tool "isabelle console" as interactive wrapper;
wenzelm@62591
  1003
  . command-line tool "isabelle process" as batch mode wrapper.
wenzelm@62588
  1004
wenzelm@62588
  1005
* The executable "isabelle_process" has been discontinued. Tools and
wenzelm@62588
  1006
prover front-ends should use ML_Process or Isabelle_Process in
wenzelm@62591
  1007
Isabelle/Scala. INCOMPATIBILITY.
wenzelm@62588
  1008
wenzelm@62588
  1009
* New command-line tool "isabelle process" supports ML evaluation of
wenzelm@62588
  1010
literal expressions (option -e) or files (option -f) in the context of a
wenzelm@62588
  1011
given heap image. Errors lead to premature exit of the ML process with
wenzelm@62588
  1012
return code 1.
wenzelm@62588
  1013
wenzelm@64274
  1014
* The system option "threads" (for the size of the Isabelle/ML thread
wenzelm@64274
  1015
farm) is also passed to the underlying ML runtime system as --gcthreads,
wenzelm@64274
  1016
unless there is already a default provided via ML_OPTIONS settings.
wenzelm@64274
  1017
wenzelm@62588
  1018
* Command-line tool "isabelle console" provides option -r to help to
wenzelm@62588
  1019
bootstrapping Isabelle/Pure interactively.
wenzelm@62588
  1020
wenzelm@62588
  1021
* Command-line tool "isabelle yxml" has been discontinued.
wenzelm@62588
  1022
INCOMPATIBILITY, use operations from the modules "XML" and "YXML" in
wenzelm@62588
  1023
Isabelle/ML or Isabelle/Scala.
wenzelm@62588
  1024
wenzelm@62549
  1025
* File.bash_string, File.bash_path etc. represent Isabelle/ML and
wenzelm@62549
  1026
Isabelle/Scala strings authentically within GNU bash. This is useful to
wenzelm@62549
  1027
produce robust shell scripts under program control, without worrying
wenzelm@62549
  1028
about spaces or special characters. Note that user output works via
wenzelm@62549
  1029
Path.print (ML) or Path.toString (Scala). INCOMPATIBILITY, the old (and
wenzelm@62549
  1030
less versatile) operations File.shell_quote, File.shell_path etc. have
wenzelm@62549
  1031
been discontinued.
wenzelm@62549
  1032
wenzelm@62591
  1033
* SML/NJ and old versions of Poly/ML are no longer supported.
wenzelm@62591
  1034
wenzelm@62642
  1035
* Poly/ML heaps now follow the hierarchy of sessions, and thus require
wenzelm@62642
  1036
much less disk space.
wenzelm@62642
  1037
wenzelm@63827
  1038
* System option "checkpoint" helps to fine-tune the global heap space
wenzelm@63827
  1039
management of isabelle build. This is relevant for big sessions that may
wenzelm@63827
  1040
exhaust the small 32-bit address space of the ML process (which is used
wenzelm@63827
  1041
by default).
wenzelm@63827
  1042
wenzelm@64308
  1043
* System option "profiling" specifies the mode for global ML profiling
wenzelm@64308
  1044
in "isabelle build". Possible values are "time", "allocations".
wenzelm@64308
  1045
wenzelm@63986
  1046
* System option "ML_process_policy" specifies an optional command prefix
wenzelm@63986
  1047
for the underlying ML process, e.g. to control CPU affinity on
wenzelm@63987
  1048
multiprocessor systems. The "isabelle jedit" tool allows to override the
wenzelm@63987
  1049
implicit default via option -p.
wenzelm@63986
  1050
wenzelm@63995
  1051
* The isabelle_java executable allows to run a Java process within the
wenzelm@63995
  1052
name space of Java and Scala components that are bundled with Isabelle,
wenzelm@63995
  1053
but without the Isabelle settings environment.
wenzelm@63995
  1054
wenzelm@64265
  1055
* The command-line tool "isabelle build" supports option -N for cyclic
wenzelm@64265
  1056
shuffling of NUMA CPU nodes. This may help performance tuning on Linux
wenzelm@64265
  1057
servers with separate CPU/memory modules.
wenzelm@64265
  1058
wenzelm@62354
  1059
wenzelm@62354
  1060
wenzelm@62031
  1061
New in Isabelle2016 (February 2016)
wenzelm@62016
  1062
-----------------------------------
wenzelm@60138
  1063
wenzelm@61337
  1064
*** General ***
wenzelm@61337
  1065
wenzelm@62168
  1066
* Eisbach is now based on Pure instead of HOL. Objects-logics may import
wenzelm@62168
  1067
either the theory ~~/src/HOL/Eisbach/Eisbach (for HOL etc.) or
wenzelm@62168
  1068
~~/src/HOL/Eisbach/Eisbach_Old_Appl_Syntax (for FOL, ZF etc.). Note that
wenzelm@62168
  1069
the HOL-Eisbach session located in ~~/src/HOL/Eisbach/ contains further
wenzelm@62168
  1070
examples that do require HOL.
wenzelm@62168
  1071
wenzelm@62157
  1072
* Better resource usage on all platforms (Linux, Windows, Mac OS X) for
wenzelm@62157
  1073
both Isabelle/ML and Isabelle/Scala.  Slightly reduced heap space usage.
wenzelm@62157
  1074
wenzelm@62017
  1075
* Former "xsymbols" syntax with Isabelle symbols is used by default,
wenzelm@62017
  1076
without any special print mode. Important ASCII replacement syntax
wenzelm@62017
  1077
remains available under print mode "ASCII", but less important syntax
wenzelm@62017
  1078
has been removed (see below).
wenzelm@62017
  1079
wenzelm@62109
  1080
* Support for more arrow symbols, with rendering in LaTeX and Isabelle
wenzelm@62109
  1081
fonts: \<Lleftarrow> \<Rrightarrow> \<longlongleftarrow> \<longlongrightarrow> \<longlonglongleftarrow> \<longlonglongrightarrow>.
wenzelm@62017
  1082
wenzelm@62108
  1083
* Special notation \<struct> for the first implicit 'structure' in the
wenzelm@62108
  1084
context has been discontinued. Rare INCOMPATIBILITY, use explicit
wenzelm@62108
  1085
structure name instead, notably in indexed notation with block-subscript
wenzelm@62108
  1086
(e.g. \<odot>\<^bsub>A\<^esub>).
wenzelm@62108
  1087
wenzelm@62108
  1088
* The glyph for \<diamond> in the IsabelleText font now corresponds better to its
wenzelm@62108
  1089
counterpart \<box> as quantifier-like symbol. A small diamond is available as
wenzelm@62108
  1090
\<diamondop>; the old symbol \<struct> loses this rendering and any special
wenzelm@62108
  1091
meaning.
wenzelm@62108
  1092
wenzelm@62017
  1093
* Syntax for formal comments "-- text" now also supports the symbolic
wenzelm@62017
  1094
form "\<comment> text". Command-line tool "isabelle update_cartouches -c" helps
wenzelm@62017
  1095
to update old sources.
wenzelm@62017
  1096
wenzelm@61337
  1097
* Toplevel theorem statements have been simplified as follows:
wenzelm@61337
  1098
wenzelm@61337
  1099
  theorems             ~>  lemmas
wenzelm@61337
  1100
  schematic_lemma      ~>  schematic_goal
wenzelm@61337
  1101
  schematic_theorem    ~>  schematic_goal
wenzelm@61337
  1102
  schematic_corollary  ~>  schematic_goal
wenzelm@61337
  1103
wenzelm@61337
  1104
Command-line tool "isabelle update_theorems" updates theory sources
wenzelm@61337
  1105
accordingly.
wenzelm@61337
  1106
wenzelm@61338
  1107
* Toplevel theorem statement 'proposition' is another alias for
wenzelm@61338
  1108
'theorem'.
wenzelm@61338
  1109
wenzelm@62169
  1110
* The old 'defs' command has been removed (legacy since Isabelle2014).
wenzelm@62169
  1111
INCOMPATIBILITY, use regular 'definition' instead. Overloaded and/or
wenzelm@62169
  1112
deferred definitions require a surrounding 'overloading' block.
wenzelm@62169
  1113
wenzelm@61337
  1114
wenzelm@60610
  1115
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@60610
  1116
wenzelm@60986
  1117
* IDE support for the source-level debugger of Poly/ML, to work with
wenzelm@62253
  1118
Isabelle/ML and official Standard ML. Option "ML_debugger" and commands
wenzelm@62253
  1119
'ML_file_debug', 'ML_file_no_debug', 'SML_file_debug',
wenzelm@62253
  1120
'SML_file_no_debug' control compilation of sources with or without
wenzelm@62253
  1121
debugging information. The Debugger panel allows to set breakpoints (via
wenzelm@62253
  1122
context menu), step through stopped threads, evaluate local ML
wenzelm@62253
  1123
expressions etc. At least one Debugger view needs to be active to have
wenzelm@62253
  1124
any effect on the running ML program.
wenzelm@60984
  1125
wenzelm@61803
  1126
* The State panel manages explicit proof state output, with dynamic
wenzelm@61803
  1127
auto-update according to cursor movement. Alternatively, the jEdit
wenzelm@61803
  1128
action "isabelle.update-state" (shortcut S+ENTER) triggers manual
wenzelm@61803
  1129
update.
wenzelm@61729
  1130
wenzelm@61729
  1131
* The Output panel no longer shows proof state output by default, to
wenzelm@61729
  1132
avoid GUI overcrowding. INCOMPATIBILITY, use the State panel instead or
wenzelm@61729
  1133
enable option "editor_output_state".
wenzelm@61215
  1134
wenzelm@61803
  1135
* The text overview column (status of errors, warnings etc.) is updated
wenzelm@61803
  1136
asynchronously, leading to much better editor reactivity. Moreover, the
wenzelm@61803
  1137
full document node content is taken into account. The width of the
wenzelm@61803
  1138
column is scaled according to the main text area font, for improved
wenzelm@61803
  1139
visibility.
wenzelm@61803
  1140
wenzelm@61803
  1141
* The main text area no longer changes its color hue in outdated
wenzelm@61803
  1142
situations. The text overview column takes over the role to indicate
wenzelm@61803
  1143
unfinished edits in the PIDE pipeline. This avoids flashing text display
wenzelm@61803
  1144
due to ad-hoc updates by auxiliary GUI components, such as the State
wenzelm@61803
  1145
panel.
wenzelm@61803
  1146
wenzelm@62254
  1147
* Slightly improved scheduling for urgent print tasks (e.g. command
wenzelm@62254
  1148
state output, interactive queries) wrt. long-running background tasks.
wenzelm@62017
  1149
wenzelm@62017
  1150
* Completion of symbols via prefix of \<name> or \<^name> or \name is
wenzelm@62017
  1151
always possible, independently of the language context. It is never
wenzelm@62017
  1152
implicit: a popup will show up unconditionally.
wenzelm@62017
  1153
wenzelm@62017
  1154
* Additional abbreviations for syntactic completion may be specified in
wenzelm@62017
  1155
$ISABELLE_HOME/etc/abbrevs and $ISABELLE_HOME_USER/etc/abbrevs, with
wenzelm@62017
  1156
support for simple templates using ASCII 007 (bell) as placeholder.
wenzelm@62017
  1157
wenzelm@62234
  1158
* Symbols \<oplus>, \<Oplus>, \<otimes>, \<Otimes>, \<odot>, \<Odot>, \<ominus>, \<oslash> no longer provide abbreviations for
wenzelm@62234
  1159
completion like "+o", "*o", ".o" etc. -- due to conflicts with other
wenzelm@62234
  1160
ASCII syntax. INCOMPATIBILITY, use plain backslash-completion or define
wenzelm@62234
  1161
suitable abbreviations in $ISABELLE_HOME_USER/etc/abbrevs.
wenzelm@62234
  1162
wenzelm@61483
  1163
* Action "isabelle-emph" (with keyboard shortcut C+e LEFT) controls
wenzelm@61483
  1164
emphasized text style; the effect is visible in document output, not in
wenzelm@61483
  1165
the editor.
wenzelm@61483
  1166
wenzelm@61483
  1167
* Action "isabelle-reset" now uses keyboard shortcut C+e BACK_SPACE,
wenzelm@61483
  1168
instead of former C+e LEFT.
wenzelm@61483
  1169
wenzelm@61512
  1170
* The command-line tool "isabelle jedit" and the isabelle.Main
wenzelm@62027
  1171
application wrapper treat the default $USER_HOME/Scratch.thy more
wenzelm@61512
  1172
uniformly, and allow the dummy file argument ":" to open an empty buffer
wenzelm@61512
  1173
instead.
wenzelm@61512
  1174
wenzelm@62017
  1175
* New command-line tool "isabelle jedit_client" allows to connect to an
wenzelm@62017
  1176
already running Isabelle/jEdit process. This achieves the effect of
wenzelm@62017
  1177
single-instance applications seen on common GUI desktops.
wenzelm@62017
  1178
wenzelm@61529
  1179
* The default look-and-feel for Linux is the traditional "Metal", which
wenzelm@61529
  1180
works better with GUI scaling for very high-resolution displays (e.g.
wenzelm@61529
  1181
4K). Moreover, it is generally more robust than "Nimbus".
wenzelm@61529
  1182
wenzelm@62163
  1183
* Update to jedit-5.3.0, with improved GUI scaling and support of
wenzelm@62163
  1184
high-resolution displays (e.g. 4K).
wenzelm@62163
  1185
wenzelm@62034
  1186
* The main Isabelle executable is managed as single-instance Desktop
wenzelm@62034
  1187
application uniformly on all platforms: Linux, Windows, Mac OS X.
wenzelm@62034
  1188
wenzelm@60610
  1189
wenzelm@61405
  1190
*** Document preparation ***
wenzelm@61405
  1191
wenzelm@62017
  1192
* Commands 'paragraph' and 'subparagraph' provide additional section
wenzelm@62017
  1193
headings. Thus there are 6 levels of standard headings, as in HTML.
wenzelm@62017
  1194
wenzelm@62017
  1195
* Command 'text_raw' has been clarified: input text is processed as in
wenzelm@62017
  1196
'text' (with antiquotations and control symbols). The key difference is
wenzelm@62017
  1197
the lack of the surrounding isabelle markup environment in output.
wenzelm@62017
  1198
wenzelm@62017
  1199
* Text is structured in paragraphs and nested lists, using notation that
wenzelm@62017
  1200
is similar to Markdown. The control symbols for list items are as
wenzelm@62017
  1201
follows:
wenzelm@62017
  1202
wenzelm@62017
  1203
  \<^item>  itemize
wenzelm@62017
  1204
  \<^enum>  enumerate
wenzelm@62017
  1205
  \<^descr>  description
wenzelm@62017
  1206
wenzelm@61491
  1207
* There is a new short form for antiquotations with a single argument
wenzelm@61491
  1208
that is a cartouche: \<^name>\<open>...\<close> is equivalent to @{name \<open>...\<close>} and
wenzelm@61595
  1209
\<open>...\<close> without control symbol is equivalent to @{cartouche \<open>...\<close>}.
wenzelm@61595
  1210
\<^name> without following cartouche is equivalent to @{name}. The
wenzelm@61501
  1211
standard Isabelle fonts provide glyphs to render important control
wenzelm@61501
  1212
symbols, e.g. "\<^verbatim>", "\<^emph>", "\<^bold>".
wenzelm@61491
  1213
wenzelm@61595
  1214
* Antiquotations @{noindent}, @{smallskip}, @{medskip}, @{bigskip} with
wenzelm@61595
  1215
corresponding control symbols \<^noindent>, \<^smallskip>, \<^medskip>, \<^bigskip> specify spacing formally, using
wenzelm@61595
  1216
standard LaTeX macros of the same names.
wenzelm@61595
  1217
wenzelm@61491
  1218
* Antiquotation @{cartouche} in Isabelle/Pure is the same as @{text}.
wenzelm@61491
  1219
Consequently, \<open>...\<close> without any decoration prints literal quasi-formal
wenzelm@61492
  1220
text. Command-line tool "isabelle update_cartouches -t" helps to update
wenzelm@61492
  1221
old sources, by approximative patching of the content of string and
wenzelm@61492
  1222
cartouche tokens seen in theory sources.
wenzelm@61491
  1223
wenzelm@61491
  1224
* The @{text} antiquotation now ignores the antiquotation option
wenzelm@61491
  1225
"source". The given text content is output unconditionally, without any
wenzelm@61491
  1226
surrounding quotes etc. Subtle INCOMPATIBILITY, put quotes into the
wenzelm@61494
  1227
argument where they are really intended, e.g. @{text \<open>"foo"\<close>}. Initial
wenzelm@61494
  1228
or terminal spaces are ignored.
wenzelm@61491
  1229
wenzelm@62017
  1230
* Antiquotations @{emph} and @{bold} output LaTeX source recursively,
wenzelm@62017
  1231
adding appropriate text style markup. These may be used in the short
wenzelm@62017
  1232
form \<^emph>\<open>...\<close> and \<^bold>\<open>...\<close>.
wenzelm@62017
  1233
wenzelm@62017
  1234
* Document antiquotation @{footnote} outputs LaTeX source recursively,
wenzelm@62017
  1235
marked as \footnote{}. This may be used in the short form \<^footnote>\<open>...\<close>.
wenzelm@62017
  1236
wenzelm@62017
  1237
* Antiquotation @{verbatim [display]} supports option "indent".
wenzelm@62017
  1238
wenzelm@62017
  1239
* Antiquotation @{theory_text} prints uninterpreted theory source text
wenzelm@62231
  1240
(Isar outer syntax with command keywords etc.). This may be used in the
wenzelm@62231
  1241
short form \<^theory_text>\<open>...\<close>. @{theory_text [display]} supports option "indent".
wenzelm@62017
  1242
wenzelm@62017
  1243
* Antiquotation @{doc ENTRY} provides a reference to the given
wenzelm@62017
  1244
documentation, with a hyperlink in the Prover IDE.
wenzelm@62017
  1245
wenzelm@62017
  1246
* Antiquotations @{command}, @{method}, @{attribute} print checked
wenzelm@62017
  1247
entities of the Isar language.
wenzelm@62017
  1248
wenzelm@61471
  1249
* HTML presentation uses the standard IsabelleText font and Unicode
wenzelm@61471
  1250
rendering of Isabelle symbols like Isabelle/Scala/jEdit.  The former
wenzelm@61488
  1251
print mode "HTML" loses its special meaning.
wenzelm@61471
  1252
wenzelm@61405
  1253
wenzelm@60406
  1254
*** Isar ***
wenzelm@60406
  1255
wenzelm@62205
  1256
* Local goals ('have', 'show', 'hence', 'thus') allow structured rule
wenzelm@62205
  1257
statements like fixes/assumes/shows in theorem specifications, but the
wenzelm@62205
  1258
notation is postfix with keywords 'if' (or 'when') and 'for'. For
wenzelm@60555
  1259
example:
wenzelm@60414
  1260
wenzelm@60414
  1261
  have result: "C x y"
wenzelm@60414
  1262
    if "A x" and "B y"
wenzelm@60414
  1263
    for x :: 'a and y :: 'a
wenzelm@60414
  1264
    <proof>
wenzelm@60414
  1265
wenzelm@60449
  1266
The local assumptions are bound to the name "that". The result is
wenzelm@60449
  1267
exported from context of the statement as usual. The above roughly
wenzelm@60414
  1268
corresponds to a raw proof block like this:
wenzelm@60414
  1269
wenzelm@60414
  1270
  {
wenzelm@60414
  1271
    fix x :: 'a and y :: 'a
wenzelm@60449
  1272
    assume that: "A x" "B y"
wenzelm@60414
  1273
    have "C x y" <proof>
wenzelm@60414
  1274
  }
wenzelm@60414
  1275
  note result = this
wenzelm@60406
  1276
wenzelm@60555
  1277
The keyword 'when' may be used instead of 'if', to indicate 'presume'
wenzelm@60555
  1278
instead of 'assume' above.
wenzelm@60555
  1279
wenzelm@61733
  1280
* Assumptions ('assume', 'presume') allow structured rule statements
wenzelm@61733
  1281
using 'if' and 'for', similar to 'have' etc. above. For example:
wenzelm@61658
  1282
wenzelm@61658
  1283
  assume result: "C x y"
wenzelm@61658
  1284
    if "A x" and "B y"
wenzelm@61658
  1285
    for x :: 'a and y :: 'a
wenzelm@61658
  1286
wenzelm@61658
  1287
This assumes "\<And>x y::'a. A x \<Longrightarrow> B y \<Longrightarrow> C x y" and produces a general
wenzelm@61658
  1288
result as usual: "A ?x \<Longrightarrow> B ?y \<Longrightarrow> C ?x ?y".
wenzelm@61658
  1289
wenzelm@61658
  1290
Vacuous quantification in assumptions is omitted, i.e. a for-context
wenzelm@61658
  1291
only effects propositions according to actual use of variables. For
wenzelm@61658
  1292
example:
wenzelm@61658
  1293
wenzelm@61658
  1294
  assume "A x" and "B y" for x and y
wenzelm@61658
  1295
wenzelm@61658
  1296
is equivalent to:
wenzelm@61658
  1297
wenzelm@61658
  1298
  assume "\<And>x. A x" and "\<And>y. B y"
wenzelm@61658
  1299
wenzelm@60595
  1300
* The meaning of 'show' with Pure rule statements has changed: premises
wenzelm@60595
  1301
are treated in the sense of 'assume', instead of 'presume'. This means,
wenzelm@62205
  1302
a goal like "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" can be solved completely as
wenzelm@62205
  1303
follows:
wenzelm@60595
  1304
wenzelm@60595
  1305
  show "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x"
wenzelm@60595
  1306
wenzelm@60595
  1307
or:
wenzelm@60595
  1308
wenzelm@60595
  1309
  show "C x" if "A x" "B x" for x
wenzelm@60595
  1310
wenzelm@60595
  1311
Rare INCOMPATIBILITY, the old behaviour may be recovered as follows:
wenzelm@60595
  1312
wenzelm@60595
  1313
  show "C x" when "A x" "B x" for x
wenzelm@60595
  1314
wenzelm@60459
  1315
* New command 'consider' states rules for generalized elimination and
wenzelm@60459
  1316
case splitting. This is like a toplevel statement "theorem obtains" used
wenzelm@60459
  1317
within a proof body; or like a multi-branch 'obtain' without activation
wenzelm@60459
  1318
of the local context elements yet.
wenzelm@60459
  1319
wenzelm@60455
  1320
* Proof method "cases" allows to specify the rule as first entry of
wenzelm@60455
  1321
chained facts.  This is particularly useful with 'consider':
wenzelm@60455
  1322
wenzelm@60455
  1323
  consider (a) A | (b) B | (c) C <proof>
wenzelm@60455
  1324
  then have something
wenzelm@60455
  1325
  proof cases
wenzelm@60455
  1326
    case a
wenzelm@60455
  1327
    then show ?thesis <proof>
wenzelm@60455
  1328
  next
wenzelm@60455
  1329
    case b
wenzelm@60455
  1330
    then show ?thesis <proof>
wenzelm@60455
  1331
  next
wenzelm@60455
  1332
    case c
wenzelm@60455
  1333
    then show ?thesis <proof>
wenzelm@60455
  1334
  qed
wenzelm@60455
  1335
wenzelm@60565
  1336
* Command 'case' allows fact name and attribute specification like this:
wenzelm@60565
  1337
wenzelm@60565
  1338
  case a: (c xs)
wenzelm@60565
  1339
  case a [attributes]: (c xs)
wenzelm@60565
  1340
wenzelm@60565
  1341
Facts that are introduced by invoking the case context are uniformly
wenzelm@60565
  1342
qualified by "a"; the same name is used for the cumulative fact. The old
wenzelm@60565
  1343
form "case (c xs) [attributes]" is no longer supported. Rare
wenzelm@60565
  1344
INCOMPATIBILITY, need to adapt uses of case facts in exotic situations,
wenzelm@60565
  1345
and always put attributes in front.
wenzelm@60565
  1346
wenzelm@60618
  1347
* The standard proof method of commands 'proof' and '..' is now called
wenzelm@60618
  1348
"standard" to make semantically clear what it is; the old name "default"
wenzelm@60618
  1349
is still available as legacy for some time. Documentation now explains
wenzelm@60618
  1350
'..' more accurately as "by standard" instead of "by rule".
wenzelm@60618
  1351
wenzelm@62017
  1352
* Nesting of Isar goal structure has been clarified: the context after
wenzelm@62017
  1353
the initial backwards refinement is retained for the whole proof, within
wenzelm@62017
  1354
all its context sections (as indicated via 'next'). This is e.g.
wenzelm@62017
  1355
relevant for 'using', 'including', 'supply':
wenzelm@62017
  1356
wenzelm@62017
  1357
  have "A \<and> A" if a: A for A
wenzelm@62017
  1358
    supply [simp] = a
wenzelm@62017
  1359
  proof
wenzelm@62017
  1360
    show A by simp
wenzelm@62017
  1361
  next
wenzelm@62017
  1362
    show A by simp
wenzelm@62017
  1363
  qed
wenzelm@62017
  1364
wenzelm@62017
  1365
* Command 'obtain' binds term abbreviations (via 'is' patterns) in the
wenzelm@62017
  1366
proof body as well, abstracted over relevant parameters.
wenzelm@62017
  1367
wenzelm@62017
  1368
* Improved type-inference for theorem statement 'obtains': separate
wenzelm@62017
  1369
parameter scope for of each clause.
wenzelm@62017
  1370
wenzelm@62017
  1371
* Term abbreviations via 'is' patterns also work for schematic
wenzelm@62017
  1372
statements: result is abstracted over unknowns.
wenzelm@62017
  1373
wenzelm@60631
  1374
* Command 'subgoal' allows to impose some structure on backward
wenzelm@60631
  1375
refinements, to avoid proof scripts degenerating into long of 'apply'
wenzelm@60631
  1376
sequences. Further explanations and examples are given in the isar-ref
wenzelm@60631
  1377
manual.
wenzelm@60631
  1378
wenzelm@62017
  1379
* Command 'supply' supports fact definitions during goal refinement
wenzelm@62017
  1380
('apply' scripts).
wenzelm@62017
  1381
wenzelm@61166
  1382
* Proof method "goal_cases" turns the current subgoals into cases within
wenzelm@61166
  1383
the context; the conclusion is bound to variable ?case in each case. For
wenzelm@61166
  1384
example:
wenzelm@60617
  1385
wenzelm@60617
  1386
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x"
wenzelm@60622
  1387
  and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z"
wenzelm@61166
  1388
proof goal_cases
wenzelm@60622
  1389
  case (1 x)
wenzelm@60622
  1390
  then show ?case using \<open>A x\<close> \<open>B x\<close> sorry
wenzelm@60622
  1391
next
wenzelm@60622
  1392
  case (2 y z)
wenzelm@60622
  1393
  then show ?case using \<open>U y\<close> \<open>V z\<close> sorry
wenzelm@60622
  1394
qed
wenzelm@60622
  1395
wenzelm@60622
  1396
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x"
wenzelm@60622
  1397
  and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z"
wenzelm@61166
  1398
proof goal_cases
wenzelm@60617
  1399
  case prems: 1
wenzelm@60617
  1400
  then show ?case using prems sorry
wenzelm@60617
  1401
next
wenzelm@60617
  1402
  case prems: 2
wenzelm@60617
  1403
  then show ?case using prems sorry
wenzelm@60617
  1404
qed
wenzelm@60578
  1405
wenzelm@60581
  1406
* The undocumented feature of implicit cases goal1, goal2, goal3, etc.
wenzelm@60617
  1407
is marked as legacy, and will be removed eventually. The proof method
wenzelm@60617
  1408
"goals" achieves a similar effect within regular Isar; often it can be
wenzelm@60617
  1409
done more adequately by other means (e.g. 'consider').
wenzelm@60581
  1410
wenzelm@62017
  1411
* The vacuous fact "TERM x" may be established "by fact" or as `TERM x`
wenzelm@62017
  1412
as well, not just "by this" or "." as before.
wenzelm@60551
  1413
wenzelm@60554
  1414
* Method "sleep" succeeds after a real-time delay (in seconds). This is
wenzelm@60554
  1415
occasionally useful for demonstration and testing purposes.
wenzelm@60554
  1416
wenzelm@60406
  1417
wenzelm@60331
  1418
*** Pure ***
wenzelm@60331
  1419
wenzelm@61606
  1420
* Qualifiers in locale expressions default to mandatory ('!') regardless
wenzelm@61606
  1421
of the command. Previously, for 'locale' and 'sublocale' the default was
wenzelm@61606
  1422
optional ('?'). The old synatx '!' has been discontinued.
wenzelm@61606
  1423
INCOMPATIBILITY, remove '!' and add '?' as required.
ballarin@61565
  1424
ballarin@61566
  1425
* Keyword 'rewrites' identifies rewrite morphisms in interpretation
wenzelm@62017
  1426
commands. Previously, the keyword was 'where'. INCOMPATIBILITY.
ballarin@61566
  1427
ballarin@61701
  1428
* More gentle suppression of syntax along locale morphisms while
wenzelm@62017
  1429
printing terms. Previously 'abbreviation' and 'notation' declarations
wenzelm@62017
  1430
would be suppressed for morphisms except term identity. Now
ballarin@61701
  1431
'abbreviation' is also kept for morphims that only change the involved
wenzelm@62017
  1432
parameters, and only 'notation' is suppressed. This can be of great help
wenzelm@62017
  1433
when working with complex locale hierarchies, because proof states are
wenzelm@62017
  1434
displayed much more succinctly. It also means that only notation needs
wenzelm@62017
  1435
to be redeclared if desired, as illustrated by this example:
ballarin@61701
  1436
ballarin@61701
  1437
  locale struct = fixes composition :: "'a => 'a => 'a" (infixl "\<cdot>" 65)
ballarin@61701
  1438
  begin
ballarin@61701
  1439
    definition derived (infixl "\<odot>" 65) where ...
ballarin@61701
  1440
  end
ballarin@61701
  1441
ballarin@61701
  1442
  locale morphism =
ballarin@61701
  1443
    left: struct composition + right: struct composition'
ballarin@61701
  1444
    for composition (infix "\<cdot>" 65) and composition' (infix "\<cdot>''" 65)
ballarin@61701
  1445
  begin
ballarin@61701
  1446
    notation right.derived ("\<odot>''")
ballarin@61701
  1447
  end
ballarin@61701
  1448
wenzelm@61895
  1449
* Command 'global_interpretation' issues interpretations into global
wenzelm@61895
  1450
theories, with optional rewrite definitions following keyword 'defines'.
wenzelm@61895
  1451
wenzelm@61895
  1452
* Command 'sublocale' accepts optional rewrite definitions after keyword
haftmann@61675
  1453
'defines'.
haftmann@61675
  1454
wenzelm@61895
  1455
* Command 'permanent_interpretation' has been discontinued. Use
wenzelm@61895
  1456
'global_interpretation' or 'sublocale' instead. INCOMPATIBILITY.
haftmann@61670
  1457
wenzelm@61252
  1458
* Command 'print_definitions' prints dependencies of definitional
wenzelm@61252
  1459
specifications. This functionality used to be part of 'print_theory'.
wenzelm@61252
  1460
wenzelm@60331
  1461
* Configuration option rule_insts_schematic has been discontinued
wenzelm@62017
  1462
(intermediate legacy feature in Isabelle2015). INCOMPATIBILITY.
wenzelm@60331
  1463
wenzelm@62205
  1464
* Abbreviations in type classes now carry proper sort constraint. Rare
wenzelm@62205
  1465
INCOMPATIBILITY in situations where the previous misbehaviour has been
wenzelm@62205
  1466
exploited.
haftmann@60347
  1467
haftmann@60347
  1468
* Refinement of user-space type system in type classes: pseudo-local
wenzelm@62205
  1469
operations behave more similar to abbreviations. Potential
haftmann@60347
  1470
INCOMPATIBILITY in exotic situations.
haftmann@60347
  1471
haftmann@60347
  1472
nipkow@60171
  1473
*** HOL ***
nipkow@60171
  1474
wenzelm@62017
  1475
* The 'typedef' command has been upgraded from a partially checked
wenzelm@62017
  1476
"axiomatization", to a full definitional specification that takes the
wenzelm@62017
  1477
global collection of overloaded constant / type definitions into
wenzelm@62017
  1478
account. Type definitions with open dependencies on overloaded
wenzelm@62017
  1479
definitions need to be specified as "typedef (overloaded)". This
wenzelm@62017
  1480
provides extra robustness in theory construction. Rare INCOMPATIBILITY.
wenzelm@62017
  1481
wenzelm@62017
  1482
* Qualification of various formal entities in the libraries is done more
wenzelm@62017
  1483
uniformly via "context begin qualified definition ... end" instead of
wenzelm@62017
  1484
old-style "hide_const (open) ...". Consequently, both the defined
wenzelm@62017
  1485
constant and its defining fact become qualified, e.g. Option.is_none and
wenzelm@62017
  1486
Option.is_none_def. Occasional INCOMPATIBILITY in applications.
wenzelm@62017
  1487
wenzelm@62017
  1488
* Some old and rarely used ASCII replacement syntax has been removed.
wenzelm@62017
  1489
INCOMPATIBILITY, standard syntax with symbols should be used instead.
wenzelm@62017
  1490
The subsequent commands help to reproduce the old forms, e.g. to
wenzelm@62017
  1491
simplify porting old theories:
wenzelm@62017
  1492
wenzelm@62017
  1493
  notation iff  (infixr "<->" 25)
wenzelm@62017
  1494
wenzelm@62017
  1495
  notation Times  (infixr "<*>" 80)
wenzelm@62017
  1496
wenzelm@62017
  1497
  type_notation Map.map  (infixr "~=>" 0)
wenzelm@62017
  1498
  notation Map.map_comp  (infixl "o'_m" 55)
wenzelm@62017
  1499
wenzelm@62017
  1500
  type_notation FinFun.finfun ("(_ =>f /_)" [22, 21] 21)
wenzelm@62017
  1501
wenzelm@62017
  1502
  notation FuncSet.funcset  (infixr "->" 60)
wenzelm@62017
  1503
  notation FuncSet.extensional_funcset  (infixr "->\<^sub>E" 60)
wenzelm@62017
  1504
wenzelm@62017
  1505
  notation Omega_Words_Fun.conc (infixr "conc" 65)
wenzelm@62017
  1506
wenzelm@62017
  1507
  notation Preorder.equiv ("op ~~")
wenzelm@62017
  1508
    and Preorder.equiv ("(_/ ~~ _)" [51, 51] 50)
wenzelm@62017
  1509
wenzelm@62017
  1510
  notation (in topological_space) tendsto (infixr "--->" 55)
wenzelm@62017
  1511
  notation (in topological_space) LIMSEQ ("((_)/ ----> (_))" [60, 60] 60)
wenzelm@62017
  1512
  notation LIM ("((_)/ -- (_)/ --> (_))" [60, 0, 60] 60)
wenzelm@62017
  1513
wenzelm@62017
  1514
  notation NSA.approx (infixl "@=" 50)
wenzelm@62017
  1515
  notation NSLIMSEQ ("((_)/ ----NS> (_))" [60, 60] 60)
wenzelm@62017
  1516
  notation NSLIM ("((_)/ -- (_)/ --NS> (_))" [60, 0, 60] 60)
wenzelm@62017
  1517
wenzelm@62017
  1518
* The alternative notation "\<Colon>" for type and sort constraints has been
wenzelm@62017
  1519
removed: in LaTeX document output it looks the same as "::".
wenzelm@62017
  1520
INCOMPATIBILITY, use plain "::" instead.
wenzelm@62017
  1521
wenzelm@62017
  1522
* Commands 'inductive' and 'inductive_set' work better when names for
wenzelm@62017
  1523
intro rules are omitted: the "cases" and "induct" rules no longer
wenzelm@62017
  1524
declare empty case_names, but no case_names at all. This allows to use
wenzelm@62017
  1525
numbered cases in proofs, without requiring method "goal_cases".
wenzelm@62017
  1526
wenzelm@62017
  1527
* Inductive definitions ('inductive', 'coinductive', etc.) expose
wenzelm@62017
  1528
low-level facts of the internal construction only if the option
wenzelm@62093
  1529
"inductive_internals" is enabled. This refers to the internal predicate
wenzelm@62017
  1530
definition and its monotonicity result. Rare INCOMPATIBILITY.
wenzelm@62017
  1531
wenzelm@62017
  1532
* Recursive function definitions ('fun', 'function', 'partial_function')
wenzelm@62017
  1533
expose low-level facts of the internal construction only if the option
wenzelm@62205
  1534
"function_internals" is enabled. Its internal inductive definition is
wenzelm@62205
  1535
also subject to "inductive_internals". Rare INCOMPATIBILITY.
wenzelm@62093
  1536
wenzelm@62093
  1537
* BNF datatypes ('datatype', 'codatatype', etc.) expose low-level facts
wenzelm@62093
  1538
of the internal construction only if the option "bnf_internals" is
wenzelm@62093
  1539
enabled. This supersedes the former option "bnf_note_all". Rare
wenzelm@62093
  1540
INCOMPATIBILITY.
wenzelm@62017
  1541
wenzelm@62017
  1542
* Combinator to represent case distinction on products is named
wenzelm@62017
  1543
"case_prod", uniformly, discontinuing any input aliasses. Very popular
wenzelm@62017
  1544
theorem aliasses have been retained.
wenzelm@62017
  1545
haftmann@61424
  1546
Consolidated facts:
haftmann@61424
  1547
  PairE ~> prod.exhaust
haftmann@61424
  1548
  Pair_eq ~> prod.inject
haftmann@61424
  1549
  pair_collapse ~> prod.collapse
haftmann@61424
  1550
  Pair_fst_snd_eq ~> prod_eq_iff
haftmann@61424
  1551
  split_twice ~> prod.case_distrib
haftmann@61424
  1552
  split_weak_cong ~> prod.case_cong_weak
haftmann@61424
  1553
  split_split ~> prod.split
haftmann@61424
  1554
  split_split_asm ~> prod.split_asm
haftmann@61424
  1555
  splitI ~> case_prodI
haftmann@61424
  1556
  splitD ~> case_prodD
haftmann@61424
  1557
  splitI2 ~> case_prodI2
haftmann@61424
  1558
  splitI2' ~> case_prodI2'
haftmann@61424
  1559
  splitE ~> case_prodE
haftmann@61424
  1560
  splitE' ~> case_prodE'
haftmann@61424
  1561
  split_pair ~> case_prod_Pair
haftmann@61424
  1562
  split_eta ~> case_prod_eta
haftmann@61424
  1563
  split_comp ~> case_prod_comp
haftmann@61424
  1564
  mem_splitI ~> mem_case_prodI
haftmann@61424
  1565
  mem_splitI2 ~> mem_case_prodI2
haftmann@61424
  1566
  mem_splitE ~> mem_case_prodE
haftmann@61424
  1567
  The_split ~> The_case_prod
haftmann@61424
  1568
  cond_split_eta ~> cond_case_prod_eta
haftmann@61424
  1569
  Collect_split_in_rel_leE ~> Collect_case_prod_in_rel_leE
haftmann@61424
  1570
  Collect_split_in_rel_leI ~> Collect_case_prod_in_rel_leI
haftmann@61424
  1571
  in_rel_Collect_split_eq ~> in_rel_Collect_case_prod_eq
haftmann@61424
  1572
  Collect_split_Grp_eqD ~> Collect_case_prod_Grp_eqD
haftmann@61424
  1573
  Collect_split_Grp_inD ~> Collect_case_prod_Grp_in
haftmann@61424
  1574
  Domain_Collect_split ~> Domain_Collect_case_prod
haftmann@61424
  1575
  Image_Collect_split ~> Image_Collect_case_prod
haftmann@61424
  1576
  Range_Collect_split ~> Range_Collect_case_prod
haftmann@61424
  1577
  Eps_split ~> Eps_case_prod
haftmann@61424
  1578
  Eps_split_eq ~> Eps_case_prod_eq
haftmann@61424
  1579
  split_rsp ~> case_prod_rsp
haftmann@61424
  1580
  curry_split ~> curry_case_prod
haftmann@61424
  1581
  split_curry ~> case_prod_curry
wenzelm@62017
  1582
haftmann@61424
  1583
Changes in structure HOLogic:
haftmann@61424
  1584
  split_const ~> case_prod_const
haftmann@61424
  1585
  mk_split ~> mk_case_prod
haftmann@61424
  1586
  mk_psplits ~> mk_ptupleabs
haftmann@61424
  1587
  strip_psplits ~> strip_ptupleabs
wenzelm@62017
  1588
wenzelm@62017
  1589
INCOMPATIBILITY.
wenzelm@62017
  1590
wenzelm@62017
  1591
* The coercions to type 'real' have been reorganised. The function
wenzelm@62017
  1592
'real' is no longer overloaded, but has type 'nat => real' and
wenzelm@62017
  1593
abbreviates of_nat for that type. Also 'real_of_int :: int => real'
wenzelm@62017
  1594
abbreviates of_int for that type. Other overloaded instances of 'real'
wenzelm@62017
  1595
have been replaced by 'real_of_ereal' and 'real_of_float'.
wenzelm@62017
  1596
lp15@61694
  1597
Consolidated facts (among others):
lp15@61694
  1598
  real_of_nat_le_iff -> of_nat_le_iff
lp15@61694
  1599
  real_of_nat_numeral of_nat_numeral
lp15@61694
  1600
  real_of_int_zero of_int_0
lp15@61694
  1601
  real_of_nat_zero of_nat_0
lp15@61694
  1602
  real_of_one of_int_1
lp15@61694
  1603
  real_of_int_add of_int_add
lp15@61694
  1604
  real_of_nat_add of_nat_add
lp15@61694
  1605
  real_of_int_diff of_int_diff
lp15@61694
  1606
  real_of_nat_diff of_nat_diff
lp15@61694
  1607
  floor_subtract floor_diff_of_int
lp15@61694
  1608
  real_of_int_inject of_int_eq_iff
lp15@61694
  1609
  real_of_int_gt_zero_cancel_iff of_int_0_less_iff
lp15@61694
  1610
  real_of_int_ge_zero_cancel_iff of_int_0_le_iff
lp15@61694
  1611
  real_of_nat_ge_zero of_nat_0_le_iff
lp15@61694
  1612
  real_of_int_ceiling_ge le_of_int_ceiling
lp15@61694
  1613
  ceiling_less_eq ceiling_less_iff
lp15@61694
  1614
  ceiling_le_eq ceiling_le_iff
lp15@61694
  1615
  less_floor_eq less_floor_iff
lp15@61694
  1616
  floor_less_eq floor_less_iff
lp15@61694
  1617
  floor_divide_eq_div floor_divide_of_int_eq
lp15@61694
  1618
  real_of_int_zero_cancel of_nat_eq_0_iff
lp15@61694
  1619
  ceiling_real_of_int ceiling_of_int
wenzelm@62017
  1620
wenzelm@62017
  1621
INCOMPATIBILITY.
wenzelm@61143
  1622
wenzelm@60841
  1623
* Theory Map: lemma map_of_is_SomeD was a clone of map_of_SomeD and has
wenzelm@60841
  1624
been removed. INCOMPATIBILITY.
wenzelm@60841
  1625
lars@60712
  1626
* Quickcheck setup for finite sets.
lars@60712
  1627
nipkow@60171
  1628
* Discontinued simp_legacy_precond. Potential INCOMPATIBILITY.
wenzelm@60138
  1629
blanchet@60306
  1630
* Sledgehammer:
blanchet@61318
  1631
  - The MaSh relevance filter has been sped up.
blanchet@60306
  1632
  - Proof reconstruction has been improved, to minimize the incidence of
blanchet@60306
  1633
    cases where Sledgehammer gives a proof that does not work.
blanchet@60306
  1634
  - Auto Sledgehammer now minimizes and preplays the results.
blanchet@61030
  1635
  - Handle Vampire 4.0 proof output without raising exception.
blanchet@61043
  1636
  - Eliminated "MASH" environment variable. Use the "MaSh" option in
blanchet@61043
  1637
    Isabelle/jEdit instead. INCOMPATIBILITY.
blanchet@61317
  1638
  - Eliminated obsolete "blocking" option and related subcommands.
blanchet@60306
  1639
blanchet@60310
  1640
* Nitpick:
blanchet@61325
  1641
  - Fixed soundness bug in translation of "finite" predicate.
blanchet@61324
  1642
  - Fixed soundness bug in "destroy_constrs" optimization.
blanchet@62080
  1643
  - Fixed soundness bug in translation of "rat" type.
blanchet@60310
  1644
  - Removed "check_potential" and "check_genuine" options.
blanchet@61317
  1645
  - Eliminated obsolete "blocking" option.
blanchet@60310
  1646
wenzelm@62027
  1647
* (Co)datatype package:
blanchet@61345
  1648
  - New commands "lift_bnf" and "copy_bnf" for lifting (copying) a BNF
blanchet@61345
  1649
    structure on the raw type to an abstract type defined using typedef.
blanchet@61345
  1650
  - Always generate "case_transfer" theorem.
wenzelm@62235
  1651
  - For mutual types, generate slightly stronger "rel_induct",
haftmann@63946
  1652
    "rel_coinduct", and "coinduct" theorems. INCOMPATIBILITY.
blanchet@61551
  1653
  - Allow discriminators and selectors with the same name as the type
blanchet@61551
  1654
    being defined.
blanchet@61551
  1655
  - Avoid various internal name clashes (e.g., 'datatype f = f').
traytel@60920
  1656
wenzelm@62098
  1657
* Transfer: new methods for interactive debugging of 'transfer' and
wenzelm@62098
  1658
'transfer_prover': 'transfer_start', 'transfer_step', 'transfer_end',
wenzelm@62098
  1659
'transfer_prover_start' and 'transfer_prover_end'.
kuncar@61370
  1660
kleing@62118
  1661
* New diagnostic command print_record for displaying record definitions.
kleing@62118
  1662
haftmann@60868
  1663
* Division on integers is bootstrapped directly from division on
wenzelm@62017
  1664
naturals and uses generic numeral algorithm for computations. Slight
wenzelm@62017
  1665
INCOMPATIBILITY, simproc numeral_divmod replaces and generalizes former
wenzelm@62017
  1666
simprocs binary_int_div and binary_int_mod
wenzelm@62017
  1667
wenzelm@62017
  1668
* Tightened specification of class semiring_no_zero_divisors. Minor
haftmann@60516
  1669
INCOMPATIBILITY.
haftmann@60516
  1670
haftmann@60688
  1671
* Class algebraic_semidom introduces common algebraic notions of
wenzelm@62017
  1672
integral (semi)domains, particularly units. Although logically subsumed
wenzelm@62017
  1673
by fields, is is not a super class of these in order not to burden
wenzelm@62017
  1674
fields with notions that are trivial there.
wenzelm@62017
  1675
wenzelm@62017
  1676
* Class normalization_semidom specifies canonical representants for
wenzelm@62017
  1677
equivalence classes of associated elements in an integral (semi)domain.
wenzelm@62017
  1678
This formalizes associated elements as well.
haftmann@60688
  1679
haftmann@60688
  1680
* Abstract specification of gcd/lcm operations in classes semiring_gcd,
wenzelm@62017
  1681
semiring_Gcd, semiring_Lcd. Minor INCOMPATIBILITY: facts gcd_nat.commute
wenzelm@62017
  1682
and gcd_int.commute are subsumed by gcd.commute, as well as
wenzelm@62017
  1683
gcd_nat.assoc and gcd_int.assoc by gcd.assoc.
wenzelm@62017
  1684
wenzelm@62017
  1685
* Former constants Fields.divide (_ / _) and Divides.div (_ div _) are
wenzelm@62017
  1686
logically unified to Rings.divide in syntactic type class Rings.divide,
wenzelm@62017
  1687
with infix syntax (_ div _). Infix syntax (_ / _) for field division is
wenzelm@62017
  1688
added later as abbreviation in class Fields.inverse. INCOMPATIBILITY,
wenzelm@62017
  1689
instantiations must refer to Rings.divide rather than the former
wenzelm@62017
  1690
separate constants, hence infix syntax (_ / _) is usually not available
wenzelm@62017
  1691
during instantiation.
wenzelm@62017
  1692
wenzelm@62017
  1693
* New cancellation simprocs for boolean algebras to cancel complementary
wenzelm@62017
  1694
terms for sup and inf. For example, "sup x (sup y (- x))" simplifies to
wenzelm@62017
  1695
"top". INCOMPATIBILITY.
Andreas@61629
  1696
hoelzl@62101
  1697
* Class uniform_space introduces uniform spaces btw topological spaces
hoelzl@62101
  1698
and metric spaces. Minor INCOMPATIBILITY: open_<type>_def needs to be
wenzelm@62205
  1699
introduced in the form of an uniformity. Some constants are more general
wenzelm@62205
  1700
now, it may be necessary to add type class constraints.
hoelzl@62101
  1701
hoelzl@62101
  1702
  open_real_def \<leadsto> open_dist
hoelzl@62101
  1703
  open_complex_def \<leadsto> open_dist
hoelzl@62101
  1704
wenzelm@62026
  1705
* Library/Monad_Syntax: notation uses symbols \<bind> and \<then>. INCOMPATIBILITY.
wenzelm@62026
  1706
Mathias@60397
  1707
* Library/Multiset:
Mathias@60397
  1708
  - Renamed multiset inclusion operators:
Mathias@60397
  1709
      < ~> <#
blanchet@62208
  1710
      > ~> >#
Mathias@60397
  1711
      <= ~> <=#
blanchet@62208
  1712
      >= ~> >=#
Mathias@60397
  1713
      \<le> ~> \<le>#
blanchet@62208
  1714
      \<ge> ~> \<ge>#
Mathias@60397
  1715
    INCOMPATIBILITY.
blanchet@62209
  1716
  - Added multiset inclusion operator syntax:
blanchet@62209
  1717
      \<subset>#
blanchet@62209
  1718
      \<subseteq>#
blanchet@62209
  1719
      \<supset>#
blanchet@62209
  1720
      \<supseteq>#
Mathias@60397
  1721
  - "'a multiset" is no longer an instance of the "order",
Mathias@60397
  1722
    "ordered_ab_semigroup_add_imp_le", "ordered_cancel_comm_monoid_diff",
Mathias@60397
  1723
    "semilattice_inf", and "semilattice_sup" type classes. The theorems
Mathias@60397
  1724
    previously provided by these type classes (directly or indirectly)
Mathias@60397
  1725
    are now available through the "subset_mset" interpretation
Mathias@60397
  1726
    (e.g. add_mono ~> subset_mset.add_mono).
Mathias@60397
  1727
    INCOMPATIBILITY.
nipkow@60497
  1728
  - Renamed conversions:
nipkow@60515
  1729
      multiset_of ~> mset
nipkow@60515
  1730
      multiset_of_set ~> mset_set
nipkow@60497
  1731
      set_of ~> set_mset
nipkow@60497
  1732
    INCOMPATIBILITY
Mathias@60398
  1733
  - Renamed lemmas:
Mathias@60398
  1734
      mset_le_def ~> subseteq_mset_def
Mathias@60398
  1735
      mset_less_def ~> subset_mset_def
Mathias@60400
  1736
      less_eq_multiset.rep_eq ~> subseteq_mset_def
Mathias@60400
  1737
    INCOMPATIBILITY
Mathias@60400
  1738
  - Removed lemmas generated by lift_definition:
wenzelm@62235
  1739
    less_eq_multiset.abs_eq, less_eq_multiset.rsp,
wenzelm@62235
  1740
    less_eq_multiset.transfer, less_eq_multiset_def
Mathias@60400
  1741
    INCOMPATIBILITY
wenzelm@60006
  1742
wenzelm@62017
  1743
* Library/Omega_Words_Fun: Infinite words modeled as functions nat \<Rightarrow> 'a.
wenzelm@62017
  1744
wenzelm@62017
  1745
* Library/Bourbaki_Witt_Fixpoint: Added formalisation of the
wenzelm@62017
  1746
Bourbaki-Witt fixpoint theorem for increasing functions in
wenzelm@62017
  1747
chain-complete partial orders.
wenzelm@62017
  1748
wenzelm@62017
  1749
* Library/Old_Recdef: discontinued obsolete 'defer_recdef' command.
wenzelm@62017
  1750
Minor INCOMPATIBILITY, use 'function' instead.
wenzelm@62017
  1751
wenzelm@62064
  1752
* Library/Periodic_Fun: a locale that provides convenient lemmas for
wenzelm@62064
  1753
periodic functions.
eberlm@62060
  1754
wenzelm@62098
  1755
* Library/Formal_Power_Series: proper definition of division (with
wenzelm@62098
  1756
remainder) for formal power series; instances for Euclidean Ring and
wenzelm@62098
  1757
GCD.
eberlm@62086
  1758
wenzelm@62084
  1759
* HOL-Imperative_HOL: obsolete theory Legacy_Mrec has been removed.
wenzelm@62084
  1760
wenzelm@62084
  1761
* HOL-Statespace: command 'statespace' uses mandatory qualifier for
wenzelm@62084
  1762
import of parent, as for general 'locale' expressions. INCOMPATIBILITY,
wenzelm@62084
  1763
remove '!' and add '?' as required.
wenzelm@62084
  1764
wenzelm@62237
  1765
* HOL-Decision_Procs: The "approximation" method works with "powr"
wenzelm@62237
  1766
(exponentiation on real numbers) again.
wenzelm@62237
  1767
wenzelm@62084
  1768
* HOL-Multivariate_Analysis: theory Cauchy_Integral_Thm with Contour
wenzelm@62084
  1769
integrals (= complex path integrals), Cauchy's integral theorem, winding
wenzelm@62084
  1770
numbers and Cauchy's integral formula, Liouville theorem, Fundamental
wenzelm@62084
  1771
Theorem of Algebra. Ported from HOL Light.
wenzelm@62084
  1772
wenzelm@62084
  1773
* HOL-Multivariate_Analysis: topological concepts such as connected
wenzelm@62017
  1774
components, homotopic paths and the inside or outside of a set.
wenzelm@61121
  1775
wenzelm@62084
  1776
* HOL-Multivariate_Analysis: radius of convergence of power series and
wenzelm@62064
  1777
various summability tests; Harmonic numbers and the Euler–Mascheroni
wenzelm@62064
  1778
constant; the Generalised Binomial Theorem; the complex and real
wenzelm@62064
  1779
Gamma/log-Gamma/Digamma/ Polygamma functions and their most important
wenzelm@62064
  1780
properties.
eberlm@62060
  1781
wenzelm@62084
  1782
* HOL-Probability: The central limit theorem based on Levy's uniqueness
wenzelm@62084
  1783
and continuity theorems, weak convergence, and characterisitc functions.
wenzelm@62084
  1784
wenzelm@62084
  1785
* HOL-Data_Structures: new and growing session of standard data
wenzelm@62084
  1786
structures.
lammich@61178
  1787
wenzelm@60479
  1788
wenzelm@60793
  1789
*** ML ***
wenzelm@60793
  1790
wenzelm@62017
  1791
* The following combinators for low-level profiling of the ML runtime
wenzelm@62017
  1792
system are available:
wenzelm@62017
  1793
wenzelm@62017
  1794
  profile_time          (*CPU time*)
wenzelm@62017
  1795
  profile_time_thread   (*CPU time on this thread*)
wenzelm@62017
  1796
  profile_allocations   (*overall heap allocations*)
wenzelm@62017
  1797
wenzelm@62017
  1798
* Antiquotation @{undefined} or \<^undefined> inlines (raise Match).
wenzelm@62017
  1799
wenzelm@62075
  1800
* Antiquotation @{method NAME} inlines the (checked) name of the given
wenzelm@62075
  1801
Isar proof method.
wenzelm@62075
  1802
wenzelm@61922
  1803
* Pretty printing of Poly/ML compiler output in Isabelle has been
wenzelm@61922
  1804
improved: proper treatment of break offsets and blocks with consistent
wenzelm@61922
  1805
breaks.
wenzelm@61922
  1806
wenzelm@61268
  1807
* The auxiliary module Pure/display.ML has been eliminated. Its
wenzelm@61268
  1808
elementary thm print operations are now in Pure/more_thm.ML and thus
wenzelm@61268
  1809
called Thm.pretty_thm, Thm.string_of_thm etc. INCOMPATIBILITY.
wenzelm@61268
  1810
wenzelm@61144
  1811
* Simproc programming interfaces have been simplified:
wenzelm@61144
  1812
Simplifier.make_simproc and Simplifier.define_simproc supersede various
wenzelm@61144
  1813
forms of Simplifier.mk_simproc, Simplifier.simproc_global etc. Note that
wenzelm@61144
  1814
term patterns for the left-hand sides are specified with implicitly
wenzelm@61144
  1815
fixed variables, like top-level theorem statements. INCOMPATIBILITY.
wenzelm@61144
  1816
wenzelm@60802
  1817
* Instantiation rules have been re-organized as follows:
wenzelm@60802
  1818
wenzelm@60802
  1819
  Thm.instantiate  (*low-level instantiation with named arguments*)
wenzelm@60802
  1820
  Thm.instantiate' (*version with positional arguments*)
wenzelm@60802
  1821
wenzelm@60802
  1822
  Drule.infer_instantiate  (*instantiation with type inference*)
wenzelm@60802
  1823
  Drule.infer_instantiate'  (*version with positional arguments*)
wenzelm@60802
  1824
wenzelm@60802
  1825
The LHS only requires variable specifications, instead of full terms.
wenzelm@60802
  1826
Old cterm_instantiate is superseded by infer_instantiate.
wenzelm@60802
  1827
INCOMPATIBILITY, need to re-adjust some ML names and types accordingly.
wenzelm@60802
  1828
wenzelm@60793
  1829
* Old tactic shorthands atac, rtac, etac, dtac, ftac have been
wenzelm@60793
  1830
discontinued. INCOMPATIBILITY, use regular assume_tac, resolve_tac etc.
wenzelm@60793
  1831
instead (with proper context).
wenzelm@60642
  1832
wenzelm@60642
  1833
* Thm.instantiate (and derivatives) no longer require the LHS of the
wenzelm@60642
  1834
instantiation to be certified: plain variables are given directly.
wenzelm@60642
  1835
wenzelm@60707
  1836
* Subgoal.SUBPROOF and Subgoal.FOCUS combinators use anonymous
wenzelm@60707
  1837
quasi-bound variables (like the Simplifier), instead of accidentally
wenzelm@60707
  1838
named local fixes. This has the potential to improve stability of proof
wenzelm@60707
  1839
tools, but can also cause INCOMPATIBILITY for tools that don't observe
wenzelm@60707
  1840
the proof context discipline.
wenzelm@60707
  1841
wenzelm@62017
  1842
* Isar proof methods are based on a slightly more general type
wenzelm@62017
  1843
context_tactic, which allows to change the proof context dynamically
wenzelm@62017
  1844
(e.g. to update cases) and indicate explicit Seq.Error results. Former
wenzelm@62017
  1845
METHOD_CASES is superseded by CONTEXT_METHOD; further combinators are
wenzelm@62017
  1846
provided in src/Pure/Isar/method.ML for convenience. INCOMPATIBILITY.
wenzelm@61885
  1847
wenzelm@60642
  1848
wenzelm@60983
  1849
*** System ***
wenzelm@60983
  1850
wenzelm@62525
  1851
* Command-line tool "isabelle console" enables print mode "ASCII".
wenzelm@61958
  1852
wenzelm@62017
  1853
* Command-line tool "isabelle update_then" expands old Isar command
wenzelm@62017
  1854
conflations:
wenzelm@62017
  1855
wenzelm@62017
  1856
    hence  ~>  then have
wenzelm@62017
  1857
    thus   ~>  then show
wenzelm@62017
  1858
wenzelm@62017
  1859
This syntax is more orthogonal and improves readability and
wenzelm@62017
  1860
maintainability of proofs.
wenzelm@62017
  1861
wenzelm@61602
  1862
* Global session timeout is multiplied by timeout_scale factor. This
wenzelm@61602
  1863
allows to adjust large-scale tests (e.g. AFP) to overall hardware
wenzelm@61602
  1864
performance.
wenzelm@61602
  1865
wenzelm@61174
  1866
* Property values in etc/symbols may contain spaces, if written with the
wenzelm@62671
  1867
replacement character "␣" (Unicode point 0x2324). For example:
wenzelm@62671
  1868
wenzelm@62671
  1869
    \<star>  code: 0x0022c6  group: operator  font: Deja␣Vu␣Sans␣Mono
wenzelm@61174
  1870
wenzelm@60995
  1871
* Java runtime environment for x86_64-windows allows to use larger heap
wenzelm@60995
  1872
space.
wenzelm@60995
  1873
wenzelm@61135
  1874
* Java runtime options are determined separately for 32bit vs. 64bit
wenzelm@61135
  1875
platforms as follows.
wenzelm@61135
  1876
wenzelm@61135
  1877
  - Isabelle desktop application: platform-specific files that are
wenzelm@61135
  1878
    associated with the main app bundle
wenzelm@61135
  1879
wenzelm@61135
  1880
  - isabelle jedit: settings
wenzelm@61135
  1881
    JEDIT_JAVA_SYSTEM_OPTIONS
wenzelm@61135
  1882
    JEDIT_JAVA_OPTIONS32 vs. JEDIT_JAVA_OPTIONS64
wenzelm@61135
  1883
wenzelm@61135
  1884
  - isabelle build: settings
wenzelm@61135
  1885
    ISABELLE_BUILD_JAVA_OPTIONS32 vs. ISABELLE_BUILD_JAVA_OPTIONS64
wenzelm@61135
  1886
wenzelm@61294
  1887
* Bash shell function "jvmpath" has been renamed to "platform_path": it
wenzelm@61294
  1888
is relevant both for Poly/ML and JVM processes.
wenzelm@61294
  1889
wenzelm@62017
  1890
* Poly/ML default platform architecture may be changed from 32bit to
wenzelm@62205
  1891
64bit via system option ML_system_64. A system restart (and rebuild) is
wenzelm@62205
  1892
required after change.
wenzelm@62017
  1893
wenzelm@62017
  1894
* Poly/ML 5.6 runs natively on x86-windows and x86_64-windows, which
wenzelm@62017
  1895
both allow larger heap space than former x86-cygwin.
wenzelm@62017
  1896
wenzelm@62157
  1897
* Heap images are 10-15% smaller due to less wasteful persistent theory
wenzelm@62157
  1898
content (using ML type theory_id instead of theory);
wenzelm@62157
  1899
wenzelm@60983
  1900
wenzelm@60479
  1901
wenzelm@60009
  1902
New in Isabelle2015 (May 2015)
wenzelm@60009
  1903
------------------------------
wenzelm@57695
  1904
wenzelm@57941
  1905
*** General ***
wenzelm@57941
  1906
wenzelm@59939
  1907
* Local theory specification commands may have a 'private' or
wenzelm@59990
  1908
'qualified' modifier to restrict name space accesses to the local scope,
wenzelm@59939
  1909
as provided by some "context begin ... end" block. For example:
wenzelm@59926
  1910
wenzelm@59926
  1911
  context
wenzelm@59926
  1912
  begin
wenzelm@59926
  1913
wenzelm@59926
  1914
  private definition ...
wenzelm@59926
  1915
  private lemma ...
wenzelm@59926
  1916
wenzelm@59990
  1917
  qualified definition ...
wenzelm@59990
  1918
  qualified lemma ...
wenzelm@59990
  1919
wenzelm@59926
  1920
  lemma ...
wenzelm@59926
  1921
  theorem ...
wenzelm@59926
  1922
wenzelm@59926
  1923
  end
wenzelm@59926
  1924
wenzelm@59901
  1925
* Command 'experiment' opens an anonymous locale context with private
wenzelm@59901
  1926
naming policy.
wenzelm@59901
  1927
wenzelm@59951
  1928
* Command 'notepad' requires proper nesting of begin/end and its proof
wenzelm@59951
  1929
structure in the body: 'oops' is no longer supported here. Minor
wenzelm@59951
  1930
INCOMPATIBILITY, use 'sorry' instead.
wenzelm@59951
  1931
wenzelm@59951
  1932
* Command 'named_theorems' declares a dynamic fact within the context,
wenzelm@59951
  1933
together with an attribute to maintain the content incrementally. This
wenzelm@59951
  1934
supersedes functor Named_Thms in Isabelle/ML, but with a subtle change
wenzelm@59951
  1935
of semantics due to external visual order vs. internal reverse order.
wenzelm@59951
  1936
wenzelm@59951
  1937
* 'find_theorems': search patterns which are abstractions are
wenzelm@59951
  1938
schematically expanded before search. Search results match the naive
wenzelm@59951
  1939
expectation more closely, particularly wrt. abbreviations.
wenzelm@59951
  1940
INCOMPATIBILITY.
wenzelm@59648
  1941
wenzelm@59569
  1942
* Commands 'method_setup' and 'attribute_setup' now work within a local
wenzelm@59569
  1943
theory context.
wenzelm@57941
  1944
wenzelm@58928
  1945
* Outer syntax commands are managed authentically within the theory
wenzelm@59569
  1946
context, without implicit global state. Potential for accidental
wenzelm@58928
  1947
INCOMPATIBILITY, make sure that required theories are really imported.
wenzelm@58928
  1948
wenzelm@60115
  1949
* Historical command-line terminator ";" is no longer accepted (and
wenzelm@60115
  1950
already used differently in Isar). Minor INCOMPATIBILITY, use "isabelle
wenzelm@60115
  1951
update_semicolons" to remove obsolete semicolons from old theory
wenzelm@60115
  1952
sources.
wenzelm@60115
  1953
wenzelm@59951
  1954
* Structural composition of proof methods (meth1; meth2) in Isar
wenzelm@59951
  1955
corresponds to (tac1 THEN_ALL_NEW tac2) in ML.
haftmann@59105
  1956
wenzelm@60119
  1957
* The Eisbach proof method language allows to define new proof methods
wenzelm@60119
  1958
by combining existing ones with their usual syntax. The "match" proof
wenzelm@60119
  1959
method provides basic fact/term matching in addition to
wenzelm@60119
  1960
premise/conclusion matching through Subgoal.focus, and binds fact names
wenzelm@60288
  1961
from matches as well as term patterns within matches. The Isabelle
wenzelm@60288
  1962
documentation provides an entry "eisbach" for the Eisbach User Manual.
wenzelm@60288
  1963
Sources and various examples are in ~~/src/HOL/Eisbach/.
wenzelm@60119
  1964
wenzelm@57941
  1965
wenzelm@58524
  1966
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@58524
  1967
wenzelm@59569
  1968
* Improved folding mode "isabelle" based on Isar syntax. Alternatively,
wenzelm@59569
  1969
the "sidekick" mode may be used for document structure.
wenzelm@59569
  1970
wenzelm@59569
  1971
* Extended bracket matching based on Isar language structure. System
wenzelm@59569
  1972
option jedit_structure_limit determines maximum number of lines to scan
wenzelm@59569
  1973
in the buffer.
wenzelm@58758
  1974
wenzelm@58540
  1975
* Support for BibTeX files: context menu, context-sensitive token
wenzelm@58540
  1976
marker, SideKick parser.
wenzelm@58524
  1977
wenzelm@58551
  1978
* Document antiquotation @{cite} provides formal markup, which is
wenzelm@60265
  1979
interpreted semi-formally based on .bib files that happen to be open in
wenzelm@60265
  1980
the editor (hyperlinks, completion etc.).
wenzelm@58551
  1981
wenzelm@58785
  1982
* Less waste of vertical space via negative line spacing (see Global
wenzelm@58785
  1983
Options / Text Area).
wenzelm@58785
  1984
wenzelm@60089
  1985
* Improved graphview panel with optional output of PNG or PDF, for
wenzelm@60273
  1986
display of 'thy_deps', 'class_deps' etc.
wenzelm@60009
  1987
wenzelm@60115
  1988
* The commands 'thy_deps' and 'class_deps' allow optional bounds to
wenzelm@60115
  1989
restrict the visualized hierarchy.
wenzelm@60093
  1990
wenzelm@60072
  1991
* Improved scheduling for asynchronous print commands (e.g. provers
wenzelm@60072
  1992
managed by the Sledgehammer panel) wrt. ongoing document processing.
wenzelm@60072
  1993
wenzelm@58524
  1994
wenzelm@59951
  1995
*** Document preparation ***
wenzelm@59951
  1996
wenzelm@59951
  1997
* Document markup commands 'chapter', 'section', 'subsection',
wenzelm@59951
  1998
'subsubsection', 'text', 'txt', 'text_raw' work uniformly in any
wenzelm@59951
  1999
context, even before the initial 'theory' command. Obsolete proof
wenzelm@59951
  2000
commands 'sect', 'subsect', 'subsubsect', 'txt_raw' have been
wenzelm@59951
  2001
discontinued, use 'section', 'subsection', 'subsubsection', 'text_raw'
wenzelm@59951
  2002
instead. The old 'header' command is still retained for some time, but
wenzelm@59951
  2003
should be replaced by 'chapter', 'section' etc. (using "isabelle
wenzelm@59951
  2004
update_header"). Minor INCOMPATIBILITY.
wenzelm@59951
  2005
wenzelm@60009
  2006
* Official support for "tt" style variants, via \isatt{...} or
wenzelm@60009
  2007
\begin{isabellett}...\end{isabellett}. The somewhat fragile \verb or
wenzelm@60009
  2008
verbatim environment of LaTeX is no longer used. This allows @{ML} etc.
wenzelm@60009
  2009
as argument to other macros (such as footnotes).
wenzelm@60009
  2010
wenzelm@60009
  2011
* Document antiquotation @{verbatim} prints ASCII text literally in "tt"
wenzelm@60009
  2012
style.
wenzelm@60009
  2013
wenzelm@60009
  2014
* Discontinued obsolete option "document_graph": session_graph.pdf is
wenzelm@60009
  2015
produced unconditionally for HTML browser_info and PDF-LaTeX document.
wenzelm@60009
  2016
wenzelm@59951
  2017
* Diagnostic commands and document markup commands within a proof do not
wenzelm@59951
  2018
affect the command tag for output. Thus commands like 'thm' are subject
wenzelm@59951
  2019
to proof document structure, and no longer "stick out" accidentally.
wenzelm@59951
  2020
Commands 'text' and 'txt' merely differ in the LaTeX style, not their
wenzelm@59951
  2021
tags. Potential INCOMPATIBILITY in exotic situations.
wenzelm@59951
  2022
wenzelm@59951
  2023
* System option "pretty_margin" is superseded by "thy_output_margin",
wenzelm@59951
  2024
which is also accessible via document antiquotation option "margin".
wenzelm@59951
  2025
Only the margin for document output may be changed, but not the global
wenzelm@59951
  2026
pretty printing: that is 76 for plain console output, and adapted
wenzelm@59951
  2027
dynamically in GUI front-ends. Implementations of document
wenzelm@59951
  2028
antiquotations need to observe the margin explicitly according to
wenzelm@59951
  2029
Thy_Output.string_of_margin. Minor INCOMPATIBILITY.
wenzelm@59951
  2030
wenzelm@60299
  2031
* Specification of 'document_files' in the session ROOT file is
wenzelm@60299
  2032
mandatory for document preparation. The legacy mode with implicit
wenzelm@60299
  2033
copying of the document/ directory is no longer supported. Minor
wenzelm@60299
  2034
INCOMPATIBILITY.
wenzelm@60299
  2035
wenzelm@59951
  2036
haftmann@58202
  2037
*** Pure ***
haftmann@58202
  2038
wenzelm@59835
  2039
* Proof methods with explicit instantiation ("rule_tac", "subgoal_tac"
wenzelm@59835
  2040
etc.) allow an optional context of local variables ('for' declaration):
wenzelm@59835
  2041
these variables become schematic in the instantiated theorem; this
wenzelm@59835
  2042
behaviour is analogous to 'for' in attributes "where" and "of".
wenzelm@59835
  2043
Configuration option rule_insts_schematic (default false) controls use
wenzelm@59835
  2044
of schematic variables outside the context. Minor INCOMPATIBILITY,
wenzelm@59835
  2045
declare rule_insts_schematic = true temporarily and update to use local
wenzelm@59835
  2046
variable declarations or dummy patterns instead.
wenzelm@59835
  2047
wenzelm@60009
  2048
* Explicit instantiation via attributes "where", "of", and proof methods
wenzelm@60009
  2049
"rule_tac" with derivatives like "subgoal_tac" etc. admit dummy patterns
wenzelm@60009
  2050
("_") that stand for anonymous local variables.
wenzelm@60009
  2051
wenzelm@59951
  2052
* Generated schematic variables in standard format of exported facts are
wenzelm@59951
  2053
incremented to avoid material in the proof context. Rare
wenzelm@59951
  2054
INCOMPATIBILITY, explicit instantiation sometimes needs to refer to
wenzelm@59951
  2055
different index.
wenzelm@59951
  2056
wenzelm@60010
  2057
* Lexical separation of signed and unsigned numerals: categories "num"
wenzelm@60010
  2058
and "float" are unsigned. INCOMPATIBILITY: subtle change in precedence
wenzelm@60010
  2059
of numeral signs, particularly in expressions involving infix syntax
wenzelm@60010
  2060
like "(- 1) ^ n".
haftmann@58410
  2061
wenzelm@58421
  2062
* Old inner token category "xnum" has been discontinued.  Potential
wenzelm@58421
  2063
INCOMPATIBILITY for exotic syntax: may use mixfix grammar with "num"
wenzelm@58421
  2064
token category instead.
wenzelm@58421
  2065
haftmann@58202
  2066
blanchet@57737
  2067
*** HOL ***
blanchet@57737
  2068
blanchet@57983
  2069
* New (co)datatype package:
blanchet@58373
  2070
  - The 'datatype_new' command has been renamed 'datatype'. The old
blanchet@58373
  2071
    command of that name is now called 'old_datatype' and is provided
blanchet@58373
  2072
    by "~~/src/HOL/Library/Old_Datatype.thy". See
blanchet@58373
  2073
    'isabelle doc datatypes' for information on porting.
blanchet@58373
  2074
    INCOMPATIBILITY.
blanchet@57983
  2075
  - Renamed theorems:
blanchet@57983
  2076
      disc_corec ~> corec_disc
blanchet@57983
  2077
      disc_corec_iff ~> corec_disc_iff
blanchet@57983
  2078
      disc_exclude ~> distinct_disc
blanchet@57983
  2079
      disc_exhaust ~> exhaust_disc
blanchet@57983
  2080
      disc_map_iff ~> map_disc_iff
blanchet@57983
  2081
      sel_corec ~> corec_sel
blanchet@57983
  2082
      sel_exhaust ~> exhaust_sel
blanchet@57983
  2083
      sel_map ~> map_sel
blanchet@57983
  2084
      sel_set ~> set_sel
blanchet@57983
  2085
      sel_split ~> split_sel
blanchet@57983
  2086
      sel_split_asm ~> split_sel_asm
blanchet@57983
  2087
      strong_coinduct ~> coinduct_strong
blanchet@57983
  2088
      weak_case_cong ~> case_cong_weak
blanchet@57983
  2089
    INCOMPATIBILITY.
blanchet@58192
  2090
  - The "no_code" option to "free_constructors", "datatype_new", and
blanchet@58192
  2091
    "codatatype" has been renamed "plugins del: code".
blanchet@58192
  2092
    INCOMPATIBILITY.
blanchet@58044
  2093
  - The rules "set_empty" have been removed. They are easy
blanchet@58044
  2094
    consequences of other set rules "by auto".
blanchet@58044
  2095
    INCOMPATIBILITY.
blanchet@58044
  2096
  - The rule "set_cases" is now registered with the "[cases set]"
blanchet@57990
  2097
    attribute. This can influence the behavior of the "cases" proof
blanchet@57990
  2098
    method when more than one case rule is applicable (e.g., an
blanchet@57990
  2099
    assumption is of the form "w : set ws" and the method "cases w"
blanchet@57990
  2100
    is invoked). The solution is to specify the case rule explicitly
blanchet@57990
  2101
    (e.g. "cases w rule: widget.exhaust").
blanchet@57990
  2102
    INCOMPATIBILITY.
blanchet@59675
  2103
  - Renamed theories:
blanchet@59675
  2104
      BNF_Comp ~> BNF_Composition
blanchet@59675
  2105
      BNF_FP_Base ~> BNF_Fixpoint_Base
blanchet@59675
  2106
      BNF_GFP ~> BNF_Greatest_Fixpoint
blanchet@59675
  2107
      BNF_LFP ~> BNF_Least_Fixpoint
blanchet@59675
  2108
      BNF_Constructions_on_Wellorders ~> BNF_Wellorder_Constructions
blanchet@59675
  2109
      Cardinals/Constructions_on_Wellorders ~> Cardinals/Wellorder_Constructions
blanchet@59675
  2110
    INCOMPATIBILITY.
wenzelm@60114
  2111
  - Lifting and Transfer setup for basic HOL types sum and prod (also
wenzelm@60114
  2112
    option) is now performed by the BNF package. Theories Lifting_Sum,
wenzelm@60114
  2113
    Lifting_Product and Lifting_Option from Main became obsolete and
wenzelm@60114
  2114
    were removed. Changed definitions of the relators rel_prod and
wenzelm@60114
  2115
    rel_sum (using inductive).
traytel@60111
  2116
    INCOMPATIBILITY: use rel_prod.simps and rel_sum.simps instead
wenzelm@60114
  2117
    of rel_prod_def and rel_sum_def.
wenzelm@60114
  2118
    Minor INCOMPATIBILITY: (rarely used by name) transfer theorem names
wenzelm@60114
  2119
    changed (e.g. map_prod_transfer ~> prod.map_transfer).
wenzelm@60261
  2120
  - Parametricity theorems for map functions, relators, set functions,
wenzelm@60261
  2121
    constructors, case combinators, discriminators, selectors and
wenzelm@60261
  2122
    (co)recursors are automatically proved and registered as transfer
wenzelm@60261
  2123
    rules.
blanchet@57983
  2124
blanchet@57983
  2125
* Old datatype package:
blanchet@58310
  2126
  - The old 'datatype' command has been renamed 'old_datatype', and
blanchet@58373
  2127
    'rep_datatype' has been renamed 'old_rep_datatype'. They are
blanchet@58373
  2128
    provided by "~~/src/HOL/Library/Old_Datatype.thy". See
blanchet@58310
  2129
    'isabelle doc datatypes' for information on porting.
blanchet@58373
  2130
    INCOMPATIBILITY.
blanchet@57983
  2131
  - Renamed theorems:
blanchet@57983
  2132
      weak_case_cong ~> case_cong_weak
blanchet@57983
  2133
    INCOMPATIBILITY.
blanchet@58373
  2134
  - Renamed theory:
blanchet@58373
  2135
      ~~/src/HOL/Datatype.thy ~> ~~/src/HOL/Library/Old_Datatype.thy
blanchet@58373
  2136
    INCOMPATIBILITY.
blanchet@57983
  2137
blanchet@59039
  2138
* Nitpick:
wenzelm@60010
  2139
  - Fixed soundness bug related to the strict and non-strict subset
blanchet@59039
  2140
    operations.
blanchet@59039
  2141
blanchet@57737
  2142
* Sledgehammer:
blanchet@59511
  2143
  - CVC4 is now included with Isabelle instead of CVC3 and run by
blanchet@59511
  2144
    default.
blanchet@59965
  2145
  - Z3 is now always enabled by default, now that it is fully open
blanchet@59965
  2146
    source. The "z3_non_commercial" option is discontinued.
blanchet@57737
  2147
  - Minimization is now always enabled by default.
wenzelm@60010
  2148
    Removed sub-command:
blanchet@57737
  2149
      min
blanchet@59967
  2150
  - Proof reconstruction, both one-liners and Isar, has been
blanchet@59039
  2151
    dramatically improved.
blanchet@59039
  2152
  - Improved support for CVC4 and veriT.
blanchet@57737
  2153
blanchet@58062
  2154
* Old and new SMT modules:
blanchet@58067
  2155
  - The old 'smt' method has been renamed 'old_smt' and moved to
wenzelm@59569
  2156
    'src/HOL/Library/Old_SMT.thy'. It is provided for compatibility,
wenzelm@59569
  2157
    until applications have been ported to use the new 'smt' method. For
wenzelm@59569
  2158
    the method to work, an older version of Z3 (e.g. Z3 3.2 or 4.0) must
wenzelm@59569
  2159
    be installed, and the environment variable "OLD_Z3_SOLVER" must
wenzelm@59569
  2160
    point to it.
blanchet@58062
  2161
    INCOMPATIBILITY.
blanchet@58067
  2162
  - The 'smt2' method has been renamed 'smt'.
blanchet@58060
  2163
    INCOMPATIBILITY.
wenzelm@59569
  2164
  - New option 'smt_reconstruction_step_timeout' to limit the
wenzelm@59569
  2165
    reconstruction time of Z3 proof steps in the new 'smt' method.
boehmes@59216
  2166
  - New option 'smt_statistics' to display statistics of the new 'smt'
boehmes@59216
  2167
    method, especially runtime statistics of Z3 proof reconstruction.
blanchet@58060
  2168
wenzelm@60261
  2169
* Lifting: command 'lift_definition' allows to execute lifted constants
wenzelm@60261
  2170
that have as a return type a datatype containing a subtype. This
wenzelm@60261
  2171
overcomes long-time limitations in the area of code generation and
wenzelm@60261
  2172
lifting, and avoids tedious workarounds.
kuncar@60258
  2173
wenzelm@60009
  2174
* Command and antiquotation "value" provide different evaluation slots
wenzelm@60009
  2175
(again), where the previous strategy (NBE after ML) serves as default.
wenzelm@60009
  2176
Minor INCOMPATIBILITY.
wenzelm@60009
  2177
wenzelm@60009
  2178
* Add NO_MATCH-simproc, allows to check for syntactic non-equality.
wenzelm@60009
  2179
wenzelm@60009
  2180
* field_simps: Use NO_MATCH-simproc for distribution rules, to avoid
wenzelm@60009
  2181
non-termination in case of distributing a division. With this change
wenzelm@60009
  2182
field_simps is in some cases slightly less powerful, if it fails try to
wenzelm@60009
  2183
add algebra_simps, or use divide_simps. Minor INCOMPATIBILITY.
wenzelm@60009
  2184
wenzelm@60009
  2185
* Separate class no_zero_divisors has been given up in favour of fully
wenzelm@60009
  2186
algebraic semiring_no_zero_divisors. INCOMPATIBILITY.
wenzelm@60009
  2187
wenzelm@60009
  2188
* Class linordered_semidom really requires no zero divisors.
wenzelm@60009
  2189
INCOMPATIBILITY.
wenzelm@60009
  2190
wenzelm@60009
  2191
* Classes division_ring, field and linordered_field always demand
wenzelm@60009
  2192
"inverse 0 = 0". Given up separate classes division_ring_inverse_zero,
wenzelm@60009
  2193
field_inverse_zero and linordered_field_inverse_zero. INCOMPATIBILITY.
wenzelm@60009
  2194
wenzelm@60009
  2195
* Classes cancel_ab_semigroup_add / cancel_monoid_add specify explicit
wenzelm@60009
  2196
additive inverse operation. INCOMPATIBILITY.
wenzelm@60009
  2197
lp15@60020
  2198
* Complex powers and square roots. The functions "ln" and "powr" are now
wenzelm@60025
  2199
overloaded for types real and complex, and 0 powr y = 0 by definition.
wenzelm@60025
  2200
INCOMPATIBILITY: type constraints may be necessary.
lp15@60020
  2201
wenzelm@60009
  2202
* The functions "sin" and "cos" are now defined for any type of sort
wenzelm@60009
  2203
"{real_normed_algebra_1,banach}" type, so in particular on "real" and
wenzelm@60009
  2204
"complex" uniformly. Minor INCOMPATIBILITY: type constraints may be
wenzelm@60009
  2205
needed.
wenzelm@60009
  2206
wenzelm@60009
  2207
* New library of properties of the complex transcendental functions sin,
wenzelm@60009
  2208
cos, tan, exp, Ln, Arctan, Arcsin, Arccos. Ported from HOL Light.
wenzelm@60009
  2209
wenzelm@60009
  2210
* The factorial function, "fact", now has type "nat => 'a" (of a sort
wenzelm@60009
  2211
that admits numeric types including nat, int, real and complex.
wenzelm@60009
  2212
INCOMPATIBILITY: an expression such as "fact 3 = 6" may require a type
wenzelm@60009
  2213
constraint, and the combination "real (fact k)" is likely to be
wenzelm@60009
  2214
unsatisfactory. If a type conversion is still necessary, then use
wenzelm@60009
  2215
"of_nat (fact k)" or "real_of_nat (fact k)".
wenzelm@60009
  2216
wenzelm@60009
  2217
* Removed functions "natfloor" and "natceiling", use "nat o floor" and
wenzelm@60009
  2218
"nat o ceiling" instead. A few of the lemmas have been retained and
wenzelm@60009
  2219
adapted: in their names "natfloor"/"natceiling" has been replaced by
wenzelm@60009
  2220
"nat_floor"/"nat_ceiling".
wenzelm@60009
  2221
wenzelm@60009
  2222
* Qualified some duplicated fact names required for boostrapping the
wenzelm@60009
  2223
type class hierarchy:
wenzelm@60009
  2224
  ab_add_uminus_conv_diff ~> diff_conv_add_uminus
wenzelm@60009
  2225
  field_inverse_zero ~> inverse_zero
wenzelm@60009
  2226
  field_divide_inverse ~> divide_inverse
wenzelm@60009
  2227
  field_inverse ~> left_inverse
wenzelm@60009
  2228
Minor INCOMPATIBILITY.
wenzelm@60009
  2229
wenzelm@60009
  2230
* Eliminated fact duplicates:
wenzelm@60009
  2231
  mult_less_imp_less_right ~> mult_right_less_imp_less
wenzelm@60009
  2232
  mult_less_imp_less_left ~> mult_left_less_imp_less
wenzelm@60009
  2233
Minor INCOMPATIBILITY.
wenzelm@60009
  2234
wenzelm@60009
  2235
* Fact consolidation: even_less_0_iff is subsumed by
wenzelm@60009
  2236
double_add_less_zero_iff_single_add_less_zero (simp by default anyway).
wenzelm@60009
  2237
wenzelm@60009
  2238
* Generalized and consolidated some theorems concerning divsibility:
wenzelm@60009
  2239
  dvd_reduce ~> dvd_add_triv_right_iff
wenzelm@60009
  2240
  dvd_plus_eq_right ~> dvd_add_right_iff
wenzelm@60009
  2241
  dvd_plus_eq_left ~> dvd_add_left_iff
wenzelm@60009
  2242
Minor INCOMPATIBILITY.
wenzelm@60009
  2243
wenzelm@60009
  2244
* "even" and "odd" are mere abbreviations for "2 dvd _" and "~ 2 dvd _"
wenzelm@60009
  2245
and part of theory Main.
wenzelm@60009
  2246
  even_def ~> even_iff_mod_2_eq_zero
wenzelm@60009
  2247
INCOMPATIBILITY.
wenzelm@60009
  2248
wenzelm@60009
  2249
* Lemma name consolidation: divide_Numeral1 ~> divide_numeral_1. Minor
wenzelm@60009
  2250
INCOMPATIBILITY.
wenzelm@60009
  2251
wenzelm@60009
  2252
* Bootstrap of listsum as special case of abstract product over lists.
wenzelm@60009
  2253
Fact rename:
wenzelm@60009
  2254
    listsum_def ~> listsum.eq_foldr
wenzelm@60009
  2255
INCOMPATIBILITY.
wenzelm@60009
  2256
wenzelm@60009
  2257
* Product over lists via constant "listprod".
wenzelm@60009
  2258
wenzelm@60009
  2259
* Theory List: renamed drop_Suc_conv_tl and nth_drop' to
wenzelm@60009
  2260
Cons_nth_drop_Suc.
nipkow@58247
  2261
Andreas@58626
  2262
* New infrastructure for compiling, running, evaluating and testing
wenzelm@59569
  2263
generated code in target languages in HOL/Library/Code_Test. See
wenzelm@59569
  2264
HOL/Codegenerator_Test/Code_Test* for examples.
wenzelm@58008
  2265
wenzelm@60009
  2266
* Library/Multiset:
blanchet@59813
  2267
  - Introduced "replicate_mset" operation.
blanchet@59813
  2268
  - Introduced alternative characterizations of the multiset ordering in
blanchet@59813
  2269
    "Library/Multiset_Order".
blanchet@59958
  2270
  - Renamed multiset ordering:
blanchet@59958
  2271
      <# ~> #<#
blanchet@59958
  2272
      <=# ~> #<=#
blanchet@59958
  2273
      \<subset># ~> #\<subset>#
blanchet@59958
  2274
      \<subseteq># ~> #\<subseteq>#
blanchet@59958
  2275
    INCOMPATIBILITY.
blanchet@59986
  2276
  - Introduced abbreviations for ill-named multiset operations:
blanchet@59986
  2277
      <#, \<subset># abbreviate < (strict subset)
blanchet@59986
  2278
      <=#, \<le>#, \<subseteq># abbreviate <= (subset or equal)
blanchet@59986
  2279
    INCOMPATIBILITY.
blanchet@59813
  2280
  - Renamed
blanchet@59813
  2281
      in_multiset_of ~> in_multiset_in_set
nipkow@59998
  2282
      Multiset.fold ~> fold_mset
nipkow@59998
  2283
      Multiset.filter ~> filter_mset
blanchet@59813
  2284
    INCOMPATIBILITY.
nipkow@59949
  2285
  - Removed mcard, is equal to size.
blanchet@59813
  2286
  - Added attributes:
blanchet@59813
  2287
      image_mset.id [simp]
blanchet@59813
  2288
      image_mset_id [simp]
blanchet@59813
  2289
      elem_multiset_of_set [simp, intro]
blanchet@59813
  2290
      comp_fun_commute_plus_mset [simp]
blanchet@59813
  2291
      comp_fun_commute.fold_mset_insert [OF comp_fun_commute_plus_mset, simp]
blanchet@59813
  2292
      in_mset_fold_plus_iff [iff]
blanchet@59813
  2293
      set_of_Union_mset [simp]
blanchet@59813
  2294
      in_Union_mset_iff [iff]
blanchet@59813
  2295
    INCOMPATIBILITY.
blanchet@59813
  2296
wenzelm@60009
  2297
* Library/Sum_of_Squares: simplified and improved "sos" method. Always
wenzelm@60009
  2298
use local CSDP executable, which is much faster than the NEOS server.
wenzelm@60009
  2299
The "sos_cert" functionality is invoked as "sos" with additional
wenzelm@60009
  2300
argument. Minor INCOMPATIBILITY.
wenzelm@60009
  2301
wenzelm@60009
  2302
* HOL-Decision_Procs: New counterexample generator quickcheck
wenzelm@60009
  2303
[approximation] for inequalities of transcendental functions. Uses
wenzelm@60009
  2304
hardware floating point arithmetic to randomly discover potential
wenzelm@60010
  2305
counterexamples. Counterexamples are certified with the "approximation"
wenzelm@60009
  2306
method. See HOL/Decision_Procs/ex/Approximation_Quickcheck_Ex.thy for
wenzelm@60009
  2307
examples.
immler@58990
  2308
hoelzl@59354
  2309
* HOL-Probability: Reworked measurability prover
wenzelm@60010
  2310
  - applies destructor rules repeatedly
hoelzl@59354
  2311
  - removed application splitting (replaced by destructor rule)
wenzelm@59569
  2312
  - added congruence rules to rewrite measure spaces under the sets
wenzelm@59569
  2313
    projection
wenzelm@59569
  2314
wenzelm@60009
  2315
* New proof method "rewrite" (in theory ~~/src/HOL/Library/Rewrite) for
wenzelm@60009
  2316
single-step rewriting with subterm selection based on patterns.
wenzelm@60009
  2317
wenzelm@58630
  2318
blanchet@58066
  2319
*** ML ***
blanchet@58066
  2320
wenzelm@60009
  2321
* Subtle change of name space policy: undeclared entries are now
wenzelm@60009
  2322
considered inaccessible, instead of accessible via the fully-qualified
wenzelm@60009
  2323
internal name. This mainly affects Name_Space.intern (and derivatives),
wenzelm@60009
  2324
which may produce an unexpected Long_Name.hidden prefix. Note that
wenzelm@60010
  2325
contemporary applications use the strict Name_Space.check (and
wenzelm@60009
  2326
derivatives) instead, which is not affected by the change. Potential
wenzelm@60009
  2327
INCOMPATIBILITY in rare applications of Name_Space.intern.
wenzelm@59951
  2328
wenzelm@60094
  2329
* Subtle change of error semantics of Toplevel.proof_of: regular user
wenzelm@60094
  2330
ERROR instead of internal Toplevel.UNDEF.
wenzelm@60094
  2331
wenzelm@59951
  2332
* Basic combinators map, fold, fold_map, split_list, apply are available
wenzelm@59951
  2333
as parameterized antiquotations, e.g. @{map 4} for lists of quadruples.
wenzelm@59951
  2334
wenzelm@59951
  2335
* Renamed "pairself" to "apply2", in accordance to @{apply 2}.
wenzelm@59951
  2336
INCOMPATIBILITY.
wenzelm@59951
  2337
wenzelm@59951
  2338
* Former combinators NAMED_CRITICAL and CRITICAL for central critical
wenzelm@59951
  2339
sections have been discontinued, in favour of the more elementary
wenzelm@59951
  2340
Multithreading.synchronized and its high-level derivative
wenzelm@59951
  2341
Synchronized.var (which is usually sufficient in applications). Subtle
wenzelm@59951
  2342
INCOMPATIBILITY: synchronized access needs to be atomic and cannot be
wenzelm@59951
  2343
nested.
wenzelm@59951
  2344
wenzelm@60009
  2345
* Synchronized.value (ML) is actually synchronized (as in Scala): subtle
wenzelm@60009
  2346
change of semantics with minimal potential for INCOMPATIBILITY.
wenzelm@59899
  2347
wenzelm@59621
  2348
* The main operations to certify logical entities are Thm.ctyp_of and
wenzelm@59621
  2349
Thm.cterm_of with a local context; old-style global theory variants are
wenzelm@59621
  2350
available as Thm.global_ctyp_of and Thm.global_cterm_of.
wenzelm@59621
  2351
INCOMPATIBILITY.
wenzelm@59621
  2352
wenzelm@59582
  2353
* Elementary operations in module Thm are no longer pervasive.
wenzelm@59582
  2354
INCOMPATIBILITY, need to use qualified Thm.prop_of, Thm.cterm_of,
wenzelm@59582
  2355
Thm.term_of etc.
wenzelm@59582
  2356
wenzelm@58963
  2357
* Proper context for various elementary tactics: assume_tac,
wenzelm@59498
  2358
resolve_tac, eresolve_tac, dresolve_tac, forward_tac, match_tac,
wenzelm@59498
  2359
compose_tac, Splitter.split_tac etc. INCOMPATIBILITY.
wenzelm@58956
  2360
blanchet@58066
  2361
* Tactical PARALLEL_ALLGOALS is the most common way to refer to
blanchet@58066
  2362
PARALLEL_GOALS.
blanchet@58066
  2363
wenzelm@59564
  2364
* Goal.prove_multi is superseded by the fully general Goal.prove_common,
wenzelm@59564
  2365
which also allows to specify a fork priority.
wenzelm@59564
  2366
wenzelm@59936
  2367
* Antiquotation @{command_spec "COMMAND"} is superseded by
wenzelm@59936
  2368
@{command_keyword COMMAND} (usually without quotes and with PIDE
wenzelm@59936
  2369
markup). Minor INCOMPATIBILITY.
wenzelm@59936
  2370
wenzelm@60009
  2371
* Cartouches within ML sources are turned into values of type
wenzelm@60009
  2372
Input.source (with formal position information).
wenzelm@60009
  2373
blanchet@58066
  2374
wenzelm@58610
  2375
*** System ***
wenzelm@58610
  2376
wenzelm@59951
  2377
* The Isabelle tool "update_cartouches" changes theory files to use
wenzelm@59951
  2378
cartouches instead of old-style {* verbatim *} or `alt_string` tokens.
wenzelm@59951
  2379
wenzelm@60106
  2380
* The Isabelle tool "build" provides new options -X, -k, -x.
wenzelm@59951
  2381
wenzelm@59951
  2382
* Discontinued old-fashioned "codegen" tool. Code generation can always
wenzelm@59951
  2383
be externally triggered using an appropriate ROOT file plus a
wenzelm@59951
  2384
corresponding theory. Parametrization is possible using environment
wenzelm@59951
  2385
variables, or ML snippets in the most extreme cases. Minor
wenzelm@59951
  2386
INCOMPATIBILITY.
wenzelm@58842
  2387
wenzelm@59200
  2388
* JVM system property "isabelle.threads" determines size of Scala thread
wenzelm@59200
  2389
pool, like Isabelle system option "threads" for ML.
wenzelm@59200
  2390
wenzelm@59201
  2391
* JVM system property "isabelle.laf" determines the default Swing
wenzelm@59201
  2392
look-and-feel, via internal class name or symbolic name as in the jEdit
wenzelm@59201
  2393
menu Global Options / Appearance.
wenzelm@59201
  2394
wenzelm@59951
  2395
* Support for Proof General and Isar TTY loop has been discontinued.
wenzelm@60009
  2396
Minor INCOMPATIBILITY, use standard PIDE infrastructure instead.
wenzelm@59891
  2397
wenzelm@58610
  2398
wenzelm@57695
  2399
wenzelm@57452
  2400
New in Isabelle2014 (August 2014)
wenzelm@57452
  2401
---------------------------------
wenzelm@54055
  2402
wenzelm@54702
  2403
*** General ***
wenzelm@54702
  2404
wenzelm@57452
  2405
* Support for official Standard ML within the Isabelle context.
wenzelm@57452
  2406
Command 'SML_file' reads and evaluates the given Standard ML file.
wenzelm@57452
  2407
Toplevel bindings are stored within the theory context; the initial
wenzelm@57452
  2408
environment is restricted to the Standard ML implementation of
wenzelm@57452
  2409
Poly/ML, without the add-ons of Isabelle/ML.  Commands 'SML_import'
wenzelm@57452
  2410
and 'SML_export' allow to exchange toplevel bindings between the two
wenzelm@57452
  2411
separate environments.  See also ~~/src/Tools/SML/Examples.thy for
wenzelm@57452
  2412
some examples.
wenzelm@56499
  2413
wenzelm@57504
  2414
* Standard tactics and proof methods such as "clarsimp", "auto" and
wenzelm@57504
  2415
"safe" now preserve equality hypotheses "x = expr" where x is a free
wenzelm@57504
  2416
variable.  Locale assumptions and chained facts containing "x"
wenzelm@57504
  2417
continue to be useful.  The new method "hypsubst_thin" and the
wenzelm@57504
  2418
configuration option "hypsubst_thin" (within the attribute name space)
wenzelm@57504
  2419
restore the previous behavior.  INCOMPATIBILITY, especially where
wenzelm@57504
  2420
induction is done after these methods or when the names of free and
wenzelm@57504
  2421
bound variables clash.  As first approximation, old proofs may be
wenzelm@57504
  2422
repaired by "using [[hypsubst_thin = true]]" in the critical spot.
wenzelm@57504
  2423
wenzelm@56232
  2424
* More static checking of proof methods, which allows the system to
wenzelm@56232
  2425
form a closure over the concrete syntax.  Method arguments should be
wenzelm@56232
  2426
processed in the original proof context as far as possible, before
wenzelm@56232
  2427
operating on the goal state.  In any case, the standard discipline for
wenzelm@56232
  2428
subgoal-addressing needs to be observed: no subgoals or a subgoal
wenzelm@56232
  2429
number that is out of range produces an empty result sequence, not an
wenzelm@56232
  2430
exception.  Potential INCOMPATIBILITY for non-conformant tactical
wenzelm@56232
  2431
proof tools.
wenzelm@56232
  2432
wenzelm@57452
  2433
* Lexical syntax (inner and outer) supports text cartouches with
wenzelm@57452
  2434
arbitrary nesting, and without escapes of quotes etc.  The Prover IDE
wenzelm@57452
  2435
supports input via ` (backquote).
wenzelm@57452
  2436
wenzelm@57452
  2437
* The outer syntax categories "text" (for formal comments and document
wenzelm@57452
  2438
markup commands) and "altstring" (for literal fact references) allow
wenzelm@57452
  2439
cartouches as well, in addition to the traditional mix of quotations.
wenzelm@57452
  2440
wenzelm@57452
  2441
* Syntax of document antiquotation @{rail} now uses \<newline> instead
wenzelm@57452
  2442
of "\\", to avoid the optical illusion of escaped backslash within
wenzelm@57491
  2443
string token.  General renovation of its syntax using text cartouches.
wenzelm@57452
  2444
Minor INCOMPATIBILITY.
wenzelm@57452
  2445
wenzelm@57452
  2446
* Discontinued legacy_isub_isup, which was a temporary workaround for
wenzelm@57452
  2447
Isabelle/ML in Isabelle2013-1.  The prover process no longer accepts
wenzelm@57452
  2448
old identifier syntax with \<^isub> or \<^isup>.  Potential
wenzelm@57452
  2449
INCOMPATIBILITY.
wenzelm@57452
  2450
wenzelm@57452
  2451
* Document antiquotation @{url} produces markup for the given URL,
wenzelm@57452
  2452
which results in an active hyperlink within the text.
wenzelm@57452
  2453
wenzelm@57452
  2454
* Document antiquotation @{file_unchecked} is like @{file}, but does
wenzelm@57452
  2455
not check existence within the file-system.
wenzelm@57452
  2456
wenzelm@57452
  2457
* Updated and extended manuals: codegen, datatypes, implementation,
wenzelm@57452
  2458
isar-ref, jedit, system.
wenzelm@57423
  2459
wenzelm@54702
  2460
wenzelm@54533
  2461
*** Prover IDE -- Isabelle/Scala/jEdit ***
wenzelm@54533
  2462
wenzelm@57650
  2463
* Improved Document panel: simplified interaction where every single
wenzelm@57452
  2464
mouse click (re)opens document via desktop environment or as jEdit
wenzelm@57452
  2465
buffer.
wenzelm@57452
  2466
wenzelm@57452
  2467
* Support for Navigator plugin (with toolbar buttons), with connection
wenzelm@57452
  2468
to PIDE hyperlinks.
wenzelm@57452
  2469
wenzelm@57452
  2470
* Auxiliary files ('ML_file' etc.) are managed by the Prover IDE.
wenzelm@57452
  2471
Open text buffers take precedence over copies within the file-system.
wenzelm@57452
  2472
wenzelm@57452
  2473
* Improved support for Isabelle/ML, with jEdit mode "isabelle-ml" for
wenzelm@57452
  2474
auxiliary ML files.
wenzelm@57423
  2475
wenzelm@57423
  2476
* Improved syntactic and semantic completion mechanism, with simple
wenzelm@57423
  2477
templates, completion language context, name-space completion,
wenzelm@57423
  2478
file-name completion, spell-checker completion.
wenzelm@57423
  2479
wenzelm@57423
  2480
* Refined GUI popup for completion: more robust key/mouse event
wenzelm@57423
  2481
handling and propagation to enclosing text area -- avoid loosing
wenzelm@57423
  2482
keystrokes with slow / remote graphics displays.
wenzelm@57423
  2483
wenzelm@57833
  2484
* Completion popup supports both ENTER and TAB (default) to select an
wenzelm@57833
  2485
item, depending on Isabelle options.
wenzelm@57833
  2486
wenzelm@57423
  2487
* Refined insertion of completion items wrt. jEdit text: multiple
wenzelm@57423
  2488
selections, rectangular selections, rectangular selection as "tall
wenzelm@57423
  2489
caret".
wenzelm@56342
  2490
wenzelm@56580
  2491
* Integrated spell-checker for document text, comments etc. with
wenzelm@57423
  2492
completion popup and context-menu.
wenzelm@56554
  2493
wenzelm@56879
  2494
* More general "Query" panel supersedes "Find" panel, with GUI access
wenzelm@56879
  2495
to commands 'find_theorems' and 'find_consts', as well as print
wenzelm@56879
  2496
operations for the context.  Minor incompatibility in keyboard
wenzelm@56879
  2497
shortcuts etc.: replace action isabelle-find by isabelle-query.
wenzelm@56761
  2498
wenzelm@56901
  2499
* Search field for all output panels ("Output", "Query", "Info" etc.)
wenzelm@56901
  2500
to highlight text via regular expression.
wenzelm@56901
  2501
wenzelm@54881
  2502
* Option "jedit_print_mode" (see also "Plugin Options / Isabelle /
wenzelm@54881
  2503
General") allows to specify additional print modes for the prover
wenzelm@54881
  2504
process, without requiring old-fashioned command-line invocation of
wenzelm@54881
  2505
"isabelle jedit -m MODE".
wenzelm@54881
  2506
wenzelm@56505
  2507
* More support for remote files (e.g. http) using standard Java
wenzelm@56505
  2508
networking operations instead of jEdit virtual file-systems.
wenzelm@56505
  2509
wenzelm@57822
  2510
* Empty editors buffers that are no longer required (e.g.\ via theory
wenzelm@57822
  2511
imports) are automatically removed from the document model.
wenzelm@57822
  2512
wenzelm@57869
  2513
* Improved monitor panel.
wenzelm@57869
  2514
wenzelm@56838
  2515
* Improved Console/Scala plugin: more uniform scala.Console output,
wenzelm@56838
  2516
more robust treatment of threads and interrupts.
wenzelm@56838
  2517
wenzelm@56939
  2518
* Improved management of dockable windows: clarified keyboard focus
wenzelm@56939
  2519
and window placement wrt. main editor view; optional menu item to
wenzelm@56939
  2520
"Detach" a copy where this makes sense.
wenzelm@56939
  2521
wenzelm@57452
  2522
* New Simplifier Trace panel provides an interactive view of the
wenzelm@57591
  2523
simplification process, enabled by the "simp_trace_new" attribute
wenzelm@57452
  2524
within the context.
wenzelm@57452
  2525
wenzelm@57452
  2526
wenzelm@55001
  2527
*** Pure ***
wenzelm@55001
  2528
wenzelm@57504
  2529
* Low-level type-class commands 'classes', 'classrel', 'arities' have
wenzelm@57504
  2530
been discontinued to avoid the danger of non-trivial axiomatization
wenzelm@57504
  2531
that is not immediately visible.  INCOMPATIBILITY, use regular
wenzelm@57504
  2532
'instance' command with proof.  The required OFCLASS(...) theorem
wenzelm@57504
  2533
might be postulated via 'axiomatization' beforehand, or the proof
wenzelm@57504
  2534
finished trivially if the underlying class definition is made vacuous
wenzelm@57504
  2535
(without any assumptions).  See also Isabelle/ML operations
wenzelm@57504
  2536
Axclass.class_axiomatization, Axclass.classrel_axiomatization,
wenzelm@57504
  2537
Axclass.arity_axiomatization.
wenzelm@57504
  2538
wenzelm@56245
  2539
* Basic constants of Pure use more conventional names and are always
wenzelm@56245
  2540
qualified.  Rare INCOMPATIBILITY, but with potentially serious
wenzelm@56245
  2541
consequences, notably for tools in Isabelle/ML.  The following
wenzelm@56245
  2542
renaming needs to be applied:
wenzelm@56245
  2543
wenzelm@56245
  2544
  ==             ~>  Pure.eq
wenzelm@56245
  2545
  ==>            ~>  Pure.imp
wenzelm@56245
  2546
  all            ~>  Pure.all
wenzelm@56245
  2547
  TYPE           ~>  Pure.type
wenzelm@56245
  2548
  dummy_pattern  ~>  Pure.dummy_pattern
wenzelm@56245
  2549
wenzelm@56245
  2550
Systematic porting works by using the following theory setup on a
wenzelm@56245
  2551
*previous* Isabelle version to introduce the new name accesses for the
wenzelm@56245
  2552
old constants:
wenzelm@56245
  2553
wenzelm@56245
  2554
setup {*
wenzelm@56245
  2555
  fn thy => thy
wenzelm@56245
  2556
    |> Sign.root_path
wenzelm@56245
  2557
    |> Sign.const_alias (Binding.qualify true "Pure" @{binding eq}) "=="
wenzelm@56245
  2558
    |> Sign.const_alias (Binding.qualify true "Pure" @{binding imp}) "==>"
wenzelm@56245
  2559
    |> Sign.const_alias (Binding.qualify true "Pure" @{binding all}) "all"
wenzelm@56245
  2560
    |> Sign.restore_naming thy
wenzelm@56245
  2561
*}
wenzelm@56245
  2562
wenzelm@56245
  2563
Thus ML antiquotations like @{const_name Pure.eq} may be used already.
wenzelm@56245
  2564
Later the application is moved to the current Isabelle version, and
wenzelm@56245
  2565
the auxiliary aliases are deleted.
wenzelm@56245
  2566
wenzelm@55143
  2567
* Attributes "where" and "of" allow an optional context of local
wenzelm@55143
  2568
variables ('for' declaration): these variables become schematic in the
wenzelm@55143
  2569
instantiated theorem.
wenzelm@55143
  2570
wenzelm@55152
  2571
* Obsolete attribute "standard" has been discontinued (legacy since
wenzelm@55152
  2572
Isabelle2012).  Potential INCOMPATIBILITY, use explicit 'for' context
wenzelm@55152
  2573
where instantiations with schematic variables are intended (for
wenzelm@55152
  2574
declaration commands like 'lemmas' or attributes like "of").  The
wenzelm@55152
  2575
following temporary definition may help to port old applications:
wenzelm@55152
  2576
wenzelm@55152
  2577
  attribute_setup standard =
wenzelm@55152
  2578
    "Scan.succeed (Thm.rule_attribute (K Drule.export_without_context))"
wenzelm@55152
  2579
wenzelm@55001
  2580
* More thorough check of proof context for goal statements and
wenzelm@55006
  2581
attributed fact expressions (concerning background theory, declared
wenzelm@55006
  2582
hyps).  Potential INCOMPATIBILITY, tools need to observe standard
wenzelm@55006
  2583
context discipline.  See also Assumption.add_assumes and the more
wenzelm@55006
  2584
primitive Thm.assume_hyps.
wenzelm@55001
  2585
wenzelm@55108
  2586
* Inner syntax token language allows regular quoted strings "..."
wenzelm@55108
  2587
(only makes sense in practice, if outer syntax is delimited
wenzelm@57452
  2588
differently, e.g. via cartouches).
wenzelm@57452
  2589
wenzelm@57504
  2590
* Command 'print_term_bindings' supersedes 'print_binds' for clarity,
wenzelm@57504
  2591
but the latter is retained some time as Proof General legacy.
wenzelm@57504
  2592
wenzelm@57452
  2593
* Code generator preprocessor: explicit control of simp tracing on a
wenzelm@57452
  2594
per-constant basis.  See attribute "code_preproc".
haftmann@57430
  2595
wenzelm@55001
  2596
haftmann@54227
  2597
*** HOL ***
haftmann@54227
  2598
wenzelm@57504
  2599
* Code generator: enforce case of identifiers only for strict target
wenzelm@57504
  2600
language requirements.  INCOMPATIBILITY.
wenzelm@57504
  2601
wenzelm@57504
  2602
* Code generator: explicit proof contexts in many ML interfaces.
wenzelm@57504
  2603
INCOMPATIBILITY.
wenzelm@57504
  2604
wenzelm@57504
  2605
* Code generator: minimize exported identifiers by default.  Minor
wenzelm@57504
  2606
INCOMPATIBILITY.
wenzelm@57504
  2607
wenzelm@57504
  2608
* Code generation for SML and OCaml: dropped arcane "no_signatures"
wenzelm@57504
  2609
option.  Minor INCOMPATIBILITY.
wenzelm@57504
  2610
wenzelm@57504
  2611
* "declare [[code abort: ...]]" replaces "code_abort ...".
wenzelm@57504
  2612
INCOMPATIBILITY.
wenzelm@57504
  2613
wenzelm@57504
  2614
* "declare [[code drop: ...]]" drops all code equations associated
wenzelm@57504
  2615
with the given constants.
wenzelm@57504
  2616
wenzelm@57504
  2617
* Code generations are provided for make, fields, extend and truncate
wenzelm@57504
  2618
operations on records.
haftmann@57437
  2619
wenzelm@57452
  2620
* Command and antiquotation "value" are now hardcoded against nbe and
wenzelm@57452
  2621
ML.  Minor INCOMPATIBILITY.
wenzelm@57452
  2622
wenzelm@57504
  2623
* Renamed command 'enriched_type' to 'functor'. INCOMPATIBILITY.
wenzelm@57504
  2624
wenzelm@57504
  2625
* The symbol "\<newline>" may be used within char or string literals
wenzelm@57504
  2626
to represent (Char Nibble0 NibbleA), i.e. ASCII newline.
wenzelm@57504
  2627
wenzelm@57504
  2628
* Qualified String.implode and String.explode.  INCOMPATIBILITY.
haftmann@56923
  2629
wenzelm@57452
  2630
* Simplifier: Enhanced solver of preconditions of rewrite rules can
wenzelm@57452
  2631
now deal with conjunctions.  For help with converting proofs, the old
wenzelm@57452
  2632
behaviour of the simplifier can be restored like this: declare/using
wenzelm@57452
  2633
[[simp_legacy_precond]].  This configuration option will disappear
wenzelm@57452
  2634
again in the future.  INCOMPATIBILITY.
nipkow@56073
  2635
wenzelm@55139
  2636
* Simproc "finite_Collect" is no longer enabled by default, due to
wenzelm@55139
  2637
spurious crashes and other surprises.  Potential INCOMPATIBILITY.
wenzelm@55139
  2638
wenzelm@57452
  2639
* Moved new (co)datatype package and its dependencies from session
wenzelm@57452
  2640
  "HOL-BNF" to "HOL".  The commands 'bnf', 'wrap_free_constructors',
wenzelm@57452
  2641
  'datatype_new', 'codatatype', 'primcorec', 'primcorecursive' are now
wenzelm@57452
  2642
  part of theory "Main".
wenzelm@57452
  2643
blanchet@55098
  2644
  Theory renamings:
blanchet@55098
  2645
    FunDef.thy ~> Fun_Def.thy (and Fun_Def_Base.thy)
blanchet@55098
  2646
    Library/Wfrec.thy ~> Wfrec.thy
blanchet@55098
  2647
    Library/Zorn.thy ~> Zorn.thy
blanchet@55098
  2648
    Cardinals/Order_Relation.thy ~> Order_Relation.thy
blanchet@55098
  2649
    Library/Order_Union.thy ~> Cardinals/Order_Union.thy
blanchet@55098
  2650
    Cardinals/Cardinal_Arithmetic_Base.thy ~> BNF_Cardinal_Arithmetic.thy
blanchet@55098
  2651
    Cardinals/Cardinal_Order_Relation_Base.thy ~> BNF_Cardinal_Order_Relation.thy
blanchet@55098
  2652
    Cardinals/Constructions_on_Wellorders_Base.thy ~> BNF_Constructions_on_Wellorders.thy
blanchet@55098
  2653
    Cardinals/Wellorder_Embedding_Base.thy ~> BNF_Wellorder_Embedding.thy
blanchet@55098
  2654
    Cardinals/Wellorder_Relation_Base.thy ~> BNF_Wellorder_Relation.thy
blanchet@55098
  2655
    BNF/Ctr_Sugar.thy ~> Ctr_Sugar.thy
blanchet@55098
  2656
    BNF/Basic_BNFs.thy ~> Basic_BNFs.thy
blanchet@55098
  2657
    BNF/BNF_Comp.thy ~> BNF_Comp.thy
blanchet@55098
  2658
    BNF/BNF_Def.thy ~> BNF_Def.thy
blanchet@55098
  2659
    BNF/BNF_FP_Base.thy ~> BNF_FP_Base.thy
blanchet@55098
  2660
    BNF/BNF_GFP.thy ~> BNF_GFP.thy
blanchet@55098
  2661
    BNF/BNF_LFP.thy ~> BNF_LFP.thy
blanchet@55098
  2662
    BNF/BNF_Util.thy ~> BNF_Util.thy
blanchet@55098
  2663
    BNF/Coinduction.thy ~> Coinduction.thy
blanchet@55098
  2664
    BNF/More_BNFs.thy ~> Library/More_BNFs.thy
blanchet@55098
  2665
    BNF/Countable_Type.thy ~> Library/Countable_Set_Type.thy
blanchet@55098
  2666
    BNF/Examples/* ~> BNF_Examples/*
wenzelm@57452
  2667
blanchet@55098
  2668
  New theories:
blanchet@55098
  2669
    Wellorder_Extension.thy (split from Zorn.thy)
blanchet@55098
  2670
    Library/Cardinal_Notations.thy
traytel@56942
  2671
    Library/BNF_Axomatization.thy
blanchet@55098
  2672
    BNF_Examples/Misc_Primcorec.thy
blanchet@55098
  2673
    BNF_Examples/Stream_Processor.thy
wenzelm@57452
  2674
blanchet@55519
  2675
  Discontinued theories:
blanchet@55098
  2676
    BNF/BNF.thy
blanchet@55098
  2677
    BNF/Equiv_Relations_More.thy
wenzelm@57452
  2678
wenzelm@57452
  2679
INCOMPATIBILITY.
blanchet@55098
  2680
blanchet@56118
  2681
* New (co)datatype package:
wenzelm@57452
  2682
  - Command 'primcorec' is fully implemented.
wenzelm@57452
  2683
  - Command 'datatype_new' generates size functions ("size_xxx" and
wenzelm@57452
  2684
    "size") as required by 'fun'.
wenzelm@57452
  2685
  - BNFs are integrated with the Lifting tool and new-style
wenzelm@57452
  2686
    (co)datatypes with Transfer.
wenzelm@57452
  2687
  - Renamed commands:
blanchet@55875
  2688
      datatype_new_compat ~> datatype_compat
blanchet@55875
  2689
      primrec_new ~> primrec
blanchet@55875
  2690
      wrap_free_constructors ~> free_constructors
blanchet@55875
  2691
    INCOMPATIBILITY.
wenzelm@57452
  2692
  - The generated constants "xxx_case" and "xxx_rec" have been renamed
blanchet@55875
  2693
    "case_xxx" and "rec_xxx" (e.g., "prod_case" ~> "case_prod").
blanchet@55875
  2694
    INCOMPATIBILITY.
wenzelm@57452
  2695
  - The constant "xxx_(un)fold" and related theorems are no longer
wenzelm@57452
  2696
    generated.  Use "xxx_(co)rec" or define "xxx_(un)fold" manually
wenzelm@57452
  2697
    using "prim(co)rec".
blanchet@55875
  2698
    INCOMPATIBILITY.
wenzelm@57452
  2699
  - No discriminators are generated for nullary constructors by
wenzelm@57452
  2700
    default, eliminating the need for the odd "=:" syntax.
blanchet@57091
  2701
    INCOMPATIBILITY.
wenzelm@57452
  2702
  - No discriminators or selectors are generated by default by
blanchet@57094
  2703
    "datatype_new", unless custom names are specified or the new
blanchet@57094
  2704
    "discs_sels" option is passed.
blanchet@57094
  2705
    INCOMPATIBILITY.
blanchet@55875
  2706
blanchet@55643
  2707
* Old datatype package:
wenzelm@57452
  2708
  - The generated theorems "xxx.cases" and "xxx.recs" have been
wenzelm@57452
  2709
    renamed "xxx.case" and "xxx.rec" (e.g., "sum.cases" ->
wenzelm@57452
  2710
    "sum.case").  INCOMPATIBILITY.
wenzelm@57452
  2711
  - The generated constants "xxx_case", "xxx_rec", and "xxx_size" have
wenzelm@57452
  2712
    been renamed "case_xxx", "rec_xxx", and "size_xxx" (e.g.,
wenzelm@57452
  2713
    "prod_case" ~> "case_prod").  INCOMPATIBILITY.
wenzelm@57452
  2714
wenzelm@57452
  2715
* The types "'a list" and "'a option", their set and map functions,
wenzelm@57452
  2716
  their relators, and their selectors are now produced using the new
wenzelm@57452
  2717
  BNF-based datatype package.
wenzelm@57452
  2718
blanchet@55519
  2719
  Renamed constants:
blanchet@55519
  2720
    Option.set ~> set_option
blanchet@55519
  2721
    Option.map ~> map_option
blanchet@55525
  2722
    option_rel ~> rel_option
wenzelm@57452
  2723
blanchet@55519
  2724
  Renamed theorems:
blanchet@55585
  2725
    set_def ~> set_rec[abs_def]
blanchet@55519
  2726
    map_def ~> map_rec[abs_def]
blanchet@55519
  2727
    Option.map_def ~> map_option_case[abs_def] (