author  wenzelm 
Sun, 24 Jan 2016 12:33:09 +0100  
changeset 62235  3687c199e22b 
parent 62234  7cc9d7b822ae 
child 62237  167641f8b83a 
permissions  rwrr 
57491  1 
Isabelle NEWS  history of userrelevant changes 
2 
================================================= 

2553  3 

62114
a7cf464933f7
generate HTML version of NEWS, with proper symbol rendering;
wenzelm
parents:
62111
diff
changeset

4 
(Note: Isabelle/jEdit shows a treeview of the NEWS file in Sidekick.) 
60007  5 

60331  6 

62031  7 
New in Isabelle2016 (February 2016) 
62016  8 
 
60138  9 

61337  10 
*** General *** 
11 

62168
e97452d79102
Eisbach works for other objectlogics, e.g. Eisbach_FOL.thy;
wenzelm
parents:
62163
diff
changeset

12 
* Eisbach is now based on Pure instead of HOL. Objectslogics may import 
e97452d79102
Eisbach works for other objectlogics, e.g. Eisbach_FOL.thy;
wenzelm
parents:
62163
diff
changeset

13 
either the theory ~~/src/HOL/Eisbach/Eisbach (for HOL etc.) or 
e97452d79102
Eisbach works for other objectlogics, e.g. Eisbach_FOL.thy;
wenzelm
parents:
62163
diff
changeset

14 
~~/src/HOL/Eisbach/Eisbach_Old_Appl_Syntax (for FOL, ZF etc.). Note that 
e97452d79102
Eisbach works for other objectlogics, e.g. Eisbach_FOL.thy;
wenzelm
parents:
62163
diff
changeset

15 
the HOLEisbach session located in ~~/src/HOL/Eisbach/ contains further 
e97452d79102
Eisbach works for other objectlogics, e.g. Eisbach_FOL.thy;
wenzelm
parents:
62163
diff
changeset

16 
examples that do require HOL. 
e97452d79102
Eisbach works for other objectlogics, e.g. Eisbach_FOL.thy;
wenzelm
parents:
62163
diff
changeset

17 

62157  18 
* Better resource usage on all platforms (Linux, Windows, Mac OS X) for 
19 
both Isabelle/ML and Isabelle/Scala. Slightly reduced heap space usage. 

20 

62017  21 
* Former "xsymbols" syntax with Isabelle symbols is used by default, 
22 
without any special print mode. Important ASCII replacement syntax 

23 
remains available under print mode "ASCII", but less important syntax 

24 
has been removed (see below). 

25 

62109  26 
* Support for more arrow symbols, with rendering in LaTeX and Isabelle 
27 
fonts: \<Lleftarrow> \<Rrightarrow> \<longlongleftarrow> \<longlongrightarrow> \<longlonglongleftarrow> \<longlonglongrightarrow>. 

62017  28 

62108
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

29 
* Special notation \<struct> for the first implicit 'structure' in the 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

30 
context has been discontinued. Rare INCOMPATIBILITY, use explicit 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

31 
structure name instead, notably in indexed notation with blocksubscript 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

32 
(e.g. \<odot>\<^bsub>A\<^esub>). 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

33 

0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

34 
* The glyph for \<diamond> in the IsabelleText font now corresponds better to its 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

35 
counterpart \<box> as quantifierlike symbol. A small diamond is available as 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

36 
\<diamondop>; the old symbol \<struct> loses this rendering and any special 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

37 
meaning. 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

38 

62017  39 
* Syntax for formal comments " text" now also supports the symbolic 
40 
form "\<comment> text". Commandline tool "isabelle update_cartouches c" helps 

41 
to update old sources. 

42 

61337  43 
* Toplevel theorem statements have been simplified as follows: 
44 

45 
theorems ~> lemmas 

46 
schematic_lemma ~> schematic_goal 

47 
schematic_theorem ~> schematic_goal 

48 
schematic_corollary ~> schematic_goal 

49 

50 
Commandline tool "isabelle update_theorems" updates theory sources 

51 
accordingly. 

52 

61338  53 
* Toplevel theorem statement 'proposition' is another alias for 
54 
'theorem'. 

55 

62169  56 
* The old 'defs' command has been removed (legacy since Isabelle2014). 
57 
INCOMPATIBILITY, use regular 'definition' instead. Overloaded and/or 

58 
deferred definitions require a surrounding 'overloading' block. 

59 

61337  60 

60610
f52b4b0c10c4
improved scheduling for urgent tasks, using farm of replacement threads (may lead to factor 2 overloading, but CPUs are usually hyperthreaded);
wenzelm
parents:
60595
diff
changeset

61 
*** Prover IDE  Isabelle/Scala/jEdit *** 
f52b4b0c10c4
improved scheduling for urgent tasks, using farm of replacement threads (may lead to factor 2 overloading, but CPUs are usually hyperthreaded);
wenzelm
parents:
60595
diff
changeset

62 

60986  63 
* IDE support for the sourcelevel debugger of Poly/ML, to work with 
60984  64 
Isabelle/ML and official Standard ML. Configuration option "ML_debugger" 
65 
and commands 'ML_file_debug', 'ML_file_no_debug', 'SML_file_debug', 

66 
'SML_file_no_debug' control compilation of sources with debugging 

67 
information. The Debugger panel allows to set breakpoints (via context 

68 
menu), step through stopped threads, evaluate local ML expressions etc. 

69 
At least one Debugger view needs to be active to have any effect on the 

70 
running ML program. 

71 

61804  72 
* The State panel manages explicit proof state output, with dynamic 
73 
autoupdate according to cursor movement. Alternatively, the jEdit 

74 
action "isabelle.updatestate" (shortcut S+ENTER) triggers manual 

75 
update. 

61729  76 

77 
* The Output panel no longer shows proof state output by default, to 

78 
avoid GUI overcrowding. INCOMPATIBILITY, use the State panel instead or 

79 
enable option "editor_output_state". 

61215  80 

61804  81 
* The text overview column (status of errors, warnings etc.) is updated 
82 
asynchronously, leading to much better editor reactivity. Moreover, the 

83 
full document node content is taken into account. The width of the 

84 
column is scaled according to the main text area font, for improved 

85 
visibility. 

86 

87 
* The main text area no longer changes its color hue in outdated 

88 
situations. The text overview column takes over the role to indicate 

89 
unfinished edits in the PIDE pipeline. This avoids flashing text display 

90 
due to adhoc updates by auxiliary GUI components, such as the State 

91 
panel. 

92 

62017  93 
* Improved scheduling for urgent print tasks (e.g. command state output, 
94 
interactive queries) wrt. longrunning background tasks. 

95 

96 
* Completion of symbols via prefix of \<name> or \<^name> or \name is 

97 
always possible, independently of the language context. It is never 

98 
implicit: a popup will show up unconditionally. 

99 

100 
* Additional abbreviations for syntactic completion may be specified in 

101 
$ISABELLE_HOME/etc/abbrevs and $ISABELLE_HOME_USER/etc/abbrevs, with 

102 
support for simple templates using ASCII 007 (bell) as placeholder. 

103 

62234
7cc9d7b822ae
discontinued irregular abbrevs: ".o" counts as word, "+o", "*o", "o" are occasionally used as ASCII notation, "*o" is in conflict with "(*o" in comments;
wenzelm
parents:
62231
diff
changeset

104 
* Symbols \<oplus>, \<Oplus>, \<otimes>, \<Otimes>, \<odot>, \<Odot>, \<ominus>, \<oslash> no longer provide abbreviations for 
7cc9d7b822ae
discontinued irregular abbrevs: ".o" counts as word, "+o", "*o", "o" are occasionally used as ASCII notation, "*o" is in conflict with "(*o" in comments;
wenzelm
parents:
62231
diff
changeset

105 
completion like "+o", "*o", ".o" etc.  due to conflicts with other 
7cc9d7b822ae
discontinued irregular abbrevs: ".o" counts as word, "+o", "*o", "o" are occasionally used as ASCII notation, "*o" is in conflict with "(*o" in comments;
wenzelm
parents:
62231
diff
changeset

106 
ASCII syntax. INCOMPATIBILITY, use plain backslashcompletion or define 
7cc9d7b822ae
discontinued irregular abbrevs: ".o" counts as word, "+o", "*o", "o" are occasionally used as ASCII notation, "*o" is in conflict with "(*o" in comments;
wenzelm
parents:
62231
diff
changeset

107 
suitable abbreviations in $ISABELLE_HOME_USER/etc/abbrevs. 
7cc9d7b822ae
discontinued irregular abbrevs: ".o" counts as word, "+o", "*o", "o" are occasionally used as ASCII notation, "*o" is in conflict with "(*o" in comments;
wenzelm
parents:
62231
diff
changeset

108 

61483  109 
* Action "isabelleemph" (with keyboard shortcut C+e LEFT) controls 
110 
emphasized text style; the effect is visible in document output, not in 

111 
the editor. 

112 

113 
* Action "isabellereset" now uses keyboard shortcut C+e BACK_SPACE, 

114 
instead of former C+e LEFT. 

115 

61512
933463440449
more uniform commandline for "isabelle jedit" and the isabelle.Main app wrapper;
wenzelm
parents:
61501
diff
changeset

116 
* The commandline tool "isabelle jedit" and the isabelle.Main 
62027  117 
application wrapper treat the default $USER_HOME/Scratch.thy more 
61512
933463440449
more uniform commandline for "isabelle jedit" and the isabelle.Main app wrapper;
wenzelm
parents:
61501
diff
changeset

118 
uniformly, and allow the dummy file argument ":" to open an empty buffer 
933463440449
more uniform commandline for "isabelle jedit" and the isabelle.Main app wrapper;
wenzelm
parents:
61501
diff
changeset

119 
instead. 
933463440449
more uniform commandline for "isabelle jedit" and the isabelle.Main app wrapper;
wenzelm
parents:
61501
diff
changeset

120 

62017  121 
* New commandline tool "isabelle jedit_client" allows to connect to an 
122 
already running Isabelle/jEdit process. This achieves the effect of 

123 
singleinstance applications seen on common GUI desktops. 

124 

61530
82fc5a6231a2
back to traditional Metal as default, and thus evade current problems with Nimbus scrollbar slider;
wenzelm
parents:
61520
diff
changeset

125 
* The default lookandfeel for Linux is the traditional "Metal", which 
82fc5a6231a2
back to traditional Metal as default, and thus evade current problems with Nimbus scrollbar slider;
wenzelm
parents:
61520
diff
changeset

126 
works better with GUI scaling for very highresolution displays (e.g. 
82fc5a6231a2
back to traditional Metal as default, and thus evade current problems with Nimbus scrollbar slider;
wenzelm
parents:
61520
diff
changeset

127 
4K). Moreover, it is generally more robust than "Nimbus". 
82fc5a6231a2
back to traditional Metal as default, and thus evade current problems with Nimbus scrollbar slider;
wenzelm
parents:
61520
diff
changeset

128 

62163  129 
* Update to jedit5.3.0, with improved GUI scaling and support of 
130 
highresolution displays (e.g. 4K). 

131 

62034  132 
* The main Isabelle executable is managed as singleinstance Desktop 
133 
application uniformly on all platforms: Linux, Windows, Mac OS X. 

134 

60610
f52b4b0c10c4
improved scheduling for urgent tasks, using farm of replacement threads (may lead to factor 2 overloading, but CPUs are usually hyperthreaded);
wenzelm
parents:
60595
diff
changeset

135 

61405  136 
*** Document preparation *** 
137 

62017  138 
* Commands 'paragraph' and 'subparagraph' provide additional section 
139 
headings. Thus there are 6 levels of standard headings, as in HTML. 

140 

141 
* Command 'text_raw' has been clarified: input text is processed as in 

142 
'text' (with antiquotations and control symbols). The key difference is 

143 
the lack of the surrounding isabelle markup environment in output. 

144 

145 
* Text is structured in paragraphs and nested lists, using notation that 

146 
is similar to Markdown. The control symbols for list items are as 

147 
follows: 

148 

149 
\<^item> itemize 

150 
\<^enum> enumerate 

151 
\<^descr> description 

152 

61491
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

153 
* There is a new short form for antiquotations with a single argument 
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

154 
that is a cartouche: \<^name>\<open>...\<close> is equivalent to @{name \<open>...\<close>} and 
61595  155 
\<open>...\<close> without control symbol is equivalent to @{cartouche \<open>...\<close>}. 
156 
\<^name> without following cartouche is equivalent to @{name}. The 

61501  157 
standard Isabelle fonts provide glyphs to render important control 
158 
symbols, e.g. "\<^verbatim>", "\<^emph>", "\<^bold>". 

61491
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

159 

61595  160 
* Antiquotations @{noindent}, @{smallskip}, @{medskip}, @{bigskip} with 
161 
corresponding control symbols \<^noindent>, \<^smallskip>, \<^medskip>, \<^bigskip> specify spacing formally, using 

162 
standard LaTeX macros of the same names. 

163 

61491
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

164 
* Antiquotation @{cartouche} in Isabelle/Pure is the same as @{text}. 
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

165 
Consequently, \<open>...\<close> without any decoration prints literal quasiformal 
61492  166 
text. Commandline tool "isabelle update_cartouches t" helps to update 
167 
old sources, by approximative patching of the content of string and 

168 
cartouche tokens seen in theory sources. 

61491
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

169 

97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

170 
* The @{text} antiquotation now ignores the antiquotation option 
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

171 
"source". The given text content is output unconditionally, without any 
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

172 
surrounding quotes etc. Subtle INCOMPATIBILITY, put quotes into the 
61494  173 
argument where they are really intended, e.g. @{text \<open>"foo"\<close>}. Initial 
174 
or terminal spaces are ignored. 

61491
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

175 

62017  176 
* Antiquotations @{emph} and @{bold} output LaTeX source recursively, 
177 
adding appropriate text style markup. These may be used in the short 

178 
form \<^emph>\<open>...\<close> and \<^bold>\<open>...\<close>. 

179 

180 
* Document antiquotation @{footnote} outputs LaTeX source recursively, 

181 
marked as \footnote{}. This may be used in the short form \<^footnote>\<open>...\<close>. 

182 

183 
* Antiquotation @{verbatim [display]} supports option "indent". 

184 

185 
* Antiquotation @{theory_text} prints uninterpreted theory source text 

62231
25f4a9cd8b68
tuned markup, e.g. relevant for Rendering.tooltip;
wenzelm
parents:
62209
diff
changeset

186 
(Isar outer syntax with command keywords etc.). This may be used in the 
25f4a9cd8b68
tuned markup, e.g. relevant for Rendering.tooltip;
wenzelm
parents:
62209
diff
changeset

187 
short form \<^theory_text>\<open>...\<close>. @{theory_text [display]} supports option "indent". 
62017  188 

189 
* Antiquotation @{doc ENTRY} provides a reference to the given 

190 
documentation, with a hyperlink in the Prover IDE. 

191 

192 
* Antiquotations @{command}, @{method}, @{attribute} print checked 

193 
entities of the Isar language. 

194 

61471  195 
* HTML presentation uses the standard IsabelleText font and Unicode 
196 
rendering of Isabelle symbols like Isabelle/Scala/jEdit. The former 

61488  197 
print mode "HTML" loses its special meaning. 
61471  198 

61405  199 

60406  200 
*** Isar *** 
201 

62205  202 
* Local goals ('have', 'show', 'hence', 'thus') allow structured rule 
203 
statements like fixes/assumes/shows in theorem specifications, but the 

204 
notation is postfix with keywords 'if' (or 'when') and 'for'. For 

60555
51a6997b1384
support 'when' statement, which corresponds to 'presume';
wenzelm
parents:
60554
diff
changeset

205 
example: 
60414  206 

207 
have result: "C x y" 

208 
if "A x" and "B y" 

209 
for x :: 'a and y :: 'a 

210 
<proof> 

211 

60449  212 
The local assumptions are bound to the name "that". The result is 
213 
exported from context of the statement as usual. The above roughly 

60414  214 
corresponds to a raw proof block like this: 
215 

216 
{ 

217 
fix x :: 'a and y :: 'a 

60449  218 
assume that: "A x" "B y" 
60414  219 
have "C x y" <proof> 
220 
} 

221 
note result = this 

60406  222 

60555
51a6997b1384
support 'when' statement, which corresponds to 'presume';
wenzelm
parents:
60554
diff
changeset

223 
The keyword 'when' may be used instead of 'if', to indicate 'presume' 
51a6997b1384
support 'when' statement, which corresponds to 'presume';
wenzelm
parents:
60554
diff
changeset

224 
instead of 'assume' above. 
51a6997b1384
support 'when' statement, which corresponds to 'presume';
wenzelm
parents:
60554
diff
changeset

225 

61733  226 
* Assumptions ('assume', 'presume') allow structured rule statements 
227 
using 'if' and 'for', similar to 'have' etc. above. For example: 

61658  228 

229 
assume result: "C x y" 

230 
if "A x" and "B y" 

231 
for x :: 'a and y :: 'a 

232 

233 
This assumes "\<And>x y::'a. A x \<Longrightarrow> B y \<Longrightarrow> C x y" and produces a general 

234 
result as usual: "A ?x \<Longrightarrow> B ?y \<Longrightarrow> C ?x ?y". 

235 

236 
Vacuous quantification in assumptions is omitted, i.e. a forcontext 

237 
only effects propositions according to actual use of variables. For 

238 
example: 

239 

240 
assume "A x" and "B y" for x and y 

241 

242 
is equivalent to: 

243 

244 
assume "\<And>x. A x" and "\<And>y. B y" 

245 

60595  246 
* The meaning of 'show' with Pure rule statements has changed: premises 
247 
are treated in the sense of 'assume', instead of 'presume'. This means, 

62205  248 
a goal like "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" can be solved completely as 
249 
follows: 

60595  250 

251 
show "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" 

252 

253 
or: 

254 

255 
show "C x" if "A x" "B x" for x 

256 

257 
Rare INCOMPATIBILITY, the old behaviour may be recovered as follows: 

258 

259 
show "C x" when "A x" "B x" for x 

260 

60459  261 
* New command 'consider' states rules for generalized elimination and 
262 
case splitting. This is like a toplevel statement "theorem obtains" used 

263 
within a proof body; or like a multibranch 'obtain' without activation 

264 
of the local context elements yet. 

265 

60455  266 
* Proof method "cases" allows to specify the rule as first entry of 
267 
chained facts. This is particularly useful with 'consider': 

268 

269 
consider (a) A  (b) B  (c) C <proof> 

270 
then have something 

271 
proof cases 

272 
case a 

273 
then show ?thesis <proof> 

274 
next 

275 
case b 

276 
then show ?thesis <proof> 

277 
next 

278 
case c 

279 
then show ?thesis <proof> 

280 
qed 

281 

60565  282 
* Command 'case' allows fact name and attribute specification like this: 
283 

284 
case a: (c xs) 

285 
case a [attributes]: (c xs) 

286 

287 
Facts that are introduced by invoking the case context are uniformly 

288 
qualified by "a"; the same name is used for the cumulative fact. The old 

289 
form "case (c xs) [attributes]" is no longer supported. Rare 

290 
INCOMPATIBILITY, need to adapt uses of case facts in exotic situations, 

291 
and always put attributes in front. 

292 

60618
4c79543cc376
renamed "default" to "standard", to make semantically clear what it is;
wenzelm
parents:
60617
diff
changeset

293 
* The standard proof method of commands 'proof' and '..' is now called 
4c79543cc376
renamed "default" to "standard", to make semantically clear what it is;
wenzelm
parents:
60617
diff
changeset

294 
"standard" to make semantically clear what it is; the old name "default" 
4c79543cc376
renamed "default" to "standard", to make semantically clear what it is;
wenzelm
parents:
60617
diff
changeset

295 
is still available as legacy for some time. Documentation now explains 
4c79543cc376
renamed "default" to "standard", to make semantically clear what it is;
wenzelm
parents:
60617
diff
changeset

296 
'..' more accurately as "by standard" instead of "by rule". 
4c79543cc376
renamed "default" to "standard", to make semantically clear what it is;
wenzelm
parents:
60617
diff
changeset

297 

62017  298 
* Nesting of Isar goal structure has been clarified: the context after 
299 
the initial backwards refinement is retained for the whole proof, within 

300 
all its context sections (as indicated via 'next'). This is e.g. 

301 
relevant for 'using', 'including', 'supply': 

302 

303 
have "A \<and> A" if a: A for A 

304 
supply [simp] = a 

305 
proof 

306 
show A by simp 

307 
next 

308 
show A by simp 

309 
qed 

310 

311 
* Command 'obtain' binds term abbreviations (via 'is' patterns) in the 

312 
proof body as well, abstracted over relevant parameters. 

313 

314 
* Improved typeinference for theorem statement 'obtains': separate 

315 
parameter scope for of each clause. 

316 

317 
* Term abbreviations via 'is' patterns also work for schematic 

318 
statements: result is abstracted over unknowns. 

319 

60631  320 
* Command 'subgoal' allows to impose some structure on backward 
321 
refinements, to avoid proof scripts degenerating into long of 'apply' 

322 
sequences. Further explanations and examples are given in the isarref 

323 
manual. 

324 

62017  325 
* Command 'supply' supports fact definitions during goal refinement 
326 
('apply' scripts). 

327 

61166
5976fe402824
renamed method "goals" to "goal_cases" to emphasize its meaning;
wenzelm
parents:
61158
diff
changeset

328 
* Proof method "goal_cases" turns the current subgoals into cases within 
5976fe402824
renamed method "goals" to "goal_cases" to emphasize its meaning;
wenzelm
parents:
61158
diff
changeset

329 
the context; the conclusion is bound to variable ?case in each case. For 
5976fe402824
renamed method "goals" to "goal_cases" to emphasize its meaning;
wenzelm
parents:
61158
diff
changeset

330 
example: 
60617  331 

332 
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" 

60622  333 
and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z" 
61166
5976fe402824
renamed method "goals" to "goal_cases" to emphasize its meaning;
wenzelm
parents:
61158
diff
changeset

334 
proof goal_cases 
60622  335 
case (1 x) 
336 
then show ?case using \<open>A x\<close> \<open>B x\<close> sorry 

337 
next 

338 
case (2 y z) 

339 
then show ?case using \<open>U y\<close> \<open>V z\<close> sorry 

340 
qed 

341 

342 
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" 

343 
and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z" 

61166
5976fe402824
renamed method "goals" to "goal_cases" to emphasize its meaning;
wenzelm
parents:
61158
diff
changeset

344 
proof goal_cases 
60617  345 
case prems: 1 
346 
then show ?case using prems sorry 

347 
next 

348 
case prems: 2 

349 
then show ?case using prems sorry 

350 
qed 

60578  351 

60581  352 
* The undocumented feature of implicit cases goal1, goal2, goal3, etc. 
60617  353 
is marked as legacy, and will be removed eventually. The proof method 
354 
"goals" achieves a similar effect within regular Isar; often it can be 

355 
done more adequately by other means (e.g. 'consider'). 

60581  356 

62017  357 
* The vacuous fact "TERM x" may be established "by fact" or as `TERM x` 
358 
as well, not just "by this" or "." as before. 

60551  359 

60554  360 
* Method "sleep" succeeds after a realtime delay (in seconds). This is 
361 
occasionally useful for demonstration and testing purposes. 

362 

60406  363 

60331  364 
*** Pure *** 
365 

61606
6d5213bd9709
uniform mandatory qualifier for all locale expressions, including 'statespace' parent;
wenzelm
parents:
61604
diff
changeset

366 
* Qualifiers in locale expressions default to mandatory ('!') regardless 
6d5213bd9709
uniform mandatory qualifier for all locale expressions, including 'statespace' parent;
wenzelm
parents:
61604
diff
changeset

367 
of the command. Previously, for 'locale' and 'sublocale' the default was 
6d5213bd9709
uniform mandatory qualifier for all locale expressions, including 'statespace' parent;
wenzelm
parents:
61604
diff
changeset

368 
optional ('?'). The old synatx '!' has been discontinued. 
6d5213bd9709
uniform mandatory qualifier for all locale expressions, including 'statespace' parent;
wenzelm
parents:
61604
diff
changeset

369 
INCOMPATIBILITY, remove '!' and add '?' as required. 
61565
352c73a689da
Qualifiers in locale expressions default to mandatory regardless of the command.
ballarin
parents:
61552
diff
changeset

370 

61566
c3d6e570ccef
Keyword 'rewrites' identifies rewrite morphisms.
ballarin
parents:
61565
diff
changeset

371 
* Keyword 'rewrites' identifies rewrite morphisms in interpretation 
62017  372 
commands. Previously, the keyword was 'where'. INCOMPATIBILITY. 
61566
c3d6e570ccef
Keyword 'rewrites' identifies rewrite morphisms.
ballarin
parents:
61565
diff
changeset

373 

61701
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

374 
* More gentle suppression of syntax along locale morphisms while 
62017  375 
printing terms. Previously 'abbreviation' and 'notation' declarations 
376 
would be suppressed for morphisms except term identity. Now 

61701
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

377 
'abbreviation' is also kept for morphims that only change the involved 
62017  378 
parameters, and only 'notation' is suppressed. This can be of great help 
379 
when working with complex locale hierarchies, because proof states are 

380 
displayed much more succinctly. It also means that only notation needs 

381 
to be redeclared if desired, as illustrated by this example: 

61701
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

382 

e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

383 
locale struct = fixes composition :: "'a => 'a => 'a" (infixl "\<cdot>" 65) 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

384 
begin 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

385 
definition derived (infixl "\<odot>" 65) where ... 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

386 
end 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

387 

e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

388 
locale morphism = 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

389 
left: struct composition + right: struct composition' 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

390 
for composition (infix "\<cdot>" 65) and composition' (infix "\<cdot>''" 65) 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

391 
begin 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

392 
notation right.derived ("\<odot>''") 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

393 
end 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

394 

61895  395 
* Command 'global_interpretation' issues interpretations into global 
396 
theories, with optional rewrite definitions following keyword 'defines'. 

397 

398 
* Command 'sublocale' accepts optional rewrite definitions after keyword 

61675  399 
'defines'. 
400 

61895  401 
* Command 'permanent_interpretation' has been discontinued. Use 
402 
'global_interpretation' or 'sublocale' instead. INCOMPATIBILITY. 

61670
301e0b4ecd45
coalesce permanent_interpretation.ML with interpretation.ML
haftmann
parents:
61660
diff
changeset

403 

61252  404 
* Command 'print_definitions' prints dependencies of definitional 
405 
specifications. This functionality used to be part of 'print_theory'. 

406 

60331  407 
* Configuration option rule_insts_schematic has been discontinued 
62017  408 
(intermediate legacy feature in Isabelle2015). INCOMPATIBILITY. 
60331  409 

62205  410 
* Abbreviations in type classes now carry proper sort constraint. Rare 
411 
INCOMPATIBILITY in situations where the previous misbehaviour has been 

412 
exploited. 

60349  413 

414 
* Refinement of userspace type system in type classes: pseudolocal 

62205  415 
operations behave more similar to abbreviations. Potential 
60349  416 
INCOMPATIBILITY in exotic situations. 
417 

418 

60171  419 
*** HOL *** 
420 

62017  421 
* The 'typedef' command has been upgraded from a partially checked 
422 
"axiomatization", to a full definitional specification that takes the 

423 
global collection of overloaded constant / type definitions into 

424 
account. Type definitions with open dependencies on overloaded 

425 
definitions need to be specified as "typedef (overloaded)". This 

426 
provides extra robustness in theory construction. Rare INCOMPATIBILITY. 

427 

428 
* Qualification of various formal entities in the libraries is done more 

429 
uniformly via "context begin qualified definition ... end" instead of 

430 
oldstyle "hide_const (open) ...". Consequently, both the defined 

431 
constant and its defining fact become qualified, e.g. Option.is_none and 

432 
Option.is_none_def. Occasional INCOMPATIBILITY in applications. 

433 

434 
* Some old and rarely used ASCII replacement syntax has been removed. 

435 
INCOMPATIBILITY, standard syntax with symbols should be used instead. 

436 
The subsequent commands help to reproduce the old forms, e.g. to 

437 
simplify porting old theories: 

438 

439 
notation iff (infixr "<>" 25) 

440 

441 
notation Times (infixr "<*>" 80) 

442 

443 
type_notation Map.map (infixr "~=>" 0) 

444 
notation Map.map_comp (infixl "o'_m" 55) 

445 

446 
type_notation FinFun.finfun ("(_ =>f /_)" [22, 21] 21) 

447 

448 
notation FuncSet.funcset (infixr ">" 60) 

449 
notation FuncSet.extensional_funcset (infixr ">\<^sub>E" 60) 

450 

451 
notation Omega_Words_Fun.conc (infixr "conc" 65) 

452 

453 
notation Preorder.equiv ("op ~~") 

454 
and Preorder.equiv ("(_/ ~~ _)" [51, 51] 50) 

455 

456 
notation (in topological_space) tendsto (infixr ">" 55) 

457 
notation (in topological_space) LIMSEQ ("((_)/ > (_))" [60, 60] 60) 

458 
notation LIM ("((_)/  (_)/ > (_))" [60, 0, 60] 60) 

459 

460 
notation NSA.approx (infixl "@=" 50) 

461 
notation NSLIMSEQ ("((_)/ NS> (_))" [60, 60] 60) 

462 
notation NSLIM ("((_)/  (_)/ NS> (_))" [60, 0, 60] 60) 

463 

464 
* The alternative notation "\<Colon>" for type and sort constraints has been 

465 
removed: in LaTeX document output it looks the same as "::". 

466 
INCOMPATIBILITY, use plain "::" instead. 

467 

468 
* Commands 'inductive' and 'inductive_set' work better when names for 

469 
intro rules are omitted: the "cases" and "induct" rules no longer 

470 
declare empty case_names, but no case_names at all. This allows to use 

471 
numbered cases in proofs, without requiring method "goal_cases". 

472 

473 
* Inductive definitions ('inductive', 'coinductive', etc.) expose 

474 
lowlevel facts of the internal construction only if the option 

62093  475 
"inductive_internals" is enabled. This refers to the internal predicate 
62017  476 
definition and its monotonicity result. Rare INCOMPATIBILITY. 
477 

478 
* Recursive function definitions ('fun', 'function', 'partial_function') 

479 
expose lowlevel facts of the internal construction only if the option 

62205  480 
"function_internals" is enabled. Its internal inductive definition is 
481 
also subject to "inductive_internals". Rare INCOMPATIBILITY. 

62093  482 

483 
* BNF datatypes ('datatype', 'codatatype', etc.) expose lowlevel facts 

484 
of the internal construction only if the option "bnf_internals" is 

485 
enabled. This supersedes the former option "bnf_note_all". Rare 

486 
INCOMPATIBILITY. 

62017  487 

488 
* Combinator to represent case distinction on products is named 

489 
"case_prod", uniformly, discontinuing any input aliasses. Very popular 

490 
theorem aliasses have been retained. 

491 

61424
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

492 
Consolidated facts: 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

493 
PairE ~> prod.exhaust 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

494 
Pair_eq ~> prod.inject 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

495 
pair_collapse ~> prod.collapse 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

496 
Pair_fst_snd_eq ~> prod_eq_iff 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

497 
split_twice ~> prod.case_distrib 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

498 
split_weak_cong ~> prod.case_cong_weak 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

499 
split_split ~> prod.split 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

500 
split_split_asm ~> prod.split_asm 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

501 
splitI ~> case_prodI 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

502 
splitD ~> case_prodD 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

503 
splitI2 ~> case_prodI2 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

504 
splitI2' ~> case_prodI2' 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

505 
splitE ~> case_prodE 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

506 
splitE' ~> case_prodE' 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

507 
split_pair ~> case_prod_Pair 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

508 
split_eta ~> case_prod_eta 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

509 
split_comp ~> case_prod_comp 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

510 
mem_splitI ~> mem_case_prodI 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

511 
mem_splitI2 ~> mem_case_prodI2 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

512 
mem_splitE ~> mem_case_prodE 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

513 
The_split ~> The_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

514 
cond_split_eta ~> cond_case_prod_eta 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

515 
Collect_split_in_rel_leE ~> Collect_case_prod_in_rel_leE 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

516 
Collect_split_in_rel_leI ~> Collect_case_prod_in_rel_leI 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

517 
in_rel_Collect_split_eq ~> in_rel_Collect_case_prod_eq 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

518 
Collect_split_Grp_eqD ~> Collect_case_prod_Grp_eqD 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

519 
Collect_split_Grp_inD ~> Collect_case_prod_Grp_in 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

520 
Domain_Collect_split ~> Domain_Collect_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

521 
Image_Collect_split ~> Image_Collect_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

522 
Range_Collect_split ~> Range_Collect_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

523 
Eps_split ~> Eps_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

524 
Eps_split_eq ~> Eps_case_prod_eq 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

525 
split_rsp ~> case_prod_rsp 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

526 
curry_split ~> curry_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

527 
split_curry ~> case_prod_curry 
62017  528 

61424
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

529 
Changes in structure HOLogic: 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

530 
split_const ~> case_prod_const 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

531 
mk_split ~> mk_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

532 
mk_psplits ~> mk_ptupleabs 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

533 
strip_psplits ~> strip_ptupleabs 
62017  534 

535 
INCOMPATIBILITY. 

536 

537 
* The coercions to type 'real' have been reorganised. The function 

538 
'real' is no longer overloaded, but has type 'nat => real' and 

539 
abbreviates of_nat for that type. Also 'real_of_int :: int => real' 

540 
abbreviates of_int for that type. Other overloaded instances of 'real' 

541 
have been replaced by 'real_of_ereal' and 'real_of_float'. 

542 

61694
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

543 
Consolidated facts (among others): 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

544 
real_of_nat_le_iff > of_nat_le_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

545 
real_of_nat_numeral of_nat_numeral 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

546 
real_of_int_zero of_int_0 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

547 
real_of_nat_zero of_nat_0 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

548 
real_of_one of_int_1 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

549 
real_of_int_add of_int_add 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

550 
real_of_nat_add of_nat_add 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

551 
real_of_int_diff of_int_diff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

552 
real_of_nat_diff of_nat_diff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

553 
floor_subtract floor_diff_of_int 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

554 
real_of_int_inject of_int_eq_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

555 
real_of_int_gt_zero_cancel_iff of_int_0_less_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

556 
real_of_int_ge_zero_cancel_iff of_int_0_le_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

557 
real_of_nat_ge_zero of_nat_0_le_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

558 
real_of_int_ceiling_ge le_of_int_ceiling 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

559 
ceiling_less_eq ceiling_less_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

560 
ceiling_le_eq ceiling_le_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

561 
less_floor_eq less_floor_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

562 
floor_less_eq floor_less_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

563 
floor_divide_eq_div floor_divide_of_int_eq 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

564 
real_of_int_zero_cancel of_nat_eq_0_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

565 
ceiling_real_of_int ceiling_of_int 
62017  566 

567 
INCOMPATIBILITY. 

61143  568 

60841  569 
* Theory Map: lemma map_of_is_SomeD was a clone of map_of_SomeD and has 
570 
been removed. INCOMPATIBILITY. 

571 

60712
3ba16d28449d
Quickcheck setup for finite sets
Lars Hupel <lars.hupel@mytum.de>
parents:
60707
diff
changeset

572 
* Quickcheck setup for finite sets. 
3ba16d28449d
Quickcheck setup for finite sets
Lars Hupel <lars.hupel@mytum.de>
parents:
60707
diff
changeset

573 

60171  574 
* Discontinued simp_legacy_precond. Potential INCOMPATIBILITY. 
60138  575 

60306
6b7c64ab8bd2
made Auto Sledgehammer behave more like the real thing
blanchet
parents:
60301
diff
changeset

576 
* Sledgehammer: 
61318  577 
 The MaSh relevance filter has been sped up. 
60306
6b7c64ab8bd2
made Auto Sledgehammer behave more like the real thing
blanchet
parents:
60301
diff
changeset

578 
 Proof reconstruction has been improved, to minimize the incidence of 
6b7c64ab8bd2
made Auto Sledgehammer behave more like the real thing
blanchet
parents:
60301
diff
changeset

579 
cases where Sledgehammer gives a proof that does not work. 
6b7c64ab8bd2
made Auto Sledgehammer behave more like the real thing
blanchet
parents:
60301
diff
changeset

580 
 Auto Sledgehammer now minimizes and preplays the results. 
61030  581 
 Handle Vampire 4.0 proof output without raising exception. 
61043  582 
 Eliminated "MASH" environment variable. Use the "MaSh" option in 
583 
Isabelle/jEdit instead. INCOMPATIBILITY. 

61317  584 
 Eliminated obsolete "blocking" option and related subcommands. 
60306
6b7c64ab8bd2
made Auto Sledgehammer behave more like the real thing
blanchet
parents:
60301
diff
changeset

585 

60310  586 
* Nitpick: 
61325
1cfc476198c9
avoid too aggressive optimization of 'finite' predicate
blanchet
parents:
61324
diff
changeset

587 
 Fixed soundness bug in translation of "finite" predicate. 
61324
d4ec7594f558
avoid unsound simplification of (C (s x)) when s is a selector but not C's
blanchet
parents:
61318
diff
changeset

588 
 Fixed soundness bug in "destroy_constrs" optimization. 
62080  589 
 Fixed soundness bug in translation of "rat" type. 
60310  590 
 Removed "check_potential" and "check_genuine" options. 
61317  591 
 Eliminated obsolete "blocking" option. 
60310  592 

62027  593 
* (Co)datatype package: 
61345  594 
 New commands "lift_bnf" and "copy_bnf" for lifting (copying) a BNF 
595 
structure on the raw type to an abstract type defined using typedef. 

596 
 Always generate "case_transfer" theorem. 

62235  597 
 For mutual types, generate slightly stronger "rel_induct", 
598 
"rel_coinduct", and "coinduct" theorems. INCOMPATIBLITY. 

61552  599 
 Allow discriminators and selectors with the same name as the type 
600 
being defined. 

601 
 Avoid various internal name clashes (e.g., 'datatype f = f'). 

60920  602 

62098  603 
* Transfer: new methods for interactive debugging of 'transfer' and 
604 
'transfer_prover': 'transfer_start', 'transfer_step', 'transfer_end', 

605 
'transfer_prover_start' and 'transfer_prover_end'. 

61370  606 

62118  607 
* New diagnostic command print_record for displaying record definitions. 
608 

60868
dd18c33c001e
direct bootstrap of integer division from natural division
haftmann
parents:
60841
diff
changeset

609 
* Division on integers is bootstrapped directly from division on 
62017  610 
naturals and uses generic numeral algorithm for computations. Slight 
611 
INCOMPATIBILITY, simproc numeral_divmod replaces and generalizes former 

612 
simprocs binary_int_div and binary_int_mod 

613 

614 
* Tightened specification of class semiring_no_zero_divisors. Minor 

60516
0826b7025d07
generalized some theorems about integral domains and moved to HOL theories
haftmann
parents:
60515
diff
changeset

615 
INCOMPATIBILITY. 
0826b7025d07
generalized some theorems about integral domains and moved to HOL theories
haftmann
parents:
60515
diff
changeset

616 

60688
01488b559910
avoid explicit definition of the relation of associated elements in a ring  prefer explicit normalization instead
haftmann
parents:
60642
diff
changeset

617 
* Class algebraic_semidom introduces common algebraic notions of 
62017  618 
integral (semi)domains, particularly units. Although logically subsumed 
619 
by fields, is is not a super class of these in order not to burden 

620 
fields with notions that are trivial there. 

621 

622 
* Class normalization_semidom specifies canonical representants for 

623 
equivalence classes of associated elements in an integral (semi)domain. 

624 
This formalizes associated elements as well. 

60688
01488b559910
avoid explicit definition of the relation of associated elements in a ring  prefer explicit normalization instead
haftmann
parents:
60642
diff
changeset

625 

01488b559910
avoid explicit definition of the relation of associated elements in a ring  prefer explicit normalization instead
haftmann
parents:
60642
diff
changeset

626 
* Abstract specification of gcd/lcm operations in classes semiring_gcd, 
62017  627 
semiring_Gcd, semiring_Lcd. Minor INCOMPATIBILITY: facts gcd_nat.commute 
628 
and gcd_int.commute are subsumed by gcd.commute, as well as 

629 
gcd_nat.assoc and gcd_int.assoc by gcd.assoc. 

630 

631 
* Former constants Fields.divide (_ / _) and Divides.div (_ div _) are 

632 
logically unified to Rings.divide in syntactic type class Rings.divide, 

633 
with infix syntax (_ div _). Infix syntax (_ / _) for field division is 

634 
added later as abbreviation in class Fields.inverse. INCOMPATIBILITY, 

635 
instantiations must refer to Rings.divide rather than the former 

636 
separate constants, hence infix syntax (_ / _) is usually not available 

637 
during instantiation. 

638 

639 
* New cancellation simprocs for boolean algebras to cancel complementary 

640 
terms for sup and inf. For example, "sup x (sup y ( x))" simplifies to 

641 
"top". INCOMPATIBILITY. 

61628
90f54d9e63f2
cancel complementary terms as arguments to sup/inf in boolean algebras
Andreas Lochbihler
parents:
61623
diff
changeset

642 

62101  643 
* Class uniform_space introduces uniform spaces btw topological spaces 
644 
and metric spaces. Minor INCOMPATIBILITY: open_<type>_def needs to be 

62205  645 
introduced in the form of an uniformity. Some constants are more general 
646 
now, it may be necessary to add type class constraints. 

62101  647 

648 
open_real_def \<leadsto> open_dist 

649 
open_complex_def \<leadsto> open_dist 

650 

62026  651 
* Library/Monad_Syntax: notation uses symbols \<bind> and \<then>. INCOMPATIBILITY. 
652 

60397
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

653 
* Library/Multiset: 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

654 
 Renamed multiset inclusion operators: 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

655 
< ~> <# 
62208
ad43b3ab06e4
added 'supset' variants for new '<#' etc. symbols on multisets
blanchet
parents:
62205
diff
changeset

656 
> ~> ># 
60397
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

657 
<= ~> <=# 
62208
ad43b3ab06e4
added 'supset' variants for new '<#' etc. symbols on multisets
blanchet
parents:
62205
diff
changeset

658 
>= ~> >=# 
60397
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

659 
\<le> ~> \<le># 
62208
ad43b3ab06e4
added 'supset' variants for new '<#' etc. symbols on multisets
blanchet
parents:
62205
diff
changeset

660 
\<ge> ~> \<ge># 
60397
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

661 
INCOMPATIBILITY. 
62209  662 
 Added multiset inclusion operator syntax: 
663 
\<subset># 

664 
\<subseteq># 

665 
\<supset># 

666 
\<supseteq># 

60397
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

667 
 "'a multiset" is no longer an instance of the "order", 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

668 
"ordered_ab_semigroup_add_imp_le", "ordered_cancel_comm_monoid_diff", 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

669 
"semilattice_inf", and "semilattice_sup" type classes. The theorems 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

670 
previously provided by these type classes (directly or indirectly) 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

671 
are now available through the "subset_mset" interpretation 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

672 
(e.g. add_mono ~> subset_mset.add_mono). 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

673 
INCOMPATIBILITY. 
60497  674 
 Renamed conversions: 
60515  675 
multiset_of ~> mset 
676 
multiset_of_set ~> mset_set 

60497  677 
set_of ~> set_mset 
678 
INCOMPATIBILITY 

60398  679 
 Renamed lemmas: 
680 
mset_le_def ~> subseteq_mset_def 

681 
mset_less_def ~> subset_mset_def 

60400  682 
less_eq_multiset.rep_eq ~> subseteq_mset_def 
683 
INCOMPATIBILITY 

684 
 Removed lemmas generated by lift_definition: 

62235  685 
less_eq_multiset.abs_eq, less_eq_multiset.rsp, 
686 
less_eq_multiset.transfer, less_eq_multiset_def 

60400  687 
INCOMPATIBILITY 
60007  688 

62017  689 
* Library/Omega_Words_Fun: Infinite words modeled as functions nat \<Rightarrow> 'a. 
690 

691 
* Library/Bourbaki_Witt_Fixpoint: Added formalisation of the 

692 
BourbakiWitt fixpoint theorem for increasing functions in 

693 
chaincomplete partial orders. 

694 

695 
* Library/Old_Recdef: discontinued obsolete 'defer_recdef' command. 

696 
Minor INCOMPATIBILITY, use 'function' instead. 

697 

62065  698 
* Library/Periodic_Fun: a locale that provides convenient lemmas for 
699 
periodic functions. 

62060
b75764fc4c35
Added summability/Gamma/etc. to NEWS and CONTRIBUTORS
eberlm
parents:
62034
diff
changeset

700 

62098  701 
* Library/Formal_Power_Series: proper definition of division (with 
702 
remainder) for formal power series; instances for Euclidean Ring and 

703 
GCD. 

62086
1c0246456ab9
Added formal power series updates to NEWS/CONTRIBUTORS
Manuel Eberl <eberlm@in.tum.de>
parents:
62084
diff
changeset

704 

62084  705 
* HOLImperative_HOL: obsolete theory Legacy_Mrec has been removed. 
706 

707 
* HOLStatespace: command 'statespace' uses mandatory qualifier for 

708 
import of parent, as for general 'locale' expressions. INCOMPATIBILITY, 

709 
remove '!' and add '?' as required. 

710 

711 
* HOLMultivariate_Analysis: theory Cauchy_Integral_Thm with Contour 

712 
integrals (= complex path integrals), Cauchy's integral theorem, winding 

713 
numbers and Cauchy's integral formula, Liouville theorem, Fundamental 

714 
Theorem of Algebra. Ported from HOL Light. 

715 

716 
* HOLMultivariate_Analysis: topological concepts such as connected 

62017  717 
components, homotopic paths and the inside or outside of a set. 
61121
efe8b18306b7
do not expose lowlevel "_def" facts of 'function' definitions, to avoid potential confusion with the situation of plain 'definition';
wenzelm
parents:
61119
diff
changeset

718 

62084  719 
* HOLMultivariate_Analysis: radius of convergence of power series and 
62065  720 
various summability tests; Harmonic numbers and the Euler–Mascheroni 
721 
constant; the Generalised Binomial Theorem; the complex and real 

722 
Gamma/logGamma/Digamma/ Polygamma functions and their most important 

723 
properties. 

62060
b75764fc4c35
Added summability/Gamma/etc. to NEWS and CONTRIBUTORS
eberlm
parents:
62034
diff
changeset

724 

62084  725 
* HOLProbability: The central limit theorem based on Levy's uniqueness 
726 
and continuity theorems, weak convergence, and characterisitc functions. 

727 

728 
* HOLData_Structures: new and growing session of standard data 

729 
structures. 

61178
0b071f72f330
Omega_Words_Fun: Infinite words as functions from nat.
lammich <lammich@in.tum.de>
parents:
61174
diff
changeset

730 

60479  731 

60793  732 
*** ML *** 
733 

62017  734 
* The following combinators for lowlevel profiling of the ML runtime 
735 
system are available: 

736 

737 
profile_time (*CPU time*) 

738 
profile_time_thread (*CPU time on this thread*) 

739 
profile_allocations (*overall heap allocations*) 

740 

741 
* Antiquotation @{undefined} or \<^undefined> inlines (raise Match). 

742 

62075  743 
* Antiquotation @{method NAME} inlines the (checked) name of the given 
744 
Isar proof method. 

745 

61922  746 
* Pretty printing of Poly/ML compiler output in Isabelle has been 
747 
improved: proper treatment of break offsets and blocks with consistent 

748 
breaks. 

749 

61268  750 
* The auxiliary module Pure/display.ML has been eliminated. Its 
751 
elementary thm print operations are now in Pure/more_thm.ML and thus 

752 
called Thm.pretty_thm, Thm.string_of_thm etc. INCOMPATIBILITY. 

753 

61144  754 
* Simproc programming interfaces have been simplified: 
755 
Simplifier.make_simproc and Simplifier.define_simproc supersede various 

756 
forms of Simplifier.mk_simproc, Simplifier.simproc_global etc. Note that 

757 
term patterns for the lefthand sides are specified with implicitly 

758 
fixed variables, like toplevel theorem statements. INCOMPATIBILITY. 

759 

60802  760 
* Instantiation rules have been reorganized as follows: 
761 

762 
Thm.instantiate (*lowlevel instantiation with named arguments*) 

763 
Thm.instantiate' (*version with positional arguments*) 

764 

765 
Drule.infer_instantiate (*instantiation with type inference*) 

766 
Drule.infer_instantiate' (*version with positional arguments*) 

767 

768 
The LHS only requires variable specifications, instead of full terms. 

769 
Old cterm_instantiate is superseded by infer_instantiate. 

770 
INCOMPATIBILITY, need to readjust some ML names and types accordingly. 

771 

60793  772 
* Old tactic shorthands atac, rtac, etac, dtac, ftac have been 
773 
discontinued. INCOMPATIBILITY, use regular assume_tac, resolve_tac etc. 

774 
instead (with proper context). 

60642
48dd1cefb4ae
simplified Thm.instantiate and derivatives: the LHS refers to noncertified variables  this merely serves as index into already certified structures (or is ignored);
wenzelm
parents:
60631
diff
changeset

775 

48dd1cefb4ae
simplified Thm.instantiate and derivatives: the LHS refers to noncertified variables  this merely serves as index into already certified structures (or is ignored);
wenzelm
parents:
60631
diff
changeset

776 
* Thm.instantiate (and derivatives) no longer require the LHS of the 
48dd1cefb4ae
simplified Thm.instantiate and derivatives: the LHS refers to noncertified variables  this merely serves as index into already certified structures (or is ignored);
wenzelm
parents:
60631
diff
changeset

777 
instantiation to be certified: plain variables are given directly. 
48dd1cefb4ae
simplified Thm.instantiate and derivatives: the LHS refers to noncertified variables  this merely serves as index into already certified structures (or is ignored);
wenzelm
parents:
60631
diff
changeset

778 

60707
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

779 
* Subgoal.SUBPROOF and Subgoal.FOCUS combinators use anonymous 
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

780 
quasibound variables (like the Simplifier), instead of accidentally 
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

781 
named local fixes. This has the potential to improve stability of proof 
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

782 
tools, but can also cause INCOMPATIBILITY for tools that don't observe 
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

783 
the proof context discipline. 
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

784 

62017  785 
* Isar proof methods are based on a slightly more general type 
786 
context_tactic, which allows to change the proof context dynamically 

787 
(e.g. to update cases) and indicate explicit Seq.Error results. Former 

788 
METHOD_CASES is superseded by CONTEXT_METHOD; further combinators are 

789 
provided in src/Pure/Isar/method.ML for convenience. INCOMPATIBILITY. 

61887
acdfc76a6c33
more explicit ML profiling, with official Isabelle output;
wenzelm
parents:
61848
diff
changeset

790 

60642
48dd1cefb4ae
simplified Thm.instantiate and derivatives: the LHS refers to noncertified variables  this merely serves as index into already certified structures (or is ignored);
wenzelm
parents:
60631
diff
changeset

791 

60983
ff4a67c65084
updated to polyml5.5.320150820, with native x86windows support;
wenzelm
parents:
60922
diff
changeset

792 
*** System *** 
ff4a67c65084
updated to polyml5.5.320150820, with native x86windows support;
wenzelm
parents:
60922
diff
changeset

793 

61958  794 
* Commandline tool "isabelle console" enables print mode "ASCII". 
795 

62017  796 
* Commandline tool "isabelle update_then" expands old Isar command 
797 
conflations: 

798 

799 
hence ~> then have 

800 
thus ~> then show 

801 

802 
This syntax is more orthogonal and improves readability and 

803 
maintainability of proofs. 

804 

61602  805 
* Global session timeout is multiplied by timeout_scale factor. This 
806 
allows to adjust largescale tests (e.g. AFP) to overall hardware 

807 
performance. 

808 

61174  809 
* Property values in etc/symbols may contain spaces, if written with the 
62205  810 
replacement character "␣" (Unicode point 0x2324). For example: 
61174  811 

61602  812 
\<star> code: 0x0022c6 group: operator font: Deja␣Vu␣Sans␣Mono 
61174  813 

60996
5176de8f90db
updated to jdk8u60, with support for x86_64windows;
wenzelm
parents:
60986
diff
changeset

814 
* Java runtime environment for x86_64windows allows to use larger heap 
5176de8f90db
updated to jdk8u60, with support for x86_64windows;
wenzelm
parents:
60986
diff
changeset

815 
space. 
5176de8f90db
updated to jdk8u60, with support for x86_64windows;
wenzelm
parents:
60986
diff
changeset

816 

61135
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

817 
* Java runtime options are determined separately for 32bit vs. 64bit 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

818 
platforms as follows. 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

819 

8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

820 
 Isabelle desktop application: platformspecific files that are 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

821 
associated with the main app bundle 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

822 

8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

823 
 isabelle jedit: settings 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

824 
JEDIT_JAVA_SYSTEM_OPTIONS 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

825 
JEDIT_JAVA_OPTIONS32 vs. JEDIT_JAVA_OPTIONS64 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

826 

8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

827 
 isabelle build: settings 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

828 
ISABELLE_BUILD_JAVA_OPTIONS32 vs. ISABELLE_BUILD_JAVA_OPTIONS64 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

829 

61294  830 
* Bash shell function "jvmpath" has been renamed to "platform_path": it 
831 
is relevant both for Poly/ML and JVM processes. 

832 

62017  833 
* Poly/ML default platform architecture may be changed from 32bit to 
62205  834 
64bit via system option ML_system_64. A system restart (and rebuild) is 
835 
required after change. 

62017  836 

837 
* Poly/ML 5.6 runs natively on x86windows and x86_64windows, which 

838 
both allow larger heap space than former x86cygwin. 

839 

62157  840 
* Heap images are 1015% smaller due to less wasteful persistent theory 
841 
content (using ML type theory_id instead of theory); 

842 

60983
ff4a67c65084
updated to polyml5.5.320150820, with native x86windows support;
wenzelm
parents:
60922
diff
changeset

843 

60479  844 

60010  845 
New in Isabelle2015 (May 2015) 
846 
 

57695  847 

57941
57200bdc2aa7
localized command 'method_setup' and 'attribute_setup';
wenzelm
parents:
57882
diff
changeset

848 
*** General *** 
57200bdc2aa7
localized command 'method_setup' and 'attribute_setup';
wenzelm
parents:
57882
diff
changeset

849 

59939
7d46aa03696e
support for 'restricted' modifier: only qualified accesses outside the local scope;
wenzelm
parents:
59936
diff
changeset

850 
* Local theory specification commands may have a 'private' or 
59990
a81dc82ecba3
clarified keyword 'qualified' in accordance to a similar keyword from Haskell (despite unrelated Binding.qualified in Isabelle/ML);
wenzelm
parents:
59967
diff
changeset

851 
'qualified' modifier to restrict name space accesses to the local scope, 
59939
7d46aa03696e
support for 'restricted' modifier: only qualified accesses outside the local scope;
wenzelm
parents:
59936
diff
changeset

852 
as provided by some "context begin ... end" block. For example: 
59926  853 

854 
context 

855 
begin 

856 

857 
private definition ... 

858 
private lemma ... 

859 

59990
a81dc82ecba3
clarified keyword 'qualified' in accordance to a similar keyword from Haskell (despite unrelated Binding.qualified in Isabelle/ML);
wenzelm
parents:
59967
diff
changeset

860 
qualified definition ... 
a81dc82ecba3
clarified keyword 'qualified' in accordance to a similar keyword from Haskell (despite unrelated Binding.qualified in Isabelle/ML);
wenzelm
parents:
59967
diff
changeset

861 
qualified lemma ... 
a81dc82ecba3
clarified keyword 'qualified' in accordance to a similar keyword from Haskell (despite unrelated Binding.qualified in Isabelle/ML);
wenzelm
parents:
59967
diff
changeset

862 

59926  863 
lemma ... 
864 
theorem ... 

865 

866 
end 

867 

59901  868 
* Command 'experiment' opens an anonymous locale context with private 
869 
naming policy. 

870 

59951  871 
* Command 'notepad' requires proper nesting of begin/end and its proof 
872 
structure in the body: 'oops' is no longer supported here. Minor 

873 
INCOMPATIBILITY, use 'sorry' instead. 

874 

875 
* Command 'named_theorems' declares a dynamic fact within the context, 

876 
together with an attribute to maintain the content incrementally. This 

877 
supersedes functor Named_Thms in Isabelle/ML, but with a subtle change 

878 
of semantics due to external visual order vs. internal reverse order. 

879 

880 
* 'find_theorems': search patterns which are abstractions are 

881 
schematically expanded before search. Search results match the naive 

882 
expectation more closely, particularly wrt. abbreviations. 

883 
INCOMPATIBILITY. 

59648  884 

59569  885 
* Commands 'method_setup' and 'attribute_setup' now work within a local 
886 
theory context. 

57941
57200bdc2aa7
localized command 'method_setup' and 'attribute_setup';
wenzelm
parents:
57882
diff
changeset

887 

58928
23d0ffd48006
plain value Keywords.keywords, which might be used outside theory for bootstrap purposes;
wenzelm
parents:
58872
diff
changeset

888 
* Outer syntax commands are managed authentically within the theory 
59569  889 
context, without implicit global state. Potential for accidental 
58928
23d0ffd48006
plain value Keywords.keywords, which might be used outside theory for bootstrap purposes;
wenzelm
parents:
58872
diff
changeset

890 
INCOMPATIBILITY, make sure that required theories are really imported. 
23d0ffd48006
plain value Keywords.keywords, which might be used outside theory for bootstrap purposes;
wenzelm
parents:
58872
diff
changeset

891 

60116  892 
* Historical commandline terminator ";" is no longer accepted (and 
893 
already used differently in Isar). Minor INCOMPATIBILITY, use "isabelle 

894 
update_semicolons" to remove obsolete semicolons from old theory 

895 
sources. 

896 

59951  897 
* Structural composition of proof methods (meth1; meth2) in Isar 
898 
corresponds to (tac1 THEN_ALL_NEW tac2) in ML. 

59105  899 

60119
54bea620e54f
added Eisbach, using version 3752768caa17 of its Bitbucket repository;
wenzelm
parents:
60116
diff
changeset

900 
* The Eisbach proof method language allows to define new proof methods 
54bea620e54f
added Eisbach, using version 3752768caa17 of its Bitbucket repository;
wenzelm
parents:
60116
diff
changeset

901 
by combining existing ones with their usual syntax. The "match" proof 
54bea620e54f
added Eisbach, using version 3752768caa17 of its Bitbucket repository;
wenzelm
parents:
60116
diff
changeset

902 
method provides basic fact/term matching in addition to 
54bea620e54f
added Eisbach, using version 3752768caa17 of its Bitbucket repository;
wenzelm
parents:
60116
diff
changeset

903 
premise/conclusion matching through Subgoal.focus, and binds fact names 
60288
d7f636331176
added Eisbach manual, using version 8845c4cb28b6 of its Bitbucket repository;
wenzelm
parents:
60273
diff
changeset

904 
from matches as well as term patterns within matches. The Isabelle 
d7f636331176
added Eisbach manual, using version 8845c4cb28b6 of its Bitbucket repository;
wenzelm
parents:
60273
diff
changeset

905 
documentation provides an entry "eisbach" for the Eisbach User Manual. 
d7f636331176
added Eisbach manual, using version 8845c4cb28b6 of its Bitbucket repository;
wenzelm
parents:
60273
diff
changeset

906 
Sources and various examples are in ~~/src/HOL/Eisbach/. 
60119
54bea620e54f
added Eisbach, using version 3752768caa17 of its Bitbucket repository;
wenzelm
parents:
60116
diff
changeset

907 

57941
57200bdc2aa7
localized command 'method_setup' and 'attribute_setup';
wenzelm
parents:
57882
diff
changeset

908 

58524  909 
*** Prover IDE  Isabelle/Scala/jEdit *** 
910 

59569  911 
* Improved folding mode "isabelle" based on Isar syntax. Alternatively, 
912 
the "sidekick" mode may be used for document structure. 

913 

914 
* Extended bracket matching based on Isar language structure. System 

915 
option jedit_structure_limit determines maximum number of lines to scan 

916 
in the buffer. 

58758  917 

58540  918 
* Support for BibTeX files: context menu, contextsensitive token 
919 
marker, SideKick parser. 

58524  920 

58551  921 
* Document antiquotation @{cite} provides formal markup, which is 
60265  922 
interpreted semiformally based on .bib files that happen to be open in 
923 
the editor (hyperlinks, completion etc.). 

58551  924 

58785  925 
* Less waste of vertical space via negative line spacing (see Global 
926 
Options / Text Area). 

927 

60091
8bd5999133d4
let the system choose Graph_Display.display_graph_old: thm_deps needs tree hierarchy, code_deps needs cycles (!?);
wenzelm
parents:
60085
diff
changeset

928 
* Improved graphview panel with optional output of PNG or PDF, for 
60273
83de10e27007
use display_graph_old for locale_deps, to show a bit more than nothing for cyclic graphs;
wenzelm
parents:
60265
diff
changeset

929 
display of 'thy_deps', 'class_deps' etc. 
60010  930 

60116  931 
* The commands 'thy_deps' and 'class_deps' allow optional bounds to 
932 
restrict the visualized hierarchy. 

60095  933 

60072  934 
* Improved scheduling for asynchronous print commands (e.g. provers 
935 
managed by the Sledgehammer panel) wrt. ongoing document processing. 

936 

58524  937 

59951  938 
*** Document preparation *** 
939 

940 
* Document markup commands 'chapter', 'section', 'subsection', 

941 
'subsubsection', 'text', 'txt', 'text_raw' work uniformly in any 

942 
context, even before the initial 'theory' command. Obsolete proof 

943 
commands 'sect', 'subsect', 'subsubsect', 'txt_raw' have been 

944 
discontinued, use 'section', 'subsection', 'subsubsection', 'text_raw' 

945 
instead. The old 'header' command is still retained for some time, but 

946 
should be replaced by 'chapter', 'section' etc. (using "isabelle 

947 
update_header"). Minor INCOMPATIBILITY. 

948 

60010  949 
* Official support for "tt" style variants, via \isatt{...} or 
950 
\begin{isabellett}...\end{isabellett}. The somewhat fragile \verb or 

951 
verbatim environment of LaTeX is no longer used. This allows @{ML} etc. 

952 
as argument to other macros (such as footnotes). 

953 

954 
* Document antiquotation @{verbatim} prints ASCII text literally in "tt" 

955 
style. 

956 

957 
* Discontinued obsolete option "document_graph": session_graph.pdf is 

958 
produced unconditionally for HTML browser_info and PDFLaTeX document. 

959 

59951  960 
* Diagnostic commands and document markup commands within a proof do not 
961 
affect the command tag for output. Thus commands like 'thm' are subject 

962 
to proof document structure, and no longer "stick out" accidentally. 

963 
Commands 'text' and 'txt' merely differ in the LaTeX style, not their 

964 
tags. Potential INCOMPATIBILITY in exotic situations. 

965 

966 
* System option "pretty_margin" is superseded by "thy_output_margin", 

967 
which is also accessible via document antiquotation option "margin". 

968 
Only the margin for document output may be changed, but not the global 

969 
pretty printing: that is 76 for plain console output, and adapted 

970 
dynamically in GUI frontends. Implementations of document 

971 
antiquotations need to observe the margin explicitly according to 

972 
Thy_Output.string_of_margin. Minor INCOMPATIBILITY. 

973 

60299
5ae2a2e74c93
clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
wenzelm
parents:
60288
diff
changeset

974 
* Specification of 'document_files' in the session ROOT file is 
5ae2a2e74c93
clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
wenzelm
parents:
60288
diff
changeset

975 
mandatory for document preparation. The legacy mode with implicit 
5ae2a2e74c93
clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
wenzelm
parents:
60288
diff
changeset

976 
copying of the document/ directory is no longer supported. Minor 
5ae2a2e74c93
clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
wenzelm
parents:
60288
diff
changeset

977 
INCOMPATIBILITY. 
5ae2a2e74c93
clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
wenzelm
parents:
60288
diff
changeset

978 

59951  979 

58202  980 
*** Pure *** 
981 

59835
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

982 
* Proof methods with explicit instantiation ("rule_tac", "subgoal_tac" 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

983 
etc.) allow an optional context of local variables ('for' declaration): 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

984 
these variables become schematic in the instantiated theorem; this 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

985 
behaviour is analogous to 'for' in attributes "where" and "of". 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

986 
Configuration option rule_insts_schematic (default false) controls use 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

987 
of schematic variables outside the context. Minor INCOMPATIBILITY, 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

988 
declare rule_insts_schematic = true temporarily and update to use local 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

989 
variable declarations or dummy patterns instead. 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

990 

60010  991 
* Explicit instantiation via attributes "where", "of", and proof methods 
992 
"rule_tac" with derivatives like "subgoal_tac" etc. admit dummy patterns 

993 
("_") that stand for anonymous local variables. 

994 

59951  995 
* Generated schematic variables in standard format of exported facts are 
996 
incremented to avoid material in the proof context. Rare 

997 
INCOMPATIBILITY, explicit instantiation sometimes needs to refer to 

998 
different index. 

999 

60011  1000 
* Lexical separation of signed and unsigned numerals: categories "num" 
1001 
and "float" are unsigned. INCOMPATIBILITY: subtle change in precedence 

1002 
of numeral signs, particularly in expressions involving infix syntax 

1003 
like "( 1) ^ n". 

58410
6d46ad54a2ab
explicit separation of signed and unsigned numerals using existing lexical categories num and xnum
haftmann
parents:
58374
diff
changeset

1004 

58421  1005 
* Old inner token category "xnum" has been discontinued. Potential 
1006 
INCOMPATIBILITY for exotic syntax: may use mixfix grammar with "num" 

1007 
token category instead. 

1008 

58202  1009 

57737  1010 
*** HOL *** 
1011 

57983
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1012 
* New (co)datatype package: 
58374  1013 
 The 'datatype_new' command has been renamed 'datatype'. The old 
1014 
command of that name is now called 'old_datatype' and is provided 

1015 
by "~~/src/HOL/Library/Old_Datatype.thy". See 

1016 
'isabelle doc datatypes' for information on porting. 

1017 
INCOMPATIBILITY. 

57983
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1018 
 Renamed theorems: 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1019 
disc_corec ~> corec_disc 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1020 
disc_corec_iff ~> corec_disc_iff 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1021 
disc_exclude ~> distinct_disc 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1022 
disc_exhaust ~> exhaust_disc 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1023 
disc_map_iff ~> map_disc_iff 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1024 
sel_corec ~> corec_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1025 
sel_exhaust ~> exhaust_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1026 
sel_map ~> map_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1027 
sel_set ~> set_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1028 
sel_split ~> split_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1029 
sel_split_asm ~> split_sel_asm 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1030 
strong_coinduct ~> coinduct_strong 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1031 
weak_case_cong ~> case_cong_weak 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1032 
INCOMPATIBILITY. 
58192  1033 
 The "no_code" option to "free_constructors", "datatype_new", and 
1034 
"codatatype" has been renamed "plugins del: code". 

1035 
INCOMPATIBILITY. 

58044  1036 
 The rules "set_empty" have been removed. They are easy 
1037 
consequences of other set rules "by auto". 

1038 
INCOMPATIBILITY. 

1039 
 The rule "set_cases" is now registered with the "[cases set]" 

57990  1040 
attribute. This can influence the behavior of the "cases" proof 
1041 
method when more than one case rule is applicable (e.g., an 

1042 
assumption is of the form "w : set ws" and the method "cases w" 

1043 
is invoked). The solution is to specify the case rule explicitly 

1044 
(e.g. "cases w rule: widget.exhaust"). 

1045 
INCOMPATIBILITY. 

59675  1046 
 Renamed theories: 
1047 
BNF_Comp ~> BNF_Composition 

1048 
BNF_FP_Base ~> BNF_Fixpoint_Base 

1049 
BNF_GFP ~> BNF_Greatest_Fixpoint 

1050 
BNF_LFP ~> BNF_Least_Fixpoint 

1051 
BNF_Constructions_on_Wellorders ~> BNF_Wellorder_Constructions 

1052 
Cardinals/Constructions_on_Wellorders ~> Cardinals/Wellorder_Constructions 

1053 
INCOMPATIBILITY. 

60115  1054 
 Lifting and Transfer setup for basic HOL types sum and prod (also 
1055 
option) is now performed by the BNF package. Theories Lifting_Sum, 

1056 
Lifting_Product and Lifting_Option from Main became obsolete and 

1057 
were removed. Changed definitions of the relators rel_prod and 

1058 
rel_sum (using inductive). 

60112  1059 
INCOMPATIBILITY: use rel_prod.simps and rel_sum.simps instead 
60115  1060 
of rel_prod_def and rel_sum_def. 
1061 
Minor INCOMPATIBILITY: (rarely used by name) transfer theorem names 

1062 
changed (e.g. map_prod_transfer ~> prod.map_transfer). 

60261  1063 
 Parametricity theorems for map functions, relators, set functions, 
1064 
constructors, case combinators, discriminators, selectors and 

1065 
(co)recursors are automatically proved and registered as transfer 

1066 
rules. 

57983
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1067 

6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1068 
* Old datatype package: 
58310  1069 
 The old 'datatype' command has been renamed 'old_datatype', and 
58374  1070 
'rep_datatype' has been renamed 'old_rep_datatype'. They are 
1071 
provided by "~~/src/HOL/Library/Old_Datatype.thy". See 

58310  1072 
'isabelle doc datatypes' for information on porting. 
58374  1073 
INCOMPATIBILITY. 
57983
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1074 
 Renamed theorems: 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1075 
weak_case_cong ~> case_cong_weak 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1076 
INCOMPATIBILITY. 
58374  1077 
 Renamed theory: 
1078 
~~/src/HOL/Datatype.thy ~> ~~/src/HOL/Library/Old_Datatype.thy 

1079 
INCOMPATIBILITY. 

57983
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1080 

59039  1081 
* Nitpick: 
60011  1082 
 Fixed soundness bug related to the strict and nonstrict subset 
59039  1083 
operations. 
1084 

57737  1085 
* Sledgehammer: 
59511  1086 
 CVC4 is now included with Isabelle instead of CVC3 and run by 
1087 
default. 

59965  1088 
 Z3 is now always enabled by default, now that it is fully open 
1089 
source. The "z3_non_commercial" option is discontinued. 

57737  1090 
 Minimization is now always enabled by default. 
60011  1091 
Removed subcommand: 
57737  1092 
min 
59967  1093 
 Proof reconstruction, both oneliners and Isar, has been 
59039  1094 
dramatically improved. 
1095 
 Improved support for CVC4 and veriT. 

57737  1096 

58062  1097 
* Old and new SMT modules: 
58067  1098 
 The old 'smt' method has been renamed 'old_smt' and moved to 
59569  1099 
'src/HOL/Library/Old_SMT.thy'. It is provided for compatibility, 
1100 
until applications have been ported to use the new 'smt' method. For 

1101 
the method to work, an older version of Z3 (e.g. Z3 3.2 or 4.0) must 

1102 
be installed, and the environment variable "OLD_Z3_SOLVER" must 

1103 
point to it. 

58062  1104 
INCOMPATIBILITY. 
58067  1105 
 The 'smt2' method has been renamed 'smt'. 
58060  1106 
INCOMPATIBILITY. 
59569  1107 
 New option 'smt_reconstruction_step_timeout' to limit the 
1108 
reconstruction time of Z3 proof steps in the new 'smt' method. 

59216  1109 
 New option 'smt_statistics' to display statistics of the new 'smt' 
1110 
method, especially runtime statistics of Z3 proof reconstruction. 

58060  1111 

60261  1112 
* Lifting: command 'lift_definition' allows to execute lifted constants 
1113 
that have as a return type a datatype containing a subtype. This 

1114 
overcomes longtime limitations in the area of code generation and 

1115 
lifting, and avoids tedious workarounds. 

60258  1116 

60010  1117 
* Command and antiquotation "value" provide different evaluation slots 
1118 
(again), where the previous strategy (NBE after ML) serves as default. 

1119 
Minor INCOMPATIBILITY. 

1120 

1121 
* Add NO_MATCHsimproc, allows to check for syntactic nonequality. 

1122 

1123 
* field_simps: Use NO_MATCHsimproc for distribution rules, to avoid 

1124 
nontermination in case of distributing a division. With this change 

1125 
field_simps is in some cases slightly less powerful, if it fails try to 

1126 
add algebra_simps, or use divide_simps. Minor INCOMPATIBILITY. 

1127 

1128 
* Separate class no_zero_divisors has been given up in favour of fully 

1129 
algebraic semiring_no_zero_divisors. INCOMPATIBILITY. 

1130 

1131 
* Class linordered_semidom really requires no zero divisors. 

1132 
INCOMPATIBILITY. 

1133 

1134 
* Classes division_ring, field and linordered_field always demand 

1135 
"inverse 0 = 0". Given up separate classes division_ring_inverse_zero, 

1136 
field_inverse_zero and linordered_field_inverse_zero. INCOMPATIBILITY. 

1137 

1138 
* Classes cancel_ab_semigroup_add / cancel_monoid_add specify explicit 

1139 
additive inverse operation. INCOMPATIBILITY. 

1140 

60020
065ecea354d0
Complex roots of unity. Better definition of ln for complex numbers. Used [code del] to stop code generation for powr.
paulson <lp15@cam.ac.uk>
parents:
60011
diff
changeset

1141 
* Complex powers and square roots. The functions "ln" and "powr" are now 
60025  1142 
overloaded for types real and complex, and 0 powr y = 0 by definition. 
1143 
INCOMPATIBILITY: type constraints may be necessary. 

60020
065ecea354d0
Complex roots of unity. Better definition of ln for complex numbers. Used [code del] to stop code generation for powr.
paulson <lp15@cam.ac.uk>
parents:
60011
diff
changeset

1144 

60010  1145 
* The functions "sin" and "cos" are now defined for any type of sort 
1146 
"{real_normed_algebra_1,banach}" type, so in particular on "real" and 

1147 
"complex" uniformly. Minor INCOMPATIBILITY: type constraints may be 

1148 
needed. 

1149 

1150 
* New library of properties of the complex transcendental functions sin, 

1151 
cos, tan, exp, Ln, Arctan, Arcsin, Arccos. Ported from HOL Light. 

1152 

1153 
* The factorial function, "fact", now has type "nat => 'a" (of a sort 

1154 
that admits numeric types including nat, int, real and complex. 

1155 
INCOMPATIBILITY: an expression such as "fact 3 = 6" may require a type 

1156 
constraint, and the combination "real (fact k)" is likely to be 

1157 
unsatisfactory. If a type conversion is still necessary, then use 

1158 
"of_nat (fact k)" or "real_of_nat (fact k)". 

1159 

1160 
* Removed functions "natfloor" and "natceiling", use "nat o floor" and 

1161 
"nat o ceiling" instead. A few of the lemmas have been retained and 

1162 
adapted: in their names "natfloor"/"natceiling" has been replaced by 

1163 
"nat_floor"/"nat_ceiling". 

1164 

1165 
* Qualified some duplicated fact names required for boostrapping the 

1166 
type class hierarchy: 

1167 
ab_add_uminus_conv_diff ~> diff_conv_add_uminus 

1168 
field_inverse_zero ~> inverse_zero 

1169 
field_divide_inverse ~> divide_inverse 

1170 
field_inverse ~> left_inverse 

1171 
Minor INCOMPATIBILITY. 

1172 

1173 
* Eliminated fact duplicates: 

1174 
mult_less_imp_less_right ~> mult_right_less_imp_less 

1175 
mult_less_imp_less_left ~> mult_left_less_imp_less 

1176 
Minor INCOMPATIBILITY. 

1177 

1178 
* Fact consolidation: even_less_0_iff is subsumed by 

1179 
double_add_less_zero_iff_single_add_less_zero (simp by default anyway). 

1180 

1181 
* Generalized and consolidated some theorems concerning divsibility: 

1182 
dvd_reduce ~> dvd_add_triv_right_iff 

1183 
dvd_plus_eq_right ~> dvd_add_right_iff 

1184 
dvd_plus_eq_left ~> dvd_add_left_iff 

1185 
Minor INCOMPATIBILITY. 

1186 

1187 
* "even" and "odd" are mere abbreviations for "2 dvd _" and "~ 2 dvd _" 

1188 
and part of theory Main. 

1189 
even_def ~> even_iff_mod_2_eq_zero 

1190 
INCOMPATIBILITY. 

1191 

1192 
* Lemma name consolidation: divide_Numeral1 ~> divide_numeral_1. Minor 

1193 
INCOMPATIBILITY. 

1194 

1195 
* Bootstrap of listsum as special case of abstract product over lists. 

1196 
Fact rename: 

1197 
listsum_def ~> listsum.eq_foldr 

1198 
INCOMPATIBILITY. 

1199 

1200 
* Product over lists via constant "listprod". 

1201 

1202 
* Theory List: renamed drop_Suc_conv_tl and nth_drop' to 

1203 
Cons_nth_drop_Suc. 

58247
98d0f85d247f
enamed drop_Suc_conv_tl and nth_drop' to Cons_nth_drop_Suc
nipkow
parents:
58202
diff
changeset

1204 

58626  1205 
* New infrastructure for compiling, running, evaluating and testing 
59569  1206 
generated code in target languages in HOL/Library/Code_Test. See 
1207 
HOL/Codegenerator_Test/Code_Test* for examples. 

58008  1208 

60010  1209 
* Library/Multiset: 
59813  1210 
 Introduced "replicate_mset" operation. 
1211 
 Introduced alternative characterizations of the multiset ordering in 

1212 
"Library/Multiset_Order". 

59958
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

1213 
 Renamed multiset ordering: 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

1214 
<# ~> #<# 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

1215 
<=# ~> #<=# 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

1216 
\<subset># ~> #\<subset># 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

1217 
\<subseteq># ~> #\<subseteq># 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

1218 
INCOMPATIBILITY. 
59986
f38b94549dc8
introduced new abbreviations for multiset operations (in the hope of getting rid of the old names <, <=, etc.)
blanchet
parents:
59967
diff
changeset

1219 
 Introduced abbreviations for illnamed multiset operations: 
f38b94549dc8
introduced new abbreviations for multiset operations (in the hope of getting rid of the old names <, <=, etc.)
blanchet
parents:
59967
diff
changeset

1220 
<#, \<subset># abbreviate < (strict subset) 
f38b94549dc8
introduced new abbreviations for multiset operations (in the hope of getting rid of the old names <, <=, etc.)
blanchet
parents:
59967
diff
changeset

1221 
<=#, \<le>#, \<subseteq># abbreviate <= (subset or equal) 
f38b94549dc8
introduced new abbreviations for multiset operations (in the hope of getting rid of the old names <, <=, etc.)
blanchet
parents:
59967
diff
changeset

1222 
INCOMPATIBILITY. 
59813  1223 
 Renamed 
1224 
in_multiset_of ~> in_multiset_in_set 

59998
c54d36be22ef
renamed Multiset.fold > fold_mset, Multiset.filter > filter_mset
nipkow
parents:
59991
diff
changeset

1225 
Multiset.fold ~> fold_mset 
c54d36be22ef
renamed Multiset.fold > fold_mset, Multiset.filter > filter_mset
nipkow
parents:
59991
diff
changeset

1226 
Multiset.filter ~> filter_mset 
59813  1227 
INCOMPATIBILITY. 
59949  1228 
 Removed mcard, is equal to size. 
59813  1229 
 Added attributes: 
1230 
image_mset.id [simp] 

1231 
image_mset_id [simp] 

1232 
elem_multiset_of_set [simp, intro] 

1233 
comp_fun_commute_plus_mset [simp] 

1234 
comp_fun_commute.fold_mset_insert [OF comp_fun_commute_plus_mset, simp] 

1235 
in_mset_fold_plus_iff [iff] 

1236 
set_of_Union_mset [simp] 

1237 
in_Union_mset_iff [iff] 

1238 
INCOMPATIBILITY. 

1239 

60010  1240 
* Library/Sum_of_Squares: simplified and improved "sos" method. Always 
1241 
use local CSDP executable, which is much faster than the NEOS server. 

1242 
The "sos_cert" functionality is invoked as "sos" with additional 

1243 
argument. Minor INCOMPATIBILITY. 

1244 

1245 
* HOLDecision_Procs: New counterexample generator quickcheck 

1246 
[approximation] for inequalities of transcendental functions. Uses 

1247 
hardware floating point arithmetic to randomly discover potential 

60011  1248 
counterexamples. Counterexamples are certified with the "approximation" 
60010  1249 
method. See HOL/Decision_Procs/ex/Approximation_Quickcheck_Ex.thy for 
1250 
examples. 

58990  1251 

62201
eca7b38c8ee5
Added approximation of powr to NEWS/CONTRIBUTORS
Manuel Eberl <eberlm@in.tum.de>
parents:
62169
diff
changeset

1252 
* HOLDecision_Procs: The "approximation" method works with "powr" 
eca7b38c8ee5
Added approximation of powr to NEWS/CONTRIBUTORS
Manuel Eberl <eberlm@in.tum.de>
parents:
62169
diff
changeset

1253 
(exponentiation on real numbers) again. 
eca7b38c8ee5
Added approximation of powr to NEWS/CONTRIBUTORS
Manuel Eberl <eberlm@in.tum.de>
parents:
62169
diff
changeset

1254 

59354  1255 
* HOLProbability: Reworked measurability prover 
60011  1256 
 applies destructor rules repeatedly 
59354  1257 
 removed application splitting (replaced by destructor rule) 
59569  1258 
 added congruence rules to rewrite measure spaces under the sets 
1259 
projection 

1260 

60010  1261 
* New proof method "rewrite" (in theory ~~/src/HOL/Library/Rewrite) for 
1262 
singlestep rewriting with subterm selection based on patterns. 

1263 

58630  1264 

58066  1265 
*** ML *** 
1266 

60010  1267 
* Subtle change of name space policy: undeclared entries are now 
1268 
considered inaccessible, instead of accessible via the fullyqualified 

1269 
internal name. This mainly affects Name_Space.intern (and derivatives), 

1270 
which may produce an unexpected Long_Name.hidden prefix. Note that 

60011  1271 
contemporary applications use the strict Name_Space.check (and 
60010  1272 
derivatives) instead, which is not affected by the change. Potential 
1273 
INCOMPATIBILITY in rare applications of Name_Space.intern. 

59951  1274 

60096  1275 
* Subtle change of error semantics of Toplevel.proof_of: regular user 
1276 
ERROR instead of internal Toplevel.UNDEF. 

1277 

59951  1278 
* Basic combinators map, fold, fold_map, split_list, apply are available 
1279 
as parameterized antiquotations, e.g. @{map 4} for lists of quadruples. 

1280 

1281 
* Renamed "pairself" to "apply2", in accordance to @{apply 2}. 

1282 
INCOMPATIBILITY. 

1283 

1284 
* Former combinators NAMED_CRITICAL and CRITICAL for central critical 

1285 
sections have been discontinued, in favour of the more elementary 

1286 
Multithreading.synchronized and its highlevel derivative 

1287 
Synchronized.var (which is usually sufficient in applications). Subtle 

1288 
INCOMPATIBILITY: synchronized access needs to be atomic and cannot be 

1289 
nested. 

1290 

60010  1291 
* Synchronized.value (ML) is actually synchronized (as in Scala): subtle 
1292 
change of semantics with minimal potential for INCOMPATIBILITY. 

59899  1293 

59621
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
wenzelm
parents:
59588
diff
changeset

1294 
* The main operations to certify logical entities are Thm.ctyp_of and 
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
wenzelm
parents:
59588
diff
changeset

1295 
Thm.cterm_of with a local context; oldstyle global theory variants are 
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
wenzelm
parents:
59588
diff
changeset

1296 
available as Thm.global_ctyp_of and Thm.global_cterm_of. 
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
wenzelm
parents:
59588
diff
changeset

1297 
INCOMPATIBILITY. 
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
wenzelm
parents:
59588
diff
changeset

1298 

59582  1299 
* Elementary operations in module Thm are no longer pervasive. 
1300 
INCOMPATIBILITY, need to use qualified Thm.prop_of, Thm.cterm_of, 

1301 
Thm.term_of etc. 

1302 

58963
26bf09b95dda
proper context for assume_tac (atac remains as fallback without context);
wenzelm
parents:
58957
diff
changeset

1303 
* Proper context for various elementary tactics: assume_tac, 
59498
50b60f501b05
proper context for resolve_tac, eresolve_tac, dresolve_tac, forward_tac etc.;
wenzelm
parents:
59480
diff
changeset

1304 
resolve_tac, eresolve_tac, dresolve_tac, forward_tac, match_tac, 
50b60f501b05
proper context for resolve_tac, eresolve_tac, dresolve_tac, forward_tac etc.;
wenzelm
parents:
59480
diff
changeset

1305 
compose_tac, Splitter.split_tac etc. INCOMPATIBILITY. 
58956
a816aa3ff391
proper context for compose_tac, Splitter.split_tac (relevant for unify trace options);
wenzelm
parents:
58928
diff
changeset

1306 

58066  1307 
* Tactical PARALLEL_ALLGOALS is the most common way to refer to 
1308 
PARALLEL_GOALS. 

1309 

59564
fdc03c8daacc
Goal.prove_multi is superseded by the fully general Goal.prove_common;
wenzelm
parents:
59557
diff
changeset

1310 
* Goal.prove_multi is superseded by the fully general Goal.prove_common, 
fdc03c8daacc
Goal.prove_multi is superseded by the fully general Goal.prove_common;
wenzelm
parents:
59557
diff
changeset

1311 
which also allows to specify a fork priority. 
fdc03c8daacc
Goal.prove_multi is superseded by the fully general Goal.prove_common;
wenzelm
parents:
59557
diff
changeset

1312 

59936
b8ffc3dc9e24
@{command_spec} is superseded by @{command_keyword};
wenzelm
parents:
59926
diff
changeset

1313 
* Antiquotation @{command_spec "COMMAND"} is superseded by 
b8ffc3dc9e24
@{command_spec} is superseded by @{command_keyword};
wenzelm
parents:
59926
diff
changeset

1314 
@{command_keyword COMMAND} (usually without quotes and with PIDE 
b8ffc3dc9e24
@{command_spec} is superseded by @{command_keyword};
wenzelm
parents:
59926
diff
changeset

1315 
markup). Minor INCOMPATIBILITY. 
b8ffc3dc9e24
@{command_spec} is superseded by @{command_keyword};
wenzelm
parents:
59926
diff
changeset

1316 

60010  1317 
* Cartouches within ML sources are turned into values of type 
1318 
Input.source (with formal position information). 

1319 

58066  1320 

58610  1321 
*** System *** 
1322 

59951  1323 
* The Isabelle tool "update_cartouches" changes theory files to use 
1324 
cartouches instead of oldstyle {* verbatim *} or `alt_string` tokens. 

1325 

60108  1326 
* The Isabelle tool "build" provides new options X, k, x. 
59951  1327 

1328 
* Discontinued oldfashioned "codegen" tool. Code generation can always 

1329 
be externally triggered using an appropriate ROOT file plus a 

1330 
corresponding theory. Parametrization is possible using environment 

1331 
variables, or ML snippets in the most extreme cases. Minor 

1332 
INCOMPATIBILITY. 

58842  1333 

59200  1334 
* JVM system property "isabelle.threads" determines size of Scala thread 
1335 
pool, like Isabelle system option "threads" for ML. 

1336 

59201
702e0971d617
added system property isabelle.laf, notably for initial system dialog;
wenzelm
parents:
59200
diff
changeset

1337 
* JVM system property "isabelle.laf" determines the default Swing 
702e0971d617
added system property isabelle.laf, notably for initial system dialog;
wenzelm
parents:
59200
diff
changeset

1338 
lookandfeel, via internal class name or symbolic name as in the jEdit 
702e0971d617
added system property isabelle.laf, notably for initial system dialog;
wenzelm
parents:
59200
diff
changeset

1339 
menu Global Options / Appearance. 
702e0971d617
added system property isabelle.laf, notably for initial system dialog;
wenzelm
parents:
59200
diff
changeset

1340 

59951  1341 
* Support for Proof General and Isar TTY loop has been discontinued. 
60010  1342 
Minor INCOMPATIBILITY, use standard PIDE infrastructure instead. 
59891
9ce697050455
added isabelle build option k, for fast offline checking of theory sources;
wenzelm
parents:
59849
diff
changeset

1343 

58610  1344 

57695  1345 

57452  1346 
New in Isabelle2014 (August 2014) 
1347 
 

54055  1348 

54702
3daeba5130f0
added document antiquotation @{url}, which produces formal markup for LaTeX and PIDE;
wenzelm
parents:
54688
diff
changeset

1349 
*** General *** 
3daeba5130f0
added document antiquotation @{url}, which produces formal markup for LaTeX and PIDE;
wenzelm
parents:
54688
diff
changeset

1350 

57452  1351 
* Support for official Standard ML within the Isabelle context. 
1352 
Command 'SML_file' reads and evaluates the given Standard ML file. 

1353 
Toplevel bindings are stored within the theory context; the initial 

1354 
environment is restricted to the Standard ML implementation of 

1355 
Poly/ML, without the addons of Isabelle/ML. Commands 'SML_import' 

1356 
and 'SML_export' allow to exchange toplevel bindings between the two 

1357 
separate environments. See also ~~/src/Tools/SML/Examples.thy for 

1358 
some examples. 

56499
7e0178c84994
allow text cartouches in regular outer syntax categories "text" and "altstring";
wenzelm
parents:
56450
diff
changeset

1359 

57504  1360 
* Standard tactics and proof methods such as "clarsimp", "auto" and 
1361 
"safe" now preserve equality hypotheses "x = expr" where x is a free 

1362 
variable. Locale assumptions and chained facts containing "x" 

1363 
continue to be useful. The new method "hypsubst_thin" and the 

1364 
configuration option "hypsubst_thin" (within the attribute name space) 

1365 
restore the previous behavior. INCOMPATIBILITY, especially where 

1366 
induction is done after these methods or when the names of free and 

1367 
bound variables clash. As first approximation, old proofs may be 

1368 
repaired by "using [[hypsubst_thin = true]]" in the critical spot. 

1369 

56232  1370 
* More static checking of proof methods, which allows the system to 
1371 
form a closure over the concrete syntax. Method arguments should be 

1372 
processed in the original proof context as far as possible, before 

1373 
operating on the goal state. In any case, the standard discipline for 

1374 
subgoaladdressing needs to be observed: no subgoals or a subgoal 

1375 
number that is out of range produces an empty result sequence, not an 

1376 
exception. Potential INCOMPATIBILITY for nonconformant tactical 

1377 
proof tools. 

1378 

57452  1379 
* Lexical syntax (inner and outer) supports text cartouches with 
1380 
arbitrary nesting, and without escapes of quotes etc. The Prover IDE 

1381 
supports input via ` (backquote). 

1382 

1383 
* The outer syntax categories "text" (for formal comments and document 

1384 
markup commands) and "altstring" (for literal fact references) allow 

1385 
cartouches as well, in addition to the traditional mix of quotations. 

1386 

1387 
* Syntax of document antiquotation @{rail} now uses \<newline> instead 

1388 
of "\\", to avoid the optical illusion of escaped backslash within 

57491  1389 
string token. General renovation of its syntax using text cartouches. 
57452  1390 
Minor INCOMPATIBILITY. 
1391 

1392 
* Discontinued legacy_isub_isup, which was a temporary workaround for 

1393 
Isabelle/ML in Isabelle20131. The prover process no longer accepts 

1394 
old identifier syntax with \<^isub> or \<^isup>. Potential 

1395 
INCOMPATIBILITY. 

1396 

1397 
* Document antiquotation @{url} produces markup for the given URL, 
