author  Andreas Lochbihler 
Thu, 05 Dec 2013 09:23:59 +0100  
changeset 54631  da88a625cce1 
parent 54588  42b9baf50f8f 
child 54632  7a14f831d02d 
permissions  rwrr 
5363  1 
Isabelle NEWS  history userrelevant changes 
2 
============================================== 

2553  3 

54055  4 
New in this Isabelle version 
5 
 

6 

54533  7 
*** Prover IDE  Isabelle/Scala/jEdit *** 
8 

9 
* Auxiliary files ('ML_file' etc.) are managed by the Prover IDE. 

10 
Open text buffers take precedence over copies within the filesystem. 

11 

12 

54227
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moving generic lemmas out of theory parity, disregarding some unused auxiliary lemmas;
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*** HOL *** 
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moving generic lemmas out of theory parity, disregarding some unused auxiliary lemmas;
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14 

54295  15 
* Qualified constant names Wellfounded.acc, Wellfounded.accp. 
16 
INCOMPATIBILITY. 

17 

54228  18 
* Fact generalization and consolidation: 
19 
neq_one_mod_two, mod_2_not_eq_zero_eq_one_int ~> not_mod_2_eq_0_eq_1 

20 
INCOMPATIBILITY. 

21 

22 
* Purely algebraic definition of even. Fact generalization and consolidation: 

23 
nat_even_iff_2_dvd, int_even_iff_2_dvd ~> even_iff_2_dvd 

24 
even_zero_(natint) ~> even_zero 

25 
INCOMPATIBILITY. 

54055  26 

54489
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eliminiated neg_numeral in favour of  (numeral _)
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27 
* Abolished neg_numeral. 
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eliminiated neg_numeral in favour of  (numeral _)
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28 
* Canonical representation for minus one is " 1". 
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29 
* Canonical representation for other negative numbers is " (numeral _)". 
54502  30 
* When devising rule sets for number calculation, consider the 
54587  31 
following canonical cases: 0, 1, numeral _,  1,  numeral _. 
32 
* HOLogic.dest_number also recognizes numerals in noncanonical forms 

33 
like "numeral One", " numeral One", " 0" and even " …  _". 

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* Syntax for negative numerals is mere input syntax. 
03ff4d1e6784
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35 
INCOMPATBILITY. 
03ff4d1e6784
eliminiated neg_numeral in favour of  (numeral _)
haftmann
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36 

54230
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* Elimination of fact duplicates: 
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38 
equals_zero_I ~> minus_unique 
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39 
diff_eq_0_iff_eq ~> right_minus_eq 
54588  40 
nat_infinite ~> infinite_UNIV_nat 
41 
int_infinite ~> infinite_UNIV_int 

54230
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42 
INCOMPATIBILITY. 
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43 

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44 
* Fact name consolidation: 
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45 
diff_def, diff_minus, ab_diff_minus ~> diff_conv_add_uminus 
54250  46 
minus_le_self_iff ~> neg_less_eq_nonneg 
47 
le_minus_self_iff ~> less_eq_neg_nonpos 

48 
neg_less_nonneg ~> neg_less_pos 

49 
less_minus_self_iff ~> less_neg_neg [simp] 

54230
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INCOMPATIBILITY. 
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51 

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* More simplification rules on unary and binary minus: 
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53 
add_diff_cancel, add_diff_cancel_left, add_le_same_cancel1, 
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54 
add_le_same_cancel2, add_less_same_cancel1, add_less_same_cancel2, 
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55 
add_minus_cancel, diff_add_cancel, le_add_same_cancel1, 
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le_add_same_cancel2, less_add_same_cancel1, less_add_same_cancel2, 
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57 
minus_add_cancel, uminus_add_conv_diff. These correspondingly 
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58 
have been taken away from fact collections algebra_simps and 
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59 
field_simps. INCOMPATIBILITY. 
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60 

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61 
To restore proofs, the following patterns are helpful: 
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62 

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63 
a) Arbitrary failing proof not involving "diff_def": 
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64 
Consider simplification with algebra_simps or field_simps. 
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65 

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66 
b) Lifting rules from addition to subtraction: 
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67 
Try with "using <rule for addition> of [… " _" …]" by simp". 
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68 

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69 
c) Simplification with "diff_def": just drop "diff_def". 
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70 
Consider simplification with algebra_simps or field_simps; 
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71 
or the brute way with 
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"simp add: diff_conv_add_uminus del: add_uminus_conv_diff". 
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73 

54264  74 
* SUP and INF generalized to conditionally_complete_lattice 
75 

76 
* Theory Lubs moved HOL image to HOLLibrary. It is replaced by 

77 
Conditionally_Complete_Lattices. INCOMPATIBILITY. 

78 

79 
* Introduce bdd_above and bdd_below in Conditionally_Complete_Lattices, use them 

80 
instead of explicitly stating boundedness of sets. 

81 

54631  82 
* ccpo.admissible quantifies only over nonempty chains to allow 
83 
more syntaxdirected proof rules; the case of the empty chain 

84 
shows up as additional case in fixpoint induction proofs. 

85 
INCOMPATIBILITY 

54264  86 

54449
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*** ML *** 
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toplevel function "use" refers to raw ML bootstrap environment;
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88 

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toplevel function "use" refers to raw ML bootstrap environment;
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* Toplevel function "use" refers to raw ML bootstrap environment, 
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90 
without Isar context nor antiquotations. Potential INCOMPATIBILITY. 
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91 
Note that 'ML_file' is the canonical command to load ML files into the 
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formal context. 
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93 

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toplevel function "use" refers to raw ML bootstrap environment;
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94 

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toplevel function "use" refers to raw ML bootstrap environment;
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95 

53971  96 
New in Isabelle20131 (November 2013) 
97 
 

50994  98 

51293
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discontinued obsolete 'uses' within theory header;
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99 
*** General *** 
05b1bbae748d
discontinued obsolete 'uses' within theory header;
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100 

53971  101 
* Discontinued obsolete 'uses' within theory header. Note that 
102 
commands like 'ML_file' work without separate declaration of file 

103 
dependencies. Minor INCOMPATIBILITY. 

104 

105 
* Discontinued redundant 'use' command, which was superseded by 

106 
'ML_file' in Isabelle2013. Minor INCOMPATIBILITY. 

107 

53016
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* Simplified subscripts within identifiers, using plain \<^sub> 
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instead of the second copy \<^isub> and \<^isup>. Superscripts are 
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only for literal tokens within notation; explicit mixfix annotations 
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for consts or fixed variables may be used as fallback for unusual 
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names. Obsolete \<twosuperior> has been expanded to \<^sup>2 in 
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113 
Isabelle/HOL. INCOMPATIBILITY, use "isabelle update_sub_sup" to 
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114 
standardize symbols as a starting point for further manual cleanup. 
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115 
The ML reference variable "legacy_isub_isup" may be set as temporary 
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116 
workaround, to make the prover accept a subset of the old identifier 
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syntax. 
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118 

53021
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* Document antiquotations: term style "isub" has been renamed to 
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120 
"sub". Minor INCOMPATIBILITY. 
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121 

52487
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122 
* Uniform management of "quick_and_dirty" as system option (see also 
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123 
"isabelle options"), configuration option within the context (see also 
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124 
Config.get in Isabelle/ML), and attribute in Isabelle/Isar. Minor 
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125 
INCOMPATIBILITY, need to use more official Isabelle means to access 
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126 
quick_and_dirty, instead of historical poking into mutable reference. 
52059  127 

52060  128 
* Renamed command 'print_configs' to 'print_options'. Minor 
129 
INCOMPATIBILITY. 

130 

52430  131 
* Proper diagnostic command 'print_state'. Old 'pr' (with its 
132 
implicit change of some global references) is retained for now as 

133 
control command, e.g. for ProofGeneral 3.7.x. 

134 

52549  135 
* Discontinued 'print_drafts' command with its oldfashioned PS output 
136 
and Unix commandline print spooling. Minor INCOMPATIBILITY: use 

137 
'display_drafts' instead and print via the regular document viewer. 

138 

53971  139 
* Updated and extended "isarref" and "implementation" manual, 
140 
eliminated old "ref" manual. 

141 

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142 

51533  143 
*** Prover IDE  Isabelle/Scala/jEdit *** 
144 

53971  145 
* New manual "jedit" for Isabelle/jEdit, see isabelle doc or 
53852  146 
Documentation panel. 
147 

53971  148 
* Dockable window "Documentation" provides access to Isabelle 
149 
documentation. 

52646  150 

52949  151 
* Dockable window "Find" provides query operations for formal entities 
152 
(GUI frontend to 'find_theorems' command). 

153 

53050  154 
* Dockable window "Sledgehammer" manages asynchronous / parallel 
155 
sledgehammer runs over existing document sources, independently of 

156 
normal editing and checking process. 

157 

51533  158 
* Dockable window "Timing" provides an overview of relevant command 
54332  159 
timing information, depending on option jedit_timing_threshold. The 
160 
same timing information is shown in the extended tooltip of the 

161 
command keyword, when hovering the mouse over it while the CONTROL or 

162 
COMMAND modifier is pressed. 

51533  163 

53971  164 
* Improved dockable window "Theories": Continuous checking of proof 
165 
document (visible and required parts) may be controlled explicitly, 

166 
using check box or shortcut "C+e ENTER". Individual theory nodes may 

167 
be marked explicitly as required and checked in full, using check box 

168 
or shortcut "C+e SPACE". 

169 

54305  170 
* Improved completion mechanism, which is now managed by the 
171 
Isabelle/jEdit plugin instead of SideKick. Refined table of Isabelle 

172 
symbol abbreviations (see $ISABELLE_HOME/etc/symbols). 

173 

54319  174 
* Standard jEdit keyboard shortcut C+b completeword is remapped to 
175 
isabelle.complete for explicit completion in Isabelle sources. 

176 
INCOMPATIBILITY wrt. jEdit defaults, may have to invent new shortcuts 

177 
to resolve conflict. 

178 

54305  179 
* Improved support of various "minor modes" for Isabelle NEWS, 
180 
options, session ROOT etc., with completion and SideKick tree view. 

181 

53971  182 
* Strictly monotonic document update, without premature cancellation of 
183 
running transactions that are still needed: avoid reset/restart of 

184 
such command executions while editing. 

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185 

53971  186 
* Support for asynchronous print functions, as overlay to existing 
187 
document content. 

188 

189 
* Support for automatic tools in HOL, which try to prove or disprove 

190 
toplevel theorem statements. 

191 

192 
* Action isabelle.resetfontsize resets main text area font size 

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according to Isabelle/Scala plugin option "jedit_font_reset_size" (see 
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194 
also "Plugin Options / Isabelle / General"). It can be bound to some 
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195 
keyboard shortcut by the user (e.g. C+0 and/or C+NUMPAD0). 
53971  196 

197 
* File specifications in jEdit (e.g. file browser) may refer to 

54351  198 
$ISABELLE_HOME and $ISABELLE_HOME_USER on all platforms. Discontinued 
199 
obsolete $ISABELLE_HOME_WINDOWS variable. 

53971  200 

201 
* Improved support for Linux lookandfeel "GTK+", see also "Utilities 

202 
/ Global Options / Appearance". 

203 

204 
* Improved support of native Mac OS X functionality via "MacOSX" 

205 
plugin, which is now enabled by default. 

206 

51533  207 

51313  208 
*** Pure *** 
209 

54049  210 
* Commands 'interpretation' and 'sublocale' are now targetsensitive. 
211 
In particular, 'interpretation' allows for nonpersistent 

212 
interpretation within "context ... begin ... end" blocks offering a 

213 
lightweight alternative to 'sublocale'. See "isarref" manual for 

214 
details. 

51747  215 

51565  216 
* Improved locales diagnostic command 'print_dependencies'. 
217 

51313  218 
* Discontinued obsolete 'axioms' command, which has been marked as 
219 
legacy since Isabelle20092. INCOMPATIBILITY, use 'axiomatization' 

220 
instead, while observing its uniform scope for polymorphism. 

221 

51316
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* Discontinued empty name bindings in 'axiomatization'. 
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223 
INCOMPATIBILITY. 
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224 

53971  225 
* System option "proofs" has been discontinued. Instead the global 
226 
state of Proofterm.proofs is persistently compiled into logic images 

227 
as required, notably HOLProofs. Users no longer need to change 

228 
Proofterm.proofs dynamically. Minor INCOMPATIBILITY. 

229 

230 
* Syntax translation functions (print_translation etc.) always depend 

231 
on Proof.context. Discontinued former "(advanced)" option  this is 

232 
now the default. Minor INCOMPATIBILITY. 

233 

234 
* Former global reference trace_unify_fail is now available as 

235 
configuration option "unify_trace_failure" (global context only). 

236 

52463  237 
* SELECT_GOAL now retains the syntactic context of the overall goal 
238 
state (schematic variables etc.). Potential INCOMPATIBILITY in rare 

239 
situations. 

240 

51313  241 

51002
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*** HOL *** 
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243 

54032  244 
* Stronger precedence of syntax for big intersection and union on 
245 
sets, in accordance with corresponding lattice operations. 

246 
INCOMPATIBILITY. 

247 

248 
* Notation "{p:A. P}" now allows tuple patterns as well. 

249 

250 
* Nested case expressions are now translated in a separate check phase 

251 
rather than during parsing. The data for case combinators is separated 

252 
from the datatype package. The declaration attribute 

253 
"case_translation" can be used to register new case combinators: 

254 

255 
declare [[case_translation case_combinator constructor1 ... constructorN]] 

52637
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256 

52435
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257 
* Code generator: 
53160  258 
 'code_printing' unifies 'code_const' / 'code_type' / 'code_class' / 
259 
'code_instance'. 

260 
 'code_identifier' declares name hints for arbitrary identifiers in 

261 
generated code, subsuming 'code_modulename'. 

53983  262 

263 
See the isarref manual for syntax diagrams, and the HOL theories for 

264 
examples. 

52435
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265 

54032  266 
* Attibute 'code': 'code' now declares concrete and abstract code 
267 
equations uniformly. Use explicit 'code equation' and 'code abstract' 

268 
to distinguish both when desired. 

269 

270 
* Discontinued theories Code_Integer and Efficient_Nat by a more 

271 
finegrain stack of theories Code_Target_Int, Code_Binary_Nat, 

272 
Code_Target_Nat and Code_Target_Numeral. See the tutorial on code 

273 
generation for details. INCOMPATIBILITY. 

274 

275 
* Numeric types are mapped by default to target language numerals: 

276 
natural (replaces former code_numeral) and integer (replaces former 

277 
code_int). Conversions are available as integer_of_natural / 

278 
natural_of_integer / integer_of_nat / nat_of_integer (in HOL) and 

279 
Code_Numeral.integer_of_natural / Code_Numeral.natural_of_integer (in 

280 
ML). INCOMPATIBILITY. 

281 

282 
* Function package: For mutually recursive functions f and g, separate 

283 
cases rules f.cases and g.cases are generated instead of unusable 

284 
f_g.cases which exposed internal sum types. Potential INCOMPATIBILITY, 

285 
in the case that the unusable rule was used nevertheless. 

286 

287 
* Function package: For each function f, new rules f.elims are 

288 
generated, which eliminate equalities of the form "f x = t". 

289 

290 
* New command 'fun_cases' derives adhoc elimination rules for 

291 
function equations as simplified instances of f.elims, analogous to 

292 
inductive_cases. See ~~/src/HOL/ex/Fundefs.thy for some examples. 

53307  293 

54021  294 
* Lifting: 
295 
 parametrized correspondence relations are now supported: 

54378  296 
+ parametricity theorems for the raw term can be specified in 
54021  297 
the command lift_definition, which allow us to generate stronger 
298 
transfer rules 

299 
+ setup_lifting generates stronger transfer rules if parametric 

300 
correspondence relation can be generated 

301 
+ various new properties of the relator must be specified to support 

302 
parametricity 

303 
+ parametricity theorem for the Quotient relation can be specified 

304 
 setup_lifting generates domain rules for the Transfer package 

305 
 stronger reflexivity prover of respectfulness theorems for type 

306 
copies 

307 
 ===> and > are now local. The symbols can be introduced 

308 
by interpreting the locale lifting_syntax (typically in an 

309 
anonymous context) 

54378  310 
 Lifting/Transfer relevant parts of Library/Quotient_* are now in 
54021  311 
Main. Potential INCOMPATIBILITY 
312 
 new commands for restoring and deleting Lifting/Transfer context: 

313 
lifting_forget, lifting_update 

54378  314 
 the command print_quotmaps was renamed to print_quot_maps. 
54021  315 
INCOMPATIBILITY 
316 

317 
* Transfer: 

54378  318 
 better support for domains in Transfer: replace Domainp T 
54021  319 
by the actual invariant in a transferred goal 
320 
 transfer rules can have as assumptions other transfer rules 

321 
 Experimental support for transferring from the raw level to the 

322 
abstract level: Transfer.transferred attribute 

323 
 Attribute version of the transfer method: untransferred attribute 

324 

52286  325 
* Reification and reflection: 
53160  326 
 Reification is now directly available in HOLMain in structure 
327 
"Reification". 

328 
 Reflection now handles multiple lists with variables also. 

329 
 The whole reflection stack has been decomposed into conversions. 

52286  330 
INCOMPATIBILITY. 
331 

51489  332 
* Revised devices for recursive definitions over finite sets: 
333 
 Only one fundamental fold combinator on finite set remains: 

334 
Finite_Set.fold :: ('a => 'b => 'b) => 'b => 'a set => 'b 

335 
This is now identity on infinite sets. 

52745
821ce370b7fc
avoid predefined symbols  allow editing with Isabelle/jEdit in isabellenews mode;
wenzelm
parents:
52743
diff
changeset

336 
 Locales ("mini packages") for fundamental definitions with 
51489  337 
Finite_Set.fold: folding, folding_idem. 
338 
 Locales comm_monoid_set, semilattice_order_set and 

339 
semilattice_neutr_order_set for big operators on sets. 

340 
See theory Big_Operators for canonical examples. 

341 
Note that foundational constants comm_monoid_set.F and 

342 
semilattice_set.F correspond to former combinators fold_image 

343 
and fold1 respectively. These are now gone. You may use 

51490  344 
those foundational constants as substitutes, but it is 
53983  345 
preferable to interpret the above locales accordingly. 
51489  346 
 Dropped class ab_semigroup_idem_mult (special case of lattice, 
347 
no longer needed in connection with Finite_Set.fold etc.) 

348 
 Fact renames: 

349 
card.union_inter ~> card_Un_Int [symmetric] 

350 
card.union_disjoint ~> card_Un_disjoint 

351 
INCOMPATIBILITY. 

352 

51487  353 
* Locale hierarchy for abstract orderings and (semi)lattices. 
354 

53526  355 
* Complete_Partial_Order.admissible is defined outside the type class 
356 
ccpo, but with mandatory prefix ccpo. Admissibility theorems lose the 

357 
class predicate assumption or sort constraint when possible. 

53362  358 
INCOMPATIBILITY. 
359 

53160  360 
* Introduce type class "conditionally_complete_lattice": Like a 
361 
complete lattice but does not assume the existence of the top and 

362 
bottom elements. Allows to generalize some lemmas about reals and 

363 
extended reals. Removed SupInf and replaced it by the instantiation 

364 
of conditionally_complete_lattice for real. Renamed lemmas about 

365 
conditionallycomplete lattice from Sup_... to cSup_... and from 

366 
Inf_... to cInf_... to avoid hidding of similar complete lattice 

367 
lemmas. 

368 

369 
* Introduce type class linear_continuum as combination of 

370 
conditionallycomplete lattices and inner dense linorders which have 

371 
more than one element. INCOMPATIBILITY. 

372 

53983  373 
* Introduced type classes order_top and order_bot. The old classes top 
374 
and bot only contain the syntax without assumptions. INCOMPATIBILITY: 

375 
Rename bot > order_bot, top > order_top 

53683  376 

53160  377 
* Introduce type classes "no_top" and "no_bot" for orderings without 
378 
top and bottom elements. 

51732  379 

380 
* Split dense_linorder into inner_dense_order and no_top, no_bot. 

381 

382 
* Complex_Main: Unify and move various concepts from 

53160  383 
HOLMultivariate_Analysis to HOLComplex_Main. 
51732  384 

53983  385 
 Introduce type class (lin)order_topology and 
386 
linear_continuum_topology. Allows to generalize theorems about 

387 
limits and order. Instances are reals and extended reals. 

51732  388 

389 
 continuous and continuos_on from Multivariate_Analysis: 

53983  390 
"continuous" is the continuity of a function at a filter. "isCont" 
391 
is now an abbrevitation: "isCont x f == continuous (at _) f". 

392 

393 
Generalized continuity lemmas from isCont to continuous on an 

394 
arbitrary filter. 

395 

396 
 compact from Multivariate_Analysis. Use Bolzano's lemma to prove 

397 
compactness of closed intervals on reals. Continuous functions 

398 
attain infimum and supremum on compact sets. The inverse of a 

399 
continuous function is continuous, when the function is continuous 

400 
on a compact set. 

51732  401 

402 
 connected from Multivariate_Analysis. Use it to prove the 

51775
408d937c9486
revert #916271d52466; add nontopological linear_continuum type class; show linear_continuum_topology is a perfect_space
hoelzl
parents:
51774
diff
changeset

403 
intermediate value theorem. Show connectedness of intervals on 
408d937c9486
revert #916271d52466; add nontopological linear_continuum type class; show linear_continuum_topology is a perfect_space
hoelzl
parents:
51774
diff
changeset

404 
linear_continuum_topology). 
51732  405 

406 
 first_countable_topology from Multivariate_Analysis. Is used to 

53983  407 
show equivalence of properties on the neighbourhood filter of x and 
408 
on all sequences converging to x. 

409 

410 
 FDERIV: Definition of has_derivative moved to Deriv.thy. Moved 

411 
theorems from Library/FDERIV.thy to Deriv.thy and base the 

412 
definition of DERIV on FDERIV. Add variants of DERIV and FDERIV 

413 
which are restricted to sets, i.e. to represent derivatives from 

414 
left or right. 

51732  415 

416 
 Removed the withinfilter. It is replaced by the principal filter: 

417 

418 
F within X = inf F (principal X) 

419 

420 
 Introduce "at x within U" as a single constant, "at x" is now an 

421 
abbreviation for "at x within UNIV" 

422 

53983  423 
 Introduce named theorem collections tendsto_intros, 
424 
continuous_intros, continuous_on_intros and FDERIV_intros. Theorems 

425 
in tendsto_intros (or FDERIV_intros) are also available as 

426 
tendsto_eq_intros (or FDERIV_eq_intros) where the righthand side 

427 
is replaced by a congruence rule. This allows to apply them as 

428 
intro rules and then proving equivalence by the simplifier. 

51732  429 

430 
 Restructured theories in HOLComplex_Main: 

431 

432 
+ Moved RealDef and RComplete into Real 

433 

434 
+ Introduced Topological_Spaces and moved theorems about 

435 
topological spaces, filters, limits and continuity to it 

436 

437 
+ Renamed RealVector to Real_Vector_Spaces 

438 

53983  439 
+ Split Lim, SEQ, Series into Topological_Spaces, 
440 
Real_Vector_Spaces, and Limits 

51732  441 

442 
+ Moved Ln and Log to Transcendental 

443 

444 
+ Moved theorems about continuity from Deriv to Topological_Spaces 

445 

446 
 Remove various auxiliary lemmas. 

447 

448 
INCOMPATIBILITY. 

51002
496013a6eb38
remove unnecessary assumption from real_normed_vector
hoelzl
parents:
50994
diff
changeset

449 

53738  450 
* Nitpick: 
53803  451 
 Added option "spy" 
53738  452 
 Reduce incidence of "too high arity" errors 
453 

51137  454 
* Sledgehammer: 
455 
 Renamed option: 

456 
isar_shrink ~> isar_compress 

53738  457 
INCOMPATIBILITY. 
53801  458 
 Added options "isar_try0", "spy" 
53728  459 
 Better support for "isar_proofs" 
53766  460 
 MaSh has been finedtuned and now runs as a local server 
51137  461 

54032  462 
* Improved support for ad hoc overloading of constants (see also 
463 
isarref manual and ~~/src/HOL/ex/Adhoc_Overloading_Examples.thy). 

464 

465 
* Library/Polynomial.thy: 

466 
 Use lifting for primitive definitions. 

467 
 Explicit conversions from and to lists of coefficients, used for 

468 
generated code. 

469 
 Replaced recursion operator poly_rec by fold_coeffs. 

470 
 Prefer preexisting gcd operation for gcd. 

471 
 Fact renames: 

472 
poly_eq_iff ~> poly_eq_poly_eq_iff 

473 
poly_ext ~> poly_eqI 

474 
expand_poly_eq ~> poly_eq_iff 

475 
IMCOMPATIBILITY. 

476 

477 
* New Library/Simps_Case_Conv.thy: Provides commands simps_of_case and 

478 
case_of_simps to convert function definitions between a list of 

479 
equations with patterns on the lhs and a single equation with case 

480 
expressions on the rhs. See also Ex/Simps_Case_Conv_Examples.thy. 

481 

482 
* New Library/FSet.thy: type of finite sets defined as a subtype of 

483 
sets defined by Lifting/Transfer. 

484 

485 
* Discontinued theory src/HOL/Library/Eval_Witness. INCOMPATIBILITY. 

486 

487 
* Consolidation of library theories on product orders: 

488 

489 
Product_Lattice ~> Product_Order  pointwise order on products 

490 
Product_ord ~> Product_Lexorder  lexicographic order on products 

491 

492 
INCOMPATIBILITY. 

493 

53160  494 
* ImperativeHOL: The MREC combinator is considered legacy and no 
495 
longer included by default. INCOMPATIBILITY, use partial_function 

496 
instead, or import theory Legacy_Mrec as a fallback. 

497 

53983  498 
* HOLAlgebra: Discontinued theories ~~/src/HOL/Algebra/abstract and 
499 
~~/src/HOL/Algebra/poly. Existing theories should be based on 

500 
~~/src/HOL/Library/Polynomial instead. The latter provides 

501 
integration with HOL's type classes for rings. INCOMPATIBILITY. 

51517
7957d26c3334
Discontinued theories src/HOL/Algebra/abstract and .../poly.
ballarin
parents:
51490
diff
changeset

502 

54033  503 
* HOLBNF: 
54032  504 
 Various improvements to BNFbased (co)datatype package, including 
505 
new commands "primrec_new", "primcorec", and 

506 
"datatype_new_compat", as well as documentation. See 

507 
"datatypes.pdf" for details. 

508 
 New "coinduction" method to avoid some boilerplate (compared to 

509 
coinduct). 

510 
 Renamed keywords: 

511 
data ~> datatype_new 

512 
codata ~> codatatype 

513 
bnf_def ~> bnf 

514 
 Renamed many generated theorems, including 

515 
discs ~> disc 

516 
map_comp' ~> map_comp 

517 
map_id' ~> map_id 

518 
sels ~> sel 

519 
set_map' ~> set_map 

520 
sets ~> set 

521 
IMCOMPATIBILITY. 

522 

51517
7957d26c3334
Discontinued theories src/HOL/Algebra/abstract and .../poly.
ballarin
parents:
51490
diff
changeset

523 

51551  524 
*** ML *** 
525 

53971  526 
* Spec_Check is a Quickcheck tool for Isabelle/ML. The ML function 
527 
"check_property" allows to check specifications of the form "ALL x y 

528 
z. prop x y z". See also ~~/src/Tools/Spec_Check/ with its 

529 
Examples.thy in particular. 

530 

53709
84522727f9d3
improved printing of exception trace in Poly/ML 5.5.1;
wenzelm
parents:
53683
diff
changeset

531 
* Improved printing of exception trace in Poly/ML 5.5.1, with regular 
84522727f9d3
improved printing of exception trace in Poly/ML 5.5.1;
wenzelm
parents:
53683
diff
changeset

532 
tracing output in the command transaction context instead of physical 
84522727f9d3
improved printing of exception trace in Poly/ML 5.5.1;
wenzelm
parents:
53683
diff
changeset

533 
stdout. See also Toplevel.debug, Toplevel.debugging and 
84522727f9d3
improved printing of exception trace in Poly/ML 5.5.1;
wenzelm
parents:
53683
diff
changeset

534 
ML_Compiler.exn_trace. 
84522727f9d3
improved printing of exception trace in Poly/ML 5.5.1;
wenzelm
parents:
53683
diff
changeset

535 

53971  536 
* ML type "theory" is now immutable, without any special treatment of 
537 
drafts or linear updates (which could lead to "stale theory" errors in 

538 
the past). Discontinued obsolete operations like Theory.copy, 

539 
Theory.checkpoint, and the auxiliary type theory_ref. Minor 

540 
INCOMPATIBILITY. 

53164
beb4ee344c22
clarified position of Spec_Check for Isabelle/ML  it is unrelated to Isabelle/HOL;
wenzelm
parents:
53162
diff
changeset

541 

51551  542 
* More uniform naming of goal functions for skipped proofs: 
543 

544 
Skip_Proof.prove ~> Goal.prove_sorry 

545 
Skip_Proof.prove_global ~> Goal.prove_sorry_global 

546 

53971  547 
Minor INCOMPATIBILITY. 
51703
f2e92fc0c8aa
modifiers for classical wrappers operate on Proof.context instead of claset;
wenzelm
parents:
51689
diff
changeset

548 

51717
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

549 
* Simplifier tactics and tools use proper Proof.context instead of 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

550 
historic type simpset. Oldstyle declarations like addsimps, 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

551 
addsimprocs etc. operate directly on Proof.context. Raw type simpset 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

552 
retains its use as snapshot of the main Simplifier context, using 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

553 
simpset_of and put_simpset on Proof.context. INCOMPATIBILITY  port 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

554 
old tools by making them depend on (ctxt : Proof.context) instead of 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

555 
(ss : simpset), then turn (simpset_of ctxt) into ctxt. 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

556 

53971  557 
* Modifiers for classical wrappers (e.g. addWrapper, delWrapper) 
558 
operate on Proof.context instead of claset, for uniformity with addIs, 

559 
addEs, addDs etc. Note that claset_of and put_claset allow to manage 

560 
clasets separately from the context. 

561 

51717
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

562 
* Discontinued obsolete ML antiquotations @{claset} and @{simpset}. 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

563 
INCOMPATIBILITY, use @{context} instead. 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

564 

53971  565 
* Antiquotation @{theory_context A} is similar to @{theory A}, but 
566 
presents the result as initial Proof.context. 

567 

51551  568 

51398
c3d02b3518c2
discontinued "isabelle usedir" option P (remote path);
wenzelm
parents:
51382
diff
changeset

569 
*** System *** 
c3d02b3518c2
discontinued "isabelle usedir" option P (remote path);
wenzelm
parents:
51382
diff
changeset

570 

52052
892061142ba6
discontinued obsolete isabelle usedir, mkdir, make;
wenzelm
parents:
51775
diff
changeset

571 
* Discontinued obsolete isabelle usedir, mkdir, make  superseded by 
892061142ba6
discontinued obsolete isabelle usedir, mkdir, make;
wenzelm
parents:
51775
diff
changeset

572 
"isabelle build" in Isabelle2013. INCOMPATIBILITY. 
51398
c3d02b3518c2
discontinued "isabelle usedir" option P (remote path);
wenzelm
parents:
51382
diff
changeset

573 

52054
eaf17514aabd
discontinued obsolete isabelleprocess options f and u;
wenzelm
parents:
52053
diff
changeset

574 
* Discontinued obsolete isabelleprocess options f and u (former 
eaf17514aabd
discontinued obsolete isabelleprocess options f and u;
wenzelm
parents:
52053
diff
changeset

575 
administrative aliases of option e). Minor INCOMPATIBILITY. 
eaf17514aabd
discontinued obsolete isabelleprocess options f and u;
wenzelm
parents:
52053
diff
changeset

576 

52550  577 
* Discontinued obsolete isabelle print tool, and PRINT_COMMAND 
578 
settings variable. 

579 

52746  580 
* Discontinued ISABELLE_DOC_FORMAT settings variable and historic 
581 
document formats: dvi.gz, ps, ps.gz  the default document format is 

582 
always pdf. 

52743  583 

52053  584 
* Isabelle settings variable ISABELLE_BUILD_JAVA_OPTIONS allows to 
585 
specify global resources of the JVM process run by isabelle build. 

586 

52116
abf9fcfa65cf
added isabelle_scala_script wrapper  NB: portable hashbang allows exactly one executable, without additional arguments;
wenzelm
parents:
52060
diff
changeset

587 
* Toplevel executable $ISABELLE_HOME/bin/isabelle_scala_script allows 
abf9fcfa65cf
added isabelle_scala_script wrapper  NB: portable hashbang allows exactly one executable, without additional arguments;
wenzelm
parents:
52060
diff
changeset

588 
to run Isabelle/Scala source files as standalone programs. 
abf9fcfa65cf
added isabelle_scala_script wrapper  NB: portable hashbang allows exactly one executable, without additional arguments;
wenzelm
parents:
52060
diff
changeset

589 

52439
4cf3f6153eb8
improved "isabelle keywords" and "isabelle update_keywords" based on Isabelle/Scala, without requiring to build sessions first;
wenzelm
parents:
52435
diff
changeset

590 
* Improved "isabelle keywords" tool (for oldstyle ProofGeneral 
4cf3f6153eb8
improved "isabelle keywords" and "isabelle update_keywords" based on Isabelle/Scala, without requiring to build sessions first;
wenzelm
parents:
52435
diff
changeset

591 
keyword tables): use Isabelle/Scala operations, which inspect outer 
4cf3f6153eb8
improved "isabelle keywords" and "isabelle update_keywords" based on Isabelle/Scala, without requiring to build sessions first;
wenzelm
parents:
52435
diff
changeset

592 
syntax without requiring to build sessions first. 
4cf3f6153eb8
improved "isabelle keywords" and "isabelle update_keywords" based on Isabelle/Scala, without requiring to build sessions first;
wenzelm
parents:
52435
diff
changeset

593 

53971  594 
* Sessions may be organized via 'chapter' specifications in the ROOT 
595 
file, which determines a twolevel hierarchy of browser info. The old 

596 
treelike organization via implicit subsession relation (with its 

597 
tendency towards erratic fluctuation of URLs) has been discontinued. 

598 
The default chapter is called "Unsorted". Potential INCOMPATIBILITY 

599 
for HTML presentation of theories. 

600 

51398
c3d02b3518c2
discontinued "isabelle usedir" option P (remote path);
wenzelm
parents:
51382
diff
changeset

601 

c3d02b3518c2
discontinued "isabelle usedir" option P (remote path);
wenzelm
parents:
51382
diff
changeset

602 

50993  603 
New in Isabelle2013 (February 2013) 
604 
 

47887  605 

47967
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

606 
*** General *** 
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

607 

50126
3dec88149176
theorem status about oracles/futures is no longer printed by default;
wenzelm
parents:
50119
diff
changeset

608 
* Theorem status about oracles and unfinished/failed future proofs is 
3dec88149176
theorem status about oracles/futures is no longer printed by default;
wenzelm
parents:
50119
diff
changeset

609 
no longer printed by default, since it is incompatible with 
3dec88149176
theorem status about oracles/futures is no longer printed by default;
wenzelm
parents:
50119
diff
changeset

610 
incremental / parallel checking of the persistent document model. ML 
3dec88149176
theorem status about oracles/futures is no longer printed by default;
wenzelm
parents:
50119
diff
changeset

611 
function Thm.peek_status may be used to inspect a snapshot of the 
3dec88149176
theorem status about oracles/futures is no longer printed by default;
wenzelm
parents:
50119
diff
changeset

612 
ongoing evaluation process. Note that in batch mode  notably 
3dec88149176
theorem status about oracles/futures is no longer printed by default;
wenzelm
parents:
50119
diff
changeset

613 
isabelle build  the system ensures that future proofs of all 
3dec88149176
theorem status about oracles/futures is no longer printed by default;
wenzelm
parents:
50119
diff
changeset

614 
accessible theorems in the theory context are finished (as before). 
3dec88149176
theorem status about oracles/futures is no longer printed by default;
wenzelm
parents:
50119
diff
changeset

615 

49699  616 
* Configuration option show_markup controls direct inlining of markup 
617 
into the printed representation of formal entities  notably type 

618 
and sort constraints. This enables Prover IDE users to retrieve that 

619 
information via tooltips in the output window, for example. 

620 

48890
d72ca5742f80
'ML_file' evaluates ML text from a file directly within the theory, without predeclaration via 'uses';
wenzelm
parents:
48844
diff
changeset

621 
* Command 'ML_file' evaluates ML text from a file directly within the 
d72ca5742f80
'ML_file' evaluates ML text from a file directly within the theory, without predeclaration via 'uses';
wenzelm
parents:
48844
diff
changeset

622 
theory, without any predeclaration via 'uses' in the theory header. 
d72ca5742f80
'ML_file' evaluates ML text from a file directly within the theory, without predeclaration via 'uses';
wenzelm
parents:
48844
diff
changeset

623 

49243  624 
* Old command 'use' command and corresponding keyword 'uses' in the 
625 
theory header are legacy features and will be discontinued soon. 

626 
Tools that load their additional source files may imitate the 

627 
'ML_file' implementation, such that the system can take care of 

628 
dependencies properly. 

629 

47967
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

630 
* Discontinued obsolete method fastsimp / tactic fast_simp_tac, which 
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

631 
is called fastforce / fast_force_tac already since Isabelle20111. 
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

632 

50110  633 
* Updated and extended "isarref" and "implementation" manual, reduced 
634 
remaining material in old "ref" manual. 

48120
9fe0e71052a0
updated "isarref" manual, reduced remaining material in "ref" manual.
wenzelm
parents:
48111
diff
changeset

635 

51050  636 
* Improved support for auxiliary contexts that indicate block structure 
637 
for specifications. Nesting of "context fixes ... context assumes ..." 

49841  638 
and "class ... context ...". 
639 

50772
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

640 
* Attribute "consumes" allows a negative value as well, which is 
50778  641 
interpreted relatively to the total number of premises of the rule in 
50772
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

642 
the target context. This form of declaration is stable when exported 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

643 
from a nested 'context' with additional assumptions. It is the 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

644 
preferred form for definitional packages, notably cases/rules produced 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

645 
in HOL/inductive and HOL/function. 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

646 

49869
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

647 
* More informative error messages for Isar proof commands involving 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

648 
lazy enumerations (method applications etc.). 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

649 

50213  650 
* Refined 'help' command to retrieve outer syntax commands according 
651 
to name patterns (with clickable results). 

652 

47967
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

653 

49968  654 
*** Prover IDE  Isabelle/Scala/jEdit *** 
655 

656 
* Parallel terminal proofs ('by') are enabled by default, likewise 

657 
proofs that are built into packages like 'datatype', 'function'. This 

658 
allows to "run ahead" checking the theory specifications on the 

659 
surface, while the prover is still crunching on internal 

660 
justifications. Unfinished / cancelled proofs are restarted as 

661 
required to complete full proof checking eventually. 

662 

663 
* Improved output panel with tooltips, hyperlinks etc. based on the 

664 
same Rich_Text_Area as regular Isabelle/jEdit buffers. Activation of 

665 
tooltips leads to some window that supports the same recursively, 

666 
which can lead to stacks of tooltips as the semantic document content 

667 
is explored. ESCAPE closes the whole stack, individual windows may be 

668 
closed separately, or detached to become independent jEdit dockables. 

669 

50717  670 
* Improved support for commands that produce graph output: the text 
671 
message contains a clickable area to open a new instance of the graph 

672 
browser on demand. 

673 

49968  674 
* More robust incremental parsing of outer syntax (partial comments, 
675 
malformed symbols). Changing the balance of open/close quotes and 

676 
comment delimiters works more conveniently with unfinished situations 

677 
that frequently occur in user interaction. 

678 

679 
* More efficient painting and improved reactivity when editing large 

680 
files. More scalable management of formal document content. 

681 

50505
33c92722cc3d
smarter handling of tracing messages: prover process pauses and enters user dialog;
wenzelm
parents:
50455
diff
changeset

682 
* Smarter handling of tracing messages: prover process pauses after 
33c92722cc3d
smarter handling of tracing messages: prover process pauses and enters user dialog;
wenzelm
parents:
50455
diff
changeset

683 
certain number of messages per command transaction, with some user 
33c92722cc3d
smarter handling of tracing messages: prover process pauses and enters user dialog;
wenzelm
parents:
50455
diff
changeset

684 
dialog to stop or continue. This avoids swamping the frontend with 
50119
5c370a036de7
more generous tracing_limit, with explicit system option;
wenzelm
parents:
50118
diff
changeset

685 
potentially infinite message streams. 
49968  686 

687 
* More plugin options and preferences, based on Isabelle/Scala. The 

688 
jEdit plugin option panel provides access to some Isabelle/Scala 

689 
options, including tuning parameters for editor reactivity and color 

690 
schemes. 

691 

50184  692 
* Dockable window "Symbols" provides some editing support for Isabelle 
693 
symbols. 

694 

51082  695 
* Dockable window "Monitor" shows ML runtime statistics. Note that 
696 
continuous display of the chart slows down the system. 

50701  697 

50183  698 
* Improved editing support for control styles: subscript, superscript, 
699 
bold, reset of style  operating on single symbols or text 

50198
0c7b351a6871
added convenience actions isabelle.increasefontsize and isabelle.decreasefontsize;
wenzelm
parents:
50184
diff
changeset

700 
selections. Cf. keyboard shortcuts C+e DOWN/UP/RIGHT/LEFT. 
0c7b351a6871
added convenience actions isabelle.increasefontsize and isabelle.decreasefontsize;
wenzelm
parents:
50184
diff
changeset

701 

0c7b351a6871
added convenience actions isabelle.increasefontsize and isabelle.decreasefontsize;
wenzelm
parents:
50184
diff
changeset

702 
* Actions isabelle.increasefontsize and isabelle.decreasefontsize 
0c7b351a6871
added convenience actions isabelle.increasefontsize and isabelle.decreasefontsize;
wenzelm
parents:
50184
diff
changeset

703 
adjust the main text area font size, and its derivatives for output, 
50836  704 
tooltips etc. Cf. keyboard shortcuts CPLUS and CMINUS, which often 
705 
need to be adapted to local keyboard layouts. 

50183  706 

50730  707 
* More reactive completion popup by default: use \t (TAB) instead of 
708 
\n (NEWLINE) to minimize intrusion into regular flow of editing. See 

709 
also "Plugin Options / SideKick / General / Code Completion Options". 

710 

50406
c28753665b8e
documentation for isabelle build_dialog and its implicit use in isabelle jedit;
wenzelm
parents:
50232
diff
changeset

711 
* Implicit check and build dialog of the specified logic session 
c28753665b8e
documentation for isabelle build_dialog and its implicit use in isabelle jedit;
wenzelm
parents:
50232
diff
changeset

712 
image. For example, HOL, HOLCF, HOLNominal can be produced on 
c28753665b8e
documentation for isabelle build_dialog and its implicit use in isabelle jedit;
wenzelm
parents:
50232
diff
changeset

713 
demand, without bundling big platformdependent heap images in the 
c28753665b8e
documentation for isabelle build_dialog and its implicit use in isabelle jedit;
wenzelm
parents:
50232
diff
changeset

714 
Isabelle distribution. 
c28753665b8e
documentation for isabelle build_dialog and its implicit use in isabelle jedit;
wenzelm
parents:
50232
diff
changeset

715 

49968  716 
* Uniform Java 7 platform on Linux, Mac OS X, Windows: recent updates 
717 
from Oracle provide better multiplatform experience. This version is 

718 
now bundled exclusively with Isabelle. 

719 

720 

48205  721 
*** Pure *** 
722 

48431
6efff142bb54
restrict unqualified imports from Haskell Prelude to a small set of fundamental operations
haftmann
parents:
48428
diff
changeset

723 
* Code generation for Haskell: restrict unqualified imports from 
6efff142bb54
restrict unqualified imports from Haskell Prelude to a small set of fundamental operations
haftmann
parents:
48428
diff
changeset

724 
Haskell Prelude to a small set of fundamental operations. 
6efff142bb54
restrict unqualified imports from Haskell Prelude to a small set of fundamental operations
haftmann
parents:
48428
diff
changeset

725 

50646  726 
* Command 'export_code': relative file names are interpreted 
727 
relatively to master directory of current theory rather than the 

728 
rather arbitrary current working directory. INCOMPATIBILITY. 

48371  729 

48205  730 
* Discontinued obsolete attribute "COMP". Potential INCOMPATIBILITY, 
731 
use regular rule composition via "OF" / "THEN", or explicit proof 

732 
structure instead. Note that Isabelle/ML provides a variety of 

733 
operators like COMP, INCR_COMP, COMP_INCR, which need to be applied 

734 
with some care where this is really required. 

735 

48792  736 
* Command 'typ' supports an additional variant with explicit sort 
737 
constraint, to infer and check the most general type conforming to a 

51063  738 
given sort. Example (in HOL): 
48792  739 

740 
typ "_ * _ * bool * unit" :: finite 

741 

50716  742 
* Command 'locale_deps' visualizes all locales and their relations as 
743 
a Hasse diagram. 

744 

48205  745 

48013
44de84112a67
added optimisation for equational premises in Quickcheck; added some Quickcheck examples; NEWS
bulwahn
parents:
47979
diff
changeset

746 
*** HOL *** 
44de84112a67
added optimisation for equational premises in Quickcheck; added some Quickcheck examples; NEWS
bulwahn
parents:
47979
diff
changeset

747 

50646  748 
* Sledgehammer: 
749 

750 
 Added MaSh relevance filter based on machinelearning; see the 

751 
Sledgehammer manual for details. 

752 
 Polished Isar proofs generated with "isar_proofs" option. 

753 
 Rationalized type encodings ("type_enc" option). 

50720  754 
 Renamed "kill_provers" subcommand to "kill_all". 
50646  755 
 Renamed options: 
756 
isar_proof ~> isar_proofs 

757 
isar_shrink_factor ~> isar_shrink 

758 
max_relevant ~> max_facts 

759 
relevance_thresholds ~> fact_thresholds 

760 

761 
* Quickcheck: added an optimisation for equality premises. It is 

762 
switched on by default, and can be switched off by setting the 

763 
configuration quickcheck_optimise_equality to false. 

764 

50878  765 
* Quotient: only one quotient can be defined by quotient_type 
766 
INCOMPATIBILITY. 

767 

768 
* Lifting: 

769 
 generation of an abstraction function equation in lift_definition 

770 
 quot_del attribute 

771 
 renamed no_abs_code > no_code (INCOMPATIBILITY.) 

772 

50646  773 
* Simproc "finite_Collect" rewrites set comprehensions into pointfree 
774 
expressions. 

775 

776 
* Preprocessing of the code generator rewrites set comprehensions into 

777 
pointfree expressions. 

778 

779 
* The SMT solver Z3 has now by default a restricted set of directly 

780 
supported features. For the full set of features (div/mod, nonlinear 

781 
arithmetic, datatypes/records) with potential proof reconstruction 

782 
failures, enable the configuration option "z3_with_extensions". Minor 

783 
INCOMPATIBILITY. 

49948
744934b818c7
moved quite generic material from theory Enum to more appropriate places
haftmann
parents:
49918
diff
changeset

784 

49836
c13b39542972
simplified 'typedef' specifications: discontinued implicit set definition and alternative name;
wenzelm
parents:
49822
diff
changeset

785 
* Simplified 'typedef' specifications: historical options for implicit 
c13b39542972
simplified 'typedef' specifications: discontinued implicit set definition and alternative name;
wenzelm
parents:
49822
diff
changeset

786 
set definition and alternative name have been discontinued. The 
c13b39542972
simplified 'typedef' specifications: discontinued implicit set definition and alternative name;
wenzelm
parents:
49822
diff
changeset

787 
former behavior of "typedef (open) t = A" is now the default, but 
c13b39542972
simplified 'typedef' specifications: discontinued implicit set definition and alternative name;
wenzelm
parents:
49822
diff
changeset

788 
written just "typedef t = A". INCOMPATIBILITY, need to adapt theories 
c13b39542972
simplified 'typedef' specifications: discontinued implicit set definition and alternative name;
wenzelm
parents:
49822
diff
changeset

789 
accordingly. 
c13b39542972
simplified 'typedef' specifications: discontinued implicit set definition and alternative name;
wenzelm
parents:
49822
diff
changeset

790 

50646  791 
* Removed constant "chars"; prefer "Enum.enum" on type "char" 
792 
directly. INCOMPATIBILITY. 

793 

794 
* Moved operation product, sublists and n_lists from theory Enum to 

795 
List. INCOMPATIBILITY. 

49822
0cfc1651be25
simplified construction of fold combinator on multisets;
haftmann
parents:
49770
diff
changeset

796 

49739  797 
* Theorem UN_o generalized to SUP_comp. INCOMPATIBILITY. 
798 

49738  799 
* Class "comm_monoid_diff" formalises properties of bounded 
49388  800 
subtraction, with natural numbers and multisets as typical instances. 
801 

50646  802 
* Added combinator "Option.these" with type "'a option set => 'a set". 
803 

804 
* Theory "Transitive_Closure": renamed lemmas 

805 

806 
reflcl_tranclp > reflclp_tranclp 

807 
rtranclp_reflcl > rtranclp_reflclp 

808 

809 
INCOMPATIBILITY. 

810 

811 
* Theory "Rings": renamed lemmas (in class semiring) 

812 

813 
left_distrib ~> distrib_right 

814 
right_distrib ~> distrib_left 

815 

816 
INCOMPATIBILITY. 

817 

818 
* Generalized the definition of limits: 

819 

820 
 Introduced the predicate filterlim (LIM x F. f x :> G) which 

821 
expresses that when the input values x converge to F then the 

822 
output f x converges to G. 

823 

824 
 Added filters for convergence to positive (at_top) and negative 

825 
infinity (at_bot). 

826 

827 
 Moved infinity in the norm (at_infinity) from 

828 
Multivariate_Analysis to Complex_Main. 

829 

830 
 Removed real_tendsto_inf, it is superseded by "LIM x F. f x :> 

831 
at_top". 

832 

833 
INCOMPATIBILITY. 

834 

835 
* Theory "Library/Option_ord" provides instantiation of option type to 

836 
lattice type classes. 

837 

838 
* Theory "Library/Multiset": renamed 

839 

840 
constant fold_mset ~> Multiset.fold 

841 
fact fold_mset_commute ~> fold_mset_comm 

842 

843 
INCOMPATIBILITY. 

844 

845 
* Renamed theory Library/List_Prefix to Library/Sublist, with related 

846 
changes as follows. 

847 

848 
 Renamed constants (and related lemmas) 

49145  849 

850 
prefix ~> prefixeq 

851 
strict_prefix ~> prefix 

852 

50646  853 
 Replaced constant "postfix" by "suffixeq" with swapped argument 
854 
order (i.e., "postfix xs ys" is now "suffixeq ys xs") and dropped 

855 
old infix syntax "xs >>= ys"; use "suffixeq ys xs" instead. 

856 
Renamed lemmas accordingly. 

857 

858 
 Added constant "list_hembeq" for homeomorphic embedding on 

859 
lists. Added abbreviation "sublisteq" for special case 

860 
"list_hembeq (op =)". 

861 

862 
 Theory Library/Sublist no longer provides "order" and "bot" type 

863 
class instances for the prefix order (merely corresponding locale 

864 
interpretations). The type class instances are now in theory 

865 
Library/Prefix_Order. 

866 

867 
 The sublist relation of theory Library/Sublist_Order is now based 

868 
on "Sublist.sublisteq". Renamed lemmas accordingly: 

50516  869 

870 
le_list_append_le_same_iff ~> Sublist.sublisteq_append_le_same_iff 

871 
le_list_append_mono ~> Sublist.list_hembeq_append_mono 

872 
le_list_below_empty ~> Sublist.list_hembeq_Nil, Sublist.list_hembeq_Nil2 

873 
le_list_Cons_EX ~> Sublist.list_hembeq_ConsD 

874 
le_list_drop_Cons2 ~> Sublist.sublisteq_Cons2' 

875 
le_list_drop_Cons_neq ~> Sublist.sublisteq_Cons2_neq 

876 
le_list_drop_Cons ~> Sublist.sublisteq_Cons' 

877 
le_list_drop_many ~> Sublist.sublisteq_drop_many 

878 
le_list_filter_left ~> Sublist.sublisteq_filter_left 

879 
le_list_rev_drop_many ~> Sublist.sublisteq_rev_drop_many 

880 
le_list_rev_take_iff ~> Sublist.sublisteq_append 

881 
le_list_same_length ~> Sublist.sublisteq_same_length 

882 
le_list_take_many_iff ~> Sublist.sublisteq_append' 

49145  883 
less_eq_list.drop ~> less_eq_list_drop 
884 
less_eq_list.induct ~> less_eq_list_induct 

50516  885 
not_le_list_length ~> Sublist.not_sublisteq_length 
49145  886 

50646  887 
INCOMPATIBILITY. 
888 

889 
* New theory Library/Countable_Set. 

890 

891 
* Theory Library/Debug and Library/Parallel provide debugging and 

892 
parallel execution for code generated towards Isabelle/ML. 

893 

894 
* Theory Library/FuncSet: Extended support for Pi and extensional and 

895 
introduce the extensional dependent function space "PiE". Replaced 

896 
extensional_funcset by an abbreviation, and renamed lemmas from 

897 
extensional_funcset to PiE as follows: 

898 

899 
extensional_empty ~> PiE_empty 

900 
extensional_funcset_empty_domain ~> PiE_empty_domain 

901 
extensional_funcset_empty_range ~> PiE_empty_range 

902 
extensional_funcset_arb ~> PiE_arb 

903 
extensional_funcset_mem ~> PiE_mem 

904 
extensional_funcset_extend_domainI ~> PiE_fun_upd 

905 
extensional_funcset_restrict_domain ~> fun_upd_in_PiE 

906 
extensional_funcset_extend_domain_eq ~> PiE_insert_eq 

907 
card_extensional_funcset ~> card_PiE 

908 
finite_extensional_funcset ~> finite_PiE 

909 

910 
INCOMPATIBILITY. 

911 

912 
* Theory Library/FinFun: theory of almost everywhere constant 

913 
functions (supersedes the AFP entry "Code Generation for Functions as 

914 
Data"). 

915 

916 
* Theory Library/Phantom: generic phantom type to make a type 

917 
parameter appear in a constant's type. This alternative to adding 

918 
TYPE('a) as another parameter avoids unnecessary closures in generated 

919 
code. 

920 

921 
* Theory Library/RBT_Impl: efficient construction of redblack trees 

922 
from sorted associative lists. Merging two trees with rbt_union may 

923 
return a structurally different tree than before. Potential 

924 
INCOMPATIBILITY. 

925 

926 
* Theory Library/IArray: immutable arrays with code generation. 

927 

928 
* Theory Library/Finite_Lattice: theory of finite lattices. 

929 

930 
* HOL/Multivariate_Analysis: replaced 

931 

932 
"basis :: 'a::euclidean_space => nat => real" 

933 
"\<Chi>\<Chi> :: (nat => real) => 'a::euclidean_space" 

934 

935 
on euclidean spaces by using the inner product "_ \<bullet> _" with 

936 
vectors from the Basis set: "\<Chi>\<Chi> i. f i" is superseded by 

937 
"SUM i : Basis. f i * r i". 

938 

939 
With this change the following constants are also changed or removed: 

940 

941 
DIM('a) :: nat ~> card (Basis :: 'a set) (is an abbreviation) 

942 
a $$ i ~> inner a i (where i : Basis) 

943 
cart_base i removed 

944 
\<pi>, \<pi>' removed 

50526
899c9c4e4a4c
Remove the indexed basis from the definition of euclidean spaces and only use the set of Basis vectors
hoelzl
parents:
50525
diff
changeset

945 

899c9c4e4a4c
Remove the indexed basis from the definition of euclidean spaces and only use the set of Basis vectors
hoelzl
parents:
50525
diff
changeset

946 
Theorems about these constants where removed. 
899c9c4e4a4c
Remove the indexed basis from the definition of euclidean spaces and only use the set of Basis vectors
hoelzl
parents:
50525
diff
changeset

947 

899c9c4e4a4c
Remove the indexed basis from the definition of euclidean spaces and only use the set of Basis vectors
hoelzl
parents:
50525
diff
changeset

948 
Renamed lemmas: 
899c9c4e4a4c
Remove the indexed basis from the definition of euclidean spaces and only use the set of Basis vectors
hoelzl
parents:
50525
diff
changeset

949 

50646  950 
component_le_norm ~> Basis_le_norm 
951 
euclidean_eq ~> euclidean_eq_iff 

952 
differential_zero_maxmin_component ~> differential_zero_maxmin_cart 

953 
euclidean_simps ~> inner_simps 

954 
independent_basis ~> independent_Basis 

955 
span_basis ~> span_Basis 

956 
in_span_basis ~> in_span_Basis 

957 
norm_bound_component_le ~> norm_boound_Basis_le 

958 
norm_bound_component_lt ~> norm_boound_Basis_lt 

959 
component_le_infnorm ~> Basis_le_infnorm 

960 

961 
INCOMPATIBILITY. 

50526
899c9c4e4a4c
Remove the indexed basis from the definition of euclidean spaces and only use the set of Basis vectors
hoelzl
parents:
50525
diff
changeset

962 

50141  963 
* HOL/Probability: 
50646  964 

965 
 Added simproc "measurable" to automatically prove measurability. 

966 

967 
 Added induction rules for sigma sets with disjoint union 

968 
(sigma_sets_induct_disjoint) and for Borelmeasurable functions 

969 
(borel_measurable_induct). 

970 

971 
 Added the DaniellKolmogorov theorem (the existence the limit of a 

972 
projective family). 

973 

974 
* HOL/Cardinals: Theories of ordinals and cardinals (supersedes the 

975 
AFP entry "Ordinals_and_Cardinals"). 

976 

977 
* HOL/BNF: New (co)datatype package based on bounded natural functors 

978 
with support for mixed, nested recursion and interesting nonfree 

979 
datatypes. 

48094  980 

50991  981 
* HOL/Finite_Set and Relation: added new set and relation operations 
50878  982 
expressed by Finite_Set.fold. 
983 

984 
* New theory HOL/Library/RBT_Set: implementation of sets by redblack 

985 
trees for the code generator. 

986 

987 
* HOL/Library/RBT and HOL/Library/Mapping have been converted to 

988 
Lifting/Transfer. 

989 
possible INCOMPATIBILITY. 

990 

991 
* HOL/Set: renamed Set.project > Set.filter 

992 
INCOMPATIBILITY. 

993 

48120
9fe0e71052a0
updated "isarref" manual, reduced remaining material in "ref" manual.
wenzelm
parents:
48111
diff
changeset

994 

48206  995 
*** Document preparation *** 
996 

50646  997 
* Dropped legacy antiquotations "term_style" and "thm_style", since 
998 
styles may be given as arguments to "term" and "thm" already. 

999 
Discontinued legacy styles "prem1" .. "prem19". 

1000 

1001 
* Default LaTeX rendering for \<euro> is now based on eurosym package, 

1002 
instead of slightly exotic babel/greek. 

48206  1003 

48616
be8002ee43d8
document variant NAME may use different LaTeX entry point document/root_NAME.tex if that file exists;
wenzelm
parents:
48586
diff
changeset

1004 
* Document variant NAME may use different LaTeX entry point 
be8002ee43d8
document variant NAME may use different LaTeX entry point document/root_NAME.tex if that file exists;
wenzelm
parents:
48586
diff
changeset

1005 
document/root_NAME.tex if that file exists, instead of the common 
be8002ee43d8
document variant NAME may use different LaTeX entry point document/root_NAME.tex if that file exists;
wenzelm
parents:
48586
diff
changeset

1006 
document/root.tex. 
be8002ee43d8
document variant NAME may use different LaTeX entry point document/root_NAME.tex if that file exists;
wenzelm
parents:
48586
diff
changeset

1007 

48657
63ef2f0cf8bb
simplified custom document/build script, instead of oldstyle document/IsaMakefile;
wenzelm
parents:
48616
diff
changeset

1008 
* Simplified custom document/build script, instead of oldstyle 
63ef2f0cf8bb
simplified custom document/build script, instead of oldstyle document/IsaMakefile;
wenzelm
parents:
48616
diff
changeset

1009 
document/IsaMakefile. Minor INCOMPATIBILITY. 
63ef2f0cf8bb
simplified custom document/build script, instead of oldstyle document/IsaMakefile;
wenzelm
parents:
48616
diff
changeset

1010 

48206  1011 

48992  1012 
*** ML *** 
1013 

50646  1014 
* The default limit for maximum number of worker threads is now 8, 
1015 
instead of 4, in correspondence to capabilities of contemporary 

1016 
hardware and Poly/ML runtime system. 

1017 

49869
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1018 
* Type Seq.results and related operations support embedded error 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1019 
messages within lazy enumerations, and thus allow to provide 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1020 
informative errors in the absence of any usable results. 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1021 

48992  1022 
* Renamed Position.str_of to Position.here to emphasize that this is a 
1023 
formal device to inline positions into message text, but not 

1024 
necessarily printing visible text. 

1025 

1026 

48206  1027 
*** System *** 
1028 

48585
a82910dd2270
announce advanced support for Isabelle sessions and build management;
wenzelm
parents:
48574
diff
changeset

1029 
* Advanced support for Isabelle sessions and build management, see 
a82910dd2270
announce advanced support for Isabelle sessions and build management;
wenzelm
parents:
48574
diff
changeset

1030 
"system" manual for the chapter of that name, especially the "isabelle 
51056  1031 
build" tool and its examples. The "isabelle mkroot" tool prepares 
1032 
session root directories for use with "isabelle build", similar to 

1033 
former "isabelle mkdir" for "isabelle usedir". Note that this affects 

1034 
document preparation as well. INCOMPATIBILITY, isabelle usedir / 

48736  1035 
mkdir / make are rendered obsolete. 
1036 

51056  1037 
* Discontinued obsolete Isabelle/build script, it is superseded by the 
1038 
regular isabelle build tool. For example: 

1039 

1040 
isabelle build s b HOL 

1041 

48736  1042 
* Discontinued obsolete "isabelle makeall". 
48585
a82910dd2270
announce advanced support for Isabelle sessions and build management;
wenzelm
parents:
48574
diff
changeset

1043 

48722
a5e3ba7cbb2a
discontinued obsolete IsaMakefile and ROOT.ML files from the Isabelle distribution;
wenzelm
parents:
48693
diff
changeset

1044 
* Discontinued obsolete IsaMakefile and ROOT.ML files from the 
a5e3ba7cbb2a
discontinued obsolete IsaMakefile and ROOT.ML files from the Isabelle distribution;
wenzelm
parents:
48693
diff
changeset

1045 
Isabelle distribution, except for rudimentary src/HOL/IsaMakefile that 
a5e3ba7cbb2a
discontinued obsolete IsaMakefile and ROOT.ML files from the Isabelle distribution;
wenzelm
parents:
48693
diff
changeset

1046 
provides some traditional targets that invoke "isabelle build". Note 
a5e3ba7cbb2a
discontinued obsolete IsaMakefile and ROOT.ML files from the Isabelle distribution;
wenzelm
parents:
48693
diff
changeset

1047 
that this is inefficient! Applications of Isabelle/HOL involving 
a5e3ba7cbb2a
discontinued obsolete IsaMakefile and ROOT.ML files from the Isabelle distribution;
wenzelm
parents:
48693
diff
changeset

1048 
"isabelle make" should be upgraded to use "isabelle build" directly. 
a5e3ba7cbb2a
discontinued obsolete IsaMakefile and ROOT.ML files from the Isabelle distribution;
wenzelm
parents:
48693
diff
changeset

1049 

48693
ceeea46bdeba
"isabelle options" prints Isabelle system options;
wenzelm
parents:
48683
diff
changeset

1050 
* The "isabelle options" tool prints Isabelle system options, as 
ceeea46bdeba
"isabelle options" prints Isabelle system options;
wenzelm
parents:
48683
diff
changeset

1051 
required for "isabelle build", for example. 
ceeea46bdeba
"isabelle options" prints Isabelle system options;
wenzelm
parents:
48683
diff
changeset

1052 

50646  1053 
* The "isabelle logo" tool produces EPS and PDF format simultaneously. 
1054 
Minor INCOMPATIBILITY in commandline options. 

1055 

1056 
* The "isabelle install" tool has now a simpler commandline. Minor 

1057 
INCOMPATIBILITY. 

1058 

48844  1059 
* The "isabelle components" tool helps to resolve addon components 
1060 
that are not bundled, or referenced from a barebones repository 

1061 
version of Isabelle. 

1062 

50646  1063 
* Settings variable ISABELLE_PLATFORM_FAMILY refers to the general 
1064 
platform family: "linux", "macos", "windows". 

1065 

1066 
* The ML system is configured as regular component, and no longer 

1067 
picked up from some surrounding directory. Potential INCOMPATIBILITY 

1068 
for homemade settings. 

50132  1069 

50701  1070 
* Improved ML runtime statistics (heap, threads, future tasks etc.). 
1071 

48206  1072 
* Discontinued support for Poly/ML 5.2.1, which was the last version 
1073 
without exception positions and advanced ML compiler/toplevel 

1074 
configuration. 

1075 

48574  1076 
* Discontinued special treatment of Proof General  no longer guess 
1077 
PROOFGENERAL_HOME based on accidental filesystem layout. Minor 

1078 
INCOMPATIBILITY: provide PROOFGENERAL_HOME and PROOFGENERAL_OPTIONS 

1079 
settings manually, or use a Proof General version that has been 

1080 
bundled as Isabelle component. 

48206  1081 

50182  1082 

48120
9fe0e71052a0
updated "isarref" manual, reduced remaining material in "ref" manual.
wenzelm
parents:
48111
diff
changeset

1083 

47462  1084 
New in Isabelle2012 (May 2012) 
1085 
 

45109  1086 

45593  1087 
*** General *** 
1088 

45614  1089 
* Prover IDE (PIDE) improvements: 
1090 

47585  1091 
 more robust Sledgehammer integration (as before the sledgehammer 
47806  1092 
commandline needs to be typed into the source buffer) 
45614  1093 
 markup for bound variables 
47806  1094 
 markup for types of term variables (displayed as tooltips) 
46956
9ff441f295c2
Isabelle/jEdit supports userdefined Isar commands within the running session;
wenzelm
parents:
46948
diff
changeset

1095 
 support for userdefined Isar commands within the running session 
47158  1096 
 improved support for Unicode outside original 16bit range 
1097 
e.g. glyph for \<A> (thanks to jEdit 4.5.1) 

45614  1098 

47806  1099 
* Forward declaration of outer syntax keywords within the theory 
1100 
header  minor INCOMPATIBILITY for userdefined commands. Allow new 

1101 
commands to be used in the same theory where defined. 

46485  1102 

47482
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1103 
* Auxiliary contexts indicate block structure for specifications with 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1104 
additional parameters and assumptions. Such unnamed contexts may be 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1105 
nested within other targets, like 'theory', 'locale', 'class', 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1106 
'instantiation' etc. Results from the local context are generalized 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1107 
accordingly and applied to the enclosing target context. Example: 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1108 

a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1109 
context 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1110 
fixes x y z :: 'a 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1111 
assumes xy: "x = y" and yz: "y = z" 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1112 
begin 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1113 

a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1114 
lemma my_trans: "x = z" using xy yz by simp 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1115 

a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1116 
end 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1117 

a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1118 
thm my_trans 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1119 

a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1120 
The most basic application is to factorout context elements of 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1121 
several fixes/assumes/shows theorem statements, e.g. see 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1122 
~~/src/HOL/Isar_Examples/Group_Context.thy 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1123 

a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1124 
Any other local theory specification element works within the "context 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1125 
... begin ... end" block as well. 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1126 

47484  1127 
* Bundled declarations associate attributed fact expressions with a 
1128 
given name in the context. These may be later included in other 

1129 
contexts. This allows to manage context extensions casually, without 

47855  1130 
the logical dependencies of locales and locale interpretation. See 
1131 
commands 'bundle', 'include', 'including' etc. in the isarref manual. 

47484  1132 

47829  1133 
* Commands 'lemmas' and 'theorems' allow local variables using 'for' 
1134 
declaration, and results are standardized before being stored. Thus 

1135 
oldstyle "standard" after instantiation or composition of facts 

1136 
becomes obsolete. Minor INCOMPATIBILITY, due to potential change of 

1137 
indices of schematic variables. 

1138 

1139 
* Rule attributes in local theory declarations (e.g. locale or class) 

1140 
are now statically evaluated: the resulting theorem is stored instead 

1141 
of the original expression. INCOMPATIBILITY in rare situations, where 

1142 
the historic accident of dynamic reevaluation in interpretations 

1143 
etc. was exploited. 

1144 

1145 
* New tutorial "Programming and Proving in Isabelle/HOL" 

1146 
("progprove"). It completely supersedes "A Tutorial Introduction to 

1147 
Structured Isar Proofs" ("isaroverview"), which has been removed. It 

1148 
also supersedes "Isabelle/HOL, A Proof Assistant for HigherOrder 

1149 
Logic" as the recommended beginners tutorial, but does not cover all 

1150 
of the material of that old tutorial. 

1151 

1152 
* Updated and extended reference manuals: "isarref", 

1153 
"implementation", "system"; reduced remaining material in old "ref" 

1154 
manual. 

1155 

1156 

1157 
*** Pure *** 

1158 

46976
80123a220219
'definition' no longer exports the foundational "raw_def";
wenzelm
parents:
46966
diff
changeset

1159 
* Command 'definition' no longer exports the foundational "raw_def" 
80123a220219
'definition' no longer exports the foundational "raw_def";
wenzelm
parents:
46966
diff
changeset

1160 
into the user context. Minor INCOMPATIBILITY, may use the regular 
80123a220219
'definition' no longer exports the foundational "raw_def";
wenzelm
parents:
46966
diff
changeset

1161 
"def" result with attribute "abs_def" to imitate the old version. 
80123a220219
'definition' no longer exports the foundational "raw_def";
wenzelm
parents:
46966
diff
changeset

1162 

47855  1163 
* Attribute "abs_def" turns an equation of the form "f x y == t" into 
1164 
"f == %x y. t", which ensures that "simp" or "unfold" steps always 

1165 
expand it. This also works for objectlogic equality. (Formerly 

1166 
undocumented feature.) 

1167 

47856  1168 
* Sort constraints are now propagated in simultaneous statements, just 
1169 
like type constraints. INCOMPATIBILITY in rare situations, where 

1170 
distinct sorts used to be assigned accidentally. For example: 

1171 

1172 
lemma "P (x::'a::foo)" and "Q (y::'a::bar)"  "now illegal" 

1173 

1174 
lemma "P (x::'a)" and "Q (y::'a::bar)" 

1175 
 "now uniform 'a::bar instead of default sort for first occurrence (!)" 

1176 

1177 
* Rule composition via attribute "OF" (or ML functions OF/MRS) is more 

1178 
tolerant against multiple unifiers, as long as the final result is 

1179 
unique. (As before, rules are composed in canonical righttoleft 

1180 
order to accommodate newly introduced premises.) 

1181 

47806  1182 
* Renamed some inner syntax categories: 
1183 

1184 
num ~> num_token 

1185 
xnum ~> xnum_token 

1186 
xstr ~> str_token 

1187 

1188 
Minor INCOMPATIBILITY. Note that in practice "num_const" or 

1189 
"num_position" etc. are mainly used instead (which also include 

1190 
position information via constraints). 

1191 

47829  1192 
* Simplified configuration options for syntax ambiguity: see 
1193 
"syntax_ambiguity_warning" and "syntax_ambiguity_limit" in isarref 

1194 
manual. Minor INCOMPATIBILITY. 

1195 

47856  1196 
* Discontinued configuration option "syntax_positions": atomic terms 
1197 
in parse trees are always annotated by position constraints. 

45134  1198 

47464  1199 
* Old code generator for SML and its commands 'code_module', 
45383  1200 
'code_library', 'consts_code', 'types_code' have been discontinued. 
46028
9f113cdf3d66
attribute code_abbrev superseedes code_unfold_post
haftmann
parents:
46014
diff
changeset

1201 
Use commands of the generic code generator instead. INCOMPATIBILITY. 
45383  1202 

47464  1203 
* Redundant attribute "code_inline" has been discontinued. Use 
1204 
"code_unfold" instead. INCOMPATIBILITY. 

1205 

1206 
* Dropped attribute "code_unfold_post" in favor of the its dual 

1207 
"code_abbrev", which yields a common pattern in definitions like 

46028
9f113cdf3d66
attribute code_abbrev superseedes code_unfold_post
haftmann
parents:
46014
diff
changeset

1208 

9f113cdf3d66
attribute code_abbrev superseedes code_unfold_post
haftmann
parents:
46014
diff
changeset

1209 
definition [code_abbrev]: "f = t" 
9f113cdf3d66
attribute code_abbrev superseedes code_unfold_post
haftmann
parents:
46014
diff
changeset

1210 

9f113cdf3d66
attribute code_abbrev superseedes code_unfold_post
haftmann
parents:
46014
diff
changeset

1211 
INCOMPATIBILITY. 
45383  1212 

47856  1213 
* Obsolete 'types' command has been discontinued. Use 'type_synonym' 
1214 
instead. INCOMPATIBILITY. 

1215 

1216 
* Discontinued old "prems" fact, which used to refer to the accidental 

1217 
collection of foundational premises in the context (already marked as 

1218 
legacy since Isabelle2011). 

47855  1219 

45427
fca432074fb2
sort assignment before simultaneous term_check, not isolated parse_term;
wenzelm
parents:
45398
diff
changeset

1220 

45122  1221 
*** HOL *** 
1222 

47464  1223 
* Type 'a set is now a proper type constructor (just as before 
1224 
Isabelle2008). Definitions mem_def and Collect_def have disappeared. 

1225 
Nontrivial INCOMPATIBILITY. For developments keeping predicates and 

47855  1226 
sets separate, it is often sufficient to rephrase some set S that has 
1227 
been accidentally used as predicates by "%x. x : S", and some 

1228 
predicate P that has been accidentally used as set by "{x. P x}". 

1229 
Corresponding proofs in a first step should be pruned from any 

1230 
tinkering with former theorems mem_def and Collect_def as far as 

1231 
possible. 

1232 

1233 
For developments which deliberately mix predicates and sets, a 

47464  1234 
planning step is necessary to determine what should become a predicate 
1235 
and what a set. It can be helpful to carry out that step in 

1236 
Isabelle20111 before jumping right into the current release. 

1237 

47855  1238 
* Code generation by default implements sets as container type rather 
1239 
than predicates. INCOMPATIBILITY. 

1240 

1241 
* New type synonym 'a rel = ('a * 'a) set 

1242 

47464  1243 
* The representation of numerals has changed. Datatype "num" 
1244 
represents strictly positive binary numerals, along with functions 

1245 
"numeral :: num => 'a" and "neg_numeral :: num => 'a" to represent 

47855  1246 
positive and negated numeric literals, respectively. See also 
1247 
definitions in ~~/src/HOL/Num.thy. Potential INCOMPATIBILITY, some 

1248 
user theories may require adaptations as follows: 

47108
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1249 

2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1250 
 Theorems with number_ring or number_semiring constraints: These 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1251 
classes are gone; use comm_ring_1 or comm_semiring_1 instead. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1252 

2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1253 
 Theories defining numeric types: Remove number, number_semiring, 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1254 
and number_ring instances. Defer all theorems about numerals until 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1255 
after classes one and semigroup_add have been instantiated. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1256 

2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1257 
 Numeralonly simp rules: Replace each rule having a "number_of v" 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1258 
pattern with two copies, one for numeral and one for neg_numeral. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1259 

2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1260 
 Theorems about subclasses of semiring_1 or ring_1: These classes 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1261 
automatically support numerals now, so more simp rules and 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1262 
simprocs may now apply within the proof. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1263 

2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1264 
 Definitions and theorems using old constructors Pls/Min/Bit0/Bit1: 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1265 
Redefine using other integer operations. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1266 

47855  1267 
* Transfer: New package intended to generalize the existing 
1268 
"descending" method and related theorem attributes from the Quotient 

1269 
package. (Not all functionality is implemented yet, but future 

1270 
development will focus on Transfer as an eventual replacement for the 

1271 
corresponding parts of the Quotient package.) 

47809  1272 

1273 
 transfer_rule attribute: Maintains a collection of transfer rules, 

1274 
which relate constants at two different types. Transfer rules may 

1275 
relate different type instances of the same polymorphic constant, 

1276 
or they may relate an operation on a raw type to a corresponding 

1277 
operation on an abstract type (quotient or subtype). For example: 

1278 

1279 
((A ===> B) ===> list_all2 A ===> list_all2 B) map map 

1280 
(cr_int ===> cr_int ===> cr_int) (%(x,y) (u,v). (x+u, y+v)) plus_int 

1281 

1282 
 transfer method: Replaces a subgoal on abstract types with an 

1283 
equivalent subgoal on the corresponding raw types. Constants are 

1284 
replaced with corresponding ones according to the transfer rules. 

1285 
Goals are generalized over all free variables by default; this is 

47851  1286 
necessary for variables whose types change, but can be overridden 
47855  1287 
for specific variables with e.g. "transfer fixing: x y z". The 
47809  1288 
variant transfer' method allows replacing a subgoal with one that 
1289 
is logically stronger (rather than equivalent). 

1290 

1291 
 relator_eq attribute: Collects identity laws for relators of 

1292 
various type constructors, e.g. "list_all2 (op =) = (op =)". The 

1293 
transfer method uses these lemmas to infer transfer rules for 

1294 
nonpolymorphic constants on the fly. 

1295 

1296 
 transfer_prover method: Assists with proving a transfer rule for a 

1297 
new constant, provided the constant is defined in terms of other 

1298 
constants that already have transfer rules. It should be applied 

1299 
after unfolding the constant definitions. 

1300 

1301 
 HOL/ex/Transfer_Int_Nat.thy: Example theory demonstrating transfer 

1302 
from type nat to type int. 

1303 

47851  1304 
* Lifting: New package intended to generalize the quotient_definition 
1305 
facility of the Quotient package; designed to work with Transfer. 

47809  1306 

1307 
 lift_definition command: Defines operations on an abstract type in 

1308 
terms of a corresponding operation on a representation 

1309 
type. Example syntax: 

1310 

1311 
lift_definition dlist_insert :: "'a => 'a dlist => 'a dlist" 

1312 
is List.insert 

1313 

1314 
Users must discharge a respectfulness proof obligation when each 

1315 
constant is defined. (For a type copy, i.e. a typedef with UNIV, 

1316 
the proof is discharged automatically.) The obligation is 

1317 
presented in a userfriendly, readable form; a respectfulness 

1318 
theorem in the standard format and a transfer rule are generated 

1319 
by the package. 

1320 

1321 
 Integration with code_abstype: For typedefs (e.g. subtypes 

1322 
corresponding to a datatype invariant, such as dlist), 

1323 
lift_definition generates a code certificate theorem and sets up 

1324 
code generation for each constant. 

1325 

1326 
 setup_lifting command: Sets up the Lifting package to work with a 

1327 
userdefined type. The user must provide either a quotient theorem 

1328 
or a type_definition theorem. The package configures transfer 

1329 
rules for equality and quantifiers on the type, and sets up the 

1330 
lift_definition command to work with the type. 

1331 

1332 
 Usage examples: See Quotient_Examples/Lift_DList.thy, 

47851  1333 
Quotient_Examples/Lift_RBT.thy, Quotient_Examples/Lift_FSet.thy, 
1334 
Word/Word.thy and Library/Float.thy. 

47809  1335 

1336 
* Quotient package: 

1337 

1338 
 The 'quotient_type' command now supports a 'morphisms' option with 

1339 
rep and abs functions, similar to typedef. 

1340 

1341 
 'quotient_type' sets up new types to work with the Lifting and 

1342 
Transfer packages, as with 'setup_lifting'. 

1343 

1344 
 The 'quotient_definition' command now requires the user to prove a 

1345 
respectfulness property at the point where the constant is 

1346 
defined, similar to lift_definition; INCOMPATIBILITY. 

1347 

1348 
 Renamed predicate 'Quotient' to 'Quotient3', and renamed theorems 

1349 
accordingly, INCOMPATIBILITY. 

1350 

1351 
* New diagnostic command 'find_unused_assms' to find potentially 

1352 
superfluous assumptions in theorems using Quickcheck. 

1353 

1354 
* Quickcheck: 

1355 

1356 
 Quickcheck returns variable assignments as counterexamples, which 

1357 
allows to reveal the underspecification of functions under test. 

1358 
For example, refuting "hd xs = x", it presents the variable 

1359 
assignment xs = [] and x = a1 as a counterexample, assuming that 

1360 
any property is false whenever "hd []" occurs in it. 

1361 

1362 
These counterexample are marked as potentially spurious, as 

1363 
Quickcheck also returns "xs = []" as a counterexample to the 

1364 
obvious theorem "hd xs = hd xs". 

1365 

1366 
After finding a potentially spurious counterexample, Quickcheck 

1367 
continues searching for genuine ones. 

1368 

1369 
By default, Quickcheck shows potentially spurious and genuine 

1370 
counterexamples. The option "genuine_only" sets quickcheck to only 

1371 
show genuine counterexamples. 

1372 

1373 
 The command 'quickcheck_generator' creates random and exhaustive 

1374 
value generators for a given type and operations. 

1375 

1376 
It generates values by using the operations as if they were 

1377 
constructors of that type. 

1378 

1379 
 Support for multisets. 

1380 

1381 
 Added "use_subtype" options. 

1382 

1383 
 Added "quickcheck_locale" configuration to specify how to process 

1384 
conjectures in a locale context. 

1385 

47855  1386 
* Nitpick: Fixed infinite loop caused by the 'peephole_optim' option 
1387 
and affecting 'rat' and 'real'. 

47809  1388 

1389 
* Sledgehammer: 

1390 
 Integrated more tightly with SPASS, as described in the ITP 2012 

1391 
paper "More SPASS with Isabelle". 

1392 
 Made it try "smt" as a fallback if "metis" fails or times out. 

1393 
 Added support for the following provers: AltErgo (via Why3 and 

1394 
TFF1), iProver, iProverEq. 

1395 
 Sped up the minimizer. 

1396 
 Added "lam_trans", "uncurry_aliases", and "minimize" options. 

1397 
 Renamed "slicing" ("no_slicing") option to "slice" ("dont_slice"). 

1398 
 Renamed "sound" option to "strict". 

1399 

47855  1400 
* Metis: Added possibility to specify lambda translations scheme as a 
1401 
parenthesized argument (e.g., "by (metis (lifting) ...)"). 

1402 

1403 
* SMT: Renamed "smt_fixed" option to "smt_read_only_certificates". 

1404 

1405 
* Command 'try0': Renamed from 'try_methods'. INCOMPATIBILITY. 

47809  1406 

47856  1407 
* New "case_product" attribute to generate a case rule doing multiple 
1408 
case distinctions at the same time. E.g. 

1409 

1410 
list.exhaust [case_product nat.exhaust] 

1411 

1412 
produces a rule which can be used to perform case distinction on both 

1413 
a list and a nat. 

1414 

47809  1415 
* New "eventually_elim" method as a generalized variant of the 
47855  1416 
eventually_elim* rules. Supports structured proofs. 
1417 

47702
5f9ce06f281e
typedef with implicit set definition is considered legacy;
wenzelm
parents:
47694
diff
changeset

1418 
* Typedef with implicit set definition is considered legacy. Use 
5f9ce06f281e
typedef with implicit set definition is considered legacy;
wenzelm
parents:
47694
diff
changeset

1419 
"typedef (open)" form instead, which will eventually become the 
5f9ce06f281e
typedef with implicit set definition is considered legacy;
wenzelm
parents:
47694
diff
changeset

1420 
default. 
5f9ce06f281e
typedef with implicit set definition is considered legacy;
wenzelm
parents:
47694
diff
changeset

1421 

47856 