author  haftmann 
Tue, 19 Nov 2013 18:14:56 +0100  
changeset 54502  e7c9a14632d0 
parent 54489  03ff4d1e6784 
child 54533  05738b7d8191 
permissions  rwrr 
5363  1 
Isabelle NEWS  history userrelevant changes 
2 
============================================== 

2553  3 

54055  4 
New in this Isabelle version 
5 
 

6 

54227
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moving generic lemmas out of theory parity, disregarding some unused auxiliary lemmas;
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7 
*** HOL *** 
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moving generic lemmas out of theory parity, disregarding some unused auxiliary lemmas;
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8 

54295  9 
* Qualified constant names Wellfounded.acc, Wellfounded.accp. 
10 
INCOMPATIBILITY. 

11 

54228  12 
* Fact generalization and consolidation: 
13 
neq_one_mod_two, mod_2_not_eq_zero_eq_one_int ~> not_mod_2_eq_0_eq_1 

14 
INCOMPATIBILITY. 

15 

16 
* Purely algebraic definition of even. Fact generalization and consolidation: 

17 
nat_even_iff_2_dvd, int_even_iff_2_dvd ~> even_iff_2_dvd 

18 
even_zero_(natint) ~> even_zero 

19 
INCOMPATIBILITY. 

54055  20 

54489
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eliminiated neg_numeral in favour of  (numeral _)
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* Abolished neg_numeral. 
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eliminiated neg_numeral in favour of  (numeral _)
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22 
* Canonical representation for minus one is " 1". 
03ff4d1e6784
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23 
* Canonical representation for other negative numbers is " (numeral _)". 
54502  24 
* When devising rule sets for number calculation, consider the 
54489
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25 
following cases: 0, 1, numeral _,  1,  numeral _. 
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26 
* Syntax for negative numerals is mere input syntax. 
03ff4d1e6784
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27 
INCOMPATBILITY. 
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eliminiated neg_numeral in favour of  (numeral _)
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28 

54230
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* Elimination of fact duplicates: 
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30 
equals_zero_I ~> minus_unique 
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31 
diff_eq_0_iff_eq ~> right_minus_eq 
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32 
INCOMPATIBILITY. 
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33 

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34 
* Fact name consolidation: 
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35 
diff_def, diff_minus, ab_diff_minus ~> diff_conv_add_uminus 
54250  36 
minus_le_self_iff ~> neg_less_eq_nonneg 
37 
le_minus_self_iff ~> less_eq_neg_nonpos 

38 
neg_less_nonneg ~> neg_less_pos 

39 
less_minus_self_iff ~> less_neg_neg [simp] 

54230
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40 
INCOMPATIBILITY. 
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41 

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42 
* More simplification rules on unary and binary minus: 
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43 
add_diff_cancel, add_diff_cancel_left, add_le_same_cancel1, 
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44 
add_le_same_cancel2, add_less_same_cancel1, add_less_same_cancel2, 
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45 
add_minus_cancel, diff_add_cancel, le_add_same_cancel1, 
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46 
le_add_same_cancel2, less_add_same_cancel1, less_add_same_cancel2, 
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47 
minus_add_cancel, uminus_add_conv_diff. These correspondingly 
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48 
have been taken away from fact collections algebra_simps and 
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49 
field_simps. INCOMPATIBILITY. 
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50 

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51 
To restore proofs, the following patterns are helpful: 
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52 

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53 
a) Arbitrary failing proof not involving "diff_def": 
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54 
Consider simplification with algebra_simps or field_simps. 
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55 

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56 
b) Lifting rules from addition to subtraction: 
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57 
Try with "using <rule for addition> of [… " _" …]" by simp". 
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58 

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59 
c) Simplification with "diff_def": just drop "diff_def". 
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60 
Consider simplification with algebra_simps or field_simps; 
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61 
or the brute way with 
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"simp add: diff_conv_add_uminus del: add_uminus_conv_diff". 
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63 

54264  64 
* SUP and INF generalized to conditionally_complete_lattice 
65 

66 
* Theory Lubs moved HOL image to HOLLibrary. It is replaced by 

67 
Conditionally_Complete_Lattices. INCOMPATIBILITY. 

68 

69 
* Introduce bdd_above and bdd_below in Conditionally_Complete_Lattices, use them 

70 
instead of explicitly stating boundedness of sets. 

71 

72 

54449
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*** ML *** 
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74 

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75 
* Toplevel function "use" refers to raw ML bootstrap environment, 
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76 
without Isar context nor antiquotations. Potential INCOMPATIBILITY. 
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77 
Note that 'ML_file' is the canonical command to load ML files into the 
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formal context. 
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79 

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toplevel function "use" refers to raw ML bootstrap environment;
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80 

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81 

53971  82 
New in Isabelle20131 (November 2013) 
83 
 

50994  84 

51293
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discontinued obsolete 'uses' within theory header;
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85 
*** General *** 
05b1bbae748d
discontinued obsolete 'uses' within theory header;
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86 

53971  87 
* Discontinued obsolete 'uses' within theory header. Note that 
88 
commands like 'ML_file' work without separate declaration of file 

89 
dependencies. Minor INCOMPATIBILITY. 

90 

91 
* Discontinued redundant 'use' command, which was superseded by 

92 
'ML_file' in Isabelle2013. Minor INCOMPATIBILITY. 

93 

53016
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94 
* 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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98 
names. Obsolete \<twosuperior> has been expanded to \<^sup>2 in 
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99 
Isabelle/HOL. INCOMPATIBILITY, use "isabelle update_sub_sup" to 
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100 
standardize symbols as a starting point for further manual cleanup. 
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101 
The ML reference variable "legacy_isub_isup" may be set as temporary 
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workaround, to make the prover accept a subset of the old identifier 
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syntax. 
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104 

53021
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105 
* Document antiquotations: term style "isub" has been renamed to 
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106 
"sub". Minor INCOMPATIBILITY. 
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107 

52487
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108 
* Uniform management of "quick_and_dirty" as system option (see also 
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109 
"isabelle options"), configuration option within the context (see also 
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110 
Config.get in Isabelle/ML), and attribute in Isabelle/Isar. Minor 
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INCOMPATIBILITY, need to use more official Isabelle means to access 
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112 
quick_and_dirty, instead of historical poking into mutable reference. 
52059  113 

52060  114 
* Renamed command 'print_configs' to 'print_options'. Minor 
115 
INCOMPATIBILITY. 

116 

52430  117 
* Proper diagnostic command 'print_state'. Old 'pr' (with its 
118 
implicit change of some global references) is retained for now as 

119 
control command, e.g. for ProofGeneral 3.7.x. 

120 

52549  121 
* Discontinued 'print_drafts' command with its oldfashioned PS output 
122 
and Unix commandline print spooling. Minor INCOMPATIBILITY: use 

123 
'display_drafts' instead and print via the regular document viewer. 

124 

53971  125 
* Updated and extended "isarref" and "implementation" manual, 
126 
eliminated old "ref" manual. 

127 

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128 

51533  129 
*** Prover IDE  Isabelle/Scala/jEdit *** 
130 

53971  131 
* New manual "jedit" for Isabelle/jEdit, see isabelle doc or 
53852  132 
Documentation panel. 
133 

53971  134 
* Dockable window "Documentation" provides access to Isabelle 
135 
documentation. 

52646  136 

52949  137 
* Dockable window "Find" provides query operations for formal entities 
138 
(GUI frontend to 'find_theorems' command). 

139 

53050  140 
* Dockable window "Sledgehammer" manages asynchronous / parallel 
141 
sledgehammer runs over existing document sources, independently of 

142 
normal editing and checking process. 

143 

51533  144 
* Dockable window "Timing" provides an overview of relevant command 
54332  145 
timing information, depending on option jedit_timing_threshold. The 
146 
same timing information is shown in the extended tooltip of the 

147 
command keyword, when hovering the mouse over it while the CONTROL or 

148 
COMMAND modifier is pressed. 

51533  149 

53971  150 
* Improved dockable window "Theories": Continuous checking of proof 
151 
document (visible and required parts) may be controlled explicitly, 

152 
using check box or shortcut "C+e ENTER". Individual theory nodes may 

153 
be marked explicitly as required and checked in full, using check box 

154 
or shortcut "C+e SPACE". 

155 

54305  156 
* Improved completion mechanism, which is now managed by the 
157 
Isabelle/jEdit plugin instead of SideKick. Refined table of Isabelle 

158 
symbol abbreviations (see $ISABELLE_HOME/etc/symbols). 

159 

54319  160 
* Standard jEdit keyboard shortcut C+b completeword is remapped to 
161 
isabelle.complete for explicit completion in Isabelle sources. 

162 
INCOMPATIBILITY wrt. jEdit defaults, may have to invent new shortcuts 

163 
to resolve conflict. 

164 

54305  165 
* Improved support of various "minor modes" for Isabelle NEWS, 
166 
options, session ROOT etc., with completion and SideKick tree view. 

167 

53971  168 
* Strictly monotonic document update, without premature cancellation of 
169 
running transactions that are still needed: avoid reset/restart of 

170 
such command executions while editing. 

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171 

53971  172 
* Support for asynchronous print functions, as overlay to existing 
173 
document content. 

174 

175 
* Support for automatic tools in HOL, which try to prove or disprove 

176 
toplevel theorem statements. 

177 

178 
* Action isabelle.resetfontsize resets main text area font size 

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179 
according to Isabelle/Scala plugin option "jedit_font_reset_size" (see 
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180 
also "Plugin Options / Isabelle / General"). It can be bound to some 
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181 
keyboard shortcut by the user (e.g. C+0 and/or C+NUMPAD0). 
53971  182 

183 
* File specifications in jEdit (e.g. file browser) may refer to 

54351  184 
$ISABELLE_HOME and $ISABELLE_HOME_USER on all platforms. Discontinued 
185 
obsolete $ISABELLE_HOME_WINDOWS variable. 

53971  186 

187 
* Improved support for Linux lookandfeel "GTK+", see also "Utilities 

188 
/ Global Options / Appearance". 

189 

190 
* Improved support of native Mac OS X functionality via "MacOSX" 

191 
plugin, which is now enabled by default. 

192 

51533  193 

51313  194 
*** Pure *** 
195 

54049  196 
* Commands 'interpretation' and 'sublocale' are now targetsensitive. 
197 
In particular, 'interpretation' allows for nonpersistent 

198 
interpretation within "context ... begin ... end" blocks offering a 

199 
lightweight alternative to 'sublocale'. See "isarref" manual for 

200 
details. 

51747  201 

51565  202 
* Improved locales diagnostic command 'print_dependencies'. 
203 

51313  204 
* Discontinued obsolete 'axioms' command, which has been marked as 
205 
legacy since Isabelle20092. INCOMPATIBILITY, use 'axiomatization' 

206 
instead, while observing its uniform scope for polymorphism. 

207 

51316
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* Discontinued empty name bindings in 'axiomatization'. 
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INCOMPATIBILITY. 
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210 

53971  211 
* System option "proofs" has been discontinued. Instead the global 
212 
state of Proofterm.proofs is persistently compiled into logic images 

213 
as required, notably HOLProofs. Users no longer need to change 

214 
Proofterm.proofs dynamically. Minor INCOMPATIBILITY. 

215 

216 
* Syntax translation functions (print_translation etc.) always depend 

217 
on Proof.context. Discontinued former "(advanced)" option  this is 

218 
now the default. Minor INCOMPATIBILITY. 

219 

220 
* Former global reference trace_unify_fail is now available as 

221 
configuration option "unify_trace_failure" (global context only). 

222 

52463  223 
* SELECT_GOAL now retains the syntactic context of the overall goal 
224 
state (schematic variables etc.). Potential INCOMPATIBILITY in rare 

225 
situations. 

226 

51313  227 

51002
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228 
*** HOL *** 
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229 

54032  230 
* Stronger precedence of syntax for big intersection and union on 
231 
sets, in accordance with corresponding lattice operations. 

232 
INCOMPATIBILITY. 

233 

234 
* Notation "{p:A. P}" now allows tuple patterns as well. 

235 

236 
* Nested case expressions are now translated in a separate check phase 

237 
rather than during parsing. The data for case combinators is separated 

238 
from the datatype package. The declaration attribute 

239 
"case_translation" can be used to register new case combinators: 

240 

241 
declare [[case_translation case_combinator constructor1 ... constructorN]] 

52637
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242 

52435
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243 
* Code generator: 
53160  244 
 'code_printing' unifies 'code_const' / 'code_type' / 'code_class' / 
245 
'code_instance'. 

246 
 'code_identifier' declares name hints for arbitrary identifiers in 

247 
generated code, subsuming 'code_modulename'. 

53983  248 

249 
See the isarref manual for syntax diagrams, and the HOL theories for 

250 
examples. 

52435
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251 

54032  252 
* Attibute 'code': 'code' now declares concrete and abstract code 
253 
equations uniformly. Use explicit 'code equation' and 'code abstract' 

254 
to distinguish both when desired. 

255 

256 
* Discontinued theories Code_Integer and Efficient_Nat by a more 

257 
finegrain stack of theories Code_Target_Int, Code_Binary_Nat, 

258 
Code_Target_Nat and Code_Target_Numeral. See the tutorial on code 

259 
generation for details. INCOMPATIBILITY. 

260 

261 
* Numeric types are mapped by default to target language numerals: 

262 
natural (replaces former code_numeral) and integer (replaces former 

263 
code_int). Conversions are available as integer_of_natural / 

264 
natural_of_integer / integer_of_nat / nat_of_integer (in HOL) and 

265 
Code_Numeral.integer_of_natural / Code_Numeral.natural_of_integer (in 

266 
ML). INCOMPATIBILITY. 

267 

268 
* Function package: For mutually recursive functions f and g, separate 

269 
cases rules f.cases and g.cases are generated instead of unusable 

270 
f_g.cases which exposed internal sum types. Potential INCOMPATIBILITY, 

271 
in the case that the unusable rule was used nevertheless. 

272 

273 
* Function package: For each function f, new rules f.elims are 

274 
generated, which eliminate equalities of the form "f x = t". 

275 

276 
* New command 'fun_cases' derives adhoc elimination rules for 

277 
function equations as simplified instances of f.elims, analogous to 

278 
inductive_cases. See ~~/src/HOL/ex/Fundefs.thy for some examples. 

53307  279 

54021  280 
* Lifting: 
281 
 parametrized correspondence relations are now supported: 

54378  282 
+ parametricity theorems for the raw term can be specified in 
54021  283 
the command lift_definition, which allow us to generate stronger 
284 
transfer rules 

285 
+ setup_lifting generates stronger transfer rules if parametric 

286 
correspondence relation can be generated 

287 
+ various new properties of the relator must be specified to support 

288 
parametricity 

289 
+ parametricity theorem for the Quotient relation can be specified 

290 
 setup_lifting generates domain rules for the Transfer package 

291 
 stronger reflexivity prover of respectfulness theorems for type 

292 
copies 

293 
 ===> and > are now local. The symbols can be introduced 

294 
by interpreting the locale lifting_syntax (typically in an 

295 
anonymous context) 

54378  296 
 Lifting/Transfer relevant parts of Library/Quotient_* are now in 
54021  297 
Main. Potential INCOMPATIBILITY 
298 
 new commands for restoring and deleting Lifting/Transfer context: 

299 
lifting_forget, lifting_update 

54378  300 
 the command print_quotmaps was renamed to print_quot_maps. 
54021  301 
INCOMPATIBILITY 
302 

303 
* Transfer: 

54378  304 
 better support for domains in Transfer: replace Domainp T 
54021  305 
by the actual invariant in a transferred goal 
306 
 transfer rules can have as assumptions other transfer rules 

307 
 Experimental support for transferring from the raw level to the 

308 
abstract level: Transfer.transferred attribute 

309 
 Attribute version of the transfer method: untransferred attribute 

310 

52286  311 
* Reification and reflection: 
53160  312 
 Reification is now directly available in HOLMain in structure 
313 
"Reification". 

314 
 Reflection now handles multiple lists with variables also. 

315 
 The whole reflection stack has been decomposed into conversions. 

52286  316 
INCOMPATIBILITY. 
317 

51489  318 
* Revised devices for recursive definitions over finite sets: 
319 
 Only one fundamental fold combinator on finite set remains: 

320 
Finite_Set.fold :: ('a => 'b => 'b) => 'b => 'a set => 'b 

321 
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

322 
 Locales ("mini packages") for fundamental definitions with 
51489  323 
Finite_Set.fold: folding, folding_idem. 
324 
 Locales comm_monoid_set, semilattice_order_set and 

325 
semilattice_neutr_order_set for big operators on sets. 

326 
See theory Big_Operators for canonical examples. 

327 
Note that foundational constants comm_monoid_set.F and 

328 
semilattice_set.F correspond to former combinators fold_image 

329 
and fold1 respectively. These are now gone. You may use 

51490  330 
those foundational constants as substitutes, but it is 
53983  331 
preferable to interpret the above locales accordingly. 
51489  332 
 Dropped class ab_semigroup_idem_mult (special case of lattice, 
333 
no longer needed in connection with Finite_Set.fold etc.) 

334 
 Fact renames: 

335 
card.union_inter ~> card_Un_Int [symmetric] 

336 
card.union_disjoint ~> card_Un_disjoint 

337 
INCOMPATIBILITY. 

338 

51487  339 
* Locale hierarchy for abstract orderings and (semi)lattices. 
340 

53526  341 
* Complete_Partial_Order.admissible is defined outside the type class 
342 
ccpo, but with mandatory prefix ccpo. Admissibility theorems lose the 

343 
class predicate assumption or sort constraint when possible. 

53362  344 
INCOMPATIBILITY. 
345 

53160  346 
* Introduce type class "conditionally_complete_lattice": Like a 
347 
complete lattice but does not assume the existence of the top and 

348 
bottom elements. Allows to generalize some lemmas about reals and 

349 
extended reals. Removed SupInf and replaced it by the instantiation 

350 
of conditionally_complete_lattice for real. Renamed lemmas about 

351 
conditionallycomplete lattice from Sup_... to cSup_... and from 

352 
Inf_... to cInf_... to avoid hidding of similar complete lattice 

353 
lemmas. 

354 

355 
* Introduce type class linear_continuum as combination of 

356 
conditionallycomplete lattices and inner dense linorders which have 

357 
more than one element. INCOMPATIBILITY. 

358 

53983  359 
* Introduced type classes order_top and order_bot. The old classes top 
360 
and bot only contain the syntax without assumptions. INCOMPATIBILITY: 

361 
Rename bot > order_bot, top > order_top 

53683  362 

53160  363 
* Introduce type classes "no_top" and "no_bot" for orderings without 
364 
top and bottom elements. 

51732  365 

366 
* Split dense_linorder into inner_dense_order and no_top, no_bot. 

367 

368 
* Complex_Main: Unify and move various concepts from 

53160  369 
HOLMultivariate_Analysis to HOLComplex_Main. 
51732  370 

53983  371 
 Introduce type class (lin)order_topology and 
372 
linear_continuum_topology. Allows to generalize theorems about 

373 
limits and order. Instances are reals and extended reals. 

51732  374 

375 
 continuous and continuos_on from Multivariate_Analysis: 

53983  376 
"continuous" is the continuity of a function at a filter. "isCont" 
377 
is now an abbrevitation: "isCont x f == continuous (at _) f". 

378 

379 
Generalized continuity lemmas from isCont to continuous on an 

380 
arbitrary filter. 

381 

382 
 compact from Multivariate_Analysis. Use Bolzano's lemma to prove 

383 
compactness of closed intervals on reals. Continuous functions 

384 
attain infimum and supremum on compact sets. The inverse of a 

385 
continuous function is continuous, when the function is continuous 

386 
on a compact set. 

51732  387 

388 
 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

389 
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

390 
linear_continuum_topology). 
51732  391 

392 
 first_countable_topology from Multivariate_Analysis. Is used to 

53983  393 
show equivalence of properties on the neighbourhood filter of x and 
394 
on all sequences converging to x. 

395 

396 
 FDERIV: Definition of has_derivative moved to Deriv.thy. Moved 

397 
theorems from Library/FDERIV.thy to Deriv.thy and base the 

398 
definition of DERIV on FDERIV. Add variants of DERIV and FDERIV 

399 
which are restricted to sets, i.e. to represent derivatives from 

400 
left or right. 

51732  401 

402 
 Removed the withinfilter. It is replaced by the principal filter: 

403 

404 
F within X = inf F (principal X) 

405 

406 
 Introduce "at x within U" as a single constant, "at x" is now an 

407 
abbreviation for "at x within UNIV" 

408 

53983  409 
 Introduce named theorem collections tendsto_intros, 
410 
continuous_intros, continuous_on_intros and FDERIV_intros. Theorems 

411 
in tendsto_intros (or FDERIV_intros) are also available as 

412 
tendsto_eq_intros (or FDERIV_eq_intros) where the righthand side 

413 
is replaced by a congruence rule. This allows to apply them as 

414 
intro rules and then proving equivalence by the simplifier. 

51732  415 

416 
 Restructured theories in HOLComplex_Main: 

417 

418 
+ Moved RealDef and RComplete into Real 

419 

420 
+ Introduced Topological_Spaces and moved theorems about 

421 
topological spaces, filters, limits and continuity to it 

422 

423 
+ Renamed RealVector to Real_Vector_Spaces 

424 

53983  425 
+ Split Lim, SEQ, Series into Topological_Spaces, 
426 
Real_Vector_Spaces, and Limits 

51732  427 

428 
+ Moved Ln and Log to Transcendental 

429 

430 
+ Moved theorems about continuity from Deriv to Topological_Spaces 

431 

432 
 Remove various auxiliary lemmas. 

433 

434 
INCOMPATIBILITY. 

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

435 

53738  436 
* Nitpick: 
53803  437 
 Added option "spy" 
53738  438 
 Reduce incidence of "too high arity" errors 
439 

51137  440 
* Sledgehammer: 
441 
 Renamed option: 

442 
isar_shrink ~> isar_compress 

53738  443 
INCOMPATIBILITY. 
53801  444 
 Added options "isar_try0", "spy" 
53728  445 
 Better support for "isar_proofs" 
53766  446 
 MaSh has been finedtuned and now runs as a local server 
51137  447 

54032  448 
* Improved support for ad hoc overloading of constants (see also 
449 
isarref manual and ~~/src/HOL/ex/Adhoc_Overloading_Examples.thy). 

450 

451 
* Library/Polynomial.thy: 

452 
 Use lifting for primitive definitions. 

453 
 Explicit conversions from and to lists of coefficients, used for 

454 
generated code. 

455 
 Replaced recursion operator poly_rec by fold_coeffs. 

456 
 Prefer preexisting gcd operation for gcd. 

457 
 Fact renames: 

458 
poly_eq_iff ~> poly_eq_poly_eq_iff 

459 
poly_ext ~> poly_eqI 

460 
expand_poly_eq ~> poly_eq_iff 

461 
IMCOMPATIBILITY. 

462 

463 
* New Library/Simps_Case_Conv.thy: Provides commands simps_of_case and 

464 
case_of_simps to convert function definitions between a list of 

465 
equations with patterns on the lhs and a single equation with case 

466 
expressions on the rhs. See also Ex/Simps_Case_Conv_Examples.thy. 

467 

468 
* New Library/FSet.thy: type of finite sets defined as a subtype of 

469 
sets defined by Lifting/Transfer. 

470 

471 
* Discontinued theory src/HOL/Library/Eval_Witness. INCOMPATIBILITY. 

472 

473 
* Consolidation of library theories on product orders: 

474 

475 
Product_Lattice ~> Product_Order  pointwise order on products 

476 
Product_ord ~> Product_Lexorder  lexicographic order on products 

477 

478 
INCOMPATIBILITY. 

479 

53160  480 
* ImperativeHOL: The MREC combinator is considered legacy and no 
481 
longer included by default. INCOMPATIBILITY, use partial_function 

482 
instead, or import theory Legacy_Mrec as a fallback. 

483 

53983  484 
* HOLAlgebra: Discontinued theories ~~/src/HOL/Algebra/abstract and 
485 
~~/src/HOL/Algebra/poly. Existing theories should be based on 

486 
~~/src/HOL/Library/Polynomial instead. The latter provides 

487 
integration with HOL's type classes for rings. INCOMPATIBILITY. 

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

488 

54033  489 
* HOLBNF: 
54032  490 
 Various improvements to BNFbased (co)datatype package, including 
491 
new commands "primrec_new", "primcorec", and 

492 
"datatype_new_compat", as well as documentation. See 

493 
"datatypes.pdf" for details. 

494 
 New "coinduction" method to avoid some boilerplate (compared to 

495 
coinduct). 

496 
 Renamed keywords: 

497 
data ~> datatype_new 

498 
codata ~> codatatype 

499 
bnf_def ~> bnf 

500 
 Renamed many generated theorems, including 

501 
discs ~> disc 

502 
map_comp' ~> map_comp 

503 
map_id' ~> map_id 

504 
sels ~> sel 

505 
set_map' ~> set_map 

506 
sets ~> set 

507 
IMCOMPATIBILITY. 

508 

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

509 

51551  510 
*** ML *** 
511 

53971  512 
* Spec_Check is a Quickcheck tool for Isabelle/ML. The ML function 
513 
"check_property" allows to check specifications of the form "ALL x y 

514 
z. prop x y z". See also ~~/src/Tools/Spec_Check/ with its 

515 
Examples.thy in particular. 

516 

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

517 
* 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

518 
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

519 
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

520 
ML_Compiler.exn_trace. 
84522727f9d3
improved printing of exception trace in Poly/ML 5.5.1;
wenzelm
parents:
53683
diff
changeset

521 

53971  522 
* ML type "theory" is now immutable, without any special treatment of 
523 
drafts or linear updates (which could lead to "stale theory" errors in 

524 
the past). Discontinued obsolete operations like Theory.copy, 

525 
Theory.checkpoint, and the auxiliary type theory_ref. Minor 

526 
INCOMPATIBILITY. 

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

527 

51551  528 
* More uniform naming of goal functions for skipped proofs: 
529 

530 
Skip_Proof.prove ~> Goal.prove_sorry 

531 
Skip_Proof.prove_global ~> Goal.prove_sorry_global 

532 

53971  533 
Minor INCOMPATIBILITY. 
51703
f2e92fc0c8aa
modifiers for classical wrappers operate on Proof.context instead of claset;
wenzelm
parents:
51689
diff
changeset

534 

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

535 
* 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

536 
historic type simpset. Oldstyle declarations like addsimps, 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

537 
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

538 
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

539 
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

540 
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

541 
(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

542 

53971  543 
* Modifiers for classical wrappers (e.g. addWrapper, delWrapper) 
544 
operate on Proof.context instead of claset, for uniformity with addIs, 

545 
addEs, addDs etc. Note that claset_of and put_claset allow to manage 

546 
clasets separately from the context. 

547 

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

548 
* Discontinued obsolete ML antiquotations @{claset} and @{simpset}. 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

549 
INCOMPATIBILITY, use @{context} instead. 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

550 

53971  551 
* Antiquotation @{theory_context A} is similar to @{theory A}, but 
552 
presents the result as initial Proof.context. 

553 

51551  554 

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

555 
*** System *** 
c3d02b3518c2
discontinued "isabelle usedir" option P (remote path);
wenzelm
parents:
51382
diff
changeset

556 

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

557 
* Discontinued obsolete isabelle usedir, mkdir, make  superseded by 
892061142ba6
discontinued obsolete isabelle usedir, mkdir, make;
wenzelm
parents:
51775
diff
changeset

558 
"isabelle build" in Isabelle2013. INCOMPATIBILITY. 
51398
c3d02b3518c2
discontinued "isabelle usedir" option P (remote path);
wenzelm
parents:
51382
diff
changeset

559 

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

560 
* Discontinued obsolete isabelleprocess options f and u (former 
eaf17514aabd
discontinued obsolete isabelleprocess options f and u;
wenzelm
parents:
52053
diff
changeset

561 
administrative aliases of option e). Minor INCOMPATIBILITY. 
eaf17514aabd
discontinued obsolete isabelleprocess options f and u;
wenzelm
parents:
52053
diff
changeset

562 

52550  563 
* Discontinued obsolete isabelle print tool, and PRINT_COMMAND 
564 
settings variable. 

565 

52746  566 
* Discontinued ISABELLE_DOC_FORMAT settings variable and historic 
567 
document formats: dvi.gz, ps, ps.gz  the default document format is 

568 
always pdf. 

52743  569 

52053  570 
* Isabelle settings variable ISABELLE_BUILD_JAVA_OPTIONS allows to 
571 
specify global resources of the JVM process run by isabelle build. 

572 

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

573 
* 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

574 
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

575 

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

576 
* 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

577 
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

578 
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

579 

53971  580 
* Sessions may be organized via 'chapter' specifications in the ROOT 
581 
file, which determines a twolevel hierarchy of browser info. The old 

582 
treelike organization via implicit subsession relation (with its 

583 
tendency towards erratic fluctuation of URLs) has been discontinued. 

584 
The default chapter is called "Unsorted". Potential INCOMPATIBILITY 

585 
for HTML presentation of theories. 

586 

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

587 

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

588 

50993  589 
New in Isabelle2013 (February 2013) 
590 
 

47887  591 

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

592 
*** General *** 
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

593 

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

594 
* 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

595 
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

596 
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

597 
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

598 
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

599 
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

600 
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

601 

49699  602 
* Configuration option show_markup controls direct inlining of markup 
603 
into the printed representation of formal entities  notably type 

604 
and sort constraints. This enables Prover IDE users to retrieve that 

605 
information via tooltips in the output window, for example. 

606 

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

607 
* 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

608 
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

609 

49243  610 
* Old command 'use' command and corresponding keyword 'uses' in the 
611 
theory header are legacy features and will be discontinued soon. 

612 
Tools that load their additional source files may imitate the 

613 
'ML_file' implementation, such that the system can take care of 

614 
dependencies properly. 

615 

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

616 
* Discontinued obsolete method fastsimp / tactic fast_simp_tac, which 
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

617 
is called fastforce / fast_force_tac already since Isabelle20111. 
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

618 

50110  619 
* Updated and extended "isarref" and "implementation" manual, reduced 
620 
remaining material in old "ref" manual. 

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

621 

51050  622 
* Improved support for auxiliary contexts that indicate block structure 
623 
for specifications. Nesting of "context fixes ... context assumes ..." 

49841  624 
and "class ... context ...". 
625 

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

626 
* Attribute "consumes" allows a negative value as well, which is 
50778  627 
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

628 
the target context. This form of declaration is stable when exported 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

629 
from a nested 'context' with additional assumptions. It is the 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

630 
preferred form for definitional packages, notably cases/rules produced 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

631 
in HOL/inductive and HOL/function. 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

632 

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

633 
* More informative error messages for Isar proof commands involving 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

634 
lazy enumerations (method applications etc.). 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

635 

50213  636 
* Refined 'help' command to retrieve outer syntax commands according 
637 
to name patterns (with clickable results). 

638 

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

639 

49968  640 
*** Prover IDE  Isabelle/Scala/jEdit *** 
641 

642 
* Parallel terminal proofs ('by') are enabled by default, likewise 

643 
proofs that are built into packages like 'datatype', 'function'. This 

644 
allows to "run ahead" checking the theory specifications on the 

645 
surface, while the prover is still crunching on internal 

646 
justifications. Unfinished / cancelled proofs are restarted as 

647 
required to complete full proof checking eventually. 

648 

649 
* Improved output panel with tooltips, hyperlinks etc. based on the 

650 
same Rich_Text_Area as regular Isabelle/jEdit buffers. Activation of 

651 
tooltips leads to some window that supports the same recursively, 

652 
which can lead to stacks of tooltips as the semantic document content 

653 
is explored. ESCAPE closes the whole stack, individual windows may be 

654 
closed separately, or detached to become independent jEdit dockables. 

655 

50717  656 
* Improved support for commands that produce graph output: the text 
657 
message contains a clickable area to open a new instance of the graph 

658 
browser on demand. 

659 

49968  660 
* More robust incremental parsing of outer syntax (partial comments, 
661 
malformed symbols). Changing the balance of open/close quotes and 

662 
comment delimiters works more conveniently with unfinished situations 

663 
that frequently occur in user interaction. 

664 

665 
* More efficient painting and improved reactivity when editing large 

666 
files. More scalable management of formal document content. 

667 

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

668 
* 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

669 
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

670 
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

671 
potentially infinite message streams. 
49968  672 

673 
* More plugin options and preferences, based on Isabelle/Scala. The 

674 
jEdit plugin option panel provides access to some Isabelle/Scala 

675 
options, including tuning parameters for editor reactivity and color 

676 
schemes. 

677 

50184  678 
* Dockable window "Symbols" provides some editing support for Isabelle 
679 
symbols. 

680 

51082  681 
* Dockable window "Monitor" shows ML runtime statistics. Note that 
682 
continuous display of the chart slows down the system. 

50701  683 

50183  684 
* Improved editing support for control styles: subscript, superscript, 
685 
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

686 
selections. Cf. keyboard shortcuts C+e DOWN/UP/RIGHT/LEFT. 
0c7b351a6871
added convenience actions isabelle.increasefontsize and isabelle.decreasefontsize;
wenzelm
parents:
50184
diff
changeset

687 

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

688 
* Actions isabelle.increasefontsize and isabelle.decreasefontsize 
0c7b351a6871
added convenience actions isabelle.increasefontsize and isabelle.decreasefontsize;
wenzelm
parents:
50184
diff
changeset

689 
adjust the main text area font size, and its derivatives for output, 
50836  690 
tooltips etc. Cf. keyboard shortcuts CPLUS and CMINUS, which often 
691 
need to be adapted to local keyboard layouts. 

50183  692 

50730  693 
* More reactive completion popup by default: use \t (TAB) instead of 
694 
\n (NEWLINE) to minimize intrusion into regular flow of editing. See 

695 
also "Plugin Options / SideKick / General / Code Completion Options". 

696 

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

697 
* 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

698 
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

699 
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

700 
Isabelle distribution. 
c28753665b8e
documentation for isabelle build_dialog and its implicit use in isabelle jedit;
wenzelm
parents:
50232
diff
changeset

701 

49968  702 
* Uniform Java 7 platform on Linux, Mac OS X, Windows: recent updates 
703 
from Oracle provide better multiplatform experience. This version is 

704 
now bundled exclusively with Isabelle. 

705 

706 

48205  707 
*** Pure *** 
708 

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

709 
* 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

710 
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

711 

50646  712 
* Command 'export_code': relative file names are interpreted 
713 
relatively to master directory of current theory rather than the 

714 
rather arbitrary current working directory. INCOMPATIBILITY. 

48371  715 

48205  716 
* Discontinued obsolete attribute "COMP". Potential INCOMPATIBILITY, 
717 
use regular rule composition via "OF" / "THEN", or explicit proof 

718 
structure instead. Note that Isabelle/ML provides a variety of 

719 
operators like COMP, INCR_COMP, COMP_INCR, which need to be applied 

720 
with some care where this is really required. 

721 

48792  722 
* Command 'typ' supports an additional variant with explicit sort 
723 
constraint, to infer and check the most general type conforming to a 

51063  724 
given sort. Example (in HOL): 
48792  725 

726 
typ "_ * _ * bool * unit" :: finite 

727 

50716  728 
* Command 'locale_deps' visualizes all locales and their relations as 
729 
a Hasse diagram. 

730 

48205  731 

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

732 
*** HOL *** 
44de84112a67
added optimisation for equational premises in Quickcheck; added some Quickcheck examples; NEWS
bulwahn
parents:
47979
diff
changeset

733 

50646  734 
* Sledgehammer: 
735 

736 
 Added MaSh relevance filter based on machinelearning; see the 

737 
Sledgehammer manual for details. 

738 
 Polished Isar proofs generated with "isar_proofs" option. 

739 
 Rationalized type encodings ("type_enc" option). 

50720  740 
 Renamed "kill_provers" subcommand to "kill_all". 
50646  741 
 Renamed options: 
742 
isar_proof ~> isar_proofs 

743 
isar_shrink_factor ~> isar_shrink 

744 
max_relevant ~> max_facts 

745 
relevance_thresholds ~> fact_thresholds 

746 

747 
* Quickcheck: added an optimisation for equality premises. It is 

748 
switched on by default, and can be switched off by setting the 

749 
configuration quickcheck_optimise_equality to false. 

750 

50878  751 
* Quotient: only one quotient can be defined by quotient_type 
752 
INCOMPATIBILITY. 

753 

754 
* Lifting: 

755 
 generation of an abstraction function equation in lift_definition 

756 
 quot_del attribute 

757 
 renamed no_abs_code > no_code (INCOMPATIBILITY.) 

758 

50646  759 
* Simproc "finite_Collect" rewrites set comprehensions into pointfree 
760 
expressions. 

761 

762 
* Preprocessing of the code generator rewrites set comprehensions into 

763 
pointfree expressions. 

764 

765 
* The SMT solver Z3 has now by default a restricted set of directly 

766 
supported features. For the full set of features (div/mod, nonlinear 

767 
arithmetic, datatypes/records) with potential proof reconstruction 

768 
failures, enable the configuration option "z3_with_extensions". Minor 

769 
INCOMPATIBILITY. 

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

770 

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

771 
* Simplified 'typedef' specifications: historical options for implicit 
c13b39542972
simplified 'typedef' specifications: discontinued implicit set definition and alternative name;
wenzelm
parents:
49822
diff
changeset

772 
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

773 
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

774 
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

775 
accordingly. 
c13b39542972
simplified 'typedef' specifications: discontinued implicit set definition and alternative name;
wenzelm
parents:
49822
diff
changeset

776 

50646  777 
* Removed constant "chars"; prefer "Enum.enum" on type "char" 
778 
directly. INCOMPATIBILITY. 

779 

780 
* Moved operation product, sublists and n_lists from theory Enum to 

781 
List. INCOMPATIBILITY. 

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

782 

49739  783 
* Theorem UN_o generalized to SUP_comp. INCOMPATIBILITY. 
784 

49738  785 
* Class "comm_monoid_diff" formalises properties of bounded 
49388  786 
subtraction, with natural numbers and multisets as typical instances. 
787 

50646  788 
* Added combinator "Option.these" with type "'a option set => 'a set". 
789 

790 
* Theory "Transitive_Closure": renamed lemmas 

791 

792 
reflcl_tranclp > reflclp_tranclp 

793 
rtranclp_reflcl > rtranclp_reflclp 

794 

795 
INCOMPATIBILITY. 

796 

797 
* Theory "Rings": renamed lemmas (in class semiring) 

798 

799 
left_distrib ~> distrib_right 

800 
right_distrib ~> distrib_left 

801 

802 
INCOMPATIBILITY. 

803 

804 
* Generalized the definition of limits: 

805 

806 
 Introduced the predicate filterlim (LIM x F. f x :> G) which 

807 
expresses that when the input values x converge to F then the 

808 
output f x converges to G. 

809 

810 
 Added filters for convergence to positive (at_top) and negative 

811 
infinity (at_bot). 

812 

813 
 Moved infinity in the norm (at_infinity) from 

814 
Multivariate_Analysis to Complex_Main. 

815 

816 
 Removed real_tendsto_inf, it is superseded by "LIM x F. f x :> 

817 
at_top". 

818 

819 
INCOMPATIBILITY. 

820 

821 
* Theory "Library/Option_ord" provides instantiation of option type to 

822 
lattice type classes. 

823 

824 
* Theory "Library/Multiset": renamed 

825 

826 
constant fold_mset ~> Multiset.fold 

827 
fact fold_mset_commute ~> fold_mset_comm 

828 

829 
INCOMPATIBILITY. 

830 

831 
* Renamed theory Library/List_Prefix to Library/Sublist, with related 

832 
changes as follows. 

833 

834 
 Renamed constants (and related lemmas) 

49145  835 

836 
prefix ~> prefixeq 

837 
strict_prefix ~> prefix 

838 

50646  839 
 Replaced constant "postfix" by "suffixeq" with swapped argument 
840 
order (i.e., "postfix xs ys" is now "suffixeq ys xs") and dropped 

841 
old infix syntax "xs >>= ys"; use "suffixeq ys xs" instead. 

842 
Renamed lemmas accordingly. 

843 

844 
 Added constant "list_hembeq" for homeomorphic embedding on 

845 
lists. Added abbreviation "sublisteq" for special case 

846 
"list_hembeq (op =)". 

847 

848 
 Theory Library/Sublist no longer provides "order" and "bot" type 

849 
class instances for the prefix order (merely corresponding locale 

850 
interpretations). The type class instances are now in theory 

851 
Library/Prefix_Order. 

852 

853 
 The sublist relation of theory Library/Sublist_Order is now based 

854 
on "Sublist.sublisteq". Renamed lemmas accordingly: 

50516  855 

856 
le_list_append_le_same_iff ~> Sublist.sublisteq_append_le_same_iff 

857 
le_list_append_mono ~> Sublist.list_hembeq_append_mono 

858 
le_list_below_empty ~> Sublist.list_hembeq_Nil, Sublist.list_hembeq_Nil2 

859 
le_list_Cons_EX ~> Sublist.list_hembeq_ConsD 

860 
le_list_drop_Cons2 ~> Sublist.sublisteq_Cons2' 

861 
le_list_drop_Cons_neq ~> Sublist.sublisteq_Cons2_neq 

862 
le_list_drop_Cons ~> Sublist.sublisteq_Cons' 

863 
le_list_drop_many ~> Sublist.sublisteq_drop_many 

864 
le_list_filter_left ~> Sublist.sublisteq_filter_left 

865 
le_list_rev_drop_many ~> Sublist.sublisteq_rev_drop_many 

866 
le_list_rev_take_iff ~> Sublist.sublisteq_append 

867 
le_list_same_length ~> Sublist.sublisteq_same_length 

868 
le_list_take_many_iff ~> Sublist.sublisteq_append' 

49145  869 
less_eq_list.drop ~> less_eq_list_drop 
870 
less_eq_list.induct ~> less_eq_list_induct 

50516  871 
not_le_list_length ~> Sublist.not_sublisteq_length 
49145  872 

50646  873 
INCOMPATIBILITY. 
874 

875 
* New theory Library/Countable_Set. 

876 

877 
* Theory Library/Debug and Library/Parallel provide debugging and 

878 
parallel execution for code generated towards Isabelle/ML. 

879 

880 
* Theory Library/FuncSet: Extended support for Pi and extensional and 

881 
introduce the extensional dependent function space "PiE". Replaced 

882 
extensional_funcset by an abbreviation, and renamed lemmas from 

883 
extensional_funcset to PiE as follows: 

884 

885 
extensional_empty ~> PiE_empty 

886 
extensional_funcset_empty_domain ~> PiE_empty_domain 

887 
extensional_funcset_empty_range ~> PiE_empty_range 

888 
extensional_funcset_arb ~> PiE_arb 

889 
extensional_funcset_mem ~> PiE_mem 

890 
extensional_funcset_extend_domainI ~> PiE_fun_upd 

891 
extensional_funcset_restrict_domain ~> fun_upd_in_PiE 

892 
extensional_funcset_extend_domain_eq ~> PiE_insert_eq 

893 
card_extensional_funcset ~> card_PiE 

894 
finite_extensional_funcset ~> finite_PiE 

895 

896 
INCOMPATIBILITY. 

897 

898 
* Theory Library/FinFun: theory of almost everywhere constant 

899 
functions (supersedes the AFP entry "Code Generation for Functions as 

900 
Data"). 

901 

902 
* Theory Library/Phantom: generic phantom type to make a type 

903 
parameter appear in a constant's type. This alternative to adding 

904 
TYPE('a) as another parameter avoids unnecessary closures in generated 

905 
code. 

906 

907 
* Theory Library/RBT_Impl: efficient construction of redblack trees 

908 
from sorted associative lists. Merging two trees with rbt_union may 

909 
return a structurally different tree than before. Potential 

910 
INCOMPATIBILITY. 

911 

912 
* Theory Library/IArray: immutable arrays with code generation. 

913 

914 
* Theory Library/Finite_Lattice: theory of finite lattices. 

915 

916 
* HOL/Multivariate_Analysis: replaced 

917 

918 
"basis :: 'a::euclidean_space => nat => real" 

919 
"\<Chi>\<Chi> :: (nat => real) => 'a::euclidean_space" 

920 

921 
on euclidean spaces by using the inner product "_ \<bullet> _" with 

922 
vectors from the Basis set: "\<Chi>\<Chi> i. f i" is superseded by 

923 
"SUM i : Basis. f i * r i". 

924 

925 
With this change the following constants are also changed or removed: 

926 

927 
DIM('a) :: nat ~> card (Basis :: 'a set) (is an abbreviation) 

928 
a $$ i ~> inner a i (where i : Basis) 

929 
cart_base i removed 

930 
\<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

931 

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

932 
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

933 

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

934 
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

935 

50646  936 
component_le_norm ~> Basis_le_norm 
937 
euclidean_eq ~> euclidean_eq_iff 

938 
differential_zero_maxmin_component ~> differential_zero_maxmin_cart 

939 
euclidean_simps ~> inner_simps 

940 
independent_basis ~> independent_Basis 

941 
span_basis ~> span_Basis 

942 
in_span_basis ~> in_span_Basis 

943 
norm_bound_component_le ~> norm_boound_Basis_le 

944 
norm_bound_component_lt ~> norm_boound_Basis_lt 

945 
component_le_infnorm ~> Basis_le_infnorm 

946 

947 
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

948 

50141  949 
* HOL/Probability: 
50646  950 

951 
 Added simproc "measurable" to automatically prove measurability. 

952 

953 
 Added induction rules for sigma sets with disjoint union 

954 
(sigma_sets_induct_disjoint) and for Borelmeasurable functions 

955 
(borel_measurable_induct). 

956 

957 
 Added the DaniellKolmogorov theorem (the existence the limit of a 

958 
projective family). 

959 

960 
* HOL/Cardinals: Theories of ordinals and cardinals (supersedes the 

961 
AFP entry "Ordinals_and_Cardinals"). 

962 

963 
* HOL/BNF: New (co)datatype package based on bounded natural functors 

964 
with support for mixed, nested recursion and interesting nonfree 

965 
datatypes. 

48094  966 

50991  967 
* HOL/Finite_Set and Relation: added new set and relation operations 
50878  968 
expressed by Finite_Set.fold. 
969 

970 
* New theory HOL/Library/RBT_Set: implementation of sets by redblack 

971 
trees for the code generator. 

972 

973 
* HOL/Library/RBT and HOL/Library/Mapping have been converted to 

974 
Lifting/Transfer. 

975 
possible INCOMPATIBILITY. 

976 

977 
* HOL/Set: renamed Set.project > Set.filter 

978 
INCOMPATIBILITY. 

979 

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

980 

48206  981 
*** Document preparation *** 
982 

50646  983 
* Dropped legacy antiquotations "term_style" and "thm_style", since 
984 
styles may be given as arguments to "term" and "thm" already. 

985 
Discontinued legacy styles "prem1" .. "prem19". 

986 

987 
* Default LaTeX rendering for \<euro> is now based on eurosym package, 

988 
instead of slightly exotic babel/greek. 

48206  989 

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

990 
* 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

991 
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

992 
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

993 

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

994 
* Simplified custom document/build script, instead of oldstyle 
63ef2f0cf8bb
simplified custom document/build script, instead of oldstyle document/IsaMakefile;
wenzelm
parents:
48616
diff
changeset

995 
document/IsaMakefile. Minor INCOMPATIBILITY. 
63ef2f0cf8bb
simplified custom document/build script, instead of oldstyle document/IsaMakefile;
wenzelm
parents:
48616
diff
changeset

996 

48206  997 

48992  998 
*** ML *** 
999 

50646  1000 
* The default limit for maximum number of worker threads is now 8, 
1001 
instead of 4, in correspondence to capabilities of contemporary 

1002 
hardware and Poly/ML runtime system. 

1003 

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

1004 
* Type Seq.results and related operations support embedded error 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1005 
messages within lazy enumerations, and thus allow to provide 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1006 
informative errors in the absence of any usable results. 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1007 

48992  1008 
* Renamed Position.str_of to Position.here to emphasize that this is a 
1009 
formal device to inline positions into message text, but not 

1010 
necessarily printing visible text. 

1011 

1012 

48206  1013 
*** System *** 
1014 

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

1015 
* Advanced support for Isabelle sessions and build management, see 
a82910dd2270
announce advanced support for Isabelle sessions and build management;
wenzelm
parents:
48574
diff
changeset

1016 
"system" manual for the chapter of that name, especially the "isabelle 
51056  1017 
build" tool and its examples. The "isabelle mkroot" tool prepares 
1018 
session root directories for use with "isabelle build", similar to 

1019 
former "isabelle mkdir" for "isabelle usedir". Note that this affects 

1020 
document preparation as well. INCOMPATIBILITY, isabelle usedir / 

48736  1021 
mkdir / make are rendered obsolete. 
1022 

51056  1023 
* Discontinued obsolete Isabelle/build script, it is superseded by the 
1024 
regular isabelle build tool. For example: 

1025 

1026 
isabelle build s b HOL 

1027 

48736  1028 
* Discontinued obsolete "isabelle makeall". 
48585
a82910dd2270
announce advanced support for Isabelle sessions and build management;
wenzelm
parents:
48574
diff
changeset

1029 

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

1030 
* 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

1031 
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

1032 
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

1033 
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

1034 
"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

1035 

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

1036 
* The "isabelle options" tool prints Isabelle system options, as 
ceeea46bdeba
"isabelle options" prints Isabelle system options;
wenzelm
parents:
48683
diff
changeset

1037 
required for "isabelle build", for example. 
ceeea46bdeba
"isabelle options" prints Isabelle system options;
wenzelm
parents:
48683
diff
changeset

1038 

50646  1039 
* The "isabelle logo" tool produces EPS and PDF format simultaneously. 
1040 
Minor INCOMPATIBILITY in commandline options. 

1041 

1042 
* The "isabelle install" tool has now a simpler commandline. Minor 

1043 
INCOMPATIBILITY. 

1044 

48844  1045 
* The "isabelle components" tool helps to resolve addon components 
1046 
that are not bundled, or referenced from a barebones repository 

1047 
version of Isabelle. 

1048 

50646  1049 
* Settings variable ISABELLE_PLATFORM_FAMILY refers to the general 
1050 
platform family: "linux", "macos", "windows". 

1051 

1052 
* The ML system is configured as regular component, and no longer 

1053 
picked up from some surrounding directory. Potential INCOMPATIBILITY 

1054 
for homemade settings. 

50132  1055 

50701  1056 
* Improved ML runtime statistics (heap, threads, future tasks etc.). 
1057 

48206  1058 
* Discontinued support for Poly/ML 5.2.1, which was the last version 
1059 
without exception positions and advanced ML compiler/toplevel 

1060 
configuration. 

1061 

48574  1062 
* Discontinued special treatment of Proof General  no longer guess 
1063 
PROOFGENERAL_HOME based on accidental filesystem layout. Minor 

1064 
INCOMPATIBILITY: provide PROOFGENERAL_HOME and PROOFGENERAL_OPTIONS 

1065 
settings manually, or use a Proof General version that has been 

1066 
bundled as Isabelle component. 

48206  1067 

50182  1068 

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

1069 

47462  1070 
New in Isabelle2012 (May 2012) 
1071 
 

45109  1072 

45593  1073 
*** General *** 
1074 

45614  1075 
* Prover IDE (PIDE) improvements: 
1076 

47585  1077 
 more robust Sledgehammer integration (as before the sledgehammer 
47806  1078 
commandline needs to be typed into the source buffer) 
45614  1079 
 markup for bound variables 
47806  1080 
 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

1081 
 support for userdefined Isar commands within the running session 
47158  1082 
 improved support for Unicode outside original 16bit range 
1083 
e.g. glyph for \<A> (thanks to jEdit 4.5.1) 

45614  1084 

47806  1085 
* Forward declaration of outer syntax keywords within the theory 
1086 
header  minor INCOMPATIBILITY for userdefined commands. Allow new 

1087 
commands to be used in the same theory where defined. 

46485  1088 

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

1089 
* 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

1090 
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

1091 
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

1092 
'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

1093 
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

1094 

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

1095 
context 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1096 
fixes x y z :: 'a 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1097 
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

1098 
begin 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1099 

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

1100 
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

1101 

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

1102 
end 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1103 

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

1104 
thm my_trans 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1105 

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

1106 
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

1107 
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

1108 
~~/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

1109 

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

1110 
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

1111 
... begin ... end" block as well. 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1112 

47484  1113 
* Bundled declarations associate attributed fact expressions with a 
1114 
given name in the context. These may be later included in other 

1115 
contexts. This allows to manage context extensions casually, without 

47855  1116 
the logical dependencies of locales and locale interpretation. See 
1117 
commands 'bundle', 'include', 'including' etc. in the isarref manual. 

47484  1118 

47829  1119 
* Commands 'lemmas' and 'theorems' allow local variables using 'for' 
1120 
declaration, and results are standardized before being stored. Thus 

1121 
oldstyle "standard" after instantiation or composition of facts 

1122 
becomes obsolete. Minor INCOMPATIBILITY, due to potential change of 

1123 
indices of schematic variables. 

1124 

1125 
* Rule attributes in local theory declarations (e.g. locale or class) 

1126 
are now statically evaluated: the resulting theorem is stored instead 

1127 
of the original expression. INCOMPATIBILITY in rare situations, where 

1128 
the historic accident of dynamic reevaluation in interpretations 

1129 
etc. was exploited. 

1130 

1131 
* New tutorial "Programming and Proving in Isabelle/HOL" 

1132 
("progprove"). It completely supersedes "A Tutorial Introduction to 

1133 
Structured Isar Proofs" ("isaroverview"), which has been removed. It 

1134 
also supersedes "Isabelle/HOL, A Proof Assistant for HigherOrder 

1135 
Logic" as the recommended beginners tutorial, but does not cover all 

1136 
of the material of that old tutorial. 

1137 

1138 
* Updated and extended reference manuals: "isarref", 

1139 
"implementation", "system"; reduced remaining material in old "ref" 

1140 
manual. 

1141 

1142 

1143 
*** Pure *** 

1144 

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

1145 
* Command 'definition' no longer exports the foundational "raw_def" 
80123a220219
'definition' no longer exports the foundational "raw_def";
wenzelm
parents:
46966
diff
changeset

1146 
into the user context. Minor INCOMPATIBILITY, may use the regular 
80123a220219
'definition' no longer exports the foundational "raw_def";
wenzelm
parents:
46966
diff
changeset

1147 
"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

1148 

47855  1149 
* Attribute "abs_def" turns an equation of the form "f x y == t" into 
1150 
"f == %x y. t", which ensures that "simp" or "unfold" steps always 

1151 
expand it. This also works for objectlogic equality. (Formerly 

1152 
undocumented feature.) 

1153 

47856  1154 
* Sort constraints are now propagated in simultaneous statements, just 
1155 
like type constraints. INCOMPATIBILITY in rare situations, where 

1156 
distinct sorts used to be assigned accidentally. For example: 

1157 

1158 
lemma "P (x::'a::foo)" and "Q (y::'a::bar)"  "now illegal" 

1159 

1160 
lemma "P (x::'a)" and "Q (y::'a::bar)" 

1161 
 "now uniform 'a::bar instead of default sort for first occurrence (!)" 

1162 

1163 
* Rule composition via attribute "OF" (or ML functions OF/MRS) is more 

1164 
tolerant against multiple unifiers, as long as the final result is 

1165 
unique. (As before, rules are composed in canonical righttoleft 

1166 
order to accommodate newly introduced premises.) 

1167 

47806  1168 
* Renamed some inner syntax categories: 
1169 

1170 
num ~> num_token 

1171 
xnum ~> xnum_token 

1172 
xstr ~> str_token 

1173 

1174 
Minor INCOMPATIBILITY. Note that in practice "num_const" or 

1175 
"num_position" etc. are mainly used instead (which also include 

1176 
position information via constraints). 

1177 

47829  1178 
* Simplified configuration options for syntax ambiguity: see 
1179 
"syntax_ambiguity_warning" and "syntax_ambiguity_limit" in isarref 

1180 
manual. Minor INCOMPATIBILITY. 

1181 

47856  1182 
* Discontinued configuration option "syntax_positions": atomic terms 
1183 
in parse trees are always annotated by position constraints. 

45134  1184 

47464  1185 
* Old code generator for SML and its commands 'code_module', 
45383  1186 
'code_library', 'consts_code', 'types_code' have been discontinued. 
46028
9f113cdf3d66
attribute code_abbrev superseedes code_unfold_post
haftmann
parents:
46014
diff
changeset

1187 
Use commands of the generic code generator instead. INCOMPATIBILITY. 
45383  1188 

47464  1189 
* Redundant attribute "code_inline" has been discontinued. Use 
1190 
"code_unfold" instead. INCOMPATIBILITY. 

1191 

1192 
* Dropped attribute "code_unfold_post" in favor of the its dual 

1193 
"code_abbrev", which yields a common pattern in definitions like 

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

1194 

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

1195 
definition [code_abbrev]: "f = t" 
9f113cdf3d66
attribute code_abbrev superseedes code_unfold_post
haftmann
parents:
46014
diff
changeset

1196 

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

1197 
INCOMPATIBILITY. 
45383  1198 

47856  1199 
* Obsolete 'types' command has been discontinued. Use 'type_synonym' 
1200 
instead. INCOMPATIBILITY. 

1201 

1202 
* Discontinued old "prems" fact, which used to refer to the accidental 

1203 
collection of foundational premises in the context (already marked as 

1204 
legacy since Isabelle2011). 

47855  1205 

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

1206 

45122  1207 
*** HOL *** 
1208 

47464  1209 
* Type 'a set is now a proper type constructor (just as before 
1210 
Isabelle2008). Definitions mem_def and Collect_def have disappeared. 

1211 
Nontrivial INCOMPATIBILITY. For developments keeping predicates and 

47855  1212 
sets separate, it is often sufficient to rephrase some set S that has 
1213 
been accidentally used as predicates by "%x. x : S", and some 

1214 
predicate P that has been accidentally used as set by "{x. P x}". 

1215 
Corresponding proofs in a first step should be pruned from any 

1216 
tinkering with former theorems mem_def and Collect_def as far as 

1217 
possible. 

1218 

1219 
For developments which deliberately mix predicates and sets, a 

47464  1220 
planning step is necessary to determine what should become a predicate 
1221 
and what a set. It can be helpful to carry out that step in 

1222 
Isabelle20111 before jumping right into the current release. 

1223 

47855  1224 
* Code generation by default implements sets as container type rather 
1225 
than predicates. INCOMPATIBILITY. 

1226 

1227 
* New type synonym 'a rel = ('a * 'a) set 

1228 

47464  1229 
* The representation of numerals has changed. Datatype "num" 
1230 
represents strictly positive binary numerals, along with functions 

1231 
"numeral :: num => 'a" and "neg_numeral :: num => 'a" to represent 

47855  1232 
positive and negated numeric literals, respectively. See also 
1233 
definitions in ~~/src/HOL/Num.thy. Potential INCOMPATIBILITY, some 

1234 
user theories may require adaptations as follows: 

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

1235 

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

1236 
 Theorems with number_ring or number_semiring constraints: These 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1237 
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

1238 

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

1239 
 Theories defining numeric types: Remove number, number_semiring, 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1240 
and number_ring instances. Defer all theorems about numerals until 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1241 
after classes one and semigroup_add have been instantiated. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1242 

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

1243 
 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

1244 
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

1245 

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

1246 
 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

1247 
automatically support numerals now, so more simp rules and 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1248 
simprocs may now apply within the proof. 
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 
 Definitions and theorems using old constructors Pls/Min/Bit0/Bit1: 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1251 
Redefine using other integer operations. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1252 

47855  1253 
* Transfer: New package intended to generalize the existing 
1254 
"descending" method and related theorem attributes from the Quotient 

1255 
package. (Not all functionality is implemented yet, but future 

1256 
development will focus on Transfer as an eventual replacement for the 

1257 
corresponding parts of the Quotient package.) 

47809  1258 

1259 
 transfer_rule attribute: Maintains a collection of transfer rules, 

1260 
which relate constants at two different types. Transfer rules may 

1261 
relate different type instances of the same polymorphic constant, 

1262 
or they may relate an operation on a raw type to a corresponding 

1263 
operation on an abstract type (quotient or subtype). For example: 

1264 

1265 
((A ===> B) ===> list_all2 A ===> list_all2 B) map map 

1266 
(cr_int ===> cr_int ===> cr_int) (%(x,y) (u,v). (x+u, y+v)) plus_int 

1267 

1268 
 transfer method: Replaces a subgoal on abstract types with an 

1269 
equivalent subgoal on the corresponding raw types. Constants are 

1270 
replaced with corresponding ones according to the transfer rules. 

1271 
Goals are generalized over all free variables by default; this is 

47851  1272 
necessary for variables whose types change, but can be overridden 
47855  1273 
for specific variables with e.g. "transfer fixing: x y z". The 
47809  1274 
variant transfer' method allows replacing a subgoal with one that 
1275 
is logically stronger (rather than equivalent). 

1276 

1277 
 relator_eq attribute: Collects identity laws for relators of 

1278 
various type constructors, e.g. "list_all2 (op =) = (op =)". The 

1279 
transfer method uses these lemmas to infer transfer rules for 

1280 
nonpolymorphic constants on the fly. 

1281 

1282 
 transfer_prover method: Assists with proving a transfer rule for a 

1283 
new constant, provided the constant is defined in terms of other 

1284 
constants that already have transfer rules. It should be applied 

1285 
after unfolding the constant definitions. 

1286 

1287 
 HOL/ex/Transfer_Int_Nat.thy: Example theory demonstrating transfer 

1288 
from type nat to type int. 

1289 

47851  1290 
* Lifting: New package intended to generalize the quotient_definition 
1291 
facility of the Quotient package; designed to work with Transfer. 

47809  1292 

1293 
 lift_definition command: Defines operations on an abstract type in 

1294 
terms of a corresponding operation on a representation 

1295 
type. Example syntax: 

1296 

1297 
lift_definition dlist_insert :: "'a => 'a dlist => 'a dlist" 

1298 
is List.insert 

1299 

1300 
Users must discharge a respectfulness proof obligation when each 

1301 
constant is defined. (For a type copy, i.e. a typedef with UNIV, 

1302 
the proof is discharged automatically.) The obligation is 

1303 
presented in a userfriendly, readable form; a respectfulness 

1304 
theorem in the standard format and a transfer rule are generated 

1305 
by the package. 

1306 

1307 
 Integration with code_abstype: For typedefs (e.g. subtypes 

1308 
corresponding to a datatype invariant, such as dlist), 

1309 
lift_definition generates a code certificate theorem and sets up 

1310 
code generation for each constant. 

1311 

1312 
 setup_lifting command: Sets up the Lifting package to work with a 

1313 
userdefined type. The user must provide either a quotient theorem 

1314 
or a type_definition theorem. The package configures transfer 

1315 
rules for equality and quantifiers on the type, and sets up the 

1316 
lift_definition command to work with the type. 

1317 

1318 
 Usage examples: See Quotient_Examples/Lift_DList.thy, 

47851  1319 
Quotient_Examples/Lift_RBT.thy, Quotient_Examples/Lift_FSet.thy, 
1320 
Word/Word.thy and Library/Float.thy. 

47809  1321 

1322 
* Quotient package: 

1323 

1324 
 The 'quotient_type' command now supports a 'morphisms' option with 

1325 
rep and abs functions, similar to typedef. 

1326 

1327 
 'quotient_type' sets up new types to work with the Lifting and 

1328 
Transfer packages, as with 'setup_lifting'. 

1329 

1330 
 The 'quotient_definition' command now requires the user to prove a 

1331 
respectfulness property at the point where the constant is 

1332 
defined, similar to lift_definition; INCOMPATIBILITY. 

1333 

1334 
 Renamed predicate 'Quotient' to 'Quotient3', and renamed theorems 

1335 
accordingly, INCOMPATIBILITY. 

1336 

1337 
* New diagnostic command 'find_unused_assms' to find potentially 

1338 
superfluous assumptions in theorems using Quickcheck. 

1339 

1340 
* Quickcheck: 

1341 

1342 
 Quickcheck returns variable assignments as counterexamples, which 

1343 
allows to reveal the underspecification of functions under test. 

1344 
For example, refuting "hd xs = x", it presents the variable 

1345 
assignment xs = [] and x = a1 as a counterexample, assuming that 

1346 
any property is false whenever "hd []" occurs in it. 

1347 

1348 
These counterexample are marked as potentially spurious, as 

1349 
Quickcheck also returns "xs = []" as a counterexample to the 

1350 
obvious theorem "hd xs = hd xs". 

1351 

1352 
After finding a potentially spurious counterexample, Quickcheck 

1353 
continues searching for genuine ones. 

1354 

1355 
By default, Quickcheck shows potentially spurious and genuine 

1356 
counterexamples. The option "genuine_only" sets quickcheck to only 

1357 
show genuine counterexamples. 

1358 

1359 
 The command 'quickcheck_generator' creates random and exhaustive 

1360 
value generators for a given type and operations. 

1361 

1362 
It generates values by using the operations as if they were 

1363 
constructors of that type. 

1364 

1365 
 Support for multisets. 

1366 

1367 
 Added "use_subtype" options. 

1368 

1369 
 Added "quickcheck_locale" configuration to specify how to process 

1370 
conjectures in a locale context. 

1371 

47855  1372 
* Nitpick: Fixed infinite loop caused by the 'peephole_optim' option 
1373 
and affecting 'rat' and 'real'. 

47809  1374 

1375 
* Sledgehammer: 

1376 
 Integrated more tightly with SPASS, as described in the ITP 2012 

1377 
paper "More SPASS with Isabelle". 

1378 
 Made it try "smt" as a fallback if "metis" fails or times out. 

1379 
 Added support for the following provers: AltErgo (via Why3 and 

1380 
TFF1), iProver, iProverEq. 

1381 
 Sped up the minimizer. 

1382 
 Added "lam_trans", "uncurry_aliases", and "minimize" options. 

1383 
 Renamed "slicing" ("no_slicing") option to "slice" ("dont_slice"). 

1384 
 Renamed "sound" option to "strict". 

1385 

47855  1386 
* Metis: Added possibility to specify lambda translations scheme as a 
1387 
parenthesized argument (e.g., "by (metis (lifting) ...)"). 

1388 

1389 
* SMT: Renamed "smt_fixed" option to "smt_read_only_certificates". 

1390 

1391 
* Command 'try0': Renamed from 'try_methods'. INCOMPATIBILITY. 

47809  1392 

47856  1393 
* New "case_product" attribute to generate a case rule doing multiple 
1394 
case distinctions at the same time. E.g. 

1395 

1396 
list.exhaust [case_product nat.exhaust] 

1397 

1398 
produces a rule which can be used to perform case distinction on both 

1399 
a list and a nat. 

1400 

47809  1401 
* New "eventually_elim" method as a generalized variant of the 
47855  1402 
eventually_elim* rules. Supports structured proofs. 
1403 

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

1404 
* Typedef with implicit set definition is considered legacy. Use 
5f9ce06f281e
typedef with implicit set definition is considered legacy;
wenzelm
parents:
47694
diff
changeset

1405 
"typedef (open)" form instead, which will eventually become the 
5f9ce06f281e
typedef with implicit set definition is considered legacy;
wenzelm
parents:
47694
diff
changeset

1406 
default. 
5f9ce06f281e
typedef with implicit set definition is considered legacy;
wenzelm
parents:
47694
diff
changeset

1407 

47856  1408 
* Record: code generation can be switched off manually with 
1409 

1410 
declare [[record_coden = false]]  "default true" 

1411 

1412 
* Datatype: type parameters allow explicit sort constraints. 

1413 

47855  1414 
* Concrete syntax for case expressions includes constraints for source 
1415 
positions, and thus produces Prover IDE markup for its bindings. 

1416 
INCOMPATIBILITY for oldstyle syntax translations that augment the 

1417 
pattern notation; e.g. see src/HOL/HOLCF/One.thy for translations of 

1418 
one_case. 

1419 

1420 
* Clarified attribute "mono_set": pure declaration without modifying 

1421 
the result of the fact expression. 

1422 

46752
e9e7209eb375
more fundamental predtoset conversions, particularly by means of inductive_set; associated consolidation 