author  haftmann 
Mon, 25 Nov 2013 18:18:58 +0100  
changeset 54587  19cd731eb745 
parent 54533  05738b7d8191 
child 54588  42b9baf50f8f 
permissions  rwrr 
5363  1 
Isabelle NEWS  history userrelevant changes 
2 
============================================== 

2553  3 

54055  4 
New in this Isabelle version 
5 
 

6 

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

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

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

11 

12 

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moving generic lemmas out of theory parity, disregarding some unused auxiliary lemmas;
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*** HOL *** 
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54295  15 
* Qualified constant names Wellfounded.acc, Wellfounded.accp. 
16 
INCOMPATIBILITY. 

17 

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

20 
INCOMPATIBILITY. 

21 

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

23 
nat_even_iff_2_dvd, int_even_iff_2_dvd ~> even_iff_2_dvd 

24 
even_zero_(natint) ~> even_zero 

25 
INCOMPATIBILITY. 

54055  26 

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

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

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

54230
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* Elimination of fact duplicates: 
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38 
equals_zero_I ~> minus_unique 
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39 
diff_eq_0_iff_eq ~> right_minus_eq 
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40 
INCOMPATIBILITY. 
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41 

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42 
* Fact name consolidation: 
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43 
diff_def, diff_minus, ab_diff_minus ~> diff_conv_add_uminus 
54250  44 
minus_le_self_iff ~> neg_less_eq_nonneg 
45 
le_minus_self_iff ~> less_eq_neg_nonpos 

46 
neg_less_nonneg ~> neg_less_pos 

47 
less_minus_self_iff ~> less_neg_neg [simp] 

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INCOMPATIBILITY. 
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49 

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* More simplification rules on unary and binary minus: 
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add_diff_cancel, add_diff_cancel_left, add_le_same_cancel1, 
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add_le_same_cancel2, add_less_same_cancel1, add_less_same_cancel2, 
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add_minus_cancel, diff_add_cancel, le_add_same_cancel1, 
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le_add_same_cancel2, less_add_same_cancel1, less_add_same_cancel2, 
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minus_add_cancel, uminus_add_conv_diff. These correspondingly 
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56 
have been taken away from fact collections algebra_simps and 
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57 
field_simps. INCOMPATIBILITY. 
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58 

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59 
To restore proofs, the following patterns are helpful: 
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61 
a) Arbitrary failing proof not involving "diff_def": 
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Consider simplification with algebra_simps or field_simps. 
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63 

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64 
b) Lifting rules from addition to subtraction: 
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Try with "using <rule for addition> of [… " _" …]" by simp". 
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c) Simplification with "diff_def": just drop "diff_def". 
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Consider simplification with algebra_simps or field_simps; 
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or the brute way with 
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"simp add: diff_conv_add_uminus del: add_uminus_conv_diff". 
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71 

54264  72 
* SUP and INF generalized to conditionally_complete_lattice 
73 

74 
* Theory Lubs moved HOL image to HOLLibrary. It is replaced by 

75 
Conditionally_Complete_Lattices. INCOMPATIBILITY. 

76 

77 
* Introduce bdd_above and bdd_below in Conditionally_Complete_Lattices, use them 

78 
instead of explicitly stating boundedness of sets. 

79 

80 

54449
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*** ML *** 
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* Toplevel function "use" refers to raw ML bootstrap environment, 
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without Isar context nor antiquotations. Potential INCOMPATIBILITY. 
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Note that 'ML_file' is the canonical command to load ML files into the 
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toplevel function "use" refers to raw ML bootstrap environment;
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formal context. 
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toplevel function "use" refers to raw ML bootstrap environment;
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88 

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89 

53971  90 
New in Isabelle20131 (November 2013) 
91 
 

50994  92 

51293
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discontinued obsolete 'uses' within theory header;
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*** General *** 
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discontinued obsolete 'uses' within theory header;
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94 

53971  95 
* Discontinued obsolete 'uses' within theory header. Note that 
96 
commands like 'ML_file' work without separate declaration of file 

97 
dependencies. Minor INCOMPATIBILITY. 

98 

99 
* Discontinued redundant 'use' command, which was superseded by 

100 
'ML_file' in Isabelle2013. Minor INCOMPATIBILITY. 

101 

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* Simplified subscripts within identifiers, using plain \<^sub> 
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instead of the second copy \<^isub> and \<^isup>. Superscripts are 
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only for literal tokens within notation; explicit mixfix annotations 
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for consts or fixed variables may be used as fallback for unusual 
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names. Obsolete \<twosuperior> has been expanded to \<^sup>2 in 
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107 
Isabelle/HOL. INCOMPATIBILITY, use "isabelle update_sub_sup" to 
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108 
standardize symbols as a starting point for further manual cleanup. 
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109 
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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112 

53021
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* Document antiquotations: term style "isub" has been renamed to 
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114 
"sub". Minor INCOMPATIBILITY. 
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115 

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* Uniform management of "quick_and_dirty" as system option (see also 
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"isabelle options"), configuration option within the context (see also 
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118 
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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quick_and_dirty, instead of historical poking into mutable reference. 
52059  121 

52060  122 
* Renamed command 'print_configs' to 'print_options'. Minor 
123 
INCOMPATIBILITY. 

124 

52430  125 
* Proper diagnostic command 'print_state'. Old 'pr' (with its 
126 
implicit change of some global references) is retained for now as 

127 
control command, e.g. for ProofGeneral 3.7.x. 

128 

52549  129 
* Discontinued 'print_drafts' command with its oldfashioned PS output 
130 
and Unix commandline print spooling. Minor INCOMPATIBILITY: use 

131 
'display_drafts' instead and print via the regular document viewer. 

132 

53971  133 
* Updated and extended "isarref" and "implementation" manual, 
134 
eliminated old "ref" manual. 

135 

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51533  137 
*** Prover IDE  Isabelle/Scala/jEdit *** 
138 

53971  139 
* New manual "jedit" for Isabelle/jEdit, see isabelle doc or 
53852  140 
Documentation panel. 
141 

53971  142 
* Dockable window "Documentation" provides access to Isabelle 
143 
documentation. 

52646  144 

52949  145 
* Dockable window "Find" provides query operations for formal entities 
146 
(GUI frontend to 'find_theorems' command). 

147 

53050  148 
* Dockable window "Sledgehammer" manages asynchronous / parallel 
149 
sledgehammer runs over existing document sources, independently of 

150 
normal editing and checking process. 

151 

51533  152 
* Dockable window "Timing" provides an overview of relevant command 
54332  153 
timing information, depending on option jedit_timing_threshold. The 
154 
same timing information is shown in the extended tooltip of the 

155 
command keyword, when hovering the mouse over it while the CONTROL or 

156 
COMMAND modifier is pressed. 

51533  157 

53971  158 
* Improved dockable window "Theories": Continuous checking of proof 
159 
document (visible and required parts) may be controlled explicitly, 

160 
using check box or shortcut "C+e ENTER". Individual theory nodes may 

161 
be marked explicitly as required and checked in full, using check box 

162 
or shortcut "C+e SPACE". 

163 

54305  164 
* Improved completion mechanism, which is now managed by the 
165 
Isabelle/jEdit plugin instead of SideKick. Refined table of Isabelle 

166 
symbol abbreviations (see $ISABELLE_HOME/etc/symbols). 

167 

54319  168 
* Standard jEdit keyboard shortcut C+b completeword is remapped to 
169 
isabelle.complete for explicit completion in Isabelle sources. 

170 
INCOMPATIBILITY wrt. jEdit defaults, may have to invent new shortcuts 

171 
to resolve conflict. 

172 

54305  173 
* Improved support of various "minor modes" for Isabelle NEWS, 
174 
options, session ROOT etc., with completion and SideKick tree view. 

175 

53971  176 
* Strictly monotonic document update, without premature cancellation of 
177 
running transactions that are still needed: avoid reset/restart of 

178 
such command executions while editing. 

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53971  180 
* Support for asynchronous print functions, as overlay to existing 
181 
document content. 

182 

183 
* Support for automatic tools in HOL, which try to prove or disprove 

184 
toplevel theorem statements. 

185 

186 
* Action isabelle.resetfontsize resets main text area font size 

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according to Isabelle/Scala plugin option "jedit_font_reset_size" (see 
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also "Plugin Options / Isabelle / General"). It can be bound to some 
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keyboard shortcut by the user (e.g. C+0 and/or C+NUMPAD0). 
53971  190 

191 
* File specifications in jEdit (e.g. file browser) may refer to 

54351  192 
$ISABELLE_HOME and $ISABELLE_HOME_USER on all platforms. Discontinued 
193 
obsolete $ISABELLE_HOME_WINDOWS variable. 

53971  194 

195 
* Improved support for Linux lookandfeel "GTK+", see also "Utilities 

196 
/ Global Options / Appearance". 

197 

198 
* Improved support of native Mac OS X functionality via "MacOSX" 

199 
plugin, which is now enabled by default. 

200 

51533  201 

51313  202 
*** Pure *** 
203 

54049  204 
* Commands 'interpretation' and 'sublocale' are now targetsensitive. 
205 
In particular, 'interpretation' allows for nonpersistent 

206 
interpretation within "context ... begin ... end" blocks offering a 

207 
lightweight alternative to 'sublocale'. See "isarref" manual for 

208 
details. 

51747  209 

51565  210 
* Improved locales diagnostic command 'print_dependencies'. 
211 

51313  212 
* Discontinued obsolete 'axioms' command, which has been marked as 
213 
legacy since Isabelle20092. INCOMPATIBILITY, use 'axiomatization' 

214 
instead, while observing its uniform scope for polymorphism. 

215 

51316
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* Discontinued empty name bindings in 'axiomatization'. 
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INCOMPATIBILITY. 
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218 

53971  219 
* System option "proofs" has been discontinued. Instead the global 
220 
state of Proofterm.proofs is persistently compiled into logic images 

221 
as required, notably HOLProofs. Users no longer need to change 

222 
Proofterm.proofs dynamically. Minor INCOMPATIBILITY. 

223 

224 
* Syntax translation functions (print_translation etc.) always depend 

225 
on Proof.context. Discontinued former "(advanced)" option  this is 

226 
now the default. Minor INCOMPATIBILITY. 

227 

228 
* Former global reference trace_unify_fail is now available as 

229 
configuration option "unify_trace_failure" (global context only). 

230 

52463  231 
* SELECT_GOAL now retains the syntactic context of the overall goal 
232 
state (schematic variables etc.). Potential INCOMPATIBILITY in rare 

233 
situations. 

234 

51313  235 

51002
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*** HOL *** 
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54032  238 
* Stronger precedence of syntax for big intersection and union on 
239 
sets, in accordance with corresponding lattice operations. 

240 
INCOMPATIBILITY. 

241 

242 
* Notation "{p:A. P}" now allows tuple patterns as well. 

243 

244 
* Nested case expressions are now translated in a separate check phase 

245 
rather than during parsing. The data for case combinators is separated 

246 
from the datatype package. The declaration attribute 

247 
"case_translation" can be used to register new case combinators: 

248 

249 
declare [[case_translation case_combinator constructor1 ... constructorN]] 

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250 

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251 
* Code generator: 
53160  252 
 'code_printing' unifies 'code_const' / 'code_type' / 'code_class' / 
253 
'code_instance'. 

254 
 'code_identifier' declares name hints for arbitrary identifiers in 

255 
generated code, subsuming 'code_modulename'. 

53983  256 

257 
See the isarref manual for syntax diagrams, and the HOL theories for 

258 
examples. 

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259 

54032  260 
* Attibute 'code': 'code' now declares concrete and abstract code 
261 
equations uniformly. Use explicit 'code equation' and 'code abstract' 

262 
to distinguish both when desired. 

263 

264 
* Discontinued theories Code_Integer and Efficient_Nat by a more 

265 
finegrain stack of theories Code_Target_Int, Code_Binary_Nat, 

266 
Code_Target_Nat and Code_Target_Numeral. See the tutorial on code 

267 
generation for details. INCOMPATIBILITY. 

268 

269 
* Numeric types are mapped by default to target language numerals: 

270 
natural (replaces former code_numeral) and integer (replaces former 

271 
code_int). Conversions are available as integer_of_natural / 

272 
natural_of_integer / integer_of_nat / nat_of_integer (in HOL) and 

273 
Code_Numeral.integer_of_natural / Code_Numeral.natural_of_integer (in 

274 
ML). INCOMPATIBILITY. 

275 

276 
* Function package: For mutually recursive functions f and g, separate 

277 
cases rules f.cases and g.cases are generated instead of unusable 

278 
f_g.cases which exposed internal sum types. Potential INCOMPATIBILITY, 

279 
in the case that the unusable rule was used nevertheless. 

280 

281 
* Function package: For each function f, new rules f.elims are 

282 
generated, which eliminate equalities of the form "f x = t". 

283 

284 
* New command 'fun_cases' derives adhoc elimination rules for 

285 
function equations as simplified instances of f.elims, analogous to 

286 
inductive_cases. See ~~/src/HOL/ex/Fundefs.thy for some examples. 

53307  287 

54021  288 
* Lifting: 
289 
 parametrized correspondence relations are now supported: 

54378  290 
+ parametricity theorems for the raw term can be specified in 
54021  291 
the command lift_definition, which allow us to generate stronger 
292 
transfer rules 

293 
+ setup_lifting generates stronger transfer rules if parametric 

294 
correspondence relation can be generated 

295 
+ various new properties of the relator must be specified to support 

296 
parametricity 

297 
+ parametricity theorem for the Quotient relation can be specified 

298 
 setup_lifting generates domain rules for the Transfer package 

299 
 stronger reflexivity prover of respectfulness theorems for type 

300 
copies 

301 
 ===> and > are now local. The symbols can be introduced 

302 
by interpreting the locale lifting_syntax (typically in an 

303 
anonymous context) 

54378  304 
 Lifting/Transfer relevant parts of Library/Quotient_* are now in 
54021  305 
Main. Potential INCOMPATIBILITY 
306 
 new commands for restoring and deleting Lifting/Transfer context: 

307 
lifting_forget, lifting_update 

54378  308 
 the command print_quotmaps was renamed to print_quot_maps. 
54021  309 
INCOMPATIBILITY 
310 

311 
* Transfer: 

54378  312 
 better support for domains in Transfer: replace Domainp T 
54021  313 
by the actual invariant in a transferred goal 
314 
 transfer rules can have as assumptions other transfer rules 

315 
 Experimental support for transferring from the raw level to the 

316 
abstract level: Transfer.transferred attribute 

317 
 Attribute version of the transfer method: untransferred attribute 

318 

52286  319 
* Reification and reflection: 
53160  320 
 Reification is now directly available in HOLMain in structure 
321 
"Reification". 

322 
 Reflection now handles multiple lists with variables also. 

323 
 The whole reflection stack has been decomposed into conversions. 

52286  324 
INCOMPATIBILITY. 
325 

51489  326 
* Revised devices for recursive definitions over finite sets: 
327 
 Only one fundamental fold combinator on finite set remains: 

328 
Finite_Set.fold :: ('a => 'b => 'b) => 'b => 'a set => 'b 

329 
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

330 
 Locales ("mini packages") for fundamental definitions with 
51489  331 
Finite_Set.fold: folding, folding_idem. 
332 
 Locales comm_monoid_set, semilattice_order_set and 

333 
semilattice_neutr_order_set for big operators on sets. 

334 
See theory Big_Operators for canonical examples. 

335 
Note that foundational constants comm_monoid_set.F and 

336 
semilattice_set.F correspond to former combinators fold_image 

337 
and fold1 respectively. These are now gone. You may use 

51490  338 
those foundational constants as substitutes, but it is 
53983  339 
preferable to interpret the above locales accordingly. 
51489  340 
 Dropped class ab_semigroup_idem_mult (special case of lattice, 
341 
no longer needed in connection with Finite_Set.fold etc.) 

342 
 Fact renames: 

343 
card.union_inter ~> card_Un_Int [symmetric] 

344 
card.union_disjoint ~> card_Un_disjoint 

345 
INCOMPATIBILITY. 

346 

51487  347 
* Locale hierarchy for abstract orderings and (semi)lattices. 
348 

53526  349 
* Complete_Partial_Order.admissible is defined outside the type class 
350 
ccpo, but with mandatory prefix ccpo. Admissibility theorems lose the 

351 
class predicate assumption or sort constraint when possible. 

53362  352 
INCOMPATIBILITY. 
353 

53160  354 
* Introduce type class "conditionally_complete_lattice": Like a 
355 
complete lattice but does not assume the existence of the top and 

356 
bottom elements. Allows to generalize some lemmas about reals and 

357 
extended reals. Removed SupInf and replaced it by the instantiation 

358 
of conditionally_complete_lattice for real. Renamed lemmas about 

359 
conditionallycomplete lattice from Sup_... to cSup_... and from 

360 
Inf_... to cInf_... to avoid hidding of similar complete lattice 

361 
lemmas. 

362 

363 
* Introduce type class linear_continuum as combination of 

364 
conditionallycomplete lattices and inner dense linorders which have 

365 
more than one element. INCOMPATIBILITY. 

366 

53983  367 
* Introduced type classes order_top and order_bot. The old classes top 
368 
and bot only contain the syntax without assumptions. INCOMPATIBILITY: 

369 
Rename bot > order_bot, top > order_top 

53683  370 

53160  371 
* Introduce type classes "no_top" and "no_bot" for orderings without 
372 
top and bottom elements. 

51732  373 

374 
* Split dense_linorder into inner_dense_order and no_top, no_bot. 

375 

376 
* Complex_Main: Unify and move various concepts from 

53160  377 
HOLMultivariate_Analysis to HOLComplex_Main. 
51732  378 

53983  379 
 Introduce type class (lin)order_topology and 
380 
linear_continuum_topology. Allows to generalize theorems about 

381 
limits and order. Instances are reals and extended reals. 

51732  382 

383 
 continuous and continuos_on from Multivariate_Analysis: 

53983  384 
"continuous" is the continuity of a function at a filter. "isCont" 
385 
is now an abbrevitation: "isCont x f == continuous (at _) f". 

386 

387 
Generalized continuity lemmas from isCont to continuous on an 

388 
arbitrary filter. 

389 

390 
 compact from Multivariate_Analysis. Use Bolzano's lemma to prove 

391 
compactness of closed intervals on reals. Continuous functions 

392 
attain infimum and supremum on compact sets. The inverse of a 

393 
continuous function is continuous, when the function is continuous 

394 
on a compact set. 

51732  395 

396 
 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

397 
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

398 
linear_continuum_topology). 
51732  399 

400 
 first_countable_topology from Multivariate_Analysis. Is used to 

53983  401 
show equivalence of properties on the neighbourhood filter of x and 
402 
on all sequences converging to x. 

403 

404 
 FDERIV: Definition of has_derivative moved to Deriv.thy. Moved 

405 
theorems from Library/FDERIV.thy to Deriv.thy and base the 

406 
definition of DERIV on FDERIV. Add variants of DERIV and FDERIV 

407 
which are restricted to sets, i.e. to represent derivatives from 

408 
left or right. 

51732  409 

410 
 Removed the withinfilter. It is replaced by the principal filter: 

411 

412 
F within X = inf F (principal X) 

413 

414 
 Introduce "at x within U" as a single constant, "at x" is now an 

415 
abbreviation for "at x within UNIV" 

416 

53983  417 
 Introduce named theorem collections tendsto_intros, 
418 
continuous_intros, continuous_on_intros and FDERIV_intros. Theorems 

419 
in tendsto_intros (or FDERIV_intros) are also available as 

420 
tendsto_eq_intros (or FDERIV_eq_intros) where the righthand side 

421 
is replaced by a congruence rule. This allows to apply them as 

422 
intro rules and then proving equivalence by the simplifier. 

51732  423 

424 
 Restructured theories in HOLComplex_Main: 

425 

426 
+ Moved RealDef and RComplete into Real 

427 

428 
+ Introduced Topological_Spaces and moved theorems about 

429 
topological spaces, filters, limits and continuity to it 

430 

431 
+ Renamed RealVector to Real_Vector_Spaces 

432 

53983  433 
+ Split Lim, SEQ, Series into Topological_Spaces, 
434 
Real_Vector_Spaces, and Limits 

51732  435 

436 
+ Moved Ln and Log to Transcendental 

437 

438 
+ Moved theorems about continuity from Deriv to Topological_Spaces 

439 

440 
 Remove various auxiliary lemmas. 

441 

442 
INCOMPATIBILITY. 

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

443 

53738  444 
* Nitpick: 
53803  445 
 Added option "spy" 
53738  446 
 Reduce incidence of "too high arity" errors 
447 

51137  448 
* Sledgehammer: 
449 
 Renamed option: 

450 
isar_shrink ~> isar_compress 

53738  451 
INCOMPATIBILITY. 
53801  452 
 Added options "isar_try0", "spy" 
53728  453 
 Better support for "isar_proofs" 
53766  454 
 MaSh has been finedtuned and now runs as a local server 
51137  455 

54032  456 
* Improved support for ad hoc overloading of constants (see also 
457 
isarref manual and ~~/src/HOL/ex/Adhoc_Overloading_Examples.thy). 

458 

459 
* Library/Polynomial.thy: 

460 
 Use lifting for primitive definitions. 

461 
 Explicit conversions from and to lists of coefficients, used for 

462 
generated code. 

463 
 Replaced recursion operator poly_rec by fold_coeffs. 

464 
 Prefer preexisting gcd operation for gcd. 

465 
 Fact renames: 

466 
poly_eq_iff ~> poly_eq_poly_eq_iff 

467 
poly_ext ~> poly_eqI 

468 
expand_poly_eq ~> poly_eq_iff 

469 
IMCOMPATIBILITY. 

470 

471 
* New Library/Simps_Case_Conv.thy: Provides commands simps_of_case and 

472 
case_of_simps to convert function definitions between a list of 

473 
equations with patterns on the lhs and a single equation with case 

474 
expressions on the rhs. See also Ex/Simps_Case_Conv_Examples.thy. 

475 

476 
* New Library/FSet.thy: type of finite sets defined as a subtype of 

477 
sets defined by Lifting/Transfer. 

478 

479 
* Discontinued theory src/HOL/Library/Eval_Witness. INCOMPATIBILITY. 

480 

481 
* Consolidation of library theories on product orders: 

482 

483 
Product_Lattice ~> Product_Order  pointwise order on products 

484 
Product_ord ~> Product_Lexorder  lexicographic order on products 

485 

486 
INCOMPATIBILITY. 

487 

53160  488 
* ImperativeHOL: The MREC combinator is considered legacy and no 
489 
longer included by default. INCOMPATIBILITY, use partial_function 

490 
instead, or import theory Legacy_Mrec as a fallback. 

491 

53983  492 
* HOLAlgebra: Discontinued theories ~~/src/HOL/Algebra/abstract and 
493 
~~/src/HOL/Algebra/poly. Existing theories should be based on 

494 
~~/src/HOL/Library/Polynomial instead. The latter provides 

495 
integration with HOL's type classes for rings. INCOMPATIBILITY. 

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

496 

54033  497 
* HOLBNF: 
54032  498 
 Various improvements to BNFbased (co)datatype package, including 
499 
new commands "primrec_new", "primcorec", and 

500 
"datatype_new_compat", as well as documentation. See 

501 
"datatypes.pdf" for details. 

502 
 New "coinduction" method to avoid some boilerplate (compared to 

503 
coinduct). 

504 
 Renamed keywords: 

505 
data ~> datatype_new 

506 
codata ~> codatatype 

507 
bnf_def ~> bnf 

508 
 Renamed many generated theorems, including 

509 
discs ~> disc 

510 
map_comp' ~> map_comp 

511 
map_id' ~> map_id 

512 
sels ~> sel 

513 
set_map' ~> set_map 

514 
sets ~> set 

515 
IMCOMPATIBILITY. 

516 

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

517 

51551  518 
*** ML *** 
519 

53971  520 
* Spec_Check is a Quickcheck tool for Isabelle/ML. The ML function 
521 
"check_property" allows to check specifications of the form "ALL x y 

522 
z. prop x y z". See also ~~/src/Tools/Spec_Check/ with its 

523 
Examples.thy in particular. 

524 

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

525 
* 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

526 
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

527 
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

528 
ML_Compiler.exn_trace. 
84522727f9d3
improved printing of exception trace in Poly/ML 5.5.1;
wenzelm
parents:
53683
diff
changeset

529 

53971  530 
* ML type "theory" is now immutable, without any special treatment of 
531 
drafts or linear updates (which could lead to "stale theory" errors in 

532 
the past). Discontinued obsolete operations like Theory.copy, 

533 
Theory.checkpoint, and the auxiliary type theory_ref. Minor 

534 
INCOMPATIBILITY. 

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

535 

51551  536 
* More uniform naming of goal functions for skipped proofs: 
537 

538 
Skip_Proof.prove ~> Goal.prove_sorry 

539 
Skip_Proof.prove_global ~> Goal.prove_sorry_global 

540 

53971  541 
Minor INCOMPATIBILITY. 
51703
f2e92fc0c8aa
modifiers for classical wrappers operate on Proof.context instead of claset;
wenzelm
parents:
51689
diff
changeset

542 

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

543 
* 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

544 
historic type simpset. Oldstyle declarations like addsimps, 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

545 
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

546 
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

547 
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

548 
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

549 
(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

550 

53971  551 
* Modifiers for classical wrappers (e.g. addWrapper, delWrapper) 
552 
operate on Proof.context instead of claset, for uniformity with addIs, 

553 
addEs, addDs etc. Note that claset_of and put_claset allow to manage 

554 
clasets separately from the context. 

555 

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

556 
* Discontinued obsolete ML antiquotations @{claset} and @{simpset}. 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

557 
INCOMPATIBILITY, use @{context} instead. 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

558 

53971  559 
* Antiquotation @{theory_context A} is similar to @{theory A}, but 
560 
presents the result as initial Proof.context. 

561 

51551  562 

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

563 
*** System *** 
c3d02b3518c2
discontinued "isabelle usedir" option P (remote path);
wenzelm
parents:
51382
diff
changeset

564 

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

565 
* Discontinued obsolete isabelle usedir, mkdir, make  superseded by 
892061142ba6
discontinued obsolete isabelle usedir, mkdir, make;
wenzelm
parents:
51775
diff
changeset

566 
"isabelle build" in Isabelle2013. INCOMPATIBILITY. 
51398
c3d02b3518c2
discontinued "isabelle usedir" option P (remote path);
wenzelm
parents:
51382
diff
changeset

567 

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

568 
* Discontinued obsolete isabelleprocess options f and u (former 
eaf17514aabd
discontinued obsolete isabelleprocess options f and u;
wenzelm
parents:
52053
diff
changeset

569 
administrative aliases of option e). Minor INCOMPATIBILITY. 
eaf17514aabd
discontinued obsolete isabelleprocess options f and u;
wenzelm
parents:
52053
diff
changeset

570 

52550  571 
* Discontinued obsolete isabelle print tool, and PRINT_COMMAND 
572 
settings variable. 

573 

52746  574 
* Discontinued ISABELLE_DOC_FORMAT settings variable and historic 
575 
document formats: dvi.gz, ps, ps.gz  the default document format is 

576 
always pdf. 

52743  577 

52053  578 
* Isabelle settings variable ISABELLE_BUILD_JAVA_OPTIONS allows to 
579 
specify global resources of the JVM process run by isabelle build. 

580 

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

581 
* 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

582 
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

583 

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

584 
* 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

585 
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

586 
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

587 

53971  588 
* Sessions may be organized via 'chapter' specifications in the ROOT 
589 
file, which determines a twolevel hierarchy of browser info. The old 

590 
treelike organization via implicit subsession relation (with its 

591 
tendency towards erratic fluctuation of URLs) has been discontinued. 

592 
The default chapter is called "Unsorted". Potential INCOMPATIBILITY 

593 
for HTML presentation of theories. 

594 

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

595 

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

596 

50993  597 
New in Isabelle2013 (February 2013) 
598 
 

47887  599 

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

600 
*** General *** 
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

601 

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

602 
* 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

603 
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

604 
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

605 
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

606 
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

607 
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

608 
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

609 

49699  610 
* Configuration option show_markup controls direct inlining of markup 
611 
into the printed representation of formal entities  notably type 

612 
and sort constraints. This enables Prover IDE users to retrieve that 

613 
information via tooltips in the output window, for example. 

614 

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

615 
* 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

616 
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

617 

49243  618 
* Old command 'use' command and corresponding keyword 'uses' in the 
619 
theory header are legacy features and will be discontinued soon. 

620 
Tools that load their additional source files may imitate the 

621 
'ML_file' implementation, such that the system can take care of 

622 
dependencies properly. 

623 

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

624 
* Discontinued obsolete method fastsimp / tactic fast_simp_tac, which 
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

625 
is called fastforce / fast_force_tac already since Isabelle20111. 
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

626 

50110  627 
* Updated and extended "isarref" and "implementation" manual, reduced 
628 
remaining material in old "ref" manual. 

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

629 

51050  630 
* Improved support for auxiliary contexts that indicate block structure 
631 
for specifications. Nesting of "context fixes ... context assumes ..." 

49841  632 
and "class ... context ...". 
633 

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

634 
* Attribute "consumes" allows a negative value as well, which is 
50778  635 
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

636 
the target context. This form of declaration is stable when exported 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

637 
from a nested 'context' with additional assumptions. It is the 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

638 
preferred form for definitional packages, notably cases/rules produced 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

639 
in HOL/inductive and HOL/function. 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

640 

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

641 
* More informative error messages for Isar proof commands involving 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

642 
lazy enumerations (method applications etc.). 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

643 

50213  644 
* Refined 'help' command to retrieve outer syntax commands according 
645 
to name patterns (with clickable results). 

646 

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

647 

49968  648 
*** Prover IDE  Isabelle/Scala/jEdit *** 
649 

650 
* Parallel terminal proofs ('by') are enabled by default, likewise 

651 
proofs that are built into packages like 'datatype', 'function'. This 

652 
allows to "run ahead" checking the theory specifications on the 

653 
surface, while the prover is still crunching on internal 

654 
justifications. Unfinished / cancelled proofs are restarted as 

655 
required to complete full proof checking eventually. 

656 

657 
* Improved output panel with tooltips, hyperlinks etc. based on the 

658 
same Rich_Text_Area as regular Isabelle/jEdit buffers. Activation of 

659 
tooltips leads to some window that supports the same recursively, 

660 
which can lead to stacks of tooltips as the semantic document content 

661 
is explored. ESCAPE closes the whole stack, individual windows may be 

662 
closed separately, or detached to become independent jEdit dockables. 

663 

50717  664 
* Improved support for commands that produce graph output: the text 
665 
message contains a clickable area to open a new instance of the graph 

666 
browser on demand. 

667 

49968  668 
* More robust incremental parsing of outer syntax (partial comments, 
669 
malformed symbols). Changing the balance of open/close quotes and 

670 
comment delimiters works more conveniently with unfinished situations 

671 
that frequently occur in user interaction. 

672 

673 
* More efficient painting and improved reactivity when editing large 

674 
files. More scalable management of formal document content. 

675 

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

676 
* 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

677 
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

678 
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

679 
potentially infinite message streams. 
49968  680 

681 
* More plugin options and preferences, based on Isabelle/Scala. The 

682 
jEdit plugin option panel provides access to some Isabelle/Scala 

683 
options, including tuning parameters for editor reactivity and color 

684 
schemes. 

685 

50184  686 
* Dockable window "Symbols" provides some editing support for Isabelle 
687 
symbols. 

688 

51082  689 
* Dockable window "Monitor" shows ML runtime statistics. Note that 
690 
continuous display of the chart slows down the system. 

50701  691 

50183  692 
* Improved editing support for control styles: subscript, superscript, 
693 
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

694 
selections. Cf. keyboard shortcuts C+e DOWN/UP/RIGHT/LEFT. 
0c7b351a6871
added convenience actions isabelle.increasefontsize and isabelle.decreasefontsize;
wenzelm
parents:
50184
diff
changeset

695 

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

696 
* Actions isabelle.increasefontsize and isabelle.decreasefontsize 
0c7b351a6871
added convenience actions isabelle.increasefontsize and isabelle.decreasefontsize;
wenzelm
parents:
50184
diff
changeset

697 
adjust the main text area font size, and its derivatives for output, 
50836  698 
tooltips etc. Cf. keyboard shortcuts CPLUS and CMINUS, which often 
699 
need to be adapted to local keyboard layouts. 

50183  700 

50730  701 
* More reactive completion popup by default: use \t (TAB) instead of 
702 
\n (NEWLINE) to minimize intrusion into regular flow of editing. See 

703 
also "Plugin Options / SideKick / General / Code Completion Options". 

704 

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

705 
* 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

706 
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

707 
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

708 
Isabelle distribution. 
c28753665b8e
documentation for isabelle build_dialog and its implicit use in isabelle jedit;
wenzelm
parents:
50232
diff
changeset

709 

49968  710 
* Uniform Java 7 platform on Linux, Mac OS X, Windows: recent updates 
711 
from Oracle provide better multiplatform experience. This version is 

712 
now bundled exclusively with Isabelle. 

713 

714 

48205  715 
*** Pure *** 
716 

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

717 
* 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

718 
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

719 

50646  720 
* Command 'export_code': relative file names are interpreted 
721 
relatively to master directory of current theory rather than the 

722 
rather arbitrary current working directory. INCOMPATIBILITY. 

48371  723 

48205  724 
* Discontinued obsolete attribute "COMP". Potential INCOMPATIBILITY, 
725 
use regular rule composition via "OF" / "THEN", or explicit proof 

726 
structure instead. Note that Isabelle/ML provides a variety of 

727 
operators like COMP, INCR_COMP, COMP_INCR, which need to be applied 

728 
with some care where this is really required. 

729 

48792  730 
* Command 'typ' supports an additional variant with explicit sort 
731 
constraint, to infer and check the most general type conforming to a 

51063  732 
given sort. Example (in HOL): 
48792  733 

734 
typ "_ * _ * bool * unit" :: finite 

735 

50716  736 
* Command 'locale_deps' visualizes all locales and their relations as 
737 
a Hasse diagram. 

738 

48205  739 

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

740 
*** HOL *** 
44de84112a67
added optimisation for equational premises in Quickcheck; added some Quickcheck examples; NEWS
bulwahn
parents:
47979
diff
changeset

741 

50646  742 
* Sledgehammer: 
743 

744 
 Added MaSh relevance filter based on machinelearning; see the 

745 
Sledgehammer manual for details. 

746 
 Polished Isar proofs generated with "isar_proofs" option. 

747 
 Rationalized type encodings ("type_enc" option). 

50720  748 
 Renamed "kill_provers" subcommand to "kill_all". 
50646  749 
 Renamed options: 
750 
isar_proof ~> isar_proofs 

751 
isar_shrink_factor ~> isar_shrink 

752 
max_relevant ~> max_facts 

753 
relevance_thresholds ~> fact_thresholds 

754 

755 
* Quickcheck: added an optimisation for equality premises. It is 

756 
switched on by default, and can be switched off by setting the 

757 
configuration quickcheck_optimise_equality to false. 

758 

50878  759 
* Quotient: only one quotient can be defined by quotient_type 
760 
INCOMPATIBILITY. 

761 

762 
* Lifting: 

763 
 generation of an abstraction function equation in lift_definition 

764 
 quot_del attribute 

765 
 renamed no_abs_code > no_code (INCOMPATIBILITY.) 

766 

50646  767 
* Simproc "finite_Collect" rewrites set comprehensions into pointfree 
768 
expressions. 

769 

770 
* Preprocessing of the code generator rewrites set comprehensions into 

771 
pointfree expressions. 

772 

773 
* The SMT solver Z3 has now by default a restricted set of directly 

774 
supported features. For the full set of features (div/mod, nonlinear 

775 
arithmetic, datatypes/records) with potential proof reconstruction 

776 
failures, enable the configuration option "z3_with_extensions". Minor 

777 
INCOMPATIBILITY. 

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

778 

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

779 
* Simplified 'typedef' specifications: historical options for implicit 
c13b39542972
simplified 'typedef' specifications: discontinued implicit set definition and alternative name;
wenzelm
parents:
49822
diff
changeset

780 
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

781 
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

782 
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

783 
accordingly. 
c13b39542972
simplified 'typedef' specifications: discontinued implicit set definition and alternative name;
wenzelm
parents:
49822
diff
changeset

784 

50646  785 
* Removed constant "chars"; prefer "Enum.enum" on type "char" 
786 
directly. INCOMPATIBILITY. 

787 

788 
* Moved operation product, sublists and n_lists from theory Enum to 

789 
List. INCOMPATIBILITY. 

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

790 

49739  791 
* Theorem UN_o generalized to SUP_comp. INCOMPATIBILITY. 
792 

49738  793 
* Class "comm_monoid_diff" formalises properties of bounded 
49388  794 
subtraction, with natural numbers and multisets as typical instances. 
795 

50646  796 
* Added combinator "Option.these" with type "'a option set => 'a set". 
797 

798 
* Theory "Transitive_Closure": renamed lemmas 

799 

800 
reflcl_tranclp > reflclp_tranclp 

801 
rtranclp_reflcl > rtranclp_reflclp 

802 

803 
INCOMPATIBILITY. 

804 

805 
* Theory "Rings": renamed lemmas (in class semiring) 

806 

807 
left_distrib ~> distrib_right 

808 
right_distrib ~> distrib_left 

809 

810 
INCOMPATIBILITY. 

811 

812 
* Generalized the definition of limits: 

813 

814 
 Introduced the predicate filterlim (LIM x F. f x :> G) which 

815 
expresses that when the input values x converge to F then the 

816 
output f x converges to G. 

817 

818 
 Added filters for convergence to positive (at_top) and negative 

819 
infinity (at_bot). 

820 

821 
 Moved infinity in the norm (at_infinity) from 

822 
Multivariate_Analysis to Complex_Main. 

823 

824 
 Removed real_tendsto_inf, it is superseded by "LIM x F. f x :> 

825 
at_top". 

826 

827 
INCOMPATIBILITY. 

828 

829 
* Theory "Library/Option_ord" provides instantiation of option type to 

830 
lattice type classes. 

831 

832 
* Theory "Library/Multiset": renamed 

833 

834 
constant fold_mset ~> Multiset.fold 

835 
fact fold_mset_commute ~> fold_mset_comm 

836 

837 
INCOMPATIBILITY. 

838 

839 
* Renamed theory Library/List_Prefix to Library/Sublist, with related 

840 
changes as follows. 

841 

842 
 Renamed constants (and related lemmas) 

49145  843 

844 
prefix ~> prefixeq 

845 
strict_prefix ~> prefix 

846 

50646  847 
 Replaced constant "postfix" by "suffixeq" with swapped argument 
848 
order (i.e., "postfix xs ys" is now "suffixeq ys xs") and dropped 

849 
old infix syntax "xs >>= ys"; use "suffixeq ys xs" instead. 

850 
Renamed lemmas accordingly. 

851 

852 
 Added constant "list_hembeq" for homeomorphic embedding on 

853 
lists. Added abbreviation "sublisteq" for special case 

854 
"list_hembeq (op =)". 

855 

856 
 Theory Library/Sublist no longer provides "order" and "bot" type 

857 
class instances for the prefix order (merely corresponding locale 

858 
interpretations). The type class instances are now in theory 

859 
Library/Prefix_Order. 

860 

861 
 The sublist relation of theory Library/Sublist_Order is now based 

862 
on "Sublist.sublisteq". Renamed lemmas accordingly: 

50516  863 

864 
le_list_append_le_same_iff ~> Sublist.sublisteq_append_le_same_iff 

865 
le_list_append_mono ~> Sublist.list_hembeq_append_mono 

866 
le_list_below_empty ~> Sublist.list_hembeq_Nil, Sublist.list_hembeq_Nil2 

867 
le_list_Cons_EX ~> Sublist.list_hembeq_ConsD 

868 
le_list_drop_Cons2 ~> Sublist.sublisteq_Cons2' 

869 
le_list_drop_Cons_neq ~> Sublist.sublisteq_Cons2_neq 

870 
le_list_drop_Cons ~> Sublist.sublisteq_Cons' 

871 
le_list_drop_many ~> Sublist.sublisteq_drop_many 

872 
le_list_filter_left ~> Sublist.sublisteq_filter_left 

873 
le_list_rev_drop_many ~> Sublist.sublisteq_rev_drop_many 

874 
le_list_rev_take_iff ~> Sublist.sublisteq_append 

875 
le_list_same_length ~> Sublist.sublisteq_same_length 

876 
le_list_take_many_iff ~> Sublist.sublisteq_append' 

49145  877 
less_eq_list.drop ~> less_eq_list_drop 
878 
less_eq_list.induct ~> less_eq_list_induct 

50516  879 
not_le_list_length ~> Sublist.not_sublisteq_length 
49145  880 

50646  881 
INCOMPATIBILITY. 
882 

883 
* New theory Library/Countable_Set. 

884 

885 
* Theory Library/Debug and Library/Parallel provide debugging and 

886 
parallel execution for code generated towards Isabelle/ML. 

887 

888 
* Theory Library/FuncSet: Extended support for Pi and extensional and 

889 
introduce the extensional dependent function space "PiE". Replaced 

890 
extensional_funcset by an abbreviation, and renamed lemmas from 

891 
extensional_funcset to PiE as follows: 

892 

893 
extensional_empty ~> PiE_empty 

894 
extensional_funcset_empty_domain ~> PiE_empty_domain 

895 
extensional_funcset_empty_range ~> PiE_empty_range 

896 
extensional_funcset_arb ~> PiE_arb 

897 
extensional_funcset_mem ~> PiE_mem 

898 
extensional_funcset_extend_domainI ~> PiE_fun_upd 

899 
extensional_funcset_restrict_domain ~> fun_upd_in_PiE 

900 
extensional_funcset_extend_domain_eq ~> PiE_insert_eq 

901 
card_extensional_funcset ~> card_PiE 

902 
finite_extensional_funcset ~> finite_PiE 

903 

904 
INCOMPATIBILITY. 

905 

906 
* Theory Library/FinFun: theory of almost everywhere constant 

907 
functions (supersedes the AFP entry "Code Generation for Functions as 

908 
Data"). 

909 

910 
* Theory Library/Phantom: generic phantom type to make a type 

911 
parameter appear in a constant's type. This alternative to adding 

912 
TYPE('a) as another parameter avoids unnecessary closures in generated 

913 
code. 

914 

915 
* Theory Library/RBT_Impl: efficient construction of redblack trees 

916 
from sorted associative lists. Merging two trees with rbt_union may 

917 
return a structurally different tree than before. Potential 

918 
INCOMPATIBILITY. 

919 

920 
* Theory Library/IArray: immutable arrays with code generation. 

921 

922 
* Theory Library/Finite_Lattice: theory of finite lattices. 

923 

924 
* HOL/Multivariate_Analysis: replaced 

925 

926 
"basis :: 'a::euclidean_space => nat => real" 

927 
"\<Chi>\<Chi> :: (nat => real) => 'a::euclidean_space" 

928 

929 
on euclidean spaces by using the inner product "_ \<bullet> _" with 

930 
vectors from the Basis set: "\<Chi>\<Chi> i. f i" is superseded by 

931 
"SUM i : Basis. f i * r i". 

932 

933 
With this change the following constants are also changed or removed: 

934 

935 
DIM('a) :: nat ~> card (Basis :: 'a set) (is an abbreviation) 

936 
a $$ i ~> inner a i (where i : Basis) 

937 
cart_base i removed 

938 
\<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

939 

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

940 
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

941 

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

942 
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

943 

50646  944 
component_le_norm ~> Basis_le_norm 
945 
euclidean_eq ~> euclidean_eq_iff 

946 
differential_zero_maxmin_component ~> differential_zero_maxmin_cart 

947 
euclidean_simps ~> inner_simps 

948 
independent_basis ~> independent_Basis 

949 
span_basis ~> span_Basis 

950 
in_span_basis ~> in_span_Basis 

951 
norm_bound_component_le ~> norm_boound_Basis_le 

952 
norm_bound_component_lt ~> norm_boound_Basis_lt 

953 
component_le_infnorm ~> Basis_le_infnorm 

954 

955 
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

956 

50141  957 
* HOL/Probability: 
50646  958 

959 
 Added simproc "measurable" to automatically prove measurability. 

960 

961 
 Added induction rules for sigma sets with disjoint union 

962 
(sigma_sets_induct_disjoint) and for Borelmeasurable functions 

963 
(borel_measurable_induct). 

964 

965 
 Added the DaniellKolmogorov theorem (the existence the limit of a 

966 
projective family). 

967 

968 
* HOL/Cardinals: Theories of ordinals and cardinals (supersedes the 

969 
AFP entry "Ordinals_and_Cardinals"). 

970 

971 
* HOL/BNF: New (co)datatype package based on bounded natural functors 

972 
with support for mixed, nested recursion and interesting nonfree 

973 
datatypes. 

48094  974 

50991  975 
* HOL/Finite_Set and Relation: added new set and relation operations 
50878  976 
expressed by Finite_Set.fold. 
977 

978 
* New theory HOL/Library/RBT_Set: implementation of sets by redblack 

979 
trees for the code generator. 

980 

981 
* HOL/Library/RBT and HOL/Library/Mapping have been converted to 

982 
Lifting/Transfer. 

983 
possible INCOMPATIBILITY. 

984 

985 
* HOL/Set: renamed Set.project > Set.filter 

986 
INCOMPATIBILITY. 

987 

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

988 

48206  989 
*** Document preparation *** 
990 

50646  991 
* Dropped legacy antiquotations "term_style" and "thm_style", since 
992 
styles may be given as arguments to "term" and "thm" already. 

993 
Discontinued legacy styles "prem1" .. "prem19". 

994 

995 
* Default LaTeX rendering for \<euro> is now based on eurosym package, 

996 
instead of slightly exotic babel/greek. 

48206  997 

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

998 
* 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

999 
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

1000 
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

1001 

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

1002 
* Simplified custom document/build script, instead of oldstyle 
63ef2f0cf8bb
simplified custom document/build script, instead of oldstyle document/IsaMakefile;
wenzelm
parents:
48616
diff
changeset

1003 
document/IsaMakefile. Minor INCOMPATIBILITY. 
63ef2f0cf8bb
simplified custom document/build script, instead of oldstyle document/IsaMakefile;
wenzelm
parents:
48616
diff
changeset

1004 

48206  1005 

48992  1006 
*** ML *** 
1007 

50646  1008 
* The default limit for maximum number of worker threads is now 8, 
1009 
instead of 4, in correspondence to capabilities of contemporary 

1010 
hardware and Poly/ML runtime system. 

1011 

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

1012 
* Type Seq.results and related operations support embedded error 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1013 
messages within lazy enumerations, and thus allow to provide 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1014 
informative errors in the absence of any usable results. 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1015 

48992  1016 
* Renamed Position.str_of to Position.here to emphasize that this is a 
1017 
formal device to inline positions into message text, but not 

1018 
necessarily printing visible text. 

1019 

1020 

48206  1021 
*** System *** 
1022 

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

1023 
* Advanced support for Isabelle sessions and build management, see 
a82910dd2270
announce advanced support for Isabelle sessions and build management;
wenzelm
parents:
48574
diff
changeset

1024 
"system" manual for the chapter of that name, especially the "isabelle 
51056  1025 
build" tool and its examples. The "isabelle mkroot" tool prepares 
1026 
session root directories for use with "isabelle build", similar to 

1027 
former "isabelle mkdir" for "isabelle usedir". Note that this affects 

1028 
document preparation as well. INCOMPATIBILITY, isabelle usedir / 

48736  1029 
mkdir / make are rendered obsolete. 
1030 

51056  1031 
* Discontinued obsolete Isabelle/build script, it is superseded by the 
1032 
regular isabelle build tool. For example: 

1033 

1034 
isabelle build s b HOL 

1035 

48736  1036 
* Discontinued obsolete "isabelle makeall". 
48585
a82910dd2270
announce advanced support for Isabelle sessions and build management;
wenzelm
parents:
48574
diff
changeset

1037 

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

1038 
* 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

1039 
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

1040 
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

1041 
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

1042 
"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

1043 

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

1044 
* The "isabelle options" tool prints Isabelle system options, as 
ceeea46bdeba
"isabelle options" prints Isabelle system options;
wenzelm
parents:
48683
diff
changeset

1045 
required for "isabelle build", for example. 
ceeea46bdeba
"isabelle options" prints Isabelle system options;
wenzelm
parents:
48683
diff
changeset

1046 

50646  1047 
* The "isabelle logo" tool produces EPS and PDF format simultaneously. 
1048 
Minor INCOMPATIBILITY in commandline options. 

1049 

1050 
* The "isabelle install" tool has now a simpler commandline. Minor 

1051 
INCOMPATIBILITY. 

1052 

48844  1053 
* The "isabelle components" tool helps to resolve addon components 
1054 
that are not bundled, or referenced from a barebones repository 

1055 
version of Isabelle. 

1056 

50646  1057 
* Settings variable ISABELLE_PLATFORM_FAMILY refers to the general 
1058 
platform family: "linux", "macos", "windows". 

1059 

1060 
* The ML system is configured as regular component, and no longer 

1061 
picked up from some surrounding directory. Potential INCOMPATIBILITY 

1062 
for homemade settings. 

50132  1063 

50701  1064 
* Improved ML runtime statistics (heap, threads, future tasks etc.). 
1065 

48206  1066 
* Discontinued support for Poly/ML 5.2.1, which was the last version 
1067 
without exception positions and advanced ML compiler/toplevel 

1068 
configuration. 

1069 

48574  1070 
* Discontinued special treatment of Proof General  no longer guess 
1071 
PROOFGENERAL_HOME based on accidental filesystem layout. Minor 

1072 
INCOMPATIBILITY: provide PROOFGENERAL_HOME and PROOFGENERAL_OPTIONS 

1073 
settings manually, or use a Proof General version that has been 

1074 
bundled as Isabelle component. 

48206  1075 

50182  1076 

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

1077 

47462  1078 
New in Isabelle2012 (May 2012) 
1079 
 

45109  1080 

45593  1081 
*** General *** 
1082 

45614  1083 
* Prover IDE (PIDE) improvements: 
1084 

47585  1085 
 more robust Sledgehammer integration (as before the sledgehammer 
47806  1086 
commandline needs to be typed into the source buffer) 
45614  1087 
 markup for bound variables 
47806  1088 
 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

1089 
 support for userdefined Isar commands within the running session 
47158  1090 
 improved support for Unicode outside original 16bit range 
1091 
e.g. glyph for \<A> (thanks to jEdit 4.5.1) 

45614  1092 

47806  1093 
* Forward declaration of outer syntax keywords within the theory 
1094 
header  minor INCOMPATIBILITY for userdefined commands. Allow new 

1095 
commands to be used in the same theory where defined. 

46485  1096 

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

1097 
* 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

1098 
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

1099 
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

1100 
'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

1101 
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

1102 

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

1103 
context 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1104 
fixes x y z :: 'a 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1105 
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

1106 
begin 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1107 

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

1108 
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

1109 

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

1110 
end 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1111 

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

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

1113 

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

1114 
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

1115 
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

1116 
~~/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

1117 

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

1118 
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

1119 
... begin ... end" block as well. 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1120 

47484  1121 
* Bundled declarations associate attributed fact expressions with a 
1122 
given name in the context. These may be later included in other 

1123 
contexts. This allows to manage context extensions casually, without 

47855  1124 
the logical dependencies of locales and locale interpretation. See 
1125 
commands 'bundle', 'include', 'including' etc. in the isarref manual. 

47484  1126 

47829  1127 
* Commands 'lemmas' and 'theorems' allow local variables using 'for' 
1128 
declaration, and results are standardized before being stored. Thus 

1129 
oldstyle "standard" after instantiation or composition of facts 

1130 
becomes obsolete. Minor INCOMPATIBILITY, due to potential change of 

1131 
indices of schematic variables. 

1132 

1133 
* Rule attributes in local theory declarations (e.g. locale or class) 

1134 
are now statically evaluated: the resulting theorem is stored instead 

1135 
of the original expression. INCOMPATIBILITY in rare situations, where 

1136 
the historic accident of dynamic reevaluation in interpretations 

1137 
etc. was exploited. 

1138 

1139 
* New tutorial "Programming and Proving in Isabelle/HOL" 

1140 
("progprove"). It completely supersedes "A Tutorial Introduction to 

1141 
Structured Isar Proofs" ("isaroverview"), which has been removed. It 

1142 
also supersedes "Isabelle/HOL, A Proof Assistant for HigherOrder 

1143 
Logic" as the recommended beginners tutorial, but does not cover all 

1144 
of the material of that old tutorial. 

1145 

1146 
* Updated and extended reference manuals: "isarref", 

1147 
"implementation", "system"; reduced remaining material in old "ref" 

1148 
manual. 

1149 

1150 

1151 
*** Pure *** 

1152 

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

1153 
* Command 'definition' no longer exports the foundational "raw_def" 
80123a220219
'definition' no longer exports the foundational "raw_def";
wenzelm
parents:
46966
diff
changeset

1154 
into the user context. Minor INCOMPATIBILITY, may use the regular 
80123a220219
'definition' no longer exports the foundational "raw_def";
wenzelm
parents:
46966
diff
changeset

1155 
"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

1156 

47855  1157 
* Attribute "abs_def" turns an equation of the form "f x y == t" into 
1158 
"f == %x y. t", which ensures that "simp" or "unfold" steps always 

1159 
expand it. This also works for objectlogic equality. (Formerly 

1160 
undocumented feature.) 

1161 

47856  1162 
* Sort constraints are now propagated in simultaneous statements, just 
1163 
like type constraints. INCOMPATIBILITY in rare situations, where 

1164 
distinct sorts used to be assigned accidentally. For example: 

1165 

1166 
lemma "P (x::'a::foo)" and "Q (y::'a::bar)"  "now illegal" 

1167 

1168 
lemma "P (x::'a)" and "Q (y::'a::bar)" 

1169 
 "now uniform 'a::bar instead of default sort for first occurrence (!)" 

1170 

1171 
* Rule composition via attribute "OF" (or ML functions OF/MRS) is more 

1172 
tolerant against multiple unifiers, as long as the final result is 

1173 
unique. (As before, rules are composed in canonical righttoleft 

1174 
order to accommodate newly introduced premises.) 

1175 

47806  1176 
* Renamed some inner syntax categories: 
1177 

1178 
num ~> num_token 

1179 
xnum ~> xnum_token 

1180 
xstr ~> str_token 

1181 

1182 
Minor INCOMPATIBILITY. Note that in practice "num_const" or 

1183 
"num_position" etc. are mainly used instead (which also include 

1184 
position information via constraints). 

1185 

47829  1186 
* Simplified configuration options for syntax ambiguity: see 
1187 
"syntax_ambiguity_warning" and "syntax_ambiguity_limit" in isarref 

1188 
manual. Minor INCOMPATIBILITY. 

1189 

47856  1190 
* Discontinued configuration option "syntax_positions": atomic terms 
1191 
in parse trees are always annotated by position constraints. 

45134  1192 

47464  1193 
* Old code generator for SML and its commands 'code_module', 
45383  1194 
'code_library', 'consts_code', 'types_code' have been discontinued. 
46028
9f113cdf3d66
attribute code_abbrev superseedes code_unfold_post
haftmann
parents:
46014
diff
changeset

1195 
Use commands of the generic code generator instead. INCOMPATIBILITY. 
45383  1196 

47464  1197 
* Redundant attribute "code_inline" has been discontinued. Use 
1198 
"code_unfold" instead. INCOMPATIBILITY. 

1199 

1200 
* Dropped attribute "code_unfold_post" in favor of the its dual 

1201 
"code_abbrev", which yields a common pattern in definitions like 

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

1202 

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

1203 
definition [code_abbrev]: "f = t" 
9f113cdf3d66
attribute code_abbrev superseedes code_unfold_post
haftmann
parents:
46014
diff
changeset

1204 

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

1205 
INCOMPATIBILITY. 
45383  1206 

47856  1207 
* Obsolete 'types' command has been discontinued. Use 'type_synonym' 
1208 
instead. INCOMPATIBILITY. 

1209 

1210 
* Discontinued old "prems" fact, which used to refer to the accidental 

1211 
collection of foundational premises in the context (already marked as 

1212 
legacy since Isabelle2011). 

47855  1213 

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

1214 

45122  1215 
*** HOL *** 
1216 

47464  1217 
* Type 'a set is now a proper type constructor (just as before 
1218 
Isabelle2008). Definitions mem_def and Collect_def have disappeared. 

1219 
Nontrivial INCOMPATIBILITY. For developments keeping predicates and 

47855  1220 
sets separate, it is often sufficient to rephrase some set S that has 
1221 
been accidentally used as predicates by "%x. x : S", and some 

1222 
predicate P that has been accidentally used as set by "{x. P x}". 

1223 
Corresponding proofs in a first step should be pruned from any 

1224 
tinkering with former theorems mem_def and Collect_def as far as 

1225 
possible. 

1226 

1227 
For developments which deliberately mix predicates and sets, a 

47464  1228 
planning step is necessary to determine what should become a predicate 
1229 
and what a set. It can be helpful to carry out that step in 

1230 
Isabelle20111 before jumping right into the current release. 

1231 

47855  1232 
* Code generation by default implements sets as container type rather 
1233 
than predicates. INCOMPATIBILITY. 

1234 

1235 
* New type synonym 'a rel = ('a * 'a) set 

1236 

47464  1237 
* The representation of numerals has changed. Datatype "num" 
1238 
represents strictly positive binary numerals, along with functions 

1239 
"numeral :: num => 'a" and "neg_numeral :: num => 'a" to represent 

47855  1240 
positive and negated numeric literals, respectively. See also 
1241 
definitions in ~~/src/HOL/Num.thy. Potential INCOMPATIBILITY, some 

1242 
user theories may require adaptations as follows: 

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

1243 

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

1244 
 Theorems with number_ring or number_semiring constraints: These 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1245 
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

1246 

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

1247 
 Theories defining numeric types: Remove number, number_semiring, 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1248 
and number_ring instances. Defer all theorems about numerals until 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1249 
after classes one and semigroup_add have been instantiated. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1250 

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

1251 
 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

1252 
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

1253 

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

1254 
 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

1255 
automatically support numerals now, so more simp rules and 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1256 
simprocs may now apply within the proof. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1257 

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

1258 
 Definitions and theorems using old constructors Pls/Min/Bit0/Bit1: 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1259 
Redefine using other integer operations. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1260 

47855  1261 
* Transfer: New package intended to generalize the existing 
1262 
"descending" method and related theorem attributes from the Quotient 

1263 
package. (Not all functionality is implemented yet, but future 

1264 
development will focus on Transfer as an eventual replacement for the 

1265 
corresponding parts of the Quotient package.) 

47809  1266 

1267 
 transfer_rule attribute: Maintains a collection of transfer rules, 

1268 
which relate constants at two different types. Transfer rules may 

1269 
relate different type instances of the same polymorphic constant, 

1270 
or they may relate an operation on a raw type to a corresponding 

1271 
operation on an abstract type (quotient or subtype). For example: 

1272 

1273 
((A ===> B) ===> list_all2 A ===> list_all2 B) map map 

1274 
(cr_int ===> cr_int ===> cr_int) (%(x,y) (u,v). (x+u, y+v)) plus_int 

1275 

1276 
 transfer method: Replaces a subgoal on abstract types with an 

1277 
equivalent subgoal on the corresponding raw types. Constants are 

1278 
replaced with corresponding ones according to the transfer rules. 

1279 
Goals are generalized over all free variables by default; this is 

47851  1280 
necessary for variables whose types change, but can be overridden 
47855  1281 
for specific variables with e.g. "transfer fixing: x y z". The 
47809  1282 
variant transfer' method allows replacing a subgoal with one that 
1283 
is logically stronger (rather than equivalent). 

1284 

1285 
 relator_eq attribute: Collects identity laws for relators of 

1286 
various type constructors, e.g. "list_all2 (op =) = (op =)". The 

1287 
transfer method uses these lemmas to infer transfer rules for 

1288 
nonpolymorphic constants on the fly. 

1289 

1290 
 transfer_prover method: Assists with proving a transfer rule for a 

1291 
new constant, provided the constant is defined in terms of other 

1292 
constants that already have transfer rules. It should be applied 

1293 
after unfolding the constant definitions. 

1294 

1295 
 HOL/ex/Transfer_Int_Nat.thy: Example theory demonstrating transfer 

1296 
from type nat to type int. 

1297 

47851  1298 
* Lifting: New package intended to generalize the quotient_definition 
1299 
facility of the Quotient package; designed to work with Transfer. 

47809  1300 

1301 
 lift_definition command: Defines operations on an abstract type in 

1302 
terms of a corresponding operation on a representation 

1303 
type. Example syntax: 

1304 

1305 
lift_definition dlist_insert :: "'a => 'a dlist => 'a dlist" 

1306 
is List.insert 

1307 

1308 
Users must discharge a respectfulness proof obligation when each 

1309 
constant is defined. (For a type copy, i.e. a typedef with UNIV, 

1310 
the proof is discharged automatically.) The obligation is 

1311 
presented in a userfriendly, readable form; a respectfulness 

1312 
theorem in the standard format and a transfer rule are generated 

1313 
by the package. 

1314 

1315 
 Integration with code_abstype: For typedefs (e.g. subtypes 

1316 
corresponding to a datatype invariant, such as dlist), 

1317 
lift_definition generates a code certificate theorem and sets up 

1318 
code generation for each constant. 

1319 

1320 
 setup_lifting command: Sets up the Lifting package to work with a 

1321 
userdefined type. The user must provide either a quotient theorem 

1322 
or a type_definition theorem. The package configures transfer 

1323 
rules for equality and quantifiers on the type, and sets up the 

1324 
lift_definition command to work with the type. 

1325 

1326 
 Usage examples: See Quotient_Examples/Lift_DList.thy, 

47851  1327 
Quotient_Examples/Lift_RBT.thy, Quotient_Examples/Lift_FSet.thy, 
1328 
Word/Word.thy and Library/Float.thy. 

47809  1329 

1330 
* Quotient package: 

1331 

1332 
 The 'quotient_type' command now supports a 'morphisms' option with 

1333 
rep and abs functions, similar to typedef. 

1334 

1335 
 'quotient_type' sets up new types to work with the Lifting and 

1336 
Transfer packages, as with 'setup_lifting'. 

1337 

1338 
 The 'quotient_definition' command now requires the user to prove a 

1339 
respectfulness property at the point where the constant is 

1340 
defined, similar to lift_definition; INCOMPATIBILITY. 

1341 

1342 
 Renamed predicate 'Quotient' to 'Quotient3', and renamed theorems 

1343 
accordingly, INCOMPATIBILITY. 

1344 

1345 
* New diagnostic command 'find_unused_assms' to find potentially 

1346 
superfluous assumptions in theorems using Quickcheck. 

1347 

1348 
* Quickcheck: 

1349 

1350 
 Quickcheck returns variable assignments as counterexamples, which 

1351 
allows to reveal the underspecification of functions under test. 

1352 
For example, refuting "hd xs = x", it presents the variable 

1353 
assignment xs = [] and x = a1 as a counterexample, assuming that 

1354 
any property is false whenever "hd []" occurs in it. 

1355 

1356 
These counterexample are marked as potentially spurious, as 

1357 
Quickcheck also returns "xs = []" as a counterexample to the 

1358 
obvious theorem "hd xs = hd xs". 

1359 

1360 
After finding a potentially spurious counterexample, Quickcheck 

1361 
continues searching for genuine ones. 

1362 

1363 
By default, Quickcheck shows potentially spurious and genuine 

1364 
counterexamples. The option "genuine_only" sets quickcheck to only 

1365 
show genuine counterexamples. 

1366 

1367 
 The command 'quickcheck_generator' creates random and exhaustive 

1368 
value generators for a given type and operations. 

1369 

1370 
It generates values by using the operations as if they were 

1371 
constructors of that type. 

1372 

1373 
 Support for multisets. 

1374 

1375 
 Added "use_subtype" options. 

1376 

1377 
 Added "quickcheck_locale" configuration to specify how to process 

1378 
conjectures in a locale context. 

1379 

47855  1380 
* Nitpick: Fixed infinite loop caused by the 'peephole_optim' option 
1381 
and affecting 'rat' and 'real'. 

47809  1382 

1383 
* Sledgehammer: 

1384 
 Integrated more tightly with SPASS, as described in the ITP 2012 

1385 
paper "More SPASS with Isabelle". 

1386 
 Made it try "smt" as a fallback if "metis" fails or times out. 

1387 
 Added support for the following provers: AltErgo (via Why3 and 

1388 
TFF1), iProver, iProverEq. 

1389 
 Sped up the minimizer. 

1390 
 Added "lam_trans", "uncurry_aliases", and "minimize" options. 

1391 
 Renamed "slicing" ("no_slicing") option to "slice" ("dont_slice"). 

1392 
 Renamed "sound" option to "strict". 

1393 

47855  1394 
* Metis: Added possibility to specify lambda translations scheme as a 
1395 
parenthesized argument (e.g., "by (metis (lifting) ...)"). 

1396 

1397 
* SMT: Renamed "smt_fixed" option to "smt_read_only_certificates". 

1398 

1399 
* Command 'try0': Renamed from 'try_methods'. INCOMPATIBILITY. 

47809  1400 

47856  1401 
* New "case_product" attribute to generate a case rule doing multiple 
1402 
case distinctions at the same time. E.g. 

1403 

1404 
list.exhaust [case_product nat.exhaust] 

1405 

1406 
produces a rule which can be used to perform case distinction on both 

1407 
a list and a nat. 

1408 

47809  1409 
* New "eventually_elim" method as a generalized variant of the 
47855  1410 
eventually_elim* rules. Supports structured proofs. 
1411 

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

1412 
* Typedef with implicit set definition is considered legacy. Use 
5f9ce06f281e
typedef with implicit set definition is considered legacy;
wenzelm
parents:
47694
diff
changeset

1413 
"typedef (open)" form instead, which will eventually become the 
5f9ce06f281e
typedef with implicit set definition is considered legacy;
wenzelm
parents:
47694
diff
changeset

1414 
default. 
5f9ce06f281e
typedef with implicit set definition is considered legacy;
wenzelm
parents:
47694
diff
changeset

1415 

47856  1416 
* Record: code generation can be switched off manually with 
1417 

1418 
declare [[record_coden = false]]  "default true" 

1419 

1420 
* Datatype: type parameters allow explicit sort constraints. 

1421 

47855  1422 
* Concrete syntax for case expressions includes constraints for source 
1246d847b8c1
some reordering;
wenze 