author  wenzelm 
Wed, 20 Nov 2013 17:00:49 +0100  
changeset 54533  05738b7d8191 
parent 54502  e7c9a14632d0 
child 54587  19cd731eb745 
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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*** HOL *** 
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14 

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

17 

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

20 
INCOMPATIBILITY. 

21 

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

23 
nat_even_iff_2_dvd, int_even_iff_2_dvd ~> even_iff_2_dvd 

24 
even_zero_(natint) ~> even_zero 

25 
INCOMPATIBILITY. 

54055  26 

54489
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eliminiated neg_numeral in favour of  (numeral _)
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* Abolished neg_numeral. 
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eliminiated neg_numeral in favour of  (numeral _)
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28 
* Canonical representation for minus one is " 1". 
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29 
* Canonical representation for other negative numbers is " (numeral _)". 
54502  30 
* When devising rule sets for number calculation, consider the 
54489
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31 
following cases: 0, 1, numeral _,  1,  numeral _. 
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* Syntax for negative numerals is mere input syntax. 
03ff4d1e6784
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INCOMPATBILITY. 
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34 

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* Elimination of fact duplicates: 
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equals_zero_I ~> minus_unique 
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37 
diff_eq_0_iff_eq ~> right_minus_eq 
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38 
INCOMPATIBILITY. 
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39 

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40 
* Fact name consolidation: 
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41 
diff_def, diff_minus, ab_diff_minus ~> diff_conv_add_uminus 
54250  42 
minus_le_self_iff ~> neg_less_eq_nonneg 
43 
le_minus_self_iff ~> less_eq_neg_nonpos 

44 
neg_less_nonneg ~> neg_less_pos 

45 
less_minus_self_iff ~> less_neg_neg [simp] 

54230
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INCOMPATIBILITY. 
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47 

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* More simplification rules on unary and binary minus: 
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49 
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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52 
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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54 
have been taken away from fact collections algebra_simps and 
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55 
field_simps. INCOMPATIBILITY. 
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56 

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57 
To restore proofs, the following patterns are helpful: 
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58 

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59 
a) Arbitrary failing proof not involving "diff_def": 
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Consider simplification with algebra_simps or field_simps. 
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61 

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62 
b) Lifting rules from addition to subtraction: 
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Try with "using <rule for addition> of [… " _" …]" by simp". 
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65 
c) Simplification with "diff_def": just drop "diff_def". 
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66 
Consider simplification with algebra_simps or field_simps; 
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67 
or the brute way with 
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"simp add: diff_conv_add_uminus del: add_uminus_conv_diff". 
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69 

54264  70 
* SUP and INF generalized to conditionally_complete_lattice 
71 

72 
* Theory Lubs moved HOL image to HOLLibrary. It is replaced by 

73 
Conditionally_Complete_Lattices. INCOMPATIBILITY. 

74 

75 
* Introduce bdd_above and bdd_below in Conditionally_Complete_Lattices, use them 

76 
instead of explicitly stating boundedness of sets. 

77 

78 

54449
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*** ML *** 
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* Toplevel function "use" refers to raw ML bootstrap environment, 
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82 
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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formal context. 
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86 

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87 

53971  88 
New in Isabelle20131 (November 2013) 
89 
 

50994  90 

51293
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*** General *** 
05b1bbae748d
discontinued obsolete 'uses' within theory header;
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92 

53971  93 
* Discontinued obsolete 'uses' within theory header. Note that 
94 
commands like 'ML_file' work without separate declaration of file 

95 
dependencies. Minor INCOMPATIBILITY. 

96 

97 
* Discontinued redundant 'use' command, which was superseded by 

98 
'ML_file' in Isabelle2013. Minor INCOMPATIBILITY. 

99 

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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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105 
Isabelle/HOL. INCOMPATIBILITY, use "isabelle update_sub_sup" to 
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106 
standardize symbols as a starting point for further manual cleanup. 
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107 
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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110 

53021
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* Document antiquotations: term style "isub" has been renamed to 
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112 
"sub". Minor INCOMPATIBILITY. 
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113 

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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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116 
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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118 
quick_and_dirty, instead of historical poking into mutable reference. 
52059  119 

52060  120 
* Renamed command 'print_configs' to 'print_options'. Minor 
121 
INCOMPATIBILITY. 

122 

52430  123 
* Proper diagnostic command 'print_state'. Old 'pr' (with its 
124 
implicit change of some global references) is retained for now as 

125 
control command, e.g. for ProofGeneral 3.7.x. 

126 

52549  127 
* Discontinued 'print_drafts' command with its oldfashioned PS output 
128 
and Unix commandline print spooling. Minor INCOMPATIBILITY: use 

129 
'display_drafts' instead and print via the regular document viewer. 

130 

53971  131 
* Updated and extended "isarref" and "implementation" manual, 
132 
eliminated old "ref" manual. 

133 

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51533  135 
*** Prover IDE  Isabelle/Scala/jEdit *** 
136 

53971  137 
* New manual "jedit" for Isabelle/jEdit, see isabelle doc or 
53852  138 
Documentation panel. 
139 

53971  140 
* Dockable window "Documentation" provides access to Isabelle 
141 
documentation. 

52646  142 

52949  143 
* Dockable window "Find" provides query operations for formal entities 
144 
(GUI frontend to 'find_theorems' command). 

145 

53050  146 
* Dockable window "Sledgehammer" manages asynchronous / parallel 
147 
sledgehammer runs over existing document sources, independently of 

148 
normal editing and checking process. 

149 

51533  150 
* Dockable window "Timing" provides an overview of relevant command 
54332  151 
timing information, depending on option jedit_timing_threshold. The 
152 
same timing information is shown in the extended tooltip of the 

153 
command keyword, when hovering the mouse over it while the CONTROL or 

154 
COMMAND modifier is pressed. 

51533  155 

53971  156 
* Improved dockable window "Theories": Continuous checking of proof 
157 
document (visible and required parts) may be controlled explicitly, 

158 
using check box or shortcut "C+e ENTER". Individual theory nodes may 

159 
be marked explicitly as required and checked in full, using check box 

160 
or shortcut "C+e SPACE". 

161 

54305  162 
* Improved completion mechanism, which is now managed by the 
163 
Isabelle/jEdit plugin instead of SideKick. Refined table of Isabelle 

164 
symbol abbreviations (see $ISABELLE_HOME/etc/symbols). 

165 

54319  166 
* Standard jEdit keyboard shortcut C+b completeword is remapped to 
167 
isabelle.complete for explicit completion in Isabelle sources. 

168 
INCOMPATIBILITY wrt. jEdit defaults, may have to invent new shortcuts 

169 
to resolve conflict. 

170 

54305  171 
* Improved support of various "minor modes" for Isabelle NEWS, 
172 
options, session ROOT etc., with completion and SideKick tree view. 

173 

53971  174 
* Strictly monotonic document update, without premature cancellation of 
175 
running transactions that are still needed: avoid reset/restart of 

176 
such command executions while editing. 

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53971  178 
* Support for asynchronous print functions, as overlay to existing 
179 
document content. 

180 

181 
* Support for automatic tools in HOL, which try to prove or disprove 

182 
toplevel theorem statements. 

183 

184 
* 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  188 

189 
* File specifications in jEdit (e.g. file browser) may refer to 

54351  190 
$ISABELLE_HOME and $ISABELLE_HOME_USER on all platforms. Discontinued 
191 
obsolete $ISABELLE_HOME_WINDOWS variable. 

53971  192 

193 
* Improved support for Linux lookandfeel "GTK+", see also "Utilities 

194 
/ Global Options / Appearance". 

195 

196 
* Improved support of native Mac OS X functionality via "MacOSX" 

197 
plugin, which is now enabled by default. 

198 

51533  199 

51313  200 
*** Pure *** 
201 

54049  202 
* Commands 'interpretation' and 'sublocale' are now targetsensitive. 
203 
In particular, 'interpretation' allows for nonpersistent 

204 
interpretation within "context ... begin ... end" blocks offering a 

205 
lightweight alternative to 'sublocale'. See "isarref" manual for 

206 
details. 

51747  207 

51565  208 
* Improved locales diagnostic command 'print_dependencies'. 
209 

51313  210 
* Discontinued obsolete 'axioms' command, which has been marked as 
211 
legacy since Isabelle20092. INCOMPATIBILITY, use 'axiomatization' 

212 
instead, while observing its uniform scope for polymorphism. 

213 

51316
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* Discontinued empty name bindings in 'axiomatization'. 
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INCOMPATIBILITY. 
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216 

53971  217 
* System option "proofs" has been discontinued. Instead the global 
218 
state of Proofterm.proofs is persistently compiled into logic images 

219 
as required, notably HOLProofs. Users no longer need to change 

220 
Proofterm.proofs dynamically. Minor INCOMPATIBILITY. 

221 

222 
* Syntax translation functions (print_translation etc.) always depend 

223 
on Proof.context. Discontinued former "(advanced)" option  this is 

224 
now the default. Minor INCOMPATIBILITY. 

225 

226 
* Former global reference trace_unify_fail is now available as 

227 
configuration option "unify_trace_failure" (global context only). 

228 

52463  229 
* SELECT_GOAL now retains the syntactic context of the overall goal 
230 
state (schematic variables etc.). Potential INCOMPATIBILITY in rare 

231 
situations. 

232 

51313  233 

51002
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*** HOL *** 
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235 

54032  236 
* Stronger precedence of syntax for big intersection and union on 
237 
sets, in accordance with corresponding lattice operations. 

238 
INCOMPATIBILITY. 

239 

240 
* Notation "{p:A. P}" now allows tuple patterns as well. 

241 

242 
* Nested case expressions are now translated in a separate check phase 

243 
rather than during parsing. The data for case combinators is separated 

244 
from the datatype package. The declaration attribute 

245 
"case_translation" can be used to register new case combinators: 

246 

247 
declare [[case_translation case_combinator constructor1 ... constructorN]] 

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249 
* Code generator: 
53160  250 
 'code_printing' unifies 'code_const' / 'code_type' / 'code_class' / 
251 
'code_instance'. 

252 
 'code_identifier' declares name hints for arbitrary identifiers in 

253 
generated code, subsuming 'code_modulename'. 

53983  254 

255 
See the isarref manual for syntax diagrams, and the HOL theories for 

256 
examples. 

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257 

54032  258 
* Attibute 'code': 'code' now declares concrete and abstract code 
259 
equations uniformly. Use explicit 'code equation' and 'code abstract' 

260 
to distinguish both when desired. 

261 

262 
* Discontinued theories Code_Integer and Efficient_Nat by a more 

263 
finegrain stack of theories Code_Target_Int, Code_Binary_Nat, 

264 
Code_Target_Nat and Code_Target_Numeral. See the tutorial on code 

265 
generation for details. INCOMPATIBILITY. 

266 

267 
* Numeric types are mapped by default to target language numerals: 

268 
natural (replaces former code_numeral) and integer (replaces former 

269 
code_int). Conversions are available as integer_of_natural / 

270 
natural_of_integer / integer_of_nat / nat_of_integer (in HOL) and 

271 
Code_Numeral.integer_of_natural / Code_Numeral.natural_of_integer (in 

272 
ML). INCOMPATIBILITY. 

273 

274 
* Function package: For mutually recursive functions f and g, separate 

275 
cases rules f.cases and g.cases are generated instead of unusable 

276 
f_g.cases which exposed internal sum types. Potential INCOMPATIBILITY, 

277 
in the case that the unusable rule was used nevertheless. 

278 

279 
* Function package: For each function f, new rules f.elims are 

280 
generated, which eliminate equalities of the form "f x = t". 

281 

282 
* New command 'fun_cases' derives adhoc elimination rules for 

283 
function equations as simplified instances of f.elims, analogous to 

284 
inductive_cases. See ~~/src/HOL/ex/Fundefs.thy for some examples. 

53307  285 

54021  286 
* Lifting: 
287 
 parametrized correspondence relations are now supported: 

54378  288 
+ parametricity theorems for the raw term can be specified in 
54021  289 
the command lift_definition, which allow us to generate stronger 
290 
transfer rules 

291 
+ setup_lifting generates stronger transfer rules if parametric 

292 
correspondence relation can be generated 

293 
+ various new properties of the relator must be specified to support 

294 
parametricity 

295 
+ parametricity theorem for the Quotient relation can be specified 

296 
 setup_lifting generates domain rules for the Transfer package 

297 
 stronger reflexivity prover of respectfulness theorems for type 

298 
copies 

299 
 ===> and > are now local. The symbols can be introduced 

300 
by interpreting the locale lifting_syntax (typically in an 

301 
anonymous context) 

54378  302 
 Lifting/Transfer relevant parts of Library/Quotient_* are now in 
54021  303 
Main. Potential INCOMPATIBILITY 
304 
 new commands for restoring and deleting Lifting/Transfer context: 

305 
lifting_forget, lifting_update 

54378  306 
 the command print_quotmaps was renamed to print_quot_maps. 
54021  307 
INCOMPATIBILITY 
308 

309 
* Transfer: 

54378  310 
 better support for domains in Transfer: replace Domainp T 
54021  311 
by the actual invariant in a transferred goal 
312 
 transfer rules can have as assumptions other transfer rules 

313 
 Experimental support for transferring from the raw level to the 

314 
abstract level: Transfer.transferred attribute 

315 
 Attribute version of the transfer method: untransferred attribute 

316 

52286  317 
* Reification and reflection: 
53160  318 
 Reification is now directly available in HOLMain in structure 
319 
"Reification". 

320 
 Reflection now handles multiple lists with variables also. 

321 
 The whole reflection stack has been decomposed into conversions. 

52286  322 
INCOMPATIBILITY. 
323 

51489  324 
* Revised devices for recursive definitions over finite sets: 
325 
 Only one fundamental fold combinator on finite set remains: 

326 
Finite_Set.fold :: ('a => 'b => 'b) => 'b => 'a set => 'b 

327 
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

328 
 Locales ("mini packages") for fundamental definitions with 
51489  329 
Finite_Set.fold: folding, folding_idem. 
330 
 Locales comm_monoid_set, semilattice_order_set and 

331 
semilattice_neutr_order_set for big operators on sets. 

332 
See theory Big_Operators for canonical examples. 

333 
Note that foundational constants comm_monoid_set.F and 

334 
semilattice_set.F correspond to former combinators fold_image 

335 
and fold1 respectively. These are now gone. You may use 

51490  336 
those foundational constants as substitutes, but it is 
53983  337 
preferable to interpret the above locales accordingly. 
51489  338 
 Dropped class ab_semigroup_idem_mult (special case of lattice, 
339 
no longer needed in connection with Finite_Set.fold etc.) 

340 
 Fact renames: 

341 
card.union_inter ~> card_Un_Int [symmetric] 

342 
card.union_disjoint ~> card_Un_disjoint 

343 
INCOMPATIBILITY. 

344 

51487  345 
* Locale hierarchy for abstract orderings and (semi)lattices. 
346 

53526  347 
* Complete_Partial_Order.admissible is defined outside the type class 
348 
ccpo, but with mandatory prefix ccpo. Admissibility theorems lose the 

349 
class predicate assumption or sort constraint when possible. 

53362  350 
INCOMPATIBILITY. 
351 

53160  352 
* Introduce type class "conditionally_complete_lattice": Like a 
353 
complete lattice but does not assume the existence of the top and 

354 
bottom elements. Allows to generalize some lemmas about reals and 

355 
extended reals. Removed SupInf and replaced it by the instantiation 

356 
of conditionally_complete_lattice for real. Renamed lemmas about 

357 
conditionallycomplete lattice from Sup_... to cSup_... and from 

358 
Inf_... to cInf_... to avoid hidding of similar complete lattice 

359 
lemmas. 

360 

361 
* Introduce type class linear_continuum as combination of 

362 
conditionallycomplete lattices and inner dense linorders which have 

363 
more than one element. INCOMPATIBILITY. 

364 

53983  365 
* Introduced type classes order_top and order_bot. The old classes top 
366 
and bot only contain the syntax without assumptions. INCOMPATIBILITY: 

367 
Rename bot > order_bot, top > order_top 

53683  368 

53160  369 
* Introduce type classes "no_top" and "no_bot" for orderings without 
370 
top and bottom elements. 

51732  371 

372 
* Split dense_linorder into inner_dense_order and no_top, no_bot. 

373 

374 
* Complex_Main: Unify and move various concepts from 

53160  375 
HOLMultivariate_Analysis to HOLComplex_Main. 
51732  376 

53983  377 
 Introduce type class (lin)order_topology and 
378 
linear_continuum_topology. Allows to generalize theorems about 

379 
limits and order. Instances are reals and extended reals. 

51732  380 

381 
 continuous and continuos_on from Multivariate_Analysis: 

53983  382 
"continuous" is the continuity of a function at a filter. "isCont" 
383 
is now an abbrevitation: "isCont x f == continuous (at _) f". 

384 

385 
Generalized continuity lemmas from isCont to continuous on an 

386 
arbitrary filter. 

387 

388 
 compact from Multivariate_Analysis. Use Bolzano's lemma to prove 

389 
compactness of closed intervals on reals. Continuous functions 

390 
attain infimum and supremum on compact sets. The inverse of a 

391 
continuous function is continuous, when the function is continuous 

392 
on a compact set. 

51732  393 

394 
 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

395 
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

396 
linear_continuum_topology). 
51732  397 

398 
 first_countable_topology from Multivariate_Analysis. Is used to 

53983  399 
show equivalence of properties on the neighbourhood filter of x and 
400 
on all sequences converging to x. 

401 

402 
 FDERIV: Definition of has_derivative moved to Deriv.thy. Moved 

403 
theorems from Library/FDERIV.thy to Deriv.thy and base the 

404 
definition of DERIV on FDERIV. Add variants of DERIV and FDERIV 

405 
which are restricted to sets, i.e. to represent derivatives from 

406 
left or right. 

51732  407 

408 
 Removed the withinfilter. It is replaced by the principal filter: 

409 

410 
F within X = inf F (principal X) 

411 

412 
 Introduce "at x within U" as a single constant, "at x" is now an 

413 
abbreviation for "at x within UNIV" 

414 

53983  415 
 Introduce named theorem collections tendsto_intros, 
416 
continuous_intros, continuous_on_intros and FDERIV_intros. Theorems 

417 
in tendsto_intros (or FDERIV_intros) are also available as 

418 
tendsto_eq_intros (or FDERIV_eq_intros) where the righthand side 

419 
is replaced by a congruence rule. This allows to apply them as 

420 
intro rules and then proving equivalence by the simplifier. 

51732  421 

422 
 Restructured theories in HOLComplex_Main: 

423 

424 
+ Moved RealDef and RComplete into Real 

425 

426 
+ Introduced Topological_Spaces and moved theorems about 

427 
topological spaces, filters, limits and continuity to it 

428 

429 
+ Renamed RealVector to Real_Vector_Spaces 

430 

53983  431 
+ Split Lim, SEQ, Series into Topological_Spaces, 
432 
Real_Vector_Spaces, and Limits 

51732  433 

434 
+ Moved Ln and Log to Transcendental 

435 

436 
+ Moved theorems about continuity from Deriv to Topological_Spaces 

437 

438 
 Remove various auxiliary lemmas. 

439 

440 
INCOMPATIBILITY. 

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

441 

53738  442 
* Nitpick: 
53803  443 
 Added option "spy" 
53738  444 
 Reduce incidence of "too high arity" errors 
445 

51137  446 
* Sledgehammer: 
447 
 Renamed option: 

448 
isar_shrink ~> isar_compress 

53738  449 
INCOMPATIBILITY. 
53801  450 
 Added options "isar_try0", "spy" 
53728  451 
 Better support for "isar_proofs" 
53766  452 
 MaSh has been finedtuned and now runs as a local server 
51137  453 

54032  454 
* Improved support for ad hoc overloading of constants (see also 
455 
isarref manual and ~~/src/HOL/ex/Adhoc_Overloading_Examples.thy). 

456 

457 
* Library/Polynomial.thy: 

458 
 Use lifting for primitive definitions. 

459 
 Explicit conversions from and to lists of coefficients, used for 

460 
generated code. 

461 
 Replaced recursion operator poly_rec by fold_coeffs. 

462 
 Prefer preexisting gcd operation for gcd. 

463 
 Fact renames: 

464 
poly_eq_iff ~> poly_eq_poly_eq_iff 

465 
poly_ext ~> poly_eqI 

466 
expand_poly_eq ~> poly_eq_iff 

467 
IMCOMPATIBILITY. 

468 

469 
* New Library/Simps_Case_Conv.thy: Provides commands simps_of_case and 

470 
case_of_simps to convert function definitions between a list of 

471 
equations with patterns on the lhs and a single equation with case 

472 
expressions on the rhs. See also Ex/Simps_Case_Conv_Examples.thy. 

473 

474 
* New Library/FSet.thy: type of finite sets defined as a subtype of 

475 
sets defined by Lifting/Transfer. 

476 

477 
* Discontinued theory src/HOL/Library/Eval_Witness. INCOMPATIBILITY. 

478 

479 
* Consolidation of library theories on product orders: 

480 

481 
Product_Lattice ~> Product_Order  pointwise order on products 

482 
Product_ord ~> Product_Lexorder  lexicographic order on products 

483 

484 
INCOMPATIBILITY. 

485 

53160  486 
* ImperativeHOL: The MREC combinator is considered legacy and no 
487 
longer included by default. INCOMPATIBILITY, use partial_function 

488 
instead, or import theory Legacy_Mrec as a fallback. 

489 

53983  490 
* HOLAlgebra: Discontinued theories ~~/src/HOL/Algebra/abstract and 
491 
~~/src/HOL/Algebra/poly. Existing theories should be based on 

492 
~~/src/HOL/Library/Polynomial instead. The latter provides 

493 
integration with HOL's type classes for rings. INCOMPATIBILITY. 

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

494 

54033  495 
* HOLBNF: 
54032  496 
 Various improvements to BNFbased (co)datatype package, including 
497 
new commands "primrec_new", "primcorec", and 

498 
"datatype_new_compat", as well as documentation. See 

499 
"datatypes.pdf" for details. 

500 
 New "coinduction" method to avoid some boilerplate (compared to 

501 
coinduct). 

502 
 Renamed keywords: 

503 
data ~> datatype_new 

504 
codata ~> codatatype 

505 
bnf_def ~> bnf 

506 
 Renamed many generated theorems, including 

507 
discs ~> disc 

508 
map_comp' ~> map_comp 

509 
map_id' ~> map_id 

510 
sels ~> sel 

511 
set_map' ~> set_map 

512 
sets ~> set 

513 
IMCOMPATIBILITY. 

514 

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

515 

51551  516 
*** ML *** 
517 

53971  518 
* Spec_Check is a Quickcheck tool for Isabelle/ML. The ML function 
519 
"check_property" allows to check specifications of the form "ALL x y 

520 
z. prop x y z". See also ~~/src/Tools/Spec_Check/ with its 

521 
Examples.thy in particular. 

522 

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

523 
* 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

524 
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

525 
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

526 
ML_Compiler.exn_trace. 
84522727f9d3
improved printing of exception trace in Poly/ML 5.5.1;
wenzelm
parents:
53683
diff
changeset

527 

53971  528 
* ML type "theory" is now immutable, without any special treatment of 
529 
drafts or linear updates (which could lead to "stale theory" errors in 

530 
the past). Discontinued obsolete operations like Theory.copy, 

531 
Theory.checkpoint, and the auxiliary type theory_ref. Minor 

532 
INCOMPATIBILITY. 

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

533 

51551  534 
* More uniform naming of goal functions for skipped proofs: 
535 

536 
Skip_Proof.prove ~> Goal.prove_sorry 

537 
Skip_Proof.prove_global ~> Goal.prove_sorry_global 

538 

53971  539 
Minor INCOMPATIBILITY. 
51703
f2e92fc0c8aa
modifiers for classical wrappers operate on Proof.context instead of claset;
wenzelm
parents:
51689
diff
changeset

540 

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

541 
* 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

542 
historic type simpset. Oldstyle declarations like addsimps, 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

543 
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

544 
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

545 
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

546 
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

547 
(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

548 

53971  549 
* Modifiers for classical wrappers (e.g. addWrapper, delWrapper) 
550 
operate on Proof.context instead of claset, for uniformity with addIs, 

551 
addEs, addDs etc. Note that claset_of and put_claset allow to manage 

552 
clasets separately from the context. 

553 

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

554 
* Discontinued obsolete ML antiquotations @{claset} and @{simpset}. 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

555 
INCOMPATIBILITY, use @{context} instead. 
9e7d1c139569
simplifier uses proper Proof.context instead of historic type simpset;
wenzelm
parents:
51703
diff
changeset

556 

53971  557 
* Antiquotation @{theory_context A} is similar to @{theory A}, but 
558 
presents the result as initial Proof.context. 

559 

51551  560 

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

561 
*** System *** 
c3d02b3518c2
discontinued "isabelle usedir" option P (remote path);
wenzelm
parents:
51382
diff
changeset

562 

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

563 
* Discontinued obsolete isabelle usedir, mkdir, make  superseded by 
892061142ba6
discontinued obsolete isabelle usedir, mkdir, make;
wenzelm
parents:
51775
diff
changeset

564 
"isabelle build" in Isabelle2013. INCOMPATIBILITY. 
51398
c3d02b3518c2
discontinued "isabelle usedir" option P (remote path);
wenzelm
parents:
51382
diff
changeset

565 

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

566 
* Discontinued obsolete isabelleprocess options f and u (former 
eaf17514aabd
discontinued obsolete isabelleprocess options f and u;
wenzelm
parents:
52053
diff
changeset

567 
administrative aliases of option e). Minor INCOMPATIBILITY. 
eaf17514aabd
discontinued obsolete isabelleprocess options f and u;
wenzelm
parents:
52053
diff
changeset

568 

52550  569 
* Discontinued obsolete isabelle print tool, and PRINT_COMMAND 
570 
settings variable. 

571 

52746  572 
* Discontinued ISABELLE_DOC_FORMAT settings variable and historic 
573 
document formats: dvi.gz, ps, ps.gz  the default document format is 

574 
always pdf. 

52743  575 

52053  576 
* Isabelle settings variable ISABELLE_BUILD_JAVA_OPTIONS allows to 
577 
specify global resources of the JVM process run by isabelle build. 

578 

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

579 
* 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

580 
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

581 

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

582 
* 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

583 
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

584 
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

585 

53971  586 
* Sessions may be organized via 'chapter' specifications in the ROOT 
587 
file, which determines a twolevel hierarchy of browser info. The old 

588 
treelike organization via implicit subsession relation (with its 

589 
tendency towards erratic fluctuation of URLs) has been discontinued. 

590 
The default chapter is called "Unsorted". Potential INCOMPATIBILITY 

591 
for HTML presentation of theories. 

592 

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

593 

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

594 

50993  595 
New in Isabelle2013 (February 2013) 
596 
 

47887  597 

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

598 
*** General *** 
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

599 

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

600 
* 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

601 
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

602 
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

603 
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

604 
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

605 
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

606 
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

607 

49699  608 
* Configuration option show_markup controls direct inlining of markup 
609 
into the printed representation of formal entities  notably type 

610 
and sort constraints. This enables Prover IDE users to retrieve that 

611 
information via tooltips in the output window, for example. 

612 

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

613 
* 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

614 
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

615 

49243  616 
* Old command 'use' command and corresponding keyword 'uses' in the 
617 
theory header are legacy features and will be discontinued soon. 

618 
Tools that load their additional source files may imitate the 

619 
'ML_file' implementation, such that the system can take care of 

620 
dependencies properly. 

621 

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

622 
* Discontinued obsolete method fastsimp / tactic fast_simp_tac, which 
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

623 
is called fastforce / fast_force_tac already since Isabelle20111. 
c422128d3889
discontinued obsolete method fastsimp / tactic fast_simp_tac;
wenzelm
parents:
47958
diff
changeset

624 

50110  625 
* Updated and extended "isarref" and "implementation" manual, reduced 
626 
remaining material in old "ref" manual. 

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

627 

51050  628 
* Improved support for auxiliary contexts that indicate block structure 
629 
for specifications. Nesting of "context fixes ... context assumes ..." 

49841  630 
and "class ... context ...". 
631 

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

632 
* Attribute "consumes" allows a negative value as well, which is 
50778  633 
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

634 
the target context. This form of declaration is stable when exported 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

635 
from a nested 'context' with additional assumptions. It is the 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

636 
preferred form for definitional packages, notably cases/rules produced 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

637 
in HOL/inductive and HOL/function. 
6973b3f41334
allow negative argument in "consumes" source format;
wenzelm
parents:
50731
diff
changeset

638 

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

639 
* More informative error messages for Isar proof commands involving 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

640 
lazy enumerations (method applications etc.). 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

641 

50213  642 
* Refined 'help' command to retrieve outer syntax commands according 
643 
to name patterns (with clickable results). 

644 

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

645 

49968  646 
*** Prover IDE  Isabelle/Scala/jEdit *** 
647 

648 
* Parallel terminal proofs ('by') are enabled by default, likewise 

649 
proofs that are built into packages like 'datatype', 'function'. This 

650 
allows to "run ahead" checking the theory specifications on the 

651 
surface, while the prover is still crunching on internal 

652 
justifications. Unfinished / cancelled proofs are restarted as 

653 
required to complete full proof checking eventually. 

654 

655 
* Improved output panel with tooltips, hyperlinks etc. based on the 

656 
same Rich_Text_Area as regular Isabelle/jEdit buffers. Activation of 

657 
tooltips leads to some window that supports the same recursively, 

658 
which can lead to stacks of tooltips as the semantic document content 

659 
is explored. ESCAPE closes the whole stack, individual windows may be 

660 
closed separately, or detached to become independent jEdit dockables. 

661 

50717  662 
* Improved support for commands that produce graph output: the text 
663 
message contains a clickable area to open a new instance of the graph 

664 
browser on demand. 

665 

49968  666 
* More robust incremental parsing of outer syntax (partial comments, 
667 
malformed symbols). Changing the balance of open/close quotes and 

668 
comment delimiters works more conveniently with unfinished situations 

669 
that frequently occur in user interaction. 

670 

671 
* More efficient painting and improved reactivity when editing large 

672 
files. More scalable management of formal document content. 

673 

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

674 
* 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

675 
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

676 
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

677 
potentially infinite message streams. 
49968  678 

679 
* More plugin options and preferences, based on Isabelle/Scala. The 

680 
jEdit plugin option panel provides access to some Isabelle/Scala 

681 
options, including tuning parameters for editor reactivity and color 

682 
schemes. 

683 

50184  684 
* Dockable window "Symbols" provides some editing support for Isabelle 
685 
symbols. 

686 

51082  687 
* Dockable window "Monitor" shows ML runtime statistics. Note that 
688 
continuous display of the chart slows down the system. 

50701  689 

50183  690 
* Improved editing support for control styles: subscript, superscript, 
691 
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

692 
selections. Cf. keyboard shortcuts C+e DOWN/UP/RIGHT/LEFT. 
0c7b351a6871
added convenience actions isabelle.increasefontsize and isabelle.decreasefontsize;
wenzelm
parents:
50184
diff
changeset

693 

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

694 
* Actions isabelle.increasefontsize and isabelle.decreasefontsize 
0c7b351a6871
added convenience actions isabelle.increasefontsize and isabelle.decreasefontsize;
wenzelm
parents:
50184
diff
changeset

695 
adjust the main text area font size, and its derivatives for output, 
50836  696 
tooltips etc. Cf. keyboard shortcuts CPLUS and CMINUS, which often 
697 
need to be adapted to local keyboard layouts. 

50183  698 

50730  699 
* More reactive completion popup by default: use \t (TAB) instead of 
700 
\n (NEWLINE) to minimize intrusion into regular flow of editing. See 

701 
also "Plugin Options / SideKick / General / Code Completion Options". 

702 

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

703 
* 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

704 
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

705 
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

706 
Isabelle distribution. 
c28753665b8e
documentation for isabelle build_dialog and its implicit use in isabelle jedit;
wenzelm
parents:
50232
diff
changeset

707 

49968  708 
* Uniform Java 7 platform on Linux, Mac OS X, Windows: recent updates 
709 
from Oracle provide better multiplatform experience. This version is 

710 
now bundled exclusively with Isabelle. 

711 

712 

48205  713 
*** Pure *** 
714 

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

715 
* 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

716 
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

717 

50646  718 
* Command 'export_code': relative file names are interpreted 
719 
relatively to master directory of current theory rather than the 

720 
rather arbitrary current working directory. INCOMPATIBILITY. 

48371  721 

48205  722 
* Discontinued obsolete attribute "COMP". Potential INCOMPATIBILITY, 
723 
use regular rule composition via "OF" / "THEN", or explicit proof 

724 
structure instead. Note that Isabelle/ML provides a variety of 

725 
operators like COMP, INCR_COMP, COMP_INCR, which need to be applied 

726 
with some care where this is really required. 

727 

48792  728 
* Command 'typ' supports an additional variant with explicit sort 
729 
constraint, to infer and check the most general type conforming to a 

51063  730 
given sort. Example (in HOL): 
48792  731 

732 
typ "_ * _ * bool * unit" :: finite 

733 

50716  734 
* Command 'locale_deps' visualizes all locales and their relations as 
735 
a Hasse diagram. 

736 

48205  737 

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

738 
*** HOL *** 
44de84112a67
added optimisation for equational premises in Quickcheck; added some Quickcheck examples; NEWS
bulwahn
parents:
47979
diff
changeset

739 

50646  740 
* Sledgehammer: 
741 

742 
 Added MaSh relevance filter based on machinelearning; see the 

743 
Sledgehammer manual for details. 

744 
 Polished Isar proofs generated with "isar_proofs" option. 

745 
 Rationalized type encodings ("type_enc" option). 

50720  746 
 Renamed "kill_provers" subcommand to "kill_all". 
50646  747 
 Renamed options: 
748 
isar_proof ~> isar_proofs 

749 
isar_shrink_factor ~> isar_shrink 

750 
max_relevant ~> max_facts 

751 
relevance_thresholds ~> fact_thresholds 

752 

753 
* Quickcheck: added an optimisation for equality premises. It is 

754 
switched on by default, and can be switched off by setting the 

755 
configuration quickcheck_optimise_equality to false. 

756 

50878  757 
* Quotient: only one quotient can be defined by quotient_type 
758 
INCOMPATIBILITY. 

759 

760 
* Lifting: 

761 
 generation of an abstraction function equation in lift_definition 

762 
 quot_del attribute 

763 
 renamed no_abs_code > no_code (INCOMPATIBILITY.) 

764 

50646  765 
* Simproc "finite_Collect" rewrites set comprehensions into pointfree 
766 
expressions. 

767 

768 
* Preprocessing of the code generator rewrites set comprehensions into 

769 
pointfree expressions. 

770 

771 
* The SMT solver Z3 has now by default a restricted set of directly 

772 
supported features. For the full set of features (div/mod, nonlinear 

773 
arithmetic, datatypes/records) with potential proof reconstruction 

774 
failures, enable the configuration option "z3_with_extensions". Minor 

775 
INCOMPATIBILITY. 

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

776 

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

777 
* Simplified 'typedef' specifications: historical options for implicit 
c13b39542972
simplified 'typedef' specifications: discontinued implicit set definition and alternative name;
wenzelm
parents:
49822
diff
changeset

778 
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

779 
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

780 
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

781 
accordingly. 
c13b39542972
simplified 'typedef' specifications: discontinued implicit set definition and alternative name;
wenzelm
parents:
49822
diff
changeset

782 

50646  783 
* Removed constant "chars"; prefer "Enum.enum" on type "char" 
784 
directly. INCOMPATIBILITY. 

785 

786 
* Moved operation product, sublists and n_lists from theory Enum to 

787 
List. INCOMPATIBILITY. 

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

788 

49739  789 
* Theorem UN_o generalized to SUP_comp. INCOMPATIBILITY. 
790 

49738  791 
* Class "comm_monoid_diff" formalises properties of bounded 
49388  792 
subtraction, with natural numbers and multisets as typical instances. 
793 

50646  794 
* Added combinator "Option.these" with type "'a option set => 'a set". 
795 

796 
* Theory "Transitive_Closure": renamed lemmas 

797 

798 
reflcl_tranclp > reflclp_tranclp 

799 
rtranclp_reflcl > rtranclp_reflclp 

800 

801 
INCOMPATIBILITY. 

802 

803 
* Theory "Rings": renamed lemmas (in class semiring) 

804 

805 
left_distrib ~> distrib_right 

806 
right_distrib ~> distrib_left 

807 

808 
INCOMPATIBILITY. 

809 

810 
* Generalized the definition of limits: 

811 

812 
 Introduced the predicate filterlim (LIM x F. f x :> G) which 

813 
expresses that when the input values x converge to F then the 

814 
output f x converges to G. 

815 

816 
 Added filters for convergence to positive (at_top) and negative 

817 
infinity (at_bot). 

818 

819 
 Moved infinity in the norm (at_infinity) from 

820 
Multivariate_Analysis to Complex_Main. 

821 

822 
 Removed real_tendsto_inf, it is superseded by "LIM x F. f x :> 

823 
at_top". 

824 

825 
INCOMPATIBILITY. 

826 

827 
* Theory "Library/Option_ord" provides instantiation of option type to 

828 
lattice type classes. 

829 

830 
* Theory "Library/Multiset": renamed 

831 

832 
constant fold_mset ~> Multiset.fold 

833 
fact fold_mset_commute ~> fold_mset_comm 

834 

835 
INCOMPATIBILITY. 

836 

837 
* Renamed theory Library/List_Prefix to Library/Sublist, with related 

838 
changes as follows. 

839 

840 
 Renamed constants (and related lemmas) 

49145  841 

842 
prefix ~> prefixeq 

843 
strict_prefix ~> prefix 

844 

50646  845 
 Replaced constant "postfix" by "suffixeq" with swapped argument 
846 
order (i.e., "postfix xs ys" is now "suffixeq ys xs") and dropped 

847 
old infix syntax "xs >>= ys"; use "suffixeq ys xs" instead. 

848 
Renamed lemmas accordingly. 

849 

850 
 Added constant "list_hembeq" for homeomorphic embedding on 

851 
lists. Added abbreviation "sublisteq" for special case 

852 
"list_hembeq (op =)". 

853 

854 
 Theory Library/Sublist no longer provides "order" and "bot" type 

855 
class instances for the prefix order (merely corresponding locale 

856 
interpretations). The type class instances are now in theory 

857 
Library/Prefix_Order. 

858 

859 
 The sublist relation of theory Library/Sublist_Order is now based 

860 
on "Sublist.sublisteq". Renamed lemmas accordingly: 

50516  861 

862 
le_list_append_le_same_iff ~> Sublist.sublisteq_append_le_same_iff 

863 
le_list_append_mono ~> Sublist.list_hembeq_append_mono 

864 
le_list_below_empty ~> Sublist.list_hembeq_Nil, Sublist.list_hembeq_Nil2 

865 
le_list_Cons_EX ~> Sublist.list_hembeq_ConsD 

866 
le_list_drop_Cons2 ~> Sublist.sublisteq_Cons2' 

867 
le_list_drop_Cons_neq ~> Sublist.sublisteq_Cons2_neq 

868 
le_list_drop_Cons ~> Sublist.sublisteq_Cons' 

869 
le_list_drop_many ~> Sublist.sublisteq_drop_many 

870 
le_list_filter_left ~> Sublist.sublisteq_filter_left 

871 
le_list_rev_drop_many ~> Sublist.sublisteq_rev_drop_many 

872 
le_list_rev_take_iff ~> Sublist.sublisteq_append 

873 
le_list_same_length ~> Sublist.sublisteq_same_length 

874 
le_list_take_many_iff ~> Sublist.sublisteq_append' 

49145  875 
less_eq_list.drop ~> less_eq_list_drop 
876 
less_eq_list.induct ~> less_eq_list_induct 

50516  877 
not_le_list_length ~> Sublist.not_sublisteq_length 
49145  878 

50646  879 
INCOMPATIBILITY. 
880 

881 
* New theory Library/Countable_Set. 

882 

883 
* Theory Library/Debug and Library/Parallel provide debugging and 

884 
parallel execution for code generated towards Isabelle/ML. 

885 

886 
* Theory Library/FuncSet: Extended support for Pi and extensional and 

887 
introduce the extensional dependent function space "PiE". Replaced 

888 
extensional_funcset by an abbreviation, and renamed lemmas from 

889 
extensional_funcset to PiE as follows: 

890 

891 
extensional_empty ~> PiE_empty 

892 
extensional_funcset_empty_domain ~> PiE_empty_domain 

893 
extensional_funcset_empty_range ~> PiE_empty_range 

894 
extensional_funcset_arb ~> PiE_arb 

895 
extensional_funcset_mem ~> PiE_mem 

896 
extensional_funcset_extend_domainI ~> PiE_fun_upd 

897 
extensional_funcset_restrict_domain ~> fun_upd_in_PiE 

898 
extensional_funcset_extend_domain_eq ~> PiE_insert_eq 

899 
card_extensional_funcset ~> card_PiE 

900 
finite_extensional_funcset ~> finite_PiE 

901 

902 
INCOMPATIBILITY. 

903 

904 
* Theory Library/FinFun: theory of almost everywhere constant 

905 
functions (supersedes the AFP entry "Code Generation for Functions as 

906 
Data"). 

907 

908 
* Theory Library/Phantom: generic phantom type to make a type 

909 
parameter appear in a constant's type. This alternative to adding 

910 
TYPE('a) as another parameter avoids unnecessary closures in generated 

911 
code. 

912 

913 
* Theory Library/RBT_Impl: efficient construction of redblack trees 

914 
from sorted associative lists. Merging two trees with rbt_union may 

915 
return a structurally different tree than before. Potential 

916 
INCOMPATIBILITY. 

917 

918 
* Theory Library/IArray: immutable arrays with code generation. 

919 

920 
* Theory Library/Finite_Lattice: theory of finite lattices. 

921 

922 
* HOL/Multivariate_Analysis: replaced 

923 

924 
"basis :: 'a::euclidean_space => nat => real" 

925 
"\<Chi>\<Chi> :: (nat => real) => 'a::euclidean_space" 

926 

927 
on euclidean spaces by using the inner product "_ \<bullet> _" with 

928 
vectors from the Basis set: "\<Chi>\<Chi> i. f i" is superseded by 

929 
"SUM i : Basis. f i * r i". 

930 

931 
With this change the following constants are also changed or removed: 

932 

933 
DIM('a) :: nat ~> card (Basis :: 'a set) (is an abbreviation) 

934 
a $$ i ~> inner a i (where i : Basis) 

935 
cart_base i removed 

936 
\<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

937 

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

938 
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

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 
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

941 

50646  942 
component_le_norm ~> Basis_le_norm 
943 
euclidean_eq ~> euclidean_eq_iff 

944 
differential_zero_maxmin_component ~> differential_zero_maxmin_cart 

945 
euclidean_simps ~> inner_simps 

946 
independent_basis ~> independent_Basis 

947 
span_basis ~> span_Basis 

948 
in_span_basis ~> in_span_Basis 

949 
norm_bound_component_le ~> norm_boound_Basis_le 

950 
norm_bound_component_lt ~> norm_boound_Basis_lt 

951 
component_le_infnorm ~> Basis_le_infnorm 

952 

953 
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

954 

50141  955 
* HOL/Probability: 
50646  956 

957 
 Added simproc "measurable" to automatically prove measurability. 

958 

959 
 Added induction rules for sigma sets with disjoint union 

960 
(sigma_sets_induct_disjoint) and for Borelmeasurable functions 

961 
(borel_measurable_induct). 

962 

963 
 Added the DaniellKolmogorov theorem (the existence the limit of a 

964 
projective family). 

965 

966 
* HOL/Cardinals: Theories of ordinals and cardinals (supersedes the 

967 
AFP entry "Ordinals_and_Cardinals"). 

968 

969 
* HOL/BNF: New (co)datatype package based on bounded natural functors 

970 
with support for mixed, nested recursion and interesting nonfree 

971 
datatypes. 

48094  972 

50991  973 
* HOL/Finite_Set and Relation: added new set and relation operations 
50878  974 
expressed by Finite_Set.fold. 
975 

976 
* New theory HOL/Library/RBT_Set: implementation of sets by redblack 

977 
trees for the code generator. 

978 

979 
* HOL/Library/RBT and HOL/Library/Mapping have been converted to 

980 
Lifting/Transfer. 

981 
possible INCOMPATIBILITY. 

982 

983 
* HOL/Set: renamed Set.project > Set.filter 

984 
INCOMPATIBILITY. 

985 

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

986 

48206  987 
*** Document preparation *** 
988 

50646  989 
* Dropped legacy antiquotations "term_style" and "thm_style", since 
990 
styles may be given as arguments to "term" and "thm" already. 

991 
Discontinued legacy styles "prem1" .. "prem19". 

992 

993 
* Default LaTeX rendering for \<euro> is now based on eurosym package, 

994 
instead of slightly exotic babel/greek. 

48206  995 

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

996 
* 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

997 
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

998 
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

999 

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

1000 
* Simplified custom document/build script, instead of oldstyle 
63ef2f0cf8bb
simplified custom document/build script, instead of oldstyle document/IsaMakefile;
wenzelm
parents:
48616
diff
changeset

1001 
document/IsaMakefile. Minor INCOMPATIBILITY. 
63ef2f0cf8bb
simplified custom document/build script, instead of oldstyle document/IsaMakefile;
wenzelm
parents:
48616
diff
changeset

1002 

48206  1003 

48992  1004 
*** ML *** 
1005 

50646  1006 
* The default limit for maximum number of worker threads is now 8, 
1007 
instead of 4, in correspondence to capabilities of contemporary 

1008 
hardware and Poly/ML runtime system. 

1009 

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

1010 
* Type Seq.results and related operations support embedded error 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1011 
messages within lazy enumerations, and thus allow to provide 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1012 
informative errors in the absence of any usable results. 
bd370af308f0
support for more informative errors in lazy enumerations;
wenzelm
parents:
49841
diff
changeset

1013 

48992  1014 
* Renamed Position.str_of to Position.here to emphasize that this is a 
1015 
formal device to inline positions into message text, but not 

1016 
necessarily printing visible text. 

1017 

1018 

48206  1019 
*** System *** 
1020 

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

1021 
* Advanced support for Isabelle sessions and build management, see 
a82910dd2270
announce advanced support for Isabelle sessions and build management;
wenzelm
parents:
48574
diff
changeset

1022 
"system" manual for the chapter of that name, especially the "isabelle 
51056  1023 
build" tool and its examples. The "isabelle mkroot" tool prepares 
1024 
session root directories for use with "isabelle build", similar to 

1025 
former "isabelle mkdir" for "isabelle usedir". Note that this affects 

1026 
document preparation as well. INCOMPATIBILITY, isabelle usedir / 

48736  1027 
mkdir / make are rendered obsolete. 
1028 

51056  1029 
* Discontinued obsolete Isabelle/build script, it is superseded by the 
1030 
regular isabelle build tool. For example: 

1031 

1032 
isabelle build s b HOL 

1033 

48736  1034 
* Discontinued obsolete "isabelle makeall". 
48585
a82910dd2270
announce advanced support for Isabelle sessions and build management;
wenzelm
parents:
48574
diff
changeset

1035 

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

1036 
* 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

1037 
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

1038 
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

1039 
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

1040 
"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

1041 

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

1042 
* The "isabelle options" tool prints Isabelle system options, as 
ceeea46bdeba
"isabelle options" prints Isabelle system options;
wenzelm
parents:
48683
diff
changeset

1043 
required for "isabelle build", for example. 
ceeea46bdeba
"isabelle options" prints Isabelle system options;
wenzelm
parents:
48683
diff
changeset

1044 

50646  1045 
* The "isabelle logo" tool produces EPS and PDF format simultaneously. 
1046 
Minor INCOMPATIBILITY in commandline options. 

1047 

1048 
* The "isabelle install" tool has now a simpler commandline. Minor 

1049 
INCOMPATIBILITY. 

1050 

48844  1051 
* The "isabelle components" tool helps to resolve addon components 
1052 
that are not bundled, or referenced from a barebones repository 

1053 
version of Isabelle. 

1054 

50646  1055 
* Settings variable ISABELLE_PLATFORM_FAMILY refers to the general 
1056 
platform family: "linux", "macos", "windows". 

1057 

1058 
* The ML system is configured as regular component, and no longer 

1059 
picked up from some surrounding directory. Potential INCOMPATIBILITY 

1060 
for homemade settings. 

50132  1061 

50701  1062 
* Improved ML runtime statistics (heap, threads, future tasks etc.). 
1063 

48206  1064 
* Discontinued support for Poly/ML 5.2.1, which was the last version 
1065 
without exception positions and advanced ML compiler/toplevel 

1066 
configuration. 

1067 

48574  1068 
* Discontinued special treatment of Proof General  no longer guess 
1069 
PROOFGENERAL_HOME based on accidental filesystem layout. Minor 

1070 
INCOMPATIBILITY: provide PROOFGENERAL_HOME and PROOFGENERAL_OPTIONS 

1071 
settings manually, or use a Proof General version that has been 

1072 
bundled as Isabelle component. 

48206  1073 

50182  1074 

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

1075 

47462  1076 
New in Isabelle2012 (May 2012) 
1077 
 

45109  1078 

45593  1079 
*** General *** 
1080 

45614  1081 
* Prover IDE (PIDE) improvements: 
1082 

47585  1083 
 more robust Sledgehammer integration (as before the sledgehammer 
47806  1084 
commandline needs to be typed into the source buffer) 
45614  1085 
 markup for bound variables 
47806  1086 
 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

1087 
 support for userdefined Isar commands within the running session 
47158  1088 
 improved support for Unicode outside original 16bit range 
1089 
e.g. glyph for \<A> (thanks to jEdit 4.5.1) 

45614  1090 

47806  1091 
* Forward declaration of outer syntax keywords within the theory 
1092 
header  minor INCOMPATIBILITY for userdefined commands. Allow new 

1093 
commands to be used in the same theory where defined. 

46485  1094 

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

1095 
* 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

1096 
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

1097 
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

1098 
'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

1099 
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

1100 

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

1101 
context 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1102 
fixes x y z :: 'a 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1103 
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

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

1105 

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

1106 
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

1107 

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

1108 
end 
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 
thm my_trans 
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 
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

1113 
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

1114 
~~/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

1115 

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

1116 
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

1117 
... begin ... end" block as well. 
a83b25e5bad3
some coverage of unnamed contexts, which can be nested within other targets;
wenzelm
parents:
47464
diff
changeset

1118 

47484  1119 
* Bundled declarations associate attributed fact expressions with a 
1120 
given name in the context. These may be later included in other 

1121 
contexts. This allows to manage context extensions casually, without 

47855  1122 
the logical dependencies of locales and locale interpretation. See 
1123 
commands 'bundle', 'include', 'including' etc. in the isarref manual. 

47484  1124 

47829  1125 
* Commands 'lemmas' and 'theorems' allow local variables using 'for' 
1126 
declaration, and results are standardized before being stored. Thus 

1127 
oldstyle "standard" after instantiation or composition of facts 

1128 
becomes obsolete. Minor INCOMPATIBILITY, due to potential change of 

1129 
indices of schematic variables. 

1130 

1131 
* Rule attributes in local theory declarations (e.g. locale or class) 

1132 
are now statically evaluated: the resulting theorem is stored instead 

1133 
of the original expression. INCOMPATIBILITY in rare situations, where 

1134 
the historic accident of dynamic reevaluation in interpretations 

1135 
etc. was exploited. 

1136 

1137 
* New tutorial "Programming and Proving in Isabelle/HOL" 

1138 
("progprove"). It completely supersedes "A Tutorial Introduction to 

1139 
Structured Isar Proofs" ("isaroverview"), which has been removed. It 

1140 
also supersedes "Isabelle/HOL, A Proof Assistant for HigherOrder 

1141 
Logic" as the recommended beginners tutorial, but does not cover all 

1142 
of the material of that old tutorial. 

1143 

1144 
* Updated and extended reference manuals: "isarref", 

1145 
"implementation", "system"; reduced remaining material in old "ref" 

1146 
manual. 

1147 

1148 

1149 
*** Pure *** 

1150 

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

1151 
* Command 'definition' no longer exports the foundational "raw_def" 
80123a220219
'definition' no longer exports the foundational "raw_def";
wenzelm
parents:
46966
diff
changeset

1152 
into the user context. Minor INCOMPATIBILITY, may use the regular 
80123a220219
'definition' no longer exports the foundational "raw_def";
wenzelm
parents:
46966
diff
changeset

1153 
"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

1154 

47855  1155 
* Attribute "abs_def" turns an equation of the form "f x y == t" into 
1156 
"f == %x y. t", which ensures that "simp" or "unfold" steps always 

1157 
expand it. This also works for objectlogic equality. (Formerly 

1158 
undocumented feature.) 

1159 

47856  1160 
* Sort constraints are now propagated in simultaneous statements, just 
1161 
like type constraints. INCOMPATIBILITY in rare situations, where 

1162 
distinct sorts used to be assigned accidentally. For example: 

1163 

1164 
lemma "P (x::'a::foo)" and "Q (y::'a::bar)"  "now illegal" 

1165 

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

1167 
 "now uniform 'a::bar instead of default sort for first occurrence (!)" 

1168 

1169 
* Rule composition via attribute "OF" (or ML functions OF/MRS) is more 

1170 
tolerant against multiple unifiers, as long as the final result is 

1171 
unique. (As before, rules are composed in canonical righttoleft 

1172 
order to accommodate newly introduced premises.) 

1173 

47806  1174 
* Renamed some inner syntax categories: 
1175 

1176 
num ~> num_token 

1177 
xnum ~> xnum_token 

1178 
xstr ~> str_token 

1179 

1180 
Minor INCOMPATIBILITY. Note that in practice "num_const" or 

1181 
"num_position" etc. are mainly used instead (which also include 

1182 
position information via constraints). 

1183 

47829  1184 
* Simplified configuration options for syntax ambiguity: see 
1185 
"syntax_ambiguity_warning" and "syntax_ambiguity_limit" in isarref 

1186 
manual. Minor INCOMPATIBILITY. 

1187 

47856  1188 
* Discontinued configuration option "syntax_positions": atomic terms 
1189 
in parse trees are always annotated by position constraints. 

45134  1190 

47464  1191 
* Old code generator for SML and its commands 'code_module', 
45383  1192 
'code_library', 'consts_code', 'types_code' have been discontinued. 
46028
9f113cdf3d66
attribute code_abbrev superseedes code_unfold_post
haftmann
parents:
46014
diff
changeset

1193 
Use commands of the generic code generator instead. INCOMPATIBILITY. 
45383  1194 

47464  1195 
* Redundant attribute "code_inline" has been discontinued. Use 
1196 
"code_unfold" instead. INCOMPATIBILITY. 

1197 

1198 
* Dropped attribute "code_unfold_post" in favor of the its dual 

1199 
"code_abbrev", which yields a common pattern in definitions like 

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

1200 

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

1201 
definition [code_abbrev]: "f = t" 
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 
INCOMPATIBILITY. 
45383  1204 

47856  1205 
* Obsolete 'types' command has been discontinued. Use 'type_synonym' 
1206 
instead. INCOMPATIBILITY. 

1207 

1208 
* Discontinued old "prems" fact, which used to refer to the accidental 

1209 
collection of foundational premises in the context (already marked as 

1210 
legacy since Isabelle2011). 

47855  1211 

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

1212 

45122  1213 
*** HOL *** 
1214 

47464  1215 
* Type 'a set is now a proper type constructor (just as before 
1216 
Isabelle2008). Definitions mem_def and Collect_def have disappeared. 

1217 
Nontrivial INCOMPATIBILITY. For developments keeping predicates and 

47855  1218 
sets separate, it is often sufficient to rephrase some set S that has 
1219 
been accidentally used as predicates by "%x. x : S", and some 

1220 
predicate P that has been accidentally used as set by "{x. P x}". 

1221 
Corresponding proofs in a first step should be pruned from any 

1222 
tinkering with former theorems mem_def and Collect_def as far as 

1223 
possible. 

1224 

1225 
For developments which deliberately mix predicates and sets, a 

47464  1226 
planning step is necessary to determine what should become a predicate 
1227 
and what a set. It can be helpful to carry out that step in 

1228 
Isabelle20111 before jumping right into the current release. 

1229 

47855  1230 
* Code generation by default implements sets as container type rather 
1231 
than predicates. INCOMPATIBILITY. 

1232 

1233 
* New type synonym 'a rel = ('a * 'a) set 

1234 

47464  1235 
* The representation of numerals has changed. Datatype "num" 
1236 
represents strictly positive binary numerals, along with functions 

1237 
"numeral :: num => 'a" and "neg_numeral :: num => 'a" to represent 

47855  1238 
positive and negated numeric literals, respectively. See also 
1239 
definitions in ~~/src/HOL/Num.thy. Potential INCOMPATIBILITY, some 

1240 
user theories may require adaptations as follows: 

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

1241 

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

1242 
 Theorems with number_ring or number_semiring constraints: These 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1243 
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

1244 

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

1245 
 Theories defining numeric types: Remove number, number_semiring, 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1246 
and number_ring instances. Defer all theorems about numerals until 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1247 
after classes one and semigroup_add have been instantiated. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1248 

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

1249 
 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

1250 
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

1251 

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

1252 
 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

1253 
automatically support numerals now, so more simp rules and 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1254 
simprocs may now apply within the proof. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1255 

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

1256 
 Definitions and theorems using old constructors Pls/Min/Bit0/Bit1: 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1257 
Redefine using other integer operations. 
2a1953f0d20d
merged fork with new numeral representation (see NEWS)
huffman
parents:
47086
diff
changeset

1258 

47855  1259 
* Transfer: New package intended to generalize the existing 
1260 
"descending" method and related theorem attributes from the Quotient 

1261 
package. (Not all functionality is implemented yet, but future 

1262 
development will focus on Transfer as an eventual replacement for the 

1263 
corresponding parts of the Quotient package.) 

47809  1264 

1265 
 transfer_rule attribute: Maintains a collection of transfer rules, 

1266 
which relate constants at two different types. Transfer rules may 

1267 
relate different type instances of the same polymorphic constant, 

1268 
or they may relate an operation on a raw type to a corresponding 

1269 
operation on an abstract type (quotient or subtype). For example: 

1270 

1271 
((A ===> B) ===> list_all2 A ===> list_all2 B) map map 

1272 
(cr_int ===> cr_int ===> cr_int) (%(x,y) (u,v). (x+u, y+v)) plus_int 

1273 

1274 
 transfer method: Replaces a subgoal on abstract types with an 

1275 
equivalent subgoal on the corresponding raw types. Constants are 

1276 
replaced with corresponding ones according to the transfer rules. 

1277 
Goals are generalized over all free variables by default; this is 

47851  1278 
necessary for variables whose types change, but can be overridden 
47855  1279 
for specific variables with e.g. "transfer fixing: x y z". The 
47809  1280 
variant transfer' method allows replacing a subgoal with one that 
1281 
is logically stronger (rather than equivalent). 

1282 

1283 
 relator_eq attribute: Collects identity laws for relators of 

1284 
various type constructors, e.g. "list_all2 (op =) = (op =)". The 

1285 
transfer method uses these lemmas to infer transfer rules for 

1286 
nonpolymorphic constants on the fly. 

1287 

1288 
 transfer_prover method: Assists with proving a transfer rule for a 

1289 
new constant, provided the constant is defined in terms of other 

1290 
constants that already have transfer rules. It should be applied 

1291 
after unfolding the constant definitions. 

1292 

1293 
 HOL/ex/Transfer_Int_Nat.thy: Example theory demonstrating transfer 

1294 
from type nat to type int. 

1295 

47851  1296 
* Lifting: New package intended to generalize the quotient_definition 
1297 
facility of the Quotient package; designed to work with Transfer. 

47809  1298 

1299 
 lift_definition command: Defines operations on an abstract type in 

1300 
terms of a corresponding operation on a representation 

1301 
type. Example syntax: 

1302 

1303 
lift_definition dlist_insert :: "'a => 'a dlist => 'a dlist" 

1304 
is List.insert 

1305 

1306 
Users must discharge a respectfulness proof obligation when each 

1307 
constant is defined. (For a type copy, i.e. a typedef with UNIV, 

1308 
the proof is discharged automatically.) The obligation is 

1309 
presented in a userfriendly, readable form; a respectfulness 

1310 
theorem in the standard format and a transfer rule are generated 

1311 
by the package. 

1312 

1313 
 Integration with code_abstype: For typedefs (e.g. subtypes 

1314 
corresponding to a datatype invariant, such as dlist), 

1315 
lift_definition generates a code certificate theorem and sets up 

1316 
code generation for each constant. 

1317 

1318 
 setup_lifting command: Sets up the Lifting package to work with a 

1319 
userdefined type. The user must provide either a quotient theorem 

1320 
or a type_definition theorem. The package configures transfer 

1321 
rules for equality and quantifiers on the type, and sets up the 

1322 
lift_definition command to work with the type. 

1323 

1324 
 Usage examples: See Quotient_Examples/Lift_DList.thy, 

47851  1325 
Quotient_Examples/Lift_RBT.thy, Quotient_Examples/Lift_FSet.thy, 
1326 
Word/Word.thy and Library/Float.thy. 

47809  1327 

1328 
* Quotient package: 

1329 

1330 
 The 'quotient_type' command now supports a 'morphisms' option with 

1331 
rep and abs functions, similar to typedef. 

1332 

1333 
 'quotient_type' sets up new types to work with the Lifting and 

1334 
Transfer packages, as with 'setup_lifting'. 

1335 

1336 
 The 'quotient_definition' command now requires the user to prove a 

1337 
respectfulness property at the point where the constant is 

1338 
defined, similar to lift_definition; INCOMPATIBILITY. 

1339 

1340 
 Renamed predicate 'Quotient' to 'Quotient3', and renamed theorems 

1341 
accordingly, INCOMPATIBILITY. 

1342 

1343 
* New diagnostic command 'find_unused_assms' to find potentially 

1344 
superfluous assumptions in theorems using Quickcheck. 

1345 

1346 
* Quickcheck: 

1347 

1348 
 Quickcheck returns variable assignments as counterexamples, which 

1349 
allows to reveal the underspecification of functions under test. 

1350 
For example, refuting "hd xs = x", it presents the variable 

1351 
assignment xs = [] and x = a1 as a counterexample, assuming that 

1352 
any property is false whenever "hd []" occurs in it. 

1353 

1354 
These counterexample are marked as potentially spurious, as 

1355 
Quickcheck also returns "xs = []" as a counterexample to the 

1356 
obvious theorem "hd xs = hd xs". 

1357 

1358 
After finding a potentially spurious counterexample, Quickcheck 

1359 
continues searching for genuine ones. 

1360 

1361 
By default, Quickcheck shows potentially spurious and genuine 

1362 
counterexamples. The option "genuine_only" sets quickcheck to only 

1363 
show genuine counterexamples. 

1364 

1365 
 The command 'quickcheck_generator' creates random and exhaustive 

1366 
value generators for a given type and operations. 

1367 

1368 
It generates values by using the operations as if they were 

1369 
constructors of that type. 

1370 

1371 
 Support for multisets. 

1372 

1373 
 Added "use_subtype" options. 

1374 

1375 
 Added "quickcheck_locale" configuration to specify how to process 

1376 
conjectures in a locale context. 

1377 

47855  1378 
* Nitpick: Fixed infinite loop caused by the 'peephole_optim' option 
1379 
and affecting 'rat' and 'real'. 

47809  1380 

1381 
* Sledgehammer: 

1382 
 Integrated more tightly with SPASS, as described in the ITP 2012 

1383 
paper "More SPASS with Isabelle". 

1384 
 Made it try "smt" as a fallback if "metis" fails or times out. 

1385 
 Added support for the following provers: AltErgo (via Why3 and 

1386 
TFF1), iProver, iProverEq. 

1387 
 Sped up the minimizer. 

1388 
 Added "lam_trans", "uncurry_aliases", and "minimize" options. 

1389 
 Renamed "slicing" ("no_slicing") option to "slice" ("dont_slice"). 

1390 
 Renamed "sound" option to "strict". 

1391 

47855  1392 
* Metis: Added possibility to specify lambda translations scheme as a 
1393 
parenthesized argument (e.g., "by (metis (lifting) ...)"). 

1394 

1395 
* SMT: Renamed "smt_fixed" option to "smt_read_only_certificates". 

1396 

1397 
* Command 'try0': Renamed from 'try_methods'. INCOMPATIBILITY. 

47809  1398 

47856  1399 
* New "case_product" attribute to generate a case rule doing multiple 
1400 
case distinctions at the same time. E.g. 

1401 

1402 
list.exhaust [case_product nat.exhaust] 

1403 

1404 
produces a rule which can be used to perform case distinction on both 

1405 
a list and a nat. 

1406 

47809  1407 
* New "eventually_elim" method as a generalized variant of the 
47855  1408 
eventually_elim* rules. Supports structured proofs. 
1409 

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

1410 
* Typedef with implicit set definition is considered legacy. Use 
5f9ce06f281e
typedef with implicit set definition is considered legacy;
wenzelm
parents:
47694
diff
changeset

1411 
"typedef (open)" form instead, which will eventually become the 
5f9ce06f281e
typedef with implicit set definition is considered legacy;
wenzelm
parents:
47694
diff
changeset

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

1413 

47856  1414 
* Record: code generation can be switched off manually with 
1415 

1416 
declare [[record_coden = false]]  "default true" 

1417 

1418 
* Datatype: type parameters allow explicit sort constraints. 

1419 

47855  1420 
* Concrete syntax for case expressions includes constraints for source 
1421 
positions, and thus produces Prover IDE markup for its bindings. 

1422 
INCOMPATIBILITY for oldstyle syntax translations that augment the 

1423 
pattern notation; e.g. see src/HOL/HOLCF/One.thy for translations of 

1424 
one_case. 

1425 

1426 
* Clarified attribute "mono_set": pure declaration without modifying 

1427 
the result of the fact expression. 

1428 

46752
e9e7209eb375
more fundamental predtoset conversions, particularly by means of inductive_set; associated consolidation of some theorem names (c.f. NEWS)
haftmann
parents:
46732
diff
changeset

1429 
* More default pred/set conversions on a couple of relation operations 
47464  1430 
and predicates. Added powers of predicate relations. Consolidation 
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