author  wenzelm 
Wed, 20 Apr 2016 11:44:25 +0200  
changeset 63032  e0fa59bbc956 
parent 63022  785a59235a15 
child 63039  1a20fd9cf281 
permissions  rwrr 
57491  1 
Isabelle NEWS  history of userrelevant changes 
2 
================================================= 

2553  3 

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(Note: Isabelle/jEdit shows a treeview of the NEWS file in Sidekick.) 
60006  5 

60331  6 

62216  7 
New in this Isabelle version 
8 
 

9 

62440  10 
*** General *** 
11 

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Type_Infer.object_logic controls improvement of type inference result;
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* Typeinference improves sorts of newly introduced type variables for 
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the objectlogic, using its base sort (i.e. HOL.type for Isabelle/HOL). 
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Type_Infer.object_logic controls improvement of type inference result;
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Thus terms like "f x" or "\<And>x. P x" without any further syntactic context 
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produce x::'a::type in HOL instead of x::'a::{} in Pure. Rare 
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INCOMPATIBILITY, need to provide explicit type constraints for Pure 
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types where this is really intended. 
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62969  19 
* Simplified outer syntax: uniform category "name" includes long 
20 
identifiers. Former "xname" / "nameref" / "name reference" has been 

21 
discontinued. 

22 

62807  23 
* Mixfix annotations support general block properties, with syntax 
24 
"(\<open>x=a y=b z \<dots>\<close>". Notable property names are "indent", "consistent", 

25 
"unbreakable", "markup". The existing notation "(DIGITS" is equivalent 

26 
to "(\<open>indent=DIGITS\<close>". The former notation "(00" for unbreakable blocks 

27 
is superseded by "(\<open>unbreabable\<close>"  rare INCOMPATIBILITY. 

62789  28 

62440  29 
* New symbol \<circle>, e.g. for temporal operator. 
30 

62453  31 
* Old 'header' command is no longer supported (legacy since 
32 
Isabelle2015). 

33 

62440  34 

62904  35 
*** Prover IDE  Isabelle/Scala/jEdit *** 
36 

63022  37 
* IDE support for the Isabelle/Pure bootstrap process, with the 
38 
following independent stages: 

39 

40 
src/Pure/ROOT0.ML 

41 
src/Pure/ROOT.ML 

42 
src/Pure/Pure.thy 

43 
src/Pure/ML_Bootstrap.thy 

44 

45 
The ML ROOT files act like quasitheories in the context of theory 

46 
ML_Bootstrap: this allows continuous checking of all loaded ML files. 

47 
The theory files are presented with a modified header to import Pure 

48 
from the running Isabelle instance. Results from changed versions of 

49 
each stage are *not* propagated to the next stage, and isolated from the 

50 
actual Isabelle/Pure that runs the IDE itself. The sequential 

51 
dependencies of the above files are only relevant for batch build. 

62904  52 

62987
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highlighting of entity def/ref positions wrt. cursor;
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* Highlighting of entity def/ref positions wrt. cursor. 
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highlighting of entity def/ref positions wrt. cursor;
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* Document markup works across multiple Isar commands, e.g. the results 
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established at the end of a proof are properly identified in the theorem 
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statement. 
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62904  59 

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command '\<proof>' is an alias for 'sorry', with different typesetting;
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*** Isar *** 
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* Command '\<proof>' is an alias for 'sorry', with different 
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typesetting. E.g. to produce proof holes in examples and documentation. 
62216  64 

62939  65 
* The old proof method "default" has been removed (legacy since 
66 
Isabelle2016). INCOMPATIBILITY, use "standard" instead. 

67 

62216  68 

62327  69 
*** HOL *** 
70 

62522  71 
* New abbreviations for negated existence (but not bounded existence): 
72 

73 
\<nexists>x. P x \<equiv> \<not> (\<exists>x. P x) 

74 
\<nexists>!x. P x \<equiv> \<not> (\<exists>!x. P x) 

75 

62521  76 
* The print mode "HOL" for ASCII syntax of binders "!", "?", "?!", "@" 
77 
has been removed for output. It is retained for input only, until it is 

78 
eliminated altogether. 

79 

62327  80 
* (Co)datatype package: 
62693  81 
 New commands for defining corecursive functions and reasoning about 
82 
them in "~~/src/HOL/Library/BNF_Corec.thy": 'corec', 'corecursive', 

83 
'friend_of_corec', and 'corecursion_upto'; and 'corec_unique' proof 

62842  84 
method. See 'isabelle doc corec'. 
62693  85 
 The predicator :: ('a => bool) => 'a F => bool is now a firstclass 
62332  86 
citizen in bounded natural functors 
62693  87 
 'primrec' now allows nested calls through the predicator in addition 
62327  88 
to the map function. 
62693  89 
 'bnf' automatically discharges reflexive proof obligations 
90 
 'bnf' outputs a slightly modified proof obligation expressing rel in 

62332  91 
terms of map and set 
92 
(not giving a specification for rel makes this one reflexive) 

62693  93 
 'bnf' outputs a new proof obligation expressing pred in terms of set 
62332  94 
(not giving a specification for pred makes this one reflexive) 
62693  95 
INCOMPATIBILITY: manual 'bnf' declarations may need adjustment 
62335  96 
 Renamed lemmas: 
97 
rel_prod_apply ~> rel_prod_inject 

98 
pred_prod_apply ~> pred_prod_inject 

99 
INCOMPATIBILITY. 

62536
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 The "size" plugin has been made compatible again with locales. 
62327  101 

62407  102 
* Renamed split_if > if_split and split_if_asm > if_split_asm to 
103 
resemble the f.split naming convention, INCOMPATIBILITY. 

62396  104 

62597  105 
* Characters (type char) are modelled as finite algebraic type 
106 
corresponding to {0..255}. 

107 

108 
 Logical representation: 

109 
* 0 is instantiated to the ASCII zero character. 

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* All other characters are represented as "Char n" 
62597  111 
with n being a raw numeral expression less than 256. 
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* Expressions of the form "Char n" with n greater than 255 
62597  113 
are noncanonical. 
114 
 Printing and parsing: 

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* Printable characters are printed and parsed as "CHR ''\<dots>''" 
62597  116 
(as before). 
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* The ASCII zero character is printed and parsed as "0". 
62678  118 
* All other canonical characters are printed as "CHR 0xXX" 
119 
with XX being the hexadecimal character code. "CHR n" 

62597  120 
is parsable for every numeral expression n. 
62598  121 
* Noncanonical characters have no special syntax and are 
62597  122 
printed as their logical representation. 
123 
 Explicit conversions from and to the natural numbers are 

124 
provided as char_of_nat, nat_of_char (as before). 

125 
 The auxiliary nibble type has been discontinued. 

126 

127 
INCOMPATIBILITY. 

128 

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* Multiset membership is now expressed using set_mset rather than count. 
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 Expressions "count M a > 0" and similar simplify to membership 
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by default. 
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 Converting between "count M a = 0" and nonmembership happens using 
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equations count_eq_zero_iff and not_in_iff. 
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 Rules count_inI and in_countE obtain facts of the form 
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"count M a = n" from membership. 
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 Rules count_in_diffI and in_diff_countE obtain facts of the form 
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"count M a = n + count N a" from membership on difference sets. 
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INCOMPATIBILITY. 
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prefer abbreviations for compound operators INFIMUM and SUPREMUM
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* Compound constants INFIMUM and SUPREMUM are mere abbreviations now. 
24106dc44def
prefer abbreviations for compound operators INFIMUM and SUPREMUM
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INCOMPATIBILITY. 
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prefer abbreviations for compound operators INFIMUM and SUPREMUM
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147 

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Conformal_mappings: a big development in complex analysis (+ some lemmas)
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* More complex analysis including Cauchy's inequality, Liouville theorem, 
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open mapping theorem, maximum modulus principle, Schwarz Lemma. 
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Conformal_mappings: a big development in complex analysis (+ some lemmas)
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150 

62358  151 
* "Gcd (f ` A)" and "Lcm (f ` A)" are printed with optional 
152 
comprehensionlike syntax analogously to "Inf (f ` A)" and "Sup (f ` A)". 

153 

62345  154 
* Class semiring_Lcd merged into semiring_Gcd. INCOMPATIBILITY. 
155 

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* The type class ordered_comm_monoid_add is now called 
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ordered_cancel_comm_monoid_add. A new type class ordered_comm_monoid_add is 
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introduced as the combination of ordered_ab_semigroup_add + comm_monoid_add. 
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INCOMPATIBILITY. 
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* Introduced the type classes canonically_ordered_comm_monoid_add and dioid. 
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162 

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* Added topological_monoid 
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164 

62652
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move Complete_Partial_Orders2 from AFP/Coinductive to HOL/Library
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* Library/Complete_Partial_Order2.thy provides reasoning support for 
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166 
proofs about monotonicity and continuity in chaincomplete partial 
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167 
orders and about admissibility conditions for fixpoint inductions. 
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168 

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* Library/Polynomial.thy contains also derivation of polynomials 
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170 
but not gcd/lcm on polynomials over fields. This has been moved 
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to a separate theory Library/Polynomial_GCD_euclidean.thy, to 
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pave way for a possible future different type class instantiation 
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173 
for polynomials over factorial rings. INCOMPATIBILITY. 
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174 

62348  175 
* Dropped various legacy fact bindings, whose replacements are often 
176 
of a more general type also: 

177 
lcm_left_commute_nat ~> lcm.left_commute 

178 
lcm_left_commute_int ~> lcm.left_commute 

179 
gcd_left_commute_nat ~> gcd.left_commute 

180 
gcd_left_commute_int ~> gcd.left_commute 

181 
gcd_greatest_iff_nat ~> gcd_greatest_iff 

182 
gcd_greatest_iff_int ~> gcd_greatest_iff 

183 
coprime_dvd_mult_nat ~> coprime_dvd_mult 

184 
coprime_dvd_mult_int ~> coprime_dvd_mult 

185 
zpower_numeral_even ~> power_numeral_even 

186 
gcd_mult_cancel_nat ~> gcd_mult_cancel 

187 
gcd_mult_cancel_int ~> gcd_mult_cancel 

188 
div_gcd_coprime_nat ~> div_gcd_coprime 

189 
div_gcd_coprime_int ~> div_gcd_coprime 

190 
zpower_numeral_odd ~> power_numeral_odd 

191 
zero_less_int_conv ~> of_nat_0_less_iff 

192 
gcd_greatest_nat ~> gcd_greatest 

193 
gcd_greatest_int ~> gcd_greatest 

194 
coprime_mult_nat ~> coprime_mult 

195 
coprime_mult_int ~> coprime_mult 

196 
lcm_commute_nat ~> lcm.commute 

197 
lcm_commute_int ~> lcm.commute 

198 
int_less_0_conv ~> of_nat_less_0_iff 

199 
gcd_commute_nat ~> gcd.commute 

200 
gcd_commute_int ~> gcd.commute 

201 
Gcd_insert_nat ~> Gcd_insert 

202 
Gcd_insert_int ~> Gcd_insert 

203 
of_int_int_eq ~> of_int_of_nat_eq 

204 
lcm_least_nat ~> lcm_least 

205 
lcm_least_int ~> lcm_least 

206 
lcm_assoc_nat ~> lcm.assoc 

207 
lcm_assoc_int ~> lcm.assoc 

208 
int_le_0_conv ~> of_nat_le_0_iff 

209 
int_eq_0_conv ~> of_nat_eq_0_iff 

210 
Gcd_empty_nat ~> Gcd_empty 

211 
Gcd_empty_int ~> Gcd_empty 

212 
gcd_assoc_nat ~> gcd.assoc 

213 
gcd_assoc_int ~> gcd.assoc 

214 
zero_zle_int ~> of_nat_0_le_iff 

215 
lcm_dvd2_nat ~> dvd_lcm2 

216 
lcm_dvd2_int ~> dvd_lcm2 

217 
lcm_dvd1_nat ~> dvd_lcm1 

218 
lcm_dvd1_int ~> dvd_lcm1 

219 
gcd_zero_nat ~> gcd_eq_0_iff 

220 
gcd_zero_int ~> gcd_eq_0_iff 

221 
gcd_dvd2_nat ~> gcd_dvd2 

222 
gcd_dvd2_int ~> gcd_dvd2 

223 
gcd_dvd1_nat ~> gcd_dvd1 

224 
gcd_dvd1_int ~> gcd_dvd1 

225 
int_numeral ~> of_nat_numeral 

226 
lcm_ac_nat ~> ac_simps 

227 
lcm_ac_int ~> ac_simps 

228 
gcd_ac_nat ~> ac_simps 

229 
gcd_ac_int ~> ac_simps 

230 
abs_int_eq ~> abs_of_nat 

231 
zless_int ~> of_nat_less_iff 

232 
zdiff_int ~> of_nat_diff 

233 
zadd_int ~> of_nat_add 

234 
int_mult ~> of_nat_mult 

235 
int_Suc ~> of_nat_Suc 

236 
inj_int ~> inj_of_nat 

237 
int_1 ~> of_nat_1 

238 
int_0 ~> of_nat_0 

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239 
Lcm_empty_nat ~> Lcm_empty 
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240 
Lcm_empty_int ~> Lcm_empty 
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241 
Lcm_insert_nat ~> Lcm_insert 
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242 
Lcm_insert_int ~> Lcm_insert 
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243 
comp_fun_idem_gcd_nat ~> comp_fun_idem_gcd 
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comp_fun_idem_gcd_int ~> comp_fun_idem_gcd 
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comp_fun_idem_lcm_nat ~> comp_fun_idem_lcm 
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comp_fun_idem_lcm_int ~> comp_fun_idem_lcm 
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247 
Lcm_eq_0 ~> Lcm_eq_0_I 
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248 
Lcm0_iff ~> Lcm_0_iff 
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changeset

249 
Lcm_dvd_int ~> Lcm_least 
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
62352
diff
changeset

250 
divides_mult_nat ~> divides_mult 
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
62352
diff
changeset

251 
divides_mult_int ~> divides_mult 
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
62352
diff
changeset

252 
lcm_0_nat ~> lcm_0_right 
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
62352
diff
changeset

253 
lcm_0_int ~> lcm_0_right 
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
62352
diff
changeset

254 
lcm_0_left_nat ~> lcm_0_left 
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
62352
diff
changeset

255 
lcm_0_left_int ~> lcm_0_left 
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
62352
diff
changeset

256 
dvd_gcd_D1_nat ~> dvd_gcdD1 
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
62352
diff
changeset

257 
dvd_gcd_D1_int ~> dvd_gcdD1 
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
62352
diff
changeset

258 
dvd_gcd_D2_nat ~> dvd_gcdD2 
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
62352
diff
changeset

259 
dvd_gcd_D2_int ~> dvd_gcdD2 
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
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diff
changeset

260 
coprime_dvd_mult_iff_nat ~> coprime_dvd_mult_iff 
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
62352
diff
changeset

261 
coprime_dvd_mult_iff_int ~> coprime_dvd_mult_iff 
62348  262 
realpow_minus_mult ~> power_minus_mult 
263 
realpow_Suc_le_self ~> power_Suc_le_self 

62353
7f927120b5a2
dropped various legacy fact bindings and tuned proofs
haftmann
parents:
62352
diff
changeset

264 
dvd_Gcd, dvd_Gcd_nat, dvd_Gcd_int removed in favour of Gcd_greatest 
62347  265 
INCOMPATIBILITY. 
266 

62479  267 
* Session HOLNSA has been renamed to HOLNonstandard_Analysis. 
268 

62975
1d066f6ab25d
Probability: move emeasure and nn_integral from ereal to ennreal
hoelzl
parents:
62969
diff
changeset

269 
* In HOLProbability the type of emeasure and nn_integral was changed 
1d066f6ab25d
Probability: move emeasure and nn_integral from ereal to ennreal
hoelzl
parents:
62969
diff
changeset

270 
from ereal to ennreal: 
1d066f6ab25d
Probability: move emeasure and nn_integral from ereal to ennreal
hoelzl
parents:
62969
diff
changeset

271 
emeasure :: 'a measure => 'a set => ennreal 
1d066f6ab25d
Probability: move emeasure and nn_integral from ereal to ennreal
hoelzl
parents:
62969
diff
changeset

272 
nn_integral :: 'a measure => ('a => ennreal) => ennreal 
62976  273 
INCOMPATIBILITY. 
62327  274 

62498  275 
*** ML *** 
276 

62861  277 
* The ML function "ML" provides easy access to runtime compilation. 
278 
This is particularly useful for conditional compilation, without 

279 
requiring separate files. 

280 

62851  281 
* Lowlevel ML system structures (like PolyML and RunCall) are no longer 
62886
72c475e03e22
simplified bootstrap: critical structures remain accessible in ML_Root context;
wenzelm
parents:
62875
diff
changeset

282 
exposed to Isabelle/ML userspace. Potential INCOMPATIBILITY. 
62851  283 

62662
291cc01f56f5
@{make_string} is available during Pure bootstrap;
wenzelm
parents:
62645
diff
changeset

284 
* Antiquotation @{make_string} is available during Pure bootstrap  
291cc01f56f5
@{make_string} is available during Pure bootstrap;
wenzelm
parents:
62645
diff
changeset

285 
with approximative output quality. 
291cc01f56f5
@{make_string} is available during Pure bootstrap;
wenzelm
parents:
62645
diff
changeset

286 

62498  287 
* Option ML_exception_debugger controls detailed exception trace via the 
288 
Poly/ML debugger. Relevant ML modules need to be compiled beforehand 

289 
with ML_file_debug, or with ML_file and option ML_debugger enabled. Note 

290 
debugger information requires consirable time and space: main 

291 
Isabelle/HOL with full debugger support may need ML_system_64. 

292 

62514  293 
* Local_Theory.restore has been renamed to Local_Theory.reset to 
294 
emphasize its disruptive impact on the cumulative context, notably the 

295 
scope of 'private' or 'qualified' names. Note that Local_Theory.reset is 

296 
only appropriate when targets are managed, e.g. starting from a global 

297 
theory and returning to it. Regular definitional packages should use 

298 
balanced blocks of Local_Theory.open_target versus 

299 
Local_Theory.close_target instead. Rare INCOMPATIBILITY. 

300 

62519  301 
* Structure TimeLimit (originally from the SML/NJ library) has been 
302 
replaced by structure Timeout, with slightly different signature. 

303 
INCOMPATIBILITY. 

304 

62551  305 
* Discontinued cd and pwd operations, which are not welldefined in a 
306 
multithreaded environment. Note that files are usually located 

307 
relatively to the master directory of a theory (see also 

308 
File.full_path). Potential INCOMPATIBILITY. 

309 

62498  310 

62354  311 
*** System *** 
312 

62840
d9744f41a4ec
renamed ISABELLE_BUILD_JAVA_OPTIONS to ISABELLE_TOOL_JAVA_OPTIONS;
wenzelm
parents:
62807
diff
changeset

313 
* Many Isabelle tools that require a Java runtime system refer to the 
d9744f41a4ec
renamed ISABELLE_BUILD_JAVA_OPTIONS to ISABELLE_TOOL_JAVA_OPTIONS;
wenzelm
parents:
62807
diff
changeset

314 
settings ISABELLE_TOOL_JAVA_OPTIONS32 / ISABELLE_TOOL_JAVA_OPTIONS64, 
d9744f41a4ec
renamed ISABELLE_BUILD_JAVA_OPTIONS to ISABELLE_TOOL_JAVA_OPTIONS;
wenzelm
parents:
62807
diff
changeset

315 
depending on the underlying platform. The settings for "isabelle build" 
d9744f41a4ec
renamed ISABELLE_BUILD_JAVA_OPTIONS to ISABELLE_TOOL_JAVA_OPTIONS;
wenzelm
parents:
62807
diff
changeset

316 
ISABELLE_BUILD_JAVA_OPTIONS32 / ISABELLE_BUILD_JAVA_OPTIONS64 have been 
d9744f41a4ec
renamed ISABELLE_BUILD_JAVA_OPTIONS to ISABELLE_TOOL_JAVA_OPTIONS;
wenzelm
parents:
62807
diff
changeset

317 
discontinued. Potential INCOMPATIBILITY. 
d9744f41a4ec
renamed ISABELLE_BUILD_JAVA_OPTIONS to ISABELLE_TOOL_JAVA_OPTIONS;
wenzelm
parents:
62807
diff
changeset

318 

62591  319 
* The Isabelle system environment always ensures that the main 
320 
executables are found within the shell search $PATH: "isabelle" and 

321 
"isabelle_scala_script". 

322 

323 
* The Isabelle ML process is now managed directly by Isabelle/Scala, and 

324 
shell scripts merely provide optional commandline access. In 

325 
particular: 

326 

327 
. Scala module ML_Process to connect to the raw ML process, 

328 
with interaction via stdin/stdout/stderr or in batch mode; 

329 
. commandline tool "isabelle console" as interactive wrapper; 

330 
. commandline tool "isabelle process" as batch mode wrapper. 

62588
cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

331 

cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

332 
* The executable "isabelle_process" has been discontinued. Tools and 
cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

333 
prover frontends should use ML_Process or Isabelle_Process in 
62591  334 
Isabelle/Scala. INCOMPATIBILITY. 
62588
cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

335 

cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

336 
* New commandline tool "isabelle process" supports ML evaluation of 
cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

337 
literal expressions (option e) or files (option f) in the context of a 
cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

338 
given heap image. Errors lead to premature exit of the ML process with 
cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

339 
return code 1. 
cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

340 

cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

341 
* Commandline tool "isabelle console" provides option r to help to 
cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

342 
bootstrapping Isabelle/Pure interactively. 
cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

343 

cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

344 
* Commandline tool "isabelle yxml" has been discontinued. 
cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

345 
INCOMPATIBILITY, use operations from the modules "XML" and "YXML" in 
cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

346 
Isabelle/ML or Isabelle/Scala. 
cd266473b81b
isabelle_process is superseded by "isabelle process" tool;
wenzelm
parents:
62579
diff
changeset

347 

62549
9498623b27f0
File.bash_string operations in ML as in Scala  exclusively for GNU bash, not perl and not user output;
wenzelm
parents:
62525
diff
changeset

348 
* File.bash_string, File.bash_path etc. represent Isabelle/ML and 
9498623b27f0
File.bash_string operations in ML as in Scala  exclusively for GNU bash, not perl and not user output;
wenzelm
parents:
62525
diff
changeset

349 
Isabelle/Scala strings authentically within GNU bash. This is useful to 
9498623b27f0
File.bash_string operations in ML as in Scala  exclusively for GNU bash, not perl and not user output;
wenzelm
parents:
62525
diff
changeset

350 
produce robust shell scripts under program control, without worrying 
9498623b27f0
File.bash_string operations in ML as in Scala  exclusively for GNU bash, not perl and not user output;
wenzelm
parents:
62525
diff
changeset

351 
about spaces or special characters. Note that user output works via 
9498623b27f0
File.bash_string operations in ML as in Scala  exclusively for GNU bash, not perl and not user output;
wenzelm
parents:
62525
diff
changeset

352 
Path.print (ML) or Path.toString (Scala). INCOMPATIBILITY, the old (and 
9498623b27f0
File.bash_string operations in ML as in Scala  exclusively for GNU bash, not perl and not user output;
wenzelm
parents:
62525
diff
changeset

353 
less versatile) operations File.shell_quote, File.shell_path etc. have 
9498623b27f0
File.bash_string operations in ML as in Scala  exclusively for GNU bash, not perl and not user output;
wenzelm
parents:
62525
diff
changeset

354 
been discontinued. 
9498623b27f0
File.bash_string operations in ML as in Scala  exclusively for GNU bash, not perl and not user output;
wenzelm
parents:
62525
diff
changeset

355 

62591  356 
* SML/NJ and old versions of Poly/ML are no longer supported. 
357 

62642  358 
* Poly/ML heaps now follow the hierarchy of sessions, and thus require 
359 
much less disk space. 

360 

62354  361 

362 

62031  363 
New in Isabelle2016 (February 2016) 
62016  364 
 
60138  365 

61337  366 
*** General *** 
367 

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

368 
* Eisbach is now based on Pure instead of HOL. Objectslogics may import 
e97452d79102
Eisbach works for other objectlogics, e.g. Eisbach_FOL.thy;
wenzelm
parents:
62163
diff
changeset

369 
either the theory ~~/src/HOL/Eisbach/Eisbach (for HOL etc.) or 
e97452d79102
Eisbach works for other objectlogics, e.g. Eisbach_FOL.thy;
wenzelm
parents:
62163
diff
changeset

370 
~~/src/HOL/Eisbach/Eisbach_Old_Appl_Syntax (for FOL, ZF etc.). Note that 
e97452d79102
Eisbach works for other objectlogics, e.g. Eisbach_FOL.thy;
wenzelm
parents:
62163
diff
changeset

371 
the HOLEisbach session located in ~~/src/HOL/Eisbach/ contains further 
e97452d79102
Eisbach works for other objectlogics, e.g. Eisbach_FOL.thy;
wenzelm
parents:
62163
diff
changeset

372 
examples that do require HOL. 
e97452d79102
Eisbach works for other objectlogics, e.g. Eisbach_FOL.thy;
wenzelm
parents:
62163
diff
changeset

373 

62157  374 
* Better resource usage on all platforms (Linux, Windows, Mac OS X) for 
375 
both Isabelle/ML and Isabelle/Scala. Slightly reduced heap space usage. 

376 

62017  377 
* Former "xsymbols" syntax with Isabelle symbols is used by default, 
378 
without any special print mode. Important ASCII replacement syntax 

379 
remains available under print mode "ASCII", but less important syntax 

380 
has been removed (see below). 

381 

62109  382 
* Support for more arrow symbols, with rendering in LaTeX and Isabelle 
383 
fonts: \<Lleftarrow> \<Rrightarrow> \<longlongleftarrow> \<longlongrightarrow> \<longlonglongleftarrow> \<longlonglongrightarrow>. 

62017  384 

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

385 
* Special notation \<struct> for the first implicit 'structure' in the 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

386 
context has been discontinued. Rare INCOMPATIBILITY, use explicit 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

387 
structure name instead, notably in indexed notation with blocksubscript 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

388 
(e.g. \<odot>\<^bsub>A\<^esub>). 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

389 

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

390 
* The glyph for \<diamond> in the IsabelleText font now corresponds better to its 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

391 
counterpart \<box> as quantifierlike symbol. A small diamond is available as 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

392 
\<diamondop>; the old symbol \<struct> loses this rendering and any special 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

393 
meaning. 
0046bacc5f5b
\<struct> loses its rendering and is superseded by \<diamondop>;
wenzelm
parents:
62107
diff
changeset

394 

62017  395 
* Syntax for formal comments " text" now also supports the symbolic 
396 
form "\<comment> text". Commandline tool "isabelle update_cartouches c" helps 

397 
to update old sources. 

398 

61337  399 
* Toplevel theorem statements have been simplified as follows: 
400 

401 
theorems ~> lemmas 

402 
schematic_lemma ~> schematic_goal 

403 
schematic_theorem ~> schematic_goal 

404 
schematic_corollary ~> schematic_goal 

405 

406 
Commandline tool "isabelle update_theorems" updates theory sources 

407 
accordingly. 

408 

61338  409 
* Toplevel theorem statement 'proposition' is another alias for 
410 
'theorem'. 

411 

62169  412 
* The old 'defs' command has been removed (legacy since Isabelle2014). 
413 
INCOMPATIBILITY, use regular 'definition' instead. Overloaded and/or 

414 
deferred definitions require a surrounding 'overloading' block. 

415 

61337  416 

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

417 
*** Prover IDE  Isabelle/Scala/jEdit *** 
f52b4b0c10c4
improved scheduling for urgent tasks, using farm of replacement threads (may lead to factor 2 overloading, but CPUs are usually hyperthreaded);
wenzelm
parents:
60595
diff
changeset

418 

60986  419 
* IDE support for the sourcelevel debugger of Poly/ML, to work with 
62253  420 
Isabelle/ML and official Standard ML. Option "ML_debugger" and commands 
421 
'ML_file_debug', 'ML_file_no_debug', 'SML_file_debug', 

422 
'SML_file_no_debug' control compilation of sources with or without 

423 
debugging information. The Debugger panel allows to set breakpoints (via 

424 
context menu), step through stopped threads, evaluate local ML 

425 
expressions etc. At least one Debugger view needs to be active to have 

426 
any effect on the running ML program. 

60984  427 

61803  428 
* The State panel manages explicit proof state output, with dynamic 
429 
autoupdate according to cursor movement. Alternatively, the jEdit 

430 
action "isabelle.updatestate" (shortcut S+ENTER) triggers manual 

431 
update. 

61729  432 

433 
* The Output panel no longer shows proof state output by default, to 

434 
avoid GUI overcrowding. INCOMPATIBILITY, use the State panel instead or 

435 
enable option "editor_output_state". 

61215  436 

61803  437 
* The text overview column (status of errors, warnings etc.) is updated 
438 
asynchronously, leading to much better editor reactivity. Moreover, the 

439 
full document node content is taken into account. The width of the 

440 
column is scaled according to the main text area font, for improved 

441 
visibility. 

442 

443 
* The main text area no longer changes its color hue in outdated 

444 
situations. The text overview column takes over the role to indicate 

445 
unfinished edits in the PIDE pipeline. This avoids flashing text display 

446 
due to adhoc updates by auxiliary GUI components, such as the State 

447 
panel. 

448 

62254
81cbea2babd9
tuned NEWS: longrunning tasks can still prevent urgent tasks from being started, due to start_execution pri = 0;
wenzelm
parents:
62253
diff
changeset

449 
* Slightly improved scheduling for urgent print tasks (e.g. command 
81cbea2babd9
tuned NEWS: longrunning tasks can still prevent urgent tasks from being started, due to start_execution pri = 0;
wenzelm
parents:
62253
diff
changeset

450 
state output, interactive queries) wrt. longrunning background tasks. 
62017  451 

452 
* Completion of symbols via prefix of \<name> or \<^name> or \name is 

453 
always possible, independently of the language context. It is never 

454 
implicit: a popup will show up unconditionally. 

455 

456 
* Additional abbreviations for syntactic completion may be specified in 

457 
$ISABELLE_HOME/etc/abbrevs and $ISABELLE_HOME_USER/etc/abbrevs, with 

458 
support for simple templates using ASCII 007 (bell) as placeholder. 

459 

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

460 
* Symbols \<oplus>, \<Oplus>, \<otimes>, \<Otimes>, \<odot>, \<Odot>, \<ominus>, \<oslash> no longer provide abbreviations for 
7cc9d7b822ae
discontinued irregular abbrevs: ".o" counts as word, "+o", "*o", "o" are occasionally used as ASCII notation, "*o" is in conflict with "(*o" in comments;
wenzelm
parents:
62231
diff
changeset

461 
completion like "+o", "*o", ".o" etc.  due to conflicts with other 
7cc9d7b822ae
discontinued irregular abbrevs: ".o" counts as word, "+o", "*o", "o" are occasionally used as ASCII notation, "*o" is in conflict with "(*o" in comments;
wenzelm
parents:
62231
diff
changeset

462 
ASCII syntax. INCOMPATIBILITY, use plain backslashcompletion or define 
7cc9d7b822ae
discontinued irregular abbrevs: ".o" counts as word, "+o", "*o", "o" are occasionally used as ASCII notation, "*o" is in conflict with "(*o" in comments;
wenzelm
parents:
62231
diff
changeset

463 
suitable abbreviations in $ISABELLE_HOME_USER/etc/abbrevs. 
7cc9d7b822ae
discontinued irregular abbrevs: ".o" counts as word, "+o", "*o", "o" are occasionally used as ASCII notation, "*o" is in conflict with "(*o" in comments;
wenzelm
parents:
62231
diff
changeset

464 

61483  465 
* Action "isabelleemph" (with keyboard shortcut C+e LEFT) controls 
466 
emphasized text style; the effect is visible in document output, not in 

467 
the editor. 

468 

469 
* Action "isabellereset" now uses keyboard shortcut C+e BACK_SPACE, 

470 
instead of former C+e LEFT. 

471 

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

472 
* The commandline tool "isabelle jedit" and the isabelle.Main 
62027  473 
application wrapper treat the default $USER_HOME/Scratch.thy more 
61512
933463440449
more uniform commandline for "isabelle jedit" and the isabelle.Main app wrapper;
wenzelm
parents:
61501
diff
changeset

474 
uniformly, and allow the dummy file argument ":" to open an empty buffer 
933463440449
more uniform commandline for "isabelle jedit" and the isabelle.Main app wrapper;
wenzelm
parents:
61501
diff
changeset

475 
instead. 
933463440449
more uniform commandline for "isabelle jedit" and the isabelle.Main app wrapper;
wenzelm
parents:
61501
diff
changeset

476 

62017  477 
* New commandline tool "isabelle jedit_client" allows to connect to an 
478 
already running Isabelle/jEdit process. This achieves the effect of 

479 
singleinstance applications seen on common GUI desktops. 

480 

61529
82fc5a6231a2
back to traditional Metal as default, and thus evade current problems with Nimbus scrollbar slider;
wenzelm
parents:
61520
diff
changeset

481 
* The default lookandfeel for Linux is the traditional "Metal", which 
82fc5a6231a2
back to traditional Metal as default, and thus evade current problems with Nimbus scrollbar slider;
wenzelm
parents:
61520
diff
changeset

482 
works better with GUI scaling for very highresolution displays (e.g. 
82fc5a6231a2
back to traditional Metal as default, and thus evade current problems with Nimbus scrollbar slider;
wenzelm
parents:
61520
diff
changeset

483 
4K). Moreover, it is generally more robust than "Nimbus". 
82fc5a6231a2
back to traditional Metal as default, and thus evade current problems with Nimbus scrollbar slider;
wenzelm
parents:
61520
diff
changeset

484 

62163  485 
* Update to jedit5.3.0, with improved GUI scaling and support of 
486 
highresolution displays (e.g. 4K). 

487 

62034  488 
* The main Isabelle executable is managed as singleinstance Desktop 
489 
application uniformly on all platforms: Linux, Windows, Mac OS X. 

490 

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

491 

61405  492 
*** Document preparation *** 
493 

62017  494 
* Commands 'paragraph' and 'subparagraph' provide additional section 
495 
headings. Thus there are 6 levels of standard headings, as in HTML. 

496 

497 
* Command 'text_raw' has been clarified: input text is processed as in 

498 
'text' (with antiquotations and control symbols). The key difference is 

499 
the lack of the surrounding isabelle markup environment in output. 

500 

501 
* Text is structured in paragraphs and nested lists, using notation that 

502 
is similar to Markdown. The control symbols for list items are as 

503 
follows: 

504 

505 
\<^item> itemize 

506 
\<^enum> enumerate 

507 
\<^descr> description 

508 

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

509 
* There is a new short form for antiquotations with a single argument 
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

510 
that is a cartouche: \<^name>\<open>...\<close> is equivalent to @{name \<open>...\<close>} and 
61595  511 
\<open>...\<close> without control symbol is equivalent to @{cartouche \<open>...\<close>}. 
512 
\<^name> without following cartouche is equivalent to @{name}. The 

61501  513 
standard Isabelle fonts provide glyphs to render important control 
514 
symbols, e.g. "\<^verbatim>", "\<^emph>", "\<^bold>". 

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

515 

61595  516 
* Antiquotations @{noindent}, @{smallskip}, @{medskip}, @{bigskip} with 
517 
corresponding control symbols \<^noindent>, \<^smallskip>, \<^medskip>, \<^bigskip> specify spacing formally, using 

518 
standard LaTeX macros of the same names. 

519 

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

520 
* Antiquotation @{cartouche} in Isabelle/Pure is the same as @{text}. 
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

521 
Consequently, \<open>...\<close> without any decoration prints literal quasiformal 
61492  522 
text. Commandline tool "isabelle update_cartouches t" helps to update 
523 
old sources, by approximative patching of the content of string and 

524 
cartouche tokens seen in theory sources. 

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

525 

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

526 
* The @{text} antiquotation now ignores the antiquotation option 
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

527 
"source". The given text content is output unconditionally, without any 
97261e6c1d42
another antiquotation short form: undecorated cartouche as alias for @{text};
wenzelm
parents:
61488
diff
changeset

528 
surrounding quotes etc. Subtle INCOMPATIBILITY, put quotes into the 
61494  529 
argument where they are really intended, e.g. @{text \<open>"foo"\<close>}. Initial 
530 
or terminal spaces are ignored. 

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

531 

62017  532 
* Antiquotations @{emph} and @{bold} output LaTeX source recursively, 
533 
adding appropriate text style markup. These may be used in the short 

534 
form \<^emph>\<open>...\<close> and \<^bold>\<open>...\<close>. 

535 

536 
* Document antiquotation @{footnote} outputs LaTeX source recursively, 

537 
marked as \footnote{}. This may be used in the short form \<^footnote>\<open>...\<close>. 

538 

539 
* Antiquotation @{verbatim [display]} supports option "indent". 

540 

541 
* Antiquotation @{theory_text} prints uninterpreted theory source text 

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

542 
(Isar outer syntax with command keywords etc.). This may be used in the 
25f4a9cd8b68
tuned markup, e.g. relevant for Rendering.tooltip;
wenzelm
parents:
62209
diff
changeset

543 
short form \<^theory_text>\<open>...\<close>. @{theory_text [display]} supports option "indent". 
62017  544 

545 
* Antiquotation @{doc ENTRY} provides a reference to the given 

546 
documentation, with a hyperlink in the Prover IDE. 

547 

548 
* Antiquotations @{command}, @{method}, @{attribute} print checked 

549 
entities of the Isar language. 

550 

61471  551 
* HTML presentation uses the standard IsabelleText font and Unicode 
552 
rendering of Isabelle symbols like Isabelle/Scala/jEdit. The former 

61488  553 
print mode "HTML" loses its special meaning. 
61471  554 

61405  555 

60406  556 
*** Isar *** 
557 

62205  558 
* Local goals ('have', 'show', 'hence', 'thus') allow structured rule 
559 
statements like fixes/assumes/shows in theorem specifications, but the 

560 
notation is postfix with keywords 'if' (or 'when') and 'for'. For 

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

561 
example: 
60414  562 

563 
have result: "C x y" 

564 
if "A x" and "B y" 

565 
for x :: 'a and y :: 'a 

566 
<proof> 

567 

60449  568 
The local assumptions are bound to the name "that". The result is 
569 
exported from context of the statement as usual. The above roughly 

60414  570 
corresponds to a raw proof block like this: 
571 

572 
{ 

573 
fix x :: 'a and y :: 'a 

60449  574 
assume that: "A x" "B y" 
60414  575 
have "C x y" <proof> 
576 
} 

577 
note result = this 

60406  578 

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

579 
The keyword 'when' may be used instead of 'if', to indicate 'presume' 
51a6997b1384
support 'when' statement, which corresponds to 'presume';
wenzelm
parents:
60554
diff
changeset

580 
instead of 'assume' above. 
51a6997b1384
support 'when' statement, which corresponds to 'presume';
wenzelm
parents:
60554
diff
changeset

581 

61733  582 
* Assumptions ('assume', 'presume') allow structured rule statements 
583 
using 'if' and 'for', similar to 'have' etc. above. For example: 

61658  584 

585 
assume result: "C x y" 

586 
if "A x" and "B y" 

587 
for x :: 'a and y :: 'a 

588 

589 
This assumes "\<And>x y::'a. A x \<Longrightarrow> B y \<Longrightarrow> C x y" and produces a general 

590 
result as usual: "A ?x \<Longrightarrow> B ?y \<Longrightarrow> C ?x ?y". 

591 

592 
Vacuous quantification in assumptions is omitted, i.e. a forcontext 

593 
only effects propositions according to actual use of variables. For 

594 
example: 

595 

596 
assume "A x" and "B y" for x and y 

597 

598 
is equivalent to: 

599 

600 
assume "\<And>x. A x" and "\<And>y. B y" 

601 

60595  602 
* The meaning of 'show' with Pure rule statements has changed: premises 
603 
are treated in the sense of 'assume', instead of 'presume'. This means, 

62205  604 
a goal like "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" can be solved completely as 
605 
follows: 

60595  606 

607 
show "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" 

608 

609 
or: 

610 

611 
show "C x" if "A x" "B x" for x 

612 

613 
Rare INCOMPATIBILITY, the old behaviour may be recovered as follows: 

614 

615 
show "C x" when "A x" "B x" for x 

616 

60459  617 
* New command 'consider' states rules for generalized elimination and 
618 
case splitting. This is like a toplevel statement "theorem obtains" used 

619 
within a proof body; or like a multibranch 'obtain' without activation 

620 
of the local context elements yet. 

621 

60455  622 
* Proof method "cases" allows to specify the rule as first entry of 
623 
chained facts. This is particularly useful with 'consider': 

624 

625 
consider (a) A  (b) B  (c) C <proof> 

626 
then have something 

627 
proof cases 

628 
case a 

629 
then show ?thesis <proof> 

630 
next 

631 
case b 

632 
then show ?thesis <proof> 

633 
next 

634 
case c 

635 
then show ?thesis <proof> 

636 
qed 

637 

60565  638 
* Command 'case' allows fact name and attribute specification like this: 
639 

640 
case a: (c xs) 

641 
case a [attributes]: (c xs) 

642 

643 
Facts that are introduced by invoking the case context are uniformly 

644 
qualified by "a"; the same name is used for the cumulative fact. The old 

645 
form "case (c xs) [attributes]" is no longer supported. Rare 

646 
INCOMPATIBILITY, need to adapt uses of case facts in exotic situations, 

647 
and always put attributes in front. 

648 

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

649 
* The standard proof method of commands 'proof' and '..' is now called 
4c79543cc376
renamed "default" to "standard", to make semantically clear what it is;
wenzelm
parents:
60617
diff
changeset

650 
"standard" to make semantically clear what it is; the old name "default" 
4c79543cc376
renamed "default" to "standard", to make semantically clear what it is;
wenzelm
parents:
60617
diff
changeset

651 
is still available as legacy for some time. Documentation now explains 
4c79543cc376
renamed "default" to "standard", to make semantically clear what it is;
wenzelm
parents:
60617
diff
changeset

652 
'..' more accurately as "by standard" instead of "by rule". 
4c79543cc376
renamed "default" to "standard", to make semantically clear what it is;
wenzelm
parents:
60617
diff
changeset

653 

62017  654 
* Nesting of Isar goal structure has been clarified: the context after 
655 
the initial backwards refinement is retained for the whole proof, within 

656 
all its context sections (as indicated via 'next'). This is e.g. 

657 
relevant for 'using', 'including', 'supply': 

658 

659 
have "A \<and> A" if a: A for A 

660 
supply [simp] = a 

661 
proof 

662 
show A by simp 

663 
next 

664 
show A by simp 

665 
qed 

666 

667 
* Command 'obtain' binds term abbreviations (via 'is' patterns) in the 

668 
proof body as well, abstracted over relevant parameters. 

669 

670 
* Improved typeinference for theorem statement 'obtains': separate 

671 
parameter scope for of each clause. 

672 

673 
* Term abbreviations via 'is' patterns also work for schematic 

674 
statements: result is abstracted over unknowns. 

675 

60631  676 
* Command 'subgoal' allows to impose some structure on backward 
677 
refinements, to avoid proof scripts degenerating into long of 'apply' 

678 
sequences. Further explanations and examples are given in the isarref 

679 
manual. 

680 

62017  681 
* Command 'supply' supports fact definitions during goal refinement 
682 
('apply' scripts). 

683 

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

684 
* Proof method "goal_cases" turns the current subgoals into cases within 
5976fe402824
renamed method "goals" to "goal_cases" to emphasize its meaning;
wenzelm
parents:
61158
diff
changeset

685 
the context; the conclusion is bound to variable ?case in each case. For 
5976fe402824
renamed method "goals" to "goal_cases" to emphasize its meaning;
wenzelm
parents:
61158
diff
changeset

686 
example: 
60617  687 

688 
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" 

60622  689 
and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z" 
61166
5976fe402824
renamed method "goals" to "goal_cases" to emphasize its meaning;
wenzelm
parents:
61158
diff
changeset

690 
proof goal_cases 
60622  691 
case (1 x) 
692 
then show ?case using \<open>A x\<close> \<open>B x\<close> sorry 

693 
next 

694 
case (2 y z) 

695 
then show ?case using \<open>U y\<close> \<open>V z\<close> sorry 

696 
qed 

697 

698 
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" 

699 
and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z" 

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

700 
proof goal_cases 
60617  701 
case prems: 1 
702 
then show ?case using prems sorry 

703 
next 

704 
case prems: 2 

705 
then show ?case using prems sorry 

706 
qed 

60578  707 

60581  708 
* The undocumented feature of implicit cases goal1, goal2, goal3, etc. 
60617  709 
is marked as legacy, and will be removed eventually. The proof method 
710 
"goals" achieves a similar effect within regular Isar; often it can be 

711 
done more adequately by other means (e.g. 'consider'). 

60581  712 

62017  713 
* The vacuous fact "TERM x" may be established "by fact" or as `TERM x` 
714 
as well, not just "by this" or "." as before. 

60551  715 

60554  716 
* Method "sleep" succeeds after a realtime delay (in seconds). This is 
717 
occasionally useful for demonstration and testing purposes. 

718 

60406  719 

60331  720 
*** Pure *** 
721 

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

722 
* Qualifiers in locale expressions default to mandatory ('!') regardless 
6d5213bd9709
uniform mandatory qualifier for all locale expressions, including 'statespace' parent;
wenzelm
parents:
61604
diff
changeset

723 
of the command. Previously, for 'locale' and 'sublocale' the default was 
6d5213bd9709
uniform mandatory qualifier for all locale expressions, including 'statespace' parent;
wenzelm
parents:
61604
diff
changeset

724 
optional ('?'). The old synatx '!' has been discontinued. 
6d5213bd9709
uniform mandatory qualifier for all locale expressions, including 'statespace' parent;
wenzelm
parents:
61604
diff
changeset

725 
INCOMPATIBILITY, remove '!' and add '?' as required. 
61565
352c73a689da
Qualifiers in locale expressions default to mandatory regardless of the command.
ballarin
parents:
61551
diff
changeset

726 

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

727 
* Keyword 'rewrites' identifies rewrite morphisms in interpretation 
62017  728 
commands. Previously, the keyword was 'where'. INCOMPATIBILITY. 
61566
c3d6e570ccef
Keyword 'rewrites' identifies rewrite morphisms.
ballarin
parents:
61565
diff
changeset

729 

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

730 
* More gentle suppression of syntax along locale morphisms while 
62017  731 
printing terms. Previously 'abbreviation' and 'notation' declarations 
732 
would be suppressed for morphisms except term identity. Now 

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

733 
'abbreviation' is also kept for morphims that only change the involved 
62017  734 
parameters, and only 'notation' is suppressed. This can be of great help 
735 
when working with complex locale hierarchies, because proof states are 

736 
displayed much more succinctly. It also means that only notation needs 

737 
to be redeclared if desired, as illustrated by this example: 

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

738 

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

739 
locale struct = fixes composition :: "'a => 'a => 'a" (infixl "\<cdot>" 65) 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

740 
begin 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

741 
definition derived (infixl "\<odot>" 65) where ... 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

742 
end 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

743 

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

744 
locale morphism = 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

745 
left: struct composition + right: struct composition' 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

746 
for composition (infix "\<cdot>" 65) and composition' (infix "\<cdot>''" 65) 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

747 
begin 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

748 
notation right.derived ("\<odot>''") 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

749 
end 
e89cfc004f18
Refine the supression of abbreviations for morphisms that are not identities.
ballarin
parents:
61694
diff
changeset

750 

61895  751 
* Command 'global_interpretation' issues interpretations into global 
752 
theories, with optional rewrite definitions following keyword 'defines'. 

753 

754 
* Command 'sublocale' accepts optional rewrite definitions after keyword 

61675  755 
'defines'. 
756 

61895  757 
* Command 'permanent_interpretation' has been discontinued. Use 
758 
'global_interpretation' or 'sublocale' instead. INCOMPATIBILITY. 

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

759 

61252  760 
* Command 'print_definitions' prints dependencies of definitional 
761 
specifications. This functionality used to be part of 'print_theory'. 

762 

60331  763 
* Configuration option rule_insts_schematic has been discontinued 
62017  764 
(intermediate legacy feature in Isabelle2015). INCOMPATIBILITY. 
60331  765 

62205  766 
* Abbreviations in type classes now carry proper sort constraint. Rare 
767 
INCOMPATIBILITY in situations where the previous misbehaviour has been 

768 
exploited. 

60347  769 

770 
* Refinement of userspace type system in type classes: pseudolocal 

62205  771 
operations behave more similar to abbreviations. Potential 
60347  772 
INCOMPATIBILITY in exotic situations. 
773 

774 

60171  775 
*** HOL *** 
776 

62017  777 
* The 'typedef' command has been upgraded from a partially checked 
778 
"axiomatization", to a full definitional specification that takes the 

779 
global collection of overloaded constant / type definitions into 

780 
account. Type definitions with open dependencies on overloaded 

781 
definitions need to be specified as "typedef (overloaded)". This 

782 
provides extra robustness in theory construction. Rare INCOMPATIBILITY. 

783 

784 
* Qualification of various formal entities in the libraries is done more 

785 
uniformly via "context begin qualified definition ... end" instead of 

786 
oldstyle "hide_const (open) ...". Consequently, both the defined 

787 
constant and its defining fact become qualified, e.g. Option.is_none and 

788 
Option.is_none_def. Occasional INCOMPATIBILITY in applications. 

789 

790 
* Some old and rarely used ASCII replacement syntax has been removed. 

791 
INCOMPATIBILITY, standard syntax with symbols should be used instead. 

792 
The subsequent commands help to reproduce the old forms, e.g. to 

793 
simplify porting old theories: 

794 

795 
notation iff (infixr "<>" 25) 

796 

797 
notation Times (infixr "<*>" 80) 

798 

799 
type_notation Map.map (infixr "~=>" 0) 

800 
notation Map.map_comp (infixl "o'_m" 55) 

801 

802 
type_notation FinFun.finfun ("(_ =>f /_)" [22, 21] 21) 

803 

804 
notation FuncSet.funcset (infixr ">" 60) 

805 
notation FuncSet.extensional_funcset (infixr ">\<^sub>E" 60) 

806 

807 
notation Omega_Words_Fun.conc (infixr "conc" 65) 

808 

809 
notation Preorder.equiv ("op ~~") 

810 
and Preorder.equiv ("(_/ ~~ _)" [51, 51] 50) 

811 

812 
notation (in topological_space) tendsto (infixr ">" 55) 

813 
notation (in topological_space) LIMSEQ ("((_)/ > (_))" [60, 60] 60) 

814 
notation LIM ("((_)/  (_)/ > (_))" [60, 0, 60] 60) 

815 

816 
notation NSA.approx (infixl "@=" 50) 

817 
notation NSLIMSEQ ("((_)/ NS> (_))" [60, 60] 60) 

818 
notation NSLIM ("((_)/  (_)/ NS> (_))" [60, 0, 60] 60) 

819 

820 
* The alternative notation "\<Colon>" for type and sort constraints has been 

821 
removed: in LaTeX document output it looks the same as "::". 

822 
INCOMPATIBILITY, use plain "::" instead. 

823 

824 
* Commands 'inductive' and 'inductive_set' work better when names for 

825 
intro rules are omitted: the "cases" and "induct" rules no longer 

826 
declare empty case_names, but no case_names at all. This allows to use 

827 
numbered cases in proofs, without requiring method "goal_cases". 

828 

829 
* Inductive definitions ('inductive', 'coinductive', etc.) expose 

830 
lowlevel facts of the internal construction only if the option 

62093  831 
"inductive_internals" is enabled. This refers to the internal predicate 
62017  832 
definition and its monotonicity result. Rare INCOMPATIBILITY. 
833 

834 
* Recursive function definitions ('fun', 'function', 'partial_function') 

835 
expose lowlevel facts of the internal construction only if the option 

62205  836 
"function_internals" is enabled. Its internal inductive definition is 
837 
also subject to "inductive_internals". Rare INCOMPATIBILITY. 

62093  838 

839 
* BNF datatypes ('datatype', 'codatatype', etc.) expose lowlevel facts 

840 
of the internal construction only if the option "bnf_internals" is 

841 
enabled. This supersedes the former option "bnf_note_all". Rare 

842 
INCOMPATIBILITY. 

62017  843 

844 
* Combinator to represent case distinction on products is named 

845 
"case_prod", uniformly, discontinuing any input aliasses. Very popular 

846 
theorem aliasses have been retained. 

847 

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

848 
Consolidated facts: 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

849 
PairE ~> prod.exhaust 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

850 
Pair_eq ~> prod.inject 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

851 
pair_collapse ~> prod.collapse 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

852 
Pair_fst_snd_eq ~> prod_eq_iff 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

853 
split_twice ~> prod.case_distrib 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

854 
split_weak_cong ~> prod.case_cong_weak 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

855 
split_split ~> prod.split 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

856 
split_split_asm ~> prod.split_asm 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

857 
splitI ~> case_prodI 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

858 
splitD ~> case_prodD 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

859 
splitI2 ~> case_prodI2 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

860 
splitI2' ~> case_prodI2' 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

861 
splitE ~> case_prodE 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

862 
splitE' ~> case_prodE' 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

863 
split_pair ~> case_prod_Pair 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

864 
split_eta ~> case_prod_eta 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

865 
split_comp ~> case_prod_comp 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

866 
mem_splitI ~> mem_case_prodI 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

867 
mem_splitI2 ~> mem_case_prodI2 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

868 
mem_splitE ~> mem_case_prodE 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

869 
The_split ~> The_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

870 
cond_split_eta ~> cond_case_prod_eta 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

871 
Collect_split_in_rel_leE ~> Collect_case_prod_in_rel_leE 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

872 
Collect_split_in_rel_leI ~> Collect_case_prod_in_rel_leI 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

873 
in_rel_Collect_split_eq ~> in_rel_Collect_case_prod_eq 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

874 
Collect_split_Grp_eqD ~> Collect_case_prod_Grp_eqD 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

875 
Collect_split_Grp_inD ~> Collect_case_prod_Grp_in 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

876 
Domain_Collect_split ~> Domain_Collect_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

877 
Image_Collect_split ~> Image_Collect_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

878 
Range_Collect_split ~> Range_Collect_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

879 
Eps_split ~> Eps_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

880 
Eps_split_eq ~> Eps_case_prod_eq 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

881 
split_rsp ~> case_prod_rsp 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

882 
curry_split ~> curry_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

883 
split_curry ~> case_prod_curry 
62017  884 

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

885 
Changes in structure HOLogic: 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

886 
split_const ~> case_prod_const 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

887 
mk_split ~> mk_case_prod 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

888 
mk_psplits ~> mk_ptupleabs 
c3658c18b7bc
prod_case as canonical name for product type eliminator
haftmann
parents:
61405
diff
changeset

889 
strip_psplits ~> strip_ptupleabs 
62017  890 

891 
INCOMPATIBILITY. 

892 

893 
* The coercions to type 'real' have been reorganised. The function 

894 
'real' is no longer overloaded, but has type 'nat => real' and 

895 
abbreviates of_nat for that type. Also 'real_of_int :: int => real' 

896 
abbreviates of_int for that type. Other overloaded instances of 'real' 

897 
have been replaced by 'real_of_ereal' and 'real_of_float'. 

898 

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

899 
Consolidated facts (among others): 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

900 
real_of_nat_le_iff > of_nat_le_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

901 
real_of_nat_numeral of_nat_numeral 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

902 
real_of_int_zero of_int_0 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

903 
real_of_nat_zero of_nat_0 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

904 
real_of_one of_int_1 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

905 
real_of_int_add of_int_add 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

906 
real_of_nat_add of_nat_add 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

907 
real_of_int_diff of_int_diff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

908 
real_of_nat_diff of_nat_diff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

909 
floor_subtract floor_diff_of_int 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

910 
real_of_int_inject of_int_eq_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

911 
real_of_int_gt_zero_cancel_iff of_int_0_less_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

912 
real_of_int_ge_zero_cancel_iff of_int_0_le_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

913 
real_of_nat_ge_zero of_nat_0_le_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

914 
real_of_int_ceiling_ge le_of_int_ceiling 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

915 
ceiling_less_eq ceiling_less_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

916 
ceiling_le_eq ceiling_le_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

917 
less_floor_eq less_floor_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

918 
floor_less_eq floor_less_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

919 
floor_divide_eq_div floor_divide_of_int_eq 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

920 
real_of_int_zero_cancel of_nat_eq_0_iff 
6571c78c9667
Removed some legacy theorems; minor adjustments to simplification rules; new material on homotopic paths
paulson <lp15@cam.ac.uk>
parents:
61685
diff
changeset

921 
ceiling_real_of_int ceiling_of_int 
62017  922 

923 
INCOMPATIBILITY. 

61143  924 

60841  925 
* Theory Map: lemma map_of_is_SomeD was a clone of map_of_SomeD and has 
926 
been removed. INCOMPATIBILITY. 

927 

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

928 
* Quickcheck setup for finite sets. 
3ba16d28449d
Quickcheck setup for finite sets
Lars Hupel <lars.hupel@mytum.de>
parents:
60707
diff
changeset

929 

60171  930 
* Discontinued simp_legacy_precond. Potential INCOMPATIBILITY. 
60138  931 

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

932 
* Sledgehammer: 
61318  933 
 The MaSh relevance filter has been sped up. 
60306
6b7c64ab8bd2
made Auto Sledgehammer behave more like the real thing
blanchet
parents:
60301
diff
changeset

934 
 Proof reconstruction has been improved, to minimize the incidence of 
6b7c64ab8bd2
made Auto Sledgehammer behave more like the real thing
blanchet
parents:
60301
diff
changeset

935 
cases where Sledgehammer gives a proof that does not work. 
6b7c64ab8bd2
made Auto Sledgehammer behave more like the real thing
blanchet
parents:
60301
diff
changeset

936 
 Auto Sledgehammer now minimizes and preplays the results. 
61030  937 
 Handle Vampire 4.0 proof output without raising exception. 
61043  938 
 Eliminated "MASH" environment variable. Use the "MaSh" option in 
939 
Isabelle/jEdit instead. INCOMPATIBILITY. 

61317  940 
 Eliminated obsolete "blocking" option and related subcommands. 
60306
6b7c64ab8bd2
made Auto Sledgehammer behave more like the real thing
blanchet
parents:
60301
diff
changeset

941 

60310  942 
* Nitpick: 
61325
1cfc476198c9
avoid too aggressive optimization of 'finite' predicate
blanchet
parents:
61324
diff
changeset

943 
 Fixed soundness bug in translation of "finite" predicate. 
61324
d4ec7594f558
avoid unsound simplification of (C (s x)) when s is a selector but not C's
blanchet
parents:
61318
diff
changeset

944 
 Fixed soundness bug in "destroy_constrs" optimization. 
62080  945 
 Fixed soundness bug in translation of "rat" type. 
60310  946 
 Removed "check_potential" and "check_genuine" options. 
61317  947 
 Eliminated obsolete "blocking" option. 
60310  948 

62027  949 
* (Co)datatype package: 
61345  950 
 New commands "lift_bnf" and "copy_bnf" for lifting (copying) a BNF 
951 
structure on the raw type to an abstract type defined using typedef. 

952 
 Always generate "case_transfer" theorem. 

62235  953 
 For mutual types, generate slightly stronger "rel_induct", 
954 
"rel_coinduct", and "coinduct" theorems. INCOMPATIBLITY. 

61551  955 
 Allow discriminators and selectors with the same name as the type 
956 
being defined. 

957 
 Avoid various internal name clashes (e.g., 'datatype f = f'). 

60920  958 

62098  959 
* Transfer: new methods for interactive debugging of 'transfer' and 
960 
'transfer_prover': 'transfer_start', 'transfer_step', 'transfer_end', 

961 
'transfer_prover_start' and 'transfer_prover_end'. 

61370  962 

62118  963 
* New diagnostic command print_record for displaying record definitions. 
964 

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

965 
* Division on integers is bootstrapped directly from division on 
62017  966 
naturals and uses generic numeral algorithm for computations. Slight 
967 
INCOMPATIBILITY, simproc numeral_divmod replaces and generalizes former 

968 
simprocs binary_int_div and binary_int_mod 

969 

970 
* Tightened specification of class semiring_no_zero_divisors. Minor 

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

971 
INCOMPATIBILITY. 
0826b7025d07
generalized some theorems about integral domains and moved to HOL theories
haftmann
parents:
60515
diff
changeset

972 

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

973 
* Class algebraic_semidom introduces common algebraic notions of 
62017  974 
integral (semi)domains, particularly units. Although logically subsumed 
975 
by fields, is is not a super class of these in order not to burden 

976 
fields with notions that are trivial there. 

977 

978 
* Class normalization_semidom specifies canonical representants for 

979 
equivalence classes of associated elements in an integral (semi)domain. 

980 
This formalizes associated elements as well. 

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

981 

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

982 
* Abstract specification of gcd/lcm operations in classes semiring_gcd, 
62017  983 
semiring_Gcd, semiring_Lcd. Minor INCOMPATIBILITY: facts gcd_nat.commute 
984 
and gcd_int.commute are subsumed by gcd.commute, as well as 

985 
gcd_nat.assoc and gcd_int.assoc by gcd.assoc. 

986 

987 
* Former constants Fields.divide (_ / _) and Divides.div (_ div _) are 

988 
logically unified to Rings.divide in syntactic type class Rings.divide, 

989 
with infix syntax (_ div _). Infix syntax (_ / _) for field division is 

990 
added later as abbreviation in class Fields.inverse. INCOMPATIBILITY, 

991 
instantiations must refer to Rings.divide rather than the former 

992 
separate constants, hence infix syntax (_ / _) is usually not available 

993 
during instantiation. 

994 

995 
* New cancellation simprocs for boolean algebras to cancel complementary 

996 
terms for sup and inf. For example, "sup x (sup y ( x))" simplifies to 

997 
"top". INCOMPATIBILITY. 

61629
90f54d9e63f2
cancel complementary terms as arguments to sup/inf in boolean algebras
Andreas Lochbihler
parents:
61623
diff
changeset

998 

62101  999 
* Class uniform_space introduces uniform spaces btw topological spaces 
1000 
and metric spaces. Minor INCOMPATIBILITY: open_<type>_def needs to be 

62205  1001 
introduced in the form of an uniformity. Some constants are more general 
1002 
now, it may be necessary to add type class constraints. 

62101  1003 

1004 
open_real_def \<leadsto> open_dist 

1005 
open_complex_def \<leadsto> open_dist 

1006 

62026  1007 
* Library/Monad_Syntax: notation uses symbols \<bind> and \<then>. INCOMPATIBILITY. 
1008 

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

1009 
* Library/Multiset: 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

1010 
 Renamed multiset inclusion operators: 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

1011 
< ~> <# 
62208
ad43b3ab06e4
added 'supset' variants for new '<#' etc. symbols on multisets
blanchet
parents:
62205
diff
changeset

1012 
> ~> ># 
60397
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

1013 
<= ~> <=# 
62208
ad43b3ab06e4
added 'supset' variants for new '<#' etc. symbols on multisets
blanchet
parents:
62205
diff
changeset

1014 
>= ~> >=# 
60397
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

1015 
\<le> ~> \<le># 
62208
ad43b3ab06e4
added 'supset' variants for new '<#' etc. symbols on multisets
blanchet
parents:
62205
diff
changeset

1016 
\<ge> ~> \<ge># 
60397
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

1017 
INCOMPATIBILITY. 
62209  1018 
 Added multiset inclusion operator syntax: 
1019 
\<subset># 

1020 
\<subseteq># 

1021 
\<supset># 

1022 
\<supseteq># 

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

1023 
 "'a multiset" is no longer an instance of the "order", 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

1024 
"ordered_ab_semigroup_add_imp_le", "ordered_cancel_comm_monoid_diff", 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

1025 
"semilattice_inf", and "semilattice_sup" type classes. The theorems 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

1026 
previously provided by these type classes (directly or indirectly) 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

1027 
are now available through the "subset_mset" interpretation 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

1028 
(e.g. add_mono ~> subset_mset.add_mono). 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

1029 
INCOMPATIBILITY. 
60497  1030 
 Renamed conversions: 
60515  1031 
multiset_of ~> mset 
1032 
multiset_of_set ~> mset_set 

60497  1033 
set_of ~> set_mset 
1034 
INCOMPATIBILITY 

60398  1035 
 Renamed lemmas: 
1036 
mset_le_def ~> subseteq_mset_def 

1037 
mset_less_def ~> subset_mset_def 

60400  1038 
less_eq_multiset.rep_eq ~> subseteq_mset_def 
1039 
INCOMPATIBILITY 

1040 
 Removed lemmas generated by lift_definition: 

62235  1041 
less_eq_multiset.abs_eq, less_eq_multiset.rsp, 
1042 
less_eq_multiset.transfer, less_eq_multiset_def 

60400  1043 
INCOMPATIBILITY 
60006  1044 

62017  1045 
* Library/Omega_Words_Fun: Infinite words modeled as functions nat \<Rightarrow> 'a. 
1046 

1047 
* Library/Bourbaki_Witt_Fixpoint: Added formalisation of the 

1048 
BourbakiWitt fixpoint theorem for increasing functions in 

1049 
chaincomplete partial orders. 

1050 

1051 
* Library/Old_Recdef: discontinued obsolete 'defer_recdef' command. 

1052 
Minor INCOMPATIBILITY, use 'function' instead. 

1053 

62064  1054 
* Library/Periodic_Fun: a locale that provides convenient lemmas for 
1055 
periodic functions. 

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

1056 

62098  1057 
* Library/Formal_Power_Series: proper definition of division (with 
1058 
remainder) for formal power series; instances for Euclidean Ring and 

1059 
GCD. 

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

1060 

62084  1061 
* HOLImperative_HOL: obsolete theory Legacy_Mrec has been removed. 
1062 

1063 
* HOLStatespace: command 'statespace' uses mandatory qualifier for 

1064 
import of parent, as for general 'locale' expressions. INCOMPATIBILITY, 

1065 
remove '!' and add '?' as required. 

1066 

62237  1067 
* HOLDecision_Procs: The "approximation" method works with "powr" 
1068 
(exponentiation on real numbers) again. 

1069 

62084  1070 
* HOLMultivariate_Analysis: theory Cauchy_Integral_Thm with Contour 
1071 
integrals (= complex path integrals), Cauchy's integral theorem, winding 

1072 
numbers and Cauchy's integral formula, Liouville theorem, Fundamental 

1073 
Theorem of Algebra. Ported from HOL Light. 

1074 

1075 
* HOLMultivariate_Analysis: topological concepts such as connected 

62017  1076 
components, homotopic paths and the inside or outside of a set. 
61121
efe8b18306b7
do not expose lowlevel "_def" facts of 'function' definitions, to avoid potential confusion with the situation of plain 'definition';
wenzelm
parents:
61119
diff
changeset

1077 

62084  1078 
* HOLMultivariate_Analysis: radius of convergence of power series and 
62064  1079 
various summability tests; Harmonic numbers and the Euler–Mascheroni 
1080 
constant; the Generalised Binomial Theorem; the complex and real 

1081 
Gamma/logGamma/Digamma/ Polygamma functions and their most important 

1082 
properties. 

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

1083 

62084  1084 
* HOLProbability: The central limit theorem based on Levy's uniqueness 
1085 
and continuity theorems, weak convergence, and characterisitc functions. 

1086 

1087 
* HOLData_Structures: new and growing session of standard data 

1088 
structures. 

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

1089 

60479  1090 

60793  1091 
*** ML *** 
1092 

62017  1093 
* The following combinators for lowlevel profiling of the ML runtime 
1094 
system are available: 

1095 

1096 
profile_time (*CPU time*) 

1097 
profile_time_thread (*CPU time on this thread*) 

1098 
profile_allocations (*overall heap allocations*) 

1099 

1100 
* Antiquotation @{undefined} or \<^undefined> inlines (raise Match). 

1101 

62075  1102 
* Antiquotation @{method NAME} inlines the (checked) name of the given 
1103 
Isar proof method. 

1104 

61922  1105 
* Pretty printing of Poly/ML compiler output in Isabelle has been 
1106 
improved: proper treatment of break offsets and blocks with consistent 

1107 
breaks. 

1108 

61268  1109 
* The auxiliary module Pure/display.ML has been eliminated. Its 
1110 
elementary thm print operations are now in Pure/more_thm.ML and thus 

1111 
called Thm.pretty_thm, Thm.string_of_thm etc. INCOMPATIBILITY. 

1112 

61144  1113 
* Simproc programming interfaces have been simplified: 
1114 
Simplifier.make_simproc and Simplifier.define_simproc supersede various 

1115 
forms of Simplifier.mk_simproc, Simplifier.simproc_global etc. Note that 

1116 
term patterns for the lefthand sides are specified with implicitly 

1117 
fixed variables, like toplevel theorem statements. INCOMPATIBILITY. 

1118 

60802  1119 
* Instantiation rules have been reorganized as follows: 
1120 

1121 
Thm.instantiate (*lowlevel instantiation with named arguments*) 

1122 
Thm.instantiate' (*version with positional arguments*) 

1123 

1124 
Drule.infer_instantiate (*instantiation with type inference*) 

1125 
Drule.infer_instantiate' (*version with positional arguments*) 

1126 

1127 
The LHS only requires variable specifications, instead of full terms. 

1128 
Old cterm_instantiate is superseded by infer_instantiate. 

1129 
INCOMPATIBILITY, need to readjust some ML names and types accordingly. 

1130 

60793  1131 
* Old tactic shorthands atac, rtac, etac, dtac, ftac have been 
1132 
discontinued. INCOMPATIBILITY, use regular assume_tac, resolve_tac etc. 

1133 
instead (with proper context). 

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

1134 

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

1135 
* Thm.instantiate (and derivatives) no longer require the LHS of the 
48dd1cefb4ae
simplified Thm.instantiate and derivatives: the LHS refers to noncertified variables  this merely serves as index into already certified structures (or is ignored);
wenzelm
parents:
60631
diff
changeset

1136 
instantiation to be certified: plain variables are given directly. 
48dd1cefb4ae
simplified Thm.instantiate and derivatives: the LHS refers to noncertified variables  this merely serves as index into already certified structures (or is ignored);
wenzelm
parents:
60631
diff
changeset

1137 

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

1138 
* Subgoal.SUBPROOF and Subgoal.FOCUS combinators use anonymous 
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

1139 
quasibound variables (like the Simplifier), instead of accidentally 
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

1140 
named local fixes. This has the potential to improve stability of proof 
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

1141 
tools, but can also cause INCOMPATIBILITY for tools that don't observe 
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

1142 
the proof context discipline. 
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

1143 

62017  1144 
* Isar proof methods are based on a slightly more general type 
1145 
context_tactic, which allows to change the proof context dynamically 

1146 
(e.g. to update cases) and indicate explicit Seq.Error results. Former 

1147 
METHOD_CASES is superseded by CONTEXT_METHOD; further combinators are 

1148 
provided in src/Pure/Isar/method.ML for convenience. INCOMPATIBILITY. 

61885
acdfc76a6c33
more explicit ML profiling, with official Isabelle output;
wenzelm
parents:
61848
diff
changeset

1149 

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

1150 

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

1151 
*** System *** 
ff4a67c65084
updated to polyml5.5.320150820, with native x86windows support;
wenzelm
parents:
60922
diff
changeset

1152 

62525  1153 
* Commandline tool "isabelle console" enables print mode "ASCII". 
61958  1154 

62017  1155 
* Commandline tool "isabelle update_then" expands old Isar command 
1156 
conflations: 

1157 

1158 
hence ~> then have 

1159 
thus ~> then show 

1160 

1161 
This syntax is more orthogonal and improves readability and 

1162 
maintainability of proofs. 

1163 

61602  1164 
* Global session timeout is multiplied by timeout_scale factor. This 
1165 
allows to adjust largescale tests (e.g. AFP) to overall hardware 

1166 
performance. 

1167 

61174  1168 
* Property values in etc/symbols may contain spaces, if written with the 
62671  1169 
replacement character "␣" (Unicode point 0x2324). For example: 
1170 

1171 
\<star> code: 0x0022c6 group: operator font: Deja␣Vu␣Sans␣Mono 

61174  1172 

60995
5176de8f90db
updated to jdk8u60, with support for x86_64windows;
wenzelm
parents:
60986
diff
changeset

1173 
* Java runtime environment for x86_64windows allows to use larger heap 
5176de8f90db
updated to jdk8u60, with support for x86_64windows;
wenzelm
parents:
60986
diff
changeset

1174 
space. 
5176de8f90db
updated to jdk8u60, with support for x86_64windows;
wenzelm
parents:
60986
diff
changeset

1175 

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

1176 
* Java runtime options are determined separately for 32bit vs. 64bit 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

1177 
platforms as follows. 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

1178 

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

1179 
 Isabelle desktop application: platformspecific files that are 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

1180 
associated with the main app bundle 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

1181 

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

1182 
 isabelle jedit: settings 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

1183 
JEDIT_JAVA_SYSTEM_OPTIONS 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

1184 
JEDIT_JAVA_OPTIONS32 vs. JEDIT_JAVA_OPTIONS64 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

1185 

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

1186 
 isabelle build: settings 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

1187 
ISABELLE_BUILD_JAVA_OPTIONS32 vs. ISABELLE_BUILD_JAVA_OPTIONS64 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

1188 

61294  1189 
* Bash shell function "jvmpath" has been renamed to "platform_path": it 
1190 
is relevant both for Poly/ML and JVM processes. 

1191 

62017  1192 
* Poly/ML default platform architecture may be changed from 32bit to 
62205  1193 
64bit via system option ML_system_64. A system restart (and rebuild) is 
1194 
required after change. 

62017  1195 

1196 
* Poly/ML 5.6 runs natively on x86windows and x86_64windows, which 

1197 
both allow larger heap space than former x86cygwin. 

1198 

62157  1199 
* Heap images are 1015% smaller due to less wasteful persistent theory 
1200 
content (using ML type theory_id instead of theory); 

1201 

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

1202 

60479  1203 

60009  1204 
New in Isabelle2015 (May 2015) 
1205 
 

57695  1206 

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

1207 
*** General *** 
57200bdc2aa7
localized command 'method_setup' and 'attribute_setup';
wenzelm
parents:
57882
diff
changeset

1208 

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

1209 
* Local theory specification commands may have a 'private' or 
59990
a81dc82ecba3
clarified keyword 'qualified' in accordance to a similar keyword from Haskell (despite unrelated Binding.qualified in Isabelle/ML);
wenzelm
parents:
59967
diff
changeset

1210 
'qualified' modifier to restrict name space accesses to the local scope, 
59939
7d46aa03696e
support for 'restricted' modifier: only qualified accesses outside the local scope;
wenzelm
parents:
59936
diff
changeset

1211 
as provided by some "context begin ... end" block. For example: 
59926  1212 

1213 
context 

1214 
begin 

1215 

1216 
private definition ... 

1217 
private lemma ... 

1218 

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

1219 
qualified definition ... 
a81dc82ecba3
clarified keyword 'qualified' in accordance to a similar keyword from Haskell (despite unrelated Binding.qualified in Isabelle/ML);
wenzelm
parents:
59967
diff
changeset

1220 
qualified lemma ... 
a81dc82ecba3
clarified keyword 'qualified' in accordance to a similar keyword from Haskell (despite unrelated Binding.qualified in Isabelle/ML);
wenzelm
parents:
59967
diff
changeset

1221 

59926  1222 
lemma ... 
1223 
theorem ... 

1224 

1225 
end 

1226 

59901  1227 
* Command 'experiment' opens an anonymous locale context with private 
1228 
naming policy. 

1229 

59951  1230 
* Command 'notepad' requires proper nesting of begin/end and its proof 
1231 
structure in the body: 'oops' is no longer supported here. Minor 

1232 
INCOMPATIBILITY, use 'sorry' instead. 

1233 

1234 
* Command 'named_theorems' declares a dynamic fact within the context, 

1235 
together with an attribute to maintain the content incrementally. This 

1236 
supersedes functor Named_Thms in Isabelle/ML, but with a subtle change 

1237 
of semantics due to external visual order vs. internal reverse order. 

1238 

1239 
* 'find_theorems': search patterns which are abstractions are 

1240 
schematically expanded before search. Search results match the naive 

1241 
expectation more closely, particularly wrt. abbreviations. 

1242 
INCOMPATIBILITY. 

59648  1243 

59569  1244 
* Commands 'method_setup' and 'attribute_setup' now work within a local 
1245 
theory context. 

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

1246 

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

1247 
* Outer syntax commands are managed authentically within the theory 
59569  1248 
context, without implicit global state. Potential for accidental 
58928
23d0ffd48006
plain value Keywords.keywords, which might be used outside theory for bootstrap purposes;
wenzelm
parents:
58872
diff
changeset

1249 
INCOMPATIBILITY, make sure that required theories are really imported. 
23d0ffd48006
plain value Keywords.keywords, which might be used outside theory for bootstrap purposes;
wenzelm
parents:
58872
diff
changeset

1250 

60115  1251 
* Historical commandline terminator ";" is no longer accepted (and 
1252 
already used differently in Isar). Minor INCOMPATIBILITY, use "isabelle 

1253 
update_semicolons" to remove obsolete semicolons from old theory 

1254 
sources. 

1255 

59951  1256 
* Structural composition of proof methods (meth1; meth2) in Isar 
1257 
corresponds to (tac1 THEN_ALL_NEW tac2) in ML. 

59105  1258 

60119
54bea620e54f
added Eisbach, using version 3752768caa17 of its Bitbucket repository;
wenzelm
parents:
60115
diff
changeset

1259 
* The Eisbach proof method language allows to define new proof methods 
54bea620e54f
added Eisbach, using version 3752768caa17 of its Bitbucket repository;
wenzelm
parents:
60115
diff
changeset

1260 
by combining existing ones with their usual syntax. The "match" proof 
54bea620e54f
added Eisbach, using version 3752768caa17 of its Bitbucket repository;
wenzelm
parents:
60115
diff
changeset

1261 
method provides basic fact/term matching in addition to 
54bea620e54f
added Eisbach, using version 3752768caa17 of its Bitbucket repository;
wenzelm
parents:
60115
diff
changeset

1262 
premise/conclusion matching through Subgoal.focus, and binds fact names 
60288
d7f636331176
added Eisbach manual, using version 8845c4cb28b6 of its Bitbucket repository;
wenzelm
parents:
60273
diff
changeset

1263 
from matches as well as term patterns within matches. The Isabelle 
d7f636331176
added Eisbach manual, using version 8845c4cb28b6 of its Bitbucket repository;
wenzelm
parents:
60273
diff
changeset

1264 
documentation provides an entry "eisbach" for the Eisbach User Manual. 
d7f636331176
added Eisbach manual, using version 8845c4cb28b6 of its Bitbucket repository;
wenzelm
parents:
60273
diff
changeset

1265 
Sources and various examples are in ~~/src/HOL/Eisbach/. 
60119
54bea620e54f
added Eisbach, using version 3752768caa17 of its Bitbucket repository;
wenzelm
parents:
60115
diff
changeset

1266 

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

1267 

58524  1268 
*** Prover IDE  Isabelle/Scala/jEdit *** 
1269 

59569  1270 
* Improved folding mode "isabelle" based on Isar syntax. Alternatively, 
1271 
the "sidekick" mode may be used for document structure. 

1272 

1273 
* Extended bracket matching based on Isar language structure. System 

1274 
option jedit_structure_limit determines maximum number of lines to scan 

1275 
in the buffer. 

58758  1276 

58540  1277 
* Support for BibTeX files: context menu, contextsensitive token 
1278 
marker, SideKick parser. 

58524  1279 

58551  1280 
* Document antiquotation @{cite} provides formal markup, which is 
60265  1281 
interpreted semiformally based on .bib files that happen to be open in 
1282 
the editor (hyperlinks, completion etc.). 

58551  1283 

58785  1284 
* Less waste of vertical space via negative line spacing (see Global 
1285 
Options / Text Area). 

1286 

60089
8bd5999133d4
let the system choose Graph_Display.display_graph_old: thm_deps needs tree hierarchy, code_deps needs cycles (!?);
wenzelm
parents:
60085
diff
changeset

1287 
* Improved graphview panel with optional output of PNG or PDF, for 
60273
83de10e27007
use display_graph_old for locale_deps, to show a bit more than nothing for cyclic graphs;
wenzelm
parents:
60265
diff
changeset

1288 
display of 'thy_deps', 'class_deps' etc. 
60009  1289 

60115  1290 
* The commands 'thy_deps' and 'class_deps' allow optional bounds to 
1291 
restrict the visualized hierarchy. 

60093  1292 

60072  1293 
* Improved scheduling for asynchronous print commands (e.g. provers 
1294 
managed by the Sledgehammer panel) wrt. ongoing document processing. 

1295 

58524  1296 

59951  1297 
*** Document preparation *** 
1298 

1299 
* Document markup commands 'chapter', 'section', 'subsection', 

1300 
'subsubsection', 'text', 'txt', 'text_raw' work uniformly in any 

1301 
context, even before the initial 'theory' command. Obsolete proof 

1302 
commands 'sect', 'subsect', 'subsubsect', 'txt_raw' have been 

1303 
discontinued, use 'section', 'subsection', 'subsubsection', 'text_raw' 

1304 
instead. The old 'header' command is still retained for some time, but 

1305 
should be replaced by 'chapter', 'section' etc. (using "isabelle 

1306 
update_header"). Minor INCOMPATIBILITY. 

1307 

60009  1308 
* Official support for "tt" style variants, via \isatt{...} or 
1309 
\begin{isabellett}...\end{isabellett}. The somewhat fragile \verb or 

1310 
verbatim environment of LaTeX is no longer used. This allows @{ML} etc. 

1311 
as argument to other macros (such as footnotes). 

1312 

1313 
* Document antiquotation @{verbatim} prints ASCII text literally in "tt" 

1314 
style. 

1315 

1316 
* Discontinued obsolete option "document_graph": session_graph.pdf is 

1317 
produced unconditionally for HTML browser_info and PDFLaTeX document. 

1318 

59951  1319 
* Diagnostic commands and document markup commands within a proof do not 
1320 
affect the command tag for output. Thus commands like 'thm' are subject 

1321 
to proof document structure, and no longer "stick out" accidentally. 

1322 
Commands 'text' and 'txt' merely differ in the LaTeX style, not their 

1323 
tags. Potential INCOMPATIBILITY in exotic situations. 

1324 

1325 
* System option "pretty_margin" is superseded by "thy_output_margin", 

1326 
which is also accessible via document antiquotation option "margin". 

1327 
Only the margin for document output may be changed, but not the global 

1328 
pretty printing: that is 76 for plain console output, and adapted 

1329 
dynamically in GUI frontends. Implementations of document 

1330 
antiquotations need to observe the margin explicitly according to 

1331 
Thy_Output.string_of_margin. Minor INCOMPATIBILITY. 

1332 

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

1333 
* Specification of 'document_files' in the session ROOT file is 
5ae2a2e74c93
clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
wenzelm
parents:
60288
diff
changeset

1334 
mandatory for document preparation. The legacy mode with implicit 
5ae2a2e74c93
clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
wenzelm
parents:
60288
diff
changeset

1335 
copying of the document/ directory is no longer supported. Minor 
5ae2a2e74c93
clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
wenzelm
parents:
60288
diff
changeset

1336 
INCOMPATIBILITY. 
5ae2a2e74c93
clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
wenzelm
parents:
60288
diff
changeset

1337 

59951  1338 

58202  1339 
*** Pure *** 
1340 

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

1341 
* Proof methods with explicit instantiation ("rule_tac", "subgoal_tac" 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

1342 
etc.) allow an optional context of local variables ('for' declaration): 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

1343 
these variables become schematic in the instantiated theorem; this 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

1344 
behaviour is analogous to 'for' in attributes "where" and "of". 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

1345 
Configuration option rule_insts_schematic (default false) controls use 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

1346 
of schematic variables outside the context. Minor INCOMPATIBILITY, 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

1347 
declare rule_insts_schematic = true temporarily and update to use local 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

1348 
variable declarations or dummy patterns instead. 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

1349 

60009  1350 
* Explicit instantiation via attributes "where", "of", and proof methods 
1351 
"rule_tac" with derivatives like "subgoal_tac" etc. admit dummy patterns 

1352 
("_") that stand for anonymous local variables. 

1353 

59951  1354 
* Generated schematic variables in standard format of exported facts are 
1355 
incremented to avoid material in the proof context. Rare 

1356 
INCOMPATIBILITY, explicit instantiation sometimes needs to refer to 

1357 
different index. 

1358 

60010  1359 
* Lexical separation of signed and unsigned numerals: categories "num" 
1360 
and "float" are unsigned. INCOMPATIBILITY: subtle change in precedence 

1361 
of numeral signs, particularly in expressions involving infix syntax 

1362 
like "( 1) ^ n". 

58410
6d46ad54a2ab
explicit separation of signed and unsigned numerals using existing lexical categories num and xnum
haftmann
parents:
58373
diff
changeset

1363 

58421  1364 
* Old inner token category "xnum" has been discontinued. Potential 
1365 
INCOMPATIBILITY for exotic syntax: may use mixfix grammar with "num" 

1366 
token category instead. 

1367 

58202  1368 

57737  1369 
*** HOL *** 
1370 

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

1371 
* New (co)datatype package: 
58373  1372 
 The 'datatype_new' command has been renamed 'datatype'. The old 
1373 
command of that name is now called 'old_datatype' and is provided 

1374 
by "~~/src/HOL/Library/Old_Datatype.thy". See 

1375 
'isabelle doc datatypes' for information on porting. 

1376 
INCOMPATIBILITY. 

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

1377 
 Renamed theorems: 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1378 
disc_corec ~> corec_disc 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1379 
disc_corec_iff ~> corec_disc_iff 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1380 
disc_exclude ~> distinct_disc 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1381 
disc_exhaust ~> exhaust_disc 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1382 
disc_map_iff ~> map_disc_iff 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1383 
sel_corec ~> corec_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1384 
sel_exhaust ~> exhaust_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1385 
sel_map ~> map_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1386 
sel_set ~> set_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1387 
sel_split ~> split_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1388 
sel_split_asm ~> split_sel_asm 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1389 
strong_coinduct ~> coinduct_strong 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1390 
weak_case_cong ~> case_cong_weak 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

1391 
INCOMPATIBILITY. 
58192  1392 
 The "no_code" option to "free_constructors", "datatype_new", and 
1393 
"codatatype" has been renamed "plugins del: code". 

1394 
INCOMPATIBILITY. 

58044  1395 
 The rules "set_empty" have been removed. They are easy 
1396 
consequences of other set rules "by auto". 

1397 
INCOMPATIBILITY. 

1398 
 The rule "set_cases" is now registered with the "[cases set]" 

57990  1399 
attribute. This can influence the behavior of the "cases" proof 