author  wenzelm 
Sat, 19 Sep 2015 21:09:38 +0200  
changeset 61198  459ba5953517 
parent 61178  0b071f72f330 
child 61215  652611b34c2c 
permissions  rwrr 
57491  1 
Isabelle NEWS  history of userrelevant changes 
2 
================================================= 

2553  3 

60006  4 
(Note: Isabelle/jEdit shows a treeview of this file in Sidekick.) 
5 

60331  6 

60138  7 
New in this Isabelle version 
8 
 

9 

60610
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10 
*** Prover IDE  Isabelle/Scala/jEdit *** 
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11 

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* Improved scheduling for urgent print tasks (e.g. command state output, 
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interactive queries) wrt. longrunning background tasks. 
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14 

60986  15 
* IDE support for the sourcelevel debugger of Poly/ML, to work with 
60984  16 
Isabelle/ML and official Standard ML. Configuration option "ML_debugger" 
17 
and commands 'ML_file_debug', 'ML_file_no_debug', 'SML_file_debug', 

18 
'SML_file_no_debug' control compilation of sources with debugging 

19 
information. The Debugger panel allows to set breakpoints (via context 

20 
menu), step through stopped threads, evaluate local ML expressions etc. 

21 
At least one Debugger view needs to be active to have any effect on the 

22 
running ML program. 

23 

61173  24 
* The main Isabelle executable is managed as singleinstance Desktop 
25 
application uniformly on all platforms: Linux, Windows, Mac OS X. 

61170  26 

61198  27 
* The text overview column (status of errors, warnings etc.) is updated 
28 
asynchronously, leading to much better editor reactivity. Moreover, the 

29 
full document node content is taken into account. 

30 

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31 

60406  32 
*** Isar *** 
33 

34 
* Command 'obtain' binds term abbreviations (via 'is' patterns) in the 

35 
proof body as well, abstracted over relevant parameters. 

36 

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37 
* Improved typeinference for theorem statement 'obtains': separate 
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38 
parameter scope for of each clause. 
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39 

60408
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40 
* Term abbreviations via 'is' patterns also work for schematic 
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41 
statements: result is abstracted over unknowns. 
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42 

60414  43 
* Local goals ('have', 'show', 'hence', 'thus') allow structured 
44 
statements like fixes/assumes/shows in theorem specifications, but the 

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notation is postfix with keywords 'if' (or 'when') and 'for'. For 
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example: 
60414  47 

48 
have result: "C x y" 

49 
if "A x" and "B y" 

50 
for x :: 'a and y :: 'a 

51 
<proof> 

52 

60449  53 
The local assumptions are bound to the name "that". The result is 
54 
exported from context of the statement as usual. The above roughly 

60414  55 
corresponds to a raw proof block like this: 
56 

57 
{ 

58 
fix x :: 'a and y :: 'a 

60449  59 
assume that: "A x" "B y" 
60414  60 
have "C x y" <proof> 
61 
} 

62 
note result = this 

60406  63 

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The keyword 'when' may be used instead of 'if', to indicate 'presume' 
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instead of 'assume' above. 
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66 

60595  67 
* The meaning of 'show' with Pure rule statements has changed: premises 
68 
are treated in the sense of 'assume', instead of 'presume'. This means, 

69 
a goal like "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" can be solved completely as follows: 

70 

71 
show "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" 

72 

73 
or: 

74 

75 
show "C x" if "A x" "B x" for x 

76 

77 
Rare INCOMPATIBILITY, the old behaviour may be recovered as follows: 

78 

79 
show "C x" when "A x" "B x" for x 

80 

60406  81 
* New command 'supply' supports fact definitions during goal refinement 
82 
('apply' scripts). 

83 

60459  84 
* New command 'consider' states rules for generalized elimination and 
85 
case splitting. This is like a toplevel statement "theorem obtains" used 

86 
within a proof body; or like a multibranch 'obtain' without activation 

87 
of the local context elements yet. 

88 

60455  89 
* Proof method "cases" allows to specify the rule as first entry of 
90 
chained facts. This is particularly useful with 'consider': 

91 

92 
consider (a) A  (b) B  (c) C <proof> 

93 
then have something 

94 
proof cases 

95 
case a 

96 
then show ?thesis <proof> 

97 
next 

98 
case b 

99 
then show ?thesis <proof> 

100 
next 

101 
case c 

102 
then show ?thesis <proof> 

103 
qed 

104 

60565  105 
* Command 'case' allows fact name and attribute specification like this: 
106 

107 
case a: (c xs) 

108 
case a [attributes]: (c xs) 

109 

110 
Facts that are introduced by invoking the case context are uniformly 

111 
qualified by "a"; the same name is used for the cumulative fact. The old 

112 
form "case (c xs) [attributes]" is no longer supported. Rare 

113 
INCOMPATIBILITY, need to adapt uses of case facts in exotic situations, 

114 
and always put attributes in front. 

115 

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* The standard proof method of commands 'proof' and '..' is now called 
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"standard" to make semantically clear what it is; the old name "default" 
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is still available as legacy for some time. Documentation now explains 
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'..' more accurately as "by standard" instead of "by rule". 
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120 

60631  121 
* Command 'subgoal' allows to impose some structure on backward 
122 
refinements, to avoid proof scripts degenerating into long of 'apply' 

123 
sequences. Further explanations and examples are given in the isarref 

124 
manual. 

125 

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* Proof method "goal_cases" turns the current subgoals into cases within 
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the context; the conclusion is bound to variable ?case in each case. For 
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128 
example: 
60617  129 

130 
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" 

60622  131 
and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z" 
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132 
proof goal_cases 
60622  133 
case (1 x) 
134 
then show ?case using \<open>A x\<close> \<open>B x\<close> sorry 

135 
next 

136 
case (2 y z) 

137 
then show ?case using \<open>U y\<close> \<open>V z\<close> sorry 

138 
qed 

139 

140 
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" 

141 
and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z" 

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142 
proof goal_cases 
60617  143 
case prems: 1 
144 
then show ?case using prems sorry 

145 
next 

146 
case prems: 2 

147 
then show ?case using prems sorry 

148 
qed 

60578  149 

60581  150 
* The undocumented feature of implicit cases goal1, goal2, goal3, etc. 
60617  151 
is marked as legacy, and will be removed eventually. The proof method 
152 
"goals" achieves a similar effect within regular Isar; often it can be 

153 
done more adequately by other means (e.g. 'consider'). 

60581  154 

60551  155 
* Nesting of Isar goal structure has been clarified: the context after 
156 
the initial backwards refinement is retained for the whole proof, within 

157 
all its context sections (as indicated via 'next'). This is e.g. 

158 
relevant for 'using', 'including', 'supply': 

159 

160 
have "A \<and> A" if a: A for A 

161 
supply [simp] = a 

162 
proof 

163 
show A by simp 

164 
next 

165 
show A by simp 

166 
qed 

167 

60554  168 
* Method "sleep" succeeds after a realtime delay (in seconds). This is 
169 
occasionally useful for demonstration and testing purposes. 

170 

60406  171 

60331  172 
*** Pure *** 
173 

60489  174 
* The vacuous fact "TERM x" may be established "by fact" or as `TERM x` 
175 
as well, not just "by this" or "." as before. 

176 

60331  177 
* Configuration option rule_insts_schematic has been discontinued 
178 
(intermediate legacy feature in Isabelle2015). INCOMPATIBILITY. 

179 

60347  180 
* Abbreviations in type classes now carry proper sort constraint. 
181 
Rare INCOMPATIBILITY in situations where the previous misbehaviour 

182 
has been exploited previously. 

183 

184 
* Refinement of userspace type system in type classes: pseudolocal 

185 
operations behave more similar to abbreviations. Potential 

186 
INCOMPATIBILITY in exotic situations. 

187 

188 

60171  189 
*** HOL *** 
190 

61118  191 
* Qualification of various formal entities in the libraries is done more 
192 
uniformly via "context begin qualified definition ... end" instead of 

193 
oldstyle "hide_const (open) ...". Consequently, both the defined 

194 
constant and its defining fact become qualified, e.g. Option.is_none and 

195 
Option.is_none_def. Occasional INCOMPATIBILITY in applications. 

196 

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* Combinator to represent case distinction on products is named "uncurry", 
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198 
with "split" and "prod_case" retained as input abbreviations. 
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199 
Partially applied occurences of "uncurry" with etacontracted body 
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200 
terms are not printed with special syntax, to provide a compact 
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201 
notation and getting rid of a specialcase print translation. 
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202 
Hence, the "uncurry"expressions are printed the following way: 
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203 
a) fully applied "uncurry f p": explicit caseexpression; 
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b) partially applied with explicit double lambda abstraction in 
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the body term "uncurry (%a b. t [a, b])": explicit paired abstraction; 
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c) partially applied with etacontracted body term "uncurry f": 
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no special syntax, plain "uncurry" combinator. 
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208 
This aims for maximum readability in a given subterm. 
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INCOMPATIBILITY. 
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210 

61069  211 
* Some old and rarely used ASCII replacement syntax has been removed. 
212 
INCOMPATIBILITY, standard syntax with symbols should be used instead. 

213 
The subsequent commands help to reproduce the old forms, e.g. to 

214 
simplify porting old theories: 

215 

216 
type_notation Map.map (infixr "~=>" 0) 

217 
notation Map.map_comp (infixl "o'_m" 55) 

218 

61143  219 
* The alternative notation "\<Colon>" for type and sort constraints has been 
220 
removed: in LaTeX document output it looks the same as "::". 

221 
INCOMPATIBILITY, use plain "::" instead. 

222 

60841  223 
* Theory Map: lemma map_of_is_SomeD was a clone of map_of_SomeD and has 
224 
been removed. INCOMPATIBILITY. 

225 

60712
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Quickcheck setup for finite sets
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226 
* Quickcheck setup for finite sets. 
3ba16d28449d
Quickcheck setup for finite sets
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227 

60171  228 
* Discontinued simp_legacy_precond. Potential INCOMPATIBILITY. 
60138  229 

60306
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made Auto Sledgehammer behave more like the real thing
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230 
* Sledgehammer: 
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231 
 Proof reconstruction has been improved, to minimize the incidence of 
6b7c64ab8bd2
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232 
cases where Sledgehammer gives a proof that does not work. 
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233 
 Auto Sledgehammer now minimizes and preplays the results. 
61030  234 
 Handle Vampire 4.0 proof output without raising exception. 
61043  235 
 Eliminated "MASH" environment variable. Use the "MaSh" option in 
236 
Isabelle/jEdit instead. INCOMPATIBILITY. 

60306
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237 

60310  238 
* Nitpick: 
239 
 Removed "check_potential" and "check_genuine" options. 

240 

60922  241 
* New commands lift_bnf and copy_bnf for lifting (copying) a BNF structure 
242 
on the raw type to an abstract type defined using typedef. 

60920  243 

60868
dd18c33c001e
direct bootstrap of integer division from natural division
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244 
* Division on integers is bootstrapped directly from division on 
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245 
naturals and uses generic numeral algorithm for computations. 
dd18c33c001e
direct bootstrap of integer division from natural division
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246 
Slight INCOMPATIBILITY, simproc numeral_divmod replaces and generalizes 
dd18c33c001e
direct bootstrap of integer division from natural division
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247 
former simprocs binary_int_div and binary_int_mod 
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248 

60516
0826b7025d07
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249 
* Tightened specification of class semiring_no_zero_divisors. Slight 
0826b7025d07
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250 
INCOMPATIBILITY. 
0826b7025d07
generalized some theorems about integral domains and moved to HOL theories
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251 

60688
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252 
* Class algebraic_semidom introduces common algebraic notions of 
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253 
integral (semi)domains, particularly units. Although 
60517
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254 
logically subsumed by fields, is is not a super class of these 
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255 
in order not to burden fields with notions that are trivial there. 
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256 

01488b559910
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257 
* Class normalization_semidom specifies canonical representants 
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258 
for equivalence classes of associated elements in an integral 
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259 
(semi)domain. This formalizes associated elements as well. 
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260 

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261 
* Abstract specification of gcd/lcm operations in classes semiring_gcd, 
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262 
semiring_Gcd, semiring_Lcd. Minor INCOMPATIBILITY: facts gcd_nat.commute 
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263 
and gcd_int.commute are subsumed by gcd.commute, as well as gcd_nat.assoc 
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264 
and gcd_int.assoc by gcd.assoc. 
60517
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265 

60429
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266 
* Former constants Fields.divide (_ / _) and Divides.div (_ div _) 
60352
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267 
are logically unified to Rings.divide in syntactic type class 
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268 
Rings.divide, with infix syntax (_ div _). Infix syntax (_ / _) 
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269 
for field division is added later as abbreviation in class Fields.inverse. 
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270 
INCOMPATIBILITY, instantiations must refer to Rings.divide rather 
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271 
than the former separate constants, hence infix syntax (_ / _) is usually 
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272 
not available during instantiation. 
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separate class for division operator, with particular syntax added in more specific classes
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273 

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Renaming multiset operators < ~> <#,...
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274 
* Library/Multiset: 
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275 
 Renamed multiset inclusion operators: 
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< ~> <# 
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\<subset> ~> \<subset># 
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parents:
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diff
changeset

278 
<= ~> <=# 
f8a513fedb31
Renaming multiset operators < ~> <#,...
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parents:
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diff
changeset

279 
\<le> ~> \<le># 
f8a513fedb31
Renaming multiset operators < ~> <#,...
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parents:
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diff
changeset

280 
\<subseteq> ~> \<subseteq># 
f8a513fedb31
Renaming multiset operators < ~> <#,...
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parents:
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diff
changeset

281 
INCOMPATIBILITY. 
f8a513fedb31
Renaming multiset operators < ~> <#,...
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parents:
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diff
changeset

282 
 "'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

283 
"ordered_ab_semigroup_add_imp_le", "ordered_cancel_comm_monoid_diff", 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
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diff
changeset

284 
"semilattice_inf", and "semilattice_sup" type classes. The theorems 
f8a513fedb31
Renaming multiset operators < ~> <#,...
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parents:
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diff
changeset

285 
previously provided by these type classes (directly or indirectly) 
f8a513fedb31
Renaming multiset operators < ~> <#,...
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parents:
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diff
changeset

286 
are now available through the "subset_mset" interpretation 
f8a513fedb31
Renaming multiset operators < ~> <#,...
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parents:
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diff
changeset

287 
(e.g. add_mono ~> subset_mset.add_mono). 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

288 
INCOMPATIBILITY. 
60497  289 
 Renamed conversions: 
60515  290 
multiset_of ~> mset 
291 
multiset_of_set ~> mset_set 

60497  292 
set_of ~> set_mset 
293 
INCOMPATIBILITY 

60398  294 
 Renamed lemmas: 
295 
mset_le_def ~> subseteq_mset_def 

296 
mset_less_def ~> subset_mset_def 

60400  297 
less_eq_multiset.rep_eq ~> subseteq_mset_def 
298 
INCOMPATIBILITY 

299 
 Removed lemmas generated by lift_definition: 

300 
less_eq_multiset.abs_eq, less_eq_multiset.rsp less_eq_multiset.transfer 

301 
less_eq_multiset_def 

302 
INCOMPATIBILITY 

60006  303 

60809
457abb82fb9e
the Cauchy integral theorem and related material
paulson <lp15@cam.ac.uk>
parents:
60802
diff
changeset

304 
* Multivariate_Analysis/Cauchy_Integral_Thm: Complex path integrals and Cauchy's integral theorem, 
457abb82fb9e
the Cauchy integral theorem and related material
paulson <lp15@cam.ac.uk>
parents:
60802
diff
changeset

305 
ported from HOL Light 
457abb82fb9e
the Cauchy integral theorem and related material
paulson <lp15@cam.ac.uk>
parents:
60802
diff
changeset

306 

60523  307 
* Theory Library/Old_Recdef: discontinued obsolete 'defer_recdef' 
308 
command. Minor INCOMPATIBILITY, use 'function' instead. 

309 

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

310 
* Recursive function definitions ('fun', 'function', 'partial_function') 
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

311 
no longer expose the lowlevel "_def" facts of the internal 
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

312 
construction. INCOMPATIBILITY, enable option "function_defs" in the 
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

313 
context for rare situations where these facts are really needed. 
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

314 

61119  315 
* Imperative_HOL: obsolete theory Legacy_Mrec has been removed. 
316 

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

317 
* Library/Omega_Words_Fun: Infinite words modeled as functions nat => 'a. 
0b071f72f330
Omega_Words_Fun: Infinite words as functions from nat.
lammich <lammich@in.tum.de>
parents:
61174
diff
changeset

318 

60479  319 

60793  320 
*** ML *** 
321 

61144  322 
* Simproc programming interfaces have been simplified: 
323 
Simplifier.make_simproc and Simplifier.define_simproc supersede various 

324 
forms of Simplifier.mk_simproc, Simplifier.simproc_global etc. Note that 

325 
term patterns for the lefthand sides are specified with implicitly 

326 
fixed variables, like toplevel theorem statements. INCOMPATIBILITY. 

327 

60802  328 
* Instantiation rules have been reorganized as follows: 
329 

330 
Thm.instantiate (*lowlevel instantiation with named arguments*) 

331 
Thm.instantiate' (*version with positional arguments*) 

332 

333 
Drule.infer_instantiate (*instantiation with type inference*) 

334 
Drule.infer_instantiate' (*version with positional arguments*) 

335 

336 
The LHS only requires variable specifications, instead of full terms. 

337 
Old cterm_instantiate is superseded by infer_instantiate. 

338 
INCOMPATIBILITY, need to readjust some ML names and types accordingly. 

339 

60793  340 
* Old tactic shorthands atac, rtac, etac, dtac, ftac have been 
341 
discontinued. INCOMPATIBILITY, use regular assume_tac, resolve_tac etc. 

342 
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

343 

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

344 
* 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

345 
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

346 

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

347 
* 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

348 
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

349 
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

350 
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

351 
the proof context discipline. 
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

352 

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

353 

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

354 
*** System *** 
ff4a67c65084
updated to polyml5.5.320150820, with native x86windows support;
wenzelm
parents:
60922
diff
changeset

355 

61174  356 
* Property values in etc/symbols may contain spaces, if written with the 
357 
replacement character "␣" (Unicode point 0x2324). For example: 

358 

359 
\<star> code: 0x0022c6 group: operator font: Deja␣Vu␣Sans␣Mono 

360 

61173  361 
* Commandline tool "isabelle jedit_client" allows to connect to already 
362 
running Isabelle/jEdit process. This achieves the effect of 

363 
singleinstance applications seen on common GUI desktops. 

364 

61158
ea6a4c8bc722
convenient change of ML system architecture via system option ML_preference_64, which is grepped offline from stored preferences during bootstrap;
wenzelm
parents:
61149
diff
changeset

365 
* Poly/ML default platform architecture may be changed from 32bit to 
ea6a4c8bc722
convenient change of ML system architecture via system option ML_preference_64, which is grepped offline from stored preferences during bootstrap;
wenzelm
parents:
61149
diff
changeset

366 
64bit via system option ML_system_64. A system restart (and rebuild) 
ea6a4c8bc722
convenient change of ML system architecture via system option ML_preference_64, which is grepped offline from stored preferences during bootstrap;
wenzelm
parents:
61149
diff
changeset

367 
is required after change. 
ea6a4c8bc722
convenient change of ML system architecture via system option ML_preference_64, which is grepped offline from stored preferences during bootstrap;
wenzelm
parents:
61149
diff
changeset

368 

61074  369 
* Poly/ML 5.5.3 runs natively on x86windows and x86_64windows, 
370 
which both allow larger heap space than former x86cygwin. 

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

371 

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

372 
* 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

373 
space. 
5176de8f90db
updated to jdk8u60, with support for x86_64windows;
wenzelm
parents:
60986
diff
changeset

374 

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

375 
* 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

376 
platforms as follows. 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

377 

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

378 
 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

379 
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

380 

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

381 
 isabelle jedit: settings 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

382 
JEDIT_JAVA_SYSTEM_OPTIONS 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

383 
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

384 

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

385 
 isabelle build: settings 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

386 
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

387 

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

388 

60479  389 

60009  390 
New in Isabelle2015 (May 2015) 
391 
 

57695  392 

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

393 
*** General *** 
57200bdc2aa7
localized command 'method_setup' and 'attribute_setup';
wenzelm
parents:
57882
diff
changeset

394 

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

395 
* 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

396 
'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

397 
as provided by some "context begin ... end" block. For example: 
59926  398 

399 
context 

400 
begin 

401 

402 
private definition ... 

403 
private lemma ... 

404 

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

405 
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

406 
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

407 

59926  408 
lemma ... 
409 
theorem ... 

410 

411 
end 

412 

59901  413 
* Command 'experiment' opens an anonymous locale context with private 
414 
naming policy. 

415 

59951  416 
* Command 'notepad' requires proper nesting of begin/end and its proof 
417 
structure in the body: 'oops' is no longer supported here. Minor 

418 
INCOMPATIBILITY, use 'sorry' instead. 

419 

420 
* Command 'named_theorems' declares a dynamic fact within the context, 

421 
together with an attribute to maintain the content incrementally. This 

422 
supersedes functor Named_Thms in Isabelle/ML, but with a subtle change 

423 
of semantics due to external visual order vs. internal reverse order. 

424 

425 
* 'find_theorems': search patterns which are abstractions are 

426 
schematically expanded before search. Search results match the naive 

427 
expectation more closely, particularly wrt. abbreviations. 

428 
INCOMPATIBILITY. 

59648  429 

59569  430 
* Commands 'method_setup' and 'attribute_setup' now work within a local 
431 
theory context. 

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

432 

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

433 
* Outer syntax commands are managed authentically within the theory 
59569  434 
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

435 
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

436 

60115  437 
* Historical commandline terminator ";" is no longer accepted (and 
438 
already used differently in Isar). Minor INCOMPATIBILITY, use "isabelle 

439 
update_semicolons" to remove obsolete semicolons from old theory 

440 
sources. 

441 

59951  442 
* Structural composition of proof methods (meth1; meth2) in Isar 
443 
corresponds to (tac1 THEN_ALL_NEW tac2) in ML. 

59105  444 

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

445 
* 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

446 
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

447 
method provides basic fact/term matching in addition to 
54bea620e54f
added Eisbach, using version 3752768caa17 of its Bitbucket repository;
wenzelm
parents:
60115
diff
changeset

448 
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

449 
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

450 
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

451 
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

452 

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

453 

58524  454 
*** Prover IDE  Isabelle/Scala/jEdit *** 
455 

59569  456 
* Improved folding mode "isabelle" based on Isar syntax. Alternatively, 
457 
the "sidekick" mode may be used for document structure. 

458 

459 
* Extended bracket matching based on Isar language structure. System 

460 
option jedit_structure_limit determines maximum number of lines to scan 

461 
in the buffer. 

58758  462 

58540  463 
* Support for BibTeX files: context menu, contextsensitive token 
464 
marker, SideKick parser. 

58524  465 

58551  466 
* Document antiquotation @{cite} provides formal markup, which is 
60265  467 
interpreted semiformally based on .bib files that happen to be open in 
468 
the editor (hyperlinks, completion etc.). 

58551  469 

58785  470 
* Less waste of vertical space via negative line spacing (see Global 
471 
Options / Text Area). 

472 

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

473 
* 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

474 
display of 'thy_deps', 'class_deps' etc. 
60009  475 

60115  476 
* The commands 'thy_deps' and 'class_deps' allow optional bounds to 
477 
restrict the visualized hierarchy. 

60093  478 

60072  479 
* Improved scheduling for asynchronous print commands (e.g. provers 
480 
managed by the Sledgehammer panel) wrt. ongoing document processing. 

481 

58524  482 

59951  483 
*** Document preparation *** 
484 

485 
* Document markup commands 'chapter', 'section', 'subsection', 

486 
'subsubsection', 'text', 'txt', 'text_raw' work uniformly in any 

487 
context, even before the initial 'theory' command. Obsolete proof 

488 
commands 'sect', 'subsect', 'subsubsect', 'txt_raw' have been 

489 
discontinued, use 'section', 'subsection', 'subsubsection', 'text_raw' 

490 
instead. The old 'header' command is still retained for some time, but 

491 
should be replaced by 'chapter', 'section' etc. (using "isabelle 

492 
update_header"). Minor INCOMPATIBILITY. 

493 

60009  494 
* Official support for "tt" style variants, via \isatt{...} or 
495 
\begin{isabellett}...\end{isabellett}. The somewhat fragile \verb or 

496 
verbatim environment of LaTeX is no longer used. This allows @{ML} etc. 

497 
as argument to other macros (such as footnotes). 

498 

499 
* Document antiquotation @{verbatim} prints ASCII text literally in "tt" 

500 
style. 

501 

502 
* Discontinued obsolete option "document_graph": session_graph.pdf is 

503 
produced unconditionally for HTML browser_info and PDFLaTeX document. 

504 

59951  505 
* Diagnostic commands and document markup commands within a proof do not 
506 
affect the command tag for output. Thus commands like 'thm' are subject 

507 
to proof document structure, and no longer "stick out" accidentally. 

508 
Commands 'text' and 'txt' merely differ in the LaTeX style, not their 

509 
tags. Potential INCOMPATIBILITY in exotic situations. 

510 

511 
* System option "pretty_margin" is superseded by "thy_output_margin", 

512 
which is also accessible via document antiquotation option "margin". 

513 
Only the margin for document output may be changed, but not the global 

514 
pretty printing: that is 76 for plain console output, and adapted 

515 
dynamically in GUI frontends. Implementations of document 

516 
antiquotations need to observe the margin explicitly according to 

517 
Thy_Output.string_of_margin. Minor INCOMPATIBILITY. 

518 

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

519 
* 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

520 
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

521 
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

522 
INCOMPATIBILITY. 
5ae2a2e74c93
clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
wenzelm
parents:
60288
diff
changeset

523 

59951  524 

58202  525 
*** Pure *** 
526 

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

527 
* 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

528 
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

529 
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

530 
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

531 
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

532 
of schematic variables outside the context. Minor INCOMPATIBILITY, 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

533 
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

534 
variable declarations or dummy patterns instead. 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

535 

60009  536 
* Explicit instantiation via attributes "where", "of", and proof methods 
537 
"rule_tac" with derivatives like "subgoal_tac" etc. admit dummy patterns 

538 
("_") that stand for anonymous local variables. 

539 

59951  540 
* Generated schematic variables in standard format of exported facts are 
541 
incremented to avoid material in the proof context. Rare 

542 
INCOMPATIBILITY, explicit instantiation sometimes needs to refer to 

543 
different index. 

544 

60010  545 
* Lexical separation of signed and unsigned numerals: categories "num" 
546 
and "float" are unsigned. INCOMPATIBILITY: subtle change in precedence 

547 
of numeral signs, particularly in expressions involving infix syntax 

548 
like "( 1) ^ n". 

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

549 

58421  550 
* Old inner token category "xnum" has been discontinued. Potential 
551 
INCOMPATIBILITY for exotic syntax: may use mixfix grammar with "num" 

552 
token category instead. 

553 

58202  554 

57737  555 
*** HOL *** 
556 

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

557 
* New (co)datatype package: 
58373  558 
 The 'datatype_new' command has been renamed 'datatype'. The old 
559 
command of that name is now called 'old_datatype' and is provided 

560 
by "~~/src/HOL/Library/Old_Datatype.thy". See 

561 
'isabelle doc datatypes' for information on porting. 

562 
INCOMPATIBILITY. 

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

563 
 Renamed theorems: 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

564 
disc_corec ~> corec_disc 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

565 
disc_corec_iff ~> corec_disc_iff 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

566 
disc_exclude ~> distinct_disc 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

567 
disc_exhaust ~> exhaust_disc 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

568 
disc_map_iff ~> map_disc_iff 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

569 
sel_corec ~> corec_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

570 
sel_exhaust ~> exhaust_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

571 
sel_map ~> map_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

572 
sel_set ~> set_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

573 
sel_split ~> split_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

574 
sel_split_asm ~> split_sel_asm 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

575 
strong_coinduct ~> coinduct_strong 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

576 
weak_case_cong ~> case_cong_weak 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

577 
INCOMPATIBILITY. 
58192  578 
 The "no_code" option to "free_constructors", "datatype_new", and 
579 
"codatatype" has been renamed "plugins del: code". 

580 
INCOMPATIBILITY. 

58044  581 
 The rules "set_empty" have been removed. They are easy 
582 
consequences of other set rules "by auto". 

583 
INCOMPATIBILITY. 

584 
 The rule "set_cases" is now registered with the "[cases set]" 

57990  585 
attribute. This can influence the behavior of the "cases" proof 
586 
method when more than one case rule is applicable (e.g., an 

587 
assumption is of the form "w : set ws" and the method "cases w" 

588 
is invoked). The solution is to specify the case rule explicitly 

589 
(e.g. "cases w rule: widget.exhaust"). 

590 
INCOMPATIBILITY. 

59675  591 
 Renamed theories: 
592 
BNF_Comp ~> BNF_Composition 

593 
BNF_FP_Base ~> BNF_Fixpoint_Base 

594 
BNF_GFP ~> BNF_Greatest_Fixpoint 

595 
BNF_LFP ~> BNF_Least_Fixpoint 

596 
BNF_Constructions_on_Wellorders ~> BNF_Wellorder_Constructions 

597 
Cardinals/Constructions_on_Wellorders ~> Cardinals/Wellorder_Constructions 

598 
INCOMPATIBILITY. 

60114  599 
 Lifting and Transfer setup for basic HOL types sum and prod (also 
600 
option) is now performed by the BNF package. Theories Lifting_Sum, 

601 
Lifting_Product and Lifting_Option from Main became obsolete and 

602 
were removed. Changed definitions of the relators rel_prod and 

603 
rel_sum (using inductive). 

60111  604 
INCOMPATIBILITY: use rel_prod.simps and rel_sum.simps instead 
60114  605 
of rel_prod_def and rel_sum_def. 
606 
Minor INCOMPATIBILITY: (rarely used by name) transfer theorem names 

607 
changed (e.g. map_prod_transfer ~> prod.map_transfer). 

60261  608 
 Parametricity theorems for map functions, relators, set functions, 
609 
constructors, case combinators, discriminators, selectors and 

610 
(co)recursors are automatically proved and registered as transfer 

611 
rules. 

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

612 

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

613 
* Old datatype package: 
58310  614 
 The old 'datatype' command has been renamed 'old_datatype', and 
58373  615 
'rep_datatype' has been renamed 'old_rep_datatype'. They are 
616 
provided by "~~/src/HOL/Library/Old_Datatype.thy". See 

58310  617 
'isabelle doc datatypes' for information on porting. 
58373  618 
INCOMPATIBILITY. 
57983
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

619 
 Renamed theorems: 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

620 
weak_case_cong ~> case_cong_weak 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

621 
INCOMPATIBILITY. 
58373  622 
 Renamed theory: 
623 
~~/src/HOL/Datatype.thy ~> ~~/src/HOL/Library/Old_Datatype.thy 

624 
INCOMPATIBILITY. 

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

625 

59039  626 
* Nitpick: 
60010  627 
 Fixed soundness bug related to the strict and nonstrict subset 
59039  628 
operations. 
629 

57737  630 
* Sledgehammer: 
59511  631 
 CVC4 is now included with Isabelle instead of CVC3 and run by 
632 
default. 

59965  633 
 Z3 is now always enabled by default, now that it is fully open 
634 
source. The "z3_non_commercial" option is discontinued. 

57737  635 
 Minimization is now always enabled by default. 
60010  636 
Removed subcommand: 
57737  637 
min 
59967  638 
 Proof reconstruction, both oneliners and Isar, has been 
59039  639 
dramatically improved. 
640 
 Improved support for CVC4 and veriT. 

57737  641 

58062  642 
* Old and new SMT modules: 
58067  643 
 The old 'smt' method has been renamed 'old_smt' and moved to 
59569  644 
'src/HOL/Library/Old_SMT.thy'. It is provided for compatibility, 
645 
until applications have been ported to use the new 'smt' method. For 

646 
the method to work, an older version of Z3 (e.g. Z3 3.2 or 4.0) must 

647 
be installed, and the environment variable "OLD_Z3_SOLVER" must 

648 
point to it. 

58062  649 
INCOMPATIBILITY. 
58067  650 
 The 'smt2' method has been renamed 'smt'. 
58060  651 
INCOMPATIBILITY. 
59569  652 
 New option 'smt_reconstruction_step_timeout' to limit the 
653 
reconstruction time of Z3 proof steps in the new 'smt' method. 

59216  654 
 New option 'smt_statistics' to display statistics of the new 'smt' 
655 
method, especially runtime statistics of Z3 proof reconstruction. 

58060  656 

60261  657 
* Lifting: command 'lift_definition' allows to execute lifted constants 
658 
that have as a return type a datatype containing a subtype. This 

659 
overcomes longtime limitations in the area of code generation and 

660 
lifting, and avoids tedious workarounds. 

60258  661 

60009  662 
* Command and antiquotation "value" provide different evaluation slots 
663 
(again), where the previous strategy (NBE after ML) serves as default. 

664 
Minor INCOMPATIBILITY. 

665 

666 
* Add NO_MATCHsimproc, allows to check for syntactic nonequality. 

667 

668 
* field_simps: Use NO_MATCHsimproc for distribution rules, to avoid 

669 
nontermination in case of distributing a division. With this change 

670 
field_simps is in some cases slightly less powerful, if it fails try to 

671 
add algebra_simps, or use divide_simps. Minor INCOMPATIBILITY. 

672 

673 
* Separate class no_zero_divisors has been given up in favour of fully 

674 
algebraic semiring_no_zero_divisors. INCOMPATIBILITY. 

675 

676 
* Class linordered_semidom really requires no zero divisors. 

677 
INCOMPATIBILITY. 

678 

679 
* Classes division_ring, field and linordered_field always demand 

680 
"inverse 0 = 0". Given up separate classes division_ring_inverse_zero, 

681 
field_inverse_zero and linordered_field_inverse_zero. INCOMPATIBILITY. 

682 

683 
* Classes cancel_ab_semigroup_add / cancel_monoid_add specify explicit 

684 
additive inverse operation. INCOMPATIBILITY. 

685 

60020
065ecea354d0
Complex roots of unity. Better definition of ln for complex numbers. Used [code del] to stop code generation for powr.
paulson <lp15@cam.ac.uk>
parents:
60010
diff
changeset

686 
* Complex powers and square roots. The functions "ln" and "powr" are now 
60025  687 
overloaded for types real and complex, and 0 powr y = 0 by definition. 
688 
INCOMPATIBILITY: type constraints may be necessary. 

60020
065ecea354d0
Complex roots of unity. Better definition of ln for complex numbers. Used [code del] to stop code generation for powr.
paulson <lp15@cam.ac.uk>
parents:
60010
diff
changeset

689 

60009  690 
* The functions "sin" and "cos" are now defined for any type of sort 
691 
"{real_normed_algebra_1,banach}" type, so in particular on "real" and 

692 
"complex" uniformly. Minor INCOMPATIBILITY: type constraints may be 

693 
needed. 

694 

695 
* New library of properties of the complex transcendental functions sin, 

696 
cos, tan, exp, Ln, Arctan, Arcsin, Arccos. Ported from HOL Light. 

697 

698 
* The factorial function, "fact", now has type "nat => 'a" (of a sort 

699 
that admits numeric types including nat, int, real and complex. 

700 
INCOMPATIBILITY: an expression such as "fact 3 = 6" may require a type 

701 
constraint, and the combination "real (fact k)" is likely to be 

702 
unsatisfactory. If a type conversion is still necessary, then use 

703 
"of_nat (fact k)" or "real_of_nat (fact k)". 

704 

705 
* Removed functions "natfloor" and "natceiling", use "nat o floor" and 

706 
"nat o ceiling" instead. A few of the lemmas have been retained and 

707 
adapted: in their names "natfloor"/"natceiling" has been replaced by 

708 
"nat_floor"/"nat_ceiling". 

709 

710 
* Qualified some duplicated fact names required for boostrapping the 

711 
type class hierarchy: 

712 
ab_add_uminus_conv_diff ~> diff_conv_add_uminus 

713 
field_inverse_zero ~> inverse_zero 

714 
field_divide_inverse ~> divide_inverse 

715 
field_inverse ~> left_inverse 

716 
Minor INCOMPATIBILITY. 

717 

718 
* Eliminated fact duplicates: 

719 
mult_less_imp_less_right ~> mult_right_less_imp_less 

720 
mult_less_imp_less_left ~> mult_left_less_imp_less 

721 
Minor INCOMPATIBILITY. 

722 

723 
* Fact consolidation: even_less_0_iff is subsumed by 

724 
double_add_less_zero_iff_single_add_less_zero (simp by default anyway). 

725 

726 
* Generalized and consolidated some theorems concerning divsibility: 

727 
dvd_reduce ~> dvd_add_triv_right_iff 

728 
dvd_plus_eq_right ~> dvd_add_right_iff 

729 
dvd_plus_eq_left ~> dvd_add_left_iff 

730 
Minor INCOMPATIBILITY. 

731 

732 
* "even" and "odd" are mere abbreviations for "2 dvd _" and "~ 2 dvd _" 

733 
and part of theory Main. 

734 
even_def ~> even_iff_mod_2_eq_zero 

735 
INCOMPATIBILITY. 

736 

737 
* Lemma name consolidation: divide_Numeral1 ~> divide_numeral_1. Minor 

738 
INCOMPATIBILITY. 

739 

740 
* Bootstrap of listsum as special case of abstract product over lists. 

741 
Fact rename: 

742 
listsum_def ~> listsum.eq_foldr 

743 
INCOMPATIBILITY. 

744 

745 
* Product over lists via constant "listprod". 

746 

747 
* Theory List: renamed drop_Suc_conv_tl and nth_drop' to 

748 
Cons_nth_drop_Suc. 

58247
98d0f85d247f
enamed drop_Suc_conv_tl and nth_drop' to Cons_nth_drop_Suc
nipkow
parents:
58202
diff
changeset

749 

58626  750 
* New infrastructure for compiling, running, evaluating and testing 
59569  751 
generated code in target languages in HOL/Library/Code_Test. See 
752 
HOL/Codegenerator_Test/Code_Test* for examples. 

58008  753 

60009  754 
* Library/Multiset: 
59813  755 
 Introduced "replicate_mset" operation. 
756 
 Introduced alternative characterizations of the multiset ordering in 

757 
"Library/Multiset_Order". 

59958
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

758 
 Renamed multiset ordering: 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

759 
<# ~> #<# 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

760 
<=# ~> #<=# 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

761 
\<subset># ~> #\<subset># 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

762 
\<subseteq># ~> #\<subseteq># 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

763 
INCOMPATIBILITY. 
59986
f38b94549dc8
introduced new abbreviations for multiset operations (in the hope of getting rid of the old names <, <=, etc.)
blanchet
parents:
59967
diff
changeset

764 
 Introduced abbreviations for illnamed multiset operations: 
f38b94549dc8
introduced new abbreviations for multiset operations (in the hope of getting rid of the old names <, <=, etc.)
blanchet
parents:
59967
diff
changeset

765 
<#, \<subset># abbreviate < (strict subset) 
f38b94549dc8
introduced new abbreviations for multiset operations (in the hope of getting rid of the old names <, <=, etc.)
blanchet
parents:
59967
diff
changeset

766 
<=#, \<le>#, \<subseteq># abbreviate <= (subset or equal) 
f38b94549dc8
introduced new abbreviations for multiset operations (in the hope of getting rid of the old names <, <=, etc.)
blanchet
parents:
59967
diff
changeset

767 
INCOMPATIBILITY. 
59813  768 
 Renamed 
769 
in_multiset_of ~> in_multiset_in_set 

59998
c54d36be22ef
renamed Multiset.fold > fold_mset, Multiset.filter > filter_mset
nipkow
parents:
59991
diff
changeset

770 
Multiset.fold ~> fold_mset 
c54d36be22ef
renamed Multiset.fold > fold_mset, Multiset.filter > filter_mset
nipkow
parents:
59991
diff
changeset

771 
Multiset.filter ~> filter_mset 
59813  772 
INCOMPATIBILITY. 
59949  773 
 Removed mcard, is equal to size. 
59813  774 
 Added attributes: 
775 
image_mset.id [simp] 

776 
image_mset_id [simp] 

777 
elem_multiset_of_set [simp, intro] 

778 
comp_fun_commute_plus_mset [simp] 

779 
comp_fun_commute.fold_mset_insert [OF comp_fun_commute_plus_mset, simp] 

780 
in_mset_fold_plus_iff [iff] 

781 
set_of_Union_mset [simp] 

782 
in_Union_mset_iff [iff] 

783 
INCOMPATIBILITY. 

784 

60009  785 
* Library/Sum_of_Squares: simplified and improved "sos" method. Always 
786 
use local CSDP executable, which is much faster than the NEOS server. 

787 
The "sos_cert" functionality is invoked as "sos" with additional 

788 
argument. Minor INCOMPATIBILITY. 

789 

790 
* HOLDecision_Procs: New counterexample generator quickcheck 

791 
[approximation] for inequalities of transcendental functions. Uses 

792 
hardware floating point arithmetic to randomly discover potential 

60010  793 
counterexamples. Counterexamples are certified with the "approximation" 
60009  794 
method. See HOL/Decision_Procs/ex/Approximation_Quickcheck_Ex.thy for 
795 
examples. 

58990  796 

59354  797 
* HOLProbability: Reworked measurability prover 
60010  798 
 applies destructor rules repeatedly 
59354  799 
 removed application splitting (replaced by destructor rule) 
59569  800 
 added congruence rules to rewrite measure spaces under the sets 
801 
projection 

802 

60009  803 
* New proof method "rewrite" (in theory ~~/src/HOL/Library/Rewrite) for 
804 
singlestep rewriting with subterm selection based on patterns. 

805 

58630  806 

58066  807 
*** ML *** 
808 

60009  809 
* Subtle change of name space policy: undeclared entries are now 
810 
considered inaccessible, instead of accessible via the fullyqualified 

811 
internal name. This mainly affects Name_Space.intern (and derivatives), 

812 
which may produce an unexpected Long_Name.hidden prefix. Note that 

60010  813 
contemporary applications use the strict Name_Space.check (and 
60009  814 
derivatives) instead, which is not affected by the change. Potential 
815 
INCOMPATIBILITY in rare applications of Name_Space.intern. 

59951  816 

60094  817 
* Subtle change of error semantics of Toplevel.proof_of: regular user 
818 
ERROR instead of internal Toplevel.UNDEF. 

819 

59951  820 
* Basic combinators map, fold, fold_map, split_list, apply are available 
821 
as parameterized antiquotations, e.g. @{map 4} for lists of quadruples. 

822 

823 
* Renamed "pairself" to "apply2", in accordance to @{apply 2}. 

824 
INCOMPATIBILITY. 

825 

826 
* Former combinators NAMED_CRITICAL and CRITICAL for central critical 

827 
sections have been discontinued, in favour of the more elementary 

828 
Multithreading.synchronized and its highlevel derivative 

829 
Synchronized.var (which is usually sufficient in applications). Subtle 

830 
INCOMPATIBILITY: synchronized access needs to be atomic and cannot be 

831 
nested. 

832 

60009  833 
* Synchronized.value (ML) is actually synchronized (as in Scala): subtle 
834 
change of semantics with minimal potential for INCOMPATIBILITY. 

59899  835 

59621
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
wenzelm
parents:
59588
diff
changeset

836 
* The main operations to certify logical entities are Thm.ctyp_of and 
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
wenzelm
parents:
59588
diff
changeset

837 
Thm.cterm_of with a local context; oldstyle global theory variants are 
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
wenzelm
parents:
59588
diff
changeset

838 
available as Thm.global_ctyp_of and Thm.global_cterm_of. 
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
wenzelm
parents:
59588
diff
changeset

839 
INCOMPATIBILITY. 
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
wenzelm
parents:
59588
diff
changeset

840 

59582  841 
* Elementary operations in module Thm are no longer pervasive. 
842 
INCOMPATIBILITY, need to use qualified Thm.prop_of, Thm.cterm_of, 

843 
Thm.term_of etc. 

844 

58963
26bf09b95dda
proper context for assume_tac (atac remains as fallback without context);
wenzelm
parents:
58957
diff
changeset

845 
* Proper context for various elementary tactics: assume_tac, 
59498
50b60f501b05
proper context for resolve_tac, eresolve_tac, dresolve_tac, forward_tac etc.;
wenzelm
parents:
59480
diff
changeset

846 
resolve_tac, eresolve_tac, dresolve_tac, forward_tac, match_tac, 
50b60f501b05
proper context for resolve_tac, eresolve_tac, dresolve_tac, forward_tac etc.;
wenzelm
parents:
59480
diff
changeset

847 
compose_tac, Splitter.split_tac etc. INCOMPATIBILITY. 
58956
a816aa3ff391
proper context for compose_tac, Splitter.split_tac (relevant for unify trace options);
wenzelm
parents:
58928
diff
changeset

848 

58066  849 
* Tactical PARALLEL_ALLGOALS is the most common way to refer to 
850 
PARALLEL_GOALS. 

851 

59564
fdc03c8daacc
Goal.prove_multi is superseded by the fully general Goal.prove_common;
wenzelm
parents:
59557
diff
changeset

852 
* Goal.prove_multi is superseded by the fully general Goal.prove_common, 
fdc03c8daacc
Goal.prove_multi is superseded by the fully general Goal.prove_common;
wenzelm
parents:
59557
diff
changeset

853 
which also allows to specify a fork priority. 
fdc03c8daacc
Goal.prove_multi is superseded by the fully general Goal.prove_common;
wenzelm
parents:
59557
diff
changeset

854 

59936
b8ffc3dc9e24
@{command_spec} is superseded by @{command_keyword};
wenzelm
parents:
59926
diff
changeset

855 
* Antiquotation @{command_spec "COMMAND"} is superseded by 
b8ffc3dc9e24
@{command_spec} is superseded by @{command_keyword};
wenzelm
parents:
59926
diff
changeset

856 
@{command_keyword COMMAND} (usually without quotes and with PIDE 
b8ffc3dc9e24
@{command_spec} is superseded by @{command_keyword};
wenzelm
parents:
59926
diff
changeset

857 
markup). Minor INCOMPATIBILITY. 
b8ffc3dc9e24
@{command_spec} is superseded by @{command_keyword};
wenzelm
parents:
59926
diff
changeset

858 

60009  859 
* Cartouches within ML sources are turned into values of type 
860 
Input.source (with formal position information). 

861 

58066  862 

58610  863 
*** System *** 
864 

59951  865 
* The Isabelle tool "update_cartouches" changes theory files to use 
866 
cartouches instead of oldstyle {* verbatim *} or `alt_string` tokens. 

867 

60106  868 
* The Isabelle tool "build" provides new options X, k, x. 
59951  869 

870 
* Discontinued oldfashioned "codegen" tool. Code generation can always 

871 
be externally triggered using an appropriate ROOT file plus a 

872 
corresponding theory. Parametrization is possible using environment 

873 
variables, or ML snippets in the most extreme cases. Minor 

874 
INCOMPATIBILITY. 

58842  875 

59200  876 
* JVM system property "isabelle.threads" determines size of Scala thread 
877 
pool, like Isabelle system option "threads" for ML. 

878 

59201
702e0971d617
added system property isabelle.laf, notably for initial system dialog;
wenzelm
parents:
59200
diff
changeset

879 
* JVM system property "isabelle.laf" determines the default Swing 
702e0971d617
added system property isabelle.laf, notably for initial system dialog;
wenzelm
parents:
59200
diff
changeset

880 
lookandfeel, via internal class name or symbolic name as in the jEdit 
702e0971d617
added system property isabelle.laf, notably for initial system dialog;
wenzelm
parents:
59200
diff
changeset

881 
menu Global Options / Appearance. 
702e0971d617
added system property isabelle.laf, notably for initial system dialog;
wenzelm
parents:
59200
diff
changeset

882 

59951  883 
* Support for Proof General and Isar TTY loop has been discontinued. 
60009  884 
Minor INCOMPATIBILITY, use standard PIDE infrastructure instead. 
59891
9ce697050455
added isabelle build option k, for fast offline checking of theory sources;
wenzelm
parents:
59849
diff
changeset

885 

58610  886 

57695  887 

57452  888 
New in Isabelle2014 (August 2014) 
889 
 

54055  890 

54702
3daeba5130f0
added document antiquotation @{url}, which produces formal markup for LaTeX and PIDE;
wenzelm
parents:
54688
diff
changeset

891 
*** General *** 
3daeba5130f0
added document antiquotation @{url}, which produces formal markup for LaTeX and PIDE;
wenzelm
parents:
54688
diff
changeset

892 

57452  893 
* Support for official Standard ML within the Isabelle context. 
894 
Command 'SML_file' reads and evaluates the given Standard ML file. 

895 
Toplevel bindings are stored within the theory context; the initial 

896 
environment is restricted to the Standard ML implementation of 

897 
Poly/ML, without the addons of Isabelle/ML. Commands 'SML_import' 

898 
and 'SML_export' allow to exchange toplevel bindings between the two 

899 
separate environments. See also ~~/src/Tools/SML/Examples.thy for 

900 
some examples. 

56499
7e0178c84994
allow text cartouches in regular outer syntax categories "text" and "altstring";
wenzelm
parents:
56450
diff
changeset

901 

57504  902 
* Standard tactics and proof methods such as "clarsimp", "auto" and 
903 
"safe" now preserve equality hypotheses "x = expr" where x is a free 

904 
variable. Locale assumptions and chained facts containing "x" 

905 
continue to be useful. The new method "hypsubst_thin" and the 

906 
configuration option "hypsubst_thin" (within the attribute name space) 

907 
restore the previous behavior. INCOMPATIBILITY, especially where 

908 
induction is done after these methods or when the names of free and 

909 
bound variables clash. As first approximation, old proofs may be 

910 
repaired by "using [[hypsubst_thin = true]]" in the critical spot. 

911 

56232  912 
* More static checking of proof methods, which allows the system to 
913 
form a closure over the concrete syntax. Method arguments should be 

914 
processed in the original proof context as far as possible, before 

915 
operating on the goal state. In any case, the standard discipline for 

916 
subgoaladdressing needs to be observed: no subgoals or a subgoal 

917 
number that is out of range produces an empty result sequence, not an 

918 
exception. Potential INCOMPATIBILITY for nonconformant tactical 

919 
proof tools. 

920 

57452  921 
* Lexical syntax (inner and outer) supports text cartouches with 
922 
arbitrary nesting, and without escapes of quotes etc. The Prover IDE 

923 
supports input via ` (backquote). 

924 

925 
* The outer syntax categories "text" (for formal comments and document 

926 
markup commands) and "altstring" (for literal fact references) allow 

927 
cartouches as well, in addition to the traditional mix of quotations. 

928 

929 
* Syntax of document antiquotation @{rail} now uses \<newline> instead 

930 
of "\\", to avoid the optical illusion of escaped backslash within 

57491  931 
string token. General renovation of its syntax using text cartouches. 
57452  932 
Minor INCOMPATIBILITY. 
933 

934 
* Discontinued legacy_isub_isup, which was a temporary workaround for 

935 
Isabelle/ML in Isabelle20131. The prover process no longer accepts 

936 
old identifier syntax with \<^isub> or \<^isup>. Potential 

937 
INCOMPATIBILITY. 

938 

939 
* Document antiquotation @{url} produces markup for the given URL, 

940 
which results in an active hyperlink within the text. 

941 

942 
* Document antiquotation @{file_unchecked} is like @{file}, but does 

943 
not check existence within the filesystem. 

944 

945 
* Updated and extended manuals: codegen, datatypes, implementation, 

946 
isarref, jedit, system. 

57423
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

947 

54702
3daeba5130f0
added document antiquotation @{url}, which produces formal markup for LaTeX and PIDE;
wenzelm
parents:
54688
diff
changeset

948 

54533  949 
*** Prover IDE  Isabelle/Scala/jEdit *** 
950 

57650  951 
* Improved Document panel: simplified interaction where every single 
57452  952 
mouse click (re)opens document via desktop environment or as jEdit 
953 
buffer. 

954 

955 
* Support for Navigator plugin (with toolbar buttons), with connection 

956 
to PIDE hyperlinks. 

957 

958 
* Auxiliary files ('ML_file' etc.) are managed by the Prover IDE. 

959 
Open text buffers take precedence over copies within the filesystem. 

960 

961 
* Improved support for Isabelle/ML, with jEdit mode "isabelleml" for 

962 
auxiliary ML files. 

57423
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

963 

96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

964 
* Improved syntactic and semantic completion mechanism, with simple 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

965 
templates, completion language context, namespace completion, 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

966 
filename completion, spellchecker completion. 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

967 

96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

968 
* Refined GUI popup for completion: more robust key/mouse event 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

969 
handling and propagation to enclosing text area  avoid loosing 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

970 
keystrokes with slow / remote graphics displays. 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

971 

57833
2c2bae3da1c2
completion popup supports both ENTER and TAB (default);
wenzelm
parents:
57826
diff
changeset

972 
* Completion popup supports both ENTER and TAB (default) to select an 
2c2bae3da1c2
completion popup supports both ENTER and TAB (default);
wenzelm
parents:
57826
diff
changeset

973 
item, depending on Isabelle options. 
2c2bae3da1c2
completion popup supports both ENTER and TAB (default);
wenzelm
parents:
57826
diff
changeset

974 

57423
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

975 
* Refined insertion of completion items wrt. jEdit text: multiple 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

976 
selections, rectangular selections, rectangular selection as "tall 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

977 
caret". 
56342  978 

56580  979 
* Integrated spellchecker for document text, comments etc. with 
57423
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

980 
completion popup and contextmenu. 
56554  981 

56879
ee2b61f37ad9
renamed "Find" to "Query", with more general operations;
wenzelm
parents:
56851
diff
changeset

982 
* More general "Query" panel supersedes "Find" panel, with GUI access 
ee2b61f37ad9
renamed "Find" to "Query", with more general operations;
wenzelm
parents:
56851
diff
changeset

983 
to commands 'find_theorems' and 'find_consts', as well as print 
ee2b61f37ad9
renamed "Find" to "Query", with more general operations;
wenzelm
parents:
56851
diff
changeset

984 
operations for the context. Minor incompatibility in keyboard 
ee2b61f37ad9
renamed "Find" to "Query", with more general operations;
wenzelm
parents:
56851
diff
changeset

985 
shortcuts etc.: replace action isabellefind by isabellequery. 
56761  986 

56901  987 
* Search field for all output panels ("Output", "Query", "Info" etc.) 
988 
to highlight text via regular expression. 

989 

54881  990 
* Option "jedit_print_mode" (see also "Plugin Options / Isabelle / 
991 
General") allows to specify additional print modes for the prover 

992 
process, without requiring oldfashioned commandline invocation of 

993 
"isabelle jedit m MODE". 

994 

56505  995 
* More support for remote files (e.g. http) using standard Java 
996 
networking operations instead of jEdit virtual filesystems. 

997 

57822  998 
* Empty editors buffers that are no longer required (e.g.\ via theory 
999 
imports) are automatically removed from the document model. 

1000 

57869  1001 
* Improved monitor panel. 
1002 

56838  1003 
* Improved Console/Scala plugin: more uniform scala.Console output, 
1004 
more robust treatment of threads and interrupts. 

1005 

56939  1006 
* Improved management of dockable windows: clarified keyboard focus 
1007 
and window placement wrt. main editor view; optional menu item to 

1008 
"Detach" a copy where this makes sense. 

1009 

57452  1010 
* New Simplifier Trace panel provides an interactive view of the 
57591
8c095aef6769
clarified "simp_trace_new" and corresponding isarref section;
wenzelm
parents:
57532
diff
changeset

1011 
simplification process, enabled by the "simp_trace_new" attribute 
57452  1012 
within the context. 
1013 

1014 

55001  1015 
*** Pure *** 
1016 

57504  1017 
* Lowlevel typeclass commands 'classes', 'classrel', 'arities' have 
1018 
been discontinued to avoid the danger of nontrivial axiomatization 

1019 
that is not immediately visible. INCOMPATIBILITY, use regular 

1020 
'instance' command with proof. The required OFCLASS(...) theorem 

1021 
might be postulated via 'axiomatization' beforehand, or the proof 

1022 
finished trivially if the underlying class definition is made vacuous 

1023 
(without any assumptions). See also Isabelle/ML operations 

1024 
Axclass.class_axiomatization, Axclass.classrel_axiomatization, 

1025 
Axclass.arity_axiomatization. 

1026 

56245  1027 
* Basic constants of Pure use more conventional names and are always 
1028 
qualified. Rare INCOMPATIBILITY, but with potentially serious 

1029 
consequences, notably for tools in Isabelle/ML. The following 

1030 
renaming needs to be applied: 

1031 

1032 
== ~> Pure.eq 

1033 
==> ~> Pure.imp 

1034 
all ~> Pure.all 

1035 
TYPE ~> Pure.type 

1036 
dummy_pattern ~> Pure.dummy_pattern 

1037 

1038 
Systematic porting works by using the following theory setup on a 

1039 
*previous* Isabelle version to introduce the new name accesses for the 

1040 
old constants: 

1041 

1042 
setup {* 

1043 
fn thy => thy 

1044 
> Sign.root_path 

1045 
> Sign.const_alias (Binding.qualify true "Pure" @{binding eq}) "==" 

1046 
> Sign.const_alias (Binding.qualify true "Pure" @{binding imp}) "==>" 

1047 
> Sign.const_alias (Binding.qualify true "Pure" @{binding all}) "all" 

1048 
> Sign.restore_naming thy 

1049 
*} 

1050 

1051 
Thus ML antiquotations like @{const_name Pure.eq} may be used already. 

1052 
Later the application is moved to the current Isabelle version, and 

1053 
the auxiliary aliases are deleted. 

1054 

55143
04448228381d
explicit eigencontext for attributes "where", "of", and corresponding read_instantiate, instantiate_tac;
wenzelm
parents:
55139
diff
changeset

1055 
* Attributes "where" and "of" allow an optional context of local 
04448228381d
explicit eigencontext for attributes "where", "of", and corresponding read_instantiate, instantiate_tac;
wenzelm
parents:
55139
diff
changeset

1056 
variables ('for' declaration): these variables become schematic in the 
04448228381d
explicit eigencontext for attributes "where", "of", and corresponding read_instantiate, instantiate_tac;
wenzelm
parents:
55139
diff
changeset

1057 
instantiated theorem. 
04448228381d
explicit eigencontext for attributes "where", "of", and corresponding read_instantiate, instantiate_tac;
wenzelm
parents:
55139
diff
changeset

1058 

55152  1059 
* Obsolete attribute "standard" has been discontinued (legacy since 
1060 
Isabelle2012). Potential INCOMPATIBILITY, use explicit 'for' context 

1061 
where instantiations with schematic variables are intended (for 

1062 
declaration commands like 'lemmas' or attributes like "of"). The 

1063 
following temporary definition may help to port old applications: 

1064 

1065 
attribute_setup standard = 

1066 
"Scan.succeed (Thm.rule_attribute (K Drule.export_without_context))" 

1067 

55001  1068 
* More thorough check of proof context for goal statements and 
55006  1069 
attributed fact expressions (concerning background theory, declared 
1070 
hyps). Potential INCOMPATIBILITY, tools need to observe standard 

1071 
context discipline. See also Assumption.add_assumes and the more 

1072 
primitive Thm.assume_hyps. 

55001  1073 

55108
0b7a0c1fdf7e
inner syntax token language allows regular quoted strings;
wenzelm
parents:
55049
diff
changeset

1074 
* Inner syntax token language allows regular quoted strings "..." 
0b7a0c1fdf7e
inner syntax token language allows regular quoted strings;
wenzelm
parents:
55049
diff
changeset

1075 
(only makes sense in practice, if outer syntax is delimited 
57452  1076 
differently, e.g. via cartouches). 
1077 

57504  1078 
* Command 'print_term_bindings' supersedes 'print_binds' for clarity, 
1079 
but the latter is retained some time as Proof General legacy. 

1080 

57452  1081 
* Code generator preprocessor: explicit control of simp tracing on a 
1082 
perconstant basis. See attribute "code_preproc". 

57430
020cea57eaa4
tracing facilities for the code generator preprocessor
haftmann
parents:
57423
diff
changeset

1083 

55001  1084 

54227
63b441f49645
moving generic lemmas out of theory parity, disregarding some unused auxiliary lemmas;
haftmann
parents:
54055
diff
changeset

1085 
*** HOL *** 
63b441f49645
moving generic lemmas out of theory parity, disregarding some unused auxiliary lemmas;
haftmann
parents:
54055
diff
changeset

1086 

57504  1087 
* Code generator: enforce case of identifiers only for strict target 
1088 
language requirements. INCOMPATIBILITY. 

1089 

1090 
* Code generator: explicit proof contexts in many ML interfaces. 

1091 
INCOMPATIBILITY. 

1092 

1093 
* Code generator: minimize exported identifiers by default. Minor 

1094 
INCOMPATIBILITY. 

1095 

1096 
* Code generation for SML and OCaml: dropped arcane "no_signatures" 

1097 
option. Minor INCOMPATIBILITY. 

1098 

1099 
* "declare [[code abort: ...]]" replaces "code_abort ...". 

1100 
INCOMPATIBILITY. 

1101 

1102 
* "declare [[code drop: ...]]" drops all code equations associated 

1103 
with the given constants. 

1104 

1105 
* Code generations are provided for make, fields, extend and truncate 

1106 
operations on records. 

57437  1107 

57452  1108 
* Command and antiquotation "value" are now hardcoded against nbe and 
1109 
ML. Minor INCOMPATIBILITY. 

1110 

57504  1111 
* Renamed command 'enriched_type' to 'functor'. INCOMPATIBILITY. 
1112 

1113 
* The symbol "\<newline>" may be used within char or string literals 

1114 
to represent (Char Nibble0 NibbleA), i.e. ASCII newline. 

1115 

1116 
* Qualified String.implode and String.explode. INCOMPATIBILITY. 

56923  1117 

57452  1118 
* Simplifier: Enhanced solver of preconditions of rewrite rules can 
1119 
now deal with conjunctions. For help with converting proofs, the old 

1120 
behaviour of the simplifier can be restored like this: declare/using 

1121 
[[simp_legacy_precond]]. This configuration option will disappear 

1122 
again in the future. INCOMPATIBILITY. 

56073
29e308b56d23
enhanced simplifier solver for preconditions of rewrite rule, can now deal with conjunctions
nipkow
parents:
56072
diff
changeset

1123 

55139  1124 
* Simproc "finite_Collect" is no longer enabled by default, due to 
1125 
spurious crashes and other surprises. Potential INCOMPATIBILITY. 

1126 

57452  1127 
* Moved new (co)datatype package and its dependencies from session 
1128 
"HOLBNF" to "HOL". The commands 'bnf', 'wrap_free_constructors', 

1129 
'datatype_new', 'codatatype', 'primcorec', 'primcorecursive' are now 

1130 
part of theory "Main". 

1131 

55098  1132 
Theory renamings: 
1133 
FunDef.thy ~> Fun_Def.thy (and Fun_Def_Base.thy) 

1134 
Library/Wfrec.thy ~> Wfrec.thy 

1135 
Library/Zorn.thy ~> Zorn.thy 

1136 
Cardinals/Order_Relation.thy ~> Order_Relation.thy 

1137 
Library/Order_Union.thy ~> Cardinals/Order_Union.thy 

1138 
Cardinals/Cardinal_Arithmetic_Base.thy ~> BNF_Cardinal_Arithmetic.thy 

1139 
Cardinals/Cardinal_Order_Relation_Base.thy ~> BNF_Cardinal_Order_Relation.thy 

1140 
Cardinals/Constructions_on_Wellorders_Base.thy ~> BNF_Constructions_on_Wellorders.thy 

1141 
Cardinals/Wellorder_Embedding_Base.thy ~> BNF_Wellorder_Embedding.thy 

1142 
Cardinals/Wellorder_Relation_Base.thy ~> BNF_Wellorder_Relation.thy 

1143 
BNF/Ctr_Sugar.thy ~> Ctr_Sugar.thy 

1144 
BNF/Basic_BNFs.thy ~> Basic_BNFs.thy 

1145 
BNF/BNF_Comp.thy ~> BNF_Comp.thy 

1146 
BNF/BNF_Def.thy ~> BNF_Def.thy 

1147 
BNF/BNF_FP_Base.thy ~> BNF_FP_Base.thy 

1148 
BNF/BNF_GFP.thy ~> BNF_GFP.thy 

1149 
BNF/BNF_LFP.thy ~> BNF_LFP.thy 

1150 
BNF/BNF_Util.thy ~> BNF_Util.thy 

1151 
BNF/Coinduction.thy ~> Coinduction.thy 

1152 
BNF/More_BNFs.thy ~> Library/More_BNFs.thy 

1153 
BNF/Countable_Type.thy ~> Library/Countable_Set_Type.thy 

1154 
BNF/Examples/* ~> BNF_Examples/* 

57452  1155 

55098  1156 
New theories: 
1157 
Wellorder_Extension.thy (split from Zorn.thy) 

1158 
Library/Cardinal_Notations.thy 

56942  1159 
Library/BNF_Axomatization.thy 
55098  1160 
BNF_Examples/Misc_Primcorec.thy 
1161 
BNF_Examples/Stream_Processor.thy 

57452  1162 

55519  1163 
Discontinued theories: 
55098  1164 
BNF/BNF.thy 
1165 
BNF/Equiv_Relations_More.thy 

57452  1166 

1167 
INCOMPATIBILITY. 

55098  1168 

56118
d3967fdc800a
updated NEWS and CONTRIBUTORS (BNF, SMT2, Sledgehammer)
blanchet
parents:
56076
diff
changeset

1169 
* New (co)datatype package: 
57452  1170 
 Command 'primcorec' is fully implemented. 
1171 
 Command 'datatype_new' generates size functions ("size_xxx" and 

1172 
"size") as required by 'fun'. 

1173 
 BNFs are integrated with the Lifting tool and newstyle 

1174 
(co)datatypes with Transfer. 

1175 
 Renamed commands: 

55875  1176 
datatype_new_compat ~> datatype_compat 
1177 
primrec_new ~> primrec 

1178 
wrap_free_constructors ~> free_constructors 

1179 
INCOMPATIBILITY. 

57452  1180 
 The generated constants "xxx_case" and "xxx_rec" have been renamed 
55875  1181 
"case_xxx" and "rec_xxx" (e.g., "prod_case" ~> "case_prod"). 
1182 
INCOMPATIBILITY. 

57452  1183 
 The constant "xxx_(un)fold" and related theorems are no longer 
1184 
generated. Use "xxx_(co)rec" or define "xxx_(un)fold" manually 

1185 
using "prim(co)rec". 

55875  1186 
INCOMPATIBILITY. 
57452  1187 
 No discriminators are generated for nullary constructors by 
1188 
default, eliminating the need for the odd "=:" syntax. 

57091  1189 
INCOMPATIBILITY. 
57452  1190 
 No discriminators or selectors are generated by default by 
57094
589ec121ce1a
don't generate discriminators and selectors for 'datatype_new' unless the user asked for it
blanchet
parents:
57091
diff
changeset

1191 
"datatype_new", unless custom names are specified or the new 
589ec121ce1a
don't generate discriminators and selectors for 'datatype_new' unless the user asked for it
blanchet
parents:
57091
diff
changeset

1192 
"discs_sels" option is passed. 
589ec121ce1a
don't generate discriminators and selectors for 'datatype_new' unless the user asked for it
blanchet
parents:
57091
diff
changeset

1193 
INCOMPATIBILITY. 
55875  1194 

55643  1195 
* Old datatype package: 
57452  1196 
 The generated theorems "xxx.cases" and "xxx.recs" have been 
1197 
renamed "xxx.case" and "xxx.rec" (e.g., "sum.cases" > 

1198 
"sum.case"). INCOMPATIBILITY. 

1199 
 The generated constants "xxx_case", "xxx_rec", and "xxx_size" have 

1200 
been renamed "case_xxx", "rec_xxx", and "size_xxx" (e.g., 

1201 
"prod_case" ~> "case_prod"). INCOMPATIBILITY. 

1202 

1203 
* The types "'a list" and "'a option", their set and map functions, 

1204 
their relators, and their selectors are now produced using the new 

1205 
BNFbased datatype package. 

1206 

55519  1207 
Renamed constants: 
1208 
Option.set ~> set_option 

1209 
Option.map ~> map_option 

55525  1210 
option_rel ~> rel_option 
57452  1211 

55519  1212 
Renamed theorems: 
55585  1213 
set_def ~> set_rec[abs_def] 
55519  1214 
map_def ~> map_rec[abs_def] 
1215 
Option.map_def ~> map_option_case[abs_def] (with "case_option" instead of "rec_option") 

56652  1216 
option.recs ~> option.rec 
55524
f41ef840f09d
folded 'list_all2' with the relator generated by 'datatype_new'
blanchet
parents:
55519
diff
changeset

1217 
list_all2_def ~> list_all2_iff 
55585  1218 
set.simps ~> set_simps (or the slightly different "list.set") 
55519  1219 
map.simps ~> list.map 
1220 
hd.simps ~> list.sel(1) 

1221 
tl.simps ~> list.sel(23) 

1222 
the.simps ~> option.sel 

57452  1223 

1224 
INCOMPATIBILITY. 

55519  1225 

55933  1226 
* The following map functions and relators have been renamed: 
55939  1227 
sum_map ~> map_sum 
1228 
map_pair ~> map_prod 

55944  1229 
prod_rel ~> rel_prod 
55943  1230 
sum_rel ~> rel_sum 
55945  1231 
fun_rel ~> rel_fun 
55942  1232 
set_rel ~> rel_set 
1233 
filter_rel ~> rel_filter 

57452  1234 
fset_rel ~> rel_fset (in "src/HOL/Library/FSet.thy") 
1235 
cset_rel ~> rel_cset (in "src/HOL/Library/Countable_Set_Type.thy") 

1236 
vset ~> rel_vset (in "src/HOL/Library/Quotient_Set.thy") 

1237 

1238 
INCOMPATIBILITY. 

1239 

57826  1240 
* Lifting and Transfer: 
1241 
 a type variable as a raw type is supported 

1242 
 stronger reflexivity prover 

1243 
 rep_eq is always generated by lift_definition 

57856  1244 
 setup for Lifting/Transfer is now automated for BNFs 
57826  1245 
+ holds for BNFs that do not contain a dead variable 
57856  1246 
+ relator_eq, relator_mono, relator_distr, relator_domain, 
57826  1247 
relator_eq_onp, quot_map, transfer rules for bi_unique, bi_total, 
1248 
right_unique, right_total, left_unique, left_total are proved 

1249 
automatically 

1250 
+ definition of a predicator is generated automatically 

1251 
+ simplification rules for a predicator definition are proved 

1252 
automatically for datatypes 

1253 
 consolidation of the setup of Lifting/Transfer 

57856  1254 
+ property that a relator preservers reflexivity is not needed any 
57826  1255 
more 
1256 
Minor INCOMPATIBILITY. 

57856  1257 
+ left_total and left_unique rules are now transfer rules 
57826  1258 
(reflexivity_rule attribute not needed anymore) 
1259 
INCOMPATIBILITY. 

57856  1260 
+ Domainp does not have to be a separate assumption in 
57826  1261 
relator_domain theorems (=> more natural statement) 
1262 
INCOMPATIBILITY. 

1263 
 registration of code equations is more robust 

1264 
Potential INCOMPATIBILITY. 

1265 
 respectfulness proof obligation is preprocessed to a more readable 

1266 
form 

1267 
Potential INCOMPATIBILITY. 

1268 
 eq_onp is always unfolded in respectfulness proof obligation 

1269 
Potential INCOMPATIBILITY. 

57856  1270 
 unregister lifting setup for Code_Numeral.integer and 
57826  1271 
Code_Numeral.natural 
1272 
Potential INCOMPATIBILITY. 

1273 
 Lifting.invariant > eq_onp 

1274 
INCOMPATIBILITY. 

57856  1275 

57508  1276 
* New internal SAT solver "cdclite" that produces models and proof 
1277 
traces. This solver replaces the internal SAT solvers "enumerate" and 

1278 
"dpll". Applications that explicitly used one of these two SAT 

1279 
solvers should use "cdclite" instead. In addition, "cdclite" is now 

1280 
the default SAT solver for the "sat" and "satx" proof methods and 

1281 
corresponding tactics; the old default can be restored using "declare 

1282 
[[sat_solver = zchaff_with_proofs]]". Minor INCOMPATIBILITY. 

1283 

1284 
* SMT module: A new version of the SMT module, temporarily called 

1285 
"SMT2", uses SMTLIB 2 and supports recent versions of Z3 (e.g., 

1286 
4.3). The new proof method is called "smt2". CVC3 and CVC4 are also 

1287 
supported as oracles. Yices is no longer supported, because no version 

1288 
of the solver can handle both SMTLIB 2 and quantifiers. 

1289 

1290 
* Activation of Z3 now works via "z3_non_commercial" system option 

1291 
(without requiring restart), instead of former settings variable 

1292 
"Z3_NON_COMMERCIAL". The option can be edited in Isabelle/jEdit menu 

1293 
Plugin Options / Isabelle / General. 

1294 

1295 
* Sledgehammer: 

1296 
 Z3 can now produce Isar proofs. 

1297 
 MaSh overhaul: 

57532  1298 
. New SMLbased learning algorithms eliminate the dependency on 
57508  1299 
Python and increase performance and reliability. 
1300 
. MaSh and MeSh are now used by default together with the 

1301 
traditional MePo (MengPaulson) relevance filter. To disable 

1302 
MaSh, set the "MaSh" system option in Isabelle/jEdit Plugin 

1303 
Options / Isabelle / General to "none". 

1304 
 New option: 

1305 
smt_proofs 

1306 
 Renamed options: 

1307 
isar_compress ~> compress 

1308 
isar_try0 ~> try0 

1309 

1310 
INCOMPATIBILITY. 

1311 

1312 
* Removed solvers remote_cvc3 and remote_z3. Use cvc3 and z3 instead. 

1313 

1314 
* Nitpick: 

1315 
 Fixed soundness bug whereby mutually recursive datatypes could 

1316 
take infinite values. 

1317 
 Fixed soundness bug with lowlevel number functions such as 

1318 
"Abs_Integ" and "Rep_Integ". 

1319 
 Removed "std" option. 

1320 
 Renamed "show_datatypes" to "show_types" and "hide_datatypes" to 

1321 
"hide_types". 

1322 

1323 
* Metis: Removed legacy proof method 'metisFT'. Use 'metis 

1324 
(full_types)' instead. INCOMPATIBILITY. 

1325 

1326 
* Try0: Added 'algebra' and 'meson' to the set of proof methods. 

1327 

1328 
* Adjustion of INF and SUP operations: 

1329 
 Elongated constants INFI and SUPR to INFIMUM and SUPREMUM. 

1330 
 Consolidated theorem names containing INFI and SUPR: have INF and 

1331 
SUP instead uniformly. 

1332 
 More aggressive normalization of expressions involving INF and Inf 

1333 
or SUP and Sup. 

1334 
 INF_image and SUP_image do not unfold composition. 

1335 
 Dropped facts INF_comp, SUP_comp. 

1336 
 Default congruence rules strong_INF_cong and strong_SUP_cong, with 

1337 
simplifier implication in premises. Generalize and replace former 

1338 
INT_cong, SUP_cong 

1339 

1340 
INCOMPATIBILITY. 

1341 

1342 
* SUP and INF generalized to conditionally_complete_lattice. 

1343 

1344 
* Swapped orientation of facts image_comp and vimage_comp: 

1345 

1346 
image_compose ~> image_comp [symmetric] 

1347 
image_comp ~> image_comp [symmetric] 

1348 
vimage_compose ~> vimage_comp [symmetric] 

1349 
vimage_comp ~> vimage_comp [symmetric] 

1350 

1351 
INCOMPATIBILITY. 

1352 

57504  1353 
* Theory reorganization: split of Big_Operators.thy into 
1354 
Groups_Big.thy and Lattices_Big.thy. 

55098  1355 

57418  1356 
* Consolidated some facts about big group operators: 
1357 

1358 
setsum_0' ~> setsum.neutral 

1359 
setsum_0 ~> setsum.neutral_const 

1360 
setsum_addf ~> setsum.distrib 

1361 
setsum_cartesian_product ~> setsum.cartesian_product 

1362 
setsum_cases ~> setsum.If_cases 

1363 
setsum_commute ~> setsum.commute 

1364 
setsum_cong ~> setsum.cong 

1365 
setsum_delta ~> setsum.delta 

1366 
setsum_delta' ~> setsum.delta' 

1367 
setsum_diff1' ~> setsum.remove 

1368 
setsum_empty ~> setsum.empty 

1369 
setsum_infinite ~> setsum.infinite 

1370 
setsum_insert ~> setsum.insert 

1371 
setsum_inter_restrict'' ~> setsum.inter_filter 

1372 
setsum_mono_zero_cong_left ~> setsum.mono_neutral_cong_left 

1373 
setsum_mono_zero_cong_right ~> setsum.mono_neutral_cong_right 

1374 
setsum_mono_zero_left ~> setsum.mono_neutral_left 

1375 
setsum_mono_zero_right ~> setsum.mono_neutral_right 

1376 
setsum_reindex ~> setsum.reindex 

1377 
setsum_reindex_cong ~> setsum.reindex_cong 

1378 
setsum_reindex_nonzero ~> setsum.reindex_nontrivial 

1379 
setsum_restrict_set ~> setsum.inter_restrict 

1380 
setsum_Plus ~> setsum.Plus 

1381 
setsum_setsum_restrict ~> setsum.commute_restrict 

1382 
setsum_Sigma ~> setsum.Sigma 

1383 
setsum_subset_diff ~> setsum.subset_diff 

1384 
setsum_Un_disjoint ~> setsum.union_disjoint 

1385 
setsum_UN_disjoint ~> setsum.UNION_disjoint 

1386 
setsum_Un_Int ~> setsum.union_inter 

1387 
setsum_Union_disjoint ~> setsum.Union_disjoint 

1388 
setsum_UNION_zero ~> setsum.Union_comp 

1389 
setsum_Un_zero ~> setsum.union_inter_neutral 

1390 
strong_setprod_cong ~> setprod.strong_cong 

1391 
strong_setsum_cong ~> setsum.strong_cong 

1392 
setprod_1' ~> setprod.neutral 

1393 
setprod_1 ~> setprod.neutral_const 

1394 
setprod_cartesian_product ~> setprod.cartesian_product 

1395 
setprod_cong ~> setprod.cong 

1396 
setprod_delta ~> setprod.delta 

1397 
setprod_delta' ~> setprod.delta' 

1398 
setprod_empty ~> setprod.empty 

1399 
setprod_infinite ~> setprod.infinite 

1400 
setprod_insert ~> setprod.insert 

1401 
setprod_mono_one_cong_left ~> setprod.mono_neutral_cong_left 

1402 
setprod_mono_one_cong_right ~> setprod.mono_neutral_cong_right 

1403 
setprod_mono_one_left ~> setprod.mono_neutral_left 

1404 
setprod_mono_one_right ~> setprod.mono_neutral_right 

1405 
setprod_reindex ~> setprod.reindex 

1406 
setprod_reindex_cong ~> setprod.reindex_cong 

1407 
setprod_reindex_nonzero ~> setprod.reindex_nontrivial 

1408 
setprod_Sigma ~> setprod.Sigma 

1409 
setprod_subset_diff ~> setprod.subset_diff 

1410 
setprod_timesf ~> setprod.distrib 

1411 
setprod_Un2 ~> setprod.union_diff2 

1412 
setprod_Un_disjoint ~> setprod.union_disjoint 

1413 
setprod_UN_disjoint ~> setprod.UNION_disjoint 
