author  wenzelm 
Mon, 12 Oct 2015 17:10:36 +0200  
changeset 61405  d2ce32c5793a 
parent 61384  9f5145281888 
child 61424  c3658c18b7bc 
permissions  rwrr 
57491  1 
Isabelle NEWS  history of userrelevant changes 
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================================================= 

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(Note: Isabelle/jEdit shows a treeview of this file in Sidekick.) 
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60138  7 
New in this Isabelle version 
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9 

61337  10 
*** General *** 
11 

12 
* Toplevel theorem statements have been simplified as follows: 

13 

14 
theorems ~> lemmas 

15 
schematic_lemma ~> schematic_goal 

16 
schematic_theorem ~> schematic_goal 

17 
schematic_corollary ~> schematic_goal 

18 

19 
Commandline tool "isabelle update_theorems" updates theory sources 

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accordingly. 

21 

61338  22 
* Toplevel theorem statement 'proposition' is another alias for 
23 
'theorem'. 

24 

61380  25 
* HTML presentation uses the standard IsabelleText font and Unicode 
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rendering of Isabelle symbols like Isabelle/Scala/jEdit. The former 

27 
print mode "HTML" looses its special meaning. 

28 

61337  29 

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improved scheduling for urgent tasks, using farm of replacement threads (may lead to factor 2 overloading, but CPUs are usually hyperthreaded);
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*** Prover IDE  Isabelle/Scala/jEdit *** 
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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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60986  35 
* IDE support for the sourcelevel debugger of Poly/ML, to work with 
60984  36 
Isabelle/ML and official Standard ML. Configuration option "ML_debugger" 
37 
and commands 'ML_file_debug', 'ML_file_no_debug', 'SML_file_debug', 

38 
'SML_file_no_debug' control compilation of sources with debugging 

39 
information. The Debugger panel allows to set breakpoints (via context 

40 
menu), step through stopped threads, evaluate local ML expressions etc. 

41 
At least one Debugger view needs to be active to have any effect on the 

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running ML program. 

43 

61173  44 
* The main Isabelle executable is managed as singleinstance Desktop 
45 
application uniformly on all platforms: Linux, Windows, Mac OS X. 

61170  46 

61198  47 
* The text overview column (status of errors, warnings etc.) is updated 
48 
asynchronously, leading to much better editor reactivity. Moreover, the 

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full document node content is taken into account. 

50 

61218  51 
* The State panel manages explicit proof state output, with jEdit action 
52 
"isabelle.updatestate" (shortcut S+ENTER) to trigger update according 

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to cursor position. Option "editor_output_state" controls implicit proof 

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state output in the Output panel: suppressing this reduces resource 

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requirements of prover time and GUI space. 

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61405  58 
*** Document preparation *** 
59 

60 
* Isabelle control symbols for markup and formatting: 

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62 
\<^smallskip> \smallskip 

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\<^medskip> \medskip 

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\<^bigskip> \bigskip 

65 

66 
\<^item> \item (itemize) 

67 
\<^enum> \item (enumeration) 

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60406  70 
*** Isar *** 
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* Command 'obtain' binds term abbreviations (via 'is' patterns) in the 

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proof body as well, abstracted over relevant parameters. 

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* Improved typeinference for theorem statement 'obtains': separate 
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parameter scope for of each clause. 
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* Term abbreviations via 'is' patterns also work for schematic 
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statements: result is abstracted over unknowns. 
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60414  81 
* Local goals ('have', 'show', 'hence', 'thus') allow structured 
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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  85 

86 
have result: "C x y" 

87 
if "A x" and "B y" 

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

89 
<proof> 

90 

60449  91 
The local assumptions are bound to the name "that". The result is 
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exported from context of the statement as usual. The above roughly 

60414  93 
corresponds to a raw proof block like this: 
94 

95 
{ 

96 
fix x :: 'a and y :: 'a 

60449  97 
assume that: "A x" "B y" 
60414  98 
have "C x y" <proof> 
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} 

100 
note result = this 

60406  101 

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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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60595  105 
* The meaning of 'show' with Pure rule statements has changed: premises 
106 
are treated in the sense of 'assume', instead of 'presume'. This means, 

107 
a goal like "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" can be solved completely as follows: 

108 

109 
show "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" 

110 

111 
or: 

112 

113 
show "C x" if "A x" "B x" for x 

114 

115 
Rare INCOMPATIBILITY, the old behaviour may be recovered as follows: 

116 

117 
show "C x" when "A x" "B x" for x 

118 

60406  119 
* New command 'supply' supports fact definitions during goal refinement 
120 
('apply' scripts). 

121 

60459  122 
* New command 'consider' states rules for generalized elimination and 
123 
case splitting. This is like a toplevel statement "theorem obtains" used 

124 
within a proof body; or like a multibranch 'obtain' without activation 

125 
of the local context elements yet. 

126 

60455  127 
* Proof method "cases" allows to specify the rule as first entry of 
128 
chained facts. This is particularly useful with 'consider': 

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

131 
then have something 

132 
proof cases 

133 
case a 

134 
then show ?thesis <proof> 

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next 

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case b 

137 
then show ?thesis <proof> 

138 
next 

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case c 

140 
then show ?thesis <proof> 

141 
qed 

142 

60565  143 
* Command 'case' allows fact name and attribute specification like this: 
144 

145 
case a: (c xs) 

146 
case a [attributes]: (c xs) 

147 

148 
Facts that are introduced by invoking the case context are uniformly 

149 
qualified by "a"; the same name is used for the cumulative fact. The old 

150 
form "case (c xs) [attributes]" is no longer supported. Rare 

151 
INCOMPATIBILITY, need to adapt uses of case facts in exotic situations, 

152 
and always put attributes in front. 

153 

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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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60631  159 
* Command 'subgoal' allows to impose some structure on backward 
160 
refinements, to avoid proof scripts degenerating into long of 'apply' 

161 
sequences. Further explanations and examples are given in the isarref 

162 
manual. 

163 

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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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example: 
60617  167 

168 
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" 

60622  169 
and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z" 
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proof goal_cases 
60622  171 
case (1 x) 
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then show ?case using \<open>A x\<close> \<open>B x\<close> sorry 

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next 

174 
case (2 y z) 

175 
then show ?case using \<open>U y\<close> \<open>V z\<close> sorry 

176 
qed 

177 

178 
lemma "\<And>x. A x \<Longrightarrow> B x \<Longrightarrow> C x" 

179 
and "\<And>y z. U y \<Longrightarrow> V z \<Longrightarrow> W y z" 

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proof goal_cases 
60617  181 
case prems: 1 
182 
then show ?case using prems sorry 

183 
next 

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case prems: 2 

185 
then show ?case using prems sorry 

186 
qed 

60578  187 

60581  188 
* The undocumented feature of implicit cases goal1, goal2, goal3, etc. 
60617  189 
is marked as legacy, and will be removed eventually. The proof method 
190 
"goals" achieves a similar effect within regular Isar; often it can be 

191 
done more adequately by other means (e.g. 'consider'). 

60581  192 

60551  193 
* Nesting of Isar goal structure has been clarified: the context after 
194 
the initial backwards refinement is retained for the whole proof, within 

195 
all its context sections (as indicated via 'next'). This is e.g. 

196 
relevant for 'using', 'including', 'supply': 

197 

198 
have "A \<and> A" if a: A for A 

199 
supply [simp] = a 

200 
proof 

201 
show A by simp 

202 
next 

203 
show A by simp 

204 
qed 

205 

60554  206 
* Method "sleep" succeeds after a realtime delay (in seconds). This is 
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occasionally useful for demonstration and testing purposes. 

208 

60406  209 

60331  210 
*** Pure *** 
211 

61252  212 
* Command 'print_definitions' prints dependencies of definitional 
213 
specifications. This functionality used to be part of 'print_theory'. 

214 

60489  215 
* The vacuous fact "TERM x" may be established "by fact" or as `TERM x` 
216 
as well, not just "by this" or "." as before. 

217 

60331  218 
* Configuration option rule_insts_schematic has been discontinued 
219 
(intermediate legacy feature in Isabelle2015). INCOMPATIBILITY. 

220 

60347  221 
* Abbreviations in type classes now carry proper sort constraint. 
222 
Rare INCOMPATIBILITY in situations where the previous misbehaviour 

61228  223 
has been exploited. 
60347  224 

225 
* Refinement of userspace type system in type classes: pseudolocal 

226 
operations behave more similar to abbreviations. Potential 

227 
INCOMPATIBILITY in exotic situations. 

228 

229 

60171  230 
*** HOL *** 
231 

61308  232 
* Commands 'inductive' and 'inductive_set' work better when names for 
233 
intro rules are omitted: the "cases" and "induct" rules no longer 

234 
declare empty case_names, but no case_names at all. This allows to use 

235 
numbered cases in proofs, without requiring method "goal_cases". 

236 

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* The 'typedef' command has been upgraded from a partially checked 
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"axiomatization", to a full definitional specification that takes the 
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global collection of overloaded constant / type definitions into 
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account. Type definitions with open dependencies on overloaded 
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definitions need to be specified as "typedef (overloaded)". This 
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provides extra robustness in theory construction. Rare INCOMPATIBILITY. 
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61118  244 
* Qualification of various formal entities in the libraries is done more 
245 
uniformly via "context begin qualified definition ... end" instead of 

246 
oldstyle "hide_const (open) ...". Consequently, both the defined 

247 
constant and its defining fact become qualified, e.g. Option.is_none and 

248 
Option.is_none_def. Occasional INCOMPATIBILITY in applications. 

249 

61125
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* Combinator to represent case distinction on products is named "uncurry", 
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251 
with "split" and "prod_case" retained as input abbreviations. 
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Hence, the "uncurry"expressions are printed the following way: 
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a) fully applied "uncurry f p": explicit caseexpression; 
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b) partially applied "uncurry f": explicit paired abstraction; 
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c) unapplied "uncurry": as it is. 
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INCOMPATIBILITY. 
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257 

61069  258 
* Some old and rarely used ASCII replacement syntax has been removed. 
259 
INCOMPATIBILITY, standard syntax with symbols should be used instead. 

260 
The subsequent commands help to reproduce the old forms, e.g. to 

261 
simplify porting old theories: 

262 

263 
type_notation Map.map (infixr "~=>" 0) 

264 
notation Map.map_comp (infixl "o'_m" 55) 

265 

61384  266 
type_notation FinFun.finfun ("(_ =>f /_)" [22, 21] 21) 
267 

268 
notation FuncSet.funcset (infixr ">" 60) 

269 
notation FuncSet.extensional_funcset (infixr ">\<^sub>E" 60) 

270 

271 
notation Omega_Words_Fun.conc (infixr "conc" 65) 

272 

273 
notation Preorder.equiv ("op ~~") 

274 
and Preorder.equiv ("(_/ ~~ _)" [51, 51] 50) 

275 

61143  276 
* The alternative notation "\<Colon>" for type and sort constraints has been 
277 
removed: in LaTeX document output it looks the same as "::". 

278 
INCOMPATIBILITY, use plain "::" instead. 

279 

60841  280 
* Theory Map: lemma map_of_is_SomeD was a clone of map_of_SomeD and has 
281 
been removed. INCOMPATIBILITY. 

282 

60712
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Quickcheck setup for finite sets
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283 
* Quickcheck setup for finite sets. 
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Quickcheck setup for finite sets
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284 

60171  285 
* Discontinued simp_legacy_precond. Potential INCOMPATIBILITY. 
60138  286 

60306
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made Auto Sledgehammer behave more like the real thing
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287 
* Sledgehammer: 
61318  288 
 The MaSh relevance filter has been sped up. 
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 Proof reconstruction has been improved, to minimize the incidence of 
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cases where Sledgehammer gives a proof that does not work. 
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made Auto Sledgehammer behave more like the real thing
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291 
 Auto Sledgehammer now minimizes and preplays the results. 
61030  292 
 Handle Vampire 4.0 proof output without raising exception. 
61043  293 
 Eliminated "MASH" environment variable. Use the "MaSh" option in 
294 
Isabelle/jEdit instead. INCOMPATIBILITY. 

61317  295 
 Eliminated obsolete "blocking" option and related subcommands. 
60306
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296 

60310  297 
* Nitpick: 
61325
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avoid too aggressive optimization of 'finite' predicate
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298 
 Fixed soundness bug in translation of "finite" predicate. 
61324
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avoid unsound simplification of (C (s x)) when s is a selector but not C's
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299 
 Fixed soundness bug in "destroy_constrs" optimization. 
60310  300 
 Removed "check_potential" and "check_genuine" options. 
61317  301 
 Eliminated obsolete "blocking" option. 
60310  302 

61345  303 
* New (co)datatype package: 
304 
 New commands "lift_bnf" and "copy_bnf" for lifting (copying) a BNF 

305 
structure on the raw type to an abstract type defined using typedef. 

306 
 Always generate "case_transfer" theorem. 

60920  307 

61370  308 
* Transfer: 
309 
 new methods for interactive debugging of 'transfer' and 

310 
'transfer_prover': 'transfer_start', 'transfer_step', 'transfer_end', 

311 
'transfer_prover_start' and 'transfer_prover_end'. 

312 

60868
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direct bootstrap of integer division from natural division
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313 
* Division on integers is bootstrapped directly from division on 
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314 
naturals and uses generic numeral algorithm for computations. 
dd18c33c001e
direct bootstrap of integer division from natural division
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315 
Slight INCOMPATIBILITY, simproc numeral_divmod replaces and generalizes 
dd18c33c001e
direct bootstrap of integer division from natural division
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316 
former simprocs binary_int_div and binary_int_mod 
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317 

60516
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generalized some theorems about integral domains and moved to HOL theories
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318 
* Tightened specification of class semiring_no_zero_divisors. Slight 
0826b7025d07
generalized some theorems about integral domains and moved to HOL theories
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319 
INCOMPATIBILITY. 
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generalized some theorems about integral domains and moved to HOL theories
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320 

60688
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avoid explicit definition of the relation of associated elements in a ring  prefer explicit normalization instead
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321 
* Class algebraic_semidom introduces common algebraic notions of 
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322 
integral (semi)domains, particularly units. Although 
60517
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separate class for notions specific for integral (semi)domains, in contrast to fields where these are trivial
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323 
logically subsumed by fields, is is not a super class of these 
f16e4fb20652
separate class for notions specific for integral (semi)domains, in contrast to fields where these are trivial
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324 
in order not to burden fields with notions that are trivial there. 
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325 

01488b559910
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* Class normalization_semidom specifies canonical representants 
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327 
for equivalence classes of associated elements in an integral 
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(semi)domain. This formalizes associated elements as well. 
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avoid explicit definition of the relation of associated elements in a ring  prefer explicit normalization instead
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329 

01488b559910
avoid explicit definition of the relation of associated elements in a ring  prefer explicit normalization instead
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330 
* Abstract specification of gcd/lcm operations in classes semiring_gcd, 
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331 
semiring_Gcd, semiring_Lcd. Minor INCOMPATIBILITY: facts gcd_nat.commute 
01488b559910
avoid explicit definition of the relation of associated elements in a ring  prefer explicit normalization instead
haftmann
parents:
60642
diff
changeset

332 
and gcd_int.commute are subsumed by gcd.commute, as well as gcd_nat.assoc 
01488b559910
avoid explicit definition of the relation of associated elements in a ring  prefer explicit normalization instead
haftmann
parents:
60642
diff
changeset

333 
and gcd_int.assoc by gcd.assoc. 
60517
f16e4fb20652
separate class for notions specific for integral (semi)domains, in contrast to fields where these are trivial
haftmann
parents:
60516
diff
changeset

334 

60429
d3d1e185cd63
uniform _ div _ as infix syntax for ring division
haftmann
parents:
60418
diff
changeset

335 
* Former constants Fields.divide (_ / _) and Divides.div (_ div _) 
60352
d46de31a50c4
separate class for division operator, with particular syntax added in more specific classes
haftmann
parents:
60347
diff
changeset

336 
are logically unified to Rings.divide in syntactic type class 
60429
d3d1e185cd63
uniform _ div _ as infix syntax for ring division
haftmann
parents:
60418
diff
changeset

337 
Rings.divide, with infix syntax (_ div _). Infix syntax (_ / _) 
d3d1e185cd63
uniform _ div _ as infix syntax for ring division
haftmann
parents:
60418
diff
changeset

338 
for field division is added later as abbreviation in class Fields.inverse. 
60516
0826b7025d07
generalized some theorems about integral domains and moved to HOL theories
haftmann
parents:
60515
diff
changeset

339 
INCOMPATIBILITY, instantiations must refer to Rings.divide rather 
60429
d3d1e185cd63
uniform _ div _ as infix syntax for ring division
haftmann
parents:
60418
diff
changeset

340 
than the former separate constants, hence infix syntax (_ / _) is usually 
d3d1e185cd63
uniform _ div _ as infix syntax for ring division
haftmann
parents:
60418
diff
changeset

341 
not available during instantiation. 
60352
d46de31a50c4
separate class for division operator, with particular syntax added in more specific classes
haftmann
parents:
60347
diff
changeset

342 

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

343 
* Library/Multiset: 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

344 
 Renamed multiset inclusion operators: 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

345 
< ~> <# 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

346 
\<subset> ~> \<subset># 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

347 
<= ~> <=# 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

348 
\<le> ~> \<le># 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

349 
\<subseteq> ~> \<subseteq># 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

350 
INCOMPATIBILITY. 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

351 
 "'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

352 
"ordered_ab_semigroup_add_imp_le", "ordered_cancel_comm_monoid_diff", 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

353 
"semilattice_inf", and "semilattice_sup" type classes. The theorems 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

354 
previously provided by these type classes (directly or indirectly) 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

355 
are now available through the "subset_mset" interpretation 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

356 
(e.g. add_mono ~> subset_mset.add_mono). 
f8a513fedb31
Renaming multiset operators < ~> <#,...
Mathias Fleury <Mathias.Fleury@mpiinf.mpg.de>
parents:
60390
diff
changeset

357 
INCOMPATIBILITY. 
60497  358 
 Renamed conversions: 
60515  359 
multiset_of ~> mset 
360 
multiset_of_set ~> mset_set 

60497  361 
set_of ~> set_mset 
362 
INCOMPATIBILITY 

60398  363 
 Renamed lemmas: 
364 
mset_le_def ~> subseteq_mset_def 

365 
mset_less_def ~> subset_mset_def 

60400  366 
less_eq_multiset.rep_eq ~> subseteq_mset_def 
367 
INCOMPATIBILITY 

368 
 Removed lemmas generated by lift_definition: 

369 
less_eq_multiset.abs_eq, less_eq_multiset.rsp less_eq_multiset.transfer 

370 
less_eq_multiset_def 

371 
INCOMPATIBILITY 

60006  372 

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

373 
* 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

374 
ported from HOL Light 
457abb82fb9e
the Cauchy integral theorem and related material
paulson <lp15@cam.ac.uk>
parents:
60802
diff
changeset

375 

60523  376 
* Theory Library/Old_Recdef: discontinued obsolete 'defer_recdef' 
377 
command. Minor INCOMPATIBILITY, use 'function' instead. 

378 

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

379 
* 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

380 
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

381 
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

382 
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

383 

61119  384 
* Imperative_HOL: obsolete theory Legacy_Mrec has been removed. 
385 

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

386 
* 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

387 

60479  388 

60793  389 
*** ML *** 
390 

61268  391 
* The auxiliary module Pure/display.ML has been eliminated. Its 
392 
elementary thm print operations are now in Pure/more_thm.ML and thus 

393 
called Thm.pretty_thm, Thm.string_of_thm etc. INCOMPATIBILITY. 

394 

61144  395 
* Simproc programming interfaces have been simplified: 
396 
Simplifier.make_simproc and Simplifier.define_simproc supersede various 

397 
forms of Simplifier.mk_simproc, Simplifier.simproc_global etc. Note that 

398 
term patterns for the lefthand sides are specified with implicitly 

399 
fixed variables, like toplevel theorem statements. INCOMPATIBILITY. 

400 

60802  401 
* Instantiation rules have been reorganized as follows: 
402 

403 
Thm.instantiate (*lowlevel instantiation with named arguments*) 

404 
Thm.instantiate' (*version with positional arguments*) 

405 

406 
Drule.infer_instantiate (*instantiation with type inference*) 

407 
Drule.infer_instantiate' (*version with positional arguments*) 

408 

409 
The LHS only requires variable specifications, instead of full terms. 

410 
Old cterm_instantiate is superseded by infer_instantiate. 

411 
INCOMPATIBILITY, need to readjust some ML names and types accordingly. 

412 

60793  413 
* Old tactic shorthands atac, rtac, etac, dtac, ftac have been 
414 
discontinued. INCOMPATIBILITY, use regular assume_tac, resolve_tac etc. 

415 
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

416 

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

417 
* 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

418 
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

419 

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

420 
* 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

421 
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

422 
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

423 
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

424 
the proof context discipline. 
e96b7be56d44
SUBPROOF and Subgoal.FOCUS combinators use anonymous quasibound variables (like the Simplifier);
wenzelm
parents:
60688
diff
changeset

425 

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

426 

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

427 
*** System *** 
ff4a67c65084
updated to polyml5.5.320150820, with native x86windows support;
wenzelm
parents:
60922
diff
changeset

428 

61174  429 
* Property values in etc/symbols may contain spaces, if written with the 
430 
replacement character "␣" (Unicode point 0x2324). For example: 

431 

432 
\<star> code: 0x0022c6 group: operator font: Deja␣Vu␣Sans␣Mono 

433 

61173  434 
* Commandline tool "isabelle jedit_client" allows to connect to already 
435 
running Isabelle/jEdit process. This achieves the effect of 

436 
singleinstance applications seen on common GUI desktops. 

437 

61216  438 
* Commandline tool "isabelle update_then" expands old Isar command 
439 
conflations: 

440 

441 
hence ~> then have 

442 
thus ~> then show 

443 

444 
This syntax is more orthogonal and improves readability and 

445 
maintainability of proofs. 

446 

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

447 
* 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

448 
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

449 
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

450 

61074  451 
* Poly/ML 5.5.3 runs natively on x86windows and x86_64windows, 
452 
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

453 

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

454 
* 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

455 
space. 
5176de8f90db
updated to jdk8u60, with support for x86_64windows;
wenzelm
parents:
60986
diff
changeset

456 

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

457 
* 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

458 
platforms as follows. 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

459 

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

460 
 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

461 
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

462 

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

463 
 isabelle jedit: settings 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

464 
JEDIT_JAVA_SYSTEM_OPTIONS 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

465 
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

466 

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

467 
 isabelle build: settings 
8f7d802b7a71
clarified Java runtime options (NB: ISABELLE_JAVA_PLATFORM is determined later via component);
wenzelm
parents:
61134
diff
changeset

468 
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

469 

61294  470 
* Bash shell function "jvmpath" has been renamed to "platform_path": it 
471 
is relevant both for Poly/ML and JVM processes. 

472 

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

473 

60479  474 

60009  475 
New in Isabelle2015 (May 2015) 
476 
 

57695  477 

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

478 
*** General *** 
57200bdc2aa7
localized command 'method_setup' and 'attribute_setup';
wenzelm
parents:
57882
diff
changeset

479 

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

480 
* 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

481 
'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

482 
as provided by some "context begin ... end" block. For example: 
59926  483 

484 
context 

485 
begin 

486 

487 
private definition ... 

488 
private lemma ... 

489 

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

490 
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

491 
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

492 

59926  493 
lemma ... 
494 
theorem ... 

495 

496 
end 

497 

59901  498 
* Command 'experiment' opens an anonymous locale context with private 
499 
naming policy. 

500 

59951  501 
* Command 'notepad' requires proper nesting of begin/end and its proof 
502 
structure in the body: 'oops' is no longer supported here. Minor 

503 
INCOMPATIBILITY, use 'sorry' instead. 

504 

505 
* Command 'named_theorems' declares a dynamic fact within the context, 

506 
together with an attribute to maintain the content incrementally. This 

507 
supersedes functor Named_Thms in Isabelle/ML, but with a subtle change 

508 
of semantics due to external visual order vs. internal reverse order. 

509 

510 
* 'find_theorems': search patterns which are abstractions are 

511 
schematically expanded before search. Search results match the naive 

512 
expectation more closely, particularly wrt. abbreviations. 

513 
INCOMPATIBILITY. 

59648  514 

59569  515 
* Commands 'method_setup' and 'attribute_setup' now work within a local 
516 
theory context. 

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

517 

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

518 
* Outer syntax commands are managed authentically within the theory 
59569  519 
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

520 
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

521 

60115  522 
* Historical commandline terminator ";" is no longer accepted (and 
523 
already used differently in Isar). Minor INCOMPATIBILITY, use "isabelle 

524 
update_semicolons" to remove obsolete semicolons from old theory 

525 
sources. 

526 

59951  527 
* Structural composition of proof methods (meth1; meth2) in Isar 
528 
corresponds to (tac1 THEN_ALL_NEW tac2) in ML. 

59105  529 

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

530 
* 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

531 
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

532 
method provides basic fact/term matching in addition to 
54bea620e54f
added Eisbach, using version 3752768caa17 of its Bitbucket repository;
wenzelm
parents:
60115
diff
changeset

533 
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

534 
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

535 
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

536 
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

537 

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

538 

58524  539 
*** Prover IDE  Isabelle/Scala/jEdit *** 
540 

59569  541 
* Improved folding mode "isabelle" based on Isar syntax. Alternatively, 
542 
the "sidekick" mode may be used for document structure. 

543 

544 
* Extended bracket matching based on Isar language structure. System 

545 
option jedit_structure_limit determines maximum number of lines to scan 

546 
in the buffer. 

58758  547 

58540  548 
* Support for BibTeX files: context menu, contextsensitive token 
549 
marker, SideKick parser. 

58524  550 

58551  551 
* Document antiquotation @{cite} provides formal markup, which is 
60265  552 
interpreted semiformally based on .bib files that happen to be open in 
553 
the editor (hyperlinks, completion etc.). 

58551  554 

58785  555 
* Less waste of vertical space via negative line spacing (see Global 
556 
Options / Text Area). 

557 

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

558 
* 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

559 
display of 'thy_deps', 'class_deps' etc. 
60009  560 

60115  561 
* The commands 'thy_deps' and 'class_deps' allow optional bounds to 
562 
restrict the visualized hierarchy. 

60093  563 

60072  564 
* Improved scheduling for asynchronous print commands (e.g. provers 
565 
managed by the Sledgehammer panel) wrt. ongoing document processing. 

566 

58524  567 

59951  568 
*** Document preparation *** 
569 

570 
* Document markup commands 'chapter', 'section', 'subsection', 

571 
'subsubsection', 'text', 'txt', 'text_raw' work uniformly in any 

572 
context, even before the initial 'theory' command. Obsolete proof 

573 
commands 'sect', 'subsect', 'subsubsect', 'txt_raw' have been 

574 
discontinued, use 'section', 'subsection', 'subsubsection', 'text_raw' 

575 
instead. The old 'header' command is still retained for some time, but 

576 
should be replaced by 'chapter', 'section' etc. (using "isabelle 

577 
update_header"). Minor INCOMPATIBILITY. 

578 

60009  579 
* Official support for "tt" style variants, via \isatt{...} or 
580 
\begin{isabellett}...\end{isabellett}. The somewhat fragile \verb or 

581 
verbatim environment of LaTeX is no longer used. This allows @{ML} etc. 

582 
as argument to other macros (such as footnotes). 

583 

584 
* Document antiquotation @{verbatim} prints ASCII text literally in "tt" 

585 
style. 

586 

587 
* Discontinued obsolete option "document_graph": session_graph.pdf is 

588 
produced unconditionally for HTML browser_info and PDFLaTeX document. 

589 

59951  590 
* Diagnostic commands and document markup commands within a proof do not 
591 
affect the command tag for output. Thus commands like 'thm' are subject 

592 
to proof document structure, and no longer "stick out" accidentally. 

593 
Commands 'text' and 'txt' merely differ in the LaTeX style, not their 

594 
tags. Potential INCOMPATIBILITY in exotic situations. 

595 

596 
* System option "pretty_margin" is superseded by "thy_output_margin", 

597 
which is also accessible via document antiquotation option "margin". 

598 
Only the margin for document output may be changed, but not the global 

599 
pretty printing: that is 76 for plain console output, and adapted 

600 
dynamically in GUI frontends. Implementations of document 

601 
antiquotations need to observe the margin explicitly according to 

602 
Thy_Output.string_of_margin. Minor INCOMPATIBILITY. 

603 

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

604 
* 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

605 
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

606 
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

607 
INCOMPATIBILITY. 
5ae2a2e74c93
clarified NEWS: document_files are officially required since Isabelle2014, but the absence was tolerated as legacy feature;
wenzelm
parents:
60288
diff
changeset

608 

59951  609 

58202  610 
*** Pure *** 
611 

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

612 
* 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

613 
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

614 
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

615 
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

616 
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

617 
of schematic variables outside the context. Minor INCOMPATIBILITY, 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

618 
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

619 
variable declarations or dummy patterns instead. 
97872c658a44
rule_insts_schematic is considered legacy and false by default;
wenzelm
parents:
59815
diff
changeset

620 

60009  621 
* Explicit instantiation via attributes "where", "of", and proof methods 
622 
"rule_tac" with derivatives like "subgoal_tac" etc. admit dummy patterns 

623 
("_") that stand for anonymous local variables. 

624 

59951  625 
* Generated schematic variables in standard format of exported facts are 
626 
incremented to avoid material in the proof context. Rare 

627 
INCOMPATIBILITY, explicit instantiation sometimes needs to refer to 

628 
different index. 

629 

60010  630 
* Lexical separation of signed and unsigned numerals: categories "num" 
631 
and "float" are unsigned. INCOMPATIBILITY: subtle change in precedence 

632 
of numeral signs, particularly in expressions involving infix syntax 

633 
like "( 1) ^ n". 

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

634 

58421  635 
* Old inner token category "xnum" has been discontinued. Potential 
636 
INCOMPATIBILITY for exotic syntax: may use mixfix grammar with "num" 

637 
token category instead. 

638 

58202  639 

57737  640 
*** HOL *** 
641 

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

642 
* New (co)datatype package: 
58373  643 
 The 'datatype_new' command has been renamed 'datatype'. The old 
644 
command of that name is now called 'old_datatype' and is provided 

645 
by "~~/src/HOL/Library/Old_Datatype.thy". See 

646 
'isabelle doc datatypes' for information on porting. 

647 
INCOMPATIBILITY. 

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

648 
 Renamed theorems: 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

649 
disc_corec ~> corec_disc 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

650 
disc_corec_iff ~> corec_disc_iff 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

651 
disc_exclude ~> distinct_disc 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

652 
disc_exhaust ~> exhaust_disc 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

653 
disc_map_iff ~> map_disc_iff 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

654 
sel_corec ~> corec_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

655 
sel_exhaust ~> exhaust_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

656 
sel_map ~> map_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

657 
sel_set ~> set_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

658 
sel_split ~> split_sel 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

659 
sel_split_asm ~> split_sel_asm 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

660 
strong_coinduct ~> coinduct_strong 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

661 
weak_case_cong ~> case_cong_weak 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

662 
INCOMPATIBILITY. 
58192  663 
 The "no_code" option to "free_constructors", "datatype_new", and 
664 
"codatatype" has been renamed "plugins del: code". 

665 
INCOMPATIBILITY. 

58044  666 
 The rules "set_empty" have been removed. They are easy 
667 
consequences of other set rules "by auto". 

668 
INCOMPATIBILITY. 

669 
 The rule "set_cases" is now registered with the "[cases set]" 

57990  670 
attribute. This can influence the behavior of the "cases" proof 
671 
method when more than one case rule is applicable (e.g., an 

672 
assumption is of the form "w : set ws" and the method "cases w" 

673 
is invoked). The solution is to specify the case rule explicitly 

674 
(e.g. "cases w rule: widget.exhaust"). 

675 
INCOMPATIBILITY. 

59675  676 
 Renamed theories: 
677 
BNF_Comp ~> BNF_Composition 

678 
BNF_FP_Base ~> BNF_Fixpoint_Base 

679 
BNF_GFP ~> BNF_Greatest_Fixpoint 

680 
BNF_LFP ~> BNF_Least_Fixpoint 

681 
BNF_Constructions_on_Wellorders ~> BNF_Wellorder_Constructions 

682 
Cardinals/Constructions_on_Wellorders ~> Cardinals/Wellorder_Constructions 

683 
INCOMPATIBILITY. 

60114  684 
 Lifting and Transfer setup for basic HOL types sum and prod (also 
685 
option) is now performed by the BNF package. Theories Lifting_Sum, 

686 
Lifting_Product and Lifting_Option from Main became obsolete and 

687 
were removed. Changed definitions of the relators rel_prod and 

688 
rel_sum (using inductive). 

60111  689 
INCOMPATIBILITY: use rel_prod.simps and rel_sum.simps instead 
60114  690 
of rel_prod_def and rel_sum_def. 
691 
Minor INCOMPATIBILITY: (rarely used by name) transfer theorem names 

692 
changed (e.g. map_prod_transfer ~> prod.map_transfer). 

60261  693 
 Parametricity theorems for map functions, relators, set functions, 
694 
constructors, case combinators, discriminators, selectors and 

695 
(co)recursors are automatically proved and registered as transfer 

696 
rules. 

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

697 

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

698 
* Old datatype package: 
58310  699 
 The old 'datatype' command has been renamed 'old_datatype', and 
58373  700 
'rep_datatype' has been renamed 'old_rep_datatype'. They are 
701 
provided by "~~/src/HOL/Library/Old_Datatype.thy". See 

58310  702 
'isabelle doc datatypes' for information on porting. 
58373  703 
INCOMPATIBILITY. 
57983
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

704 
 Renamed theorems: 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

705 
weak_case_cong ~> case_cong_weak 
6edc3529bb4e
reordered some (co)datatype property names for more consistency
blanchet
parents:
57946
diff
changeset

706 
INCOMPATIBILITY. 
58373  707 
 Renamed theory: 
708 
~~/src/HOL/Datatype.thy ~> ~~/src/HOL/Library/Old_Datatype.thy 

709 
INCOMPATIBILITY. 

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

710 

59039  711 
* Nitpick: 
60010  712 
 Fixed soundness bug related to the strict and nonstrict subset 
59039  713 
operations. 
714 

57737  715 
* Sledgehammer: 
59511  716 
 CVC4 is now included with Isabelle instead of CVC3 and run by 
717 
default. 

59965  718 
 Z3 is now always enabled by default, now that it is fully open 
719 
source. The "z3_non_commercial" option is discontinued. 

57737  720 
 Minimization is now always enabled by default. 
60010  721 
Removed subcommand: 
57737  722 
min 
59967  723 
 Proof reconstruction, both oneliners and Isar, has been 
59039  724 
dramatically improved. 
725 
 Improved support for CVC4 and veriT. 

57737  726 

58062  727 
* Old and new SMT modules: 
58067  728 
 The old 'smt' method has been renamed 'old_smt' and moved to 
59569  729 
'src/HOL/Library/Old_SMT.thy'. It is provided for compatibility, 
730 
until applications have been ported to use the new 'smt' method. For 

731 
the method to work, an older version of Z3 (e.g. Z3 3.2 or 4.0) must 

732 
be installed, and the environment variable "OLD_Z3_SOLVER" must 

733 
point to it. 

58062  734 
INCOMPATIBILITY. 
58067  735 
 The 'smt2' method has been renamed 'smt'. 
58060  736 
INCOMPATIBILITY. 
59569  737 
 New option 'smt_reconstruction_step_timeout' to limit the 
738 
reconstruction time of Z3 proof steps in the new 'smt' method. 

59216  739 
 New option 'smt_statistics' to display statistics of the new 'smt' 
740 
method, especially runtime statistics of Z3 proof reconstruction. 

58060  741 

60261  742 
* Lifting: command 'lift_definition' allows to execute lifted constants 
743 
that have as a return type a datatype containing a subtype. This 

744 
overcomes longtime limitations in the area of code generation and 

745 
lifting, and avoids tedious workarounds. 

60258  746 

60009  747 
* Command and antiquotation "value" provide different evaluation slots 
748 
(again), where the previous strategy (NBE after ML) serves as default. 

749 
Minor INCOMPATIBILITY. 

750 

751 
* Add NO_MATCHsimproc, allows to check for syntactic nonequality. 

752 

753 
* field_simps: Use NO_MATCHsimproc for distribution rules, to avoid 

754 
nontermination in case of distributing a division. With this change 

755 
field_simps is in some cases slightly less powerful, if it fails try to 

756 
add algebra_simps, or use divide_simps. Minor INCOMPATIBILITY. 

757 

758 
* Separate class no_zero_divisors has been given up in favour of fully 

759 
algebraic semiring_no_zero_divisors. INCOMPATIBILITY. 

760 

761 
* Class linordered_semidom really requires no zero divisors. 

762 
INCOMPATIBILITY. 

763 

764 
* Classes division_ring, field and linordered_field always demand 

765 
"inverse 0 = 0". Given up separate classes division_ring_inverse_zero, 

766 
field_inverse_zero and linordered_field_inverse_zero. INCOMPATIBILITY. 

767 

768 
* Classes cancel_ab_semigroup_add / cancel_monoid_add specify explicit 

769 
additive inverse operation. INCOMPATIBILITY. 

770 

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

771 
* Complex powers and square roots. The functions "ln" and "powr" are now 
60025  772 
overloaded for types real and complex, and 0 powr y = 0 by definition. 
773 
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

774 

60009  775 
* The functions "sin" and "cos" are now defined for any type of sort 
776 
"{real_normed_algebra_1,banach}" type, so in particular on "real" and 

777 
"complex" uniformly. Minor INCOMPATIBILITY: type constraints may be 

778 
needed. 

779 

780 
* New library of properties of the complex transcendental functions sin, 

781 
cos, tan, exp, Ln, Arctan, Arcsin, Arccos. Ported from HOL Light. 

782 

783 
* The factorial function, "fact", now has type "nat => 'a" (of a sort 

784 
that admits numeric types including nat, int, real and complex. 

785 
INCOMPATIBILITY: an expression such as "fact 3 = 6" may require a type 

786 
constraint, and the combination "real (fact k)" is likely to be 

787 
unsatisfactory. If a type conversion is still necessary, then use 

788 
"of_nat (fact k)" or "real_of_nat (fact k)". 

789 

790 
* Removed functions "natfloor" and "natceiling", use "nat o floor" and 

791 
"nat o ceiling" instead. A few of the lemmas have been retained and 

792 
adapted: in their names "natfloor"/"natceiling" has been replaced by 

793 
"nat_floor"/"nat_ceiling". 

794 

795 
* Qualified some duplicated fact names required for boostrapping the 

796 
type class hierarchy: 

797 
ab_add_uminus_conv_diff ~> diff_conv_add_uminus 

798 
field_inverse_zero ~> inverse_zero 

799 
field_divide_inverse ~> divide_inverse 

800 
field_inverse ~> left_inverse 

801 
Minor INCOMPATIBILITY. 

802 

803 
* Eliminated fact duplicates: 

804 
mult_less_imp_less_right ~> mult_right_less_imp_less 

805 
mult_less_imp_less_left ~> mult_left_less_imp_less 

806 
Minor INCOMPATIBILITY. 

807 

808 
* Fact consolidation: even_less_0_iff is subsumed by 

809 
double_add_less_zero_iff_single_add_less_zero (simp by default anyway). 

810 

811 
* Generalized and consolidated some theorems concerning divsibility: 

812 
dvd_reduce ~> dvd_add_triv_right_iff 

813 
dvd_plus_eq_right ~> dvd_add_right_iff 

814 
dvd_plus_eq_left ~> dvd_add_left_iff 

815 
Minor INCOMPATIBILITY. 

816 

817 
* "even" and "odd" are mere abbreviations for "2 dvd _" and "~ 2 dvd _" 

818 
and part of theory Main. 

819 
even_def ~> even_iff_mod_2_eq_zero 

820 
INCOMPATIBILITY. 

821 

822 
* Lemma name consolidation: divide_Numeral1 ~> divide_numeral_1. Minor 

823 
INCOMPATIBILITY. 

824 

825 
* Bootstrap of listsum as special case of abstract product over lists. 

826 
Fact rename: 

827 
listsum_def ~> listsum.eq_foldr 

828 
INCOMPATIBILITY. 

829 

830 
* Product over lists via constant "listprod". 

831 

832 
* Theory List: renamed drop_Suc_conv_tl and nth_drop' to 

833 
Cons_nth_drop_Suc. 

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

834 

58626  835 
* New infrastructure for compiling, running, evaluating and testing 
59569  836 
generated code in target languages in HOL/Library/Code_Test. See 
837 
HOL/Codegenerator_Test/Code_Test* for examples. 

58008  838 

60009  839 
* Library/Multiset: 
59813  840 
 Introduced "replicate_mset" operation. 
841 
 Introduced alternative characterizations of the multiset ordering in 

842 
"Library/Multiset_Order". 

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

843 
 Renamed multiset ordering: 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

844 
<# ~> #<# 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

845 
<=# ~> #<=# 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

846 
\<subset># ~> #\<subset># 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

847 
\<subseteq># ~> #\<subseteq># 
4538d41e8e54
renamed multiset ordering to free up nice <# etc. symbols for the standard subset
blanchet
parents:
59951
diff
changeset

848 
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

849 
 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

850 
<#, \<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

851 
<=#, \<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

852 
INCOMPATIBILITY. 
59813  853 
 Renamed 
854 
in_multiset_of ~> in_multiset_in_set 

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

855 
Multiset.fold ~> fold_mset 
c54d36be22ef
renamed Multiset.fold > fold_mset, Multiset.filter > filter_mset
nipkow
parents:
59991
diff
changeset

856 
Multiset.filter ~> filter_mset 
59813  857 
INCOMPATIBILITY. 
59949  858 
 Removed mcard, is equal to size. 
59813  859 
 Added attributes: 
860 
image_mset.id [simp] 

861 
image_mset_id [simp] 

862 
elem_multiset_of_set [simp, intro] 

863 
comp_fun_commute_plus_mset [simp] 

864 
comp_fun_commute.fold_mset_insert [OF comp_fun_commute_plus_mset, simp] 

865 
in_mset_fold_plus_iff [iff] 

866 
set_of_Union_mset [simp] 

867 
in_Union_mset_iff [iff] 

868 
INCOMPATIBILITY. 

869 

60009  870 
* Library/Sum_of_Squares: simplified and improved "sos" method. Always 
871 
use local CSDP executable, which is much faster than the NEOS server. 

872 
The "sos_cert" functionality is invoked as "sos" with additional 

873 
argument. Minor INCOMPATIBILITY. 

874 

875 
* HOLDecision_Procs: New counterexample generator quickcheck 

876 
[approximation] for inequalities of transcendental functions. Uses 

877 
hardware floating point arithmetic to randomly discover potential 

60010  878 
counterexamples. Counterexamples are certified with the "approximation" 
60009  879 
method. See HOL/Decision_Procs/ex/Approximation_Quickcheck_Ex.thy for 
880 
examples. 

58990  881 

59354  882 
* HOLProbability: Reworked measurability prover 
60010  883 
 applies destructor rules repeatedly 
59354  884 
 removed application splitting (replaced by destructor rule) 
59569  885 
 added congruence rules to rewrite measure spaces under the sets 
886 
projection 

887 

60009  888 
* New proof method "rewrite" (in theory ~~/src/HOL/Library/Rewrite) for 
889 
singlestep rewriting with subterm selection based on patterns. 

890 

58630  891 

58066  892 
*** ML *** 
893 

60009  894 
* Subtle change of name space policy: undeclared entries are now 
895 
considered inaccessible, instead of accessible via the fullyqualified 

896 
internal name. This mainly affects Name_Space.intern (and derivatives), 

897 
which may produce an unexpected Long_Name.hidden prefix. Note that 

60010  898 
contemporary applications use the strict Name_Space.check (and 
60009  899 
derivatives) instead, which is not affected by the change. Potential 
900 
INCOMPATIBILITY in rare applications of Name_Space.intern. 

59951  901 

60094  902 
* Subtle change of error semantics of Toplevel.proof_of: regular user 
903 
ERROR instead of internal Toplevel.UNDEF. 

904 

59951  905 
* Basic combinators map, fold, fold_map, split_list, apply are available 
906 
as parameterized antiquotations, e.g. @{map 4} for lists of quadruples. 

907 

908 
* Renamed "pairself" to "apply2", in accordance to @{apply 2}. 

909 
INCOMPATIBILITY. 

910 

911 
* Former combinators NAMED_CRITICAL and CRITICAL for central critical 

912 
sections have been discontinued, in favour of the more elementary 

913 
Multithreading.synchronized and its highlevel derivative 

914 
Synchronized.var (which is usually sufficient in applications). Subtle 

915 
INCOMPATIBILITY: synchronized access needs to be atomic and cannot be 

916 
nested. 

917 

60009  918 
* Synchronized.value (ML) is actually synchronized (as in Scala): subtle 
919 
change of semantics with minimal potential for INCOMPATIBILITY. 

59899  920 

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

921 
* 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

922 
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

923 
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

924 
INCOMPATIBILITY. 
291934bac95e
Thm.cterm_of and Thm.ctyp_of operate on local context;
wenzelm
parents:
59588
diff
changeset

925 

59582  926 
* Elementary operations in module Thm are no longer pervasive. 
927 
INCOMPATIBILITY, need to use qualified Thm.prop_of, Thm.cterm_of, 

928 
Thm.term_of etc. 

929 

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

930 
* 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

931 
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

932 
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

933 

58066  934 
* Tactical PARALLEL_ALLGOALS is the most common way to refer to 
935 
PARALLEL_GOALS. 

936 

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

937 
* 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

938 
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

939 

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

940 
* Antiquotation @{command_spec "COMMAND"} is superseded by 
b8ffc3dc9e24
@{command_spec} is superseded by @{command_keyword};
wenzelm
parents:
59926
diff
changeset

941 
@{command_keyword COMMAND} (usually without quotes and with PIDE 
b8ffc3dc9e24
@{command_spec} is superseded by @{command_keyword};
wenzelm
parents:
59926
diff
changeset

942 
markup). Minor INCOMPATIBILITY. 
b8ffc3dc9e24
@{command_spec} is superseded by @{command_keyword};
wenzelm
parents:
59926
diff
changeset

943 

60009  944 
* Cartouches within ML sources are turned into values of type 
945 
Input.source (with formal position information). 

946 

58066  947 

58610  948 
*** System *** 
949 

59951  950 
* The Isabelle tool "update_cartouches" changes theory files to use 
951 
cartouches instead of oldstyle {* verbatim *} or `alt_string` tokens. 

952 

60106  953 
* The Isabelle tool "build" provides new options X, k, x. 
59951  954 

955 
* Discontinued oldfashioned "codegen" tool. Code generation can always 

956 
be externally triggered using an appropriate ROOT file plus a 

957 
corresponding theory. Parametrization is possible using environment 

958 
variables, or ML snippets in the most extreme cases. Minor 

959 
INCOMPATIBILITY. 

58842  960 

59200  961 
* JVM system property "isabelle.threads" determines size of Scala thread 
962 
pool, like Isabelle system option "threads" for ML. 

963 

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

964 
* 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

965 
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

966 
menu Global Options / Appearance. 
702e0971d617
added system property isabelle.laf, notably for initial system dialog;
wenzelm
parents:
59200
diff
changeset

967 

59951  968 
* Support for Proof General and Isar TTY loop has been discontinued. 
60009  969 
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

970 

58610  971 

57695  972 

57452  973 
New in Isabelle2014 (August 2014) 
974 
 

54055  975 

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

976 
*** General *** 
3daeba5130f0
added document antiquotation @{url}, which produces formal markup for LaTeX and PIDE;
wenzelm
parents:
54688
diff
changeset

977 

57452  978 
* Support for official Standard ML within the Isabelle context. 
979 
Command 'SML_file' reads and evaluates the given Standard ML file. 

980 
Toplevel bindings are stored within the theory context; the initial 

981 
environment is restricted to the Standard ML implementation of 

982 
Poly/ML, without the addons of Isabelle/ML. Commands 'SML_import' 

983 
and 'SML_export' allow to exchange toplevel bindings between the two 

984 
separate environments. See also ~~/src/Tools/SML/Examples.thy for 

985 
some examples. 

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

986 

57504  987 
* Standard tactics and proof methods such as "clarsimp", "auto" and 
988 
"safe" now preserve equality hypotheses "x = expr" where x is a free 

989 
variable. Locale assumptions and chained facts containing "x" 

990 
continue to be useful. The new method "hypsubst_thin" and the 

991 
configuration option "hypsubst_thin" (within the attribute name space) 

992 
restore the previous behavior. INCOMPATIBILITY, especially where 

993 
induction is done after these methods or when the names of free and 

994 
bound variables clash. As first approximation, old proofs may be 

995 
repaired by "using [[hypsubst_thin = true]]" in the critical spot. 

996 

56232  997 
* More static checking of proof methods, which allows the system to 
998 
form a closure over the concrete syntax. Method arguments should be 

999 
processed in the original proof context as far as possible, before 

1000 
operating on the goal state. In any case, the standard discipline for 

1001 
subgoaladdressing needs to be observed: no subgoals or a subgoal 

1002 
number that is out of range produces an empty result sequence, not an 

1003 
exception. Potential INCOMPATIBILITY for nonconformant tactical 

1004 
proof tools. 

1005 

57452  1006 
* Lexical syntax (inner and outer) supports text cartouches with 
1007 
arbitrary nesting, and without escapes of quotes etc. The Prover IDE 

1008 
supports input via ` (backquote). 

1009 

1010 
* The outer syntax categories "text" (for formal comments and document 

1011 
markup commands) and "altstring" (for literal fact references) allow 

1012 
cartouches as well, in addition to the traditional mix of quotations. 

1013 

1014 
* Syntax of document antiquotation @{rail} now uses \<newline> instead 

1015 
of "\\", to avoid the optical illusion of escaped backslash within 

57491  1016 
string token. General renovation of its syntax using text cartouches. 
57452  1017 
Minor INCOMPATIBILITY. 
1018 

1019 
* Discontinued legacy_isub_isup, which was a temporary workaround for 

1020 
Isabelle/ML in Isabelle20131. The prover process no longer accepts 

1021 
old identifier syntax with \<^isub> or \<^isup>. Potential 

1022 
INCOMPATIBILITY. 

1023 

1024 
* Document antiquotation @{url} produces markup for the given URL, 

1025 
which results in an active hyperlink within the text. 

1026 

1027 
* Document antiquotation @{file_unchecked} is like @{file}, but does 

1028 
not check existence within the filesystem. 

1029 

1030 
* Updated and extended manuals: codegen, datatypes, implementation, 

1031 
isarref, jedit, system. 

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

1032 

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

1033 

54533  1034 
*** Prover IDE  Isabelle/Scala/jEdit *** 
1035 

57650  1036 
* Improved Document panel: simplified interaction where every single 
57452  1037 
mouse click (re)opens document via desktop environment or as jEdit 
1038 
buffer. 

1039 

1040 
* Support for Navigator plugin (with toolbar buttons), with connection 

1041 
to PIDE hyperlinks. 

1042 

1043 
* Auxiliary files ('ML_file' etc.) are managed by the Prover IDE. 

1044 
Open text buffers take precedence over copies within the filesystem. 

1045 

1046 
* Improved support for Isabelle/ML, with jEdit mode "isabelleml" for 

1047 
auxiliary ML files. 

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

1048 

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

1049 
* Improved syntactic and semantic completion mechanism, with simple 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

1050 
templates, completion language context, namespace completion, 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

1051 
filename completion, spellchecker completion. 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

1052 

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

1053 
* 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

1054 
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

1055 
keystrokes with slow / remote graphics displays. 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

1056 

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

1057 
* 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

1058 
item, depending on Isabelle options. 
2c2bae3da1c2
completion popup supports both ENTER and TAB (default);
wenzelm
parents:
57826
diff
changeset

1059 

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

1060 
* 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

1061 
selections, rectangular selections, rectangular selection as "tall 
96f970d1522b
updated NEWS  removed material that is already in the manual;
wenzelm
parents:
57418
diff
changeset

1062 
caret". 
56342  1063 

56580  1064 
* 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

1065 
completion popup and contextmenu. 
56554  1066 

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

1067 
* More general "Query" panel supersedes "Find" panel, with GUI access 
ee2b61f37ad9
renamed "Find" to "Query", with more general operations;
wenzelm
parents:
56851
diff
changeset

1068 
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

1069 
operations for the context. Minor incompatibility in keyboard 
ee2b61f37ad9
renamed "Find" to "Query", with more general operations;
wenzelm
parents:
56851
diff
changeset

1070 
shortcuts etc.: replace action isabellefind by isabellequery. 
56761  1071 

56901  1072 
* Search field for all output panels ("Output", "Query", "Info" etc.) 
1073 
to highlight text via regular expression. 

1074 

54881  1075 
* Option "jedit_print_mode" (see also "Plugin Options / Isabelle / 
1076 
General") allows to specify additional print modes for the prover 

1077 
process, without requiring oldfashioned commandline invocation of 

1078 
"isabelle jedit m MODE". 

1079 

56505  1080 
* More support for remote files (e.g. http) using standard Java 
1081 
networking operations instead of jEdit virtual filesystems. 

1082 

57822  1083 
* Empty editors buffers that are no longer required (e.g.\ via theory 
1084 
imports) are automatically removed from the document model. 

1085 

57869  1086 
* Improved monitor panel. 
1087 

56838  1088 
* Improved Console/Scala plugin: more uniform scala.Console output, 
1089 
more robust treatment of threads and interrupts. 

1090 

56939  1091 
* Improved management of dockable windows: clarified keyboard focus 
1092 
and window placement wrt. main editor view; optional menu item to 

1093 
"Detach" a copy where this makes sense. 

1094 

57452  1095 
* 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

1096 
simplification process, enabled by the "simp_trace_new" attribute 
57452  1097 
within the context. 
1098 

1099 

55001  1100 
*** Pure *** 
1101 

57504  1102 
* Lowlevel typeclass commands 'classes', 'classrel', 'arities' have 
1103 
been discontinued to avoid the danger of nontrivial axiomatization 

1104 
that is not immediately visible. INCOMPATIBILITY, use regular 

1105 
'instance' command with proof. The required OFCLASS(...) theorem 

1106 
might be postulated via 'axiomatization' beforehand, or the proof 

1107 
finished trivially if the underlying class definition is made vacuous 

1108 
(without any assumptions). See also Isabelle/ML operations 

1109 
Axclass.class_axiomatization, Axclass.classrel_axiomatization, 

1110 
Axclass.arity_axiomatization. 

1111 

56245  1112 
* Basic constants of Pure use more conventional names and are always 
1113 
qualified. Rare INCOMPATIBILITY, but with potentially serious 

1114 
consequences, notably for tools in Isabelle/ML. The following 

1115 
renaming needs to be applied: 

1116 

1117 
== ~> Pure.eq 

1118 
==> ~> Pure.imp 

1119 
all ~> Pure.all 

1120 
TYPE ~> Pure.type 

1121 
dummy_pattern ~> Pure.dummy_pattern 

1122 

1123 
Systematic porting works by using the following theory setup on a 

1124 
*previous* Isabelle version to introduce the new name accesses for the 

1125 
old constants: 

1126 

1127 
setup {* 

1128 
fn thy => thy 

1129 
> Sign.root_path 

1130 
> Sign.const_alias (Binding.qualify true "Pure" @{binding eq}) "==" 

1131 
> Sign.const_alias (Binding.qualify true "Pure" @{binding imp}) "==>" 

1132 
> Sign.const_alias (Binding.qualify true "Pure" @{binding all}) "all" 

1133 
> Sign.restore_naming thy 

1134 
*} 

1135 

1136 
Thus ML antiquotations like @{const_name Pure.eq} may be used already. 

1137 
Later the application is moved to the current Isabelle version, and 

1138 
the auxiliary aliases are deleted. 

1139 

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

1140 
* 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

1141 
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

1142 
instantiated theorem. 
04448228381d
explicit eigencontext for attributes "where", "of", and corresponding read_instantiate, instantiate_tac;
wenzelm
parents:
55139
diff
changeset

1143 

55152  1144 
* Obsolete attribute "standard" has been discontinued (legacy since 
1145 
Isabelle2012). Potential INCOMPATIBILITY, use explicit 'for' context 

1146 
where instantiations with schematic variables are intended (for 

1147 
declaration commands like 'lemmas' or attributes like "of"). The 

1148 
following temporary definition may help to port old applications: 

1149 

1150 
attribute_setup standard = 

1151 
"Scan.succeed (Thm.rule_attribute (K Drule.export_without_context))" 

1152 

55001  1153 
* More thorough check of proof context for goal statements and 
55006  1154 
attributed fact expressions (concerning background theory, declared 
1155 
hyps). Potential INCOMPATIBILITY, tools need to observe standard 

1156 
context discipline. See also Assumption.add_assumes and the more 

1157 
primitive Thm.assume_hyps. 

55001  1158 

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

1159 
* Inner syntax token language allows regular quoted strings "..." 
0b7a0c1fdf7e
inner syntax token language allows regular quoted strings;
wenzelm
parents:
55049
diff
changeset

1160 
(only makes sense in practice, if outer syntax is delimited 
57452  1161 
differently, e.g. via cartouches). 
1162 

57504  1163 
* Command 'print_term_bindings' supersedes 'print_binds' for clarity, 
1164 
but the latter is retained some time as Proof General legacy. 

1165 

57452  1166 
* Code generator preprocessor: explicit control of simp tracing on a 
1167 
perconstant basis. See attribute "code_preproc". 

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

1168 

55001  1169 

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

1170 
*** HOL *** 
63b441f49645
moving generic lemmas out of theory parity, disregarding some unused auxiliary lemmas;
haftmann
parents:
54055
diff
changeset

1171 

57504  1172 
* Code generator: enforce case of identifiers only for strict target 
1173 
language requirements. INCOMPATIBILITY. 

1174 

1175 
* Code generator: explicit proof contexts in many ML interfaces. 

1176 
INCOMPATIBILITY. 

1177 

1178 
* Code generator: minimize exported identifiers by default. Minor 

1179 
INCOMPATIBILITY. 

1180 

1181 
* Code generation for SML and OCaml: dropped arcane "no_signatures" 

1182 
option. Minor INCOMPATIBILITY. 

1183 

1184 
* "declare [[code abort: ...]]" replaces "code_abort ...". 

1185 
INCOMPATIBILITY. 

1186 

1187 
* "declare [[code drop: ...]]" drops all code equations associated 

1188 
with the given constants. 

1189 

1190 
* Code generations are provided for make, fields, extend and truncate 

1191 
operations on records. 

57437  1192 

57452  1193 
* Command and antiquotation "value" are now hardcoded against nbe and 
1194 
ML. Minor INCOMPATIBILITY. 

1195 

57504  1196 
* Renamed command 'enriched_type' to 'functor'. INCOMPATIBILITY. 
1197 

1198 
* The symbol "\<newline>" may be used within char or string literals 

1199 
to represent (Char Nibble0 NibbleA), i.e. ASCII newline. 

1200 

1201 
* Qualified String.implode and String.explode. INCOMPATIBILITY. 

56923  1202 

57452  1203 
* Simplifier: Enhanced solver of preconditions of rewrite rules can 
1204 
now deal with conjunctions. For help with converting proofs, the old 

1205 
behaviour of the simplifier can be restored like this: declare/using 

1206 
[[simp_legacy_precond]]. This configuration option will disappear 

1207 
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

1208 

55139  1209 
* Simproc "finite_Collect" is no longer enabled by default, due to 
1210 
spurious crashes and other surprises. Potential INCOMPATIBILITY. 

1211 

57452  1212 
* Moved new (co)datatype package and its dependencies from session 
1213 
"HOLBNF" to "HOL". The commands 'bnf', 'wrap_free_constructors', 

1214 
'datatype_new', 'codatatype', 'primcorec', 'primcorecursive' are now 

1215 
part of theory "Main". 

1216 

55098  1217 
Theory renamings: 
1218 
FunDef.thy ~> Fun_Def.thy (and Fun_Def_Base.thy) 

1219 
Library/Wfrec.thy ~> Wfrec.thy 

1220 
Library/Zorn.thy ~> Zorn.thy 

1221 
Cardinals/Order_Relation.thy ~> Order_Relation.thy 

1222 
Library/Order_Union.thy ~> Cardinals/Order_Union.thy 

1223 
Cardinals/Cardinal_Arithmetic_Base.thy ~> BNF_Cardinal_Arithmetic.thy 

1224 
Cardinals/Cardinal_Order_Relation_Base.thy ~> BNF_Cardinal_Order_Relation.thy 

1225 
Cardinals/Constructions_on_Wellorders_Base.thy ~> BNF_Constructions_on_Wellorders.thy 

1226 
Cardinals/Wellorder_Embedding_Base.thy ~> BNF_Wellorder_Embedding.thy 

1227 
Cardinals/Wellorder_Relation_Base.thy ~> BNF_Wellorder_Relation.thy 

1228 
BNF/Ctr_Sugar.thy ~> Ctr_Sugar.thy 

1229 
BNF/Basic_BNFs.thy ~> Basic_BNFs.thy 

1230 
BNF/BNF_Comp.thy ~> BNF_Comp.thy 

1231 
BNF/BNF_Def.thy ~> BNF_Def.thy 

1232 
BNF/BNF_FP_Base.thy ~> BNF_FP_Base.thy 

1233 
BNF/BNF_GFP.thy ~> BNF_GFP.thy 

1234 
BNF/BNF_LFP.thy ~> BNF_LFP.thy 

1235 
BNF/BNF_Util.thy ~> BNF_Util.thy 

1236 
BNF/Coinduction.thy ~> Coinduction.thy 

1237 
BNF/More_BNFs.thy ~> Library/More_BNFs.thy 

1238 
BNF/Countable_Type.thy ~> Library/Countable_Set_Type.thy 

1239 
BNF/Examples/* ~> BNF_Examples/* 

57452  1240 

55098  1241 
New theories: 
1242 
Wellorder_Extension.thy (split from Zorn.thy) 

1243 
Library/Cardinal_Notations.thy 

56942  1244 
Library/BNF_Axomatization.thy 
55098  1245 
BNF_Examples/Misc_Primcorec.thy 
1246 
BNF_Examples/Stream_Processor.thy 

57452  1247 

55519  1248 
Discontinued theories: 
55098  1249 
BNF/BNF.thy 
1250 
BNF/Equiv_Relations_More.thy 

57452  1251 

1252 
INCOMPATIBILITY. 

55098  1253 

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

1254 
* New (co)datatype package: 
57452  1255 
 Command 'primcorec' is fully implemented. 
1256 
 Command 'datatype_new' generates size functions ("size_xxx" and 

1257 
"size") as required by 'fun'. 

1258 
 BNFs are integrated with the Lifting tool and newstyle 

1259 
(co)datatypes with Transfer. 

1260 
 Renamed commands: 

55875  1261 
datatype_new_compat ~> datatype_compat 
1262 
primrec_new ~> primrec 

1263 
wrap_free_constructors ~> free_constructors 

1264 
INCOMPATIBILITY. 

57452  1265 
 The generated constants "xxx_case" and "xxx_rec" have been renamed 
55875  1266 
"case_xxx" and "rec_xxx" (e.g., "prod_case" ~> "case_prod"). 
1267 
INCOMPATIBILITY. 

57452  1268 
 The constant "xxx_(un)fold" and related theorems are no longer 
1269 
generated. Use "xxx_(co)rec" or define "xxx_(un)fold" manually 

1270 
using "prim(co)rec". 

55875  1271 
INCOMPATIBILITY. 
57452  1272 
 No discriminators are generated for nullary constructors by 
1273 
default, eliminating the need for the odd "=:" syntax. 

57091  1274 
INCOMPATIBILITY. 
57452  1275 
 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

1276 
"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

1277 
"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

1278 
INCOMPATIBILITY. 
55875  1279 

55643  1280 
* Old datatype package: 
57452  1281 
 The generated theorems "xxx.cases" and "xxx.recs" have been 
1282 
renamed "xxx.case" and "xxx.rec" (e.g., "sum.cases" > 

1283 
"sum.case"). INCOMPATIBILITY. 

1284 
 The generated constants "xxx_case", "xxx_rec", and "xxx_size" have 

1285 
been renamed "case_xxx", "rec_xxx", and "size_xxx" (e.g., 

1286 
"prod_case" ~> "case_prod"). INCOMPATIBILITY. 

1287 

1288 
* The types "'a list" and "'a option", their set and map functions, 

1289 
their relators, and their selectors are now produced using the new 

1290 
BNFbased datatype package. 

1291 

55519  1292 
Renamed constants: 
1293 
Option.set ~> set_option 

1294 
Option.map ~> map_option 

55525  1295 
option_rel ~> rel_option 
57452  1296 

55519  1297 
Renamed theorems: 
55585  1298 
set_def ~> set_rec[abs_def] 
55519  1299 
map_def ~> map_rec[abs_def] 
1300 
Option.map_def ~> map_option_case[abs_def] (with "case_option" instead of "rec_option") 

56652  1301 
option.recs ~> option.rec 
55524
f41ef840f09d
folded 'list_all2' with the relator generated by 'datatype_new'
blanchet
parents:
55519
diff
changeset

1302 
list_all2_def ~> list_all2_iff 
55585  1303 
set.simps ~> set_simps (or the slightly different "list.set") 
55519  1304 
map.simps ~> list.map 
1305 
hd.simps ~> list.sel(1) 

1306 
tl.simps ~> list.sel(23) 

1307 
the.simps ~> option.sel 

57452  1308 

1309 
INCOMPATIBILITY. 

55519  1310 

55933  1311 
* The following map functions and relators have been renamed: 
55939  1312 
sum_map ~> map_sum 
1313 
map_pair ~> map_prod 

55944  1314 
prod_rel ~> rel_prod 
55943  1315 
sum_rel ~> rel_sum 
55945  1316 
fun_rel ~> rel_fun 
55942  1317 
set_rel ~> rel_set 
1318 
filter_rel ~> rel_filter 

57452  1319 
fset_rel ~> rel_fset (in "src/HOL/Library/FSet.thy") 
1320 
cset_rel ~> rel_cset (in "src/HOL/Library/Countable_Set_Type.thy") 

1321 
vset ~> rel_vset (in "src/HOL/Library/Quotient_Set.thy") 

1322 

1323 
INCOMPATIBILITY. 

1324 

57826  1325 
* Lifting and Transfer: 
1326 
 a type variable as a raw type is supported 

1327 
 stronger reflexivity prover 

1328 
 rep_eq is always generated by lift_definition 

57856  1329 
 setup for Lifting/Transfer is now automated for BNFs 
57826  1330 
+ holds for BNFs that do not contain a dead variable 
57856  1331 
+ relator_eq, relator_mono, relator_distr, relator_domain, 
57826  1332 
relator_eq_onp, quot_map, transfer rules for bi_unique, bi_total, 
1333 
right_unique, right_total, left_unique, left_total are proved 

1334 
automatically 

1335 
+ definition of a predicator is generated automatically 

1336 
+ simplification rules for a predicator definition are proved 

1337 
automatically for datatypes 

1338 
 consolidation of the setup of Lifting/Transfer 

57856  1339 
+ property that a relator preservers reflexivity is not needed any 
57826  1340 
more 
1341 
Minor INCOMPATIBILITY. 

57856  1342 
+ left_total and left_unique rules are now transfer rules 
57826  1343 
(reflexivity_rule attribute not needed anymore) 
1344 
INCOMPATIBILITY. 

57856  1345 
+ Domainp does not have to be a separate assumption in 
57826  1346 
relator_domain theorems (=> more natural statement) 
1347 
INCOMPATIBILITY. 

1348 
 registration of code equations is more robust 

1349 
Potential INCOMPATIBILITY. 

1350 
 respectfulness proof obligation is preprocessed to a more readable 

1351 
form 

1352 
Potential INCOMPATIBILITY. 

1353 
 eq_onp is always unfolded in respectfulness proof obligation 

1354 
Potential INCOMPATIBILITY. 

57856  1355 
 unregister lifting setup for Code_Numeral.integer and 
57826  1356 
Code_Numeral.natural 
1357 
Potential INCOMPATIBILITY. 

1358 
 Lifting.invariant > eq_onp 

1359 
INCOMPATIBILITY. 

57856  1360 

57508  1361 
* New internal SAT solver "cdclite" that produces models and proof 
1362 
traces. This solver replaces the internal SAT solvers "enumerate" and 

1363 
"dpll". Applications that explicitly used one of these two SAT 

1364 
solvers should use "cdclite" instead. In addition, "cdclite" is now 

1365 
the default SAT solver for the "sat" and "satx" proof methods and 

1366 
corresponding tactics; the old default can be restored using "declare 

1367 
[[sat_solver = zchaff_with_proofs]]". Minor INCOMPATIBILITY. 

1368 

1369 
* SMT module: A new version of the SMT module, temporarily called 

1370 
"SMT2", uses SMTLIB 2 and supports recent versions of Z3 (e.g., 

1371 
4.3). The new proof method is called "smt2". CVC3 and CVC4 are also 

1372 
supported as oracles. Yices is no longer supported, because no version 

1373 
of the solver can handle both SMTLIB 2 and quantifiers. 

1374 

1375 
* Activation of Z3 now works via "z3_non_commercial" system option 

1376 
(without requiring restart), instead of former settings variable 

1377 
"Z3_NON_COMMERCIAL". The option can be edited in Isabelle/jEdit menu 

1378 
Plugin Options / Isabelle / General. 

1379 

1380 
* Sledgehammer: 

1381 
 Z3 can now produce Isar proofs. 

1382 
 MaSh overhaul: 

57532  1383 
. New SMLbased learning algorithms eliminate the dependency on 
57508  1384 
Python and increase performance and reliability. 
1385 
. MaSh and MeSh are now used by default together with the 

1386 
traditional MePo (MengPaulson) relevance filter. To disable 

1387 
MaSh, set the "MaSh" system option in Isabelle/jEdit Plugin 

1388 
Options / Isabelle / General to "none". 

1389 
 New option: 

1390 
smt_proofs 

1391 
 Renamed options: 

1392 
isar_compress ~> compress 

1393 
isar_try0 ~> try0 

1394 

1395 
INCOMPATIBILITY. 

1396 

1397 
* Removed solvers remote_cvc3 and remote_z3. Use cvc3 and z3 instead. 

1398 

1399 
* Nitpick: 

1400 
 Fixed soundness bug whereby mutually recursive datatypes could 

1401 
take infinite values. 

1402 
 Fixed soundness bug with lowlevel number functions such as 

1403 
"Abs_Integ" and "Rep_Integ". 

1404 
 Removed "std" option. 

1405 
 Renamed "show_datatypes" to "show_types" and "hide_datatypes" to 

1406 
"hide_types". 

1407 

1408 
* Metis: Removed legacy proof method 'metisFT'. Use 'metis 

1409 
(full_types)' instead. INCOMPATIBILITY. 

1410 
