author  wenzelm 
Mon, 16 Feb 2009 21:23:33 +0100  
changeset 29758  7a3b5bbed313 
parent 29671  c82a76a66e80 
child 29788  1b80ebe713a4 
permissions  rwrr 
5363  1 
Isabelle NEWS  history userrelevant changes 
2 
============================================== 

2553  3 

27122  4 
New in this Isabelle version 
5 
 

27104
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

6 

27599  7 
*** General *** 
8 

28504
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

9 
* Simplified main Isabelle executables, with less surprises on 
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

10 
caseinsensitive filesystems (such as Mac OS). 
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

11 

7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

12 
 The main Isabelle tool wrapper is now called "isabelle" instead of 
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

13 
"isatool." 
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

14 

7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

15 
 The former "isabelle" alias for "isabelleprocess" has been 
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

16 
removed (should rarely occur to regular users). 
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

17 

28915
0642cbb60c98
removed obsolete isabelleinterface executable and ISABELLE_INTERFACE setting;
wenzelm
parents:
28914
diff
changeset

18 
 The former "isabelleinterface" and its alias "Isabelle" have been 
0642cbb60c98
removed obsolete isabelleinterface executable and ISABELLE_INTERFACE setting;
wenzelm
parents:
28914
diff
changeset

19 
removed (interfaces are now regular Isabelle tools). 
28504
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

20 

7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

21 
Within scripts and make files, the Isabelle environment variables 
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

22 
ISABELLE_TOOL and ISABELLE_PROCESS replace old ISATOOL and ISABELLE, 
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

23 
respectively. (The latter are still available as legacy feature.) 
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

24 

28915
0642cbb60c98
removed obsolete isabelleinterface executable and ISABELLE_INTERFACE setting;
wenzelm
parents:
28914
diff
changeset

25 
The old isabelleinterface wrapper could react in confusing ways if 
0642cbb60c98
removed obsolete isabelleinterface executable and ISABELLE_INTERFACE setting;
wenzelm
parents:
28914
diff
changeset

26 
the interface was uninstalled or changed otherwise. Individual 
0642cbb60c98
removed obsolete isabelleinterface executable and ISABELLE_INTERFACE setting;
wenzelm
parents:
28914
diff
changeset

27 
interface tool configuration is now more explicit, see also the 
0642cbb60c98
removed obsolete isabelleinterface executable and ISABELLE_INTERFACE setting;
wenzelm
parents:
28914
diff
changeset

28 
Isabelle system manual. In particular, Proof General is now available 
0642cbb60c98
removed obsolete isabelleinterface executable and ISABELLE_INTERFACE setting;
wenzelm
parents:
28914
diff
changeset

29 
via "isabelle emacs". 
28504
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

30 

7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

31 
INCOMPATIBILITY, need to adapt derivative scripts. Users may need to 
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

32 
purge installed copies of Isabelle executables and rerun "isabelle 
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

33 
install p ...", or use symlinks. 
7ad7d7d6df47
simplified main Isabelle executables: removed Isabelle and isabelle (replaced by isabelleprocess), renamed isatool to isabelle;
wenzelm
parents:
28475
diff
changeset

34 

28914
f993cbffc42a
default for ISABELLE_HOME_USER is now ~/.isabelle instead of ~/isabelle;
wenzelm
parents:
28856
diff
changeset

35 
* The default for ISABELLE_HOME_USER is now ~/.isabelle instead of the 
f993cbffc42a
default for ISABELLE_HOME_USER is now ~/.isabelle instead of ~/isabelle;
wenzelm
parents:
28856
diff
changeset

36 
old ~/isabelle, which was slightly nonstandard and apt cause 
f993cbffc42a
default for ISABELLE_HOME_USER is now ~/.isabelle instead of ~/isabelle;
wenzelm
parents:
28856
diff
changeset

37 
surprises on caseinsensitive filesystems. 
f993cbffc42a
default for ISABELLE_HOME_USER is now ~/.isabelle instead of ~/isabelle;
wenzelm
parents:
28856
diff
changeset

38 

f993cbffc42a
default for ISABELLE_HOME_USER is now ~/.isabelle instead of ~/isabelle;
wenzelm
parents:
28856
diff
changeset

39 
INCOMPATIBILITY, need to move existing ~/isabelle/etc, 
f993cbffc42a
default for ISABELLE_HOME_USER is now ~/.isabelle instead of ~/isabelle;
wenzelm
parents:
28856
diff
changeset

40 
~/isabelle/heaps, ~/isabelle/browser_info to the new place. Special 
f993cbffc42a
default for ISABELLE_HOME_USER is now ~/.isabelle instead of ~/isabelle;
wenzelm
parents:
28856
diff
changeset

41 
care is required when using older releases of Isabelle. Note that 
f993cbffc42a
default for ISABELLE_HOME_USER is now ~/.isabelle instead of ~/isabelle;
wenzelm
parents:
28856
diff
changeset

42 
ISABELLE_HOME_USER can be changed in Isabelle/etc/settings of any 
f993cbffc42a
default for ISABELLE_HOME_USER is now ~/.isabelle instead of ~/isabelle;
wenzelm
parents:
28856
diff
changeset

43 
Isabelle distribution. 
f993cbffc42a
default for ISABELLE_HOME_USER is now ~/.isabelle instead of ~/isabelle;
wenzelm
parents:
28856
diff
changeset

44 

29161
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

45 
* Proofs of fully specified statements are run in parallel on 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

46 
multicore systems. A speedup factor of 23 can be expected on a 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

47 
regular 4core machine, if the initial heap space is made reasonably 
29162  48 
large (cf. Poly/ML option H). [Poly/ML 5.2.1 or later] 
29161
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

49 

28252  50 
* The Isabelle System Manual (system) has been updated, with formally 
51 
checked references as hyperlinks. 

52 

27599  53 
* Generalized Isar history, with support for linear undo, direct state 
54 
addressing etc. 

27104
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

55 

27191  56 
* Recovered hiding of consts, which was accidentally broken in 
57 
Isabelle2007. Potential INCOMPATIBILITY, ``hide const c'' really 

58 
makes c inaccessible; consider using ``hide (open) const c'' instead. 

59 

27599  60 
* Removed exotic 'token_translation' command. INCOMPATIBILITY, use ML 
61 
interface instead. 

62 

29161
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

63 
* There is a new syntactic category "float_const" for signed decimal 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

64 
fractions (e.g. 123.45 or 123.45). 
28964  65 

27599  66 

67 
*** Pure *** 

68 

29608  69 
* Class declaration: sc. "base sort" must not be given in import list 
70 
any longer but is inferred from the specification. Particularly in HOL, 

71 
write 

72 

73 
class foo = ... instead of class foo = type + ... 

74 

29616  75 
* Type binding gradually replaces formerly used type bstring for names 
28965  76 
to be bound. Name space interface for declarations has been simplified: 
77 

78 
NameSpace.declare: NameSpace.naming 

29616  79 
> binding > NameSpace.T > string * NameSpace.T 
28965  80 
NameSpace.bind: NameSpace.naming 
29616  81 
> binding * 'a > 'a NameSpace.table > string * 'a NameSpace.table 
28965  82 
(*exception Symtab.DUP*) 
83 

84 
See further modules src/Pure/General/binding.ML and 

85 
src/Pure/General/name_space.ML 

86 

28952
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

87 
* Module moves in repository: 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

88 
src/Pure/Tools/value.ML ~> src/Tools/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

89 
src/Pure/Tools/quickcheck.ML ~> src/Tools/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

90 

28856
5e009a80fe6d
Pure syntax: more coherent treatment of aprop, permanent TERM and &&&;
wenzelm
parents:
28855
diff
changeset

91 
* Slightly more coherent Pure syntax, with updated documentation in 
5e009a80fe6d
Pure syntax: more coherent treatment of aprop, permanent TERM and &&&;
wenzelm
parents:
28855
diff
changeset

92 
isarref manual. Removed locales meta_term_syntax and 
5e009a80fe6d
Pure syntax: more coherent treatment of aprop, permanent TERM and &&&;
wenzelm
parents:
28855
diff
changeset

93 
meta_conjunction_syntax: TERM and &&& (formerly &&) are now permanent, 
5e009a80fe6d
Pure syntax: more coherent treatment of aprop, permanent TERM and &&&;
wenzelm
parents:
28855
diff
changeset

94 
INCOMPATIBILITY in rare situations. 
5e009a80fe6d
Pure syntax: more coherent treatment of aprop, permanent TERM and &&&;
wenzelm
parents:
28855
diff
changeset

95 

28629
c5a915b45390
goaldirected proof now enforces strict proof irrelevance wrt. sort hypotheses;
wenzelm
parents:
28606
diff
changeset

96 
* Goaldirected proof now enforces strict proof irrelevance wrt. sort 
c5a915b45390
goaldirected proof now enforces strict proof irrelevance wrt. sort hypotheses;
wenzelm
parents:
28606
diff
changeset

97 
hypotheses. Sorts required in the course of reasoning need to be 
c5a915b45390
goaldirected proof now enforces strict proof irrelevance wrt. sort hypotheses;
wenzelm
parents:
28606
diff
changeset

98 
covered by the constraints in the initial statement, completed by the 
c5a915b45390
goaldirected proof now enforces strict proof irrelevance wrt. sort hypotheses;
wenzelm
parents:
28606
diff
changeset

99 
type instance information of the background theory. Nontrivial sort 
c5a915b45390
goaldirected proof now enforces strict proof irrelevance wrt. sort hypotheses;
wenzelm
parents:
28606
diff
changeset

100 
hypotheses, which rarely occur in practice, may be specified via 
28633  101 
vacuous propositions of the form SORT_CONSTRAINT('a::c). For example: 
28629
c5a915b45390
goaldirected proof now enforces strict proof irrelevance wrt. sort hypotheses;
wenzelm
parents:
28606
diff
changeset

102 

c5a915b45390
goaldirected proof now enforces strict proof irrelevance wrt. sort hypotheses;
wenzelm
parents:
28606
diff
changeset

103 
lemma assumes "SORT_CONSTRAINT('a::empty)" shows False ... 
c5a915b45390
goaldirected proof now enforces strict proof irrelevance wrt. sort hypotheses;
wenzelm
parents:
28606
diff
changeset

104 

c5a915b45390
goaldirected proof now enforces strict proof irrelevance wrt. sort hypotheses;
wenzelm
parents:
28606
diff
changeset

105 
The result contains an implicit sort hypotheses as before  
28631  106 
SORT_CONSTRAINT premises are eliminated as part of the canonical rule 
107 
normalization. 

28629
c5a915b45390
goaldirected proof now enforces strict proof irrelevance wrt. sort hypotheses;
wenzelm
parents:
28606
diff
changeset

108 

28178
e56b8b044bef
* Changed defaults for unify configuration options;
wenzelm
parents:
28143
diff
changeset

109 
* Changed defaults for unify configuration options: 
e56b8b044bef
* Changed defaults for unify configuration options;
wenzelm
parents:
28143
diff
changeset

110 

e56b8b044bef
* Changed defaults for unify configuration options;
wenzelm
parents:
28143
diff
changeset

111 
unify_trace_bound = 50 (formerly 25) 
e56b8b044bef
* Changed defaults for unify configuration options;
wenzelm
parents:
28143
diff
changeset

112 
unify_search_bound = 60 (formerly 30) 
e56b8b044bef
* Changed defaults for unify configuration options;
wenzelm
parents:
28143
diff
changeset

113 

28143  114 
* Different bookkeeping for code equations: 
115 
a) On theory merge, the last set of code equations for a particular constant 

116 
is taken (in accordance with the policy applied by other parts of the 

117 
code generator framework). 

118 
b) Code equations stemming from explicit declarations (e.g. code attribute) 

119 
gain priority over default code equations stemming from definition, primrec, 

120 
fun etc. 

121 
INCOMPATIBILITY. 

122 

28058  123 
* Global versions of theorems stemming from classes do not carry 
124 
a parameter prefix any longer. INCOMPATIBILITY. 

125 

28710  126 
* Dropped locale element "includes". This is a major INCOMPATIBILITY. 
127 
In existing theorem specifications replace the includes element by the 

128 
respective context elements of the included locale, omitting those that 

129 
are already present in the theorem specification. Multiple assume 

130 
elements of a locale should be replaced by a single one involving the 

131 
locale predicate. In the proof body, declarations (most notably 

132 
theorems) may be regained by interpreting the respective locales in the 

133 
proof context as required (command "interpret"). 

134 
If using "includes" in replacement of a target solely because the 

135 
parameter types in the theorem are not as general as in the target, 

136 
consider declaring a new locale with additional type constraints on the 

137 
parameters (context element "constrains"). 

138 

29253  139 
* Dropped "locale (open)". INCOMPATIBILITY. 
27761
b95e9ba0ca1d
Interpretation command (theory/proof context) no longer simplifies goal.
ballarin
parents:
27717
diff
changeset

140 

28085
914183e229e9
Interpretation commands no longer accept interpretation attributes.
ballarin
parents:
28067
diff
changeset

141 
* Interpretation commands no longer attempt to simplify goal. 
27761
b95e9ba0ca1d
Interpretation command (theory/proof context) no longer simplifies goal.
ballarin
parents:
27717
diff
changeset

142 
INCOMPATIBILITY: in rare situations the generated goal differs. Use 
b95e9ba0ca1d
Interpretation command (theory/proof context) no longer simplifies goal.
ballarin
parents:
27717
diff
changeset

143 
methods intro_locales and unfold_locales to clarify. 
27681  144 

28085
914183e229e9
Interpretation commands no longer accept interpretation attributes.
ballarin
parents:
28067
diff
changeset

145 
* Interpretation commands no longer accept interpretation attributes. 
914183e229e9
Interpretation commands no longer accept interpretation attributes.
ballarin
parents:
28067
diff
changeset

146 
INCOMPATBILITY. 
914183e229e9
Interpretation commands no longer accept interpretation attributes.
ballarin
parents:
28067
diff
changeset

147 

29253  148 
* Complete reimplementation of locales. INCOMPATIBILITY. 
149 
The most important changes are listed below. See documentation 

150 
(forthcoming) and tutorial (also forthcoming) for details. 

151 

152 
 In locale expressions, instantiation replaces renaming. Parameters 

153 
must be declared in a for clause. To aid compatibility with previous 

154 
parameter inheritance, in locale declarations, parameters that are not 

155 
'touched' (instantiation position "_" or omitted) are implicitly added 

156 
with their syntax at the beginning of the for clause. 

157 

158 
 Syntax from abbreviations and definitions in locales is available in 

159 
locale expressions and context elements. The latter is particularly 

160 
useful in locale declarations. 

161 

162 
 More flexible mechanisms to qualify names generated by locale 

163 
expressions. Qualifiers (prefixes) may be specified in locale 

164 
expressions. Available are normal qualifiers (syntax "name:") and strict 

165 
qualifiers (syntax "name!:"). The latter must occur in name references 

166 
and are useful to avoid accidental hiding of names, the former are 

167 
optional. Qualifiers derived from the parameter names of a locale are no 

168 
longer generated. 

169 

170 
 "sublocale l < e" replaces "interpretation l < e". The instantiation 

171 
clause in "interpretation" and "interpret" (square brackets) is no 

172 
longer available. Use locale expressions. 

173 

174 
 When converting proof scripts, be sure to replace qualifiers in 

175 
"interpretation" and "interpret" by strict qualifiers. Qualifiers in 

176 
locale expressions range over a single locale instance only. 

177 

27651
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

178 
* Command 'instance': attached definitions no longer accepted. 
27141
9bfcdb1905e1
* Attributes cases, induct, coinduct support del option.
wenzelm
parents:
27122
diff
changeset

179 
INCOMPATIBILITY, use proper 'instantiation' target. 
27104
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

180 

791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

181 
* Keyword 'code_exception' now named 'code_abort'. INCOMPATIBILITY. 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

182 

28114  183 
* The 'axiomatization' command now only works within a global theory 
184 
context. INCOMPATIBILITY. 

185 

27104
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

186 

27381  187 
*** Document preparation *** 
188 

189 
* Antiquotation @{lemma} now imitates a regular terminal proof, 

27392  190 
demanding keyword 'by' and supporting the full method expression 
27519
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

191 
syntax just like the Isar command 'by'. 
27381  192 

193 

27104
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

194 
*** HOL *** 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

195 

29650  196 
* Theory "Reflection" now resides in HOL/Library. 
197 

29628  198 
* Entry point to Word library now simply named "Word". INCOMPATIBILITY. 
199 

29197
6d4cb27ed19c
adapted HOL source structure to distribution layout
haftmann
parents:
29182
diff
changeset

200 
* Made source layout more coherent with logical distribution 
6d4cb27ed19c
adapted HOL source structure to distribution layout
haftmann
parents:
29182
diff
changeset

201 
structure: 
28952
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

202 

15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

203 
src/HOL/Library/RType.thy ~> src/HOL/Typerep.thy 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

204 
src/HOL/Library/Code_Message.thy ~> src/HOL/ 
29197
6d4cb27ed19c
adapted HOL source structure to distribution layout
haftmann
parents:
29182
diff
changeset

205 
src/HOL/Library/Dense_Linear_Order.thy ~> src/HOL/ 
28952
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

206 
src/HOL/Library/GCD.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

207 
src/HOL/Library/Order_Relation.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

208 
src/HOL/Library/Parity.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

209 
src/HOL/Library/Univ_Poly.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

210 
src/HOL/Real/ContNotDenum.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

211 
src/HOL/Real/Lubs.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

212 
src/HOL/Real/PReal.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

213 
src/HOL/Real/Rational.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

214 
src/HOL/Real/RComplete.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

215 
src/HOL/Real/RealDef.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

216 
src/HOL/Real/RealPow.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

217 
src/HOL/Real/Real.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

218 
src/HOL/Complex/Complex_Main.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

219 
src/HOL/Complex/Complex.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

220 
src/HOL/Complex/FrechetDeriv.thy ~> src/HOL/ 
29197
6d4cb27ed19c
adapted HOL source structure to distribution layout
haftmann
parents:
29182
diff
changeset

221 
src/HOL/Complex/Fundamental_Theorem_Algebra.thy ~> src/HOL/ 
28952
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

222 
src/HOL/Hyperreal/Deriv.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

223 
src/HOL/Hyperreal/Fact.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

224 
src/HOL/Hyperreal/Integration.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

225 
src/HOL/Hyperreal/Lim.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

226 
src/HOL/Hyperreal/Ln.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

227 
src/HOL/Hyperreal/Log.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

228 
src/HOL/Hyperreal/MacLaurin.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

229 
src/HOL/Hyperreal/NthRoot.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

230 
src/HOL/Hyperreal/Series.thy ~> src/HOL/ 
29197
6d4cb27ed19c
adapted HOL source structure to distribution layout
haftmann
parents:
29182
diff
changeset

231 
src/HOL/Hyperreal/SEQ.thy ~> src/HOL/ 
28952
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

232 
src/HOL/Hyperreal/Taylor.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

233 
src/HOL/Hyperreal/Transcendental.thy ~> src/HOL/ 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

234 
src/HOL/Real/Float ~> src/HOL/Library/ 
29197
6d4cb27ed19c
adapted HOL source structure to distribution layout
haftmann
parents:
29182
diff
changeset

235 
src/HOL/Real/HahnBanach ~> src/HOL/HahnBanach 
6d4cb27ed19c
adapted HOL source structure to distribution layout
haftmann
parents:
29182
diff
changeset

236 
src/HOL/Real/RealVector.thy ~> src/HOL/ 
28952
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

237 

15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

238 
src/HOL/arith_data.ML ~> src/HOL/Tools 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

239 
src/HOL/hologic.ML ~> src/HOL/Tools 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

240 
src/HOL/simpdata.ML ~> src/HOL/Tools 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

241 
src/HOL/int_arith1.ML ~> src/HOL/Tools/int_arith.ML 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

242 
src/HOL/int_factor_simprocs.ML ~> src/HOL/Tools 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

243 
src/HOL/nat_simprocs.ML ~> src/HOL/Tools 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

244 
src/HOL/Real/float_arith.ML ~> src/HOL/Tools 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

245 
src/HOL/Real/float_syntax.ML ~> src/HOL/Tools 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

246 
src/HOL/Real/rat_arith.ML ~> src/HOL/Tools 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

247 
src/HOL/Real/real_arith.ML ~> src/HOL/Tools 
15a4b2cf8c34
made repository layout more coherent with logical distribution structure; stripped some $Id$s
haftmann
parents:
28915
diff
changeset

248 

29398  249 
src/HOL/Library/Array.thy ~> src/HOL/Imperative_HOL 
250 
src/HOL/Library/Heap_Monad.thy ~> src/HOL/Imperative_HOL 

251 
src/HOL/Library/Heap.thy ~> src/HOL/Imperative_HOL 

252 
src/HOL/Library/Imperative_HOL.thy ~> src/HOL/Imperative_HOL 

253 
src/HOL/Library/Ref.thy ~> src/HOL/Imperative_HOL 

254 
src/HOL/Library/Relational.thy ~> src/HOL/Imperative_HOL 

255 

28741  256 
* If methods "eval" and "evaluation" encounter a structured proof state 
257 
with !!/==>, only the conclusion is evaluated to True (if possible), 

258 
avoiding strange error messages. 

259 

260 
* Simplifier: simproc for let expressions now unfolds if bound variable 

261 
occurs at most one time in let expression body. INCOMPATIBILITY. 

262 

28685  263 
* New classes "top" and "bot" with corresponding operations "top" and "bot" 
264 
in theory Orderings; instantiation of class "complete_lattice" requires 

265 
instantiation of classes "top" and "bot". INCOMPATIBILITY. 

266 

267 
* Changed definition lemma "less_fun_def" in order to provide an instance 

268 
for preorders on functions; use lemma "less_le" instead. INCOMPATIBILITY. 

269 

28604
f36496b73227
generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents:
28563
diff
changeset

270 
* Unified theorem tables for both code code generators. Thus 
f36496b73227
generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents:
28563
diff
changeset

271 
[code func] has disappeared and only [code] remains. INCOMPATIBILITY. 
f36496b73227
generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents:
28563
diff
changeset

272 

28685  273 
* Constants "undefined" and "default" replace "arbitrary". Usually 
274 
"undefined" is the right choice to replace "arbitrary", though logically 

275 
there is no difference. INCOMPATIBILITY. 

28604
f36496b73227
generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents:
28563
diff
changeset

276 

f36496b73227
generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents:
28563
diff
changeset

277 
* Generic ATP manager for Sledgehammer, based on ML threads instead of 
28605  278 
Posix processes. Avoids potentially expensive forking of the ML 
279 
process. New threadbased implementation also works on nonUnix 

280 
platforms (Cygwin). Provers are no longer hardwired, but defined 

28606  281 
within the theory via plain ML wrapper functions. Basic Sledgehammer 
282 
commands are covered in the isarref manual 

28604
f36496b73227
generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents:
28563
diff
changeset

283 

f36496b73227
generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents:
28563
diff
changeset

284 
* Wrapper scripts for remote SystemOnTPTP service allows to use 
28475  285 
sledgehammer without local ATP installation (Vampire etc.). See also 
286 
ISABELLE_HOME/contrib/SystemOnTPTP and the VAMPIRE_HOME setting 

28604
f36496b73227
generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents:
28563
diff
changeset

287 
variable. Other provers may be included via suitable ML wrappers, see 
f36496b73227
generic ATP manager based on threads (by Fabian Immler);
wenzelm
parents:
28563
diff
changeset

288 
also src/HOL/ATP_Linkup.thy. 
28474
d0b8b0a1fca5
Vampire wrapper script for remote SystemOnTPTP service (by Fabian Immler);
wenzelm
parents:
28350
diff
changeset

289 

28350  290 
* Normalization by evaluation now allows nonleftlinear equations. 
291 
Declare with attribute [code nbe]. 

292 

293 
* Command "value" now integrates different evaluation 

28248  294 
mechanisms. The result of the first successful evaluation mechanism 
295 
is printed. In square brackets a particular named evaluation 

296 
mechanisms may be specified (currently, [SML], [code] or [nbe]). See 

297 
further src/HOL/ex/Eval_Examples.thy. 

28227  298 

29125
d41182a8135c
method "sizechange" proves termination of functions; added more infrastructure for termination proofs
krauss
parents:
28966
diff
changeset

299 
* New method "sizechange" to automate termination proofs using (a 
29182  300 
modification of) the sizechange principle. Requires SAT solver. See 
301 
src/HOL/ex/Termination.thy for examples. 

29125
d41182a8135c
method "sizechange" proves termination of functions; added more infrastructure for termination proofs
krauss
parents:
28966
diff
changeset

302 

28088
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

303 
* HOL/Orderings: class "wellorder" moved here, with explicit induction 
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

304 
rule "less_induct" as assumption. For instantiation of "wellorder" by 
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

305 
means of predicate "wf", use rule wf_wellorderI. INCOMPATIBILITY. 
27823  306 

27793  307 
* HOL/Orderings: added class "preorder" as superclass of "order". 
308 
INCOMPATIBILITY: Instantiation proofs for order, linorder 

309 
etc. slightly changed. Some theorems named order_class.* now named 

310 
preorder_class.*. 

311 

28855  312 
* HOL/Finite_Set: added a new fold combinator of type 
313 
('a => 'b => 'b) => 'b => 'a set => 'b 

314 
Occasionally this is more convenient than the old fold combinator which is 

315 
now defined in terms of the new one and renamed to fold_image. 

316 

29671  317 
* HOL/Ring_and_Field and HOL/OrderedGroup: The lemmas "group_simps" and 
318 
"ring_simps" have been replaced by "algebra_simps" (which can be extended with 

319 
further lemmas!). At the moment both still exist but the former will disappear 

320 
at some point. 

321 

27793  322 
* HOL/Ring_and_Field and HOL/Divides: Definition of "op dvd" has been 
323 
moved to separate class dvd in Ring_and_Field; a couple of lemmas on 

324 
dvd has been generalized to class comm_semiring_1. Likewise a bunch 

325 
of lemmas from Divides has been generalized from nat to class 

326 
semiring_div. INCOMPATIBILITY. This involves the following theorem 

327 
renames resulting from duplicate elimination: 

27651
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

328 

16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

329 
dvd_def_mod ~> dvd_eq_mod_eq_0 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

330 
zero_dvd_iff ~> dvd_0_left_iff 
28559  331 
dvd_0 ~> dvd_0_right 
27651
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

332 
DIVISION_BY_ZERO_DIV ~> div_by_0 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

333 
DIVISION_BY_ZERO_MOD ~> mod_by_0 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

334 
mult_div ~> div_mult_self2_is_id 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

335 
mult_mod ~> mod_mult_self2_is_0 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

336 

27599  337 
* HOL/Library/GCD: Curried operations gcd, lcm (for nat) and zgcd, 
338 
zlcm (for int); carried together from various gcd/lcm developements in 

339 
the HOL Distribution. zgcd and zlcm replace former igcd and ilcm; 

340 
corresponding theorems renamed accordingly. INCOMPATIBILY. To 

341 
recover tupled syntax, use syntax declarations like: 

27556  342 

343 
hide (open) const gcd 

344 
abbreviation gcd where 

345 
"gcd == (%(a, b). GCD.gcd a b)" 

346 
notation (output) 

347 
GCD.gcd ("gcd '(_, _')") 

348 

349 
(analogously for lcm, zgcd, zlcm). 

350 

351 
* HOL/Real/Rational: 'Fract k 0' now equals '0'. INCOMPATIBILITY. 

27551  352 

28964  353 
* The real numbers offer decimal input syntax: 12.34 is translated into 
354 
1234/10^4. This translation is not reversed upon output. 

355 

27651
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

356 
* New ML antiquotation @{code}: takes constant as argument, generates 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

357 
corresponding code in background and inserts name of the corresponding 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

358 
resulting ML value/function/datatype constructor binding in place. 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

359 
All occurrences of @{code} with a single ML block are generated 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

360 
simultaneously. Provides a generic and safe interface for 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

361 
instrumentalizing code generation. See HOL/ex/Code_Antiq for a toy 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

362 
example, or HOL/Complex/ex/ReflectedFerrack for a more ambitious 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

363 
application. In future you ought refrain from adhoc compiling 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

364 
generated SML code on the ML toplevel. Note that (for technical 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

365 
reasons) @{code} cannot refer to constants for which userdefined 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

366 
serializations are set. Refer to the corresponding ML counterpart 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

367 
directly in that cases. 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

368 

27424  369 
* Integrated image HOLComplex with HOL. Entry points Main.thy and 
370 
Complex_Main.thy remain as they are. 

371 

27599  372 
* New image HOLPlain provides a minimal HOL with the most important 
373 
tools available (inductive, datatype, primrec, ...). By convention 

374 
the corresponding theory Plain should be ancestor of every further 

375 
(library) theory. Some library theories now have ancestor Plain 

376 
(instead of Main), thus theory Main occasionally has to be imported 

377 
explicitly. 

27421  378 

28248  379 
* The metis method now fails in the usual manner, rather than raising 
380 
an exception, if it determines that it cannot prove the theorem. 

28233
f14f34194f63
The metis method now fails in the usual manner, rather than raising an exception,
paulson
parents:
28227
diff
changeset

381 

28700
fb92b1d1b285
The metis method no longer fails because the theorem is too trivial
paulson
parents:
28685
diff
changeset

382 
* The metis method no longer fails because the theorem is too trivial 
fb92b1d1b285
The metis method no longer fails because the theorem is too trivial
paulson
parents:
28685
diff
changeset

383 
(contains the empty clause). 
fb92b1d1b285
The metis method no longer fails because the theorem is too trivial
paulson
parents:
28685
diff
changeset

384 

27324
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

385 
* Methods "case_tac" and "induct_tac" now refer to the very same rules 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

386 
as the structured Isar versions "cases" and "induct", cf. the 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

387 
corresponding "cases" and "induct" attributes. Mutual induction rules 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

388 
are now presented as a list of individual projections 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

389 
(e.g. foo_bar.inducts for types foo and bar); the old format with 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

390 
explicit HOL conjunction is no longer supported. INCOMPATIBILITY, in 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

391 
rare situations a different rule is selected  notably nested tuple 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

392 
elimination instead of former prod.exhaust: use explicit (case_tac t 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

393 
rule: prod.exhaust) here. 
27122  394 

27141
9bfcdb1905e1
* Attributes cases, induct, coinduct support del option.
wenzelm
parents:
27122
diff
changeset

395 
* Attributes "cases", "induct", "coinduct" support "del" option. 
9bfcdb1905e1
* Attributes cases, induct, coinduct support del option.
wenzelm
parents:
27122
diff
changeset

396 

27122  397 
* Removed fact "case_split_thm", which duplicates "case_split". 
398 

399 
* Command 'rep_datatype': instead of theorem names the command now 

400 
takes a list of terms denoting the constructors of the type to be 

401 
represented as datatype. The characteristic theorems have to be 

402 
proven. INCOMPATIBILITY. Also observe that the following theorems 

403 
have disappeared in favour of existing ones: 

404 

27104
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

405 
unit_induct ~> unit.induct 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

406 
prod_induct ~> prod.induct 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

407 
sum_induct ~> sum.induct 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

408 
Suc_Suc_eq ~> nat.inject 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

409 
Suc_not_Zero Zero_not_Suc ~> nat.distinct 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

410 

27122  411 
* Library/Nat_Infinity: added addition, numeral syntax and more 
412 
instantiations for algebraic structures. Removed some duplicate 

413 
theorems. Changes in simp rules. INCOMPATIBILITY. 

27104
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

414 

28088
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

415 
* ATP selection (E/Vampire/Spass) is now via Proof General's settings 
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

416 
menu. 
28067  417 

27104
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

418 

27696  419 
*** HOLAlgebra *** 
420 

27713
95b36bfe7fc4
New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents:
27704
diff
changeset

421 
* New locales for orders and lattices where the equivalence relation 
95b36bfe7fc4
New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents:
27704
diff
changeset

422 
is not restricted to equality. INCOMPATIBILITY: all order and 
95b36bfe7fc4
New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents:
27704
diff
changeset

423 
lattice locales use a record structure with field eq for the 
95b36bfe7fc4
New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents:
27704
diff
changeset

424 
equivalence. 
95b36bfe7fc4
New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents:
27704
diff
changeset

425 

95b36bfe7fc4
New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents:
27704
diff
changeset

426 
* New theory of factorial domains. 
95b36bfe7fc4
New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents:
27704
diff
changeset

427 

27696  428 
* Units_l_inv and Units_r_inv are now simprules by default. 
429 
INCOMPATIBILITY. Simplifier proof that require deletion of l_inv 

430 
and/or r_inv will now also require deletion of these lemmas. 

431 

432 
* Renamed the following theorems. INCOMPATIBILITY. 

433 
UpperD ~> Upper_memD 

434 
LowerD ~> Lower_memD 

435 
least_carrier ~> least_closed 

436 
greatest_carrier ~> greatest_closed 

437 
greatest_Lower_above ~> greatest_Lower_below 

27717
21bbd410ba04
Generalised polynomial lemmas from cring to ring.
ballarin
parents:
27713
diff
changeset

438 
one_zero ~> carrier_one_zero 
21bbd410ba04
Generalised polynomial lemmas from cring to ring.
ballarin
parents:
27713
diff
changeset

439 
one_not_zero ~> carrier_one_not_zero (collision with assumption) 
27696  440 

27793  441 

27485  442 
*** HOLNSA *** 
443 

444 
* Created new image HOLNSA, containing theories of nonstandard 

445 
analysis which were previously part of HOLComplex. Entry point 

446 
Hyperreal.thy remains valid, but theories formerly using 

447 
Complex_Main.thy should now use new entry point Hypercomplex.thy. 

448 

449 

27704  450 
*** ZF *** 
451 

452 
* Proof of Zorn's Lemma for partial orders. 

453 

454 

27246
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

455 
*** ML *** 
28088
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

456 

29161
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

457 
* Highlevel support for concurrent ML programming, see 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

458 
src/Pure/Cuncurrent. The dataoriented model of "future values" is 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

459 
particularly convenient to organize independent functional 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

460 
computations. The concept of "synchronized variables" provides a 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

461 
higherorder interface for components with shared state, avoiding the 
29162  462 
delicate details of mutexes and condition variables. [Poly/ML 5.2.1 
463 
or later] 

29161
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

464 

28294  465 
* Simplified ML oracle interface Thm.add_oracle promotes 'a > cterm 
466 
to 'a > thm, while results are always tagged with an authentic oracle 

467 
name. The Isar command 'oracle' is now polymorphic, no argument type 

468 
is specified. INCOMPATIBILITY, need to simplify existing oracle code 

469 
accordingly. Note that extra performance may be gained by producing 

470 
the cterm carefully, avoiding slow Thm.cterm_of. 

471 

28282
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

472 
* ML bindings produced via Isar commands are stored within the Isar 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

473 
context (theory or proof). Consequently, commands like 'use' and 'ML' 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

474 
become threadsafe and work with undo as expected (concerning 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

475 
toplevel bindings, not sideeffects on global references). 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

476 
INCOMPATIBILITY, need to provide proper Isar context when invoking the 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

477 
compiler at runtime; really global bindings need to be given outside a 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

478 
theory. [Poly/ML 5.2 or later] 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

479 

44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

480 
* Command 'ML_prf' is analogous to 'ML' but works within a proof 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

481 
context. Toplevel ML bindings are stored within the proof context in 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

482 
a purely sequential fashion, disregarding the nested proof structure. 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

483 
ML bindings introduced by 'ML_prf' are discarded at the end of the 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

484 
proof. [Poly/ML 5.2 or later] 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

485 

28099
fb16a07d6580
* Generic Toplevel.add_hook interface allows to analyze the result of
wenzelm
parents:
28089
diff
changeset

486 
* Generic Toplevel.add_hook interface allows to analyze the result of 
28103
b79e61861f0f
simplified Toplevel.add_hook: cover successful transactions only;
wenzelm
parents:
28099
diff
changeset

487 
transactions. E.g. see src/Pure/ProofGeneral/proof_general_pgip.ML 
b79e61861f0f
simplified Toplevel.add_hook: cover successful transactions only;
wenzelm
parents:
28099
diff
changeset

488 
for theorem dependency output of transactions resulting in a new 
b79e61861f0f
simplified Toplevel.add_hook: cover successful transactions only;
wenzelm
parents:
28099
diff
changeset

489 
theory state. 
28099
fb16a07d6580
* Generic Toplevel.add_hook interface allows to analyze the result of
wenzelm
parents:
28089
diff
changeset

490 

28088
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

491 
* Name bindings in higher specification mechanisms (notably 
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

492 
LocalTheory.define, LocalTheory.note, and derived packages) are now 
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

493 
formalized as type Name.binding, replacing old bstring. 
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

494 
INCOMPATIBILITY, need to wrap strings via Name.binding function, see 
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

495 
also Name.name_of. Packages should pass name bindings given by the 
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

496 
user to underlying specification mechanisms; this enables precise 
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

497 
tracking of source positions, for example. 
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

498 

28089
66ae1926482a
* Result facts now refer to the *full* internal name;
wenzelm
parents:
28088
diff
changeset

499 
* Result facts (from PureThy.note_thms, ProofContext.note_thms, 
66ae1926482a
* Result facts now refer to the *full* internal name;
wenzelm
parents:
28088
diff
changeset

500 
LocalTheory.note etc.) now refer to the *full* internal name, not the 
66ae1926482a
* Result facts now refer to the *full* internal name;
wenzelm
parents:
28088
diff
changeset

501 
bstring as before. INCOMPATIBILITY, not detected by ML typechecking! 
66ae1926482a
* Result facts now refer to the *full* internal name;
wenzelm
parents:
28088
diff
changeset

502 

27246
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

503 
* Rules and tactics that read instantiations (read_instantiate, 
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

504 
res_inst_tac, thin_tac, subgoal_tac etc.) now demand a proper proof 
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

505 
context, which is required for parsing and typechecking. Moreover, 
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

506 
the variables are specified as plain indexnames, not string encodings 
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

507 
thereof. INCOMPATIBILITY. 
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

508 

27287  509 
* Disposed old type and term read functions (Sign.read_def_typ, 
510 
Sign.read_typ, Sign.read_def_terms, Sign.read_term, 

511 
Thm.read_def_cterms, Thm.read_cterm etc.). INCOMPATIBILITY, should 

512 
use regular Syntax.read_typ, Syntax.read_term, Syntax.read_typ_global, 

27269  513 
Syntax.read_term_global etc.; see also OldGoals.read_term as last 
514 
resort for legacy applications. 

515 

27380  516 
* Antiquotations: blockstructured compilation context indicated by 
27391  517 
\<lbrace> ... \<rbrace>; additional antiquotation forms: 
518 

27519
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

519 
@{let ?pat = term}  term abbreviation (HO matching) 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

520 
@{note name = fact}  fact abbreviation 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

521 
@{thm fact}  singleton fact (with attributes) 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

522 
@{thms fact}  general fact (with attributes) 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

523 
@{lemma prop by method}  singleton goal 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

524 
@{lemma prop by meth1 meth2}  singleton goal 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

525 
@{lemma prop1 ... propN by method}  general goal 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

526 
@{lemma prop1 ... propN by meth1 meth2}  general goal 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

527 
@{lemma (open) ...}  open derivation 
27380  528 

27246
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

529 

27979  530 
*** System *** 
531 

28676
78688a5fafc2
multithreading support only for polyml5.2.1 or later;
wenzelm
parents:
28633
diff
changeset

532 
* Multithreading for Poly/ML 5.1/5.2 is no longer supported, only for 
78688a5fafc2
multithreading support only for polyml5.2.1 or later;
wenzelm
parents:
28633
diff
changeset

533 
Poly/ML 5.2.1 or later. 
28254
d67ba23e0277
multithreading for Poly/ML 5.1 is no longer supported;
wenzelm
parents:
28252
diff
changeset

534 

28248  535 
* The Isabelle "emacs" tool provides a specific interface to invoke 
536 
Proof General / Emacs, with more explicit failure if that is not 

537 
installed (the old isabelleinterface script silently falls back on 

538 
isabelleprocess). The PROOFGENERAL_HOME setting determines the 

539 
installation location of the Proof General distribution. 

540 

27979  541 
* Isabelle/lib/classes/Pure.jar provides basic support to integrate 
542 
the Isabelle process into a JVM/Scala application. See 

543 
Isabelle/lib/jedit/plugin for a minimal example. (The obsolete Java 

544 
process wrapper has been discontinued.) 

545 

546 
* Status messages (with exact source position information) are 

547 
emitted, if proper markup print mode is enabled. This allows 

548 
userinterface components to provide detailed feedback on internal 

549 
prover operations. 

550 

551 
* Homegrown Isabelle font with unicode layout, see Isabelle/lib/fonts. 

552 

553 

27143  554 

27008  555 
New in Isabelle2008 (June 2008) 
556 
 

25464
0ca80ce89001
moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents:
25459
diff
changeset

557 

25522  558 
*** General *** 
559 

27061  560 
* The Isabelle/Isar Reference Manual (isarref) has been reorganized 
561 
and updated, with formally checked references as hyperlinks. 

562 

25994  563 
* Theory loader: use_thy (and similar operations) no longer set the 
564 
implicit ML context, which was occasionally hard to predict and in 

565 
conflict with concurrency. INCOMPATIBILITY, use ML within Isar which 

566 
provides a proper context already. 

567 

26323
73efc70edeef
theory loader: discontinued *attached* ML scripts;
wenzelm
parents:
26315
diff
changeset

568 
* Theory loader: oldstyle ML proof scripts being *attached* to a thy 
73efc70edeef
theory loader: discontinued *attached* ML scripts;
wenzelm
parents:
26315
diff
changeset

569 
file are no longer supported. INCOMPATIBILITY, regular 'uses' and 
73efc70edeef
theory loader: discontinued *attached* ML scripts;
wenzelm
parents:
26315
diff
changeset

570 
'use' within a theory file will do the job. 
73efc70edeef
theory loader: discontinued *attached* ML scripts;
wenzelm
parents:
26315
diff
changeset

571 

26650  572 
* Name space merge now observes canonical order, i.e. the second space 
573 
is inserted into the first one, while existing entries in the first 

26659  574 
space take precedence. INCOMPATIBILITY in rare situations, may try to 
26650  575 
swap theory imports. 
576 

27067  577 
* Syntax: symbol \<chi> is now considered a letter. Potential 
578 
INCOMPATIBILITY in identifier syntax etc. 

579 

580 
* Outer syntax: string tokens no longer admit escaped white space, 

581 
which was an accidental (undocumented) feature. INCOMPATIBILITY, use 

582 
white space without escapes. 

583 

584 
* Outer syntax: string tokens may contain arbitrary character codes 

585 
specified via 3 decimal digits (as in SML). E.g. "foo\095bar" for 

586 
"foo_bar". 

587 

25522  588 

25502  589 
*** Pure *** 
590 

26718  591 
* Contextdependent token translations. Default setup reverts locally 
592 
fixed variables, and adds hilite markup for undeclared frees. 

593 

26681  594 
* Unused theorems can be found using the new command 'unused_thms'. 
595 
There are three ways of invoking it: 

596 

597 
(1) unused_thms 

598 
Only finds unused theorems in the current theory. 

599 

600 
(2) unused_thms thy_1 ... thy_n  

601 
Finds unused theorems in the current theory and all of its ancestors, 

602 
excluding the theories thy_1 ... thy_n and all of their ancestors. 

603 

604 
(3) unused_thms thy_1 ... thy_n  thy'_1 ... thy'_m 

605 
Finds unused theorems in the theories thy'_1 ... thy'_m and all of 

606 
their ancestors, excluding the theories thy_1 ... thy_n and all of 

607 
their ancestors. 

608 

26718  609 
In order to increase the readability of the list produced by 
610 
unused_thms, theorems that have been created by a particular instance 

26874  611 
of a theory command such as 'inductive' or 'function' are considered 
612 
to belong to the same "group", meaning that if at least one theorem in 

26718  613 
this group is used, the other theorems in the same group are no longer 
614 
reported as unused. Moreover, if all theorems in the group are 

615 
unused, only one theorem in the group is displayed. 

616 

617 
Note that proof objects have to be switched on in order for 

618 
unused_thms to work properly (i.e. !proofs must be >= 1, which is 

26874  619 
usually the case when using Proof General with the default settings). 
26681  620 

26650  621 
* Authentic naming of facts disallows adhoc overwriting of previous 
622 
theorems within the same name space. INCOMPATIBILITY, need to remove 

623 
duplicate fact bindings, or even accidental fact duplications. Note 

624 
that tools may maintain dynamically scoped facts systematically, using 

625 
PureThy.add_thms_dynamic. 

626 

26660  627 
* Command 'hide' now allows to hide from "fact" name space as well. 
628 

26496
49ae9456eba9
purely functional setup of claset/simpset/clasimpset;
wenzelm
parents:
26495
diff
changeset

629 
* Eliminated destructive theorem database, simpset, claset, and 
49ae9456eba9
purely functional setup of claset/simpset/clasimpset;
wenzelm
parents:
26495
diff
changeset

630 
clasimpset. Potential INCOMPATIBILITY, really need to observe linear 
49ae9456eba9
purely functional setup of claset/simpset/clasimpset;
wenzelm
parents:
26495
diff
changeset

631 
update of theories within ML code. 
26479  632 

26955
ebbaa935eae0
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents:
26925
diff
changeset

633 
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory. 
ebbaa935eae0
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents:
26925
diff
changeset

634 
INCOMPATIBILITY, objectlogics depending on former Pure require 
ebbaa935eae0
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents:
26925
diff
changeset

635 
additional setup PureThy.old_appl_syntax_setup; objectlogics 
ebbaa935eae0
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents:
26925
diff
changeset

636 
depending on former CPure need to refer to Pure. 
26650  637 

26495  638 
* Commands 'use' and 'ML' are now purely functional, operating on 
26479  639 
theory/local_theory. Removed former 'ML_setup' (on theory), use 'ML' 
640 
instead. Added 'ML_val' as mere diagnostic replacement for 'ML'. 

641 
INCOMPATIBILITY. 

642 

26874  643 
* Command 'setup': discontinued implicit version with ML reference. 
26434  644 

25970
9053fd546501
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents:
25961
diff
changeset

645 
* Instantiation target allows for simultaneous specification of class 
9053fd546501
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents:
25961
diff
changeset

646 
instance operations together with an instantiation proof. 
9053fd546501
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents:
25961
diff
changeset

647 
Typechecking phase allows to refer to class operations uniformly. 
27067  648 
See src/HOL/Complex/Complex.thy for an Isar example and 
649 
src/HOL/Library/Eval.thy for an ML example. 

25502  650 

26201
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

651 
* Indexing of literal facts: be more serious about including only 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

652 
facts from the visible specification/proof context, but not the 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

653 
background context (locale etc.). Affects `prop` notation and method 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

654 
"fact". INCOMPATIBILITY: need to name facts explicitly in rare 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

655 
situations. 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

656 

26925
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

657 
* Method "cases", "induct", "coinduct": removed obsolete/undocumented 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

658 
"(open)" option, which used to expose internal bound variables to the 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

659 
proof text. 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

660 

ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

661 
* Isar statements: removed obsolete case "rule_context". 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

662 
INCOMPATIBILITY, better use explicit fixes/assumes. 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

663 

26874  664 
* Locale proofs: default proof step now includes 'unfold_locales'; 
665 
hence 'proof' without argument may be used to unfold locale 

666 
predicates. 

26765  667 

668 

26762  669 
*** Document preparation *** 
670 

26914  671 
* Simplified pdfsetup.sty: color/hyperref is used unconditionally for 
672 
both pdf and dvi (hyperlinks usually work in xdvi as well); removed 

673 
obsolete thumbpdf setup (contemporary PDF viewers do this on the 

674 
spot); renamed link color from "darkblue" to "linkcolor" (default 

26920  675 
value unchanged, can be redefined via \definecolor); no longer sets 
676 
"a4paper" option (unnecessary or even intrusive). 

26914  677 

27008  678 
* Antiquotation @{lemma A method} proves proposition A by the given 
679 
method (either a method name or a method name plus (optional) method 

680 
arguments in parentheses) and prints A just like @{prop A}. 

26762  681 

682 

25464
0ca80ce89001
moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents:
25459
diff
changeset

683 
*** HOL *** 
0ca80ce89001
moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents:
25459
diff
changeset

684 

27067  685 
* New primrec package. Specification syntax conforms in style to 
686 
definition/function/.... No separate induction rule is provided. The 

687 
"primrec" command distinguishes oldstyle and newstyle specifications 

688 
by syntax. The former primrec package is now named OldPrimrecPackage. 

689 
When adjusting theories, beware: constants stemming from newstyle 

690 
primrec specifications have authentic syntax. 

691 

692 
* Metis prover is now an order of magnitude faster, and also works 

693 
with multithreading. 

694 

695 
* Metis: the maximum number of clauses that can be produced from a 

696 
theorem is now given by the attribute max_clauses. Theorems that 

697 
exceed this number are ignored, with a warning printed. 

698 

699 
* Sledgehammer no longer produces structured proofs by default. To 

700 
enable, declare [[sledgehammer_full = true]]. Attributes 

701 
reconstruction_modulus, reconstruction_sorts renamed 

702 
sledgehammer_modulus, sledgehammer_sorts. INCOMPATIBILITY. 

703 

27104
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

704 
* Method "induct_scheme" derives userspecified induction rules 
27067  705 
from wellfounded induction and completeness of patterns. This factors 
706 
out some operations that are done internally by the function package 

707 
and makes them available separately. See 

708 
src/HOL/ex/Induction_Scheme.thy for examples. 

709 

710 
* More flexible generation of measure functions for termination 

711 
proofs: Measure functions can be declared by proving a rule of the 

712 
form "is_measure f" and giving it the [measure_function] attribute. 

713 
The "is_measure" predicate is logically meaningless (always true), and 

714 
just guides the heuristic. To find suitable measure functions, the 

715 
termination prover sets up the goal "is_measure ?f" of the appropriate 

716 
type and generates all solutions by prologstyle backwards proof using 

717 
the declared rules. 

718 

719 
This setup also deals with rules like 

720 

721 
"is_measure f ==> is_measure (list_size f)" 

722 

723 
which accommodates nested datatypes that recurse through lists. 

724 
Similar rules are predeclared for products and option types. 

725 

26964
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

726 
* Turned the type of sets "'a set" into an abbreviation for "'a => bool" 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

727 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

728 
INCOMPATIBILITIES: 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

729 

27008  730 
 Definitions of overloaded constants on sets have to be replaced by 
731 
definitions on => and bool. 

26964
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

732 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

733 
 Some definitions of overloaded operators on sets can now be proved 
27008  734 
using the definitions of the operators on => and bool. Therefore, 
735 
the following theorems have been renamed: 

26964
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

736 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

737 
subset_def > subset_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

738 
psubset_def > psubset_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

739 
set_diff_def > set_diff_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

740 
Compl_def > Compl_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

741 
Sup_set_def > Sup_set_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

742 
Inf_set_def > Inf_set_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

743 
sup_set_def > sup_set_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

744 
inf_set_def > inf_set_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

745 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

746 
 Due to the incompleteness of the HO unification algorithm, some 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

747 
rules such as subst may require manual instantiation, if some of 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

748 
the unknowns in the rule is a set. 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

749 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

750 
 Higher order unification and forward proofs: 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

751 
The proof pattern 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

752 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

753 
have "P (S::'a set)" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

754 
then have "EX S. P S" .. 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

755 

27008  756 
no longer works (due to the incompleteness of the HO unification 
757 
algorithm) and must be replaced by the pattern 

26964
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

758 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

759 
have "EX S. P S" 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

760 
proof 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

761 
show "P S" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

762 
qed 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

763 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

764 
 Calculational reasoning with subst (or similar rules): 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

765 
The proof pattern 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

766 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

767 
have "P (S::'a set)" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

768 
also have "S = T" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

769 
finally have "P T" . 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

770 

27008  771 
no longer works (for similar reasons as the previous example) and 
772 
must be replaced by something like 

26964
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

773 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

774 
have "P (S::'a set)" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

775 
moreover have "S = T" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

776 
ultimately have "P T" by simp 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

777 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

778 
 Tactics or packages written in ML code: 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

779 
Code performing pattern matching on types via 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

780 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

781 
Type ("set", [T]) => ... 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

782 

27008  783 
must be rewritten. Moreover, functions like strip_type or 
784 
binder_types no longer return the right value when applied to a 

785 
type of the form 

26964
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

786 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

787 
T1 => ... => Tn => U => bool 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

788 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

789 
rather than 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

790 

df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

791 
T1 => ... => Tn => U set 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

792 

26874  793 
* Merged theories Wellfounded_Recursion, Accessible_Part and 
27067  794 
Wellfounded_Relations to theory Wellfounded. 
26748
4d51ddd6aa5c
Merged theories about wellfoundedness into one: Wellfounded.thy
krauss
parents:
26724
diff
changeset

795 

26513  796 
* Explicit class "eq" for executable equality. INCOMPATIBILITY. 
797 

26874  798 
* Class finite no longer treats UNIV as class parameter. Use class 
799 
enum from theory Library/Enum instead to achieve a similar effect. 

26445  800 
INCOMPATIBILITY. 
801 

26874  802 
* Theory List: rule list_induct2 now has explicitly named cases "Nil" 
803 
and "Cons". INCOMPATIBILITY. 

804 

26422
d5883907c514
HOL (and FOL): renamed variables in rules imp_elim and swap;
wenzelm
parents:
26401
diff
changeset

805 
* HOL (and FOL): renamed variables in rules imp_elim and swap. 
d5883907c514
HOL (and FOL): renamed variables in rules imp_elim and swap;
wenzelm
parents:
26401
diff
changeset

806 
Potential INCOMPATIBILITY. 
d5883907c514
HOL (and FOL): renamed variables in rules imp_elim and swap;
wenzelm
parents:
26401
diff
changeset

807 

26874  808 
* Theory Product_Type: duplicated lemmas split_Pair_apply and 
809 
injective_fst_snd removed, use split_eta and prod_eqI instead. 

810 
Renamed upd_fst to apfst and upd_snd to apsnd. INCOMPATIBILITY. 

26355  811 

26335
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

812 
* Theory Nat: removed redundant lemmas that merely duplicate lemmas of 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

813 
the same name in theory Orderings: 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

814 

961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

815 
less_trans 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

816 
less_linear 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

817 
le_imp_less_or_eq 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

818 
le_less_trans 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

819 
less_le_trans 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

820 
less_not_sym 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

821 
less_asym 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

822 

961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

823 
Renamed less_imp_le to less_imp_le_nat, and less_irrefl to 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

824 
less_irrefl_nat. Potential INCOMPATIBILITY due to more general types 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

825 
and different variable names. 
26315
cb3badaa192e
removed redundant less_trans, less_linear, le_imp_less_or_eq, le_less_trans, less_le_trans (cf. Orderings.thy);
wenzelm
parents:
26231
diff
changeset

826 

26231  827 
* Library/Option_ord.thy: Canonical order on option type. 
828 

27008  829 
* Library/RBT.thy: Redblack trees, an efficient implementation of 
830 
finite maps. 

26197  831 

26231  832 
* Library/Countable.thy: Type class for countable types. 
833 

26180
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

834 
* Theory Int: The representation of numerals has changed. The infix 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

835 
operator BIT and the bit datatype with constructors B0 and B1 have 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

836 
disappeared. INCOMPATIBILITY, use "Int.Bit0 x" and "Int.Bit1 y" in 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

837 
place of "x BIT bit.B0" and "y BIT bit.B1", respectively. Theorems 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

838 
involving BIT, B0, or B1 have been renamed with "Bit0" or "Bit1" 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

839 
accordingly. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

840 

cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

841 
* Theory Nat: definition of <= and < on natural numbers no longer 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

842 
depend on wellfounded relations. INCOMPATIBILITY. Definitions 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

843 
le_def and less_def have disappeared. Consider lemmas not_less 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

844 
[symmetric, where ?'a = nat] and less_eq [symmetric] instead. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

845 

cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

846 
* Theory Finite_Set: locales ACf, ACe, ACIf, ACIfSL and ACIfSLlin 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

847 
(whose purpose mainly is for various fold_set functionals) have been 
26874  848 
abandoned in favor of the existing algebraic classes 
26180
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

849 
ab_semigroup_mult, comm_monoid_mult, ab_semigroup_idem_mult, 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

850 
lower_semilattice (resp. upper_semilattice) and linorder. 
26139  851 
INCOMPATIBILITY. 
26041
c2e15e65165f
locales ACf, ACIf, ACIfSL and ACIfSLlin have been abandoned in favour of the existing algebraic classes ab_semigroup_mult, ab_semigroup_idem_mult, lower_semilattice (resp. uper_semilattice) and linorder
haftmann
parents:
26013
diff
changeset

852 

26180
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

853 
* Theory Transitive_Closure: induct and cases rules now declare proper 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

854 
case_names ("base" and "step"). INCOMPATIBILITY. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

855 

cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

856 
* Theorem Inductive.lfp_ordinal_induct generalized to complete 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

857 
lattices. The form setspecific version is available as 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

858 
Inductive.lfp_ordinal_induct_set. 
26013
8764a1f1253b
Theorem Inductive.lfp_ordinal_induct generalized to complete lattices
haftmann
parents:
26006
diff
changeset

859 

26874  860 
* Renamed theorems "power.simps" to "power_int.simps". 
27067  861 
INCOMPATIBILITY. 
25961  862 

26180
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

863 
* Class semiring_div provides basic abstract properties of semirings 
25942  864 
with division and modulo operations. Subsumes former class dvd_mod. 
865 

26180
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

866 
* Merged theories IntDef, Numeral and IntArith into unified theory 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

867 
Int. INCOMPATIBILITY. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

868 

cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

869 
* Theory Library/Code_Index: type "index" now represents natural 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

870 
numbers rather than integers. INCOMPATIBILITY. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

871 

cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

872 
* New class "uminus" with operation "uminus" (split of from class 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

873 
"minus" which now only has operation "minus", binary). 
25919
8b1c0d434824
joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents:
25900
diff
changeset

874 
INCOMPATIBILITY. 
8b1c0d434824
joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents:
25900
diff
changeset

875 

25522  876 
* Constants "card", "internal_split", "option_map" now with authentic 
25919
8b1c0d434824
joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents:
25900
diff
changeset

877 
syntax. INCOMPATIBILITY. 
25522  878 

879 
* Definitions subset_def, psubset_def, set_diff_def, Compl_def, 

880 
le_bool_def, less_bool_def, le_fun_def, less_fun_def, inf_bool_def, 

881 
sup_bool_def, Inf_bool_def, Sup_bool_def, inf_fun_def, sup_fun_def, 

882 
Inf_fun_def, Sup_fun_def, inf_set_def, sup_set_def, Inf_set_def, 

883 
Sup_set_def, le_def, less_def, option_map_def now with object 

25919
8b1c0d434824
joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents:
25900
diff
changeset

884 
equality. INCOMPATIBILITY. 
25464
0ca80ce89001
moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents:
25459
diff
changeset

885 

25705  886 
* Records. Removed K_record, and replaced it by pure lambda term 
25726
9728f319ffc6
* Metis prover an order of magnitude faster, works with multithreading.
wenzelm
parents:
25712
diff
changeset

887 
%x. c. The simplifier setup is now more robust against eta expansion. 
25705  888 
INCOMPATIBILITY: in cases explicitly referring to K_record. 
25464
0ca80ce89001
moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents:
25459
diff
changeset

889 

27067  890 
* Library/Multiset: {#a, b, c#} abbreviates {#a#} + {#b#} + {#c#}. 
891 

892 
* Library/ListVector: new theory of arithmetic vector operations. 

893 

894 
* Library/Order_Relation: new theory of various orderings as sets of 

895 
pairs. Defines preorders, partial orders, linear orders and 

896 
wellorders on sets and on types. 

26877  897 

25726
9728f319ffc6
* Metis prover an order of magnitude faster, works with multithreading.
wenzelm
parents:
25712
diff
changeset

898 

26197  899 
*** ZF *** 
900 

26874  901 
* Renamed some theories to allow to loading both ZF and HOL in the 
902 
same session: 

903 

904 
Datatype > Datatype_ZF 

905 
Inductive > Inductive_ZF 

906 
Int > Int_ZF 

907 
IntDiv > IntDiv_ZF 

908 
Nat > Nat_ZF 

909 
List > List_ZF 

910 
Main > Main_ZF 

911 

912 
INCOMPATIBILITY: ZF theories that import individual theories below 

913 
Main might need to be adapted. Regular theory Main is still 

914 
available, as trivial extension of Main_ZF. 

26197  915 

916 

25737
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

917 
*** ML *** 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

918 

27067  919 
* ML within Isar: antiquotation @{const name} or @{const 
920 
name(typargs)} produces staticallychecked Const term. 

921 

26401
e7a94081dce7
Functor NamedThmsFun: data is available to the user as dynamic fact;
wenzelm
parents:
26387
diff
changeset

922 
* Functor NamedThmsFun: data is available to the user as dynamic fact 
26724
ff6ff3a9010e
NamedThmsFun: removed obsolete print command  facts are accesible via dynamic name;
wenzelm
parents:
26718
diff
changeset

923 
(of the same name). Removed obsolete print command. 
26401
e7a94081dce7
Functor NamedThmsFun: data is available to the user as dynamic fact;
wenzelm
parents:
26387
diff
changeset

924 

27067  925 
* Removed obsolete "use_legacy_bindings" function. 
26188  926 

25737
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

927 
* The ``print mode'' is now a threadlocal value derived from a global 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

928 
template (the former print_mode reference), thus access becomes 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

929 
noncritical. The global print_mode reference is for session 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

930 
management only; usercode should use print_mode_value, 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

931 
print_mode_active, PrintMode.setmp etc. INCOMPATIBILITY. 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

932 

26874  933 
* Functions system/system_out provide a robust way to invoke external 
29161
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

934 
shell commands, with propagation of interrupts (requires Poly/ML 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

935 
5.2.1). Do not use OS.Process.system etc. from the basis library! 
26222
edf6473ac9e9
* system/system_out provides a robust way to invoke external shell
wenzelm
parents:
26218
diff
changeset

936 

25737
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

937 

25626
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

938 
*** System *** 
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

939 

25971  940 
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs  
941 
in accordance with Proof General 3.7, which prefers GNU emacs. 

25970
9053fd546501
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents:
25961
diff
changeset

942 

25626
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

943 
* isatool tty runs Isabelle process with plain tty interaction; 
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

944 
optional line editor may be specified via ISABELLE_LINE_EDITOR 
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

945 
setting, the default settings attempt to locate "ledit" and "rlwrap". 
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

946 

25651  947 
* isatool browser now works with Cygwin as well, using general 
948 
"javapath" function defined in Isabelle process environment. 

949 

27067  950 
* YXML notation provides a simple and efficient alternative to 
951 
standard XML transfer syntax. See src/Pure/General/yxml.ML and 

952 
isatool yxml as described in the Isabelle system manual. 

25651  953 

25652  954 
* JVM class isabelle.IsabelleProcess (located in Isabelle/lib/classes) 
25651  955 
provides general wrapper for managing an Isabelle process in a robust 
956 
fashion, with ``cooked'' output from stdin/stderr. 

957 

25855  958 
* Rudimentary Isabelle plugin for jEdit (see Isabelle/lib/jedit), 
959 
based on Isabelle/JVM process wrapper (see Isabelle/lib/classes). 

960 

27067  961 
* Removed obsolete THIS_IS_ISABELLE_BUILD feature. NB: the documented 
962 
way of changing the user's settings is via 

963 
ISABELLE_HOME_USER/etc/settings, which is a fully featured bash 

964 
script. 

965 

966 
* Multithreading.max_threads := 0 refers to the number of actual CPU 

967 
cores of the underlying machine, which is a good starting point for 

968 
optimal performance tuning. The corresponding usedir option M allows 

969 
"max" as an alias for "0". WARNING: does not work on certain versions 

970 
of Mac OS (with Poly/ML 5.1). 

971 

972 
* isabelleprocess: nonML sessions are run with "nice", to reduce the 

973 
adverse effect of Isabelle flooding interactive frontends (notably 

974 
ProofGeneral / XEmacs). 

975 

25626
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

976 

25464
0ca80ce89001
moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents:
25459
diff
changeset

977 

25429  978 
New in Isabelle2007 (November 2007) 
979 
 

17754
58a306d9f736
* Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents:
17725
diff
changeset

980 

58a306d9f736
* Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents:
17725
diff
changeset

981 
*** General *** 
58a306d9f736
* Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents:
17725
diff
changeset

982 

22826  983 
* More uniform information about legacy features, notably a 
984 
warning/error of "Legacy feature: ...", depending on the state of the 

23367  985 
tolerate_legacy_features flag (default true). FUTURE INCOMPATIBILITY: 
986 
legacy features will disappear eventually. 

22826  987 

17918
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

988 
* Theory syntax: the header format ``theory A = B + C:'' has been 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

989 
discontinued in favour of ``theory A imports B C begin''. Use isatool 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

990 
fixheaders to convert existing theory files. INCOMPATIBILITY. 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

991 

93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

992 
* Theory syntax: the old nonIsar theory file format has been 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

993 
discontinued altogether. Note that ML proof scripts may still be used 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

994 
with Isar theories; migration is usually quite simple with the ML 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

995 
function use_legacy_bindings. INCOMPATIBILITY. 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

996 

22871  997 
* Theory syntax: some popular names (e.g. 'class', 'declaration', 
998 
'fun', 'help', 'if') are now keywords. INCOMPATIBILITY, use double 

999 
quotes. 

19814
faa698d46686
* Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents:
19783
diff
changeset

1000 

23888
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1001 
* Theory loader: be more serious about observing the static theory 
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1002 
header specifications (including optional directories), but not the 
24172
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1003 
accidental file locations of previously successful loads. The strict 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1004 
update policy of former update_thy is now already performed by 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1005 
use_thy, so the former has been removed; use_thys updates several 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1006 
theories simultaneously, just as 'imports' within a theory header 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1007 
specification, but without merging the results. Potential 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1008 
INCOMPATIBILITY: may need to refine theory headers and commands 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1009 
ROOT.ML which depend on load order. 
23888
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1010 

babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1011 
* Theory loader: optional support for contentbased file 
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1012 
identification, instead of the traditional scheme of full physical 
23889  1013 
path plus date stamp; configured by the ISABELLE_FILE_IDENT setting 
23888
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1014 
(cf. the system manual). The new scheme allows to work with 
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1015 
nonfinished theories in persistent session images, such that source 
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1016 
files may be moved later on without requiring reloads. 
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1017 

24187
8bdf5ca5871f
* Theory loader: oldstyle ML proof scripts are considered a legacy feature;
wenzelm
parents:
24172
diff
changeset

1018 
* Theory loader: oldstyle ML proof scripts being *attached* to a thy 
8bdf5ca5871f
* Theory loader: oldstyle ML proof scripts are considered a legacy feature;
wenzelm
parents:
24172
diff
changeset

1019 
file (with the same base name as the theory) are considered a legacy 
24800  1020 
feature, which will disappear eventually. Even now, the theory loader 
1021 
no longer maintains dependencies on such files. 

1022 

1023 
* Syntax: the scope for resolving ambiguities via typeinference is 

1024 
now limited to individual terms, instead of whole simultaneous 

24234
4714e04fb8e9
* Syntax: scope for resolving ambiguities via typeinference is now limited to individual terms;
wenzelm
parents:
24213
diff
changeset

1025 
specifications as before. This greatly reduces the complexity of the 
4714e04fb8e9
* Syntax: scope for resolving ambiguities via typeinference is now limited to individual terms;
wenzelm
parents:
24213
diff
changeset

1026 
syntax module and improves flexibility by separating parsing and 
4714e04fb8e9
* Syntax: scope for resolving ambiguities via typeinference is now limited to individual terms;
wenzelm
parents:
24213
diff
changeset

1027 
typechecking. INCOMPATIBILITY: additional typeconstraints (explicit 
4714e04fb8e9
* Syntax: scope for resolving ambiguities via typeinference is now limited to individual terms;
wenzelm
parents:
24213
diff
changeset

1028 
'fixes' etc.) are required in rare situations. 
4714e04fb8e9
* Syntax: scope for resolving ambiguities via typeinference is now limited to individual terms;
wenzelm
parents:
24213
diff
changeset

1029 

25034  1030 
* Syntax: constants introduced by newstyle packages ('definition', 
1031 
'abbreviation' etc.) are passed through the syntax module in 

1032 
``authentic mode''. This means that associated mixfix annotations 

1033 
really stick to such constants, independently of potential name space 

1034 
ambiguities introduced later on. INCOMPATIBILITY: constants in parse 

1035 
trees are represented slightly differently, may need to adapt syntax 

1036 
translations accordingly. Use CONST marker in 'translations' and 

1037 
@{const_syntax} antiquotation in 'parse_translation' etc. 

1038 

17981
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1039 
* Legacy goal package: reduced interface to the bare minimum required 
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1040 
to keep existing proof scripts running. Most other userlevel 
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1041 
functions are now part of the OldGoals structure, which is *not* open 
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1042 
by default (consider isatool expandshort before open OldGoals). 
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1043 
Removed top_sg, prin, printyp, pprint_term/typ altogether, because 
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1044 
these tend to cause confusion about the actual goal (!) context being 
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1045 
used here, which is not necessarily the same as the_context(). 
17918
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

1046 

23379
d0e3f790bd73
updated 'find_theorems'  moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents:
23377
diff
changeset

1047 
* Command 'find_theorems': supports "*" wildcard in "name:" 
d0e3f790bd73
updated 'find_theorems'  moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents:
23377
diff
changeset

1048 
criterion; "with_dups" option. Certain ProofGeneral versions might 
d0e3f790bd73
updated 'find_theorems'  moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents:
23377
diff
changeset

1049 
support a specific search form (see ProofGeneral/CHANGES). 
22965  1050 

20370  1051 
* The ``prems limit'' option (cf. ProofContext.prems_limit) is now 1 
1052 
by default, which means that "prems" (and also "fixed variables") are 

1053 
suppressed from proof state output. Note that the ProofGeneral 

1054 
settings mechanism allows to change and save options persistently, but 

1055 
older versions of Isabelle will fail to start up if a negative prems 

1056 
limit is imposed. 

1057 

21308
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1058 
* Local theory targets may be specified by nonnested blocks of 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1059 
``context/locale/class ... begin'' followed by ``end''. The body may 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1060 
contain definitions, theorems etc., including any derived mechanism 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1061 
that has been implemented on top of these primitives. This concept 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1062 
generalizes the existing ``theorem (in ...)'' towards more versatility 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1063 
and scalability. 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1064 

21960
0574f192b78a
* Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
wenzelm
parents:
21896
diff
changeset

1065 
* Proof General interface: proper undo of final 'end' command; 
0574f192b78a
* Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
wenzelm
parents:
21896
diff
changeset

1066 
discontinued Isabelle/classic mode (ML proof scripts). 
0574f192b78a
* Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
wenzelm
parents:
21896
diff
changeset

1067 

17754
58a306d9f736
* Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents:
17725
diff
changeset

1068 

17865  1069 
*** Document preparation *** 
1070 

21717  1071 
* Added antiquotation @{theory name} which prints the given name, 
1072 
after checking that it refers to a valid ancestor theory in the 

1073 
current context. 

21339  1074 

17869  1075 
* Added antiquotations @{ML_type text} and @{ML_struct text} which 
1076 
check the given source text as ML type/structure, printing verbatim. 

17865  1077 

21717  1078 
* Added antiquotation @{abbrev "c args"} which prints the abbreviation 
1079 
"c args == rhs" given in the current context. (Any number of 

21735  1080 
arguments may be given on the LHS.) 
21717  1081 

1082 

17779  1083 
*** Pure *** 
1084 

24800  1085 
* The 'class' package offers a combination of axclass and locale to 
25129  1086 
achieve Haskelllike type classes in Isabelle. Definitions and 
1087 
theorems within a class context produce both relative results (with 

1088 
implicit parameters according to the locale context), and polymorphic 

1089 
constants with qualified polymorphism (according to the class 

1090 
context). Within the body context of a 'class' target, a separate 

1091 
syntax layer ("user space type system") takes care of converting 

1092 
between global polymorphic consts and internal locale representation. 

25177  1093 
See src/HOL/ex/Classpackage.thy for examples (as well as main HOL). 
25184  1094 
"isatool doc classes" provides a tutorial. 
20807  1095 

25199  1096 
* Generic code generator framework allows to generate executable 
24800  1097 
code for ML and Haskell (including Isabelle classes). A short usage 
1098 
sketch: 

20188
8b22026445af
added notes on class_package.ML and codegen_package.ML
haftmann
parents:
20169
diff
changeset

1099 

8b22026445af
added notes on class_package.ML and codegen_package.ML
haftmann
parents:
20169
diff
changeset

1100 
internal compilation: 
25199  1101 
export_code <list of constants (term syntax)> in SML 
20453
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1102 
writing SML code to a file: 
25199  1103 
export_code <list of constants (term syntax)> in SML <filename> 
22735  1104 
writing OCaml code to a file: 
25199  1105 
export_code <list of constants (term syntax)> in OCaml <filename> 
20188
8b22026445af
added notes on class_package.ML and codegen_package.ML
haftmann
parents:
20169
diff
changeset

1106 
writing Haskell code to a bunch of files: 
25199  1107 
export_code <list of constants (term syntax)> in Haskell <filename> 
1108 

1109 
evaluating closed propositions to True/False using code generation: 

25184  1110 
method ``eval'' 
1111 

1112 
Reasonable default setup of framework in HOL. 

20453
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1113 

855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1114 
Theorem attributs for selecting and transforming function equations theorems: 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1115 

22845  1116 
[code fun]: select a theorem as function equation for a specific constant 
1117 
[code fun del]: deselect a theorem as function equation for a specific constant 

1118 
[code inline]: select an equation theorem for unfolding (inlining) in place 

1119 
[code inline del]: deselect an equation theorem for unfolding (inlining) in place 

20453
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1120 

22735  1121 
Userdefined serializations (target in {SML, OCaml, Haskell}): 
20453
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1122 

855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1123 
code_const <andlist of constants (term syntax)> 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1124 
{(target) <andlist of const target syntax>}+ 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1125 

855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1126 
code_type <andlist of type constructors> 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1127 
{(target) <andlist of type target syntax>}+ 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1128 

855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1129 
code_instance <andlist of instances> 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1130 
{(target)}+ 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1131 
where instance ::= <type constructor> :: <class> 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1132 

855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1133 
code_class <and_list of classes> 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1134 
{(target) <andlist of class target syntax>}+ 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1135 
where class target syntax ::= <class name> {where {<classop> == <target syntax>}+}? 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1136 

25199  1137 
code_instance and code_class only are effective to target Haskell. 
22735  1138 

25177  1139 
For example usage see src/HOL/ex/Codegenerator.thy and 
1140 
src/HOL/ex/Codegenerator_Pretty.thy. A separate tutorial on code 

24800  1141 
generation from Isabelle/HOL theories is available via "isatool doc 
1142 
codegen". 

20188
8b22026445af
added notes on class_package.ML and codegen_package.ML
haftmann
parents:
20169
diff
changeset

1143 

25129  1144 
* Code generator: consts in 'consts_code' Isar commands are now 
1145 
referred to by usual term syntax (including optional type 

1146 
annotations). 

1147 

19254  1148 
* Command 'no_translations' removes translation rules from theory 
1149 
syntax. 

1150 

19625
285771cec083
* Pure: overloaded definitions are now actually checked for acyclic dependencies;
wenzelm
parents:
19587
diff
changeset

1151 
* Overloaded definitions are now actually checked for acyclic 
19714  1152 
dependencies. The overloading scheme is slightly more general than 
1153 
that of Haskell98, although Isabelle does not demand an exact 

1154 
correspondence to type class and instance declarations. 

1155 
INCOMPATIBILITY, use ``defs (unchecked overloaded)'' to admit more 

1156 
exotic versions of overloading  at the discretion of the user! 

19711  1157 

1158 
Polymorphic constants are represented via type arguments, i.e. the 

1159 
instantiation that matches an instance against the most general 

1160 
declaration given in the signature. For example, with the declaration 

1161 
c :: 'a => 'a => 'a, an instance c :: nat => nat => nat is represented 

1162 
as c(nat). Overloading is essentially simultaneous structural 

1163 
recursion over such type arguments. Incomplete specification patterns 

19714  1164 
impose global constraints on all occurrences, e.g. c('a * 'a) on the 
19715  1165 
LHS means that more general c('a * 'b) will be disallowed on any RHS. 
19714  1166 
Command 'print_theory' outputs the normalized system of recursive 
1167 
equations, see section "definitions". 

19625
285771cec083
* Pure: overloaded definitions are now actually checked for acyclic dependencies;
wenzelm
parents:
19587
diff
changeset

1168 

24086  1169 
* Configuration options are maintained within the theory or proof 
1170 
context (with name and type bool/int/string), providing a very simple 

1171 
interface to a poorman's version of general context data. Tools may 

24110
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1172 
declare options in ML (e.g. using Attrib.config_int) and then refer to 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1173 
these values using Config.get etc. Users may change options via an 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1174 
associated attribute of the same name. This form of context 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1175 
declaration works particularly well with commands 'declare' or 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1176 
'using', for example ``declare [[foo = 42]]''. Thus it has become 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1177 
very easy to avoid global references, which would not observe Isar 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1178 
toplevel undo/redo and fail to work with multithreading. 
24086  1179 

24172
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1180 
Various global ML references of Pure and HOL have been turned into 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1181 
configuration options: 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1182 

06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1183 
Unify.search_bound unify_search_bound 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1184 
Unify.trace_bound unify_trace_bound 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1185 
Unify.trace_simp unify_trace_simp 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1186 
Unify.trace_types unify_trace_types 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1187 
Simplifier.simp_depth_limit simp_depth_limit 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1188 
Blast.depth_limit blast_depth_limit 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1189 
DatatypeProp.dtK datatype_distinctness_limit 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1190 
fast_arith_neq_limit fast_arith_neq_limit 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1191 
fast_arith_split_limit fast_arith_split_limit 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1192 

24086  1193 
* Named collections of theorems may be easily installed as context 
24800  1194 
data using the functor NamedThmsFun (see also 
24086  1195 
src/Pure/Tools/named_thms.ML). The user may add or delete facts via 
24110
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1196 
attributes; there is also a toplevel print command. This facility is 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1197 
just a common case of general context data, which is the preferred way 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1198 
for anything more complex than just a list of facts in canonical 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1199 
order. 
24086  1200 

24032  1201 
* Isar: command 'declaration' augments a local theory by generic 
1202 
declaration functions written in ML. This enables arbitrary content 

1203 
being added to the context, depending on a morphism that tells the 

1204 
difference of the original declaration context wrt. the application 

1205 
context encountered later on. 

1206 

1207 
* Isar: proper interfaces for simplification procedures. Command 

1208 
'simproc_setup' declares named simprocs (with match patterns, and body 

1209 
text in ML). Attribute "simproc" adds/deletes simprocs in the current 

1210 
context. ML antiquotation @{simproc name} retrieves named simprocs. 

1211 

1212 
* Isar: an extra pair of brackets around attribute declarations 

1213 
abbreviates a theorem reference involving an internal dummy fact, 

1214 
which will be ignored later  only the effect of the attribute on 

1215 
the background context will persist. This form of inplace 

1216 
declarations is particularly useful with commands like 'declare' and 

1217 
'using', for example ``have A using [[simproc a]] by simp''. 

1218 

23369
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1219 
* Isar: method "assumption" (and implicit closing of subproofs) now 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1220 
takes simple nonatomic goal assumptions into account: after applying 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1221 
an assumption as a rule the resulting subgoals are solved by atomic 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1222 
assumption steps. This is particularly useful to finish 'obtain' 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1223 
goals, such as "!!x. (!!x. P x ==> thesis) ==> P x ==> thesis", 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1224 
without referring to the original premise "!!x. P x ==> thesis" in the 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1225 
Isar proof context. POTENTIAL INCOMPATIBILITY: method "assumption" is 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1226 
more permissive. 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1227 

227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1228 
* Isar: implicit use of prems from the Isar proof context is 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1229 
considered a legacy feature. Common applications like ``have A .'' 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1230 
may be replaced by ``have A by fact'' or ``note `A`''. In general, 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1231 
referencing facts explicitly here improves readability and 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1232 
maintainability of proof texts. 
227c51012cdb
* Isar: method "assumption" (implicit closing of subproofs) takes nonatomic goal assumptions into account;
wenzelm
parents:
23367
diff
changeset

1233 

17865  1234 
* Isar: improper proof element 'guess' is like 'obtain', but derives 
1235 
the obtained context from the course of reasoning! For example: 

1236 

1237 
assume "EX x y. A x & B y"  "any previous fact" 

1238 
then guess x and y by clarify 

1239 

1240 
This technique is potentially adventurous, depending on the facts and 

1241 
proof tools being involved here. 

1242 

18020  1243 
* Isar: known facts from the proof context may be specified as literal 
1244 
propositions, using ASCII backquote syntax. This works wherever 

1245 
named facts used to be allowed so far, in proof commands, proof 

1246 
methods, attributes etc. Literal facts are retrieved from the context 

1247 
according to unification of type and term parameters. For example, 

1248 
provided that "A" and "A ==> B" and "!!x. P x ==> Q x" are known 

1249 
theorems in the current context, then these are valid literal facts: 

1250 
`A` and `A ==> B` and `!!x. P x ==> Q x" as well as `P a ==> Q a` etc. 

1251 

1252 
There is also a proof method "fact" which does the same composition 

18044  1253 
for explicit goal states, e.g. the following proof texts coincide with 
1254 
certain special cases of literal facts: 

18020  1255 

1256 
have "A" by fact == note `A` 

1257 
have "A ==> B" by fact == note `A ==> B` 

1258 
have "!!x. P x ==> Q x" by fact == note `!!x. P x ==> Q x` 

1259 
have "P a ==> Q a" by fact == note `P a ==> Q a` 

1260 

20118
0c1ec587a5a8
* Isar: ":" (colon) is no longer a symbolic identifier character;
wenzelm
parents:
20090
diff
changeset

1261 
* Isar: ":" (colon) is no longer a symbolic identifier character in 
0c1ec587a5a8
* Isar: ":" (colon) is no longer a symbolic identifier character;
wenzelm
parents:
20090
diff
changeset

1262 
outer syntax. Thus symbolic identifiers may be used without 
0c1ec587a5a8
* Isar: ":" (colon) is no longer a symbolic identifier character;
wenzelm
parents:
20090
diff
changeset

1263 
additional white space in declarations like this: ``assume *: A''. 
0c1ec587a5a8
* Isar: ":" (colon) is no longer a symbolic identifier character;
wenzelm
parents:
20090
diff
changeset

1264 

20013  1265 
* Isar: 'print_facts' prints all local facts of the current context, 
1266 
both named and unnamed ones. 

1267 

18308  1268 
* Isar: 'def' now admits simultaneous definitions, e.g.: 
1269 

1270 
def x == "t" and y == "u" 

1271 

18540  1272 
* Isar: added command 'unfolding', which is structurally similar to 
1273 
'using', but affects both the goal state and facts by unfolding given 

18815
cb778c0ce1b5
Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents:
18738
diff
changeset

1274 
rewrite rules. Thus many occurrences of the 'unfold' method or 
18540  1275 
'unfolded' attribute may be replaced by firstclass proof text. 
1276 

18815
cb778c0ce1b5
Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents:
18738
diff
changeset

1277 
* Isar: methods 'unfold' / 'fold', attributes 'unfolded' / 'folded', 
cb778c0ce1b5
Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents:
18738
diff
changeset

1278 
and command 'unfolding' now all support objectlevel equalities 
cb778c0ce1b5
Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents:
18738
diff
changeset

1279 
(potentially conditional). The underlying notion of rewrite rule is 
cb778c0ce1b5
Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents:
18738
diff
changeset

1280 
analogous to the 'rule_format' attribute, but *not* that of the 
cb778c0ce1b5
Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents:
18738
diff
changeset

1281 
Simplifier (which is usually more generous). 
cb778c0ce1b5
Pure/Isar: (un)folded, (un)fold, unfolding support
wenzelm
parents:
18738
diff
changeset

1282 

24238  1283 
* Isar: the new attribute [rotated n] (default n = 1) rotates the 
1284 
premises of a theorem by n. Useful in conjunction with drule. 

1285 

19220  1286 
* Isar: the goal restriction operator [N] (default N = 1) evaluates a 
1287 
method expression within a sandbox consisting of the first N 

19240  1288 
subgoals, which need to exist. For example, ``simp_all [3]'' 
1289 
simplifies the first three subgoals, while (rule foo, simp_all)[] 

1290 
simplifies all new goals that emerge from applying rule foo to the 

1291 
originally first one. 

19220  1292 

19814
faa698d46686
* Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents:
19783
diff
changeset

1293 
* Isar: schematic goals are no longer restricted to higherorder 
faa698d46686
* Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents:
19783
diff
changeset

1294 
patterns; e.g. ``lemma "?P(?x)" by (rule TrueI)'' now works as 
faa698d46686
* Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents:
19783
diff
changeset

1295 
expected. 
faa698d46686
* Theory syntax: some popular names (e.g. "class", "if") are now keywords.
wenzelm
parents:
19783
diff
changeset

1296 

18901  1297 
* Isar: the conclusion of a long theorem statement is now either 
1298 
'shows' (a simultaneous conjunction, as before), or 'obtains' 

1299 
(essentially a disjunction of cases with local parameters and 

1300 
assumptions). The latter allows to express general elimination rules 

18910  1301 
adequately; in this notation common elimination rules look like this: 
18901  1302 

1303 
lemma exE:  "EX x. P x ==> (!!x. P x ==> thesis) ==> thesis" 

1304 
assumes "EX x. P x" 

1305 
obtains x where "P x" 

1306 

1307 
lemma conjE:  "A & B ==> (A ==> B ==> thesis) ==> thesis" 

1308 
assumes "A & B" 

1309 
obtains A and B 

1310 

1311 
lemma disjE:  "A  B ==> (A ==> thesis) ==> (B ==> thesis) ==> thesis" 

1312 
assumes "A  B" 

1313 
obtains 

1314 
A 

1315 
 B 

1316 

18910  1317 
The subsequent classical rules even refer to the formal "thesis" 
18901  1318 
explicitly: 
1319 

1320 
lemma classical:  "(~ thesis ==> thesis) ==> thesis" 

1321 
obtains "~ thesis" 

1322 

18910  1323 
lemma Peirce's_Law:  "((thesis ==> something) ==> thesis) ==> thesis" 
1324 
obtains "thesis ==> something" 

18901  1325 

1326 
The actual proof of an 'obtains' statement is analogous to that of the 

18910  1327 
Isar proof element 'obtain', only that there may be several cases. 
1328 
Optional case names may be specified in parentheses; these will be 

1329 
available both in the present proof and as annotations in the 

1330 
resulting rule, for later use with the 'cases' method (cf. attribute 

1331 
case_names). 

18901  1332 

21447
379f130843f7
* Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents:
21406
diff
changeset

1333 
* Isar: the assumptions of a long theorem statement are available as 
379f130843f7
* Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents:
21406
diff
changeset

1334 
"assms" fact in the proof context. This is more appropriate than the 
379f130843f7
* Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents:
21406
diff
changeset

1335 
(historical) "prems", which refers to all assumptions of the current 
379f130843f7
* Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents:
21406
diff
changeset

1336 
context, including those from the target locale, proof body etc. 
379f130843f7
* Isar: the assumptions of a long theorem statement are available as assms;
wenzelm
parents:
21406
diff
changeset

1337 

19263  1338 
* Isar: 'print_statement' prints theorems from the current theory or 
1339 
proof context in long statement form, according to the syntax of a 

1340 
toplevel lemma. 

1341 

18901  1342 
* Isar: 'obtain' takes an optional case name for the local context 
1343 
introduction rule (default "that"). 

1344 

19587  1345 
* Isar: removed obsolete 'concl is' patterns. INCOMPATIBILITY, use 
1346 
explicit (is "_ ==> ?foo") in the rare cases where this still happens 

1347 
to occur. 

1348 

19682
c8c301eb965a
* Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents:
19665
diff
changeset

1349 
* Pure: syntax "CONST name" produces a fully internalized constant 
c8c301eb965a
* Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents:
19665
diff
changeset

1350 
according to the current context. This is particularly useful for 
c8c301eb965a
* Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents:
19665
diff
changeset

1351 
syntax translations that should refer to internal constant 
c8c301eb965a
* Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents:
19665
diff
changeset

1352 
representations independently of name spaces. 
c8c301eb965a
* Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents:
19665
diff
changeset

1353 

21537
45b3a85ee548
* Pure: syntax constant for foo (binder) is called foo_binder;
wenzelm
parents:
21471
diff
changeset

1354 
* Pure: syntax constant for foo (binder "FOO ") is called "foo_binder" 
45b3a85ee548
* Pure: syntax constant for foo (binder) is called foo_binder;
wenzelm
parents:
21471
diff
changeset

1355 
instead of "FOO ". This allows multiple binder declarations to coexist 
45b3a85ee548
* Pure: syntax constant for foo (binder) is called foo_binder;
wenzelm
parents:
21471
diff
changeset

1356 
in the same context. INCOMPATIBILITY. 
45b3a85ee548
* Pure: syntax constant for foo (binder) is called foo_binder;
wenzelm
parents:
21471
diff
changeset

1357 

21209
dbb8decc36bc
'const_syntax' command: allow fixed variables, renamed to 'notation';
wenzelm
parents:
21200
diff
changeset

1358 
* Isar/locales: 'notation' provides a robust interface to the 'syntax' 
dbb8decc36bc
'const_syntax' command: allow fixed variables, renamed to 'notation';
wenzelm
parents:
21200
diff
changeset

1359 
primitive that also works in a locale context (both for constants and 
24950  1360 
fixed variables). Type declaration and internal syntactic representation 
1361 
of given constants retrieved from the context. Likewise, the 

1362 
'no_notation' command allows to remove given syntax annotations from the 

1363 
current context. 

19682
c8c301eb965a
* Pure: syntax 'CONST name' produces a fully internalized constant;
wenzelm
parents:
19665
diff
changeset

1364 

19665  1365 
* Isar/locales: new derived specification elements 'axiomatization', 
1366 
'definition', 'abbreviation', which support typeinference, admit 

19083  1367 
objectlevel specifications (equality, equivalence). See also the 
1368 
isarref manual. Examples: 

19081
085b5badb8de
* Isar/locales: new derived specification elements 'definition', 'abbreviation', 'axiomatization';
wenzelm
parents:
19034
diff
changeset

1369 

19665  1370 
axiomatization 
21595  1371 
eq (infix "===" 50) where 
1372 
eq_refl: "x === x" and eq_subst: "x === y ==> P x ==> P y" 

1373 

1374 
definition "f x y = x + y + 1" 

1375 
definition g where "g x = f x x" 

19081
085b5badb8de
* Isar/locales: new derived specification elements 'definition', 'abbreviation', 'axiomatization';
wenzelm
parents:
19034
diff
changeset

1376 

19363  1377 
abbreviation 
21595  1378 
neq (infix "=!=" 50) where 
19363  1379 
"x =!= y == ~ (x === y)" 
19081
085b5badb8de
* Isar/locales: new derived specification elements 'definition', 'abbreviation', 'axiomatization';
wenzelm
parents:
19034
diff
changeset

1380 

19083  1381 
These specifications may be also used in a locale context. Then the 
1382 
constants being introduced depend on certain fixed parameters, and the 

1383 
constant name is qualified by the locale base name. An internal 

1384 
abbreviation takes care for convenient input and output, making the 

19088  1385 
parameters implicit and using the original short name. See also 
25177  1386 
src/HOL/ex/Abstract_NAT.thy for an example of deriving polymorphic 
19083  1387 
entities from a monomorphic theory. 
1388 

1389 
Presently, abbreviations are only available 'in' a target locale, but 

19363  1390 
not inherited by general import expressions. Also note that 
1391 
'abbreviation' may be used as a typesafe replacement for 'syntax' + 
