author  nipkow 
Fri, 06 Aug 2004 16:54:26 +0200  
changeset 15119  e5f167042c1d 
parent 15103  79846e8792eb 
child 15127  2550a5578d39 
permissions  rwrr 
5363  1 
Isabelle NEWS  history userrelevant changes 
2 
============================================== 

2553  3 

14655
8a95abf87dd3
Pure: considerably improved version of 'constdefs' command;
wenzelm
parents:
14624
diff
changeset

4 
New in this Isabelle release 
8a95abf87dd3
Pure: considerably improved version of 'constdefs' command;
wenzelm
parents:
14624
diff
changeset

5 
 
8a95abf87dd3
Pure: considerably improved version of 'constdefs' command;
wenzelm
parents:
14624
diff
changeset

6 

8a95abf87dd3
Pure: considerably improved version of 'constdefs' command;
wenzelm
parents:
14624
diff
changeset

7 
*** General *** 
8a95abf87dd3
Pure: considerably improved version of 'constdefs' command;
wenzelm
parents:
14624
diff
changeset

8 

15103
79846e8792eb
New transitivity reasoners for transitivity only and quasi orders.
ballarin
parents:
15089
diff
changeset

9 
* Provers/quasi.ML: new transitivity reasoners for transitivity only 
79846e8792eb
New transitivity reasoners for transitivity only and quasi orders.
ballarin
parents:
15089
diff
changeset

10 
and quasi orders. 
79846e8792eb
New transitivity reasoners for transitivity only and quasi orders.
ballarin
parents:
15089
diff
changeset

11 

15076
4b3d280ef06a
New prover for transitive and reflexivetransitive closure of relations.
ballarin
parents:
15073
diff
changeset

12 
* Provers/trancl.ML: new transitivity reasoner for transitive and 
4b3d280ef06a
New prover for transitive and reflexivetransitive closure of relations.
ballarin
parents:
15073
diff
changeset

13 
reflexivetransitive closure of relations. 
4b3d280ef06a
New prover for transitive and reflexivetransitive closure of relations.
ballarin
parents:
15073
diff
changeset

14 

14655
8a95abf87dd3
Pure: considerably improved version of 'constdefs' command;
wenzelm
parents:
14624
diff
changeset

15 
* Pure: considerably improved version of 'constdefs' command. Now 
14731  16 
performs automatic typeinference of declared constants; additional 
17 
support for local structure declarations (cf. locales and HOL 

18 
records), see also isarref manual. Potential INCOMPATIBILITY: need 

19 
to observe strictly sequential dependencies of definitions within a 

20 
single 'constdefs' section; moreover, the declared name needs to be 

21 
an identifier. If all fails, consider to fall back on 'consts' and 

22 
'defs' separately. 

14655
8a95abf87dd3
Pure: considerably improved version of 'constdefs' command;
wenzelm
parents:
14624
diff
changeset

23 

14698
7e4dec3fd515
improvd indexed syntax and implicit structures; tuned renaming of symbolic identifiers
wenzelm
parents:
14682
diff
changeset

24 
* Pure: improved indexed syntax and implicit structures. First of 
14731  25 
all, indexed syntax provides a notational device for subscripted 
26 
application, using the new syntax \<^bsub>term\<^esub> for arbitrary 

27 
expressions. Secondly, in a local context with structure 

28 
declarations, number indexes \<^sub>n or the empty index (default 

29 
number 1) refer to a certain fixed variable implicitly; option 

30 
show_structs controls printing of implicit structures. Typical 

31 
applications of these concepts involve record types and locales. 

32 

14795
b702848de41f
Pure: clear separation of logical types and nonterminals;
wenzelm
parents:
14731
diff
changeset

33 
* Pure: clear separation of logical types and nonterminals, where the 
b702848de41f
Pure: clear separation of logical types and nonterminals;
wenzelm
parents:
14731
diff
changeset

34 
latter may only occur in 'syntax' specifications or type 
b702848de41f
Pure: clear separation of logical types and nonterminals;
wenzelm
parents:
14731
diff
changeset

35 
abbreviations. Before that distinction was only partially 
b702848de41f
Pure: clear separation of logical types and nonterminals;
wenzelm
parents:
14731
diff
changeset

36 
implemented via type class "logic" vs. "{}". Potential 
b702848de41f
Pure: clear separation of logical types and nonterminals;
wenzelm
parents:
14731
diff
changeset

37 
INCOMPATIBILITY in rare cases of improper use of 'types'/'consts' 
b702848de41f
Pure: clear separation of logical types and nonterminals;
wenzelm
parents:
14731
diff
changeset

38 
instead of 'nonterminals'/'syntax'. Some very exotic syntax 
14816
b77cebcd7e6e
* ML: all output via channels of writeln etc. passed through Output.output;
wenzelm
parents:
14795
diff
changeset

39 
specifications may require further adaption (e.g. Cube/Base.thy). 
b77cebcd7e6e
* ML: all output via channels of writeln etc. passed through Output.output;
wenzelm
parents:
14795
diff
changeset

40 

14854  41 
* Pure: removed obsolete type class "logic", use the top sort {} 
42 
instead. Note that nonlogical types should be declared as 

43 
'nonterminals' rather than 'types'. INCOMPATIBILITY for new 

44 
objectlogic specifications. 

45 

15022  46 
* Pure: print_tac now outputs the goal through the trace channel. 
47 

48 
* Pure: reference Namespace.unique_names included. If true the 

49 
(shortest) namespaceprefix is printed to disambiguate conflicts (as 

50 
yet). If false the first entry wins (as during parsing). Default 

51 
value is true. 

15018  52 

15033
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

53 
* Pure: tuned internal renaming of symbolic identifiers  attach 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

54 
primes instead of base 26 numbers. 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

55 

14816
b77cebcd7e6e
* ML: all output via channels of writeln etc. passed through Output.output;
wenzelm
parents:
14795
diff
changeset

56 
* Pure/Syntax: inner syntax includes (*(*nested*) comments*). 
b77cebcd7e6e
* ML: all output via channels of writeln etc. passed through Output.output;
wenzelm
parents:
14795
diff
changeset

57 

b77cebcd7e6e
* ML: all output via channels of writeln etc. passed through Output.output;
wenzelm
parents:
14795
diff
changeset

58 
* Pure/Syntax: pretty pinter now supports unbreakable blocks, 
b77cebcd7e6e
* ML: all output via channels of writeln etc. passed through Output.output;
wenzelm
parents:
14795
diff
changeset

59 
specified in mixfix annotations as "(00...)". 
b77cebcd7e6e
* ML: all output via channels of writeln etc. passed through Output.output;
wenzelm
parents:
14795
diff
changeset

60 

b77cebcd7e6e
* ML: all output via channels of writeln etc. passed through Output.output;
wenzelm
parents:
14795
diff
changeset

61 
* Pure/Syntax: 'advanced' translation functions (parse_translation 
b77cebcd7e6e
* ML: all output via channels of writeln etc. passed through Output.output;
wenzelm
parents:
14795
diff
changeset

62 
etc.) may depend on the signature of the theory context being 
b77cebcd7e6e
* ML: all output via channels of writeln etc. passed through Output.output;
wenzelm
parents:
14795
diff
changeset

63 
presently used for parsing/printing, see also isarref manual. 
b77cebcd7e6e
* ML: all output via channels of writeln etc. passed through Output.output;
wenzelm
parents:
14795
diff
changeset

64 

15033
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

65 
* Pure/Simplifier: simplification procedures may now take the current 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

66 
simpset into account (cf. Simplifier.simproc(_i) / mk_simproc 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

67 
interface), which is very useful for calling the Simplifier 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

68 
recursively. Minor INCOMPATIBILITY: the 'prems' argument of 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

69 
simprocs is gone  use prems_of_ss on the simpset instead. 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

70 
Moreover, the lowlevel mk_simproc no longer applies Logic.varify 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

71 
internally, to allow for use in a context of fixed variables. 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

72 

255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

73 
* Provers: Simplifier and Classical Reasoner now support proof context 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

74 
dependent plugins (simprocs, solvers, wrappers etc.). These extra 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

75 
components are stored in the theory and patched into the 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

76 
simpset/claset when used in an Isar proof context. Context 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

77 
dependent components are maintained by the following theory 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

78 
operations: 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

79 

255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

80 
Simplifier.add_context_simprocs 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

81 
Simplifier.del_context_simprocs 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

82 
Simplifier.set_context_subgoaler 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

83 
Simplifier.reset_context_subgoaler 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

84 
Simplifier.add_context_looper 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

85 
Simplifier.del_context_looper 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

86 
Simplifier.add_context_unsafe_solver 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

87 
Simplifier.add_context_safe_solver 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

88 

255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

89 
Classical.add_context_safe_wrapper 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

90 
Classical.del_context_safe_wrapper 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

91 
Classical.add_context_unsafe_wrapper 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

92 
Classical.del_context_unsafe_wrapper 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

93 

255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

94 
IMPORTANT NOTE: proof tools (methods etc.) need to use 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

95 
local_simpset_of and local_claset_of to instead of the primitive 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

96 
Simplifier.get_local_simpset and Classical.get_local_claset, 
255bc508a756
Simplifier and Classical Reasoner now support proof context dependent plugins;
wenzelm
parents:
15022
diff
changeset

97 
respectively, in order to see the context dependent fields! 
14816
b77cebcd7e6e
* ML: all output via channels of writeln etc. passed through Output.output;
wenzelm
parents:
14795
diff
changeset

98 

14897
577f95db94e4
* Document preparation: antiquotations provide option 'locale=NAME';
wenzelm
parents:
14885
diff
changeset

99 
* Document preparation: antiquotations now provide the option 
577f95db94e4
* Document preparation: antiquotations provide option 'locale=NAME';
wenzelm
parents:
14885
diff
changeset

100 
'locale=NAME' to specify an alternative context used for evaluating 
577f95db94e4
* Document preparation: antiquotations provide option 'locale=NAME';
wenzelm
parents:
14885
diff
changeset

101 
and printing the subsequent argument, as in @{thm [locale=LC] 
14919  102 
fold_commute}, for example. 
14897
577f95db94e4
* Document preparation: antiquotations provide option 'locale=NAME';
wenzelm
parents:
14885
diff
changeset

103 

14934  104 
* Document preparation: commands 'display_drafts' and 'print_drafts' 
105 
perform simple output of raw sources. Only those symbols that do 

106 
not require additional LaTeX packages (depending on comments in 

107 
isabellesym.sty) are displayed properly, everything else is left 

108 
verbatim. We use isatool display and isatool print as front ends; 

109 
these are subject to the DVI_VIEWER and PRINT_COMMAND settings, 

110 
respectively. 

111 

14917  112 
* ML: output via the Isabelle channels of writeln/warning/error 
113 
etc. is now passed through Output.output, with a hook for arbitrary 

114 
transformations depending on the print_mode (cf. Output.add_mode  

115 
the first active mode that provides a output function wins). 

116 
Already formatted output may be embedded into further text via 

117 
Output.raw; the result of Pretty.string_of/str_of and derived 

118 
functions (string_of_term/cterm/thm etc.) is already marked raw to 

119 
accommodate easy composition of diagnostic messages etc. 

120 
Programmers rarely need to care about Output.output or Output.raw at 

121 
all, with some notable exceptions: Output.output is required when 

122 
bypassing the standard channels (writeln etc.), or in token 

123 
translations to produce properly formatted results; Output.raw is 

124 
required when capturing already output material that will eventually 

14972  125 
be presented to the user a second time. For the default print mode, 
126 
both Output.output and Output.raw have no effect. 

14795
b702848de41f
Pure: clear separation of logical types and nonterminals;
wenzelm
parents:
14731
diff
changeset

127 

14707  128 

14700
2f885b7e5ba7
reimplementation of HOL records; only one type is created for
schirmer
parents:
14699
diff
changeset

129 
*** HOL *** 
2f885b7e5ba7
reimplementation of HOL records; only one type is created for
schirmer
parents:
14699
diff
changeset

130 

14731  131 
* HOL/record: reimplementation of records. Improved scalability for 
132 
records with many fields, avoiding performance problems for type 

133 
inference. Records are no longer composed of nested field types, but 

134 
of nested extension types. Therefore the record type only grows 

135 
linear in the number of extensions and not in the number of fields. 

136 
The toplevel (users) view on records is preserved. Potential 

137 
INCOMPATIBILITY only in strange cases, where the theory depends on 

138 
the old record representation. The type generated for a record is 

139 
called <record_name>_ext_type. 

140 

15022  141 
* HOL/record: Reference record_quick_and_dirty_sensitive can be 
142 
enabled to skip the proofs triggered by a record definition or a 

143 
simproc (if quick_and_dirty is enabled). Definitions of large 

144 
records can take quite long. 

145 

146 
* HOL/record: "record_upd_simproc" for simplification of multiple 

147 
record updates enabled by default. Moreover, trivial updates are 

148 
also removed: r(x := x r) = r. INCOMPATIBILITY: old proofs break 

149 
occasionally, since simplification is more powerful by default. 

15012
28fa57b57209
Added reference record_definition_quick_and_dirty_sensitive, to
schirmer
parents:
15011
diff
changeset

150 

14878  151 
* HOL: symbolic syntax of Hilbert Choice Operator is now as follows: 
152 

153 
syntax (epsilon) 

154 
"_Eps" :: "[pttrn, bool] => 'a" ("(3\<some>_./ _)" [0, 10] 10) 

155 

156 
The symbol \<some> is displayed as the alternative epsilon of LaTeX 

157 
and xsymbol; use option 'm epsilon' to get it actually printed. 

158 
Moreover, the mathematically important symbolic identifier 

159 
\<epsilon> becomes available as variable, constant etc. 

160 

15046  161 
* HOL/SetInterval: The syntax for open intervals has changed: 
162 

163 
Old New 

164 
{..n(} > {..<n} 

165 
{)n..} > {n<..} 

166 
{m..n(} > {m..<n} 

167 
{)m..n} > {m<..n} 

168 
{)m..n(} > {m<..<n} 

169 

170 
The old syntax is still supported but will disappear in the future. 

171 
For conversion use the following emacs search and replace patterns: 

172 

173 
{)\([^\.]*\)\.\. > {\1<\.\.} 

174 
\.\.\([^(}]*\)(} > \.\.<\1} 

175 

176 
They are not perfect but work quite well. 

177 

15073  178 
* HOL: The syntax for 'setsum', summation over finite sets, has changed: 
179 

180 
The syntax for 'setsum (%x. e) A' used to be '\<Sum>x:A. e' 

181 
and is now either 'SUM x:A. e' or '\<Sum>x\<in>A. e'. 

182 

183 
There is new syntax for summation over finite sets: 

15046  184 

15050  185 
'\<Sum>x  P. e' is the same as 'setsum (%x. e) {x. P}' 
186 
'\<Sum>x=a..b. e' is the same as 'setsum (%x. e) {a..b}' 

187 
'\<Sum>x=a..<b. e' is the same as 'setsum (%x. e) {a..<b}' 

188 
'\<Sum>x<k. e' is the same as 'setsum (%x. e) {..<k}' 

15046  189 

190 
Function 'Summation' over nat is gone, its syntax '\<Sum>i<k. e' 

191 
now translates into 'setsum' as above. 

192 

15089
430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

193 
* HOL/Simplifier: Is now set up to reason about transitivity chains 
430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

194 
involving "trancl" (r^+) and "rtrancl" (r^*) by setting up tactics 
430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

195 
provided by Provers/trancl.ML as additional solvers. 
430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

196 
INCOMPATIBILITY: old proofs break occasionally as simplification may 
430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

197 
now solve more goals than previously. 
430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

198 

14655
8a95abf87dd3
Pure: considerably improved version of 'constdefs' command;
wenzelm
parents:
14624
diff
changeset

199 

14682
a5072752114c
HOLCF: discontinued special version of 'constdefs';
wenzelm
parents:
14655
diff
changeset

200 
*** HOLCF *** 
a5072752114c
HOLCF: discontinued special version of 'constdefs';
wenzelm
parents:
14655
diff
changeset

201 

a5072752114c
HOLCF: discontinued special version of 'constdefs';
wenzelm
parents:
14655
diff
changeset

202 
* HOLCF: discontinued special version of 'constdefs' (which used to 
14731  203 
support continuous functions) in favor of the general Pure one with 
204 
full typeinference. 

14682
a5072752114c
HOLCF: discontinued special version of 'constdefs';
wenzelm
parents:
14655
diff
changeset

205 

a5072752114c
HOLCF: discontinued special version of 'constdefs';
wenzelm
parents:
14655
diff
changeset

206 

14885  207 
*** ZF *** 
208 

15089
430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

209 
* ZF/ex/{Group,Ring}: examples in abstract algebra, including the 
430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

210 
First Isomorphism Theorem (on quotienting by the kernel of a 
430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

211 
homomorphism). 
430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

212 

430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

213 
* ZF/Simplifier: install second copy of type solver that actually 
430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

214 
makes use of TC rules declared to Isar proof contexts (or locales); 
430264838064
ZF/Simplifier: second copy of context type solver;
wenzelm
parents:
15076
diff
changeset

215 
the old version is still required for ML proof scripts. 
14885  216 

217 

14655
8a95abf87dd3
Pure: considerably improved version of 'constdefs' command;
wenzelm
parents:
14624
diff
changeset

218 

14606  219 
New in Isabelle2004 (April 2004) 
220 
 

13280
306ef3aef61b
* improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents:
13190
diff
changeset

221 

14171
0cab06e3bbd0
Extended the notion of letter and digit, such that now one may use greek,
skalberg
parents:
14136
diff
changeset

222 
*** General *** 
0cab06e3bbd0
Extended the notion of letter and digit, such that now one may use greek,
skalberg
parents:
14136
diff
changeset

223 

14398
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

224 
* Provers/order.ML: new efficient reasoner for partial and linear orders. 
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

225 
Replaces linorder.ML. 
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

226 

14606  227 
* Pure: Greek letters (except small lambda, \<lambda>), as well as Gothic 
228 
(\<aa>...\<zz>\<AA>...\<ZZ>), calligraphic (\<A>...\<Z>), and Euler 

14173  229 
(\<a>...\<z>), are now considered normal letters, and can therefore 
230 
be used anywhere where an ASCII letter (a...zA...Z) has until 

231 
now. COMPATIBILITY: This obviously changes the parsing of some 

232 
terms, especially where a symbol has been used as a binder, say 

233 
'\<Pi>x. ...', which is now a type error since \<Pi>x will be parsed 

234 
as an identifier. Fix it by inserting a space around former 

235 
symbols. Call 'isatool fixgreek' to try to fix parsing errors in 

236 
existing theory and ML files. 

14171
0cab06e3bbd0
Extended the notion of letter and digit, such that now one may use greek,
skalberg
parents:
14136
diff
changeset

237 

14237  238 
* Pure: Macintosh and Windows linebreaks are now allowed in theory files. 
239 

14731  240 
* Pure: single letter sub/superscripts (\<^isub> and \<^isup>) are now 
241 
allowed in identifiers. Similar to Greek letters \<^isub> is now considered 

242 
a normal (but invisible) letter. For multiple letter subscripts repeat 

243 
\<^isub> like this: x\<^isub>1\<^isub>2. 

14233  244 

14333  245 
* Pure: There are now sub/superscripts that can span more than one 
246 
character. Text between \<^bsub> and \<^esub> is set in subscript in 

14606  247 
ProofGeneral and LaTeX, text between \<^bsup> and \<^esup> in 
248 
superscript. The new control characters are not identifier parts. 

14333  249 

14561
c53396af770e
* raw control symbols are of the form \<^raw:...> now.
schirmer
parents:
14556
diff
changeset

250 
* Pure: Controlsymbols of the form \<^raw:...> will literally print the 
14606  251 
content of "..." to the latex file instead of \isacntrl... . The "..." 
252 
may consist of any printable characters excluding the end bracket >. 

14361
ad2f5da643b4
* Support for raw latex output in control symbols: \<^raw...>
schirmer
parents:
14333
diff
changeset

253 

14237  254 
* Pure: Using new Isar command "finalconsts" (or the ML functions 
255 
Theory.add_finals or Theory.add_finals_i) it is now possible to 

256 
declare constants "final", which prevents their being given a definition 

257 
later. It is useful for constants whose behaviour is fixed axiomatically 

14224  258 
rather than definitionally, such as the metalogic connectives. 
259 

14606  260 
* Pure: 'instance' now handles general arities with general sorts 
261 
(i.e. intersections of classes), 

14503
255ad604e08e
Added check that Theory.ML does not occur in the files section of the theory
skalberg
parents:
14480
diff
changeset

262 

14547  263 
* Presentation: generated HTML now uses a CSS style sheet to make layout 
14731  264 
(somewhat) independent of content. It is copied from lib/html/isabelle.css. 
14547  265 
It can be changed to alter the colors/layout of generated pages. 
266 

14556
c5078f6c99a9
* Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents:
14551
diff
changeset

267 

14175
dbd16ebaf907
Method rule_tac understands Isar contexts: documentation.
ballarin
parents:
14173
diff
changeset

268 
*** Isar *** 
dbd16ebaf907
Method rule_tac understands Isar contexts: documentation.
ballarin
parents:
14173
diff
changeset

269 

14508
859b11514537
Experimental command for instantiation of locales in proof contexts:
ballarin
parents:
14503
diff
changeset

270 
* Tactic emulation methods rule_tac, erule_tac, drule_tac, frule_tac, 
859b11514537
Experimental command for instantiation of locales in proof contexts:
ballarin
parents:
14503
diff
changeset

271 
cut_tac, subgoal_tac and thin_tac: 
14175
dbd16ebaf907
Method rule_tac understands Isar contexts: documentation.
ballarin
parents:
14173
diff
changeset

272 
 Now understand static (Isar) contexts. As a consequence, users of Isar 
dbd16ebaf907
Method rule_tac understands Isar contexts: documentation.
ballarin
parents:
14173
diff
changeset

273 
locales are no longer forced to write Isar proof scripts. 
dbd16ebaf907
Method rule_tac understands Isar contexts: documentation.
ballarin
parents:
14173
diff
changeset

274 
For details see Isar Reference Manual, paragraph 4.3.2: Further tactic 
dbd16ebaf907
Method rule_tac understands Isar contexts: documentation.
ballarin
parents:
14173
diff
changeset

275 
emulations. 
dbd16ebaf907
Method rule_tac understands Isar contexts: documentation.
ballarin
parents:
14173
diff
changeset

276 
 INCOMPATIBILITY: names of variables to be instantiated may no 
14211
7286c187596d
Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents:
14199
diff
changeset

277 
longer be enclosed in quotes. Instead, precede variable name with `?'. 
7286c187596d
Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents:
14199
diff
changeset

278 
This is consistent with the instantiation attribute "where". 
7286c187596d
Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents:
14199
diff
changeset

279 

14257
a7ef3f7588c5
Type inference bug in Isar attributes "where" and "of" fixed.
ballarin
parents:
14255
diff
changeset

280 
* Attributes "where" and "of": 
14285
92ed032e83a1
Isar: where attribute supports instantiation of type vars.
ballarin
parents:
14283
diff
changeset

281 
 Now take type variables of instantiated theorem into account when reading 
92ed032e83a1
Isar: where attribute supports instantiation of type vars.
ballarin
parents:
14283
diff
changeset

282 
the instantiation string. This fixes a bug that caused instantiated 
92ed032e83a1
Isar: where attribute supports instantiation of type vars.
ballarin
parents:
14283
diff
changeset

283 
theorems to have too special types in some circumstances. 
92ed032e83a1
Isar: where attribute supports instantiation of type vars.
ballarin
parents:
14283
diff
changeset

284 
 "where" permits explicit instantiations of type variables. 
14257
a7ef3f7588c5
Type inference bug in Isar attributes "where" and "of" fixed.
ballarin
parents:
14255
diff
changeset

285 

14556
c5078f6c99a9
* Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents:
14551
diff
changeset

286 
* Calculation commands "moreover" and "also" no longer interfere with 
c5078f6c99a9
* Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents:
14551
diff
changeset

287 
current facts ("this"), admitting arbitrary combinations with "then" 
c5078f6c99a9
* Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents:
14551
diff
changeset

288 
and derived forms. 
14283  289 

14211
7286c187596d
Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents:
14199
diff
changeset

290 
* Locales: 
7286c187596d
Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents:
14199
diff
changeset

291 
 Goal statements involving the context element "includes" no longer 
7286c187596d
Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents:
14199
diff
changeset

292 
generate theorems with internal delta predicates (those ending on 
7286c187596d
Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents:
14199
diff
changeset

293 
"_axioms") in the premise. 
7286c187596d
Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents:
14199
diff
changeset

294 
Resolve particular premise with <locale>.intro to obtain old form. 
7286c187596d
Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents:
14199
diff
changeset

295 
 Fixed bug in type inference ("unify_frozen") that prevented mix of target 
7286c187596d
Improvements to Isar/Locales: premises generated by "includes" elements
ballarin
parents:
14199
diff
changeset

296 
specification and "includes" elements in goal statement. 
14254
342634f38451
Isar/Locales: <loc>.intro and <loc>.axioms no longer intro? and elim? by
ballarin
parents:
14243
diff
changeset

297 
 Rule sets <locale>.intro and <locale>.axioms no longer declared as 
342634f38451
Isar/Locales: <loc>.intro and <loc>.axioms no longer intro? and elim? by
ballarin
parents:
14243
diff
changeset

298 
[intro?] and [elim?] (respectively) by default. 
14508
859b11514537
Experimental command for instantiation of locales in proof contexts:
ballarin
parents:
14503
diff
changeset

299 
 Experimental command for instantiation of locales in proof contexts: 
14551  300 
instantiate <label>[<attrs>]: <loc> 
14508
859b11514537
Experimental command for instantiation of locales in proof contexts:
ballarin
parents:
14503
diff
changeset

301 
Instantiates locale <loc> and adds all its theorems to the current context 
14551  302 
taking into account their attributes. Label and attrs are optional 
303 
modifiers, like in theorem declarations. If present, names of 

304 
instantiated theorems are qualified with <label>, and the attributes 

305 
<attrs> are applied after any attributes these theorems might have already. 

306 
If the locale has assumptions, a chained fact of the form 

14508
859b11514537
Experimental command for instantiation of locales in proof contexts:
ballarin
parents:
14503
diff
changeset

307 
"<loc> t1 ... tn" is expected from which instantiations of the parameters 
14551  308 
are derived. The command does not support oldstyle locales declared 
309 
with "locale (open)". 

310 
A few (very simple) examples can be found in FOL/ex/LocaleInst.thy. 

14175
dbd16ebaf907
Method rule_tac understands Isar contexts: documentation.
ballarin
parents:
14173
diff
changeset

311 

dbd16ebaf907
Method rule_tac understands Isar contexts: documentation.
ballarin
parents:
14173
diff
changeset

312 
* HOL: Tactic emulation methods induct_tac and case_tac understand static 
dbd16ebaf907
Method rule_tac understands Isar contexts: documentation.
ballarin
parents:
14173
diff
changeset

313 
(Isar) contexts. 
dbd16ebaf907
Method rule_tac understands Isar contexts: documentation.
ballarin
parents:
14173
diff
changeset

314 

14556
c5078f6c99a9
* Calculation commands "moreover" and "also" no longer interfere with
wenzelm
parents:
14551
diff
changeset

315 

14136  316 
*** HOL *** 
317 

14624  318 
* Proof import: new image HOL4 contains the imported library from 
319 
the HOL4 system with about 2500 theorems. It is imported by 

320 
replaying proof terms produced by HOL4 in Isabelle. The HOL4 image 

321 
can be used like any other Isabelle image. See 

322 
HOL/Import/HOL/README for more information. 

323 

14398
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

324 
* Simplifier: 
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

325 
 Much improved handling of linear and partial orders. 
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

326 
Reasoners for linear and partial orders are set up for type classes 
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

327 
"linorder" and "order" respectively, and are added to the default simpset 
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

328 
as solvers. This means that the simplifier can build transitivity chains 
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

329 
to solve goals from the assumptions. 
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

330 
 INCOMPATIBILITY: old proofs break occasionally. Typically, applications 
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

331 
of blast or auto after simplification become unnecessary because the goal 
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

332 
is solved by simplification already. 
c5c47703f763
Efficient, graphbased reasoner for linear and partial orders.
ballarin
parents:
14389
diff
changeset

333 

14731  334 
* Numerics: new theory Ring_and_Field contains over 250 basic numerical laws, 
14389  335 
all proved in axiomatic type classes for semirings, rings and fields. 
336 

337 
* Numerics: 

338 
 Numeric types (nat, int, and in HOLComplex rat, real, complex, etc.) are 

14731  339 
now formalized using the Ring_and_Field theory mentioned above. 
14389  340 
 INCOMPATIBILITY: simplification and arithmetic behaves somewhat differently 
341 
than before, because now they are set up once in a generic manner. 

14731  342 
 INCOMPATIBILITY: many typespecific arithmetic laws have gone. 
14480  343 
Look for the general versions in Ring_and_Field (and Power if they concern 
344 
exponentiation). 

14389  345 

14401  346 
* Type "rat" of the rational numbers is now available in HOLComplex. 
14389  347 

14255  348 
* Records: 
349 
 Record types are now by default printed with their type abbreviation 

350 
instead of the list of all field types. This can be configured via 

351 
the reference "print_record_type_abbr". 

14731  352 
 Simproc "record_upd_simproc" for simplification of multiple updates added 
14255  353 
(not enabled by default). 
14427  354 
 Simproc "record_ex_sel_eq_simproc" to simplify EX x. sel r = x resp. 
355 
EX x. x = sel r to True (not enabled by default). 

14255  356 
 Tactic "record_split_simp_tac" to split and simplify records added. 
14731  357 

14136  358 
* 'specification' command added, allowing for definition by 
14224  359 
specification. There is also an 'ax_specification' command that 
360 
introduces the new constants axiomatically. 

14136  361 

14375  362 
* arith(_tac) is now able to generate counterexamples for reals as well. 
363 

14399
dc677b35e54f
New lemmas about inversion of restricted functions.
ballarin
parents:
14398
diff
changeset

364 
* HOLAlgebra: new locale "ring" for noncommutative rings. 
dc677b35e54f
New lemmas about inversion of restricted functions.
ballarin
parents:
14398
diff
changeset

365 

14243  366 
* HOLex: InductiveInvariant_examples illustrates advanced recursive function 
14610  367 
definitions, thanks to Sava Krsti\'{c} and John Matthews. 
368 

14731  369 
* HOLMatrix: a first theory for matrices in HOL with an application of 
14610  370 
matrix theory to linear programming. 
14136  371 

14380  372 
* Unions and Intersections: 
15119  373 
The latex output syntax of UN and INT has been changed 
374 
from "\Union x \in A. B" to "\Union_{x \in A} B" 

375 
i.e. the index formulae has become a subscript. 

376 
Similarly for "\Union x. B", and for \Inter instead of \Union. 

14380  377 

14418  378 
* Unions and Intersections over Intervals: 
14731  379 
There is new short syntax "UN i<=n. A" for "UN i:{0..n}. A". There is 
380 
also an xsymbol version with subscripts "\<Union>\<^bsub>i <= n\<^esub>. A" 

14418  381 
like in normal math, and corresponding versions for < and for intersection. 
382 

14401  383 
* ML: the legacy theory structures Int and List have been removed. They had 
384 
conflicted with ML Basis Library structures having the same names. 

14380  385 

14464  386 
* 'refute' command added to search for (finite) countermodels. Only works 
387 
for a fragment of HOL. The installation of an external SAT solver is 

388 
highly recommended. See "HOL/Refute.thy" for details. 

389 

14602  390 
* 'quickcheck' command: Allows to find counterexamples by evaluating 
391 
formulae under an assignment of free variables to random values. 

392 
In contrast to 'refute', it can deal with inductive datatypes, 

393 
but cannot handle quantifiers. See "HOL/ex/Quickcheck_Examples.thy" 

394 
for examples. 

14464  395 

14606  396 

14536  397 
*** HOLCF *** 
398 

399 
* Streams now come with concatenation and are part of the HOLCF image 

400 

14572  401 

402 

14136  403 
New in Isabelle2003 (May 2003) 
14606  404 
 
14136  405 

13280
306ef3aef61b
* improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents:
13190
diff
changeset

406 
*** General *** 
306ef3aef61b
* improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents:
13190
diff
changeset

407 

13618  408 
* Provers/simplifier: 
409 

13781  410 
 Completely reimplemented method simp (ML: Asm_full_simp_tac): 
13618  411 
Assumptions are now subject to complete mutual simplification, 
412 
not just from left to right. The simplifier now preserves 

413 
the order of assumptions. 

414 

415 
Potential INCOMPATIBILITY: 

416 

13781  417 
 simp sometimes diverges where the old version did 
418 
not, e.g. invoking simp on the goal 

13618  419 

420 
[ P (f x); y = x; f x = f y ] ==> Q 

421 

13781  422 
now gives rise to the infinite reduction sequence 
423 

424 
P(f x) (f x = f y)> P(f y) (y = x)> P(f x) (f x = f y)> ... 

425 

426 
Using "simp (asm_lr)" (ML: Asm_lr_simp_tac) instead often solves this 

427 
kind of problem. 

428 

429 
 Tactics combining classical reasoner and simplification (such as auto) 

430 
are also affected by this change, because many of them rely on 

431 
simp. They may sometimes diverge as well or yield a different numbers 

432 
of subgoals. Try to use e.g. force, fastsimp, or safe instead of auto 

433 
in case of problems. Sometimes subsequent calls to the classical 

434 
reasoner will fail because a preceeding call to the simplifier too 

435 
eagerly simplified the goal, e.g. deleted redundant premises. 

13618  436 

437 
 The simplifier trace now shows the names of the applied rewrite rules 

438 

13829  439 
 You can limit the number of recursive invocations of the simplifier 
440 
during conditional rewriting (where the simplifie tries to solve the 

441 
conditions before applying the rewrite rule): 

442 
ML "simp_depth_limit := n" 

443 
where n is an integer. Thus you can force termination where previously 

444 
the simplifier would diverge. 

445 

13835
12b2ffbe543a
Change to meta simplifier: congruence rules may now have frees as head of term.
ballarin
parents:
13829
diff
changeset

446 
 Accepts free variables as head terms in congruence rules. Useful in Isar. 
13829  447 

13938  448 
 No longer aborts on failed congruence proof. Instead, the 
449 
congruence is ignored. 

450 

14008  451 
* Pure: New generic framework for extracting programs from constructive 
452 
proofs. See HOL/Extraction.thy for an example instantiation, as well 

453 
as HOL/Extraction for some case studies. 

454 

13868  455 
* Pure: The main goal of the proof state is no longer shown by default, only 
456 
the subgoals. This behaviour is controlled by a new flag. 

13835
12b2ffbe543a
Change to meta simplifier: congruence rules may now have frees as head of term.
ballarin
parents:
13829
diff
changeset

457 
PG menu: Isabelle/Isar > Settings > Show Main Goal 
13815  458 
(ML: Proof.show_main_goal). 
459 

460 
* Pure: You can find all matching introduction rules for subgoal 1, i.e. all 

461 
rules whose conclusion matches subgoal 1: 

462 
PG menu: Isabelle/Isar > Show me > matching rules 

463 
The rules are ordered by how closely they match the subgoal. 

464 
In particular, rules that solve a subgoal outright are displayed first 

465 
(or rather last, the way they are printed). 

466 
(ML: ProofGeneral.print_intros()) 

467 

468 
* Pure: New flag trace_unify_fail causes unification to print 

13781  469 
diagnostic information (PG: in trace buffer) when it fails. This is 
470 
useful for figuring out why single step proofs like rule, erule or 

471 
assumption failed. 

472 

13815  473 
* Pure: Locale specifications now produce predicate definitions 
13410
f2cd09766864
* Pure: locale specifications now produce predicate definitions;
wenzelm
parents:
13344
diff
changeset

474 
according to the body of text (covering assumptions modulo local 
f2cd09766864
* Pure: locale specifications now produce predicate definitions;
wenzelm
parents:
13344
diff
changeset

475 
definitions); predicate "loc_axioms" covers newly introduced text, 
f2cd09766864
* Pure: locale specifications now produce predicate definitions;
wenzelm
parents:
13344
diff
changeset

476 
while "loc" is cumulative wrt. all included locale expressions; the 
f2cd09766864
* Pure: locale specifications now produce predicate definitions;
wenzelm
parents:
13344
diff
changeset

477 
latter view is presented only on export into the global theory 
f2cd09766864
* Pure: locale specifications now produce predicate definitions;
wenzelm
parents:
13344
diff
changeset

478 
context; potential INCOMPATIBILITY, use "(open)" option to fall back 
f2cd09766864
* Pure: locale specifications now produce predicate definitions;
wenzelm
parents:
13344
diff
changeset

479 
on the old view without predicates; 
f2cd09766864
* Pure: locale specifications now produce predicate definitions;
wenzelm
parents:
13344
diff
changeset

480 

13459
83f41b047a39
* Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents:
13443
diff
changeset

481 
* Pure: predefined locales "var" and "struct" are useful for sharing 
83f41b047a39
* Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents:
13443
diff
changeset

482 
parameters (as in CASL, for example); just specify something like 
83f41b047a39
* Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents:
13443
diff
changeset

483 
``var x + var y + struct M'' as import; 
83f41b047a39
* Pure: predefined locales "var" and "struct" are useful for sharing
wenzelm
parents:
13443
diff
changeset

484 

13463
07747943c626
* Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents:
13459
diff
changeset

485 
* Pure: improved thms_containing: proper indexing of facts instead of 
07747943c626
* Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents:
13459
diff
changeset

486 
raw theorems; check validity of results wrt. current name space; 
07747943c626
* Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents:
13459
diff
changeset

487 
include local facts of proof configuration (also covers active 
13541  488 
locales), cover fixed variables in index; may use "_" in term 
489 
specification; an optional limit for the number of printed facts may 

490 
be given (the default is 40); 

491 

492 
* Pure: disallow duplicate fact bindings within newstyle theory files 

493 
(batchmode only); 

13540
aede0306e214
* Pure: disallow duplicate fact bindings within newstyle theory files;
wenzelm
parents:
13522
diff
changeset

494 

13463
07747943c626
* Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents:
13459
diff
changeset

495 
* Provers: improved induct method: assumptions introduced by case 
07747943c626
* Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents:
13459
diff
changeset

496 
"foo" are split into "foo.hyps" (from the rule) and "foo.prems" (from 
07747943c626
* Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents:
13459
diff
changeset

497 
the goal statement); "foo" still refers to all facts collectively; 
07747943c626
* Provers: Simplifier.simproc(_i) now provide sane interface for
wenzelm
parents:
13459
diff
changeset

498 

13550  499 
* Provers: the function blast.overloaded has been removed: all constants 
500 
are regarded as potentially overloaded, which improves robustness in exchange 

501 
for slight decrease in efficiency; 

502 

13781  503 
* Provers/linorder: New generic prover for transitivity reasoning over 
504 
linear orders. Note: this prover is not efficient! 

505 

13522
934fffeb6f38
* Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents:
13518
diff
changeset

506 
* Isar: preview of problems to finish 'show' now produce an error 
934fffeb6f38
* Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents:
13518
diff
changeset

507 
rather than just a warning (in interactive mode); 
934fffeb6f38
* Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents:
13518
diff
changeset

508 

13280
306ef3aef61b
* improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents:
13190
diff
changeset

509 

13158  510 
*** HOL *** 
511 

13899  512 
* arith(_tac) 
513 

514 
 Produces a counter example if it cannot prove a goal. 

515 
Note that the counter example may be spurious if the goal is not a formula 

516 
of quantifierfree linear arithmetic. 

517 
In ProofGeneral the counter example appears in the trace buffer. 

518 

519 
 Knows about div k and mod k where k is a numeral of type nat or int. 

520 

521 
 Calls full Presburger arithmetic (by Amine Chaieb) if quantifierfree 

522 
linear arithmetic fails. This takes account of quantifiers and divisibility. 

14731  523 
Presburger arithmetic can also be called explicitly via presburger(_tac). 
13899  524 

525 
* simp's arithmetic capabilities have been enhanced a bit: it now 

526 
takes ~= in premises into account (by performing a case split); 

527 

528 
* simp reduces "m*(n div m) + n mod m" to n, even if the two summands 

529 
are distributed over a sum of terms; 

530 

13735  531 
* New tactic "trans_tac" and method "trans" instantiate 
532 
Provers/linorder.ML for axclasses "order" and "linorder" (predicates 

14731  533 
"<=", "<" and "="). 
534 

535 
* function INCOMPATIBILITIES: Pisets have been redefined and moved from main 

13587  536 
HOL to Library/FuncSet; constant "Fun.op o" is now called "Fun.comp"; 
537 

13443  538 
* 'typedef' command has new option "open" to suppress the set 
539 
definition; 

540 

13522
934fffeb6f38
* Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents:
13518
diff
changeset

541 
* functions Min and Max on finite sets have been introduced (theory 
934fffeb6f38
* Isar: preview of problems to finish 'show' now produce an error
wenzelm
parents:
13518
diff
changeset

542 
Finite_Set); 
13492  543 

13443  544 
* attribute [symmetric] now works for relations as well; it turns 
545 
(x,y) : R^1 into (y,x) : R, and vice versa; 

546 

13613  547 
* induct over a !!quantified statement (say !!x1..xn): 
548 
each "case" automatically performs "fix x1 .. xn" with exactly those names. 

549 

13899  550 
* Map: `empty' is no longer a constant but a syntactic abbreviation for 
551 
%x. None. Warning: empty_def now refers to the previously hidden definition 

552 
of the empty set. 

553 

14018  554 
* Algebra: formalization of classical algebra. Intended as base for 
555 
any algebraic development in Isabelle. Currently covers group theory 

556 
(up to Sylow's theorem) and ring theory (Universal Property of 

557 
Univariate Polynomials). Contributions welcome; 

13960  558 

559 
* GroupTheory: deleted, since its material has been moved to Algebra; 

560 

14731  561 
* Complex: new directory of the complex numbers with numeric constants, 
562 
nonstandard complex numbers, and some complex analysis, standard and 

13966
2160abf7cfe7
removal of the image HOLReal and merging of HOLRealex with HOLComplexex
paulson
parents:
13960
diff
changeset

563 
nonstandard (Jacques Fleuriot); 
2160abf7cfe7
removal of the image HOLReal and merging of HOLRealex with HOLComplexex
paulson
parents:
13960
diff
changeset

564 

2160abf7cfe7
removal of the image HOLReal and merging of HOLRealex with HOLComplexex
paulson
parents:
13960
diff
changeset

565 
* HOLComplex: new image for analysis, replacing HOLReal and HOLHyperreal; 
2160abf7cfe7
removal of the image HOLReal and merging of HOLRealex with HOLComplexex
paulson
parents:
13960
diff
changeset

566 

14731  567 
* Hyperreal: introduced Gauge integration and hyperreal logarithms (Jacques 
13966
2160abf7cfe7
removal of the image HOLReal and merging of HOLRealex with HOLComplexex
paulson
parents:
13960
diff
changeset

568 
Fleuriot); 
13960  569 

13549  570 
* Real/HahnBanach: updated and adapted to locales; 
571 

13995  572 
* NumberTheory: added Gauss's law of quadratic reciprocity (by Avigad, 
573 
Gray and Kramer); 

13872  574 

575 
* UNITY: added the MeierSanders theory of progress sets; 

576 

14011  577 
* MicroJava: bytecode verifier and lightweight bytecode verifier 
578 
as abstract algorithms, instantiated to the JVM; 

579 

14010  580 
* Bali: Java source language formalization. Type system, operational 
581 
semantics, axiomatic semantics. Supported language features: 

582 
classes, interfaces, objects,virtual methods, static methods, 

583 
static/instance fields, arrays, access modifiers, definite 

584 
assignment, exceptions. 

13549  585 

14011  586 

13549  587 
*** ZF *** 
588 

589 
* ZF/Constructible: consistency proof for AC (Gödel's constructible 

590 
universe, etc.); 

591 

13872  592 
* Main ZF: virtually all theories converted to newstyle format; 
13518  593 

13280
306ef3aef61b
* improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents:
13190
diff
changeset

594 

13478  595 
*** ML *** 
596 

597 
* Pure: Tactic.prove provides sane interface for internal proofs; 

598 
omits the infamous "standard" operation, so this is more appropriate 

599 
than prove_goalw_cterm in many situations (e.g. in simprocs); 

600 

601 
* Pure: improved error reporting of simprocs; 

602 

603 
* Provers: Simplifier.simproc(_i) provides sane interface for setting 

604 
up simprocs; 

605 

606 

13953  607 
*** Document preparation *** 
608 

609 
* uses \par instead of \\ for line breaks in theory text. This may 

610 
shift some page breaks in large documents. To get the old behaviour 

611 
use \renewcommand{\isanewline}{\mbox{}\\\mbox{}} in root.tex. 

612 

14731  613 
* minimized dependencies of isabelle.sty and isabellesym.sty on 
13953  614 
other packages 
615 

616 
* \<euro> now needs package babel/greek instead of marvosym (which 

617 
broke \Rightarrow) 

618 

14731  619 
* normal size for \<zero>...\<nine> (uses \mathbf instead of 
13954  620 
textcomp package) 
13953  621 

13280
306ef3aef61b
* improved thms_containing: proper indexing of facts instead of raw
wenzelm
parents:
13190
diff
changeset

622 

14572  623 

12984  624 
New in Isabelle2002 (March 2002) 
625 
 

11474  626 

11572  627 
*** Document preparation *** 
628 

11842
b903d3dabbe2
* greatly simplified document preparation setup, including more
wenzelm
parents:
11817
diff
changeset

629 
* greatly simplified document preparation setup, including more 
b903d3dabbe2
* greatly simplified document preparation setup, including more
wenzelm
parents:
11817
diff
changeset

630 
graceful interpretation of isatool usedir i/d/D options, and more 
b903d3dabbe2
* greatly simplified document preparation setup, including more
wenzelm
parents:
11817
diff
changeset

631 
instructive isatool mkdir; users should basically be able to get 
12899
7d5b690253ee
"isatool usedir D output HOL Test && isatool document Test/output";
wenzelm
parents:
12889
diff
changeset

632 
started with "isatool mkdir HOL Test && isatool make"; alternatively, 
7d5b690253ee
"isatool usedir D output HOL Test && isatool document Test/output";
wenzelm
parents:
12889
diff
changeset

633 
users may run a separate document processing stage manually like this: 
7d5b690253ee
"isatool usedir D output HOL Test && isatool document Test/output";
wenzelm
parents:
12889
diff
changeset

634 
"isatool usedir D output HOL Test && isatool document Test/output"; 
11842
b903d3dabbe2
* greatly simplified document preparation setup, including more
wenzelm
parents:
11817
diff
changeset

635 

b903d3dabbe2
* greatly simplified document preparation setup, including more
wenzelm
parents:
11817
diff
changeset

636 
* theory dependency graph may now be incorporated into documents; 
b903d3dabbe2
* greatly simplified document preparation setup, including more
wenzelm
parents:
11817
diff
changeset

637 
isatool usedir g true will produce session_graph.eps/.pdf for use 
b903d3dabbe2
* greatly simplified document preparation setup, including more
wenzelm
parents:
11817
diff
changeset

638 
with \includegraphics of LaTeX; 
b903d3dabbe2
* greatly simplified document preparation setup, including more
wenzelm
parents:
11817
diff
changeset

639 

11864
371ce685b0ec
* proper spacing of consecutive markup elements, especially text
wenzelm
parents:
11842
diff
changeset

640 
* proper spacing of consecutive markup elements, especially text 
371ce685b0ec
* proper spacing of consecutive markup elements, especially text
wenzelm
parents:
11842
diff
changeset

641 
blocks after section headings; 
371ce685b0ec
* proper spacing of consecutive markup elements, especially text
wenzelm
parents:
11842
diff
changeset

642 

11572  643 
* support bold style (for single symbols only), input syntax is like 
644 
this: "\<^bold>\<alpha>" or "\<^bold>A"; 

645 

11814  646 
* \<bullet> is now output as bold \cdot by default, which looks much 
11572  647 
better in printed text; 
648 

11712
deb8cac87063
* added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents:
11702
diff
changeset

649 
* added default LaTeX bindings for \<tturnstile> and \<TTurnstile>; 
deb8cac87063
* added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents:
11702
diff
changeset

650 
note that these symbols are currently unavailable in Proof General / 
12769  651 
XSymbol; new symbols \<zero>, \<one>, ..., \<nine>, and \<euro>; 
12690  652 

653 
* isatool latex no longer depends on changed TEXINPUTS, instead 

654 
isatool document copies the Isabelle style files to the target 

655 
location; 

11712
deb8cac87063
* added default LaTeX bindings for \<tturnstile> and \<TTurnstile>;
wenzelm
parents:
11702
diff
changeset

656 

11572  657 

11633  658 
*** Isar *** 
659 

12312
f0f06950820d
* Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents:
12280
diff
changeset

660 
* Pure/Provers: improved proof by cases and induction; 
12280  661 
 'case' command admits impromptu naming of parameters (such as 
662 
"case (Suc n)"); 

663 
 'induct' method divinates rule instantiation from the inductive 

664 
claim; no longer requires excessive ?P bindings for proper 

665 
instantiation of cases; 

666 
 'induct' method properly enumerates all possibilities of set/type 

667 
rules; as a consequence facts may be also passed through *type* 

668 
rules without further ado; 

669 
 'induct' method now derives symbolic cases from the *rulified* 

670 
rule (before it used to rulify cases stemming from the internal 

671 
atomized version); this means that the context of a nonatomic 

672 
statement becomes is included in the hypothesis, avoiding the 

673 
slightly cumbersome show "PROP ?case" form; 

674 
 'induct' may now use elimstyle induction rules without chaining 

675 
facts, using ``missing'' premises from the goal state; this allows 

676 
rules stemming from inductive sets to be applied in unstructured 

677 
scripts, while still benefitting from proper handling of nonatomic 

678 
statements; NB: major inductive premises need to be put first, all 

679 
the rest of the goal is passed through the induction; 

680 
 'induct' proper support for mutual induction involving nonatomic 

681 
rule statements (uses the new concept of simultaneous goals, see 

682 
below); 

12853  683 
 append all possible rule selections, but only use the first 
684 
success (no backtracking); 

11995
4a622f5fb164
 'induct' may now use elimstyle induction rules without chaining
wenzelm
parents:
11986
diff
changeset

685 
 removed obsolete "(simplified)" and "(stripped)" options of methods; 
12754
044a59921f3b
Isar: undeclared rule case names default to numbers 1, 2, 3, ...;
wenzelm
parents:
12753
diff
changeset

686 
 undeclared rule case names default to numbers 1, 2, 3, ...; 
044a59921f3b
Isar: undeclared rule case names default to numbers 1, 2, 3, ...;
wenzelm
parents:
12753
diff
changeset

687 
 added 'print_induct_rules' (covered by help item in recent Proof 
044a59921f3b
Isar: undeclared rule case names default to numbers 1, 2, 3, ...;
wenzelm
parents:
12753
diff
changeset

688 
General versions); 
11995
4a622f5fb164
 'induct' may now use elimstyle induction rules without chaining
wenzelm
parents:
11986
diff
changeset

689 
 moved induct/cases attributes to Pure, methods to Provers; 
4a622f5fb164
 'induct' may now use elimstyle induction rules without chaining
wenzelm
parents:
11986
diff
changeset

690 
 generic method setup instantiated for FOL and HOL; 
11986
26b95a6f3f79
 'induct' method now derives symbolic cases from the *rulified* rule
wenzelm
parents:
11965
diff
changeset

691 

12163
04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

692 
* Pure: support multiple simultaneous goal statements, for example 
04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

693 
"have a: A and b: B" (same for 'theorem' etc.); being a pure 
04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

694 
metalevel mechanism, this acts as if several individual goals had 
04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

695 
been stated separately; in particular common proof methods need to be 
04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

696 
repeated in order to cover all claims; note that a single elimination 
04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

697 
step is *not* sufficient to establish the two conjunctions, so this 
04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

698 
fails: 
04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

699 

04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

700 
assume "A & B" then have A and B .. (*".." fails*) 
04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

701 

04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

702 
better use "obtain" in situations as above; alternative refer to 
04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

703 
multistep methods like 'auto', 'simp_all', 'blast+' etc.; 
04c98351f9af
Isar: 'induct' proper support for mutual induction involving
wenzelm
parents:
12159
diff
changeset

704 

12078
4eb8061286e5
* Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents:
12034
diff
changeset

705 
* Pure: proper integration with ``locales''; unlike the original 
12210
2f510d8d8291
* ZF: newstyle theory commands '(co)inductive', '(co)datatype',
wenzelm
parents:
12177
diff
changeset

706 
version by Florian Kammüller, Isar locales package highlevel proof 
12078
4eb8061286e5
* Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents:
12034
diff
changeset

707 
contexts rather than raw logical ones (e.g. we admit to include 
12280  708 
attributes everywhere); operations on locales include merge and 
12964  709 
rename; support for implicit arguments (``structures''); simultaneous 
710 
typeinference over imports and text; see also HOL/ex/Locales.thy for 

711 
some examples; 

12078
4eb8061286e5
* Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents:
12034
diff
changeset

712 

12707
4013be8572c5
* Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents:
12690
diff
changeset

713 
* Pure: the following commands have been ``localized'', supporting a 
4013be8572c5
* Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents:
12690
diff
changeset

714 
target locale specification "(in name)": 'lemma', 'theorem', 
4013be8572c5
* Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents:
12690
diff
changeset

715 
'corollary', 'lemmas', 'theorems', 'declare'; the results will be 
4013be8572c5
* Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents:
12690
diff
changeset

716 
stored both within the locale and at the theory level (exported and 
4013be8572c5
* Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents:
12690
diff
changeset

717 
qualified by the locale name); 
4013be8572c5
* Pure: localized 'lemmas', 'theorems', 'declare';
wenzelm
parents:
12690
diff
changeset

718 

12964  719 
* Pure: theory goals may now be specified in ``long'' form, with 
720 
adhoc contexts consisting of arbitrary locale elements. for example 

721 
``lemma foo: fixes x assumes "A x" shows "B x"'' (local syntax and 

722 
definitions may be given, too); the result is a metalevel rule with 

723 
the context elements being discharged in the obvious way; 

724 

725 
* Pure: new proof command 'using' allows to augment currently used 

726 
facts after a goal statement ('using' is syntactically analogous to 

727 
'apply', but acts on the goal's facts only); this allows chained facts 

728 
to be separated into parts given before and after a claim, as in 

729 
``from a and b have C using d and e <proof>''; 

12078
4eb8061286e5
* Isar/Pure: proper integration with ``locales''; unlike the original
wenzelm
parents:
12034
diff
changeset

730 

11722  731 
* Pure: renamed "antecedent" case to "rule_context"; 
732 

12964  733 
* Pure: new 'judgment' command records explicit information about the 
734 
objectlogic embedding (used by several tools internally); no longer 

735 
use hardwired "Trueprop"; 

736 

11738  737 
* Pure: added 'corollary' command; 
738 

11722  739 
* Pure: fixed 'token_translation' command; 
740 

11899  741 
* Pure: removed obsolete 'exported' attribute; 
742 

11933  743 
* Pure: dummy pattern "_" in is/let is now automatically lifted over 
744 
bound variables: "ALL x. P x > Q x" (is "ALL x. _ > ?C x") 

11899  745 
supersedes more cumbersome ... (is "ALL x. _ x > ?C x"); 
746 

11952
b10f1e8862f4
* Pure: method 'atomize' presents local goal premises as objectlevel
wenzelm
parents:
11937
diff
changeset

747 
* Pure: method 'atomize' presents local goal premises as objectlevel 
b10f1e8862f4
* Pure: method 'atomize' presents local goal premises as objectlevel
wenzelm
parents:
11937
diff
changeset

748 
statements (atomic metalevel propositions); setup controlled via 
b10f1e8862f4
* Pure: method 'atomize' presents local goal premises as objectlevel
wenzelm
parents:
11937
diff
changeset

749 
rewrite rules declarations of 'atomize' attribute; example 
b10f1e8862f4
* Pure: method 'atomize' presents local goal premises as objectlevel
wenzelm
parents:
11937
diff
changeset

750 
application: 'induct' method with proper rule statements in improper 
b10f1e8862f4
* Pure: method 'atomize' presents local goal premises as objectlevel
wenzelm
parents:
11937
diff
changeset

751 
proof *scripts*; 
b10f1e8862f4
* Pure: method 'atomize' presents local goal premises as objectlevel
wenzelm
parents:
11937
diff
changeset

752 

12106
4a8558dbb6a0
* Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents:
12078
diff
changeset

753 
* Pure: emulation of instantiation tactics (rule_tac, cut_tac, etc.) 
4a8558dbb6a0
* Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents:
12078
diff
changeset

754 
now consider the syntactic context of assumptions, giving a better 
4a8558dbb6a0
* Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents:
12078
diff
changeset

755 
chance to get typeinference of the arguments right (this is 
4a8558dbb6a0
* Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents:
12078
diff
changeset

756 
especially important for locales); 
4a8558dbb6a0
* Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac,
wenzelm
parents:
12078
diff
changeset

757 

12312
f0f06950820d
* Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents:
12280
diff
changeset

758 
* Pure: "sorry" no longer requires quick_and_dirty in interactive 
f0f06950820d
* Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents:
12280
diff
changeset

759 
mode; 
f0f06950820d
* Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents:
12280
diff
changeset

760 

12405
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

761 
* Pure/obtain: the formal conclusion "thesis", being marked as 
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

762 
``internal'', may no longer be reference directly in the text; 
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

763 
potential INCOMPATIBILITY, may need to use "?thesis" in rare 
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

764 
situations; 
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

765 

9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

766 
* Pure: generic 'sym' attribute which declares a rule both as pure 
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

767 
'elim?' and for the 'symmetric' operation; 
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

768 

12877
b9635eb8a448
* Isar/Pure: marginal comments ``'' may now occur just anywhere in the text;
wenzelm
parents:
12853
diff
changeset

769 
* Pure: marginal comments ``'' may now occur just anywhere in the 
b9635eb8a448
* Isar/Pure: marginal comments ``'' may now occur just anywhere in the text;
wenzelm
parents:
12853
diff
changeset

770 
text; the fixed correlation with particular command syntax has been 
b9635eb8a448
* Isar/Pure: marginal comments ``'' may now occur just anywhere in the text;
wenzelm
parents:
12853
diff
changeset

771 
discontinued; 
b9635eb8a448
* Isar/Pure: marginal comments ``'' may now occur just anywhere in the text;
wenzelm
parents:
12853
diff
changeset

772 

13023
f869b6822006
Added two paragraphs on "rules" method and code generator.
berghofe
parents:
12984
diff
changeset

773 
* Pure: new method 'rules' is particularly wellsuited for proof 
f869b6822006
Added two paragraphs on "rules" method and code generator.
berghofe
parents:
12984
diff
changeset

774 
search in intuitionistic logic; a bit slower than 'blast' or 'fast', 
f869b6822006
Added two paragraphs on "rules" method and code generator.
berghofe
parents:
12984
diff
changeset

775 
but often produces more compact proof terms with less detours; 
f869b6822006
Added two paragraphs on "rules" method and code generator.
berghofe
parents:
12984
diff
changeset

776 

12364
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

777 
* Pure/Provers/classical: simplified integration with pure rule 
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

778 
attributes and methods; the classical "intro?/elim?/dest?" 
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

779 
declarations coincide with the pure ones; the "rule" method no longer 
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

780 
includes classically swapped intros; "intro" and "elim" methods no 
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

781 
longer pick rules from the context; also got rid of ML declarations 
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

782 
AddXIs/AddXEs/AddXDs; all of this has some potential for 
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

783 
INCOMPATIBILITY; 
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

784 

12405
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

785 
* Provers/classical: attribute 'swapped' produces classical inversions 
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

786 
of introduction rules; 
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

787 

12364
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

788 
* Provers/simplifier: 'simplified' attribute may refer to explicit 
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

789 
rules instead of full simplifier context; 'iff' attribute handles 
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

790 
conditional rules; 
11936
fef099613354
* Provers: 'simplified' attribute may refer to explicit rules instead
wenzelm
parents:
11933
diff
changeset

791 

11745
06cd8c3b5487
* HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
wenzelm
parents:
11738
diff
changeset

792 
* HOL: 'typedef' now allows alternative names for Rep/Abs morphisms; 
06cd8c3b5487
* HOL: 'typedef' now allows alternative names for Rep/Abs morphisms;
wenzelm
parents:
11738
diff
changeset

793 

11690  794 
* HOL: 'recdef' now fails on unfinished automated proofs, use 
11633  795 
"(permissive)" option to recover old behavior; 
796 

11933  797 
* HOL: 'inductive' no longer features separate (collective) attributes 
798 
for 'intros' (was found too confusing); 

799 

12405
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

800 
* HOL: properly declared induction rules less_induct and 
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

801 
wf_induct_rule; 
9b16f99fd7b9
* Pure/obtain: "thesis" now internal (use ?thesis);
wenzelm
parents:
12364
diff
changeset

802 

11788
60054fee3c16
canonical 'cases'/'induct' rules for ntuples (n=3..7)
kleing
parents:
11745
diff
changeset

803 

11474  804 
*** HOL *** 
805 

11702  806 
* HOL: moved over to sane numeral syntax; the new policy is as 
807 
follows: 

808 

809 
 0 and 1 are polymorphic constants, which are defined on any 

810 
numeric type (nat, int, real etc.); 

811 

812 
 2, 3, 4, ... and 1, 2, 3, ... are polymorphic numerals, based 

813 
binary representation internally; 

814 

815 
 type nat has special constructor Suc, and generally prefers Suc 0 

816 
over 1::nat and Suc (Suc 0) over 2::nat; 

817 

12364
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

818 
This change may cause significant problems of INCOMPATIBILITY; here 
108cdda23ab3
* Pure/Provers/classical: simplified integration with pure rule
wenzelm
parents:
12335
diff
changeset

819 
are some hints on converting existing sources: 
11702  820 

821 
 due to the new "num" token, "0" and "1" etc. are now atomic 

822 
entities, so expressions involving "" (unary or binary minus) need 

823 
to be spaced properly; 

824 

825 
 existing occurrences of "1" may need to be constraint "1::nat" or 

826 
even replaced by Suc 0; similar for old "2"; 

827 

828 
 replace "#nnn" by "nnn", and "#nnn" by "nnn"; 

829 

830 
 remove all special provisions on numerals in proofs; 

831 

13042  832 
* HOL: simp rules nat_number expand numerals on nat to Suc/0 
12837  833 
representation (depends on bin_arith_simps in the default context); 
834 

12736  835 
* HOL: symbolic syntax for x^2 (numeral 2); 
836 

12335
db4d5f498742
* HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents:
12312
diff
changeset

837 
* HOL: the class of all HOL types is now called "type" rather than 
db4d5f498742
* HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents:
12312
diff
changeset

838 
"term"; INCOMPATIBILITY, need to adapt references to this type class 
db4d5f498742
* HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents:
12312
diff
changeset

839 
in axclass/classes, instance/arities, and (usually rare) occurrences 
db4d5f498742
* HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents:
12312
diff
changeset

840 
in typings (of consts etc.); internally the class is called 
db4d5f498742
* HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents:
12312
diff
changeset

841 
"HOL.type", ML programs should refer to HOLogic.typeS; 
db4d5f498742
* HOL: the class of all HOL types is now called "type" rather than
wenzelm
parents:
12312
diff
changeset

842 

12280  843 
* HOL/record package improvements: 
844 
 new derived operations "fields" to build a partial record section, 

845 
"extend" to promote a fixed record to a record scheme, and 

846 
"truncate" for the reverse; cf. theorems "xxx.defs", which are *not* 

847 
declared as simp by default; 

12587
3f3d2ffb5df5
HOL/record: shared operations ("more", "fields", etc.) now need to be
wenzelm
parents:
12564
diff
changeset

848 
 shared operations ("more", "fields", etc.) now need to be always 
3f3d2ffb5df5
HOL/record: shared operations ("more", "fields", etc.) now need to be
wenzelm
parents:
12564
diff
changeset

849 
qualified)  potential INCOMPATIBILITY; 
12280  850 
 removed "make_scheme" operations (use "make" with "extend")  
851 
INCOMPATIBILITY; 

11937  852 
 removed "more" class (simply use "term")  INCOMPATIBILITY; 
12253  853 
 provides cases/induct rules for use with corresponding Isar 
854 
methods (for concrete records, record schemes, concrete more 

12280  855 
parts, and schematic more parts  in that order); 
11930  856 
 internal definitions directly based on a lightweight abstract 
857 
theory of product types over typedef rather than datatype; 

858 

13023
f869b6822006
Added two paragraphs on "rules" method and code generator.
berghofe
parents:
12984
diff
changeset

859 
* HOL: generic code generator for generating executable ML code from 
f869b6822006
Added two paragraphs on "rules" method and code generator.
berghofe
parents:
12984
diff
changeset

860 
specifications; specific support for HOL constructs such as inductive 
f869b6822006
Added two paragraphs on "rules" method and code generator.
berghofe
parents:
12984
diff
changeset

861 
datatypes and sets, as well as recursive functions; can be invoked 
f869b6822006
Added two paragraphs on "rules" method and code generator.
berghofe
parents:
12984
diff
changeset

862 
via 'generate_code' theory section; 
f869b6822006
Added two paragraphs on "rules" method and code generator.
berghofe
parents:
12984
diff
changeset

863 

11933  864 
* HOL: canonical cases/induct rules for ntuples (n = 3..7); 
865 

13824  866 
* HOL: consolidated and renamed several theories. In particular: 
14731  867 
Ord.thy has been absorbed into HOL.thy 
868 
String.thy has been absorbed into List.thy 

869 

11802
1d5f5d2427d2
* HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents:
11797
diff
changeset

870 
* HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A" 
1d5f5d2427d2
* HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents:
11797
diff
changeset

871 
(beware of argument permutation!); 
1d5f5d2427d2
* HOL: concrete setsum syntax "\<Sum>i:A. b" == "setsum (%i. b) A"
wenzelm
parents:
11797
diff
changeset

872 

11657  873 
* HOL: linorder_less_split superseded by linorder_cases; 
874 

12917  875 
* HOL/List: "nodups" renamed to "distinct"; 
12889  876 

11633  877 
* HOL: added "The" definite description operator; move Hilbert's "Eps" 
13824  878 
to peripheral theory "Hilbert_Choice"; some INCOMPATIBILITIES: 
879 
 Ex_def has changed, now need to use some_eq_ex 

11437  880 

11572  881 
* HOL: made split_all_tac safe; EXISTING PROOFS MAY FAIL OR LOOP, so 
882 
in this (rare) case use: 

883 

884 
delSWrapper "split_all_tac" 

885 
addSbefore ("unsafe_split_all_tac", unsafe_split_all_tac) 

886 

887 
* HOL: added safe wrapper "split_conv_tac" to claset; EXISTING PROOFS 

11474  888 
MAY FAIL; 
11361  889 

11572  890 
* HOL: introduced f^n = f o ... o f; warning: due to the limits of 
891 
Isabelle's type classes, ^ on functions and relations has too general 

892 
a domain, namely ('a * 'b) set and 'a => 'b; this means that it may be 

893 
necessary to attach explicit type constraints; 

11307  894 

12917  895 
* HOL/Relation: the prefix name of the infix "O" has been changed from 
896 
"comp" to "rel_comp"; INCOMPATIBILITY: a few theorems have been 

897 
renamed accordingly (eg "compI" > "rel_compI"). 

12489  898 

11487
95071c9e85a3
* HOL: syntax translations now work properly with numerals and records
wenzelm
parents:
11475
diff
changeset

899 
* HOL: syntax translations now work properly with numerals and records 
95071c9e85a3
* HOL: syntax translations now work properly with numerals and records
wenzelm
parents:
11475
diff
changeset

900 
expressions; 
11474  901 

12457
cbfc53e45476
* HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents:
12405
diff
changeset

902 
* HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead 
cbfc53e45476
* HOL: bounded abstraction now uses syntax "%" / "\<lambda>" instead
wenzelm
parents:
12405
diff
changeset

903 
of "lam"  INCOMPATIBILITY; 
11474  904 

11933  905 
* HOL: got rid of some global declarations (potential INCOMPATIBILITY 
906 
for ML tools): const "()" renamed "Product_Type.Unity", type "unit" 

907 
renamed "Product_Type.unit"; 

11611  908 

12564  909 
* HOL: renamed rtrancl_into_rtrancl2 to converse_rtrancl_into_rtrancl 
910 

12924  911 
* HOL: removed obsolete theorem "optionE" (use "option.exhaust", or 
912 
the "cases" method); 

913 

12597
14822e4436bf
HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents:
12587
diff
changeset

914 
* HOL/GroupTheory: group theory examples including Sylow's theorem (by 
14822e4436bf
HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents:
12587
diff
changeset

915 
Florian Kammüller); 
14822e4436bf
HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents:
12587
diff
changeset

916 

12608
2df381faa787
* ZF/IMP: updated and converted to newstyle theory format;
wenzelm
parents:
12597
diff
changeset

917 
* HOL/IMP: updated and converted to newstyle theory format; several 
2df381faa787
* ZF/IMP: updated and converted to newstyle theory format;
wenzelm
parents:
12597
diff
changeset

918 
parts turned into readable document, with proper Isar proof texts and 
2df381faa787
* ZF/IMP: updated and converted to newstyle theory format;
wenzelm
parents:
12597
diff
changeset

919 
some explanations (by Gerwin Klein); 
12597
14822e4436bf
HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents:
12587
diff
changeset

920 

12734  921 
* HOLReal: added Complex_Numbers (by Gertrud Bauer); 
922 

12690  923 
* HOLHyperreal is now a logic image; 
924 

11611  925 

12022
9c3377b133c0
HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents:
11995
diff
changeset

926 
*** HOLCF *** 
9c3377b133c0
HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents:
11995
diff
changeset

927 

12622  928 
* Isar: consts/constdefs supports mixfix syntax for continuous 
929 
operations; 

930 

931 
* Isar: domain package adapted to newstyle theory format, e.g. see 

932 
HOLCF/ex/Dnat.thy; 

933 

934 
* theory Lift: proper use of rep_datatype lift instead of ML hacks  

12280  935 
potential INCOMPATIBILITY; now use plain induct_tac instead of former 
936 
lift.induct_tac, always use UU instead of Undef; 

12022
9c3377b133c0
HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents:
11995
diff
changeset

937 

12597
14822e4436bf
HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents:
12587
diff
changeset

938 
* HOLCF/IMP: updated and converted to newstyle theory; 
14822e4436bf
HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents:
12587
diff
changeset

939 

12022
9c3377b133c0
HOLCF: proper rep_datatype lift (see theory Lift); use plain induct_tac
wenzelm
parents:
11995
diff
changeset

940 

11474  941 
*** ZF *** 
942 

12622  943 
* Isar: proper integration of logicspecific tools and packages, 
944 
including theory commands '(co)inductive', '(co)datatype', 

945 
'rep_datatype', 'inductive_cases', as well as methods 'ind_cases', 

946 
'induct_tac', 'case_tac', and 'typecheck' (with attribute 'TC'); 

947 

948 
* theory Main no longer includes AC; for the Axiom of Choice, base 

949 
your theory on Main_ZFC; 

950 

951 
* the integer library now covers quotients and remainders, with many 

952 
laws relating division to addition, multiplication, etc.; 

12563  953 

12280  954 
* ZF/UNITY: Chandy and Misra's UNITY is now available in ZF, giving a 
955 
typeless version of the formalism; 

956 

13025  957 
* ZF/AC, Coind, IMP, Resid: updated and converted to newstyle theory 
958 
format; 

12608
2df381faa787
* ZF/IMP: updated and converted to newstyle theory format;
wenzelm
parents:
12597
diff
changeset

959 

12280  960 
* ZF/Induct: new directory for examples of inductive definitions, 
12608
2df381faa787
* ZF/IMP: updated and converted to newstyle theory format;
wenzelm
parents:
12597
diff
changeset

961 
including theory Multiset for multiset orderings; converted to 
2df381faa787
* ZF/IMP: updated and converted to newstyle theory format;
wenzelm
parents:
12597
diff
changeset

962 
newstyle theory format; 
12177
b1c16d685a99
* ZF: newstyle theory commands 'inductive', 'inductive_cases', and
wenzelm
parents:
12163
diff
changeset

963 

13025  964 
* ZF: many new theorems about lists, ordinals, etc.; 
12850  965 

11474  966 

967 
*** General *** 

968 

12280  969 
* Pure/kernel: metalevel proof terms (by Stefan Berghofer); reference 
970 
variable proof controls level of detail: 0 = no proofs (only oracle 

971 
dependencies), 1 = lemma dependencies, 2 = compact proof terms; see 

972 
also ref manual for further ML interfaces; 

973 

974 
* Pure/axclass: removed obsolete ML interface 

975 
goal_subclass/goal_arity; 

976 

977 
* Pure/syntax: new token syntax "num" for plain numerals (without "#" 

978 
of "xnum"); potential INCOMPATIBILITY, since 0, 1 etc. are now 

979 
separate tokens, so expressions involving minus need to be spaced 

980 
properly; 

981 

12312
f0f06950820d
* Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents:
12280
diff
changeset

982 
* Pure/syntax: support nonoriented infixes, using keyword "infix" 
f0f06950820d
* Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents:
12280
diff
changeset

983 
rather than "infixl" or "infixr"; 
f0f06950820d
* Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents:
12280
diff
changeset

984 

f0f06950820d
* Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents:
12280
diff
changeset

985 
* Pure/syntax: concrete syntax for dummy type variables admits genuine 
f0f06950820d
* Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents:
12280
diff
changeset

986 
sort constraint specifications in type inference; e.g. "x::_::foo" 
f0f06950820d
* Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents:
12280
diff
changeset

987 
ensures that the type of "x" is of sort "foo" (but not necessarily a 
f0f06950820d
* Isar/Pure: "sorry" no longer requires quick_and_dirty in interactive mode;
wenzelm
parents:
12280
diff
changeset

988 
type variable); 
12280  989 

990 
* Pure/syntax: print modes "type_brackets" and "no_type_brackets" 

991 
control output of nested => (types); the default behavior is 

992 
"type_brackets"; 

993 

994 
* Pure/syntax: builtin parse translation for "_constify" turns valued 

11817  995 
tokens into AST constants; 
11474  996 

12280  997 
* Pure/syntax: prefer later declarations of translations and print 
998 
translation functions; potential INCOMPATIBILITY: need to reverse 

999 
multiple declarations for same syntax element constant; 

1000 

12832
c31b44286a8a
* Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents:
12777
diff
changeset

1001 
* Pure/show_hyps reset by default (in accordance to existing Isar 
c31b44286a8a
* Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents:
12777
diff
changeset

1002 
practice); 
c31b44286a8a
* Pure/show_hyps reset by default (in accordance to existing Isar practice);
wenzelm
parents:
12777
diff
changeset

1003 

12280  1004 
* Provers/classical: renamed addaltern to addafter, addSaltern to 
1005 
addSafter; 

1006 

1007 
* Provers/clasimp: ``iff'' declarations now handle conditional rules 

1008 
as well; 

12253  1009 

12538  1010 
* system: tested support for MacOS X; should be able to get Isabelle + 
1011 
Proof General to work in a plain Terminal after installing Poly/ML 

1012 
(e.g. from the Isabelle distribution area) and GNU bash alone 

1013 
(e.g. from http://www.apple.com); full X11, XEmacs and XSymbol 

1014 
support requires further installations, e.g. from 

1015 
http://fink.sourceforge.net/); 

1016 

12280  1017 
* system: support Poly/ML 4.1.1 (able to manage larger heaps); 
11551  1018 

12753
3a62df7ae926
* system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents:
12736
diff
changeset

1019 
* system: reduced base memory usage by Poly/ML (approx. 20 MB instead 
3a62df7ae926
* system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents:
12736
diff
changeset

1020 
of 40 MB), cf. ML_OPTIONS; 
3a62df7ae926
* system: reduced base memory usage by Poly/ML (approx. 20 MB instead
wenzelm
parents:
12736
diff
changeset

1021 

11633  1022 
* system: Proof General keywords specification is now part of the 
1023 
Isabelle distribution (see etc/isarkeywords.el); 

1024 

12728  1025 
* system: support for persistent Proof General sessions (refrain from 
1026 
outdating all loaded theories on startup); user may create writable 

1027 
logic images like this: ``isabelle q HOL Test''; 

12597
14822e4436bf
HOL/IMP and HOLCF/IMP updated and converted (Gerwin Klein);
wenzelm
parents:
12587
diff
changeset

1028 

11551  1029 
* system: smart selection of Isabelle process versus Isabelle 
11572  1030 
interface, accommodates caseinsensitive file systems (e.g. HFS+); may 
1031 
run both "isabelle" and "Isabelle" even if file names are badly 

1032 
damaged (executable inspects the case of the first letter of its own 

1033 
name); added separate "isabelleprocess" and "isabelleinterface"; 

11551  1034 

12472  1035 
* system: refrain from any attempt at filtering input streams; no 
1036 
longer support ``8bit'' encoding of old isabelle font, instead proper 

1037 
isolatin characters may now be used; the related isatools 

1038 
"symbolinput" and "nonascii" have disappeared as well; 

1039 

1040 
* system: removed old "xterm" interface (the print modes "xterm" and 

1041 
"xterm_color" are still available for direct use in a suitable 

1042 
terminal); 

1043 

11314  1044 

11169
98c2f741e32b
made split_all_tac safe introducing safe_full_simp_tac, EXISTING PROOFS MAY FAIL
oheimb
parents:
11130
diff
changeset

1045 

11062  1046 
New in Isabelle992 (February 2001) 
1047 
 

1048 

10224  1049 
*** Overview of INCOMPATIBILITIES *** 
1050 

11241  1051 
* HOL: please note that theories in the Library and elsewhere often use the 
1052 
newstyle (Isar) format; to refer to their theorems in an ML script you must 

12622  1053 
bind them to ML identifers by e.g. val thm_name = thm "thm_name"; 
11241  1054 

11043
2e3bbac8763b
HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents:
11016
diff
changeset

1055 
* HOL: inductive package no longer splits induction rule aggressively, 
2e3bbac8763b
HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents:
11016
diff
changeset

1056 
but only as far as specified by the introductions given; the old 
11130  1057 
format may be recovered via ML function complete_split_rule or attribute 
11043
2e3bbac8763b
HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents:
11016
diff
changeset

1058 
'split_rule (complete)'; 
2e3bbac8763b
HOL: inductive package no longer splits induction rule aggressively,
wenzelm
parents:
11016
diff
changeset

1059 

10998  1060 
* HOL: induct renamed to lfp_induct, lfp_Tarski to lfp_unfold, 
1061 
gfp_Tarski to gfp_unfold; 

10224  1062 

10288  1063 
* HOL: contrapos, contrapos2 renamed to contrapos_nn, contrapos_pp; 
1064 

10858  1065 
* HOL: infix "dvd" now has priority 50 rather than 70 (because it is a 
1066 
relation); infix "^^" has been renamed "``"; infix "``" has been 

1067 
renamed "`"; "univalent" has been renamed "single_valued"; 

10793  1068 

10998  1069 
* HOL/Real: "rinv" and "hrinv" replaced by overloaded "inverse" 
1070 
operation; 

1071 

10868  1072 
* HOLCF: infix "`" has been renamed "$"; the symbol syntax is \<cdot>; 
10856  1073 

10391  1074 
* Isar: 'obtain' no longer declares "that" fact as simp/intro; 
1075 

10401
58bb50f69497
* Isar/HOL: method 'induct' now handles nonatomic goals; as a
wenzelm
parents:
10391
diff
changeset

1076 
* Isar/HOL: method 'induct' now handles nonatomic goals; as a 
58bb50f69497
* Isar/HOL: method 'induct' now handles nonatomic goals; as a
wenzelm
parents:
10391
diff
changeset

1077 
consequence, it is no longer monotonic wrt. the local goal context 
58bb50f69497
* Isar/HOL: method 'induct' now handles nonatomic goals; as a
wenzelm
parents:
10391
diff
changeset

1078 
(which is now passed through the inductive cases); 
58bb50f69497
* Isar/HOL: method 'induct' now handles nonatomic goals; as a
wenzelm
parents:
10391
diff
changeset

1079 

10976
0e7cf6f9fa29
* Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents:
10966
diff
changeset

1080 
* Document preparation: renamed standard symbols \<ll> to \<lless> and 
0e7cf6f9fa29
* Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents:
10966
diff
changeset

1081 
\<gg> to \<ggreater>; 
0e7cf6f9fa29
* Document preparation: renamed standard symbols \<ll> to \<lless> and
wenzelm
parents:
10966
diff
changeset

1082 

10224  1083 

10245
87771e2f49fe
* HOL/Library: a collection of generic theories to be used together
wenzelm
parents:
10224
diff
changeset

1084 
*** Document preparation *** 
87771e2f49fe
* HOL/Library: a collection of generic theories to be used together
wenzelm
parents:
10224
diff
changeset

1085 

10858  1086 
* \isabellestyle{NAME} selects version of Isabelle output (currently 
1087 
available: are "it" for near mathmode beststyle output, "sl" for 

1088 
slanted text style, and "tt" for plain typewriter; if no 

1089 
\isabellestyle command is given, output is according to slanted 

1090 
typewriter); 

1091 

10322
df38c61bf541
* support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents:
10306
diff
changeset

1092 
* support sub/super scripts (for single symbols only), input syntax is 
df38c61bf541
* support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents:
10306
diff
changeset

1093 
like this: "A\<^sup>*" or "A\<^sup>\<star>"; 
df38c61bf541
* support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents:
10306
diff
changeset

1094 

10858  1095 
* some more standard symbols; see Appendix A of the system manual for 
11062  1096 
the complete list of symbols defined in isabellesym.sty; 
10858  1097 

10998  1098 
* improved isabelle style files; more abstract symbol implementation 
1099 
(should now use \isamath{...} and \isatext{...} in custom symbol 

1100 
definitions); 

1101 

10634  1102 
* antiquotation @{goals} and @{subgoals} for output of *dynamic* goals 
1103 
state; Note that presentation of goal states does not conform to 

1104 
actual humanreadable proof documents. Please do not include goal 

1105 
states into document output unless you really know what you are doing! 

10322
df38c61bf541
* support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents:
10306
diff
changeset

1106 

11062  1107 
* proper indentation of antiquoted output with proportional LaTeX 
1108 
fonts; 

10862  1109 

11050
ac5709ac50b9
* no_document ML operator temporarily disables LaTeX document
wenzelm
parents:
11043
diff
changeset

1110 
* no_document ML operator temporarily disables LaTeX document 
ac5709ac50b9
* no_document ML operator temporarily disables LaTeX document
wenzelm
parents:
11043
diff
changeset

1111 
generation; 
ac5709ac50b9
* no_document ML operator temporarily disables LaTeX document
wenzelm
parents:
11043
diff
changeset

1112 

11062  1113 
* isatool unsymbolize tunes sources for plain ASCII communication; 
1114 

10322
df38c61bf541
* support sub/super scripts (for single symbols only), input syntax is
wenzelm
parents:
10306
diff
changeset

1115 

10306
b0ab988a27a9
* HOL: default proof step now includes 'intro_classes';
wenzelm
parents:
10288
diff
changeset

1116 
*** Isar *** 
b0ab988a27a9
* HOL: default proof step now includes 'intro_classes';
wenzelm
parents:
10288
diff
changeset

1117 

10547  1118 
* Pure: Isar now suffers initial goal statements to contain unbound 
1119 
schematic variables (this does not conform to actual readable proof 

1120 
documents, due to unpredictable outcome and noncompositional proof 

1121 
checking); users who know what they are doing may use schematic goals 

1122 
for Prologstyle synthesis of proven results; 

1123 

10391  1124 
* Pure: assumption method (an implicit finishing) now handles actual 
1125 
rules as well; 

1126 

1127 
* Pure: improved 'obtain'  moved to Pure, insert "that" into 

1128 
initial goal, declare "that" only as Pure intro (only for single 

1129 
steps); the "that" rule assumption may now be involved in implicit 

1130 
finishing, thus ".." becomes a feasible for trivial obtains; 

1131 

1132 
* Pure: default proof step now includes 'intro_classes'; thus trivial 

1133 
instance proofs may be performed by ".."; 

1134 

1135 
* Pure: ?thesis / ?this / "..." now work for pure metalevel 

1136 
statements as well; 

10306
b0ab988a27a9
* HOL: default proof step now includes 'intro_classes';
wenzelm
parents:
10288
diff
changeset

1137 

11097  1138 
* Pure: more robust selection of calculational rules; 
1139 

10858  1140 
* Pure: the builtin notion of 'finished' goal now includes the ==refl 
1141 
rule (as well as the assumption rule); 

1142 

1143 
* Pure: 'thm_deps' command visualizes dependencies of theorems and 

1144 
lemmas, using the graph browser tool; 

1145 

10944  1146 
* Pure: predict failure of "show" in interactive mode; 
1147 

11016
8f8ba41a5e7a
* Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents:
10998
diff
changeset

1148 
* Pure: 'thms_containing' now takes actual terms as arguments; 
8f8ba41a5e7a
* Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents:
10998
diff
changeset

1149 

10401
58bb50f69497
* Isar/HOL: method 'induct' now handles nonatomic goals; as a
wenzelm
parents:
10391
diff
changeset

1150 
* HOL: improved method 'induct'  now handles nonatomic goals 
58bb50f69497
* Isar/HOL: method 'induct' now handles nonatomic goals; as a
wenzelm
parents:
10391
diff
changeset

1151 
(potential INCOMPATIBILITY); tuned error handling; 
58bb50f69497
* Isar/HOL: method 'induct' now handles nonatomic goals; as a
wenzelm
parents:
10391
diff
changeset

1152 

10557  1153 
* HOL: cases and induct rules now provide explicit hints about the 
10547  1154 
number of facts to be consumed (0 for "type" and 1 for "set" rules); 
1155 
any remaining facts are inserted into the goal verbatim; 

1156 

10858  1157 
* HOL: local contexts (aka cases) may now contain term bindings as 
1158 
well; the 'cases' and 'induct' methods new provide a ?case binding for 

1159 
the result to be shown in each case; 

1160 

10770  1161 
* HOL: added 'recdef_tc' command; 
1162 

11016
8f8ba41a5e7a
* Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents:
10998
diff
changeset

1163 
* isatool convert assists in eliminating legacy ML scripts; 
8f8ba41a5e7a
* Pure: 'thms_containing' now takes actual terms as arguments;
wenzelm
parents:
10998
diff
changeset

1164 

10306
b0ab988a27a9
* HOL: default proof step now includes 'intro_classes';
wenzelm
parents:
10288
diff
changeset

1165 

10245
87771e2f49fe
* HOL/Library: a collection of generic theories to be used together
wenzelm
parents:
10224
diff
changeset

1166 
*** HOL *** 
87771e2f49fe
* HOL/Library: a collection of generic theories to be used together
wenzelm
parents:
10224
diff
changeset

1167 

87771e2f49fe
* HOL/Library: a collection of generic theories to be used together
wenzelm
parents:
10224
diff
changeset

1168 
* HOL/Library: a collection of generic theories to be used together 
87771e2f49fe
* HOL/Library: a collection of generic theories to be used together
wenzelm
parents:
10224
diff
changeset

1169 
with main HOL; the theory loader path already includes this directory 
87771e2f49fe
* HOL/Library: a collection of generic theories to be used together
wenzelm
parents:
10224
diff
changeset

1170 
by default; the following existing theories have been moved here: 
87771e2f49fe
* HOL/Library: a collection of generic theories to be used together
wenzelm
parents:
10224
diff
changeset

1171 
HOL/Induct/Multiset, HOL/Induct/Acc (as Accessible_Part), HOL/While 
10337  1172 
(as While_Combinator), HOL/Lex/Prefix (as List_Prefix); 
10245
87771e2f49fe
* HOL/Library: a collection of generic theories to be used together
wenzelm
parents:
10224
diff
changeset

1173 

10966  1174 
* HOL/Unix: "Some aspects of Unix filesystem security", a typical 
1175 
modelling and verification task performed in Isabelle/HOL + 

1176 
Isabelle/Isar + Isabelle document preparation (by Markus Wenzel). 

1177 

11094  1178 
* HOL/Algebra: special summation operator SUM no longer exists, it has 
1179 
been replaced by setsum; infix 'assoc' now has priority 50 (like 

1180 
'dvd'); axiom 'one_not_zero' has been moved from axclass 'ring' to 

1181 
'domain', this makes the theory consistent with mathematical 

1182 
literature; 

1183 

10514  1184 
* HOL basics: added overloaded operations "inverse" and "divide" 
10726  1185 
(infix "/"), syntax for generic "abs" operation, generic summation 
11094  1186 
operator \<Sum>; 
10452
abeefb0a79ae
* added overloaded operations "inverse" and "divide" (infix "/");
wenzelm
parents:
10428
diff
changeset

1187 

10391  1188 
* HOL/typedef: simplified package, provide more useful rules (see also 
1189 
HOL/subset.thy); 

1190 

10915
6b66a8a530ce
* HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents:
10868
diff
changeset

1191 
* HOL/datatype: induction rule for arbitrarily branching datatypes is 
6b66a8a530ce
* HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents:
10868
diff
changeset

1192 
now expressed as a proper nested rule (oldstyle tactic scripts may 
6b66a8a530ce
* HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents:
10868
diff
changeset

1193 
require atomize_strip_tac to cope with nonatomic premises); 
6b66a8a530ce
* HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents:
10868
diff
changeset

1194 

6b66a8a530ce
* HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents:
10868
diff
changeset

1195 
* HOL: renamed theory "Prod" to "Product_Type", renamed "split" rule 
6b66a8a530ce
* HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents:
10868
diff
changeset

1196 
to "split_conv" (old name still available for compatibility); 
6b66a8a530ce
* HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents:
10868
diff
changeset

1197 

6b66a8a530ce
* HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents:
10868
diff
changeset

1198 
* HOL: improved concrete syntax for strings (e.g. allows translation 
6b66a8a530ce
* HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents:
10868
diff
changeset

1199 
rules with string literals); 
6b66a8a530ce
* HOL/datatype: induction rule for arbitrarily branching datatypes is
wenzelm
parents:
10868
diff
changeset

1200 

12245  1201 
* HOLRealHyperreal: this extends HOLReal with the hyperreals 
1202 
and Fleuriot's mechanization of analysis, including the transcendental 

1203 
functions for the reals; 

10756  1204 

11094  1205 
* HOL/Real, HOL/Hyperreal: improved arithmetic simplification; 
10391  1206 

10858  1207 

10474  1208 
*** CTT *** 
1209 

10547  1210 
* CTT: xsymbol support for Pi, Sigma, >, : (membership); note that 
1211 
"lam" is displayed as TWO lambdasymbols 

10474  1212 

10547  1213 
* CTT: theory Main now available, containing everything (that is, Bool 
1214 
and Arith); 

1215 

10474  1216 

10391  1217 
*** General *** 
1218 

10547  1219 
* Pure: the Simplifier has been implemented properly as a derived rule 
1220 
outside of the actual kernel (at last!); the overall performance 

1221 
penalty in practical applications is about 50%, while reliability of 

1222 
the Isabelle inference kernel has been greatly improved; 

1223 

11112  1224 
* print modes "brackets" and "no_brackets" control output of nested => 
1225 
(types) and ==> (props); the default behaviour is "brackets"; 

1226 

10391  1227 
* Provers: fast_tac (and friends) now handle actual objectlogic rules 
1228 
as assumptions as well; 

1229 

11124  1230 
* system: support Poly/ML 4.0; 
1231 

1232 
* system: isatool install handles KDE version 1 or 2; 

1233 

10391  1234 

10245
87771e2f49fe
* HOL/Library: a collection of generic theories to be used together
wenzelm
parents:
10224
diff
changeset

1235 

10103  1236 
New in Isabelle991 (October 2000) 
1237 
 

8015  1238 

10003  1239 
*** Overview of INCOMPATIBILITIES *** 
8014  1240 

8848  1241 
* HOL: simplification of natural numbers is much changed; to partly 
1242 
recover the old behaviour (e.g. to prevent n+n rewriting to #2*n) 

1243 
issue the following ML commands: 

1244 

1245 
Delsimprocs Nat_Numeral_Simprocs.cancel_numerals; 

1246 
Delsimprocs [Nat_Numeral_Simprocs.combine_numerals]; 

8788  1247 

10129  1248 
* HOL: simplification no longer dives into caseexpressions; this is 
1249 
controlled by "t.weak_case_cong" for each datatype t; 

10003  1250 

1251 
* HOL: nat_less_induct renamed to less_induct; 

1252 

1253 
* HOL: systematic renaming of the SOME (Eps) rules, may use isatool 

1254 
fixsome to patch .thy and .ML sources automatically; 

8967  1255 

10003  1256 
select_equality > some_equality 
1257 
select_eq_Ex > some_eq_ex 

1258 
selectI2EX > someI2_ex 

1259 
selectI2 > someI2 

1260 
selectI > someI 

1261 
select1_equality > some1_equality 

1262 
Eps_sym_eq > some_sym_eq_trivial 

1263 
Eps_eq > some_eq_trivial 

1264 

1265 
* HOL: exhaust_tac on datatypes superceded by new generic case_tac; 

1266 

1267 
* HOL: removed obsolete theorem binding expand_if (refer to split_if 

1268 
instead); 

1269 

1270 
* HOL: the recursion equations generated by 'recdef' are now called 

1271 
f.simps instead of f.rules; 

1272 

1273 
* HOL: qed_spec_mp now also handles bounded ALL as well; 

1274 

1275 
* HOL: 0 is now overloaded, so the type constraint ":: nat" may 

1276 
sometimes be needed; 

1277 

1278 
* HOL: the constant for "f``x" is now "image" rather than "op ``"; 

8014  1279 

10065  1280 
* HOL: the constant for "f``x" is now "vimage" rather than "op ``"; 
1281 

9330
6861e3b00155
HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents:
9288
diff
changeset

1282 
* HOL: the disjoint sum is now "<+>" instead of "Plus"; the cartesian 
6861e3b00155
HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents:
9288
diff
changeset

1283 
product is now "<*>" instead of "Times"; the lexicographic product is 
6861e3b00155
HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents:
9288
diff
changeset

1284 
now "<*lex*>" instead of "**"; 
8705  1285 

10003  1286 
* HOL: theory Sexp is now in HOL/Induct examples (it used to be part 
1287 
of main HOL, but was unused); better use HOL's datatype package; 

9971  1288 

10137
d1c2bef01e2f
removed "symbols" syntax for constant "override";
wenzelm
parents:
10129
diff
changeset

1289 
* HOL: removed "symbols" syntax for constant "override" of theory Map; 
d1c2bef01e2f
removed "symbols" syntax for constant "override";
wenzelm
parents:
10129
diff
changeset

1290 
the old syntax may be recovered as follows: 
d1c2bef01e2f
removed "symbols" syntax for constant "override";
wenzelm
parents:
10129
diff
changeset

1291 

d1c2bef01e2f
removed "symbols" syntax for constant "override";
wenzelm
parents:
10129
diff
changeset

1292 
syntax (symbols) 
d1c2bef01e2f
removed "symbols" syntax for constant "override";
wenzelm
parents:
10129
diff
changeset

1293 
override :: "('a ~=> 'b) => ('a ~=> 'b) => ('a ~=> 'b)" 
d1c2bef01e2f
removed "symbols" syntax for constant "override";
wenzelm
parents:
10129
diff
changeset

1294 
(infixl "\\<oplus>" 100) 
d1c2bef01e2f
removed "symbols" syntax for constant "override";
wenzelm
parents:
10129
diff
changeset

1295 

8848  1296 
* HOL/Real: "rabs" replaced by overloaded "abs" function; 
1297 

8887
c0c583ce0b0b
* HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents:
8848
diff
changeset

1298 
* HOL/ML: even fewer consts are declared as global (see theories Ord, 
c0c583ce0b0b
* HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents:
8848
diff
changeset

1299 
Lfp, Gfp, WF); this only affects ML packages that refer to const names 
c0c583ce0b0b
* HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents:
8848
diff
changeset

1300 
internally; 
c0c583ce0b0b
* HOL/ML: even fewer consts are declared as global (see theories Ord,
wenzelm
parents:
8848
diff
changeset

1301 

10003  1302 
* HOL and ZF: syntax for quotienting wrt an equivalence relation 
1303 
changed from A/r to A//r; 

9908  1304 

10003  1305 
* ZF: new treatment of arithmetic (nat & int) may break some old 
1306 
proofs; 

8921
7c04c98132c4
* Pure: changed syntax of local blocks from {{ }} to { };
wenzelm
parents:
8887
diff
changeset

1307 

10003  1308 
* Isar: renamed some attributes (RS > THEN, simplify > simplified, 
1309 
rulify > rule_format, elimify > elim_format, ...); 

9542  1310 

9941
fe05af7ec816
renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents:
9937
diff
changeset

1311 
* Isar/Provers: intro/elim/dest attributes changed; renamed 
fe05af7ec816
renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents:
9937
diff
changeset

1312 
intro/intro!/intro!! flags to intro!/intro/intro? (in most cases, one 
9937  1313 
should have to change intro!! to intro? only); replaced "delrule" by 
1314 
"rule del"; 

9437
93e91040c286
* Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents:
9402
diff
changeset

1315 

9612  1316 
* Isar/HOL: renamed "intrs" to "intros" in inductive definitions; 
1317 

9437
93e91040c286
* Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents:
9402
diff
changeset

1318 
* Provers: strengthened force_tac by using new first_best_tac; 
9402  1319 

10003  1320 
* LaTeX document preparation: several changes of isabelle.sty (see 
1321 
lib/texinputs); 

8729
094dbd0fad0c
* improved name spaces: ambiguous output is qualified; support for
wenzelm
parents:
8705
diff
changeset

1322 

8014  1323 

8487  1324 
*** Document preparation *** 
8358
a57d72b5d272
* isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents:
8283
diff
changeset

1325 

9198
0ab3c81e9425
* formal comments (text blocks etc.) in newstyle theories may now
wenzelm
parents:
9185
diff
changeset

1326 
* formal comments (text blocks etc.) in newstyle theories may now 
9753  1327 
contain antiquotations of thm/prop/term/typ/text to be presented 
1328 
according to latex print mode; concrete syntax is like this: 

1329 
@{term[show_types] "f(x) = a + x"}; 

9198
0ab3c81e9425
* formal comments (text blocks etc.) in newstyle theories may now
wenzelm
parents:
9185
diff
changeset

1330 

8358
a57d72b5d272
* isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents:
8283
diff
changeset

1331 
* isatool mkdir provides easy setup of Isabelle session directories, 
8518  1332 
including proper document sources; 
8358
a57d72b5d272
* isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents:
8283
diff
changeset

1333 

a57d72b5d272
* isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents:
8283
diff
changeset

1334 
* generated LaTeX sources are now deleted after successful run 
a57d72b5d272
* isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents:
8283
diff
changeset

1335 
(isatool document c); may retain a copy somewhere else via D option 
a57d72b5d272
* isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents:
8283
diff
changeset

1336 
of isatool usedir; 
a57d72b5d272
* isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents:
8283
diff
changeset

1337 

8566  1338 
* isatool usedir D now lets isatool latex o sty update the Isabelle 
10003  1339 
style files, achieving selfcontained LaTeX sources and simplifying 
1340 
LaTeX debugging; 

8566  1341 

8518  1342 
* oldstyle theories now produce (crude) LaTeX output as well; 
8358
a57d72b5d272
* isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents:
8283
diff
changeset

1343 

9057
af1ca1acf292
* browser info session directories are now selfcontained (may be put
wenzelm
parents:
9052
diff
changeset

1344 
* browser info session directories are now selfcontained (may be put 
9437
93e91040c286
* Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents:
9402
diff
changeset

1345 
on WWW server seperately); improved graphs of nested sessions; removed 
93e91040c286
* Isar/Provers: intro/elim/dest attributes: changed
wenzelm
parents:
9402
diff
changeset

1346 
graph for 'all sessions'; 
9057
af1ca1acf292
* browser info session directories are now selfcontained (may be put
wenzelm
parents:
9052
diff
changeset

1347 

10003  1348 
* several improvements in isabelle style files; \isabellestyle{it} 
1349 
produces fake math mode output; \isamarkupheader is now \section by 

1350 
default; see lib/texinputs/isabelle.sty etc.; 

9489
aa757b35b129
* blast(_tac) now handles actual objectlogic rules as assumptions;
wenzelm
parents:
9457
diff
changeset

1351 

8358
a57d72b5d272
* isatool mkdir provides easy setup of Isabelle session directories,
wenzelm
parents:
8283
diff
changeset

1352 

8184  1353 
*** Isar *** 
1354 

10003  1355 
* Isar/Pure: local results and corresponding term bindings are now 
1356 
subject to HindleyMilner polymorphism (similar to ML); this 

1357 
accommodates incremental typeinference very nicely; 

8283
0a319c5746eb
* Pure now provides its own version of intro/elim/dest attributes;
wenzelm
parents:
8271
diff
changeset

1358 

10003  1359 
* Isar/Pure: new derived language element 'obtain' supports 
1360 
generalized existence reasoning; 

8621
8ba0f90f6f35
* Isar/Pure: local results and corresponding term bindings are now
wenzelm
parents:
8603
diff
changeset

1361 

10003  1362 
* Isar/Pure: new calculational elements 'moreover' and 'ultimately' 
1363 
support accumulation of results, without applying any rules yet; 

1364 
useful to collect intermediate results without explicit name 

1365 
references, and for use with transitivity rules with more than 2 

1366 
premises; 

8184  1367 

10003  1368 
* Isar/Pure: scalable support for caseanalysis type proofs: new 
1369 
'case' language element refers to local contexts symbolically, as 

1370 
produced by certain proof methods; internally, case names are attached 

1371 
to theorems as "tags"; 

8440
d66f0f14b1ca
* HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents:
8425
diff
changeset

1372 

10003  1373 
* Isar/Pure: theory command 'hide' removes declarations from 
9330
6861e3b00155
HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents:
9288
diff
changeset

1374 
class/type/const name spaces; 
6861e3b00155
HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents:
9288
diff
changeset

1375 

10003  1376 
* Isar/Pure: theory command 'defs' supports option "(overloaded)" to 
9330
6861e3b00155
HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents:
9288
diff
changeset

1377 
indicate potential overloading; 
6861e3b00155
HOL: the disjoint sum is now "<+>" instead of "Plus";
wenzelm
parents:
9288
diff
changeset

1378 

10003  1379 
* Isar/Pure: changed syntax of local blocks from {{ }} to { }; 
8621
8ba0f90f6f35
* Isar/Pure: local results and corresponding term bindings are now
wenzelm
parents:
8603
diff
changeset

1380 

10003  1381 
* Isar/Pure: syntax of sorts made 'inner', i.e. have to write 
1382 
"{a,b,c}" instead of {a,b,c}; 

9011
0cfc347f8d19
Isar/Pure: removed obsolete 'transfer' attribute (transfer of thms to
wenzelm
parents:
8994
diff
changeset

1383 

10003  1384 
* Isar/Pure now provides its own version of intro/elim/dest 
1385 
attributes; useful for building new logics, but beware of confusion 

1386 
with the version in Provers/classical; 

9612  1387 

10003  1388 
* Isar/Pure: the local context of (nonatomic) goals is provided via 
1389 
case name 'antecedent'; 

8440
d66f0f14b1ca
* HOL: exhaust_tac on datatypes superceded by new case_tac;
wenzelm
parents:
8425
diff
changeset

1390 

10003  1391 
* Isar/Pure: removed obsolete 'transfer' attribute (transfer of thms 
1392 
to the current context is now done automatically); 

9383
c21fa1c48de0
* HOL: removed obsolete expand_if = split_if; theorems if_splits =
wenzelm
parents:
9349
diff
changeset

1393 

10003  1394 
* Isar/Pure: theory command 'method_setup' provides a simple interface 
1395 
for definining proof methods in ML; 

9612  1396 

10003  1397 
* Isar/Provers: intro/elim/dest attributes changed; renamed 
9941
fe05af7ec816
renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents:
9937
diff
changeset

1398 
intro/intro!/intro!! flags to intro!/intro/intro? (INCOMPATIBILITY, in 
fe05af7ec816
renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents:
9937
diff
changeset

1399 
most cases, one should have to change intro!! to intro? only); 
fe05af7ec816
renamed atts: rulify to rule_format, elimify to elim_format;
wenzelm
parents:
9937
diff
changeset

1400 
replaced "delrule" by "rule del"; 
8283
0a319c5746eb
* Pure now provides its own version of intro/elim/dest attributes;
wenzelm
parents:
8271
diff
changeset

1401 

10003  1402 
* Isar/Provers: new 'hypsubst' method, plain 'subst' method and 
1403 
'symmetric' attribute (the latter supercedes [RS sym]); 

1404 

1405 
* Isar/Provers: splitter support (via 'split' attribute and 'simp' 

1406 
method modifier); 'simp' method: 'only:' modifier removes loopers as 

1407 
well (including splits); 
