author  huffman 
Mon, 16 Mar 2009 15:58:41 0700  
changeset 30562  7b0017587e7d 
parent 30547  4c2514625873 
child 30577  79cc595655c0 
permissions  rwrr 
5363  1 
Isabelle NEWS  history userrelevant changes 
2 
============================================== 

2553  3 

27122  4 
New in this Isabelle version 
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27599  7 
*** General *** 
8 

30106  9 
* The main reference manuals (isarref, implementation, system) have 
10 
been updated and extended. Formally checked references as hyperlinks 

11 
are now available in uniform manner. 

12 

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* Simplified main Isabelle executables, with less surprises on 
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caseinsensitive filesystems (such as Mac OS). 
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 The main Isabelle tool wrapper is now called "isabelle" instead of 
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"isatool." 
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 The former "isabelle" alias for "isabelleprocess" has been 
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removed (should rarely occur to regular users). 
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21 

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 The former "isabelleinterface" and its alias "Isabelle" have been 
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removed (interfaces are now regular Isabelle tools). 
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Within scripts and make files, the Isabelle environment variables 
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ISABELLE_TOOL and ISABELLE_PROCESS replace old ISATOOL and ISABELLE, 
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respectively. (The latter are still available as legacy feature.) 
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The old isabelleinterface wrapper could react in confusing ways if 
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the interface was uninstalled or changed otherwise. Individual 
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interface tool configuration is now more explicit, see also the 
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Isabelle system manual. In particular, Proof General is now available 
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via "isabelle emacs". 
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INCOMPATIBILITY, need to adapt derivative scripts. Users may need to 
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purge installed copies of Isabelle executables and rerun "isabelle 
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install p ...", or use symlinks. 
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* The default for ISABELLE_HOME_USER is now ~/.isabelle instead of the 
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old ~/isabelle, which was slightly nonstandard and apt cause 
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surprises on caseinsensitive filesystems. 
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INCOMPATIBILITY, need to move existing ~/isabelle/etc, 
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~/isabelle/heaps, ~/isabelle/browser_info to the new place. Special 
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care is required when using older releases of Isabelle. Note that 
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ISABELLE_HOME_USER can be changed in Isabelle/etc/settings of any 
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Isabelle distribution. 
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* Proofs of fully specified statements are run in parallel on 
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multicore systems. A speedup factor of 23 can be expected on a 
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regular 4core machine, if the initial heap space is made reasonably 
29162  52 
large (cf. Poly/ML option H). [Poly/ML 5.2.1 or later] 
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27599  54 
* Generalized Isar history, with support for linear undo, direct state 
55 
addressing etc. 

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27191  57 
* Recovered hiding of consts, which was accidentally broken in 
58 
Isabelle2007. Potential INCOMPATIBILITY, ``hide const c'' really 

59 
makes c inaccessible; consider using ``hide (open) const c'' instead. 

60 

27599  61 
* Removed exotic 'token_translation' command. INCOMPATIBILITY, use ML 
62 
interface instead. 

63 

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* There is a new syntactic category "float_const" for signed decimal 
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fractions (e.g. 123.45 or 123.45). 
28964  66 

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* New prover for coherent logic (see src/Tools/coherent.ML). 
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27599  69 

70 
*** Pure *** 

71 

29608  72 
* Class declaration: sc. "base sort" must not be given in import list 
73 
any longer but is inferred from the specification. Particularly in HOL, 

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write 

75 

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

77 

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* Module moves in repository: 
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src/Pure/Tools/value.ML ~> src/Tools/ 
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src/Pure/Tools/quickcheck.ML ~> src/Tools/ 
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* Slightly more coherent Pure syntax, with updated documentation in 
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isarref manual. Removed locales meta_term_syntax and 
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meta_conjunction_syntax: TERM and &&& (formerly &&) are now permanent, 
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INCOMPATIBILITY in rare situations. 
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* Goaldirected proof now enforces strict proof irrelevance wrt. sort 
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hypotheses. Sorts required in the course of reasoning need to be 
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covered by the constraints in the initial statement, completed by the 
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type instance information of the background theory. Nontrivial sort 
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hypotheses, which rarely occur in practice, may be specified via 
28633  92 
vacuous propositions of the form SORT_CONSTRAINT('a::c). For example: 
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lemma assumes "SORT_CONSTRAINT('a::empty)" shows False ... 
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The result contains an implicit sort hypotheses as before  
28631  97 
SORT_CONSTRAINT premises are eliminated as part of the canonical rule 
98 
normalization. 

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* Changed defaults for unify configuration options;
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* Changed defaults for unify configuration options: 
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unify_trace_bound = 50 (formerly 25) 
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unify_search_bound = 60 (formerly 30) 
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30106  105 
* Different bookkeeping for code equations (INCOMPATIBILITY): 
106 

107 
a) On theory merge, the last set of code equations for a particular 

108 
constant is taken (in accordance with the policy applied by other 

109 
parts of the code generator framework). 

110 

111 
b) Code equations stemming from explicit declarations (e.g. code 

112 
attribute) gain priority over default code equations stemming 

113 
from definition, primrec, fun etc. 

114 

115 
* Global versions of theorems stemming from classes do not carry a 

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parameter prefix any longer. INCOMPATIBILITY. 

28058  117 

28710  118 
* Dropped locale element "includes". This is a major INCOMPATIBILITY. 
119 
In existing theorem specifications replace the includes element by the 

30106  120 
respective context elements of the included locale, omitting those 
121 
that are already present in the theorem specification. Multiple 

122 
assume elements of a locale should be replaced by a single one 

123 
involving the locale predicate. In the proof body, declarations (most 

124 
notably theorems) may be regained by interpreting the respective 

125 
locales in the proof context as required (command "interpret"). 

126 

28710  127 
If using "includes" in replacement of a target solely because the 
128 
parameter types in the theorem are not as general as in the target, 

30106  129 
consider declaring a new locale with additional type constraints on 
130 
the parameters (context element "constrains"). 

28710  131 

29253  132 
* Dropped "locale (open)". INCOMPATIBILITY. 
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Interpretation command (theory/proof context) no longer simplifies goal.
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* Interpretation commands no longer attempt to simplify goal. 
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INCOMPATIBILITY: in rare situations the generated goal differs. Use 
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methods intro_locales and unfold_locales to clarify. 
27681  137 

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* Interpretation commands no longer accept interpretation attributes. 
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INCOMPATBILITY. 
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30106  141 
* Complete reimplementation of locales. INCOMPATIBILITY. The most 
142 
important changes are listed below. See documentation (forthcoming) 

143 
and tutorial (also forthcoming) for details. 

29253  144 

145 
 In locale expressions, instantiation replaces renaming. Parameters 

146 
must be declared in a for clause. To aid compatibility with previous 

147 
parameter inheritance, in locale declarations, parameters that are not 

148 
'touched' (instantiation position "_" or omitted) are implicitly added 

149 
with their syntax at the beginning of the for clause. 

150 

151 
 Syntax from abbreviations and definitions in locales is available in 

152 
locale expressions and context elements. The latter is particularly 

153 
useful in locale declarations. 

154 

155 
 More flexible mechanisms to qualify names generated by locale 

156 
expressions. Qualifiers (prefixes) may be specified in locale 

30106  157 
expressions. Available are normal qualifiers (syntax "name:") and 
158 
strict qualifiers (syntax "name!:"). The latter must occur in name 

159 
references and are useful to avoid accidental hiding of names, the 

160 
former are optional. Qualifiers derived from the parameter names of a 

161 
locale are no longer generated. 

162 

163 
 "sublocale l < e" replaces "interpretation l < e". The 

164 
instantiation clause in "interpretation" and "interpret" (square 

165 
brackets) is no longer available. Use locale expressions. 

29253  166 

167 
 When converting proof scripts, be sure to replace qualifiers in 

168 
"interpretation" and "interpret" by strict qualifiers. Qualifiers in 

169 
locale expressions range over a single locale instance only. 

170 

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* Command 'instance': attached definitions no longer accepted. 
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INCOMPATIBILITY, use proper 'instantiation' target. 
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* Keyword 'code_exception' now named 'code_abort'. INCOMPATIBILITY. 
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28114  176 
* The 'axiomatization' command now only works within a global theory 
177 
context. INCOMPATIBILITY. 

178 

30106  179 
* New find_theorems criterion "solves" matching theorems that directly 
180 
solve the current goal. Try "find_theorems solves". 

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* Added an auto solve option, which can be enabled through the 
29883  183 
ProofGeneral Isabelle settings menu (disabled by default). 
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184 

29883  185 
When enabled, find_theorems solves is called whenever a new lemma is 
186 
stated. Any theorems that could solve the lemma directly are listed 

187 
underneath the goal. 

188 

30461  189 
* New command 'find_consts' searches for constants based on type and 
30106  190 
name patterns, e.g. 
29883  191 

192 
find_consts "_ => bool" 

193 

30106  194 
By default, matching is against subtypes, but it may be restricted to 
195 
the whole type. Searching by name is possible. Multiple queries are 

196 
conjunctive and queries may be negated by prefixing them with a 

197 
hyphen: 

29883  198 

199 
find_consts strict: "_ => bool" name: "Int" "int => int" 

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30461  201 
* New command 'local_setup' is similar to 'setup', but operates on a 
202 
local theory context. 

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27381  205 
*** Document preparation *** 
206 

207 
* Antiquotation @{lemma} now imitates a regular terminal proof, 

27392  208 
demanding keyword 'by' and supporting the full method expression 
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syntax just like the Isar command 'by'. 
27381  210 

211 

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*** HOL *** 
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213 

30562  214 
* Theory Library/Polynomial.thy defines an abstract type 'a poly of 
215 
univariate polynomials with coefficients of type 'a. In addition to 

216 
the standard ring operations, it also supports div and mod. Code 

217 
generation is also supported, using liststyle constructors. 

218 

219 
* Theory Library/Inner_Product.thy defines a class of real_inner for 

220 
real inner product spaces, with an overloaded operation inner :: 'a => 

221 
'a => real. Class real_inner is a subclass of real_normed_vector from 

222 
RealVector.thy. 

223 

224 
* Theory Library/Product_Vector.thy provides instances for the product 

225 
type 'a * 'b of several classes from RealVector.thy and 

226 
Inner_Product.thy. Definitions of addition, subtraction, scalar 

227 
multiplication, norms, and inner products are included. 

228 

229 
* Theory Library/Bit.thy defines the field "bit" of integers modulo 2. 

230 
In addition to the field operations, numerals and case syntax are also 

231 
supported. 

232 

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* Theory Library/Diagonalize.thy provides constructive version of 
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Cantor's first diagonalization argument. 
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235 

30298  236 
* New predicate "strict_mono" classifies strict functions on partial orders. 
237 
With strict functions on linear orders, reasoning about (in)equalities is 

30300  238 
facilitated by theorems "strict_mono_eq", "strict_mono_less_eq" and "strict_mono_less". 
30298  239 

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* Some set operations are now proper qualified constants with authentic syntax. 
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241 
INCOMPATIBILITY: 
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242 

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243 
op Int ~> Set.Int 
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244 
op Un ~> Set.Un 
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INTER ~> Set.INTER 
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UNION ~> Set.UNION 
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Inter ~> Set.Inter 
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Union ~> Set.Union 
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{} ~> Set.empty 
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UNIV ~> Set.UNIV 
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251 

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252 
* Class complete_lattice with operations Inf, Sup, INFI, SUPR now in theory 
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253 
Set. 
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254 

29797  255 
* Auxiliary class "itself" has disappeared  classes without any parameter 
256 
are treated as expected by the 'class' command. 

257 

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258 
* Leibnitz's Series for Pi and the arcus tangens and logarithm series. 
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259 

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260 
* Common decision procedures (Cooper, MIR, Ferrack, Approximation, Dense_Linear_Order) 
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261 
now in directory HOL/Decision_Procs. 
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262 

30562  263 
* Theory HOL/Decision_Procs/Approximation.thy provides the new proof method 
29823
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264 
"approximation". It proves formulas on real values by using interval arithmetic. 
29810  265 
In the formulas are also the transcendental functions sin, cos, tan, atan, ln, 
30439  266 
exp and the constant pi are allowed. For examples see 
267 
HOL/Descision_Procs/ex/Approximation_Ex.thy. 

29823
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268 

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269 
* Theory "Reflection" now resides in HOL/Library. 
29650  270 

29628  271 
* Entry point to Word library now simply named "Word". INCOMPATIBILITY. 
272 

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273 
* Made source layout more coherent with logical distribution 
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274 
structure: 
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275 

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276 
src/HOL/Library/RType.thy ~> src/HOL/Typerep.thy 
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277 
src/HOL/Library/Code_Message.thy ~> src/HOL/ 
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278 
src/HOL/Library/GCD.thy ~> src/HOL/ 
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279 
src/HOL/Library/Order_Relation.thy ~> src/HOL/ 
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280 
src/HOL/Library/Parity.thy ~> src/HOL/ 
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281 
src/HOL/Library/Univ_Poly.thy ~> src/HOL/ 
30176
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282 
src/HOL/Real/ContNotDenum.thy ~> src/HOL/Library/ 
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283 
src/HOL/Real/Lubs.thy ~> src/HOL/ 
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284 
src/HOL/Real/PReal.thy ~> src/HOL/ 
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285 
src/HOL/Real/Rational.thy ~> src/HOL/ 
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286 
src/HOL/Real/RComplete.thy ~> src/HOL/ 
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287 
src/HOL/Real/RealDef.thy ~> src/HOL/ 
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288 
src/HOL/Real/RealPow.thy ~> src/HOL/ 
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289 
src/HOL/Real/Real.thy ~> src/HOL/ 
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290 
src/HOL/Complex/Complex_Main.thy ~> src/HOL/ 
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291 
src/HOL/Complex/Complex.thy ~> src/HOL/ 
30176
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292 
src/HOL/Complex/FrechetDeriv.thy ~> src/HOL/Library/ 
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293 
src/HOL/Complex/Fundamental_Theorem_Algebra.thy ~> src/HOL/Library/ 
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294 
src/HOL/Hyperreal/Deriv.thy ~> src/HOL/ 
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295 
src/HOL/Hyperreal/Fact.thy ~> src/HOL/ 
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296 
src/HOL/Hyperreal/Integration.thy ~> src/HOL/ 
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297 
src/HOL/Hyperreal/Lim.thy ~> src/HOL/ 
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298 
src/HOL/Hyperreal/Ln.thy ~> src/HOL/ 
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299 
src/HOL/Hyperreal/Log.thy ~> src/HOL/ 
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300 
src/HOL/Hyperreal/MacLaurin.thy ~> src/HOL/ 
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301 
src/HOL/Hyperreal/NthRoot.thy ~> src/HOL/ 
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302 
src/HOL/Hyperreal/Series.thy ~> src/HOL/ 
29197
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303 
src/HOL/Hyperreal/SEQ.thy ~> src/HOL/ 
28952
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304 
src/HOL/Hyperreal/Taylor.thy ~> src/HOL/ 
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305 
src/HOL/Hyperreal/Transcendental.thy ~> src/HOL/ 
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306 
src/HOL/Real/Float ~> src/HOL/Library/ 
29197
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307 
src/HOL/Real/HahnBanach ~> src/HOL/HahnBanach 
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308 
src/HOL/Real/RealVector.thy ~> src/HOL/ 
28952
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309 

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310 
src/HOL/arith_data.ML ~> src/HOL/Tools 
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311 
src/HOL/hologic.ML ~> src/HOL/Tools 
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312 
src/HOL/simpdata.ML ~> src/HOL/Tools 
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313 
src/HOL/int_arith1.ML ~> src/HOL/Tools/int_arith.ML 
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314 
src/HOL/int_factor_simprocs.ML ~> src/HOL/Tools 
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315 
src/HOL/nat_simprocs.ML ~> src/HOL/Tools 
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316 
src/HOL/Real/float_arith.ML ~> src/HOL/Tools 
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317 
src/HOL/Real/float_syntax.ML ~> src/HOL/Tools 
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318 
src/HOL/Real/rat_arith.ML ~> src/HOL/Tools 
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319 
src/HOL/Real/real_arith.ML ~> src/HOL/Tools 
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320 

29398  321 
src/HOL/Library/Array.thy ~> src/HOL/Imperative_HOL 
322 
src/HOL/Library/Heap_Monad.thy ~> src/HOL/Imperative_HOL 

323 
src/HOL/Library/Heap.thy ~> src/HOL/Imperative_HOL 

324 
src/HOL/Library/Imperative_HOL.thy ~> src/HOL/Imperative_HOL 

325 
src/HOL/Library/Ref.thy ~> src/HOL/Imperative_HOL 

326 
src/HOL/Library/Relational.thy ~> src/HOL/Imperative_HOL 

327 

28741  328 
* If methods "eval" and "evaluation" encounter a structured proof state 
329 
with !!/==>, only the conclusion is evaluated to True (if possible), 

330 
avoiding strange error messages. 

331 

332 
* Simplifier: simproc for let expressions now unfolds if bound variable 

30304
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333 
occurs at most once in let expression body. INCOMPATIBILITY. 
28741  334 

28685  335 
* New classes "top" and "bot" with corresponding operations "top" and "bot" 
336 
in theory Orderings; instantiation of class "complete_lattice" requires 

337 
instantiation of classes "top" and "bot". INCOMPATIBILITY. 

338 

339 
* Changed definition lemma "less_fun_def" in order to provide an instance 

340 
for preorders on functions; use lemma "less_le" instead. INCOMPATIBILITY. 

341 

28604
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342 
* Unified theorem tables for both code code generators. Thus 
f36496b73227
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343 
[code func] has disappeared and only [code] remains. INCOMPATIBILITY. 
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344 

28685  345 
* Constants "undefined" and "default" replace "arbitrary". Usually 
346 
"undefined" is the right choice to replace "arbitrary", though logically 

347 
there is no difference. INCOMPATIBILITY. 

28604
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348 

f36496b73227
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349 
* Generic ATP manager for Sledgehammer, based on ML threads instead of 
28605  350 
Posix processes. Avoids potentially expensive forking of the ML 
351 
process. New threadbased implementation also works on nonUnix 

352 
platforms (Cygwin). Provers are no longer hardwired, but defined 

28606  353 
within the theory via plain ML wrapper functions. Basic Sledgehammer 
30106  354 
commands are covered in the isarref manual. 
28604
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355 

f36496b73227
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356 
* Wrapper scripts for remote SystemOnTPTP service allows to use 
30538  357 
sledgehammer without local ATP installation (Vampire etc.). Other 
358 
provers may be included via suitable ML wrappers, see also 

359 
src/HOL/ATP_Linkup.thy. 

28474
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wenzelm
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360 

28350  361 
* Normalization by evaluation now allows nonleftlinear equations. 
362 
Declare with attribute [code nbe]. 

363 

364 
* Command "value" now integrates different evaluation 

28248  365 
mechanisms. The result of the first successful evaluation mechanism 
366 
is printed. In square brackets a particular named evaluation 

367 
mechanisms may be specified (currently, [SML], [code] or [nbe]). See 

368 
further src/HOL/ex/Eval_Examples.thy. 

28227  369 

29125
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370 
* New method "sizechange" to automate termination proofs using (a 
29182  371 
modification of) the sizechange principle. Requires SAT solver. See 
372 
src/HOL/ex/Termination.thy for examples. 

29125
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krauss
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373 

28088
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
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374 
* HOL/Orderings: class "wellorder" moved here, with explicit induction 
723735f2d73a
* Name bindings in higher specification mechanisms;
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375 
rule "less_induct" as assumption. For instantiation of "wellorder" by 
723735f2d73a
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376 
means of predicate "wf", use rule wf_wellorderI. INCOMPATIBILITY. 
27823  377 

27793  378 
* HOL/Orderings: added class "preorder" as superclass of "order". 
379 
INCOMPATIBILITY: Instantiation proofs for order, linorder 

380 
etc. slightly changed. Some theorems named order_class.* now named 

381 
preorder_class.*. 

382 

30198  383 
* HOL/Relation: 
384 
Renamed "refl" to "refl_on", "reflexive" to "refl, "diag" to "Id_on". 

385 

28855  386 
* HOL/Finite_Set: added a new fold combinator of type 
387 
('a => 'b => 'b) => 'b => 'a set => 'b 

388 
Occasionally this is more convenient than the old fold combinator which is 

389 
now defined in terms of the new one and renamed to fold_image. 

390 

29671  391 
* HOL/Ring_and_Field and HOL/OrderedGroup: The lemmas "group_simps" and 
392 
"ring_simps" have been replaced by "algebra_simps" (which can be extended with 

393 
further lemmas!). At the moment both still exist but the former will disappear 

394 
at some point. 

395 

30273
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huffman
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396 
* HOL/Power: Lemma power_Suc is now declared as a simp rule in class 
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397 
recpower. Typespecific simp rules for various recpower types have 
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398 
been removed. INCOMPATIBILITY. Rename old lemmas as follows: 
ecd6f0ca62ea
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huffman
parents:
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diff
changeset

399 

ecd6f0ca62ea
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changeset

400 
rat_power_0 > power_0 
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changeset

401 
rat_power_Suc > power_Suc 
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huffman
parents:
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diff
changeset

402 
realpow_0 > power_0 
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huffman
parents:
30250
diff
changeset

403 
realpow_Suc > power_Suc 
ecd6f0ca62ea
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huffman
parents:
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diff
changeset

404 
complexpow_0 > power_0 
ecd6f0ca62ea
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huffman
parents:
30250
diff
changeset

405 
complexpow_Suc > power_Suc 
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huffman
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changeset

406 
power_poly_0 > power_0 
ecd6f0ca62ea
declare power_Suc [simp]; remove redundant typespecific versions of power_Suc
huffman
parents:
30250
diff
changeset

407 
power_poly_Suc > power_Suc 
ecd6f0ca62ea
declare power_Suc [simp]; remove redundant typespecific versions of power_Suc
huffman
parents:
30250
diff
changeset

408 

27793  409 
* HOL/Ring_and_Field and HOL/Divides: Definition of "op dvd" has been 
410 
moved to separate class dvd in Ring_and_Field; a couple of lemmas on 

411 
dvd has been generalized to class comm_semiring_1. Likewise a bunch 

412 
of lemmas from Divides has been generalized from nat to class 

413 
semiring_div. INCOMPATIBILITY. This involves the following theorem 

414 
renames resulting from duplicate elimination: 

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

415 

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

416 
dvd_def_mod ~> dvd_eq_mod_eq_0 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

417 
zero_dvd_iff ~> dvd_0_left_iff 
28559  418 
dvd_0 ~> dvd_0_right 
27651
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

419 
DIVISION_BY_ZERO_DIV ~> div_by_0 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

420 
DIVISION_BY_ZERO_MOD ~> mod_by_0 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

421 
mult_div ~> div_mult_self2_is_id 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

422 
mult_mod ~> mod_mult_self2_is_0 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

423 

30224  424 
* HOL/IntDiv: removed many lemmas that are instances of classbased 
30044  425 
generalizations (from Divides and Ring_and_Field). 
426 
INCOMPATIBILITY. Rename old lemmas as follows: 

427 

428 
dvd_diff > nat_dvd_diff 

429 
dvd_zminus_iff > dvd_minus_iff 

30224  430 
mod_add1_eq > mod_add_eq 
431 
mod_mult1_eq > mod_mult_right_eq 

432 
mod_mult1_eq' > mod_mult_left_eq 

433 
mod_mult_distrib_mod > mod_mult_eq 

30044  434 
nat_mod_add_left_eq > mod_add_left_eq 
435 
nat_mod_add_right_eq > mod_add_right_eq 

436 
nat_mod_div_trivial > mod_div_trivial 

437 
nat_mod_mod_trivial > mod_mod_trivial 

438 
zdiv_zadd_self1 > div_add_self1 

439 
zdiv_zadd_self2 > div_add_self2 

30181  440 
zdiv_zmult_self1 > div_mult_self2_is_id 
30044  441 
zdiv_zmult_self2 > div_mult_self1_is_id 
442 
zdvd_triv_left > dvd_triv_left 

443 
zdvd_triv_right > dvd_triv_right 

444 
zdvd_zmult_cancel_disj > dvd_mult_cancel_left 

30085  445 
zmod_eq0_zdvd_iff > dvd_eq_mod_eq_0[symmetric] 
30044  446 
zmod_zadd_left_eq > mod_add_left_eq 
447 
zmod_zadd_right_eq > mod_add_right_eq 

448 
zmod_zadd_self1 > mod_add_self1 

449 
zmod_zadd_self2 > mod_add_self2 

30224  450 
zmod_zadd1_eq > mod_add_eq 
30044  451 
zmod_zdiff1_eq > mod_diff_eq 
452 
zmod_zdvd_zmod > mod_mod_cancel 

453 
zmod_zmod_cancel > mod_mod_cancel 

454 
zmod_zmult_self1 > mod_mult_self2_is_0 

455 
zmod_zmult_self2 > mod_mult_self1_is_0 

456 
zmod_1 > mod_by_1 

457 
zdiv_1 > div_by_1 

458 
zdvd_abs1 > abs_dvd_iff 

459 
zdvd_abs2 > dvd_abs_iff 

460 
zdvd_refl > dvd_refl 

461 
zdvd_trans > dvd_trans 

462 
zdvd_zadd > dvd_add 

463 
zdvd_zdiff > dvd_diff 

464 
zdvd_zminus_iff > dvd_minus_iff 

465 
zdvd_zminus2_iff > minus_dvd_iff 

466 
zdvd_zmultD > dvd_mult_right 

467 
zdvd_zmultD2 > dvd_mult_left 

468 
zdvd_zmult_mono > mult_dvd_mono 

469 
zdvd_0_right > dvd_0_right 

470 
zdvd_0_left > dvd_0_left_iff 

471 
zdvd_1_left > one_dvd 

472 
zminus_dvd_iff > minus_dvd_iff 

473 

27599  474 
* HOL/Library/GCD: Curried operations gcd, lcm (for nat) and zgcd, 
475 
zlcm (for int); carried together from various gcd/lcm developements in 

476 
the HOL Distribution. zgcd and zlcm replace former igcd and ilcm; 

30176
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

477 
corresponding theorems renamed accordingly. INCOMPATIBILITY. To 
27599  478 
recover tupled syntax, use syntax declarations like: 
27556  479 

480 
hide (open) const gcd 

481 
abbreviation gcd where 

482 
"gcd == (%(a, b). GCD.gcd a b)" 

483 
notation (output) 

484 
GCD.gcd ("gcd '(_, _')") 

485 

486 
(analogously for lcm, zgcd, zlcm). 

487 

488 
* HOL/Real/Rational: 'Fract k 0' now equals '0'. INCOMPATIBILITY. 

27551  489 

28964  490 
* The real numbers offer decimal input syntax: 12.34 is translated into 
30176
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

491 
1234/10^2. This translation is not reversed upon output. 
28964  492 

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

493 
* New ML antiquotation @{code}: takes constant as argument, generates 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

494 
corresponding code in background and inserts name of the corresponding 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

495 
resulting ML value/function/datatype constructor binding in place. 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

496 
All occurrences of @{code} with a single ML block are generated 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

497 
simultaneously. Provides a generic and safe interface for 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

498 
instrumentalizing code generation. See HOL/ex/Code_Antiq for a toy 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

499 
example, or HOL/Complex/ex/ReflectedFerrack for a more ambitious 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

500 
application. In future you ought refrain from adhoc compiling 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

501 
generated SML code on the ML toplevel. Note that (for technical 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

502 
reasons) @{code} cannot refer to constants for which userdefined 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

503 
serializations are set. Refer to the corresponding ML counterpart 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

504 
directly in that cases. 
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

505 

27424  506 
* Integrated image HOLComplex with HOL. Entry points Main.thy and 
507 
Complex_Main.thy remain as they are. 

508 

27599  509 
* New image HOLPlain provides a minimal HOL with the most important 
510 
tools available (inductive, datatype, primrec, ...). By convention 

511 
the corresponding theory Plain should be ancestor of every further 

512 
(library) theory. Some library theories now have ancestor Plain 

513 
(instead of Main), thus theory Main occasionally has to be imported 

514 
explicitly. 

27421  515 

28248  516 
* The metis method now fails in the usual manner, rather than raising 
517 
an exception, if it determines that it cannot prove the theorem. 

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

518 

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

519 
* The metis method no longer fails because the theorem is too trivial 
fb92b1d1b285
The metis method no longer fails because the theorem is too trivial
paulson
parents:
28685
diff
changeset

520 
(contains the empty clause). 
fb92b1d1b285
The metis method no longer fails because the theorem is too trivial
paulson
parents:
28685
diff
changeset

521 

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

522 
* Methods "case_tac" and "induct_tac" now refer to the very same rules 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

523 
as the structured Isar versions "cases" and "induct", cf. the 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

524 
corresponding "cases" and "induct" attributes. Mutual induction rules 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

525 
are now presented as a list of individual projections 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

526 
(e.g. foo_bar.inducts for types foo and bar); the old format with 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

527 
explicit HOL conjunction is no longer supported. INCOMPATIBILITY, in 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

528 
rare situations a different rule is selected  notably nested tuple 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

529 
elimination instead of former prod.exhaust: use explicit (case_tac t 
904acdaf4299
induct_tac: mutual rules work as for method "induct";
wenzelm
parents:
27305
diff
changeset

530 
rule: prod.exhaust) here. 
27122  531 

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

532 
* Attributes "cases", "induct", "coinduct" support "del" option. 
9bfcdb1905e1
* Attributes cases, induct, coinduct support del option.
wenzelm
parents:
27122
diff
changeset

533 

27122  534 
* Removed fact "case_split_thm", which duplicates "case_split". 
535 

536 
* Command 'rep_datatype': instead of theorem names the command now 

537 
takes a list of terms denoting the constructors of the type to be 

538 
represented as datatype. The characteristic theorems have to be 

539 
proven. INCOMPATIBILITY. Also observe that the following theorems 

540 
have disappeared in favour of existing ones: 

541 

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

542 
unit_induct ~> unit.induct 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

543 
prod_induct ~> prod.induct 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

544 
sum_induct ~> sum.induct 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

545 
Suc_Suc_eq ~> nat.inject 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

546 
Suc_not_Zero Zero_not_Suc ~> nat.distinct 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

547 

30235
58d147683393
Made Option a separate theory and renamed option_map to Option.map
nipkow
parents:
30224
diff
changeset

548 
* The option datatype has been moved to a new theory HOL/Option.thy. 
30250  549 
Renamed option_map to Option.map, and o2s to Option.set. 
30235
58d147683393
Made Option a separate theory and renamed option_map to Option.map
nipkow
parents:
30224
diff
changeset

550 

27122  551 
* Library/Nat_Infinity: added addition, numeral syntax and more 
552 
instantiations for algebraic structures. Removed some duplicate 

553 
theorems. Changes in simp rules. INCOMPATIBILITY. 

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

554 

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

555 
* ATP selection (E/Vampire/Spass) is now via Proof General's settings 
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

556 
menu. 
28067  557 

30461  558 
* Linear arithmetic now ignores all inequalities when 
559 
fast_arith_neq_limit is exceeded, instead of giving up entirely. 

560 

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

561 

27696  562 
*** HOLAlgebra *** 
563 

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

564 
* New locales for orders and lattices where the equivalence relation 
30106  565 
is not restricted to equality. INCOMPATIBILITY: all order and lattice 
566 
locales use a record structure with field eq for the equivalence. 

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

567 

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

568 
* New theory of factorial domains. 
95b36bfe7fc4
New locales for orders and lattices where the equivalence relation is not restricted to equality.
ballarin
parents:
27704
diff
changeset

569 

27696  570 
* Units_l_inv and Units_r_inv are now simprules by default. 
571 
INCOMPATIBILITY. Simplifier proof that require deletion of l_inv 

572 
and/or r_inv will now also require deletion of these lemmas. 

573 

574 
* Renamed the following theorems. INCOMPATIBILITY. 

575 
UpperD ~> Upper_memD 

576 
LowerD ~> Lower_memD 

577 
least_carrier ~> least_closed 

578 
greatest_carrier ~> greatest_closed 

579 
greatest_Lower_above ~> greatest_Lower_below 

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

580 
one_zero ~> carrier_one_zero 
21bbd410ba04
Generalised polynomial lemmas from cring to ring.
ballarin
parents:
27713
diff
changeset

581 
one_not_zero ~> carrier_one_not_zero (collision with assumption) 
27696  582 

27793  583 

27485  584 
*** HOLNSA *** 
585 

586 
* Created new image HOLNSA, containing theories of nonstandard 

587 
analysis which were previously part of HOLComplex. Entry point 

588 
Hyperreal.thy remains valid, but theories formerly using 

589 
Complex_Main.thy should now use new entry point Hypercomplex.thy. 

590 

591 

27704  592 
*** ZF *** 
593 

594 
* Proof of Zorn's Lemma for partial orders. 

595 

596 

30176
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

597 
*** HOLCF *** 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

598 

78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

599 
* Reimplemented the simplification procedure for proving continuity 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

600 
subgoals. The new simproc is extensible; users can declare additional 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

601 
continuity introduction rules with the attribute [cont2cont]. 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

602 

78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

603 
* The continuity simproc now uses a different introduction rule for 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

604 
solving continuity subgoals on terms with lambda abstractions. In 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

605 
some rare cases the new simproc may fail to solve subgoals that the 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

606 
old one could solve, and "simp add: cont2cont_LAM" may be necessary. 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

607 
Potential INCOMPATIBILITY. 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

608 

78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

609 
* The syntax of the fixrec package has changed. The specification 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

610 
syntax now conforms in style to definition, primrec, function, etc. 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

611 
See HOLCF/ex/Fixrec_ex.thy for examples. INCOMPATIBILITY. 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

612 

78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

613 

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

614 
*** ML *** 
28088
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

615 

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

616 
* Highlevel support for concurrent ML programming, see 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

617 
src/Pure/Cuncurrent. The dataoriented model of "future values" is 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

618 
particularly convenient to organize independent functional 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

619 
computations. The concept of "synchronized variables" provides a 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

620 
higherorder interface for components with shared state, avoiding the 
29162  621 
delicate details of mutexes and condition variables. [Poly/ML 5.2.1 
622 
or later] 

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

623 

30530  624 
* Simplified ML attribute and method setup, cf. functions Attrib.setup 
30547  625 
and Method.setup, as well as commands 'attribute_setup' and 
626 
'method_setup'. INCOMPATIBILITY for 'method_setup', need to simplify 

627 
existing code accordingly, or use plain 'setup' together with old 

628 
Method.add_method. 

30530  629 

28294  630 
* Simplified ML oracle interface Thm.add_oracle promotes 'a > cterm 
631 
to 'a > thm, while results are always tagged with an authentic oracle 

632 
name. The Isar command 'oracle' is now polymorphic, no argument type 

633 
is specified. INCOMPATIBILITY, need to simplify existing oracle code 

634 
accordingly. Note that extra performance may be gained by producing 

635 
the cterm carefully, avoiding slow Thm.cterm_of. 

636 

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

637 
* ML bindings produced via Isar commands are stored within the Isar 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

638 
context (theory or proof). Consequently, commands like 'use' and 'ML' 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

639 
become threadsafe and work with undo as expected (concerning 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

640 
toplevel bindings, not sideeffects on global references). 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

641 
INCOMPATIBILITY, need to provide proper Isar context when invoking the 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

642 
compiler at runtime; really global bindings need to be given outside a 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

643 
theory. [Poly/ML 5.2 or later] 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

644 

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

645 
* Command 'ML_prf' is analogous to 'ML' but works within a proof 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

646 
context. Toplevel ML bindings are stored within the proof context in 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

647 
a purely sequential fashion, disregarding the nested proof structure. 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

648 
ML bindings introduced by 'ML_prf' are discarded at the end of the 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

649 
proof. [Poly/ML 5.2 or later] 
44664ffc9725
* ML bindings produced via Isar commands are stored within the Isar context.
wenzelm
parents:
28254
diff
changeset

650 

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

651 
* Generic Toplevel.add_hook interface allows to analyze the result of 
28103
b79e61861f0f
simplified Toplevel.add_hook: cover successful transactions only;
wenzelm
parents:
28099
diff
changeset

652 
transactions. E.g. see src/Pure/ProofGeneral/proof_general_pgip.ML 
b79e61861f0f
simplified Toplevel.add_hook: cover successful transactions only;
wenzelm
parents:
28099
diff
changeset

653 
for theorem dependency output of transactions resulting in a new 
b79e61861f0f
simplified Toplevel.add_hook: cover successful transactions only;
wenzelm
parents:
28099
diff
changeset

654 
theory state. 
28099
fb16a07d6580
* Generic Toplevel.add_hook interface allows to analyze the result of
wenzelm
parents:
28089
diff
changeset

655 

30395
f3103bd2b167
* More systematic treatment of long names, abstract name bindings, and name space operations.
wenzelm
parents:
30326
diff
changeset

656 
* More systematic treatment of long names, abstract name bindings, and 
f3103bd2b167
* More systematic treatment of long names, abstract name bindings, and name space operations.
wenzelm
parents:
30326
diff
changeset

657 
name space operations. Basic operations on qualified names have been 
30399  658 
move from structure NameSpace to Long_Name, e.g. Long_Name.base_name, 
30395
f3103bd2b167
* More systematic treatment of long names, abstract name bindings, and name space operations.
wenzelm
parents:
30326
diff
changeset

659 
Long_Name.append. Old type bstring has been mostly replaced by 
f3103bd2b167
* More systematic treatment of long names, abstract name bindings, and name space operations.
wenzelm
parents:
30326
diff
changeset

660 
abstract type binding (see structure Binding), which supports precise 
30399  661 
qualification (by packages and local theory targets), as well as 
662 
proper tracking of source positions. INCOMPATIBILITY, need to wrap 

663 
old bstring values into Binding.name, or better pass through abstract 

664 
bindings everywhere. See further src/Pure/General/long_name.ML, 

30395
f3103bd2b167
* More systematic treatment of long names, abstract name bindings, and name space operations.
wenzelm
parents:
30326
diff
changeset

665 
src/Pure/General/binding.ML and src/Pure/General/name_space.ML 
f3103bd2b167
* More systematic treatment of long names, abstract name bindings, and name space operations.
wenzelm
parents:
30326
diff
changeset

666 

f3103bd2b167
* More systematic treatment of long names, abstract name bindings, and name space operations.
wenzelm
parents:
30326
diff
changeset

667 
* Simplified interface for defining document antiquotations via 
f3103bd2b167
* More systematic treatment of long names, abstract name bindings, and name space operations.
wenzelm
parents:
30326
diff
changeset

668 
ThyOutput.antiquotation, ThyOutput.output, and optionally 
f3103bd2b167
* More systematic treatment of long names, abstract name bindings, and name space operations.
wenzelm
parents:
30326
diff
changeset

669 
ThyOutput.maybe_pretty_source. INCOMPATIBILITY, need to simplify user 
f3103bd2b167
* More systematic treatment of long names, abstract name bindings, and name space operations.
wenzelm
parents:
30326
diff
changeset

670 
antiquotations accordingly, see src/Pure/Thy/thy_output.ML for common 
f3103bd2b167
* More systematic treatment of long names, abstract name bindings, and name space operations.
wenzelm
parents:
30326
diff
changeset

671 
examples. 
28088
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

672 

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

673 
* Result facts (from PureThy.note_thms, ProofContext.note_thms, 
66ae1926482a
* Result facts now refer to the *full* internal name;
wenzelm
parents:
28088
diff
changeset

674 
LocalTheory.note etc.) now refer to the *full* internal name, not the 
66ae1926482a
* Result facts now refer to the *full* internal name;
wenzelm
parents:
28088
diff
changeset

675 
bstring as before. INCOMPATIBILITY, not detected by ML typechecking! 
66ae1926482a
* Result facts now refer to the *full* internal name;
wenzelm
parents:
28088
diff
changeset

676 

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

677 
* Rules and tactics that read instantiations (read_instantiate, 
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

678 
res_inst_tac, thin_tac, subgoal_tac etc.) now demand a proper proof 
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

679 
context, which is required for parsing and typechecking. Moreover, 
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

680 
the variables are specified as plain indexnames, not string encodings 
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

681 
thereof. INCOMPATIBILITY. 
df85326af57c
* Rules and tactics that read instantiations now demand a proper context;
wenzelm
parents:
27200
diff
changeset

682 

27287  683 
* Disposed old type and term read functions (Sign.read_def_typ, 
684 
Sign.read_typ, Sign.read_def_terms, Sign.read_term, 

685 
Thm.read_def_cterms, Thm.read_cterm etc.). INCOMPATIBILITY, should 

686 
use regular Syntax.read_typ, Syntax.read_term, Syntax.read_typ_global, 

27269  687 
Syntax.read_term_global etc.; see also OldGoals.read_term as last 
688 
resort for legacy applications. 

689 

27380  690 
* Antiquotations: blockstructured compilation context indicated by 
27391  691 
\<lbrace> ... \<rbrace>; additional antiquotation forms: 
692 

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

693 
@{let ?pat = term}  term abbreviation (HO matching) 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

694 
@{note name = fact}  fact abbreviation 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

695 
@{thm fact}  singleton fact (with attributes) 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

696 
@{thms fact}  general fact (with attributes) 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

697 
@{lemma prop by method}  singleton goal 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

698 
@{lemma prop by meth1 meth2}  singleton goal 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

699 
@{lemma prop1 ... propN by method}  general goal 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

700 
@{lemma prop1 ... propN by meth1 meth2}  general goal 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

701 
@{lemma (open) ...}  open derivation 
27380  702 

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

703 

27979  704 
*** System *** 
705 

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

706 
* Multithreading for Poly/ML 5.1/5.2 is no longer supported, only for 
78688a5fafc2
multithreading support only for polyml5.2.1 or later;
wenzelm
parents:
28633
diff
changeset

707 
Poly/ML 5.2.1 or later. 
28254
d67ba23e0277
multithreading for Poly/ML 5.1 is no longer supported;
wenzelm
parents:
28252
diff
changeset

708 

28248  709 
* The Isabelle "emacs" tool provides a specific interface to invoke 
710 
Proof General / Emacs, with more explicit failure if that is not 

711 
installed (the old isabelleinterface script silently falls back on 

712 
isabelleprocess). The PROOFGENERAL_HOME setting determines the 

713 
installation location of the Proof General distribution. 

714 

27979  715 
* Isabelle/lib/classes/Pure.jar provides basic support to integrate 
716 
the Isabelle process into a JVM/Scala application. See 

717 
Isabelle/lib/jedit/plugin for a minimal example. (The obsolete Java 

718 
process wrapper has been discontinued.) 

719 

720 
* Status messages (with exact source position information) are 

721 
emitted, if proper markup print mode is enabled. This allows 

722 
userinterface components to provide detailed feedback on internal 

723 
prover operations. 

724 

725 
* Homegrown Isabelle font with unicode layout, see Isabelle/lib/fonts. 

726 

727 

27143  728 

27008  729 
New in Isabelle2008 (June 2008) 
730 
 

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

731 

25522  732 
*** General *** 
733 

27061  734 
* The Isabelle/Isar Reference Manual (isarref) has been reorganized 
735 
and updated, with formally checked references as hyperlinks. 

736 

25994  737 
* Theory loader: use_thy (and similar operations) no longer set the 
738 
implicit ML context, which was occasionally hard to predict and in 

739 
conflict with concurrency. INCOMPATIBILITY, use ML within Isar which 

740 
provides a proper context already. 

741 

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

742 
* Theory loader: oldstyle ML proof scripts being *attached* to a thy 
73efc70edeef
theory loader: discontinued *attached* ML scripts;
wenzelm
parents:
26315
diff
changeset

743 
file are no longer supported. INCOMPATIBILITY, regular 'uses' and 
73efc70edeef
theory loader: discontinued *attached* ML scripts;
wenzelm
parents:
26315
diff
changeset

744 
'use' within a theory file will do the job. 
73efc70edeef
theory loader: discontinued *attached* ML scripts;
wenzelm
parents:
26315
diff
changeset

745 

26650  746 
* Name space merge now observes canonical order, i.e. the second space 
747 
is inserted into the first one, while existing entries in the first 

26659  748 
space take precedence. INCOMPATIBILITY in rare situations, may try to 
26650  749 
swap theory imports. 
750 

27067  751 
* Syntax: symbol \<chi> is now considered a letter. Potential 
752 
INCOMPATIBILITY in identifier syntax etc. 

753 

754 
* Outer syntax: string tokens no longer admit escaped white space, 

755 
which was an accidental (undocumented) feature. INCOMPATIBILITY, use 

756 
white space without escapes. 

757 

758 
* Outer syntax: string tokens may contain arbitrary character codes 

759 
specified via 3 decimal digits (as in SML). E.g. "foo\095bar" for 

760 
"foo_bar". 

761 

25522  762 

25502  763 
*** Pure *** 
764 

26718  765 
* Contextdependent token translations. Default setup reverts locally 
766 
fixed variables, and adds hilite markup for undeclared frees. 

767 

26681  768 
* Unused theorems can be found using the new command 'unused_thms'. 
769 
There are three ways of invoking it: 

770 

771 
(1) unused_thms 

772 
Only finds unused theorems in the current theory. 

773 

774 
(2) unused_thms thy_1 ... thy_n  

775 
Finds unused theorems in the current theory and all of its ancestors, 

776 
excluding the theories thy_1 ... thy_n and all of their ancestors. 

777 

778 
(3) unused_thms thy_1 ... thy_n  thy'_1 ... thy'_m 

779 
Finds unused theorems in the theories thy'_1 ... thy'_m and all of 

780 
their ancestors, excluding the theories thy_1 ... thy_n and all of 

781 
their ancestors. 

782 

26718  783 
In order to increase the readability of the list produced by 
784 
unused_thms, theorems that have been created by a particular instance 

26874  785 
of a theory command such as 'inductive' or 'function' are considered 
786 
to belong to the same "group", meaning that if at least one theorem in 

26718  787 
this group is used, the other theorems in the same group are no longer 
788 
reported as unused. Moreover, if all theorems in the group are 

789 
unused, only one theorem in the group is displayed. 

790 

791 
Note that proof objects have to be switched on in order for 

792 
unused_thms to work properly (i.e. !proofs must be >= 1, which is 

26874  793 
usually the case when using Proof General with the default settings). 
26681  794 

26650  795 
* Authentic naming of facts disallows adhoc overwriting of previous 
796 
theorems within the same name space. INCOMPATIBILITY, need to remove 

797 
duplicate fact bindings, or even accidental fact duplications. Note 

798 
that tools may maintain dynamically scoped facts systematically, using 

799 
PureThy.add_thms_dynamic. 

800 

26660  801 
* Command 'hide' now allows to hide from "fact" name space as well. 
802 

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

803 
* Eliminated destructive theorem database, simpset, claset, and 
49ae9456eba9
purely functional setup of claset/simpset/clasimpset;
wenzelm
parents:
26495
diff
changeset

804 
clasimpset. Potential INCOMPATIBILITY, really need to observe linear 
49ae9456eba9
purely functional setup of claset/simpset/clasimpset;
wenzelm
parents:
26495
diff
changeset

805 
update of theories within ML code. 
26479  806 

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

807 
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory. 
ebbaa935eae0
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents:
26925
diff
changeset

808 
INCOMPATIBILITY, objectlogics depending on former Pure require 
ebbaa935eae0
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents:
26925
diff
changeset

809 
additional setup PureThy.old_appl_syntax_setup; objectlogics 
ebbaa935eae0
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents:
26925
diff
changeset

810 
depending on former CPure need to refer to Pure. 
26650  811 

26495  812 
* Commands 'use' and 'ML' are now purely functional, operating on 
26479  813 
theory/local_theory. Removed former 'ML_setup' (on theory), use 'ML' 
814 
instead. Added 'ML_val' as mere diagnostic replacement for 'ML'. 

815 
INCOMPATIBILITY. 

816 

26874  817 
* Command 'setup': discontinued implicit version with ML reference. 
26434  818 

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

819 
* Instantiation target allows for simultaneous specification of class 
9053fd546501
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents:
25961
diff
changeset

820 
instance operations together with an instantiation proof. 
9053fd546501
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents:
25961
diff
changeset

821 
Typechecking phase allows to refer to class operations uniformly. 
27067  822 
See src/HOL/Complex/Complex.thy for an Isar example and 
823 
src/HOL/Library/Eval.thy for an ML example. 

25502  824 

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

825 
* Indexing of literal facts: be more serious about including only 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

826 
facts from the visible specification/proof context, but not the 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

827 
background context (locale etc.). Affects `prop` notation and method 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

828 
"fact". INCOMPATIBILITY: need to name facts explicitly in rare 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

829 
situations. 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

830 

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

831 
* Method "cases", "induct", "coinduct": removed obsolete/undocumented 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

832 
"(open)" option, which used to expose internal bound variables to the 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

833 
proof text. 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

834 

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

835 
* Isar statements: removed obsolete case "rule_context". 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

836 
INCOMPATIBILITY, better use explicit fixes/assumes. 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

837 

26874  838 
* Locale proofs: default proof step now includes 'unfold_locales'; 
839 
hence 'proof' without argument may be used to unfold locale 

840 
predicates. 

26765  841 

842 

26762  843 
*** Document preparation *** 
844 

26914  845 
* Simplified pdfsetup.sty: color/hyperref is used unconditionally for 
846 
both pdf and dvi (hyperlinks usually work in xdvi as well); removed 

847 
obsolete thumbpdf setup (contemporary PDF viewers do this on the 

848 
spot); renamed link color from "darkblue" to "linkcolor" (default 

26920  849 
value unchanged, can be redefined via \definecolor); no longer sets 
850 
"a4paper" option (unnecessary or even intrusive). 

26914  851 

27008  852 
* Antiquotation @{lemma A method} proves proposition A by the given 
853 
method (either a method name or a method name plus (optional) method 

854 
arguments in parentheses) and prints A just like @{prop A}. 

26762  855 

856 

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

857 
*** HOL *** 
0ca80ce89001
moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents:
25459
diff
changeset

858 

27067  859 
* New primrec package. Specification syntax conforms in style to 
860 
definition/function/.... No separate induction rule is provided. The 

861 
"primrec" command distinguishes oldstyle and newstyle specifications 

862 
by syntax. The former primrec package is now named OldPrimrecPackage. 

863 
When adjusting theories, beware: constants stemming from newstyle 

864 
primrec specifications have authentic syntax. 

865 

866 
* Metis prover is now an order of magnitude faster, and also works 

867 
with multithreading. 

868 

869 
* Metis: the maximum number of clauses that can be produced from a 

870 
theorem is now given by the attribute max_clauses. Theorems that 

871 
exceed this number are ignored, with a warning printed. 

872 

873 
* Sledgehammer no longer produces structured proofs by default. To 

874 
enable, declare [[sledgehammer_full = true]]. Attributes 

875 
reconstruction_modulus, reconstruction_sorts renamed 

876 
sledgehammer_modulus, sledgehammer_sorts. INCOMPATIBILITY. 

877 

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

878 
* Method "induct_scheme" derives userspecified induction rules 
27067  879 
from wellfounded induction and completeness of patterns. This factors 
880 
out some operations that are done internally by the function package 

881 
and makes them available separately. See 

882 
src/HOL/ex/Induction_Scheme.thy for examples. 

883 

884 
* More flexible generation of measure functions for termination 

885 
proofs: Measure functions can be declared by proving a rule of the 

886 
form "is_measure f" and giving it the [measure_function] attribute. 

887 
The "is_measure" predicate is logically meaningless (always true), and 

888 
just guides the heuristic. To find suitable measure functions, the 

889 
termination prover sets up the goal "is_measure ?f" of the appropriate 

890 
type and generates all solutions by prologstyle backwards proof using 

891 
the declared rules. 

892 

893 
This setup also deals with rules like 

894 

895 
"is_measure f ==> is_measure (list_size f)" 

896 

897 
which accommodates nested datatypes that recurse through lists. 

898 
Similar rules are predeclared for products and option types. 

899 

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

900 
* Turned the type of sets "'a set" into an abbreviation for "'a => bool" 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

901 

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

902 
INCOMPATIBILITIES: 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

903 

27008  904 
 Definitions of overloaded constants on sets have to be replaced by 
905 
definitions on => and bool. 

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

906 

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

907 
 Some definitions of overloaded operators on sets can now be proved 
27008  908 
using the definitions of the operators on => and bool. Therefore, 
909 
the following theorems have been renamed: 

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

910 

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

911 
subset_def > subset_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

912 
psubset_def > psubset_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

913 
set_diff_def > set_diff_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

914 
Compl_def > Compl_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

915 
Sup_set_def > Sup_set_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

916 
Inf_set_def > Inf_set_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

917 
sup_set_def > sup_set_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

918 
inf_set_def > inf_set_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

919 

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

920 
 Due to the incompleteness of the HO unification algorithm, some 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

921 
rules such as subst may require manual instantiation, if some of 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

922 
the unknowns in the rule is a set. 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

923 

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

924 
 Higher order unification and forward proofs: 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

925 
The proof pattern 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

926 

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

927 
have "P (S::'a set)" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

928 
then have "EX S. P S" .. 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

929 

27008  930 
no longer works (due to the incompleteness of the HO unification 
931 
algorithm) and must be replaced by the pattern 

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

932 

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

933 
have "EX S. P S" 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

934 
proof 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

935 
show "P S" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

936 
qed 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

937 

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

938 
 Calculational reasoning with subst (or similar rules): 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

939 
The proof pattern 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

940 

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

941 
have "P (S::'a set)" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

942 
also have "S = T" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

943 
finally have "P T" . 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

944 

27008  945 
no longer works (for similar reasons as the previous example) and 
946 
must be replaced by something like 

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

947 

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

948 
have "P (S::'a set)" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

949 
moreover have "S = T" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

950 
ultimately have "P T" by simp 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

951 

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

952 
 Tactics or packages written in ML code: 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

953 
Code performing pattern matching on types via 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

954 

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

955 
Type ("set", [T]) => ... 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

956 

27008  957 
must be rewritten. Moreover, functions like strip_type or 
958 
binder_types no longer return the right value when applied to a 

959 
type of the form 

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

960 

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

961 
T1 => ... => Tn => U => bool 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

962 

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

963 
rather than 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

964 

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

965 
T1 => ... => Tn => U set 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

966 

26874  967 
* Merged theories Wellfounded_Recursion, Accessible_Part and 
27067  968 
Wellfounded_Relations to theory Wellfounded. 
26748
4d51ddd6aa5c
Merged theories about wellfoundedness into one: Wellfounded.thy
krauss
parents:
26724
diff
changeset

969 

26513  970 
* Explicit class "eq" for executable equality. INCOMPATIBILITY. 
971 

26874  972 
* Class finite no longer treats UNIV as class parameter. Use class 
973 
enum from theory Library/Enum instead to achieve a similar effect. 

26445  974 
INCOMPATIBILITY. 
975 

26874  976 
* Theory List: rule list_induct2 now has explicitly named cases "Nil" 
977 
and "Cons". INCOMPATIBILITY. 

978 

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

979 
* HOL (and FOL): renamed variables in rules imp_elim and swap. 
d5883907c514
HOL (and FOL): renamed variables in rules imp_elim and swap;
wenzelm
parents:
26401
diff
changeset

980 
Potential INCOMPATIBILITY. 
d5883907c514
HOL (and FOL): renamed variables in rules imp_elim and swap;
wenzelm
parents:
26401
diff
changeset

981 

26874  982 
* Theory Product_Type: duplicated lemmas split_Pair_apply and 
983 
injective_fst_snd removed, use split_eta and prod_eqI instead. 

984 
Renamed upd_fst to apfst and upd_snd to apsnd. INCOMPATIBILITY. 

26355  985 

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

986 
* Theory Nat: removed redundant lemmas that merely duplicate lemmas of 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

987 
the same name in theory Orderings: 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

988 

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

989 
less_trans 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

990 
less_linear 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

991 
le_imp_less_or_eq 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

992 
le_less_trans 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

993 
less_le_trans 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

994 
less_not_sym 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

995 
less_asym 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

996 

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

997 
Renamed less_imp_le to less_imp_le_nat, and less_irrefl to 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

998 
less_irrefl_nat. Potential INCOMPATIBILITY due to more general types 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

999 
and different variable names. 
26315
cb3badaa192e
removed redundant less_trans, less_linear, le_imp_less_or_eq, le_less_trans, less_le_trans (cf. Orderings.thy);
wenzelm
parents:
26231
diff
changeset

1000 

26231  1001 
* Library/Option_ord.thy: Canonical order on option type. 
1002 

27008  1003 
* Library/RBT.thy: Redblack trees, an efficient implementation of 
1004 
finite maps. 

26197  1005 

26231  1006 
* Library/Countable.thy: Type class for countable types. 
1007 

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

1008 
* Theory Int: The representation of numerals has changed. The infix 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1009 
operator BIT and the bit datatype with constructors B0 and B1 have 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1010 
disappeared. INCOMPATIBILITY, use "Int.Bit0 x" and "Int.Bit1 y" in 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1011 
place of "x BIT bit.B0" and "y BIT bit.B1", respectively. Theorems 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1012 
involving BIT, B0, or B1 have been renamed with "Bit0" or "Bit1" 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1013 
accordingly. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1014 

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

1015 
* Theory Nat: definition of <= and < on natural numbers no longer 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1016 
depend on wellfounded relations. INCOMPATIBILITY. Definitions 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1017 
le_def and less_def have disappeared. Consider lemmas not_less 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1018 
[symmetric, where ?'a = nat] and less_eq [symmetric] instead. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1019 

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

1020 
* Theory Finite_Set: locales ACf, ACe, ACIf, ACIfSL and ACIfSLlin 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1021 
(whose purpose mainly is for various fold_set functionals) have been 
26874  1022 
abandoned in favor of the existing algebraic classes 
26180
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1023 
ab_semigroup_mult, comm_monoid_mult, ab_semigroup_idem_mult, 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1024 
lower_semilattice (resp. upper_semilattice) and linorder. 
26139  1025 
INCOMPATIBILITY. 
26041
c2e15e65165f
locales ACf, ACIf, ACIfSL and ACIfSLlin have been abandoned in favour of the existing algebraic classes ab_semigroup_mult, ab_semigroup_idem_mult, lower_semilattice (resp. uper_semilattice) and linorder
haftmann
parents:
26013
diff
changeset

1026 

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

1027 
* Theory Transitive_Closure: induct and cases rules now declare proper 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1028 
case_names ("base" and "step"). INCOMPATIBILITY. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1029 

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

1030 
* Theorem Inductive.lfp_ordinal_induct generalized to complete 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1031 
lattices. The form setspecific version is available as 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1032 
Inductive.lfp_ordinal_induct_set. 
26013
8764a1f1253b
Theorem Inductive.lfp_ordinal_induct generalized to complete lattices
haftmann
parents:
26006
diff
changeset

1033 

26874  1034 
* Renamed theorems "power.simps" to "power_int.simps". 
27067  1035 
INCOMPATIBILITY. 
25961  1036 

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

1037 
* Class semiring_div provides basic abstract properties of semirings 
25942  1038 
with division and modulo operations. Subsumes former class dvd_mod. 
1039 

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

1040 
* Merged theories IntDef, Numeral and IntArith into unified theory 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1041 
Int. INCOMPATIBILITY. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1042 

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

1043 
* Theory Library/Code_Index: type "index" now represents natural 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1044 
numbers rather than integers. INCOMPATIBILITY. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1045 

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

1046 
* New class "uminus" with operation "uminus" (split of from class 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1047 
"minus" which now only has operation "minus", binary). 
25919
8b1c0d434824
joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents:
25900
diff
changeset

1048 
INCOMPATIBILITY. 
8b1c0d434824
joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents:
25900
diff
changeset

1049 

25522  1050 
* Constants "card", "internal_split", "option_map" now with authentic 
25919
8b1c0d434824
joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents:
25900
diff
changeset

1051 
syntax. INCOMPATIBILITY. 
25522  1052 

1053 
* Definitions subset_def, psubset_def, set_diff_def, Compl_def, 

1054 
le_bool_def, less_bool_def, le_fun_def, less_fun_def, inf_bool_def, 

1055 
sup_bool_def, Inf_bool_def, Sup_bool_def, inf_fun_def, sup_fun_def, 

1056 
Inf_fun_def, Sup_fun_def, inf_set_def, sup_set_def, Inf_set_def, 

1057 
Sup_set_def, le_def, less_def, option_map_def now with object 

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

1058 
equality. INCOMPATIBILITY. 
25464
0ca80ce89001
moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents:
25459
diff
changeset

1059 

25705  1060 
* Records. Removed K_record, and replaced it by pure lambda term 
25726
9728f319ffc6
* Metis prover an order of magnitude faster, works with multithreading.
wenzelm
parents:
25712
diff
changeset

1061 
%x. c. The simplifier setup is now more robust against eta expansion. 
25705  1062 
INCOMPATIBILITY: in cases explicitly referring to K_record. 
25464
0ca80ce89001
moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents:
25459
diff
changeset

1063 

27067  1064 
* Library/Multiset: {#a, b, c#} abbreviates {#a#} + {#b#} + {#c#}. 
1065 

1066 
* Library/ListVector: new theory of arithmetic vector operations. 

1067 

1068 
* Library/Order_Relation: new theory of various orderings as sets of 

1069 
pairs. Defines preorders, partial orders, linear orders and 

1070 
wellorders on sets and on types. 

26877  1071 

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

1072 

26197  1073 
*** ZF *** 
1074 

26874  1075 
* Renamed some theories to allow to loading both ZF and HOL in the 
1076 
same session: 

1077 

1078 
Datatype > Datatype_ZF 

1079 
Inductive > Inductive_ZF 

1080 
Int > Int_ZF 

1081 
IntDiv > IntDiv_ZF 

1082 
Nat > Nat_ZF 

1083 
List > List_ZF 

1084 
Main > Main_ZF 

1085 

1086 
INCOMPATIBILITY: ZF theories that import individual theories below 

1087 
Main might need to be adapted. Regular theory Main is still 

1088 
available, as trivial extension of Main_ZF. 

26197  1089 

1090 

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

1091 
*** ML *** 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

1092 

27067  1093 
* ML within Isar: antiquotation @{const name} or @{const 
1094 
name(typargs)} produces staticallychecked Const term. 

1095 

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

1096 
* Functor NamedThmsFun: data is available to the user as dynamic fact 
26724
ff6ff3a9010e
NamedThmsFun: removed obsolete print command  facts are accesible via dynamic name;
wenzelm
parents:
26718
diff
changeset

1097 
(of the same name). Removed obsolete print command. 
26401
e7a94081dce7
Functor NamedThmsFun: data is available to the user as dynamic fact;
wenzelm
parents:
26387
diff
changeset

1098 

27067  1099 
* Removed obsolete "use_legacy_bindings" function. 
26188  1100 

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

1101 
* The ``print mode'' is now a threadlocal value derived from a global 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

1102 
template (the former print_mode reference), thus access becomes 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

1103 
noncritical. The global print_mode reference is for session 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

1104 
management only; usercode should use print_mode_value, 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

1105 
print_mode_active, PrintMode.setmp etc. INCOMPATIBILITY. 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

1106 

26874  1107 
* Functions system/system_out provide a robust way to invoke external 
29161
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

1108 
shell commands, with propagation of interrupts (requires Poly/ML 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

1109 
5.2.1). Do not use OS.Process.system etc. from the basis library! 
26222
edf6473ac9e9
* system/system_out provides a robust way to invoke external shell
wenzelm
parents:
26218
diff
changeset

1110 

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

1111 

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

1112 
*** System *** 
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

1113 

25971  1114 
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs  
1115 
in accordance with Proof General 3.7, which prefers GNU emacs. 

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

1116 

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

1117 
* isatool tty runs Isabelle process with plain tty interaction; 
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

1118 
optional line editor may be specified via ISABELLE_LINE_EDITOR 
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

1119 
setting, the default settings attempt to locate "ledit" and "rlwrap". 
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

1120 

25651  1121 
* isatool browser now works with Cygwin as well, using general 
1122 
"javapath" function defined in Isabelle process environment. 

1123 

27067  1124 
* YXML notation provides a simple and efficient alternative to 
1125 
standard XML transfer syntax. See src/Pure/General/yxml.ML and 

1126 
isatool yxml as described in the Isabelle system manual. 

25651  1127 

25652  1128 
* JVM class isabelle.IsabelleProcess (located in Isabelle/lib/classes) 
25651  1129 
provides general wrapper for managing an Isabelle process in a robust 
1130 
fashion, with ``cooked'' output from stdin/stderr. 

1131 

25855  1132 
* Rudimentary Isabelle plugin for jEdit (see Isabelle/lib/jedit), 
1133 
based on Isabelle/JVM process wrapper (see Isabelle/lib/classes). 

1134 

27067  1135 
* Removed obsolete THIS_IS_ISABELLE_BUILD feature. NB: the documented 
1136 
way of changing the user's settings is via 

1137 
ISABELLE_HOME_USER/etc/settings, which is a fully featured bash 

1138 
script. 

1139 

1140 
* Multithreading.max_threads := 0 refers to the number of actual CPU 

1141 
cores of the underlying machine, which is a good starting point for 

1142 
optimal performance tuning. The corresponding usedir option M allows 

1143 
"max" as an alias for "0". WARNING: does not work on certain versions 

1144 
of Mac OS (with Poly/ML 5.1). 

1145 

1146 
* isabelleprocess: nonML sessions are run with "nice", to reduce the 

1147 
adverse effect of Isabelle flooding interactive frontends (notably 

1148 
ProofGeneral / XEmacs). 

1149 

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

1150 

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

1151 

25429  1152 
New in Isabelle2007 (November 2007) 
1153 
 

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

1154 

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

1155 
*** General *** 
58a306d9f736
* Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents:
17725
diff
changeset

1156 

22826  1157 
* More uniform information about legacy features, notably a 
1158 
warning/error of "Legacy feature: ...", depending on the state of the 

23367  1159 
tolerate_legacy_features flag (default true). FUTURE INCOMPATIBILITY: 
1160 
legacy features will disappear eventually. 

22826  1161 

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

1162 
* Theory syntax: the header format ``theory A = B + C:'' has been 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

1163 
discontinued in favour of ``theory A imports B C begin''. Use isatool 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

1164 
fixheaders to convert existing theory files. INCOMPATIBILITY. 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

1165 

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

1166 
* Theory syntax: the old nonIsar theory file format has been 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

1167 
discontinued altogether. Note that ML proof scripts may still be used 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

1168 
with Isar theories; migration is usually quite simple with the ML 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

1169 
function use_legacy_bindings. INCOMPATIBILITY. 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

1170 

22871  1171 
* Theory syntax: some popular names (e.g. 'class', 'declaration', 
1172 
'fun', 'help', 'if') are now keywords. INCOMPATIBILITY, use double 

1173 
quotes. 

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

1174 

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

1175 
* Theory loader: be more serious about observing the static theory 
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1176 
header specifications (including optional directories), but not the 
24172
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1177 
accidental file locations of previously successful loads. The strict 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1178 
update policy of former update_thy is now already performed by 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1179 
use_thy, so the former has been removed; use_thys updates several 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1180 
theories simultaneously, just as 'imports' within a theory header 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1181 
specification, but without merging the results. Potential 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1182 
INCOMPATIBILITY: may need to refine theory headers and commands 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1183 
ROOT.ML which depend on load order. 
23888
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1184 

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

1185 
* Theory loader: optional support for contentbased file 
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1186 
identification, instead of the traditional scheme of full physical 
23889  1187 
path plus date stamp; configured by the ISABELLE_FILE_IDENT setting 
23888
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1188 
(cf. the system manual). The new scheme allows to work with 
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1189 
nonfinished theories in persistent session images, such that source 
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1190 
files may be moved later on without requiring reloads. 
babe337cce2d
* Theory loader: be more serious about observing the static theory header specifications;
wenzelm
parents:
23881
diff
changeset

1191 

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

1192 
* Theory loader: oldstyle ML proof scripts being *attached* to a thy 
8bdf5ca5871f
* Theory loader: oldstyle ML proof scripts are considered a legacy feature;
wenzelm
parents:
24172
diff
changeset

1193 
file (with the same base name as the theory) are considered a legacy 
24800  1194 
feature, which will disappear eventually. Even now, the theory loader 
1195 
no longer maintains dependencies on such files. 

1196 

1197 
* Syntax: the scope for resolving ambiguities via typeinference is 

1198 
now limited to individual terms, instead of whole simultaneous 

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

1199 
specifications as before. This greatly reduces the complexity of the 
4714e04fb8e9
* Syntax: scope for resolving ambiguities via typeinference is now limited to individual terms;
wenzelm
parents:
24213
diff
changeset

1200 
syntax module and improves flexibility by separating parsing and 
4714e04fb8e9
* Syntax: scope for resolving ambiguities via typeinference is now limited to individual terms;
wenzelm
parents:
24213
diff
changeset

1201 
typechecking. INCOMPATIBILITY: additional typeconstraints (explicit 
4714e04fb8e9
* Syntax: scope for resolving ambiguities via typeinference is now limited to individual terms;
wenzelm
parents:
24213
diff
changeset

1202 
'fixes' etc.) are required in rare situations. 
4714e04fb8e9
* Syntax: scope for resolving ambiguities via typeinference is now limited to individual terms;
wenzelm
parents:
24213
diff
changeset

1203 

25034  1204 
* Syntax: constants introduced by newstyle packages ('definition', 
1205 
'abbreviation' etc.) are passed through the syntax module in 

1206 
``authentic mode''. This means that associated mixfix annotations 

1207 
really stick to such constants, independently of potential name space 

1208 
ambiguities introduced later on. INCOMPATIBILITY: constants in parse 

1209 
trees are represented slightly differently, may need to adapt syntax 

1210 
translations accordingly. Use CONST marker in 'translations' and 

1211 
@{const_syntax} antiquotation in 'parse_translation' etc. 

1212 

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

1213 
* Legacy goal package: reduced interface to the bare minimum required 
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1214 
to keep existing proof scripts running. Most other userlevel 
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1215 
functions are now part of the OldGoals structure, which is *not* open 
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1216 
by default (consider isatool expandshort before open OldGoals). 
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1217 
Removed top_sg, prin, printyp, pprint_term/typ altogether, because 
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1218 
these tend to cause confusion about the actual goal (!) context being 
2602be0d99ae
* Legacy goal package: reduced interface to the bare minimum required to keep existing proof scripts running.
wenzelm
parents:
17918
diff
changeset

1219 
used here, which is not necessarily the same as the_context(). 
17918
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

1220 

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

1221 
* Command 'find_theorems': supports "*" wildcard in "name:" 
d0e3f790bd73
updated 'find_theorems'  moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents:
23377
diff
changeset

1222 
criterion; "with_dups" option. Certain ProofGeneral versions might 
d0e3f790bd73
updated 'find_theorems'  moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents:
23377
diff
changeset

1223 
support a specific search form (see ProofGeneral/CHANGES). 
22965  1224 

20370  1225 
* The ``prems limit'' option (cf. ProofContext.prems_limit) is now 1 
1226 
by default, which means that "prems" (and also "fixed variables") are 

1227 
suppressed from proof state output. Note that the ProofGeneral 

1228 
settings mechanism allows to change and save options persistently, but 

1229 
older versions of Isabelle will fail to start up if a negative prems 

1230 
limit is imposed. 

1231 

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

1232 
* Local theory targets may be specified by nonnested blocks of 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1233 
``context/locale/class ... begin'' followed by ``end''. The body may 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1234 
contain definitions, theorems etc., including any derived mechanism 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1235 
that has been implemented on top of these primitives. This concept 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1236 
generalizes the existing ``theorem (in ...)'' towards more versatility 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1237 
and scalability. 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1238 

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

1239 
* Proof General interface: proper undo of final 'end' command; 
0574f192b78a
* Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
wenzelm
parents:
21896
diff
changeset

1240 
discontinued Isabelle/classic mode (ML proof scripts). 
0574f192b78a
* Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
wenzelm
parents:
21896
diff
changeset

1241 

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

1242 

17865  1243 
*** Document preparation *** 
1244 

21717  1245 
* Added antiquotation @{theory name} which prints the given name, 
1246 
after checking that it refers to a valid ancestor theory in the 

1247 
current context. 

21339  1248 

17869  1249 
* Added antiquotations @{ML_type text} and @{ML_struct text} which 
1250 
check the given source text as ML type/structure, printing verbatim. 

17865  1251 

21717  1252 
* Added antiquotation @{abbrev "c args"} which prints the abbreviation 
1253 
"c args == rhs" given in the current context. (Any number of 

21735  1254 
arguments may be given on the LHS.) 
21717  1255 

1256 

17779  1257 
*** Pure *** 
1258 

24800  1259 
* The 'class' package offers a combination of axclass and locale to 
25129  1260 
achieve Haskelllike type classes in Isabelle. Definitions and 
1261 
theorems within a class context produce both relative results (with 

1262 
implicit parameters according to the locale context), and polymorphic 

1263 
constants with qualified polymorphism (according to the class 

1264 
context). Within the body context of a 'class' target, a separate 

1265 
syntax layer ("user space type system") takes care of converting 

1266 
between global polymorphic consts and internal locale representation. 

25177  1267 
See src/HOL/ex/Classpackage.thy for examples (as well as main HOL). 
25184  1268 
"isatool doc classes" provides a tutorial. 
20807  1269 

25199  1270 
* Generic code generator framework allows to generate executable 
24800  1271 
code for ML and Haskell (including Isabelle classes). A short usage 
1272 
sketch: 

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

1273 

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

1274 
internal compilation: 
25199  1275 
export_code <list of constants (term syntax)> in SML 
20453
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1276 
writing SML code to a file: 
25199  1277 
export_code <list of constants (term syntax)> in SML <filename> 
22735  1278 
writing OCaml code to a file: 
25199  1279 
export_code <list of constants (term syntax)> in OCaml <filename> 
20188
8b22026445af
added notes on class_package.ML and codegen_package.ML
haftmann
parents:
20169
diff
changeset

1280 
writing Haskell code to a bunch of files: 
25199  1281 
export_code <list of constants (term syntax)> in Haskell <filename> 
1282 

1283 
evaluating closed propositions to True/False using code generation: 

25184  1284 
method ``eval'' 
1285 

1286 
Reasonable default setup of framework in HOL. 

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

1287 

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

1288 
Theorem attributs for selecting and transforming function equations theorems: 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1289 

22845  1290 
[code fun]: select a theorem as function equation for a specific constant 
1291 
[code fun del]: deselect a theorem as function equation for a specific constant 

1292 
[code inline]: select an equation theorem for unfolding (inlining) in place 

1293 
[code inline del]: deselect an equation theorem for unfolding (inlining) in place 

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

1294 

22735  1295 
Userdefined serializations (target in {SML, OCaml, Haskell}): 
20453
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1296 

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

1297 
code_const <andlist of constants (term syntax)> 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1298 
{(target) <andlist of const target syntax>}+ 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1299 

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

1300 
code_type <andlist of type constructors> 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1301 
{(target) <andlist of type target syntax>}+ 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1302 

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

1303 
code_instance <andlist of instances> 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1304 
{(target)}+ 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1305 
where instance ::= <type constructor> :: <class> 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1306 

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

1307 
code_class <and_list of classes> 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1308 
{(target) <andlist of class target syntax>}+ 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1309 
where class target syntax ::= <class name> {where {<classop> == <target syntax>}+}? 
855f07fabd76
final syntax for some Isar code generator keywords
haftmann
parents:
20375
diff
changeset

1310 

25199  1311 
code_instance and code_class only are effective to target Haskell. 
22735  1312 

25177  1313 
For example usage see src/HOL/ex/Codegenerator.thy and 
1314 
src/HOL/ex/Codegenerator_Pretty.thy. A separate tutorial on code 

24800  1315 
generation from Isabelle/HOL theories is available via "isatool doc 
1316 
codegen". 

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

1317 

25129  1318 
* Code generator: consts in 'consts_code' Isar commands are now 
1319 
referred to by usual term syntax (including optional type 

1320 
annotations). 

1321 

19254  1322 
* Command 'no_translations' removes translation rules from theory 
1323 
syntax. 

1324 

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

1325 
* Overloaded definitions are now actually checked for acyclic 
19714  1326 
dependencies. The overloading scheme is slightly more general than 
1327 
that of Haskell98, although Isabelle does not demand an exact 

1328 
correspondence to type class and instance declarations. 

1329 
INCOMPATIBILITY, use ``defs (unchecked overloaded)'' to admit more 

1330 
exotic versions of overloading  at the discretion of the user! 

19711  1331 

1332 
Polymorphic constants are represented via type arguments, i.e. the 

1333 
instantiation that matches an instance against the most general 

1334 
declaration given in the signature. For example, with the declaration 

1335 
c :: 'a => 'a => 'a, an instance c :: nat => nat => nat is represented 

1336 
as c(nat). Overloading is essentially simultaneous structural 

1337 
recursion over such type arguments. Incomplete specification patterns 

19714  1338 
impose global constraints on all occurrences, e.g. c('a * 'a) on the 
19715  1339 
LHS means that more general c('a * 'b) will be disallowed on any RHS. 
19714  1340 
Command 'print_theory' outputs the normalized system of recursive 
1341 
equations, see section "definitions". 

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

1342 

24086  1343 
* Configuration options are maintained within the theory or proof 
1344 
context (with name and type bool/int/string), providing a very simple 

1345 
interface to a poorman's version of general context data. Tools may 

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

1346 
declare options in ML (e.g. using Attrib.config_int) and then refer to 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1347 
these values using Config.get etc. Users may change options via an 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1348 
associated attribute of the same name. This form of context 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1349 
declaration works particularly well with commands 'declare' or 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1350 
'using', for example ``declare [[foo = 42]]''. Thus it has become 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1351 
very easy to avoid global references, which would not observe Isar 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1352 
toplevel undo/redo and fail to work with multithreading. 
24086  1353 

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

1354 
Various global ML references of Pure and HOL have been turned into 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1355 
configuration options: 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1356 

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

1357 
Unify.search_bound unify_search_bound 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1358 
Unify.trace_bound unify_trace_bound 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1359 
Unify.trace_simp unify_trace_simp 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1360 
Unify.trace_types unify_trace_types 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1361 
Simplifier.simp_depth_limit simp_depth_limit 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1362 
Blast.depth_limit blast_depth_limit 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1363 
DatatypeProp.dtK datatype_distinctness_limit 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1364 
fast_arith_neq_limit fast_arith_neq_limit 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1365 
fast_arith_split_limit fast_arith_split_limit 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1366 

24086  1367 
* Named collections of theorems may be easily installed as context 
24800  1368 
data using the functor NamedThmsFun (see also 
24086  1369 
src/Pure/Tools/named_thms.ML). The user may add or delete facts via 
24110
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1370 
attributes; there is also a toplevel print command. This facility is 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1371 
just a common case of general context data, which is the preferred way 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1372 
for anything more complex than just a list of facts in canonical 
4ab3084e311c
tuned config options: eliminated separate attribute "option";
wenzelm
parents:
24086
diff
changeset

1373 
order. 
24086  1374 

24032  1375 
* Isar: command 'declaration' augments a local theory by generic 
1376 
declaration functions written in ML. This enables arbitrary content 

1377 
being added to the context, depending on a morphism that tells the 

1378 
difference of the original declaration context wrt. the application 

1379 
context encountered later on. 

1380 

1381 
* Isar: proper interfaces for simplification procedures. Command 

1382 
'simproc_setup' declares named simprocs (with match patterns, and body 

1383 
text in ML). Attribute "simproc" adds/deletes simprocs in the current 
