author  wenzelm 
Thu, 02 Apr 2009 15:07:00 +0200  
changeset 30855  c22436e6d350 
parent 30849  0e5ec6d2c1d9 
child 30904  cc6a6047a10f 
child 30930  11010e5f18f0 
permissions  rwrr 
5363  1 
Isabelle NEWS  history userrelevant changes 
2 
============================================== 

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New in Isabelle2009 (April 2009) 
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27599  7 
*** General *** 
8 

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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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11 

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 The main Isabelle tool wrapper is now called "isabelle" instead of 
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"isatool." 
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14 

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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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 The former "isabelleinterface" and its alias "Isabelle" have been 
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removed (interfaces are now regular Isabelle tools). 
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20 

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21 
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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28 
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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34 

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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 to cause 
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surprises on caseinsensitive filesystems (such as Mac OS). 
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38 

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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, in order to use the new ~/.isabelle uniformly. 
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* Proofs of fully specified statements are run in parallel on 
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multicore systems. A speedup factor of 2.5 to 3.2 can be expected on 
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a regular 4core machine, if the initial heap space is made reasonably 
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large (cf. Poly/ML option H). (Requires Poly/ML 5.2.1 or later.) 
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* The main reference manuals ("isarref", "implementation", and 
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"system") have been updated and extended. Formally checked references 
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as hyperlinks are now available uniformly. 
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27599  55 
*** Pure *** 
56 

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* Complete reimplementation of locales. INCOMPATIBILITY in several 
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respects. The most important changes are listed below. See the 
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Tutorial on Locales ("locales" manual) for details. 
29253  60 

61 
 In locale expressions, instantiation replaces renaming. Parameters 

62 
must be declared in a for clause. To aid compatibility with previous 

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parameter inheritance, in locale declarations, parameters that are not 

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

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with their syntax at the beginning of the for clause. 

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67 
 Syntax from abbreviations and definitions in locales is available in 

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locale expressions and context elements. The latter is particularly 

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useful in locale declarations. 

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 More flexible mechanisms to qualify names generated by locale 

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expressions. Qualifiers (prefixes) may be specified in locale 

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expressions, and can be marked as mandatory (syntax: "name!:") or 
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optional (syntax "name?:"). The default depends for plain "name:" 
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depends on the situation where a locale expression is used: in 
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commands 'locale' and 'sublocale' prefixes are optional, in 
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'interpretation' and 'interpret' prefixes are mandatory. The old 
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implicit qualifiers derived from the parameter names of a locale are 
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no longer generated. 
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 Command "sublocale l < e" replaces "interpretation l < e". The 
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instantiation clause in "interpretation" and "interpret" (square 
83 
brackets) is no longer available. Use locale expressions. 

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 When converting proof scripts, mandatory qualifiers in 
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'interpretation' and 'interpret' should be retained by default, even 
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if this is an INCOMPATIBILITY compared to former behavior. In the 
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worst case, use the "name?:" form for nonmandatory ones. Qualifiers 
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in locale expressions range over a single locale instance only. 
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90 

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 Dropped locale element "includes". This is a major INCOMPATIBILITY. 
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In existing theorem specifications replace the includes element by the 
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respective context elements of the included locale, omitting those 
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that are already present in the theorem specification. Multiple 
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assume elements of a locale should be replaced by a single one 
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involving the locale predicate. In the proof body, declarations (most 
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notably theorems) may be regained by interpreting the respective 
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locales in the proof context as required (command "interpret"). 
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If using "includes" in replacement of a target solely because the 
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parameter types in the theorem are not as general as in the target, 
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consider declaring a new locale with additional type constraints on 
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the parameters (context element "constrains"). 
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104 

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 Discontinued "locale (open)". INCOMPATIBILITY. 
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106 

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 Locale 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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109 
methods intro_locales and unfold_locales to clarify. 
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110 

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 Locale interpretation commands no longer accept interpretation 
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attributes. INCOMPATIBILITY. 
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113 

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* Class declaration: socalled "base sort" must not be given in import 
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115 
list any longer, but is inferred from the specification. Particularly 
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116 
in HOL, write 
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117 

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class foo = ... 
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119 

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instead of 
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121 

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class foo = type + ... 
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123 

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* Class target: global versions of theorems stemming do not carry a 
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parameter prefix any longer. INCOMPATIBILITY. 
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126 

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* Class 'instance' command no longer accepts attached definitions. 
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INCOMPATIBILITY, use proper 'instantiation' target instead. 
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129 

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* Recovered hiding of consts, which was accidentally broken in 
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131 
Isabelle2007. Potential INCOMPATIBILITY, ``hide const c'' really 
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132 
makes c inaccessible; consider using ``hide (open) const c'' instead. 
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133 

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134 
* Slightly more coherent Pure syntax, with updated documentation in 
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135 
isarref manual. Removed locales meta_term_syntax and 
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136 
meta_conjunction_syntax: TERM and &&& (formerly &&) are now permanent, 
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137 
INCOMPATIBILITY in rare situations. Note that &&& should not be used 
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138 
directly in regular applications. 
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139 

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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). 
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142 

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* Removed exotic 'token_translation' command. INCOMPATIBILITY, use ML 
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144 
interface with 'setup' command instead. 
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145 

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* Command 'local_setup' is similar to 'setup', but operates on a local 
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147 
theory context. 
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148 

28114  149 
* The 'axiomatization' command now only works within a global theory 
150 
context. INCOMPATIBILITY. 

151 

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* Goaldirected proof now enforces strict proof irrelevance wrt. sort 
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153 
hypotheses. Sorts required in the course of reasoning need to be 
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154 
covered by the constraints in the initial statement, completed by the 
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155 
type instance information of the background theory. Nontrivial sort 
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156 
hypotheses, which rarely occur in practice, may be specified via 
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157 
vacuous propositions of the form SORT_CONSTRAINT('a::c). For example: 
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158 

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159 
lemma assumes "SORT_CONSTRAINT('a::empty)" shows False ... 
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160 

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161 
The result contains an implicit sort hypotheses as before  
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162 
SORT_CONSTRAINT premises are eliminated as part of the canonical rule 
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163 
normalization. 
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164 

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165 
* Generalized Isar history, with support for linear undo, direct state 
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166 
addressing etc. 
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167 

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168 
* Changed defaults for unify configuration options: 
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169 

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170 
unify_trace_bound = 50 (formerly 25) 
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171 
unify_search_bound = 60 (formerly 30) 
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172 

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173 
* Different bookkeeping for code equations (INCOMPATIBILITY): 
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174 

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175 
a) On theory merge, the last set of code equations for a particular 
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176 
constant is taken (in accordance with the policy applied by other 
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177 
parts of the code generator framework). 
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178 

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179 
b) Code equations stemming from explicit declarations (e.g. code 
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180 
attribute) gain priority over default code equations stemming 
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181 
from definition, primrec, fun etc. 
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182 

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183 
* Keyword 'code_exception' now named 'code_abort'. INCOMPATIBILITY. 
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184 

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185 
* Unified theorem tables for both code code generators. Thus [code 
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186 
func] has disappeared and only [code] remains. INCOMPATIBILITY. 
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188 
* Command 'find_consts' searches for constants based on type and name 

189 
patterns, e.g. 

29883  190 

191 
find_consts "_ => bool" 

192 

30106  193 
By default, matching is against subtypes, but it may be restricted to 
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194 
the whole type. Searching by name is possible. Multiple queries are 
30106  195 
conjunctive and queries may be negated by prefixing them with a 
196 
hyphen: 

29883  197 

198 
find_consts strict: "_ => bool" name: "Int" "int => int" 

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199 

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200 
* New 'find_theorems' criterion "solves" matches theorems that 
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201 
directly solve the current goal (modulo higherorder unification). 
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202 

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203 
* Auto solve feature for main theorem statements: whenever a new goal 
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204 
is stated, "find_theorems solves" is called; any theorems that could 
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205 
solve the lemma directly are listed as part of the goal state. 
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206 
Cf. associated options in Proof General Isabelle settings menu, 
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207 
enabled by default, with reasonable timeout for pathological cases of 
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208 
higherorder unification. 
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209 

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210 

27381  211 
*** Document preparation *** 
212 

213 
* Antiquotation @{lemma} now imitates a regular terminal proof, 

27392  214 
demanding keyword 'by' and supporting the full method expression 
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215 
syntax just like the Isar command 'by'. 
27381  216 

217 

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218 
*** HOL *** 
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219 

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220 
* Integrated main parts of former image HOLComplex with HOL. Entry 
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221 
points Main and Complex_Main remain as before. 
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222 

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223 
* Logic image HOLPlain provides a minimal HOL with the most important 
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224 
tools available (inductive, datatype, primrec, ...). This facilitates 
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225 
experimentation and tool development. Note that user applications 
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226 
(and library theories) should never refer to anything below theory 
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227 
Main, as before. 
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228 

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229 
* Logic image HOLMain stops at theory Main, and thus facilitates 
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230 
experimentation due to shorter build times. 
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231 

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232 
* Logic image HOLNSA contains theories of nonstandard analysis which 
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233 
were previously part of former HOLComplex. Entry point Hyperreal 
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234 
remains valid, but theories formerly using Complex_Main should now use 
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235 
new entry point Hypercomplex. 
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236 

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237 
* Generic ATP manager for Sledgehammer, based on ML threads instead of 
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238 
Posix processes. Avoids potentially expensive forking of the ML 
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239 
process. New threadbased implementation also works on nonUnix 
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240 
platforms (Cygwin). Provers are no longer hardwired, but defined 
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241 
within the theory via plain ML wrapper functions. Basic Sledgehammer 
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242 
commands are covered in the isarref manual. 
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243 

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244 
* Wrapper scripts for remote SystemOnTPTP service allows to use 
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245 
sledgehammer without local ATP installation (Vampire etc.). Other 
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246 
provers may be included via suitable ML wrappers, see also 
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247 
src/HOL/ATP_Linkup.thy. 
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248 

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249 
* ATP selection (E/Vampire/Spass) is now via Proof General's settings 
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250 
menu. 
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251 

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252 
* The metis method no longer fails because the theorem is too trivial 
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253 
(contains the empty clause). 
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254 

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255 
* The metis method now fails in the usual manner, rather than raising 
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256 
an exception, if it determines that it cannot prove the theorem. 
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257 

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258 
* Method "coherent" implements a prover for coherent logic (see also 
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259 
src/Tools/coherent.ML). 
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260 

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261 
* Constants "undefined" and "default" replace "arbitrary". Usually 
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262 
"undefined" is the right choice to replace "arbitrary", though 
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263 
logically there is no difference. INCOMPATIBILITY. 
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264 

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265 
* Command "value" now integrates different evaluation mechanisms. The 
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266 
result of the first successful evaluation mechanism is printed. In 
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267 
square brackets a particular named evaluation mechanisms may be 
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268 
specified (currently, [SML], [code] or [nbe]). See further 
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269 
src/HOL/ex/Eval_Examples.thy. 
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270 

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271 
* Normalization by evaluation now allows nonleftlinear equations. 
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272 
Declare with attribute [code nbe]. 
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273 

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274 
* Methods "case_tac" and "induct_tac" now refer to the very same rules 
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275 
as the structured Isar versions "cases" and "induct", cf. the 
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276 
corresponding "cases" and "induct" attributes. Mutual induction rules 
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277 
are now presented as a list of individual projections 
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278 
(e.g. foo_bar.inducts for types foo and bar); the old format with 
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279 
explicit HOL conjunction is no longer supported. INCOMPATIBILITY, in 
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280 
rare situations a different rule is selected  notably nested tuple 
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281 
elimination instead of former prod.exhaust: use explicit (case_tac t 
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282 
rule: prod.exhaust) here. 
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283 

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284 
* Attributes "cases", "induct", "coinduct" support "del" option. 
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285 

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286 
* Removed fact "case_split_thm", which duplicates "case_split". 
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287 

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288 
* The option datatype has been moved to a new theory Option. Renamed 
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289 
option_map to Option.map, and o2s to Option.set, INCOMPATIBILITY. 
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290 

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291 
* New predicate "strict_mono" classifies strict functions on partial 
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292 
orders. With strict functions on linear orders, reasoning about 
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293 
(in)equalities is facilitated by theorems "strict_mono_eq", 
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294 
"strict_mono_less_eq" and "strict_mono_less". 
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295 

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296 
* Some set operations are now proper qualified constants with 
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297 
authentic syntax. INCOMPATIBILITY: 
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298 

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299 
op Int ~> Set.Int 
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300 
op Un ~> Set.Un 
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301 
INTER ~> Set.INTER 
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302 
UNION ~> Set.UNION 
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303 
Inter ~> Set.Inter 
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304 
Union ~> Set.Union 
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305 
{} ~> Set.empty 
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306 
UNIV ~> Set.UNIV 
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307 

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308 
* Class complete_lattice with operations Inf, Sup, INFI, SUPR now in 
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309 
theory Set. 
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310 

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311 
* Auxiliary class "itself" has disappeared  classes without any 
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312 
parameter are treated as expected by the 'class' command. 
29797  313 

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314 
* Leibnitz's Series for Pi and the arcus tangens and logarithm series. 
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315 

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316 
* Common decision procedures (Cooper, MIR, Ferrack, Approximation, 
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317 
Dense_Linear_Order) are now in directory HOL/Decision_Procs. 
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318 

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319 
* Theory src/HOL/Decision_Procs/Approximation provides the new proof 
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320 
method "approximation". It proves formulas on real values by using 
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321 
interval arithmetic. In the formulas are also the transcendental 
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322 
functions sin, cos, tan, atan, ln, exp and the constant pi are 
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323 
allowed. For examples see 
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324 
src/HOL/Descision_Procs/ex/Approximation_Ex.thy. 
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325 

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326 
* Theory "Reflection" now resides in HOL/Library. 
29650  327 

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328 
* Entry point to Word library now simply named "Word". 
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329 
INCOMPATIBILITY. 
29628  330 

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331 
* Made source layout more coherent with logical distribution 
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332 
structure: 
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333 

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334 
src/HOL/Library/RType.thy ~> src/HOL/Typerep.thy 
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335 
src/HOL/Library/Code_Message.thy ~> src/HOL/ 
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336 
src/HOL/Library/GCD.thy ~> src/HOL/ 
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337 
src/HOL/Library/Order_Relation.thy ~> src/HOL/ 
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338 
src/HOL/Library/Parity.thy ~> src/HOL/ 
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339 
src/HOL/Library/Univ_Poly.thy ~> src/HOL/ 
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340 
src/HOL/Real/ContNotDenum.thy ~> src/HOL/Library/ 
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341 
src/HOL/Real/Lubs.thy ~> src/HOL/ 
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342 
src/HOL/Real/PReal.thy ~> src/HOL/ 
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343 
src/HOL/Real/Rational.thy ~> src/HOL/ 
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344 
src/HOL/Real/RComplete.thy ~> src/HOL/ 
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345 
src/HOL/Real/RealDef.thy ~> src/HOL/ 
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346 
src/HOL/Real/RealPow.thy ~> src/HOL/ 
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347 
src/HOL/Real/Real.thy ~> src/HOL/ 
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348 
src/HOL/Complex/Complex_Main.thy ~> src/HOL/ 
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349 
src/HOL/Complex/Complex.thy ~> src/HOL/ 
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350 
src/HOL/Complex/FrechetDeriv.thy ~> src/HOL/Library/ 
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351 
src/HOL/Complex/Fundamental_Theorem_Algebra.thy ~> src/HOL/Library/ 
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352 
src/HOL/Hyperreal/Deriv.thy ~> src/HOL/ 
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353 
src/HOL/Hyperreal/Fact.thy ~> src/HOL/ 
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354 
src/HOL/Hyperreal/Integration.thy ~> src/HOL/ 
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355 
src/HOL/Hyperreal/Lim.thy ~> src/HOL/ 
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356 
src/HOL/Hyperreal/Ln.thy ~> src/HOL/ 
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357 
src/HOL/Hyperreal/Log.thy ~> src/HOL/ 
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358 
src/HOL/Hyperreal/MacLaurin.thy ~> src/HOL/ 
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359 
src/HOL/Hyperreal/NthRoot.thy ~> src/HOL/ 
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360 
src/HOL/Hyperreal/Series.thy ~> src/HOL/ 
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361 
src/HOL/Hyperreal/SEQ.thy ~> src/HOL/ 
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362 
src/HOL/Hyperreal/Taylor.thy ~> src/HOL/ 
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363 
src/HOL/Hyperreal/Transcendental.thy ~> src/HOL/ 
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364 
src/HOL/Real/Float ~> src/HOL/Library/ 
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365 
src/HOL/Real/HahnBanach ~> src/HOL/HahnBanach 
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366 
src/HOL/Real/RealVector.thy ~> src/HOL/ 
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367 

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368 
src/HOL/arith_data.ML ~> src/HOL/Tools 
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369 
src/HOL/hologic.ML ~> src/HOL/Tools 
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370 
src/HOL/simpdata.ML ~> src/HOL/Tools 
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371 
src/HOL/int_arith1.ML ~> src/HOL/Tools/int_arith.ML 
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372 
src/HOL/int_factor_simprocs.ML ~> src/HOL/Tools 
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373 
src/HOL/nat_simprocs.ML ~> src/HOL/Tools 
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374 
src/HOL/Real/float_arith.ML ~> src/HOL/Tools 
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375 
src/HOL/Real/float_syntax.ML ~> src/HOL/Tools 
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376 
src/HOL/Real/rat_arith.ML ~> src/HOL/Tools 
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377 
src/HOL/Real/real_arith.ML ~> src/HOL/Tools 
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378 

29398  379 
src/HOL/Library/Array.thy ~> src/HOL/Imperative_HOL 
380 
src/HOL/Library/Heap_Monad.thy ~> src/HOL/Imperative_HOL 

381 
src/HOL/Library/Heap.thy ~> src/HOL/Imperative_HOL 

382 
src/HOL/Library/Imperative_HOL.thy ~> src/HOL/Imperative_HOL 

383 
src/HOL/Library/Ref.thy ~> src/HOL/Imperative_HOL 

384 
src/HOL/Library/Relational.thy ~> src/HOL/Imperative_HOL 

385 

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386 
* If methods "eval" and "evaluation" encounter a structured proof 
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387 
state with !!/==>, only the conclusion is evaluated to True (if 
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388 
possible), avoiding strange error messages. 
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389 

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390 
* Method "sizechange" automates termination proofs using (a 
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391 
modification of) the sizechange principle. Requires SAT solver. See 
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392 
src/HOL/ex/Termination.thy for examples. 
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393 

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394 
* Simplifier: simproc for let expressions now unfolds if bound 
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395 
variable occurs at most once in let expression body. INCOMPATIBILITY. 
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396 

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397 
* Method "arith": Linear arithmetic now ignores all inequalities when 
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diff
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398 
fast_arith_neq_limit is exceeded, instead of giving up entirely. 
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diff
changeset

399 

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diff
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400 
* New attribute "arith" for facts that should always be used 
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401 
automatically by arithmetic. It is intended to be used locally in 
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402 
proofs, e.g. 
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403 

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404 
assumes [arith]: "x > 0" 
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405 

30706  406 
Global usage is discouraged because of possible performance impact. 
407 

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408 
* New classes "top" and "bot" with corresponding operations "top" and 
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409 
"bot" in theory Orderings; instantiation of class "complete_lattice" 
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410 
requires instantiation of classes "top" and "bot". INCOMPATIBILITY. 
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diff
changeset

411 

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412 
* Changed definition lemma "less_fun_def" in order to provide an 
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413 
instance for preorders on functions; use lemma "less_le" instead. 
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414 
INCOMPATIBILITY. 
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diff
changeset

415 

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416 
* Theory Orderings: class "wellorder" moved here, with explicit 
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417 
induction rule "less_induct" as assumption. For instantiation of 
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418 
"wellorder" by means of predicate "wf", use rule wf_wellorderI. 
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419 
INCOMPATIBILITY. 
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diff
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420 

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421 
* Theory Orderings: added class "preorder" as superclass of "order". 
27793  422 
INCOMPATIBILITY: Instantiation proofs for order, linorder 
423 
etc. slightly changed. Some theorems named order_class.* now named 

424 
preorder_class.*. 

425 

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426 
* Theory Relation: renamed "refl" to "refl_on", "reflexive" to "refl, 
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427 
"diag" to "Id_on". 
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428 

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429 
* Theory Finite_Set: added a new fold combinator of type 
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430 

28855  431 
('a => 'b => 'b) => 'b => 'a set => 'b 
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432 

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433 
Occasionally this is more convenient than the old fold combinator 
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434 
which is now defined in terms of the new one and renamed to 
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435 
fold_image. 
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436 

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437 
* Theories Ring_and_Field and OrderedGroup: The lemmas "group_simps" 
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438 
and "ring_simps" have been replaced by "algebra_simps" (which can be 
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439 
extended with further lemmas!). At the moment both still exist but 
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440 
the former will disappear at some point. 
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441 

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442 
* Theory Power: Lemma power_Suc is now declared as a simp rule in 
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443 
class recpower. Typespecific simp rules for various recpower types 
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444 
have been removed. INCOMPATIBILITY, rename old lemmas as follows: 
30273
ecd6f0ca62ea
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huffman
parents:
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diff
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445 

ecd6f0ca62ea
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huffman
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446 
rat_power_0 > power_0 
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huffman
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447 
rat_power_Suc > power_Suc 
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huffman
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diff
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448 
realpow_0 > power_0 
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huffman
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449 
realpow_Suc > power_Suc 
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huffman
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450 
complexpow_0 > power_0 
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huffman
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451 
complexpow_Suc > power_Suc 
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huffman
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changeset

452 
power_poly_0 > power_0 
ecd6f0ca62ea
declare power_Suc [simp]; remove redundant typespecific versions of power_Suc
huffman
parents:
30250
diff
changeset

453 
power_poly_Suc > power_Suc 
ecd6f0ca62ea
declare power_Suc [simp]; remove redundant typespecific versions of power_Suc
huffman
parents:
30250
diff
changeset

454 

30845
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misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

455 
* Theories Ring_and_Field and Divides: Definition of "op dvd" has been 
27793  456 
moved to separate class dvd in Ring_and_Field; a couple of lemmas on 
457 
dvd has been generalized to class comm_semiring_1. Likewise a bunch 

458 
of lemmas from Divides has been generalized from nat to class 

459 
semiring_div. INCOMPATIBILITY. This involves the following theorem 

460 
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

461 

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

462 
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

463 
zero_dvd_iff ~> dvd_0_left_iff 
28559  464 
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

465 
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

466 
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

467 
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

468 
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

469 

30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

470 
* Theory IntDiv: removed many lemmas that are instances of classbased 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

471 
generalizations (from Divides and Ring_and_Field). INCOMPATIBILITY, 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

472 
rename old lemmas as follows: 
30044  473 

474 
dvd_diff > nat_dvd_diff 

475 
dvd_zminus_iff > dvd_minus_iff 

30224  476 
mod_add1_eq > mod_add_eq 
477 
mod_mult1_eq > mod_mult_right_eq 

478 
mod_mult1_eq' > mod_mult_left_eq 

479 
mod_mult_distrib_mod > mod_mult_eq 

30044  480 
nat_mod_add_left_eq > mod_add_left_eq 
481 
nat_mod_add_right_eq > mod_add_right_eq 

482 
nat_mod_div_trivial > mod_div_trivial 

483 
nat_mod_mod_trivial > mod_mod_trivial 

484 
zdiv_zadd_self1 > div_add_self1 

485 
zdiv_zadd_self2 > div_add_self2 

30181  486 
zdiv_zmult_self1 > div_mult_self2_is_id 
30044  487 
zdiv_zmult_self2 > div_mult_self1_is_id 
488 
zdvd_triv_left > dvd_triv_left 

489 
zdvd_triv_right > dvd_triv_right 

490 
zdvd_zmult_cancel_disj > dvd_mult_cancel_left 

30085  491 
zmod_eq0_zdvd_iff > dvd_eq_mod_eq_0[symmetric] 
30044  492 
zmod_zadd_left_eq > mod_add_left_eq 
493 
zmod_zadd_right_eq > mod_add_right_eq 

494 
zmod_zadd_self1 > mod_add_self1 

495 
zmod_zadd_self2 > mod_add_self2 

30224  496 
zmod_zadd1_eq > mod_add_eq 
30044  497 
zmod_zdiff1_eq > mod_diff_eq 
498 
zmod_zdvd_zmod > mod_mod_cancel 

499 
zmod_zmod_cancel > mod_mod_cancel 

500 
zmod_zmult_self1 > mod_mult_self2_is_0 

501 
zmod_zmult_self2 > mod_mult_self1_is_0 

502 
zmod_1 > mod_by_1 

503 
zdiv_1 > div_by_1 

504 
zdvd_abs1 > abs_dvd_iff 

505 
zdvd_abs2 > dvd_abs_iff 

506 
zdvd_refl > dvd_refl 

507 
zdvd_trans > dvd_trans 

508 
zdvd_zadd > dvd_add 

509 
zdvd_zdiff > dvd_diff 

510 
zdvd_zminus_iff > dvd_minus_iff 

511 
zdvd_zminus2_iff > minus_dvd_iff 

512 
zdvd_zmultD > dvd_mult_right 

513 
zdvd_zmultD2 > dvd_mult_left 

514 
zdvd_zmult_mono > mult_dvd_mono 

515 
zdvd_0_right > dvd_0_right 

516 
zdvd_0_left > dvd_0_left_iff 

517 
zdvd_1_left > one_dvd 

518 
zminus_dvd_iff > minus_dvd_iff 

519 

30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

520 
* Theory Rational: 'Fract k 0' now equals '0'. INCOMPATIBILITY. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

521 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

522 
* The real numbers offer decimal input syntax: 12.34 is translated 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

523 
into 1234/10^2. This translation is not reversed upon output. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

524 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

525 
* Theory Library/Polynomial defines an abstract type 'a poly of 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

526 
univariate polynomials with coefficients of type 'a. In addition to 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

527 
the standard ring operations, it also supports div and mod. Code 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

528 
generation is also supported, using liststyle constructors. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

529 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

530 
* Theory Library/Inner_Product defines a class of real_inner for real 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

531 
inner product spaces, with an overloaded operation inner :: 'a => 'a 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

532 
=> real. Class real_inner is a subclass of real_normed_vector from 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

533 
theory RealVector. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

534 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

535 
* Theory Library/Product_Vector provides instances for the product 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

536 
type 'a * 'b of several classes from RealVector and Inner_Product. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

537 
Definitions of addition, subtraction, scalar multiplication, norms, 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

538 
and inner products are included. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

539 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

540 
* Theory Library/Bit defines the field "bit" of integers modulo 2. In 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

541 
addition to the field operations, numerals and case syntax are also 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

542 
supported. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

543 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

544 
* Theory Library/Diagonalize provides constructive version of Cantor's 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

545 
first diagonalization argument. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

546 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

547 
* Theory Library/GCD: Curried operations gcd, lcm (for nat) and zgcd, 
27599  548 
zlcm (for int); carried together from various gcd/lcm developements in 
30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

549 
the HOL Distribution. Constants zgcd and zlcm replace former igcd and 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

550 
ilcm; corresponding theorems renamed accordingly. INCOMPATIBILITY, 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

551 
may recover tupled syntax as follows: 
27556  552 

553 
hide (open) const gcd 

554 
abbreviation gcd where 

555 
"gcd == (%(a, b). GCD.gcd a b)" 

556 
notation (output) 

557 
GCD.gcd ("gcd '(_, _')") 

558 

30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

559 
The same works for lcm, zgcd, zlcm. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

560 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

561 
* Theory Library/Nat_Infinity: added addition, numeral syntax and more 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

562 
instantiations for algebraic structures. Removed some duplicate 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

563 
theorems. Changes in simp rules. INCOMPATIBILITY. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

564 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

565 
* ML antiquotation @{code} takes a constant as argument and generates 
27651
16a26996c30e
moved op dvd to theory Ring_and_Field; generalized a couple of lemmas
haftmann
parents:
27599
diff
changeset

566 
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

567 
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

568 
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

569 
simultaneously. Provides a generic and safe interface for 
30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

570 
instrumentalizing code generation. See 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

571 
src/HOL/Decision_Procs/Ferrack.thy for a more ambitious application. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

572 
In future you ought to refrain from adhoc compiling generated SML 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

573 
code on the ML toplevel. Note that (for technical reasons) @{code} 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

574 
cannot refer to constants for which userdefined serializations are 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

575 
set. Refer to the corresponding ML counterpart directly in that 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

576 
cases. 
27122  577 

578 
* Command 'rep_datatype': instead of theorem names the command now 

579 
takes a list of terms denoting the constructors of the type to be 

580 
represented as datatype. The characteristic theorems have to be 

581 
proven. INCOMPATIBILITY. Also observe that the following theorems 

582 
have disappeared in favour of existing ones: 

583 

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

584 
unit_induct ~> unit.induct 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

585 
prod_induct ~> prod.induct 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

586 
sum_induct ~> sum.induct 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

587 
Suc_Suc_eq ~> nat.inject 
791607529f6d
rep_datatype command now takes list of constructors as input arguments
haftmann
parents:
27067
diff
changeset

588 
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

589 

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

590 

27696  591 
*** HOLAlgebra *** 
592 

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

593 
* New locales for orders and lattices where the equivalence relation 
30106  594 
is not restricted to equality. INCOMPATIBILITY: all order and lattice 
595 
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

596 

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

597 
* 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

598 

30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

599 
* Units_l_inv and Units_r_inv are now simp rules by default. 
27696  600 
INCOMPATIBILITY. Simplifier proof that require deletion of l_inv 
601 
and/or r_inv will now also require deletion of these lemmas. 

602 

30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

603 
* Renamed the following theorems, INCOMPATIBILITY: 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

604 

27696  605 
UpperD ~> Upper_memD 
606 
LowerD ~> Lower_memD 

607 
least_carrier ~> least_closed 

608 
greatest_carrier ~> greatest_closed 

609 
greatest_Lower_above ~> greatest_Lower_below 

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

610 
one_zero ~> carrier_one_zero 
21bbd410ba04
Generalised polynomial lemmas from cring to ring.
ballarin
parents:
27713
diff
changeset

611 
one_not_zero ~> carrier_one_not_zero (collision with assumption) 
27696  612 

27793  613 

30849  614 
*** HOLNominal *** 
615 

30855  616 
* Nominal datatypes can now contain typevariables. 
617 

618 
* Commands 'nominal_inductive' and 'equivariance' work with local 

619 
theory targets. 

620 

621 
* Nominal primrec can now works with local theory targets and its 

622 
specification syntax now conforms to the general format as seen in 

623 
'inductive' etc. 

624 

625 
* Method "perm_simp" honours the standard simplifier attributes 

626 
(no_asm), (no_asm_use) etc. 

627 

628 
* The new predicate #* is defined like freshness, except that on the 

629 
left hand side can be a set or list of atoms. 

630 

631 
* Experimental command 'nominal_inductive2' derives strong induction 

632 
principles for inductive definitions. In contrast to 

633 
'nominal_inductive', which can only deal with a fixed number of 

634 
binders, it can deal with arbitrary expressions standing for sets of 

635 
atoms to be avoided. The only inductive definition we have at the 

636 
moment that needs this generalisation is the typing rule for Lets in 

637 
the algorithm W: 

638 

639 
Gamma  t1 : T1 (x,close Gamma T1)::Gamma  t2 : T2 x#Gamma 

640 
 

641 
Gamma  Let x be t1 in t2 : T2 

642 

643 
In this rule one wants to avoid all the binders that are introduced by 

644 
"close Gamma T1". We are looking for other examples where this 

645 
feature might be useful. Please let us know. 

30849  646 

647 

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

648 
*** HOLCF *** 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

649 

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

650 
* Reimplemented the simplification procedure for proving continuity 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

651 
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

652 
continuity introduction rules with the attribute [cont2cont]. 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

653 

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

654 
* 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

655 
solving continuity subgoals on terms with lambda abstractions. In 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

656 
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

657 
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

658 
Potential INCOMPATIBILITY. 
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

659 

30847  660 
* Command 'fixrec': specification syntax now conforms to the general 
30855  661 
format as seen in 'inductive' etc. See src/HOLCF/ex/Fixrec_ex.thy for 
662 
examples. INCOMPATIBILITY. 

30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

663 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

664 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

665 
*** ZF *** 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

666 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

667 
* Proof of Zorn's Lemma for partial orders. 
30176
78610979b3c6
add news for HOLCF; fixed some typos and inaccuracies
huffman
parents:
30163
diff
changeset

668 

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

669 

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

670 
*** ML *** 
28088
723735f2d73a
* Name bindings in higher specification mechanisms;
wenzelm
parents:
28085
diff
changeset

671 

30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

672 
* Multithreading for Poly/ML 5.1/5.2 is no longer supported, only for 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

673 
Poly/ML 5.2.1 or later. Important note: the TimeLimit facility 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

674 
depends on multithreading, so timouts will not work before Poly/ML 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

675 
5.2.1! 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

676 

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

677 
* Highlevel support for concurrent ML programming, see 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

678 
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

679 
particularly convenient to organize independent functional 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

680 
computations. The concept of "synchronized variables" provides a 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

681 
higherorder interface for components with shared state, avoiding the 
30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

682 
delicate details of mutexes and condition variables. (Requires 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

683 
Poly/ML 5.2.1 or later.) 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

684 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

685 
* ML bindings produced via Isar commands are stored within the Isar 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

686 
context (theory or proof). Consequently, commands like 'use' and 'ML' 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

687 
become threadsafe and work with undo as expected (concerning 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

688 
toplevel bindings, not sideeffects on global references). 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

689 
INCOMPATIBILITY, need to provide proper Isar context when invoking the 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

690 
compiler at runtime; really global bindings need to be given outside a 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

691 
theory. (Requires Poly/ML 5.2 or later.) 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

692 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

693 
* Command 'ML_prf' is analogous to 'ML' but works within a proof 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

694 
context. Toplevel ML bindings are stored within the proof context in 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

695 
a purely sequential fashion, disregarding the nested proof structure. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

696 
ML bindings introduced by 'ML_prf' are discarded at the end of the 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

697 
proof. (Requires Poly/ML 5.2 or later.) 
29161
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

698 

30530  699 
* Simplified ML attribute and method setup, cf. functions Attrib.setup 
30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

700 
and Method.setup, as well as Isar commands 'attribute_setup' and 
30547  701 
'method_setup'. INCOMPATIBILITY for 'method_setup', need to simplify 
702 
existing code accordingly, or use plain 'setup' together with old 

703 
Method.add_method. 

30530  704 

28294  705 
* Simplified ML oracle interface Thm.add_oracle promotes 'a > cterm 
706 
to 'a > thm, while results are always tagged with an authentic oracle 

707 
name. The Isar command 'oracle' is now polymorphic, no argument type 

708 
is specified. INCOMPATIBILITY, need to simplify existing oracle code 

709 
accordingly. Note that extra performance may be gained by producing 

710 
the cterm carefully, avoiding slow Thm.cterm_of. 

711 

30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

712 
* Simplified interface for defining document antiquotations via 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

713 
ThyOutput.antiquotation, ThyOutput.output, and optionally 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

714 
ThyOutput.maybe_pretty_source. INCOMPATIBILITY, need to simplify user 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

715 
antiquotations accordingly, see src/Pure/Thy/thy_output.ML for common 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

716 
examples. 
28099
fb16a07d6580
* Generic Toplevel.add_hook interface allows to analyze the result of
wenzelm
parents:
28089
diff
changeset

717 

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

718 
* 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

719 
name space operations. Basic operations on qualified names have been 
30399  720 
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

721 
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

722 
abstract type binding (see structure Binding), which supports precise 
30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

723 
qualification by packages and local theory targets, as well as proper 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

724 
tracking of source positions. INCOMPATIBILITY, need to wrap old 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

725 
bstring values into Binding.name, or better pass through abstract 
30399  726 
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

727 
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

728 

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

729 
* Result facts (from PureThy.note_thms, ProofContext.note_thms, 
66ae1926482a
* Result facts now refer to the *full* internal name;
wenzelm
parents:
28088
diff
changeset

730 
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

731 
bstring as before. INCOMPATIBILITY, not detected by ML typechecking! 
66ae1926482a
* Result facts now refer to the *full* internal name;
wenzelm
parents:
28088
diff
changeset

732 

27287  733 
* Disposed old type and term read functions (Sign.read_def_typ, 
734 
Sign.read_typ, Sign.read_def_terms, Sign.read_term, 

735 
Thm.read_def_cterms, Thm.read_cterm etc.). INCOMPATIBILITY, should 

736 
use regular Syntax.read_typ, Syntax.read_term, Syntax.read_typ_global, 

27269  737 
Syntax.read_term_global etc.; see also OldGoals.read_term as last 
738 
resort for legacy applications. 

739 

30609
983e8b6e4e69
Disposed old declarations, tactics, tactic combinators that refer to the simpset or claset of an implicit theory;
wenzelm
parents:
30577
diff
changeset

740 
* Disposed old declarations, tactics, tactic combinators that refer to 
983e8b6e4e69
Disposed old declarations, tactics, tactic combinators that refer to the simpset or claset of an implicit theory;
wenzelm
parents:
30577
diff
changeset

741 
the simpset or claset of an implicit theory (such as Addsimps, 
983e8b6e4e69
Disposed old declarations, tactics, tactic combinators that refer to the simpset or claset of an implicit theory;
wenzelm
parents:
30577
diff
changeset

742 
Simp_tac, SIMPSET). INCOMPATIBILITY, should use @{simpset} etc. in 
983e8b6e4e69
Disposed old declarations, tactics, tactic combinators that refer to the simpset or claset of an implicit theory;
wenzelm
parents:
30577
diff
changeset

743 
embedded ML text, or local_simpset_of with a proper context passed as 
983e8b6e4e69
Disposed old declarations, tactics, tactic combinators that refer to the simpset or claset of an implicit theory;
wenzelm
parents:
30577
diff
changeset

744 
explicit runtime argument. 
983e8b6e4e69
Disposed old declarations, tactics, tactic combinators that refer to the simpset or claset of an implicit theory;
wenzelm
parents:
30577
diff
changeset

745 

30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

746 
* Rules and tactics that read instantiations (read_instantiate, 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

747 
res_inst_tac, thin_tac, subgoal_tac etc.) now demand a proper proof 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

748 
context, which is required for parsing and typechecking. Moreover, 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

749 
the variables are specified as plain indexnames, not string encodings 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

750 
thereof. INCOMPATIBILITY. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

751 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

752 
* Generic Toplevel.add_hook interface allows to analyze the result of 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

753 
transactions. E.g. see src/Pure/ProofGeneral/proof_general_pgip.ML 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

754 
for theorem dependency output of transactions resulting in a new 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

755 
theory state. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

756 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

757 
* ML antiquotations: blockstructured compilation context indicated by 
27391  758 
\<lbrace> ... \<rbrace>; additional antiquotation forms: 
759 

30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

760 
@{binding name}  basic name binding 
27519
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

761 
@{let ?pat = term}  term abbreviation (HO matching) 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

762 
@{note name = fact}  fact abbreviation 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

763 
@{thm fact}  singleton fact (with attributes) 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

764 
@{thms fact}  general fact (with attributes) 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

765 
@{lemma prop by method}  singleton goal 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

766 
@{lemma prop by meth1 meth2}  singleton goal 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

767 
@{lemma prop1 ... propN by method}  general goal 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

768 
@{lemma prop1 ... propN by meth1 meth2}  general goal 
59b54d80d2ae
slightly improved @{lemma} (both for latex and ML);
wenzelm
parents:
27485
diff
changeset

769 
@{lemma (open) ...}  open derivation 
27380  770 

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

771 

27979  772 
*** System *** 
773 

28248  774 
* The Isabelle "emacs" tool provides a specific interface to invoke 
775 
Proof General / Emacs, with more explicit failure if that is not 

776 
installed (the old isabelleinterface script silently falls back on 

777 
isabelleprocess). The PROOFGENERAL_HOME setting determines the 

778 
installation location of the Proof General distribution. 

779 

27979  780 
* Isabelle/lib/classes/Pure.jar provides basic support to integrate 
781 
the Isabelle process into a JVM/Scala application. See 

782 
Isabelle/lib/jedit/plugin for a minimal example. (The obsolete Java 

783 
process wrapper has been discontinued.) 

784 

30845
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

785 
* Added homegrown Isabelle font with unicode layout, see lib/fonts. 
9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

786 

9a887484de53
misc cleanup and rearrangements for Isabelle2009 release;
wenzelm
parents:
30741
diff
changeset

787 
* Various status messages (with exact source position information) are 
27979  788 
emitted, if proper markup print mode is enabled. This allows 
789 
userinterface components to provide detailed feedback on internal 

790 
prover operations. 

791 

792 

27143  793 

27008  794 
New in Isabelle2008 (June 2008) 
795 
 

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

796 

25522  797 
*** General *** 
798 

27061  799 
* The Isabelle/Isar Reference Manual (isarref) has been reorganized 
800 
and updated, with formally checked references as hyperlinks. 

801 

25994  802 
* Theory loader: use_thy (and similar operations) no longer set the 
803 
implicit ML context, which was occasionally hard to predict and in 

804 
conflict with concurrency. INCOMPATIBILITY, use ML within Isar which 

805 
provides a proper context already. 

806 

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

807 
* Theory loader: oldstyle ML proof scripts being *attached* to a thy 
73efc70edeef
theory loader: discontinued *attached* ML scripts;
wenzelm
parents:
26315
diff
changeset

808 
file are no longer supported. INCOMPATIBILITY, regular 'uses' and 
73efc70edeef
theory loader: discontinued *attached* ML scripts;
wenzelm
parents:
26315
diff
changeset

809 
'use' within a theory file will do the job. 
73efc70edeef
theory loader: discontinued *attached* ML scripts;
wenzelm
parents:
26315
diff
changeset

810 

26650  811 
* Name space merge now observes canonical order, i.e. the second space 
812 
is inserted into the first one, while existing entries in the first 

26659  813 
space take precedence. INCOMPATIBILITY in rare situations, may try to 
26650  814 
swap theory imports. 
815 

27067  816 
* Syntax: symbol \<chi> is now considered a letter. Potential 
817 
INCOMPATIBILITY in identifier syntax etc. 

818 

819 
* Outer syntax: string tokens no longer admit escaped white space, 

820 
which was an accidental (undocumented) feature. INCOMPATIBILITY, use 

821 
white space without escapes. 

822 

823 
* Outer syntax: string tokens may contain arbitrary character codes 

824 
specified via 3 decimal digits (as in SML). E.g. "foo\095bar" for 

825 
"foo_bar". 

826 

25522  827 

25502  828 
*** Pure *** 
829 

26718  830 
* Contextdependent token translations. Default setup reverts locally 
831 
fixed variables, and adds hilite markup for undeclared frees. 

832 

26681  833 
* Unused theorems can be found using the new command 'unused_thms'. 
834 
There are three ways of invoking it: 

835 

836 
(1) unused_thms 

837 
Only finds unused theorems in the current theory. 

838 

839 
(2) unused_thms thy_1 ... thy_n  

840 
Finds unused theorems in the current theory and all of its ancestors, 

841 
excluding the theories thy_1 ... thy_n and all of their ancestors. 

842 

843 
(3) unused_thms thy_1 ... thy_n  thy'_1 ... thy'_m 

844 
Finds unused theorems in the theories thy'_1 ... thy'_m and all of 

845 
their ancestors, excluding the theories thy_1 ... thy_n and all of 

846 
their ancestors. 

847 

26718  848 
In order to increase the readability of the list produced by 
849 
unused_thms, theorems that have been created by a particular instance 

26874  850 
of a theory command such as 'inductive' or 'function' are considered 
851 
to belong to the same "group", meaning that if at least one theorem in 

26718  852 
this group is used, the other theorems in the same group are no longer 
853 
reported as unused. Moreover, if all theorems in the group are 

854 
unused, only one theorem in the group is displayed. 

855 

856 
Note that proof objects have to be switched on in order for 

857 
unused_thms to work properly (i.e. !proofs must be >= 1, which is 

26874  858 
usually the case when using Proof General with the default settings). 
26681  859 

26650  860 
* Authentic naming of facts disallows adhoc overwriting of previous 
861 
theorems within the same name space. INCOMPATIBILITY, need to remove 

862 
duplicate fact bindings, or even accidental fact duplications. Note 

863 
that tools may maintain dynamically scoped facts systematically, using 

864 
PureThy.add_thms_dynamic. 

865 

26660  866 
* Command 'hide' now allows to hide from "fact" name space as well. 
867 

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

868 
* Eliminated destructive theorem database, simpset, claset, and 
49ae9456eba9
purely functional setup of claset/simpset/clasimpset;
wenzelm
parents:
26495
diff
changeset

869 
clasimpset. Potential INCOMPATIBILITY, really need to observe linear 
49ae9456eba9
purely functional setup of claset/simpset/clasimpset;
wenzelm
parents:
26495
diff
changeset

870 
update of theories within ML code. 
26479  871 

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

872 
* 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

873 
INCOMPATIBILITY, objectlogics depending on former Pure require 
ebbaa935eae0
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents:
26925
diff
changeset

874 
additional setup PureThy.old_appl_syntax_setup; objectlogics 
ebbaa935eae0
* Eliminated theory ProtoPure and CPure, leaving just one Pure theory.
wenzelm
parents:
26925
diff
changeset

875 
depending on former CPure need to refer to Pure. 
26650  876 

26495  877 
* Commands 'use' and 'ML' are now purely functional, operating on 
26479  878 
theory/local_theory. Removed former 'ML_setup' (on theory), use 'ML' 
879 
instead. Added 'ML_val' as mere diagnostic replacement for 'ML'. 

880 
INCOMPATIBILITY. 

881 

26874  882 
* Command 'setup': discontinued implicit version with ML reference. 
26434  883 

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

884 
* Instantiation target allows for simultaneous specification of class 
9053fd546501
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents:
25961
diff
changeset

885 
instance operations together with an instantiation proof. 
9053fd546501
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs here;
wenzelm
parents:
25961
diff
changeset

886 
Typechecking phase allows to refer to class operations uniformly. 
27067  887 
See src/HOL/Complex/Complex.thy for an Isar example and 
888 
src/HOL/Library/Eval.thy for an ML example. 

25502  889 

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

890 
* Indexing of literal facts: be more serious about including only 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

891 
facts from the visible specification/proof context, but not the 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

892 
background context (locale etc.). Affects `prop` notation and method 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

893 
"fact". INCOMPATIBILITY: need to name facts explicitly in rare 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

894 
situations. 
d3363a854708
indexing literal facts: exclude background context;
wenzelm
parents:
26197
diff
changeset

895 

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

896 
* Method "cases", "induct", "coinduct": removed obsolete/undocumented 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

897 
"(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

898 
proof text. 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

899 

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

900 
* Isar statements: removed obsolete case "rule_context". 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

901 
INCOMPATIBILITY, better use explicit fixes/assumes. 
ce964f0df281
* Method "cases", "induct", "coinduct": removed obsolete "(open)" option;
wenzelm
parents:
26920
diff
changeset

902 

26874  903 
* Locale proofs: default proof step now includes 'unfold_locales'; 
904 
hence 'proof' without argument may be used to unfold locale 

905 
predicates. 

26765  906 

907 

26762  908 
*** Document preparation *** 
909 

26914  910 
* Simplified pdfsetup.sty: color/hyperref is used unconditionally for 
911 
both pdf and dvi (hyperlinks usually work in xdvi as well); removed 

912 
obsolete thumbpdf setup (contemporary PDF viewers do this on the 

913 
spot); renamed link color from "darkblue" to "linkcolor" (default 

26920  914 
value unchanged, can be redefined via \definecolor); no longer sets 
915 
"a4paper" option (unnecessary or even intrusive). 

26914  916 

27008  917 
* Antiquotation @{lemma A method} proves proposition A by the given 
918 
method (either a method name or a method name plus (optional) method 

919 
arguments in parentheses) and prints A just like @{prop A}. 

26762  920 

921 

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

922 
*** HOL *** 
0ca80ce89001
moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents:
25459
diff
changeset

923 

27067  924 
* New primrec package. Specification syntax conforms in style to 
925 
definition/function/.... No separate induction rule is provided. The 

926 
"primrec" command distinguishes oldstyle and newstyle specifications 

927 
by syntax. The former primrec package is now named OldPrimrecPackage. 

928 
When adjusting theories, beware: constants stemming from newstyle 

929 
primrec specifications have authentic syntax. 

930 

931 
* Metis prover is now an order of magnitude faster, and also works 

932 
with multithreading. 

933 

934 
* Metis: the maximum number of clauses that can be produced from a 

935 
theorem is now given by the attribute max_clauses. Theorems that 

936 
exceed this number are ignored, with a warning printed. 

937 

938 
* Sledgehammer no longer produces structured proofs by default. To 

939 
enable, declare [[sledgehammer_full = true]]. Attributes 

940 
reconstruction_modulus, reconstruction_sorts renamed 

941 
sledgehammer_modulus, sledgehammer_sorts. INCOMPATIBILITY. 

942 

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

943 
* Method "induct_scheme" derives userspecified induction rules 
27067  944 
from wellfounded induction and completeness of patterns. This factors 
945 
out some operations that are done internally by the function package 

946 
and makes them available separately. See 

947 
src/HOL/ex/Induction_Scheme.thy for examples. 

948 

949 
* More flexible generation of measure functions for termination 

950 
proofs: Measure functions can be declared by proving a rule of the 

951 
form "is_measure f" and giving it the [measure_function] attribute. 

952 
The "is_measure" predicate is logically meaningless (always true), and 

953 
just guides the heuristic. To find suitable measure functions, the 

954 
termination prover sets up the goal "is_measure ?f" of the appropriate 

955 
type and generates all solutions by prologstyle backwards proof using 

956 
the declared rules. 

957 

958 
This setup also deals with rules like 

959 

960 
"is_measure f ==> is_measure (list_size f)" 

961 

962 
which accommodates nested datatypes that recurse through lists. 

963 
Similar rules are predeclared for products and option types. 

964 

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

965 
* 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

966 

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

967 
INCOMPATIBILITIES: 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

968 

27008  969 
 Definitions of overloaded constants on sets have to be replaced by 
970 
definitions on => and bool. 

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

971 

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

972 
 Some definitions of overloaded operators on sets can now be proved 
27008  973 
using the definitions of the operators on => and bool. Therefore, 
974 
the following theorems have been renamed: 

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

975 

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

976 
subset_def > subset_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

977 
psubset_def > psubset_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

978 
set_diff_def > set_diff_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

979 
Compl_def > Compl_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

980 
Sup_set_def > Sup_set_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

981 
Inf_set_def > Inf_set_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

982 
sup_set_def > sup_set_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

983 
inf_set_def > inf_set_eq 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

984 

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

985 
 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

986 
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

987 
the unknowns in the rule is a set. 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

988 

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

989 
 Higher order unification and forward proofs: 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

990 
The proof pattern 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

991 

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

992 
have "P (S::'a set)" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

993 
then have "EX S. P S" .. 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

994 

27008  995 
no longer works (due to the incompleteness of the HO unification 
996 
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

997 

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

998 
have "EX S. P S" 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

999 
proof 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1000 
show "P S" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1001 
qed 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1002 

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

1003 
 Calculational reasoning with subst (or similar rules): 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1004 
The proof pattern 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1005 

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

1006 
have "P (S::'a set)" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1007 
also have "S = T" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1008 
finally have "P T" . 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1009 

27008  1010 
no longer works (for similar reasons as the previous example) and 
1011 
must be replaced by something like 

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

1012 

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

1013 
have "P (S::'a set)" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1014 
moreover have "S = T" <...> 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1015 
ultimately have "P T" by simp 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1016 

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

1017 
 Tactics or packages written in ML code: 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1018 
Code performing pattern matching on types via 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1019 

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

1020 
Type ("set", [T]) => ... 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1021 

27008  1022 
must be rewritten. Moreover, functions like strip_type or 
1023 
binder_types no longer return the right value when applied to a 

1024 
type of the form 

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

1025 

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

1026 
T1 => ... => Tn => U => bool 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1027 

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

1028 
rather than 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1029 

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

1030 
T1 => ... => Tn => U set 
df1f238a05f7
Added entry explaining incompatibilities introduced by replacing sets by predicates.
berghofe
parents:
26955
diff
changeset

1031 

26874  1032 
* Merged theories Wellfounded_Recursion, Accessible_Part and 
27067  1033 
Wellfounded_Relations to theory Wellfounded. 
26748
4d51ddd6aa5c
Merged theories about wellfoundedness into one: Wellfounded.thy
krauss
parents:
26724
diff
changeset

1034 

26513  1035 
* Explicit class "eq" for executable equality. INCOMPATIBILITY. 
1036 

26874  1037 
* Class finite no longer treats UNIV as class parameter. Use class 
1038 
enum from theory Library/Enum instead to achieve a similar effect. 

26445  1039 
INCOMPATIBILITY. 
1040 

26874  1041 
* Theory List: rule list_induct2 now has explicitly named cases "Nil" 
1042 
and "Cons". INCOMPATIBILITY. 

1043 

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

1044 
* 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

1045 
Potential INCOMPATIBILITY. 
d5883907c514
HOL (and FOL): renamed variables in rules imp_elim and swap;
wenzelm
parents:
26401
diff
changeset

1046 

26874  1047 
* Theory Product_Type: duplicated lemmas split_Pair_apply and 
1048 
injective_fst_snd removed, use split_eta and prod_eqI instead. 

1049 
Renamed upd_fst to apfst and upd_snd to apsnd. INCOMPATIBILITY. 

26355  1050 

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

1051 
* 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

1052 
the same name in theory Orderings: 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

1053 

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

1054 
less_trans 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

1055 
less_linear 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

1056 
le_imp_less_or_eq 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

1057 
le_less_trans 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

1058 
less_le_trans 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

1059 
less_not_sym 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

1060 
less_asym 
961bbcc9d85b
removed redundant Nat.less_not_sym, Nat.less_asym;
wenzelm
parents:
26333
diff
changeset

1061 

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

1062 
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

1063 
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

1064 
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

1065 

26231  1066 
* Library/Option_ord.thy: Canonical order on option type. 
1067 

27008  1068 
* Library/RBT.thy: Redblack trees, an efficient implementation of 
1069 
finite maps. 

26197  1070 

26231  1071 
* Library/Countable.thy: Type class for countable types. 
1072 

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

1073 
* 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

1074 
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

1075 
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

1076 
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

1077 
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

1078 
accordingly. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1079 

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

1080 
* 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

1081 
depend on wellfounded relations. INCOMPATIBILITY. Definitions 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1082 
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

1083 
[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

1084 

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

1085 
* 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

1086 
(whose purpose mainly is for various fold_set functionals) have been 
26874  1087 
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

1088 
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

1089 
lower_semilattice (resp. upper_semilattice) and linorder. 
26139  1090 
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

1091 

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

1092 
* 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

1093 
case_names ("base" and "step"). INCOMPATIBILITY. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1094 

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

1095 
* 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

1096 
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

1097 
Inductive.lfp_ordinal_induct_set. 
26013
8764a1f1253b
Theorem Inductive.lfp_ordinal_induct generalized to complete lattices
haftmann
parents:
26006
diff
changeset

1098 

26874  1099 
* Renamed theorems "power.simps" to "power_int.simps". 
27067  1100 
INCOMPATIBILITY. 
25961  1101 

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

1102 
* Class semiring_div provides basic abstract properties of semirings 
25942  1103 
with division and modulo operations. Subsumes former class dvd_mod. 
1104 

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

1105 
* 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

1106 
Int. INCOMPATIBILITY. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1107 

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

1108 
* 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

1109 
numbers rather than integers. INCOMPATIBILITY. 
cc85eaab20f6
Transitive_Closure: induct and cases rules now declare proper case_names;
wenzelm
parents:
26139
diff
changeset

1110 

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

1111 
* 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

1112 
"minus" which now only has operation "minus", binary). 
25919
8b1c0d434824
joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents:
25900
diff
changeset

1113 
INCOMPATIBILITY. 
8b1c0d434824
joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents:
25900
diff
changeset

1114 

25522  1115 
* Constants "card", "internal_split", "option_map" now with authentic 
25919
8b1c0d434824
joined theories IntDef, Numeral, IntArith to theory Int
haftmann
parents:
25900
diff
changeset

1116 
syntax. INCOMPATIBILITY. 
25522  1117 

1118 
* Definitions subset_def, psubset_def, set_diff_def, Compl_def, 

1119 
le_bool_def, less_bool_def, le_fun_def, less_fun_def, inf_bool_def, 

1120 
sup_bool_def, Inf_bool_def, Sup_bool_def, inf_fun_def, sup_fun_def, 

1121 
Inf_fun_def, Sup_fun_def, inf_set_def, sup_set_def, Inf_set_def, 

1122 
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

1123 
equality. INCOMPATIBILITY. 
25464
0ca80ce89001
moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents:
25459
diff
changeset

1124 

25705  1125 
* 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

1126 
%x. c. The simplifier setup is now more robust against eta expansion. 
25705  1127 
INCOMPATIBILITY: in cases explicitly referring to K_record. 
25464
0ca80ce89001
moved new NEWS from Isabelle2007 to this Isabelle version'';
wenzelm
parents:
25459
diff
changeset

1128 

27067  1129 
* Library/Multiset: {#a, b, c#} abbreviates {#a#} + {#b#} + {#c#}. 
1130 

1131 
* Library/ListVector: new theory of arithmetic vector operations. 

1132 

1133 
* Library/Order_Relation: new theory of various orderings as sets of 

1134 
pairs. Defines preorders, partial orders, linear orders and 

1135 
wellorders on sets and on types. 

26877  1136 

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

1137 

26197  1138 
*** ZF *** 
1139 

26874  1140 
* Renamed some theories to allow to loading both ZF and HOL in the 
1141 
same session: 

1142 

1143 
Datatype > Datatype_ZF 

1144 
Inductive > Inductive_ZF 

1145 
Int > Int_ZF 

1146 
IntDiv > IntDiv_ZF 

1147 
Nat > Nat_ZF 

1148 
List > List_ZF 

1149 
Main > Main_ZF 

1150 

1151 
INCOMPATIBILITY: ZF theories that import individual theories below 

1152 
Main might need to be adapted. Regular theory Main is still 

1153 
available, as trivial extension of Main_ZF. 

26197  1154 

1155 

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

1156 
*** ML *** 
84c92fc48e36
``print mode'' is now a threadlocal value derived from a global template;
wenzelm
parents:
25726
diff
changeset

1157 

27067  1158 
* ML within Isar: antiquotation @{const name} or @{const 
1159 
name(typargs)} produces staticallychecked Const term. 

1160 

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

1161 
* 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

1162 
(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

1163 

27067  1164 
* Removed obsolete "use_legacy_bindings" function. 
26188  1165 

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

1166 
* 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

1167 
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

1168 
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

1169 
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

1170 
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

1171 

26874  1172 
* 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

1173 
shell commands, with propagation of interrupts (requires Poly/ML 
9903e84a9c9c
* Proofs of are run in parallel on multicore systems;
wenzelm
parents:
29145
diff
changeset

1174 
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

1175 

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

1176 

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

1177 
*** System *** 
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

1178 

25971  1179 
* Default settings: PROOFGENERAL_OPTIONS no longer impose xemacs  
1180 
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

1181 

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

1182 
* isatool tty runs Isabelle process with plain tty interaction; 
3000965b1fdf
* isatool tty runs Isabelle process with plain tty interaction;
wenzelm
parents:
25609
diff
changeset

1183 
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

1184 
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

1185 

25651  1186 
* isatool browser now works with Cygwin as well, using general 
1187 
"javapath" function defined in Isabelle process environment. 

1188 

27067  1189 
* YXML notation provides a simple and efficient alternative to 
1190 
standard XML transfer syntax. See src/Pure/General/yxml.ML and 

1191 
isatool yxml as described in the Isabelle system manual. 

25651  1192 

25652  1193 
* JVM class isabelle.IsabelleProcess (located in Isabelle/lib/classes) 
25651  1194 
provides general wrapper for managing an Isabelle process in a robust 
1195 
fashion, with ``cooked'' output from stdin/stderr. 

1196 

25855  1197 
* Rudimentary Isabelle plugin for jEdit (see Isabelle/lib/jedit), 
1198 
based on Isabelle/JVM process wrapper (see Isabelle/lib/classes). 

1199 

27067  1200 
* Removed obsolete THIS_IS_ISABELLE_BUILD feature. NB: the documented 
1201 
way of changing the user's settings is via 

1202 
ISABELLE_HOME_USER/etc/settings, which is a fully featured bash 

1203 
script. 

1204 

1205 
* Multithreading.max_threads := 0 refers to the number of actual CPU 

1206 
cores of the underlying machine, which is a good starting point for 

1207 
optimal performance tuning. The corresponding usedir option M allows 

1208 
"max" as an alias for "0". WARNING: does not work on certain versions 

1209 
of Mac OS (with Poly/ML 5.1). 

1210 

1211 
* isabelleprocess: nonML sessions are run with "nice", to reduce the 

1212 
adverse effect of Isabelle flooding interactive frontends (notably 

1213 
ProofGeneral / XEmacs). 

1214 

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

1215 

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

1216 

25429  1217 
New in Isabelle2007 (November 2007) 
1218 
 

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

1219 

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

1220 
*** General *** 
58a306d9f736
* Command 'find_theorems': support * wildcard in name: criterion.
wenzelm
parents:
17725
diff
changeset

1221 

22826  1222 
* More uniform information about legacy features, notably a 
1223 
warning/error of "Legacy feature: ...", depending on the state of the 

23367  1224 
tolerate_legacy_features flag (default true). FUTURE INCOMPATIBILITY: 
1225 
legacy features will disappear eventually. 

22826  1226 

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

1227 
* 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

1228 
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

1229 
fixheaders to convert existing theory files. INCOMPATIBILITY. 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

1230 

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

1231 
* 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

1232 
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

1233 
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

1234 
function use_legacy_bindings. INCOMPATIBILITY. 
93e26302733e
* Theory syntax: discontinued nonIsar format and old Isar headers;
wenzelm
parents:
17890
diff
changeset

1235 

22871  1236 
* Theory syntax: some popular names (e.g. 'class', 'declaration', 
1237 
'fun', 'help', 'if') are now keywords. INCOMPATIBILITY, use double 

1238 
quotes. 

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

1239 

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

1240 
* 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

1241 
header specifications (including optional directories), but not the 
24172
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1242 
accidental file locations of previously successful loads. The strict 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1243 
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

1244 
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

1245 
theories simultaneously, just as 'imports' within a theory header 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1246 
specification, but without merging the results. Potential 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1247 
INCOMPATIBILITY: may need to refine theory headers and commands 
06e42cf7df4e
theory loader: added use_thys, removed obsolete update_thy;
wenzelm
parents:
24110
diff
changeset

1248 
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

1249 

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

1250 
* 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

1251 
identification, instead of the traditional scheme of full physical 
23889  1252 
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

1253 
(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

1254 
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

1255 
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

1256 

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

1257 
* 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

1258 
file (with the same base name as the theory) are considered a legacy 
24800  1259 
feature, which will disappear eventually. Even now, the theory loader 
1260 
no longer maintains dependencies on such files. 

1261 

1262 
* Syntax: the scope for resolving ambiguities via typeinference is 

1263 
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

1264 
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

1265 
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

1266 
typechecking. INCOMPATIBILITY: additional typeconstraints (explicit 
4714e04fb8e9
* Syntax: scope for resolving ambiguities via typeinference is now limited to individual terms;
wenzelm
parents:
24213
diff
changeset

1267 
'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

1268 

25034  1269 
* Syntax: constants introduced by newstyle packages ('definition', 
1270 
'abbreviation' etc.) are passed through the syntax module in 

1271 
``authentic mode''. This means that associated mixfix annotations 

1272 
really stick to such constants, independently of potential name space 

1273 
ambiguities introduced later on. INCOMPATIBILITY: constants in parse 

1274 
trees are represented slightly differently, may need to adapt syntax 

1275 
translations accordingly. Use CONST marker in 'translations' and 

1276 
@{const_syntax} antiquotation in 'parse_translation' etc. 

1277 

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

1278 
* 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

1279 
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

1280 
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

1281 
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

1282 
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

1283 
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

1284 
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

1285 

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

1286 
* Command 'find_theorems': supports "*" wildcard in "name:" 
d0e3f790bd73
updated 'find_theorems'  moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents:
23377
diff
changeset

1287 
criterion; "with_dups" option. Certain ProofGeneral versions might 
d0e3f790bd73
updated 'find_theorems'  moved ProofGeneral specifics to ProofGeneral/CHANGES;
wenzelm
parents:
23377
diff
changeset

1288 
support a specific search form (see ProofGeneral/CHANGES). 
22965  1289 

20370  1290 
* The ``prems limit'' option (cf. ProofContext.prems_limit) is now 1 
1291 
by default, which means that "prems" (and also "fixed variables") are 

1292 
suppressed from proof state output. Note that the ProofGeneral 

1293 
settings mechanism allows to change and save options persistently, but 

1294 
older versions of Isabelle will fail to start up if a negative prems 

1295 
limit is imposed. 

1296 

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

1297 
* 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

1298 
``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

1299 
contain definitions, theorems etc., including any derived mechanism 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1300 
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

1301 
generalizes the existing ``theorem (in ...)'' towards more versatility 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1302 
and scalability. 
73883a528b26
* Local theory targets ``context/locale/class ... begin'' followed by ``end''.
wenzelm
parents:
21265
diff
changeset

1303 

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

1304 
* 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

1305 
discontinued Isabelle/classic mode (ML proof scripts). 
0574f192b78a
* Proof General: proper undo of final 'end'; discontinued Isabelle/classic;
wenzelm
parents:
21896
diff
changeset

1306 

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

1307 

17865  1308 
*** Document preparation *** 
1309 

21717  1310 
* Added antiquotation @{theory name} which prints the given name, 
1311 
after checking that it refers to a valid ancestor theory in the 

1312 
current context. 

21339  1313 

17869  1314 
* Added antiquotations @{ML_type text} and @{ML_struct text} which 
1315 
check the given source text as ML type/structure, printing verbatim. 

17865  1316 

21717  1317 
* Added antiquotation @{abbrev "c args"} which prints the abbreviation 
1318 
"c args == rhs" given in the current context. (Any number of 

21735  1319 
arguments may be given on the LHS.) 
21717  1320 

1321 

17779  1322 
*** Pure *** 
1323 

24800  1324 
* The 'class' package offers a combination of axclass and locale to 
25129  1325 
achieve Haskelllike type classes in Isabelle. Definitions and 
1326 
theorems within a class context produce both relative results (with 

1327 
implicit parameters according to the locale context), and polymorphic 

1328 
constants with qualified polymorphism (according to the class 

1329 
context). Within the body context of a 'class' target, a separate 

1330 
syntax layer ("user space type system") takes care of converting 

1331 
between global polymorphic consts and internal locale representation. 

25177  1332 
See src/HOL/ex/Classpackage.thy for examples (as well as main HOL). 
25184  1333 
"isatool doc classes" provides a tutorial. 
20807  1334 

25199  1335 
* Generic code generator framework allows to generate executable 
24800  1336 
code for ML and Haskell (including Isabelle classes). A short usage 
1337 
sketch: 

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1338 

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1339 
internal compilation: 
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export_code <list of constants (term syntax)> in SML 
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writing SML code to a file: 
25199  1342 
export_code <list of constants (term syntax)> in SML <filename> 
22735  1343 
writing OCaml code to a file: 
25199  1344 
export_code <list of constants (term syntax)> in OCaml <filename> 
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1345 
writing Haskell code to a bunch of files: 
25199  1346 
export_code <list of constants (term syntax)> in Haskell <filename> 
1347 

1348 
evaluating closed propositions to True/False using code generation: 

25184  1349 
method ``eval'' 
1350 

1351 
Reasonable default setup of framework in HOL. 

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1352 

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1353 
Theorem attributs for selecting and transforming function equations theorems: 
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1354 

22845  1355 
[code fun]: select a theorem as function equation for a specific constant 
1356 
[code fun del]: deselect a theorem as function equation for a specific constant 

1357 
[code inline]: select an equation theorem for unfolding (inlining) in place 

1358 
[code inline del]: deselect an equation theorem for unfolding (inlining) in place 

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1359 

22735  1360 
Userdefined serializations (target in {SML, OCaml, Haskell}): 
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1361 

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code_const <andlist of constants (term syntax)> 
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{(target) <andlist of const target syntax>}+ 
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1364 

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code_type <andlist of type constructors> 
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1366 
{(target) <andlist of type target syntax>}+ 
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1367 

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code_instance <andlist of instances> 
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{(target)}+ 
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1370 
where instance ::= <type constructor> :: <class> 
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code_class <and_list of classes> 
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{(target) <andlist of class target syntax>}+ 
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where class target syntax ::= <class name> {where {<classop> == <target syntax>}+}? 
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1375 

25199  1376 
code_instance and code_class only are effective to target Haskell. 
22735  1377 

25177  1378 
For example usage see src/HOL/ex/Codegenerator.thy and 
1379 
src/HOL/ex/Codegenerator_Pretty.thy. A separate tutorial on code 

24800  1380 
generation from Isabelle/HOL theories is available via "isatool doc 
1381 
codegen". 

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1382 

25129  1383 
* Code generator: consts in 'consts_code' Isar commands are now 