helm/www/lambdadelta/implementation.html

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  22     <div class="head1">The Formal System λδ (\lambda\delta)</div>
  23     <div class="spacer">
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  26    <div xmlns:ld="http://lambdadelta.info/" class="spacer">
  27       <br />
  28     </div>
  29     <div xmlns:ld="http://lambdadelta.info/" class="text">
  30       <table cellpadding="4" cellspacing="0">
  31         <tbody>
  32           <tr>
  33             <td class="snns component sky">
  34               <a href="http://lambdadelta.info/index.html">home</a>
  35             </td>
  36             <td class="snns component magenta">
  37               <a href="http://lambdadelta.info/news.html">news</a>
  38             </td>
  39             <td class="snns component orange">
  40               <a href="http://lambdadelta.info/documentation.html">documentation</a>
  41             </td>
  42             <td class="snns component green">
  43               <a href="http://lambdadelta.info/implementation.html">implementation</a>
  44             </td>
  45             <td class="ssnn component green">(<a href="http://lambdadelta.info/implementation.html#specifications">specifications</a> - <a href="http://lambdadelta.info/implementation.html#lddl">library</a> - <a href="http://lambdadelta.info/implementation.html#helena">Helena</a>)</td>
  46           </tr>
  47           <tr>
  48             <td class="snns sky">
  49               <a href="http://lambdadelta.info/index.html#foreword">Foreword</a>
  50             </td>
  51             <td class="snns magenta">
  52               <a href="http://lambdadelta.info/news.html#milestones">Milestones</a>
  53             </td>
  54             <td class="snns orange">
  55               <a href="http://lambdadelta.info/documentation.html#v2">Version 2</a>
  56             </td>
  57             <td class="snns green">
  58               <a href="http://lambdadelta.info/version_2.html">Version 2</a>
  59             </td>
  60             <td class="ssnn green">(<a href="http://lambdadelta.info/ground_2.html">Background</a> - <a href="http://lambdadelta.info/basic_2.html">Core</a> - <a href="http://lambdadelta.info/apps_2.html">Applications</a>)</td>
  61           </tr>
  62           <tr>
  63             <td class="snss sky">
  64               <a href="http://lambdadelta.info/index.html#notice">Notice</a>
  65             </td>
  66             <td class="snss magenta">
  67               <a href="http://lambdadelta.info/news.html#visibility">Visibility</a>
  68             </td>
  69             <td class="snss orange">
  70               <a href="http://lambdadelta.info/documentation.html#v1">Version 1</a>
  71             </td>
  72             <td class="snss green">
  73               <a href="http://lambdadelta.info/version_1.html">Version 1</a>
  74             </td>
  75             <td class="sssn green">
  76               <br />
  77             </td>
  78           </tr>
  79         </tbody>
  80       </table>
  81     </div>
  82
  83    <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="specifications">Computer-checked formal specifications <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b9.png" />
  84     </div>
  85    <div xmlns:ld="http://lambdadelta.info/" class="text">
  86       λδ comes in several versions listed in the following table,
  87       which includes the major milestones:
  88    </div>
  89    <div xmlns:ld="http://lambdadelta.info/" class="text">
  90       <table cellpadding="4" cellspacing="0">
  91         <tbody>
  92           <tr>
  93             <td class="snns component gray">version</td>
  94             <td class="snnn component gray">name</td>
  95             <td class="snnn component gray">developed with</td>
  96             <td class="snnn component gray">started</td>
  97             <td class="snnn component gray">announced</td>
  98             <td class="snnn component gray">released</td>
  99             <td class="ssnn component gray">dismissed</td>
 100           </tr>
 101           <tr>
 102             <td class="snns orange">2</td>
 103             <td class="snnn orange">
 104               <a href="http://lambdadelta.info/version_2.html">basic_2</a>
 105             </td>
 106             <td class="snnn orange">
 107               <a href="http://matita.cs.unibo.it/">Matita 0.99.2</a>
 108             </td>
 109             <td class="snnn orange">April 2011</td>
 110             <td class="snnn orange">July 2014</td>
 111             <td class="snnn orange">Planned in 2014</td>
 112             <td class="ssnn orange">Not planned yet</td>
 113           </tr>
 114           <tr>
 115             <td class="snss red">1</td>
 116             <td class="snsn red">
 117               <a href="http://lambdadelta.info/version_1.html">basic_1</a>
 118             </td>
 119             <td class="snsn red">
 120               <a href="http://coq.inria.fr/">Coq 7.3.1</a>
 121             </td>
 122             <td class="snsn red">May 2004</td>
 123             <td class="snsn red">January 2006</td>
 124             <td class="snsn red">November 2006</td>
 125             <td class="sssn red">May 2008</td>
 126           </tr>
 127         </tbody>
 128       </table>
 129     </div>
 130
 131    <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="tools">Tools <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b5.png" />
 132     </div>
 133
 134    <div xmlns:ld="http://lambdadelta.info/" class="head2sn" id="lddl">
 135       <img class="icon32" alt="[Crux logo]" title="the Crux" src="http://lambdadelta.info/images/crux_32.png" /> λδ Digital Library (LDDL)</div>
 136    <div xmlns:ld="http://lambdadelta.info/" class="text">
 137       The λδ Digital Library is part of <a href="http://helm.cs.unibo.it/">HELM</a>
 138       and contains resources expressed in λδ.
 139    </div>
 140    <ul xmlns:ld="http://lambdadelta.info/">
 141       <li>
 142         <span class="date">Contents:</span>
 143       Landau's "Grundlagen der Analysis"
 144       (from Jutting's specification in  <a href="http://www.win.tue.nl/automath/">Automath</a>).
 145    </li>
 146     </ul>
 147    <ul xmlns:ld="http://lambdadelta.info/">
 148       <li>
 149         <span class="date">Access:</span>
 150       <a href="http://lambdadelta.info/static/lddl/">static pages</a> (updated <span class="date">2012-10</span>),
 151       <a href="http://lambdadelta.info/download/lddl.tar.bz2">data set</a> (updated <span class="date">2012-10</span>),
 152       <a href="http://lambdadelta.info/xml/">HELM server URL</a> (updated <span class="date">2012-10</span>).
 153    </li>
 154     </ul>
 155    <ul xmlns:ld="http://lambdadelta.info/">
 156       <li>
 157         <span class="date">Examples:</span>
 158       <a href="http://lambdadelta.info/static/lddl/brg_si/grundlagen/l/e/st/eq/landau/n/rt/rp/r/c/8283/t234.ld.html">
 159          Grundlagen's definition "t234"</a>
 160       (in "basic_rg" λδ),
 161       <a href="http://lambdadelta.info/static/lddl/crg_si/grundlagen/l/e/st/eq/landau/n/rt/rp/r/c/8283/t234.ld.html">
 162          Grundlagen's definition "t234"</a>
 163       (in "complete_rg" λδ).
 164    </li>
 165     </ul>
 166
 167    <div xmlns:ld="http://lambdadelta.info/" class="head2sn" id="helena">
 168       <img class="icon32" alt="[Helena logo]" title="Helena" src="http://lambdadelta.info/images/helena_32.png" /> Helena</div>
 169    <div xmlns:ld="http://lambdadelta.info/" class="text">
 170       Helena is a λδ processor,
 171       implemented in <a href="http://caml.inria.fr/">Caml</a>
 172       as a part of the <a href="http://helm.cs.unibo.it/">HELM</a> software,
 173       meant for testing the stable features of the calculus as well as the unstable ones.
 174    </div>
 175    <div xmlns:ld="http://lambdadelta.info/" class="text">
 176       The processor source code is available in the directory
 177       <a href="http://helm.cs.unibo.it/websvn/listing.php?repname=helm&amp;path=%2Ftrunk%2Fhelm%2Fsoftware%2Fhelena%2F&amp;rev=0&amp;sc=0">/trunk/helm/software/helena/</a>
 178       of the <a href="http://helm.cs.unibo.it/software/index.html">HELM Svn repository</a>.
 179       The Svn revisions containing the stable versions of Helena are indicated next.
 180    </div>
 181    <ul xmlns:ld="http://lambdadelta.info/">
 182       <li>
 183         <span class="date">Version 0.8.2.</span>
 184       In progress.
 185    </li>
 186     </ul>
 187    <ul xmlns:ld="http://lambdadelta.info/">
 188       <li>
 189         <span class="date">Version 0.8.1 (2010-11).</span>
 190       Exploits a subset of "complete_rg" λδ as the intermediate language.
 191       Features importation from ".hln" files containing λδ textual syntax.
 192       The overall validation speed of the "Grundlagen der Analysis"
 193       increases of 22% with respect to version 0.8.0.
 194       [Svn revision: 11032] (<a href="http://lambdadelta.info/download/helena_0.8.1.tar.gz">archived source code</a>)
 195       <ul>
 196           <li>
 197          A <a href="http://www.jedsoft.org/jed/">Jed mode</a>
 198          for editing ".hln" files (containing λδ textual syntax):
 199          <a href="http://lambdadelta.info/download/helena.sl">helena.sl</a>
 200          (revised <span class="date">2010-11</span>).
 201       </li>
 202           <li>
 203          <span class="date">2009-12.</span>
 204          Helena appears in F. Wiedijk's
 205          <a href="http://www.cs.ru.nl/%7Efreek/digimath/index.html#helena">
 206             index of computer math systems</a>.
 207       </li>
 208         </ul>
 209    </li>
 210     </ul>
 211    <ul xmlns:ld="http://lambdadelta.info/">
 212       <li>
 213         <span class="date">Version 0.8.0 (2009-09).</span>
 214       Supports "basic_rg" λδ with naive implementation of impredicative sort inclusion.
 215       Features importation from <a href="http://www.win.tue.nl/automath/">Automath</a>
 216       and exportation to <a href="http://www.w3.org/XML/">XML</a>.
 217       <a href="http://lambdadelta.info/documentation.html#ldR4">Documentation (R4)</a>.
 218       [Svn revision: 10304] (<a href="http://lambdadelta.info/download/helena_0.8.0.tar.gz">archived source code</a>).
 219       <ul>
 220           <li>
 221          A <a href="http://www.jedsoft.org/jed/">Jed mode</a>
 222          for editing ".aut" files
 223          (containing <a href="http://www.win.tue.nl/automath/">Automath</a> textual syntax):
 224          <a href="http://lambdadelta.info/download/automath.sl">automath.sl</a>
 225          (revised <span class="date">2008-07</span>).
 226       </li>
 227           <li>
 228          <span class="date">2009-09.</span>
 229          Jutting's specification of Landau's "Grundlagen der Analysis"
 230          enters λδ Digital Library.
 231       </li>
 232           <li>
 233          <span class="date">2009-06.</span>
 234          Jutting's specification of Landau's "Grundlagen der Analysis"
 235          is successfully processed, enabling sort inclusion.
 236       </li>
 237         </ul>
 238    </li>
 239     </ul>
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 266     <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Sun, 20 Jul 2014 16:13:31 +0200</div>
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