helm/www/lambdadelta/implementation.html

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   8     <meta name="author" content="Ferruccio Guidi" />
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  10     <title>\lambda\delta home page</title>
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  22     <div class="head1">The Formal System λδ (\lambda\delta)</div>
  23     <div class="spacer">
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  30       <table cellpadding="4" cellspacing="0">
  31         <tbody>
  32           <tr>
  33             <td class="snns capitalize italic sky">
  34               <a href="http://lambdadelta.info/index.html">home</a>
  35             </td>
  36             <td class="snns capitalize italic magenta">
  37               <a href="http://lambdadelta.info/news.html">news</a>
  38             </td>
  39             <td class="snns capitalize italic orange">
  40               <a href="http://lambdadelta.info/documentation.html">documentation</a>
  41             </td>
  42             <td class="snns capitalize italic green">
  43               <a href="http://lambdadelta.info/specification.html">specification</a>
  44             </td>
  45             <td class="snnn capitalize italic green">
  46               <br />
  47             </td>
  48             <td class="ssns capitalize italic green">
  49               <a href="http://lambdadelta.info/implementation.html">implementation</a>
  50             </td>
  51           </tr>
  52           <tr>
  53             <td class="snns capitalize sky">
  54               <a href="http://lambdadelta.info/index.html#foreword">foreword</a>
  55             </td>
  56             <td class="snns capitalize magenta">
  57               <a href="http://lambdadelta.info/news.html#milestones">milestones</a>
  58             </td>
  59             <td class="snns capitalize orange">
  60               <a href="http://lambdadelta.info/documentation.html#v2">version 2</a>
  61             </td>
  62             <td class="snns capitalize green">
  63               <a href="http://lambdadelta.info/specification.html#v2">version 2</a>
  64             </td>
  65             <td class="snnn capitalize 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>
  66             <td class="ssns capitalize green">
  67               <a href="http://lambdadelta.info/implementation.html#lddl">library</a>
  68             </td>
  69           </tr>
  70           <tr>
  71             <td class="snss capitalize sky">
  72               <a href="http://lambdadelta.info/index.html#notice">notice</a>
  73             </td>
  74             <td class="snss capitalize magenta">
  75               <a href="http://lambdadelta.info/news.html#visibility">visibility</a>
  76             </td>
  77             <td class="snss capitalize orange">
  78               <a href="http://lambdadelta.info/documentation.html#v1">version 1</a>
  79             </td>
  80             <td class="snss capitalize green">
  81               <a href="http://lambdadelta.info/specification.html#v1">version 1</a>
  82             </td>
  83             <td class="snsn capitalize green">
  84               <br />
  85             </td>
  86             <td class="ssss capitalize green">
  87               <a href="http://lambdadelta.info/implementation.html#helena">helena</a>
  88             </td>
  89           </tr>
  90         </tbody>
  91       </table>
  92     </div>
  93
  94    <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" />
  95     </div>
  96
  97    <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="lddl">
  98       <img class="icon32" alt="[Crux logo]" title="the Crux" src="http://lambdadelta.info/images/crux_32.png" /> λδ Digital Library (LDDL)</div>
  99    <div xmlns:ld="http://lambdadelta.info/" class="text">
 100       The λδ Digital Library is part of <a href="http://helm.cs.unibo.it/">HELM</a>
 101       and contains resources expressed in λδ.
 102    </div>
 103    <ul xmlns:ld="http://lambdadelta.info/">
 104       <li>
 105         <span class="date">Contents:</span>
 106       Landau's "Grundlagen der Analysis"
 107       (from Jutting's specification in  <a href="http://www.win.tue.nl/automath/">Automath</a>).
 108    </li>
 109     </ul>
 110    <ul xmlns:ld="http://lambdadelta.info/">
 111       <li>
 112         <span class="date">Access:</span>
 113       <a href="http://lambdadelta.info/static/lddl/">static pages</a> (updated <span class="date">2012-10</span>),
 114       <a href="http://lambdadelta.info/download/lddl.tar.bz2">data set</a> (updated <span class="date">2012-10</span>),
 115       <a href="http://lambdadelta.info/xml/">HELM server URL</a> (updated <span class="date">2012-10</span>).
 116    </li>
 117     </ul>
 118    <ul xmlns:ld="http://lambdadelta.info/">
 119       <li>
 120         <span class="date">Examples:</span>
 121       <a href="http://lambdadelta.info/static/lddl/brg_si/grundlagen/l/e/st/eq/landau/n/rt/rp/r/c/8283/t234.ld.html">
 122          Grundlagen's definition "t234"</a>
 123       (in "basic_rg" λδ),
 124       <a href="http://lambdadelta.info/static/lddl/crg_si/grundlagen/l/e/st/eq/landau/n/rt/rp/r/c/8283/t234.ld.html">
 125          Grundlagen's definition "t234"</a>
 126       (in "complete_rg" λδ).
 127    </li>
 128     </ul>
 129
 130    <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="helena">
 131       <img class="icon32" alt="[Helena logo]" title="Helena" src="http://lambdadelta.info/images/helena_32.png" /> Helena</div>
 132    <div xmlns:ld="http://lambdadelta.info/" class="text">
 133       Helena is a λδ processor,
 134       implemented in <a href="http://caml.inria.fr/">Caml</a>
 135       as a part of the <a href="http://helm.cs.unibo.it/">HELM</a> software,
 136       meant for testing the stable features of the calculus as well as the unstable ones.
 137    </div>
 138    <div xmlns:ld="http://lambdadelta.info/" class="text">
 139       The processor source code is available in the directory
 140       <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>
 141       of the <a href="http://helm.cs.unibo.it/software/index.html">HELM Svn repository</a>.
 142       The Svn revisions containing the stable versions of Helena are indicated next.
 143    </div>
 144    <ul xmlns:ld="http://lambdadelta.info/">
 145       <li>
 146         <span class="date">Version 0.8.2.</span>
 147       In progress.
 148    </li>
 149     </ul>
 150    <ul xmlns:ld="http://lambdadelta.info/">
 151       <li>
 152         <span class="date">Version 0.8.1 (2010-11).</span>
 153       Exploits a subset of "complete_rg" λδ as the intermediate language.
 154       Features importation from ".hln" files containing λδ textual syntax.
 155       The overall validation speed of the "Grundlagen der Analysis"
 156       increases of 22% with respect to version 0.8.0.
 157       [Svn revision: 11032] (<a href="http://lambdadelta.info/download/helena_0.8.1.tar.gz">archived source code</a>)
 158       <ul>
 159           <li>
 160          A <a href="http://www.jedsoft.org/jed/">Jed mode</a>
 161          for editing ".hln" files (containing λδ textual syntax):
 162          <a href="http://lambdadelta.info/download/helena.sl">helena.sl</a>
 163          (revised <span class="date">2010-11</span>).
 164       </li>
 165           <li>
 166          <span class="date">2009-12.</span>
 167          Helena appears in F. Wiedijk's
 168          <a href="http://www.cs.ru.nl/%7Efreek/digimath/index.html#helena">
 169             index of computer math systems</a>.
 170       </li>
 171         </ul>
 172    </li>
 173     </ul>
 174    <ul xmlns:ld="http://lambdadelta.info/">
 175       <li>
 176         <span class="date">Version 0.8.0 (2009-09).</span>
 177       Supports "basic_rg" λδ with naive implementation of impredicative sort inclusion.
 178       Features importation from <a href="http://www.win.tue.nl/automath/">Automath</a>
 179       and exportation to <a href="http://www.w3.org/XML/">XML</a>.
 180       <a href="http://lambdadelta.info/documentation.html#ldR4">Documentation (R4)</a>.
 181       [Svn revision: 10304] (<a href="http://lambdadelta.info/download/helena_0.8.0.tar.gz">archived source code</a>).
 182       <ul>
 183           <li>
 184          A <a href="http://www.jedsoft.org/jed/">Jed mode</a>
 185          for editing ".aut" files
 186          (containing <a href="http://www.win.tue.nl/automath/">Automath</a> textual syntax):
 187          <a href="http://lambdadelta.info/download/automath.sl">automath.sl</a>
 188          (revised <span class="date">2008-07</span>).
 189       </li>
 190           <li>
 191          <span class="date">2009-09.</span>
 192          Jutting's specification of Landau's "Grundlagen der Analysis"
 193          enters λδ Digital Library.
 194       </li>
 195           <li>
 196          <span class="date">2009-06.</span>
 197          Jutting's specification of Landau's "Grundlagen der Analysis"
 198          is successfully processed, enabling sort inclusion.
 199       </li>
 200         </ul>
 201    </li>
 202     </ul>
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 229     <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Wed, 15 Oct 2014 15:37:19 +0200</div>
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