helm/www/lambdadelta/news.html

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   8     <meta name="author" content="Ferruccio Guidi" />
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  22     <div class="head1">The Formal System λδ (\lambda\delta)</div>
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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="snns capitalize italic green">
  49               <a href="http://lambdadelta.info/implementation.html">implementation</a>
  50             </td>
  51             <td class="ssnn capitalize italic green">
  52               <br />
  53             </td>
  54           </tr>
  55           <tr>
  56             <td class="snns capitalize sky">
  57               <a href="http://lambdadelta.info/index.html#foreword">foreword</a>
  58             </td>
  59             <td class="snns capitalize magenta">
  60               <a href="http://lambdadelta.info/news.html#milestones">milestones</a>
  61             </td>
  62             <td class="snns capitalize orange">
  63               <a href="http://lambdadelta.info/documentation.html#v2">version 2</a>
  64             </td>
  65             <td class="snns capitalize green">
  66               <a href="http://lambdadelta.info/specification.html#v2">version 2</a>
  67             </td>
  68             <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>
  69             <td class="snns capitalize green">
  70               <a href="http://lambdadelta.info/implementation.html#lddl">library</a>
  71             </td>
  72             <td class="ssnn capitalize green">(<a href="http://lambdadelta.info/static/lddl/">static LDDL directory</a>)</td>
  73           </tr>
  74           <tr>
  75             <td class="snss capitalize sky">
  76               <a href="http://lambdadelta.info/index.html#citations">citations</a>
  77             </td>
  78             <td class="snss capitalize magenta">
  79               <a href="http://lambdadelta.info/news.html#visibility">visibility</a>
  80             </td>
  81             <td class="snss capitalize orange">
  82               <a href="http://lambdadelta.info/documentation.html#v1">version 1</a>
  83             </td>
  84             <td class="snss capitalize green">
  85               <a href="http://lambdadelta.info/specification.html#v1">version 1</a>
  86             </td>
  87             <td class="snsn capitalize green">(<a href="http://lambdadelta.info/static/matita/lambdadelta/">static HELM directory</a>)</td>
  88             <td class="snss capitalize green">
  89               <a href="http://lambdadelta.info/implementation.html#helena">helena</a>
  90             </td>
  91             <td class="sssn capitalize green">
  92               <br />
  93             </td>
  94           </tr>
  95         </tbody>
  96       </table>
  97     </div>
  98     <!-- ===================================================================== -->
  99     <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="milestones">Milestones <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b3.png" />
 100     </div>
 101     <ul xmlns:ld="http://lambdadelta.info/">
 102       <li>
 103         <span class="emph gamma">December 2014.</span>
 104         <a href="http://lambdadelta.info/implementation.html#v2">"Helena 0.8.2"</a> is released.
 105       <ul>
 106           <li>
 107          The corrected specification of Landau's "Grundlagen der Analysis"
 108          is validated in λδ version 3.
 109       </li>
 110         </ul>
 111       </li>
 112     </ul>
 113     <ul xmlns:ld="http://lambdadelta.info/">
 114       <li>
 115         <span class="emph gamma">October 2014.</span>
 116         <a href="http://lambdadelta.info/documentation.html#ldJ2">λδ version 2A</a>
 117       is released.
 118    </li>
 119     </ul>
 120     <ul xmlns:ld="http://lambdadelta.info/">
 121       <li>
 122         <span class="emph beta">July 2014.</span>
 123       A new version of this site is online.
 124    </li>
 125     </ul>
 126     <ul xmlns:ld="http://lambdadelta.info/">
 127       <li>
 128         <span class="emph beta">June 2014.</span>
 129         <a href="http://lambdadelta.info/documentation.html#ldP8">First communication on λδ version 2.</a>
 130       </li>
 131     </ul>
 132     <ul xmlns:ld="http://lambdadelta.info/">
 133       <li>
 134         <span class="emph alpha">December 2012.</span>
 135       The character "_" is removed from the denomination "lambda_delta":
 136       <ul>
 137           <li>
 138          The denomination "\lambda\delta" is used in λδ-related texts.
 139       </li>
 140           <li>
 141          The denomination "lambdadelta" is used in λδ-related identifiers.
 142       </li>
 143           <li>
 144          Permanent λδ URL acquired:
 145          <a href="http://lambdadelta.info/">http://lambdadelta.info/</a>
 146          (pointing at this site).
 147       </li>
 148         </ul>
 149       </li>
 150     </ul>
 151     <ul xmlns:ld="http://lambdadelta.info/">
 152       <li>
 153         <span class="emph alpha">September 2011.</span>
 154       The denomination "lambda-delta" changes to "lambda_delta":
 155       <ul>
 156           <li>
 157          The character "-" is reserved in λδ textual syntax
 158          (recognized by "Helena 0.8.1").
 159       </li>
 160           <li>
 161          Eventually, the occurrences of the character "-"
 162          will be replaced by "_" in all λδ-related identifiers.
 163       </li>
 164           <li>
 165          In particular, this refactoring involves file names and path names.
 166       </li>
 167         </ul>
 168       </li>
 169     </ul>
 170     <ul xmlns:ld="http://lambdadelta.info/">
 171       <li>
 172         <span class="emph alpha">April 2011.</span>
 173       The specification of <a href="http://lambdadelta.info/version_2.html">λδ version 2</a>
 174       and related topics is restarted in
 175       <a href="http://matita.cs.unibo.it/">Matita 0.5</a>.
 176    </li>
 177     </ul>
 178     <ul xmlns:ld="http://lambdadelta.info/">
 179       <li>
 180         <span class="emph delta">February 2011.</span>
 181       The specification of λδ version 2 with Coq 7.3.1 is abandoned.
 182    </li>
 183     </ul>
 184     <ul xmlns:ld="http://lambdadelta.info/">
 185       <li>
 186         <span class="emph alpha">December 2010.</span>
 187       Transient λδ URL acquired: http://lambda-delta.info/ (expires on December 2012).
 188    </li>
 189     </ul>
 190     <ul xmlns:ld="http://lambdadelta.info/">
 191       <li>
 192         <span class="emph beta">November 2010.</span>
 193         <a href="http://lambdadelta.info/implementation.html#v1">"Helena 0.8.1"</a> is released.
 194    </li>
 195     </ul>
 196     <ul xmlns:ld="http://lambdadelta.info/">
 197       <li>
 198         <span class="emph beta">September 2009.</span>
 199         <a href="http://lambdadelta.info/implementation.html#v0">"Helena 0.8.0"</a> is released and the
 200       <a href="http://lambdadelta.info/implementation.html#lddl">λδ Digital Library</a> is started.
 201    </li>
 202     </ul>
 203     <ul xmlns:ld="http://lambdadelta.info/">
 204       <li>
 205         <span class="emph alpha">June 2009.</span>
 206       "Helena", a <a href="http://lambdadelta.info/implementation.html#helena">validator for λδ version 2</a>,
 207       is available as a part of the <a href="http://helm.cs.unibo.it/">HELM</a> software.
 208    </li>
 209     </ul>
 210     <ul xmlns:ld="http://lambdadelta.info/">
 211       <li>
 212         <span class="emph alpha">September 2008.</span>
 213       This site is online.
 214    </li>
 215     </ul>
 216     <ul xmlns:ld="http://lambdadelta.info/">
 217       <li>
 218         <span class="emph delta">July 2008.</span>
 219         <a href="http://lambdadelta.info/documentation.html#ldJ1">First journal paper on λδ</a>
 220       accepted for publication.
 221    </li>
 222     </ul>
 223     <ul xmlns:ld="http://lambdadelta.info/">
 224       <li>
 225         <span class="emph delta">July 2008.</span>
 226       First <a href="http://helm.cs.unibo.it/procedural/">procedural reconstruction</a>
 227       for <a href="http://matita.cs.unibo.it/">Matita 0.5</a>
 228       of the λδ version 1 for Coq 7.3.1.
 229    </li>
 230     </ul>
 231     <ul xmlns:ld="http://lambdadelta.info/">
 232       <li>
 233         <span class="emph delta">June 2008.</span>
 234       The <a href="http://lambdadelta.info/version_1.html#static">
 235          HTML pages of the specification of λδ version 1 for Matita 0.5</a>
 236       are online.
 237    </li>
 238     </ul>
 239     <ul xmlns:ld="http://lambdadelta.info/">
 240       <li>
 241         <span class="emph delta">May 2008.</span>
 242       The specification of λδ version 1 is concluded.
 243    </li>
 244     </ul>
 245     <ul xmlns:ld="http://lambdadelta.info/">
 246       <li>
 247         <span class="emph alpha">March 2008.</span>
 248       The specification of λδ version 2 is started with Coq 7.3.1 (false start).
 249    </li>
 250     </ul>
 251     <ul xmlns:ld="http://lambdadelta.info/">
 252       <li>
 253         <span class="emph gamma">September 2007.</span>
 254       The <a href="http://lambdadelta.info/version_1.html#dynamic">
 255          specification of λδ version 1 for Matita 0.4</a>
 256       is online.
 257    </li>
 258     </ul>
 259     <ul xmlns:ld="http://lambdadelta.info/">
 260       <li>
 261         <span class="emph gamma">November 2006.</span>
 262         <a href="http://lambdadelta.info/documentation.html#ldR2">λδ version 1</a>
 263       is released.
 264    </li>
 265     </ul>
 266     <ul xmlns:ld="http://lambdadelta.info/">
 267       <li>
 268         <span class="emph beta">December 2005.</span>
 269         <a href="http://lambdadelta.info/documentation.html#ldP1">First communication on λδ version 1</a>.
 270    </li>
 271     </ul>
 272     <ul xmlns:ld="http://lambdadelta.info/">
 273       <li>
 274         <span class="emph alpha">May 2004.</span>
 275       The specification of <a href="http://lambdadelta.info/version_1.html">λδ version 1</a>
 276       is started with Coq 7.3.1.
 277    </li>
 278     </ul>
 279     <!-- ===================================================================== -->
 280     <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="visibility">Visibility <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b3.png" />
 281     </div>
 282     <ul xmlns:ld="http://lambdadelta.info/">
 283       <li>
 284         <span class="emph alpha">June 2014.</span>
 285       The <a href="http://www.google.com/">Google</a>
 286       search for "formal system lambda delta" gives
 287       5 resources about λδ in the first 6 results.
 288    </li>
 289     </ul>
 290     <ul xmlns:ld="http://lambdadelta.info/">
 291       <li>
 292         <span class="emph alpha">June 2014.</span>
 293       The <a href="http://www.yahoo.com/">Yahoo</a>
 294       search for "formal system lambda delta" gives
 295       4 resources about λδ in the first 5 results.
 296    </li>
 297     </ul>
 298     <div class="spacer">
 299       <img class="rule" alt="[Spacer]" title="lambdadelta rainbow rule" src="http://lambdadelta.info/images/rainbow.png" />
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 324     <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Mon, 05 Jan 2015 00:32:03 +0100</div>
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