helm/www/lambdadelta/news.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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  27       <br />
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  29     <div xmlns:ld="http://lambdadelta.info/" class="text">
  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 white">
  40               <a href="http://lambdadelta.info/specification.html">specification</a>
  41             </td>
  42             <td class="snnn capitalize italic white">
  43               <br />
  44             </td>
  45             <td class="snnn capitalize italic white">
  46               <br />
  47             </td>
  48             <td class="snns capitalize italic orange">
  49               <a href="http://lambdadelta.info/documentation.html">documentation</a>
  50             </td>
  51             <td class="snns capitalize italic green">
  52               <a href="http://lambdadelta.info/implementation.html">implementation</a>
  53             </td>
  54             <td class="ssnn capitalize italic green">
  55               <br />
  56             </td>
  57           </tr>
  58           <tr>
  59             <td class="snns capitalize sky">
  60               <a href="http://lambdadelta.info/index.html#foreword">foreword</a>
  61             </td>
  62             <td class="snns capitalize magenta">
  63               <a href="http://lambdadelta.info/news.html#milestones">milestones</a>
  64             </td>
  65             <td class="snns capitalize white">
  66               <a href="http://lambdadelta.info/specification.html#v2">version 2</a>
  67             </td>
  68             <td class="snnn capitalize white">(<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="snnn capitalize white">
  70               <br />
  71             </td>
  72             <td class="snns capitalize orange">
  73               <a href="http://lambdadelta.info/documentation.html#v2">version 2</a>
  74             </td>
  75             <td class="snns capitalize green">
  76               <a href="http://lambdadelta.info/implementation.html#lddl">library</a>
  77             </td>
  78             <td class="ssnn capitalize green">(<a href="http://lambdadelta.info/static/lddl/">static LDDL directory</a>)</td>
  79           </tr>
  80           <tr>
  81             <td class="snss capitalize sky">
  82               <a href="http://lambdadelta.info/index.html#citations">citations</a>
  83             </td>
  84             <td class="snss capitalize magenta">
  85               <a href="http://lambdadelta.info/news.html#visibility">visibility</a>
  86             </td>
  87             <td class="snss capitalize white">
  88               <a href="http://lambdadelta.info/specification.html#v1">version 1</a>
  89             </td>
  90             <td class="snsn capitalize white">(<a href="http://lambdadelta.info/ground_1.html">background</a> - <a href="http://lambdadelta.info/basic_1.html">core</a>)</td>
  91             <td class="snsn capitalize white">(<a href="http://lambdadelta.info/static/matita/lambdadelta/">static HELM directory</a>)</td>
  92             <td class="snss capitalize orange">
  93               <a href="http://lambdadelta.info/documentation.html#v1">version 1</a>
  94             </td>
  95             <td class="snss capitalize green">
  96               <a href="http://lambdadelta.info/implementation.html#helena">helena</a>
  97             </td>
  98             <td class="sssn capitalize green">
  99               <br />
 100             </td>
 101           </tr>
 102         </tbody>
 103       </table>
 104     </div>
 105     <!-- ===================================================================== -->
 106     <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" />
 107     </div>
 108     <ul xmlns:ld="http://lambdadelta.info/">
 109       <li>
 110         <span class="emph delta">August 2015.</span>
 111       The specification of λδ version 2A1 is concluded.
 112    </li>
 113     </ul>
 114     <ul xmlns:ld="http://lambdadelta.info/">
 115       <li>
 116         <span class="emph delta">March 2015.</span>
 117       The specification of λδ version 1 is validated by
 118       <a href="http://matita.cs.unibo.it/">Matita 0.99.2</a>.
 119    </li>
 120     </ul>
 121     <ul xmlns:ld="http://lambdadelta.info/">
 122       <li>
 123         <span class="emph gamma">February 2015.</span>
 124         <a href="http://lambdadelta.info/implementation.html#v2">"Helena 0.8.2"</a> is updated.
 125       <ul>
 126           <li>
 127          The translated specification of Landau's "Grundlagen der Analysis"
 128          is validated in λC by <a href="http://coq.inria.fr/">Coq 8.4.3</a>.
 129       </li>
 130         </ul>
 131       </li>
 132     </ul>
 133     <ul xmlns:ld="http://lambdadelta.info/">
 134       <li>
 135         <span class="emph delta">January 2015.</span>
 136       The specification of <a href="http://lambdadelta.info/specification.html#v1">λδ version 1</a>
 137       is updated with backports from the abandoned specification of λδ version 2.
 138    </li>
 139     </ul>
 140     <ul xmlns:ld="http://lambdadelta.info/">
 141       <li>
 142         <span class="emph gamma">December 2014.</span>
 143         <a href="http://lambdadelta.info/implementation.html#v2">"Helena 0.8.2"</a> is released.
 144       <ul>
 145           <li>
 146          The corrected specification of Landau's "Grundlagen der Analysis"
 147          is validated in λδ version 3.
 148       </li>
 149         </ul>
 150       </li>
 151     </ul>
 152     <ul xmlns:ld="http://lambdadelta.info/">
 153       <li>
 154         <span class="emph gamma">October 2014.</span>
 155         <a href="http://lambdadelta.info/documentation.html#ldJ2a">λδ version 2A1</a>
 156       is released.
 157    </li>
 158     </ul>
 159     <ul xmlns:ld="http://lambdadelta.info/">
 160       <li>
 161         <span class="emph beta">July 2014.</span>
 162       A new version of this site is online.
 163    </li>
 164     </ul>
 165     <ul xmlns:ld="http://lambdadelta.info/">
 166       <li>
 167         <span class="emph beta">June 2014.</span>
 168         <a href="http://lambdadelta.info/documentation.html#ldP2c">First communication on λδ version 2.</a>
 169       </li>
 170     </ul>
 171     <ul xmlns:ld="http://lambdadelta.info/">
 172       <li>
 173         <span class="emph alpha">December 2012.</span>
 174       The character "_" is removed from the denomination "lambda_delta":
 175       <ul>
 176           <li>
 177          The denomination "\lambda\delta" is used in λδ-related texts.
 178       </li>
 179           <li>
 180          The denomination "lambdadelta" is used in λδ-related identifiers.
 181       </li>
 182           <li>
 183          Permanent λδ URL acquired:
 184          <a href="http://lambdadelta.info/">http://lambdadelta.info/</a>
 185          (pointing at this site).
 186       </li>
 187         </ul>
 188       </li>
 189     </ul>
 190     <ul xmlns:ld="http://lambdadelta.info/">
 191       <li>
 192         <span class="emph alpha">September 2011.</span>
 193       The denomination "lambda-delta" changes to "lambda_delta":
 194       <ul>
 195           <li>
 196          The character "-" is reserved in λδ textual syntax
 197          (recognized by "Helena 0.8.1").
 198       </li>
 199           <li>
 200          Eventually, the occurrences of the character "-"
 201          will be replaced by "_" in all λδ-related identifiers.
 202       </li>
 203           <li>
 204          In particular, this refactoring involves file names and path names.
 205       </li>
 206         </ul>
 207       </li>
 208     </ul>
 209     <ul xmlns:ld="http://lambdadelta.info/">
 210       <li>
 211         <span class="emph alpha">April 2011.</span>
 212       The specification of <a href="http://lambdadelta.info/specification.html#v2">λδ version 2</a>
 213       and related topics is restarted in
 214       <a href="http://matita.cs.unibo.it/">Matita 0.5</a>.
 215    </li>
 216     </ul>
 217     <ul xmlns:ld="http://lambdadelta.info/">
 218       <li>
 219         <span class="emph delta">February 2011.</span>
 220       The specification of λδ version 2 with Coq 7.3.1 is abandoned.
 221    </li>
 222     </ul>
 223     <ul xmlns:ld="http://lambdadelta.info/">
 224       <li>
 225         <span class="emph alpha">December 2010.</span>
 226       Transient λδ URL acquired: http://lambda-delta.info/ (expires on December 2012).
 227    </li>
 228     </ul>
 229     <ul xmlns:ld="http://lambdadelta.info/">
 230       <li>
 231         <span class="emph beta">November 2010.</span>
 232         <a href="http://lambdadelta.info/implementation.html#v1">"Helena 0.8.1"</a> is released.
 233    </li>
 234     </ul>
 235     <ul xmlns:ld="http://lambdadelta.info/">
 236       <li>
 237         <span class="emph beta">September 2009.</span>
 238         <a href="http://lambdadelta.info/implementation.html#v0">"Helena 0.8.0"</a> is released and the
 239       <a href="http://lambdadelta.info/implementation.html#lddl">λδ Digital Library</a> is started.
 240    </li>
 241     </ul>
 242     <ul xmlns:ld="http://lambdadelta.info/">
 243       <li>
 244         <span class="emph alpha">June 2009.</span>
 245       "Helena", a <a href="http://lambdadelta.info/implementation.html#helena">validator for λδ version 2</a>,
 246       is available as a part of the <a href="http://helm.cs.unibo.it/">HELM</a> software.
 247    </li>
 248     </ul>
 249     <ul xmlns:ld="http://lambdadelta.info/">
 250       <li>
 251         <span class="emph alpha">September 2008.</span>
 252       This site is online.
 253    </li>
 254     </ul>
 255     <ul xmlns:ld="http://lambdadelta.info/">
 256       <li>
 257         <span class="emph delta">July 2008.</span>
 258         <a href="http://lambdadelta.info/documentation.html#ldJ1a">First journal paper on λδ</a>
 259       accepted for publication.
 260    </li>
 261     </ul>
 262     <ul xmlns:ld="http://lambdadelta.info/">
 263       <li>
 264         <span class="emph delta">July 2008.</span>
 265       First <a href="http://helm.cs.unibo.it/procedural/">procedural reconstruction</a>
 266       for <a href="http://matita.cs.unibo.it/">Matita 0.5</a>
 267       of the λδ version 1 for Coq 7.3.1.
 268    </li>
 269     </ul>
 270     <ul xmlns:ld="http://lambdadelta.info/">
 271       <li>
 272         <span class="emph delta">June 2008.</span>
 273       The <a href="http://lambdadelta.info/specification.html#static1">
 274          HTML pages of the specification of λδ version 1 for Matita 0.5</a>
 275       are online.
 276    </li>
 277     </ul>
 278     <ul xmlns:ld="http://lambdadelta.info/">
 279       <li>
 280         <span class="emph delta">May 2008.</span>
 281       The specification of λδ version 1 is concluded.
 282    </li>
 283     </ul>
 284     <ul xmlns:ld="http://lambdadelta.info/">
 285       <li>
 286         <span class="emph alpha">March 2008.</span>
 287       The specification of λδ version 2 is started with Coq 7.3.1 (false start).
 288    </li>
 289     </ul>
 290     <ul xmlns:ld="http://lambdadelta.info/">
 291       <li>
 292         <span class="emph gamma">September 2007.</span>
 293       The <a href="http://lambdadelta.info/specification.html#dynamic1">
 294          specification of λδ version 1 for Matita 0.4</a>
 295       is online.
 296    </li>
 297     </ul>
 298     <ul xmlns:ld="http://lambdadelta.info/">
 299       <li>
 300         <span class="emph gamma">November 2006.</span>
 301         <a href="http://lambdadelta.info/documentation.html#ldR1b">λδ version 1</a>
 302       is released.
 303    </li>
 304     </ul>
 305     <ul xmlns:ld="http://lambdadelta.info/">
 306       <li>
 307         <span class="emph beta">December 2005.</span>
 308         <a href="http://lambdadelta.info/documentation.html#ldP1a">First communication on λδ version 1</a>.
 309    </li>
 310     </ul>
 311     <ul xmlns:ld="http://lambdadelta.info/">
 312       <li>
 313         <span class="emph alpha">May 2004.</span>
 314       The specification of <a href="http://lambdadelta.info/specification.html#v1">λδ version 1</a>
 315       is started with Coq 7.3.1.
 316    </li>
 317     </ul>
 318     <!-- ===================================================================== -->
 319     <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" />
 320     </div>
 321     <ul xmlns:ld="http://lambdadelta.info/">
 322       <li>
 323         <span class="emph alpha">June 2014.</span>
 324       The <a href="http://www.google.com/">Google</a>
 325       search for "formal system lambda delta" gives
 326       5 resources about λδ in the first 6 results.
 327    </li>
 328     </ul>
 329     <ul xmlns:ld="http://lambdadelta.info/">
 330       <li>
 331         <span class="emph alpha">June 2014.</span>
 332       The <a href="http://www.yahoo.com/">Yahoo</a>
 333       search for "formal system lambda delta" gives
 334       4 resources about λδ in the first 5 results.
 335    </li>
 336     </ul>
 337     <div class="spacer">
 338       <img class="rule" alt="[Spacer]" title="lambdadelta rainbow rule" src="http://lambdadelta.info/images/rainbow.png" />
 339     </div>
 340     <div xmlns:ld="http://lambdadelta.info/" class="spacer">
 341       <br />
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 356       <a href="http://www.anybrowser.org/campaign/">
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 359     </div>
 360     <div xmlns:ld="http://lambdadelta.info/" class="spacer">
 361       <br />
 362     </div>
 363     <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Thu, 10 Dec 2015 16:13:46 +0100</div>
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