site update for helena 0.8.3

[helm.git] / helm / www / lambdadelta / implementation.html

diff --git a/helm/www/lambdadelta/implementation.html b/helm/www/lambdadelta/implementation.html
index 53a82992a2d7e392c38e060823a02eaa01698d26..90f3bfd87c5555e8460273934b790413109ed953 100644 (file)
--- a/helm/www/lambdadelta/implementation.html
+++ b/helm/www/lambdadelta/implementation.html
@@ -19,7 +19,7 @@
         <img class="icon32" alt="[lambdadelta home]" title="lambdadelta home" src="http://lambdadelta.info/images/crux_32.png" />
       </a>
     </div>
-    <div class="head1">The Formal System λδ (\lambda\delta)</div>
+    <div class="head1">The Formal Systems of the λδ (\lambda\delta) Family</div>
     <div class="spacer">
       <img class="rule" alt="[Spacer]" title="lambdadelta rainbow rule" src="http://lambdadelta.info/images/rainbow.png" />
     </div>
@@ -108,7 +108,7 @@
       <img class="icon32" alt="[Crux logo]" title="the Crux" src="http://lambdadelta.info/images/crux_32.png" /> λδ Digital Library (LDDL)</div>
     <div xmlns:ld="http://lambdadelta.info/" class="text">
       The λδ Digital Library is part of <a href="http://helm.cs.unibo.it/">HELM</a>
-      and contains resources expressed in λδ.      
+      and contains resources expressed in the systems of the λδ family.      
    </div>
     <ul xmlns:ld="http://lambdadelta.info/" id="contents">
       <li>
@@ -136,10 +136,10 @@
     <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="helena">
       <img class="icon32" alt="[Helena logo]" title="Helena" src="http://lambdadelta.info/images/helena_32.png" /> Helena</div>
     <div xmlns:ld="http://lambdadelta.info/" class="text">
-      Helena is a processor for λδ,
+      Helena is a processor for the systems of the λδ family,
       implemented in <a href="http://caml.inria.fr/">Caml</a>
       as a part of the <a href="http://helm.cs.unibo.it/">HELM</a> software,
-      meant for testing the stable features of the calculus as well as the unstable ones.
+      meant for testing both their stable and unstable features.
    </div>
     <div xmlns:ld="http://lambdadelta.info/" class="text">
       The processor source code is available in the directory
@@ -147,10 +147,32 @@
       of the <a href="http://helm.cs.unibo.it/software/index.html">HELM Svn repository</a>.
       The Svn revisions containing the stable versions of Helena are indicated next.
    </div>
+    <ul xmlns:ld="http://lambdadelta.info/" id="v3">
+      <li>
+        <span class="emph gamma">Version 0.8.3 (2015-12).</span>
+      Supports exportation to λProlog
+      (two formats for ELPI,
+      and two formats for <a href="http://teyjus.cs.umn.edu/">Teyjus</a>).
+      Employs optimized conditional compilation through
+      <a href="http://camlp5.gforge.inria.fr/">camlp5</a> code preprocessor (pa_macro)
+      to reduce a performance loss, which is expected to disappear
+      by employing a different code preprocessor.
+      Overall validation speed of the "Grundlagen der Analysis" with respect to version 0.8.2:
+      +3% with optimized compilation, +5% without optimized compilation.
+      [Svn revision: 13108] (<a href="http://lambdadelta.info/download/helena_0.8.3.tar.gz">archived source code</a>).
+      <ul>
+          <li>
+            <span class="emph gamma">2015-06.</span>
+         The corrected specification of Landau's "Grundlagen der Analysis"
+         is successfully validated in a λProlog implementation of λδ version 3.
+      </li>
+        </ul>
+      </li>
+    </ul>
     <ul xmlns:ld="http://lambdadelta.info/" id="v2">
       <li>
         <span class="emph gamma">Version 0.8.2 (2015-02).</span>
-      Uses λδ "Version 3" with layer variables as core language.
+      Uses λδ version 3 with layer variables as core language.
       Supports exportation to Gallina
       (the specification language of <a href="http://coq.inria.fr/">Coq</a>),
       and to Grafite
@@ -185,7 +207,7 @@
           <li>
             <span class="emph gamma">2014-12.</span>
          The corrected specification of Landau's "Grundlagen der Analysis"
-         is successfully validated in λδ "Version 3".
+         is successfully validated in λδ version 3.
       </li>
         </ul>
       </li>
@@ -193,7 +215,7 @@
     <ul xmlns:ld="http://lambdadelta.info/" id="v1">
       <li>
         <span class="emph beta">Version 0.8.1 (2010-11).</span>
-      Uses a subset of λδ "Version 4" as intermediate language.
+      Uses a subset of λδ version 4 as intermediate language.
       Features importation from ".hln" files containing λδ textual syntax.
       The overall validation speed of the "Grundlagen der Analysis"
       increases of 22% with respect to version 0.8.0.
@@ -217,7 +239,7 @@
     <ul xmlns:ld="http://lambdadelta.info/" id="v0">
       <li>
         <span class="emph beta">Version 0.8.0 (2009-09).</span>
-      Supports λδ "Version 2" with naive implementation of impredicative sort inclusion.
+      Supports λδ version 2 with naive implementation of impredicative sort inclusion.
       Features importation from <a href="http://www.win.tue.nl/automath/">Automath</a>
       and exportation to <a href="http://www.w3.org/XML/">XML</a>.
       <a href="http://lambdadelta.info/documentation.html#ldR2a">Documentation (R2a)</a>.
@@ -269,6 +291,6 @@
     <div xmlns:ld="http://lambdadelta.info/" class="spacer">
       <br />
     </div>
-    <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Thu, 10 Dec 2015 18:24:26 +0100</div>
+    <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Wed, 30 Dec 2015 12:08:04 +0100</div>
   </body>
 </html>