<page xmlns="http://lambdadelta.info/"
description = "\lambda\delta home page"
title = "\lambda\delta home page"
- head = "The Formal System λδ (\lambda\delta)"
+ logo = "crux"
+ head = "The Formal Systems of the λδ (\lambda\delta) Family"
>
<sitemap name="sitemap"/>
<section3 name="milestones">Milestones</section3>
+ <news class="alpha" date="December 2015.">
+ <rlink to="html/documentation.html#ldJ3a">Second journal paper on λδ</rlink>
+ accepted for publication.
+ </news>
+
+ <news class="gamma" date="December 2015.">
+ <rlink to="html/implementation.html#v3">"Helena 0.8.3"</rlink> is released.
+ </news>
+
+ <news class="delta" date="August 2015.">
+ The specification of λδ version 2A1 is concluded.
+ </news>
+
+ <news class="gamma" date="June 2015.">
+ The corrected specification of Landau's "Grundlagen der Analysis"
+ is validated in a λProlog implementation of λδ version 3.
+ </news>
+
<news class="delta" date="March 2015.">
The specification of λδ version 1 is validated by
<link to="http://matita.cs.unibo.it/">Matita 0.99.2</link>.
</news>
<news class="gamma" date="February 2015.">
- <rlink to="implementation.html#v2">"Helena 0.8.2"</rlink> is updated.
+ <rlink to="html/implementation.html#v2">"Helena 0.8.2"</rlink> is updated.
<list><item>
The translated specification of Landau's "Grundlagen der Analysis"
- is validated in λC by <link to="http://coq.inria.fr/">Coq 8.4.3</link>.
+ is validated in CC by <link to="http://coq.inria.fr/">Coq 8.4.3</link>.
</item></list>
</news>
<news class="delta" date="January 2015.">
- The specification of <rlink to="specification.html#v1">λδ version 1</rlink>
+ The specification of <rlink to="html/specification.html#v1">λδ version 1</rlink>
is updated with backports from the abandoned specification of λδ version 2.
</news>
<news class="gamma" date="December 2014.">
- <rlink to="implementation.html#v2">"Helena 0.8.2"</rlink> is released.
+ <rlink to="html/implementation.html#v2">"Helena 0.8.2"</rlink> is released.
<list><item>
The corrected specification of Landau's "Grundlagen der Analysis"
is validated in λδ version 3.
</news>
<news class="gamma" date="October 2014.">
- <rlink to="documentation.html#ldJ2a">λδ version 2A</rlink>
+ <rlink to="html/documentation.html#ldJ2a">λδ version 2A1</rlink>
is released.
</news>
</news>
<news class="beta" date="June 2014.">
- <rlink to="documentation.html#ldP2c">First communication on λδ version 2.</rlink>
+ <rlink to="html/documentation.html#ldP2c">First communication on λδ version 2.</rlink>
</news>
<news class="alpha" date="December 2012.">
</news>
<news class="alpha" date="April 2011.">
- The specification of <rlink to="specification.html#v2">λδ version 2</rlink>
+ The specification of <rlink to="html/specification.html#v2">λδ version 2</rlink>
and related topics is restarted in
<link to="http://matita.cs.unibo.it/">Matita 0.5</link>.
</news>
</news>
<news class="beta" date="November 2010.">
- <rlink to="implementation.html#v1">"Helena 0.8.1"</rlink> is released.
+ <rlink to="html/implementation.html#v1">"Helena 0.8.1"</rlink> is released.
</news>
<news class="beta" date="September 2009.">
- <rlink to="implementation.html#v0">"Helena 0.8.0"</rlink> is released and the
- <rlink to="implementation.html#lddl">λδ Digital Library</rlink> is started.
+ <rlink to="html/implementation.html#v0">"Helena 0.8.0"</rlink> is released and the
+ <rlink to="html/implementation.html#lddl">λδ Digital Library</rlink> is started.
</news>
<news class="alpha" date="June 2009.">
- "Helena", a <rlink to="implementation.html#helena">validator for λδ version 2</rlink>,
+ "Helena", a <rlink to="html/implementation.html#helena">validator for λδ version 2</rlink>,
is available as a part of the <link to="http://helm.cs.unibo.it/">HELM</link> software.
</news>
</news>
<news class="delta" date="July 2008.">
- <rlink to="documentation.html#ldJ1">First journal paper on λδ</rlink>
+ <rlink to="html/documentation.html#ldJ1a">First journal paper on λδ</rlink>
accepted for publication.
</news>
</news>
<news class="delta" date="June 2008.">
- The <rlink to="specification.html#static1">
+ The <rlink to="html/specification.html#static1">
HTML pages of the specification of λδ version 1 for Matita 0.5</rlink>
are online.
</news>
</news>
<news class="gamma" date="September 2007.">
- The <rlink to="specification.html#dynamic1">
+ The <rlink to="html/specification.html#dynamic1">
specification of λδ version 1 for Matita 0.4</rlink>
is online.
</news>
<news class="gamma" date="November 2006.">
- <rlink to="documentation.html#ldR1b">λδ version 1</rlink>
+ <rlink to="html/documentation.html#ldR1b">λδ version 1</rlink>
is released.
</news>
<news class="beta" date="December 2005.">
- <rlink to="documentation.html#ldP1a">First communication on λδ version 1</rlink>.
+ <rlink to="html/documentation.html#ldP1a">First communication on λδ version 1</rlink>.
</news>
<news class="alpha" date="May 2004.">
- The specification of <rlink to="specification.html#v1">λδ version 1</rlink>
+ The specification of <rlink to="html/specification.html#v1">λδ version 1</rlink>
is started with Coq 7.3.1.
</news>
<news class="alpha" date="June 2014.">
The <link to="http://www.google.com/">Google</link>
search for "formal system lambda delta" gives
- 5 resources about λδ in the first 6 results.
+ 5 resources about the λδ family in the first 6 results.
</news>
<news class="alpha" date="June 2014.">
The <link to="http://www.yahoo.com/">Yahoo</link>
search for "formal system lambda delta" gives
- 4 resources about λδ in the first 5 results.
+ 4 resources about the λδ family in the first 5 results.
</news>
<footer/>