below.<br>
<h3><img style="width: 32px; height: 32px;"
alt="[Basic lambda_delta Logo]" title="Basic lambda_delta"
- src="download/basic_32.png"> Basic λδ version 2:</h3>
+ src="download/basic_32.png"> Basic λδ version 2 (in progress):</h3>
<table style="text-align: left; width: 100%;" border="0"
cellpadding="2" cellspacing="2">
<tbody>
+
<a
href="http://www.cs.unibo.it/pub/TR/UBLCS/ABSTRACTS/2009.bib?ncstrl.cabernet//BOLOGNA-UBLCS-2009-16"><span
style="font-style: italic;">Landau's
</table>
<h3><img style="width: 32px; height: 32px;"
alt="[Basic lambda_delta Logo]" title="Basic lambda_delta"
- src="download/basic_32.png"> Basic λδ version 1:</h3>
+ src="download/basic_32.png"> Basic λδ version 1 (closed):</h3>
<table style="text-align: left; width: 100%;" border="0"
cellpadding="2" cellspacing="2">
<tbody>
<td style="vertical-align: top;">1.2.<br>
</td>
<td style="vertical-align: top;">F. Guidi: <a
- href="download/cie_2007.pdf"><span
- style="font-style: italic;">Lambda Types on the Lambda Calculus with
+ href="download/cie_2007.pdf"><span style="font-style: italic;">Lambda
+Types on the Lambda Calculus with
Abbreviations</span></a> (<span style="font-weight: bold;">2007-06</span>).
In
+
<span style="font-style: italic;">CiE 2007 Local Proceedings</span>.
University
of
+
<a href="implementation.html#bibtex">BibTeX
entry</a>.<br>
<br>
+
<a href="implementation.html#bibtex">BibTeX
entry</a>.<br>
<br>
<td style="vertical-align: top;">1.6.<br>
</td>
<td style="vertical-align: top;">F. Guidi: <a
- href="download/ld_talk_4s.pdf"><span
- style="font-style: italic;">Towards the Unification of Terms, Types
+ href="download/ld_talk_4s.pdf"><span style="font-style: italic;">Towards
+the Unification of Terms, Types
and Contexts</span></a> (<span style="font-weight: bold;">2008-03</span>).
Presentation
at
<td style="vertical-align: top;">1.7.<br>
</td>
<td style="vertical-align: top;">F. Guidi: <a
- href="download/ld_talk_3s.pdf"><span
- style="font-style: italic;">Lambda Types on the Lambda Calculus with
+ href="download/ld_talk_3s.pdf"><span style="font-style: italic;">Lambda
+Types on the Lambda Calculus with
Abbreviations</span></a> (<span style="font-weight: bold;">2007-06</span>).
Presentation
at
<td style="vertical-align: top;">1.8.<br>
</td>
<td style="vertical-align: top;">F. Guidi: <a
- href="download/ld_talk_2s.pdf"><span
- style="font-style: italic;">Lambda Tipi sul Lambda Calcolo con
+ href="download/ld_talk_2s.pdf"><span style="font-style: italic;">Lambda
+Tipi sul Lambda Calcolo con
Abbreviazioni</span></a> (<span style="font-weight: bold;">2007-01</span>).
Presentation
at
+
<span style="font-weight: bold;">in
Italian</span>).<br>
<br>
<td style="vertical-align: top;">1.9.<br>
</td>
<td style="vertical-align: top;"><a name="bologna1"></a>F.
-Guidi: <a
- href="download/ld_talk_1s.pdf"><span
+Guidi: <a href="download/ld_talk_1s.pdf"><span
style="font-style: italic;">Lambda Tipi sul Lambda Calcolo con
Abbreviazioni: una Specifica Certificata</span></a> (<span
style="font-weight: bold;">2005-12</span>). Presentation at
title="PNG Used Here]"
src="http://www.cs.unibo.it/%7Efguidi/download/PNGnow2.png"><br>
<br>
-Last update 201
1-09-09 by <a href="http://www.cs.unibo.it/%7Efguidi/">Ferruccio
+Last update 201
2-02-21 by <a href="http://www.cs.unibo.it/%7Efguidi/">Ferruccio
Guidi</a><br>
</div>
</body>
<li><a name="static"></a>F. Guidi: <a
style="font-style: italic;" href="static/matita/lambda_delta/">lambda_delta</a>
(revised <span style="font-weight: bold;">2011-09</span>). Formal
-specification with the proof assistant <a
- href="http://matita.cs.unibo.it/">Matita</a> 0.5 (HTML pages generated
+specification for <a href="http://matita.cs.unibo.it/">Matita</a> 0.5
+(HTML pages generated
by the <a href="http://helm.cs.unibo.it/">HELM</a>
rendering engine)<br>
Here are the most relevant theorems proved in the formal specification:
style="font-style: italic;"
href="http://mowgli.cs.unibo.it:58080/apply?keys=RT&xmluri=http://helm.cs.unibo.it/helm//html/folder/index.html&prop.media-type=text/html&param.thmedia-type=text/html&param.thkeys=T1%2CT2%2CL%2CE&param.embedkeys=d_c%2CTC1%2CHC2%2CL&param.thencoding=UTF-8&prop.encoding=UTF-8&prop.doctype-public=-//W3C//DTD%20XHTML%201.0%20Transitional//EN&param.doctype-public=-//W3C//DTD%20XHTML%201.0%20Transitional//EN&param.encoding=UTF-8&param.media-type=text/html&param.keys=d_c%2CC1%2CHC2%2CL&profile=default&param.profile=default&param.CICURI=theory:/matita/lambda_delta/">lambda_delta</a>
(revised <span style="font-weight: bold;">2011-09</span>). Formal
-specification with the proof assistant <a
- href="http://matita.cs.unibo.it/">Matita</a> 0.5 (<a
+specification for <a href="http://matita.cs.unibo.it/">Matita</a> 0.5 (<a
href="http://helm.cs.unibo.it/">HELM</a> directory).<br>
<br>
</li>
<li><a name="source"></a>F. Guidi: <a
- href="download/lambda_delta_1.tar.gz"><span
- style="font-style: italic;">lambda_delta_1</span></a> (revised <span
- style="font-weight: bold;">2011-09</span>).
-Formal specification with the proof assistant <span
- style="font-weight: bold;">Coq 7.3.1</span> (source
+ href="download/lambda_delta_1.tar.gz"><span style="font-style: italic;">lambda_delta_1</span></a>
+(revised <span style="font-weight: bold;">2011-09</span>).
+Formal specification for <span style="font-weight: bold;">Coq 7.3.1</span>
+(source
proof scripts). <a href="#bibtex">BibTeX entry</a>.<br>
</li>
</ol>
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 below. <br>
+ <ul>
+ </ul>
+ <ul>
+ <li><span style="font-weight: bold;">Version 0.8.2.</span> In
+progress.<br>
+ </li>
+ </ul>
<ul>
<li><span style="font-weight: bold;">Version 0.8.1 (2010-11).</span>
Exploits a subset of "complete_rg" λδ as the intermediate language.
<ul>
<li><span style="font-weight: bold;">2009-12.</span> Helena
appears in F. Wiedijk's <a
- href="http://www.cs.ru.nl/%7Efreek/digimath/index.html#helena">index of
+ href="http://www.cs.ru.nl/%7Efreek/digimath/index.html#helena">index
+of
computer math systems</a>.</li>
</ul>
</li>
href="download/lambda_delta.bib"><span style="font-style: italic;">lambda_delta.bib</span></a>,
+
<a style="font-style: italic;"
href="download/lambda_delta.txt">lambda_delta.txt</a> (revised <span
style="font-weight: bold;">2011-09</span>).</li>
src="download/globe_trans.png"
style="border: 0px solid ; width: 147px; height: 42px;"></a> <img
style="width: 88px; height: 31px;" alt="[PNG Used Here]"
- title="PNG Used Here"
- src="download/PNGnow2.png"><br>
+ title="PNG Used Here" src="download/PNGnow2.png"><br>
<br>
-Last update 201
1-09-09 by <a href="http://www.cs.unibo.it/%7Efguidi/">Ferruccio
+Last update 201
2-02-21 by <a href="http://www.cs.unibo.it/%7Efguidi/">Ferruccio
Guidi</a><br>
</div>
</body>
<li>In particular, this refactoring involves file names and
path names.</li>
<li>The permanent λδ URL is sheduled to become <span
- style="font-style: italic;">http://lambda_delta.info</span> on December 2012.<br>
+ style="font-style: italic;">http://lambda_delta.info</span> on
+December 2012.<br>
</li>
</ul>
</ul>
</ul>
<ul>
<li><span style="font-weight: bold;">June 2009.</span> <span
- style="font-style: italic;">Helena</span>,
A <a
+ style="font-style: italic;">Helena</span>,
a <a
href="implementation.html#helena">validator for </a><a
- href="implementation.html#helena">λδ</a><span
+ href="implementation.html#helena">λ</a><a
+ href="implementation.html#helena">δ version 2</a><span
style="font-style: italic;"></span>, <span style="font-style: italic;"></span>is
available
as
part
of
the
+
<a href="http://helm.cs.unibo.it/">HELM</a> software. <br>
</li>
</ul>
<ul>
<li><span style="font-weight: bold;">July 2008.</span> First <a
href="http://helm.cs.unibo.it/procedural/">procedural
-reconstruction</a>
in <a href="http://matita.cs.unibo.it/">Matita 0.5</a>
-of the <a href="implementation.html#source">λδ proof scripts in
+reconstruction</a>
for <a href="http://matita.cs.unibo.it/">Matita 0.5</a>
+of the <a href="implementation.html#source">λδ proof scripts for
Coq 7.3.1</a>.<br>
</li>
</ul>
<ul>
<li><span style="font-weight: bold;">June 2008.</span> The <a
href="implementation.html#static">HTML
-pages of the specification of λδ in Matita 0.5</a> are online.<br>
+pages of the specification of λδ version 1 for Matita 0.5</a> are
+online.<br>
<span style="font-weight: bold;"></span></li>
</ul>
<ul>
<li><span style="font-weight: bold;">March 2008.</span> The
-specification of λδ version 2 begins in Coq 7.3.1 (false start).
+specification of λδ version 2 is started with Coq 7.3.1 (false start).
<!-- <ul>
<li>native type assignment with new rules for application: <span
style="font-style: italic;">nty</span> (it replaces <span
</ul>
<ul>
<li><span style="font-weight: bold;">September 2007.</span>
-The <a href="implementation.html#dynamic">specification of λδ in
+The <a href="implementation.html#dynamic">specification of λδ version
+1 for
Matita 0.4</a> is online.<br>
</li>
</ul>
</ul>
<ul>
<li><span style="font-weight: bold;">May 2004.</span> The <a
- href="implementation.html#source">specification of λδ in
-Coq 7.3.1</a> begins.<br>
+ href="implementation.html#source">specification of λδ version 1</a> is
+started with Coq 7.3.1.<br>
</li>
</ul>
<h3 style="text-align: right;">Visibility <img
style="width: 37px; height: 37px;" alt="[Butterfly]" title="Butterfly"
src="download/b4.png"></h3>
<ul>
- <li><span style="font-weight: bold;">November 2010.</span>
+ <li><span style="font-weight: bold;">February 2012.</span>
The <a href="http://www.google.com/">Google</a>
-search <span style="color: rgb(255, 0, 0);">formal system lambda delta</span>
-gives 8 resources about λδ as the first results.<br>
+search for <span style="color: rgb(255, 0, 0);">formal system lambda
+delta</span>
+gives 5 resources about λδ in the first 6 results.<br>
</li>
</ul>
<ul>
- <li><span style="font-weight: bold;">November 2010.</span>
+ <li><span style="font-weight: bold;">February 2012.</span>
The <a href="http://www.yahoo.com/">Yahoo</a>
search <span style="color: rgb(255, 0, 0);">formal system lambda delta</span>
-gives 4 resources and 2 sub-resources about λδ as the first results.</li>
+gives this site as the first result.</li>
</ul>
</td>
</tr>
style="width: 88px; height: 31px;" alt="[PNG Used Here]"
title="PNG Used Here" src="download/PNGnow2.png"><br>
<br>
-Last update 201
1-10-03 by <a href="http://www.cs.unibo.it/%7Efguidi/">Ferruccio
+Last update 201
2-02-21 by <a href="http://www.cs.unibo.it/%7Efguidi/">Ferruccio
Guidi</a><br>
</div>
</body>
projects / helm.git / commitdiff