<body lang="en-US">
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<a href="http://lambdadelta.info/">
- <img class="icon32" alt="[lambdadelta home]" title="lambdadelta home" src="http://lambdadelta.info/images/crux_32.png" />
+ <img class="icon32" alt="[\lambda\delta home]" title="\lambda\delta 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" />
+ <img class="rule" alt="[Spacer]" title="\lambda\delta rainbow rule" src="http://lambdadelta.info/images/rainbow.png" />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">
+
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
<div xmlns:ld="http://lambdadelta.info/" class="text">
<tbody>
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<td class="snns capitalize italic sky">
- <a href="http://lambdadelta.info/index.html">home</a>
+ <a href="http://lambdadelta.info/home.html">home</a>
</td>
<td class="snns capitalize italic magenta">
<a href="http://lambdadelta.info/news.html">news</a>
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+ <td class="snns capitalize italic white">
+ <a href="http://lambdadelta.info/specification.html">specification</a>
+ </td>
+ <td class="snnn capitalize italic white">
+ <br />
+ </td>
+ <td class="snnn capitalize italic white">
+ <br />
+ </td>
<td class="snns capitalize italic orange">
<a href="http://lambdadelta.info/documentation.html">documentation</a>
</td>
<td class="snns capitalize italic green">
- <a href="http://lambdadelta.info/specification.html">specification</a>
+ <a href="http://lambdadelta.info/implementation.html">implementation</a>
</td>
- <td class="snnn capitalize italic green">
+ <td class="ssnn capitalize italic green">
<br />
</td>
- <td class="ssns capitalize italic green">
- <a href="http://lambdadelta.info/implementation.html">implementation</a>
- </td>
</tr>
<tr>
<td class="snns capitalize sky">
- <a href="http://lambdadelta.info/index.html#foreword">foreword</a>
+ <a href="http://lambdadelta.info/home.html#foreword">foreword</a>
</td>
<td class="snns capitalize magenta">
<a href="http://lambdadelta.info/news.html#milestones">milestones</a>
</td>
+ <td class="snns capitalize white">
+ <a href="http://lambdadelta.info/specification.html#v2">version 2</a>
+ </td>
+ <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>
+ <td class="snnn capitalize white">
+ <br />
+ </td>
<td class="snns capitalize orange">
<a href="http://lambdadelta.info/documentation.html#v2">version 2</a>
</td>
<td class="snns capitalize green">
- <a href="http://lambdadelta.info/specification.html#v2">version 2</a>
+ <a href="http://lambdadelta.info/implementation.html#helena">helena</a>
</td>
- <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>
- <td class="ssns capitalize green">
- <a href="http://lambdadelta.info/implementation.html#lddl">library</a>
+ <td class="ssnn capitalize green">
+ <a href="http://lambdadelta.info/osn/">Open Symbolic Notation (OSN)</a>
</td>
</tr>
<tr>
<td class="snss capitalize sky">
- <a href="http://lambdadelta.info/index.html#notice">notice</a>
+ <a href="http://lambdadelta.info/home.html#citations">citations</a>
</td>
<td class="snss capitalize magenta">
<a href="http://lambdadelta.info/news.html#visibility">visibility</a>
</td>
+ <td class="snss capitalize white">
+ <a href="http://lambdadelta.info/specification.html#v1">version 1</a>
+ </td>
+ <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>
+ <td class="snsn capitalize white">(<a href="http://lambdadelta.info/static/matita/lambdadelta/">static HELM directory</a>)</td>
<td class="snss capitalize orange">
<a href="http://lambdadelta.info/documentation.html#v1">version 1</a>
</td>
<td class="snss capitalize green">
- <a href="http://lambdadelta.info/specification.html#v1">version 1</a>
- </td>
- <td class="snsn capitalize green">
- <br />
- </td>
- <td class="ssss capitalize green">
- <a href="http://lambdadelta.info/implementation.html#helena">helena</a>
+ <a href="http://lambdadelta.info/implementation.html#lddl">library</a>
</td>
+ <td class="sssn capitalize green">(<a href="http://lambdadelta.info/static/lddl/">static LDDL directory</a>)</td>
</tr>
</tbody>
</table>
</div>
-
- <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="tools">Tools <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b5.png" />
+ <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="tools">Tools <img class="icon37" alt="[butterfly]" title="\lambda\delta butterfly" src="http://lambdadelta.info/images/b5.png" />
</div>
-
- <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="lddl">
- <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.
+ <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="osn">
+ <a href="http://lambdadelta.info/osn/">
+ <img class="w3c" alt="[Open Symbolic Notation logo]" title="OSN: Open Symbolic Notation" src="http://lambdadelta.info/images/osn_label.png" />
+ </a> Open Symbolic Notation</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="text">
+ Open Symbolic Notation, abbreviated OSN,
+ is an easy and flexible data-interchange text format
+ intended for the lightweight representation of
+ generic abstract syntax trees in the domain of formal languages.
+ Additional information is available at <a href="http://lambdadelta.info/osn/">OSN web site</a>.
</div>
- <ul xmlns:ld="http://lambdadelta.info/">
- <li>
- <span class="date">Contents:</span>
- Landau's "Grundlagen der Analysis"
- (from Jutting's specification in <a href="http://www.win.tue.nl/automath/">Automath</a>).
- </li>
- </ul>
- <ul xmlns:ld="http://lambdadelta.info/">
- <li>
- <span class="date">Access:</span>
- <a href="http://lambdadelta.info/static/lddl/">static pages</a> (updated <span class="date">2012-10</span>),
- <a href="http://lambdadelta.info/download/lddl.tar.bz2">data set</a> (updated <span class="date">2012-10</span>),
- <a href="http://lambdadelta.info/xml/">HELM server URL</a> (updated <span class="date">2012-10</span>).
- </li>
- </ul>
- <ul xmlns:ld="http://lambdadelta.info/">
- <li>
- <span class="date">Examples:</span>
- <a href="http://lambdadelta.info/static/lddl/brg_si/grundlagen/l/e/st/eq/landau/n/rt/rp/r/c/8283/t234.ld.html">
- Grundlagen's definition "t234"</a>
- (in "basic_rg" λδ),
- <a href="http://lambdadelta.info/static/lddl/crg_si/grundlagen/l/e/st/eq/landau/n/rt/rp/r/c/8283/t234.ld.html">
- Grundlagen's definition "t234"</a>
- (in "complete_rg" λδ).
- </li>
- </ul>
-
- <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="helena">
+ <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 λδ processor,
+
<div xmlns:ld="http://lambdadelta.info/" class="text">
+ 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">
+
<div xmlns:ld="http://lambdadelta.info/" class="text">
The processor source code is available in the directory
<a href="http://helm.cs.unibo.it/websvn/listing.php?repname=helm&path=%2Ftrunk%2Fhelm%2Fsoftware%2Fhelena%2F&rev=0&sc=0">/trunk/helm/software/helena/</a>
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/">
+ <ul xmlns:ld="http://lambdadelta.info/" id="v3">
<li>
- <span class="date">Version 0.8.2.</span>
- In progress.
- </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 class="">
+ <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.
+ Supports exportation to Gallina
+ (the specification language of <a href="http://coq.inria.fr/">Coq</a>),
+ and to Grafite
+ (the specification language of <a href="http://matita.cs.unibo.it/">Matita</a>).
+ The overall validation speed of the "Grundlagen der Analysis"
+ increases of 34% with respect to version 0.8.1.
+ <a href="http://lambdadelta.info/documentation.html#ldJ3a">Documentation (J3a)</a>.
+ [Svn revision: 13035] (<a href="http://lambdadelta.info/download/helena_0.8.2.tar.gz">archived source code</a>).
+ <ul>
+ <li class="">
+ The specification of Landau's "Grundlagen der Analysis"
+ for <a href="http://coq.inria.fr/">Coq 8</a>:
+ <a href="http://lambdadelta.info/download/grundlagen_2.v">grundlagen_2.v</a>
+ (revised <span class="emph gamma">2015-02</span>).
+ </li>
+ <li class="">
+ The specification of Landau's "Grundlagen der Analysis"
+ for <a href="http://matita.cs.unibo.it/">Matita 0.99.2</a>:
+ <a href="http://lambdadelta.info/download/grundlagen_2.tar.bz2">grundlagen_2.tar.bz2</a>
+ (revised <span class="emph gamma">2015-02</span>).
+ </li>
+ <li class="">
+ The corrected specification of Landau's "Grundlagen der Analysis":
+ <a href="http://lambdadelta.info/download/grundlagen_2.aut">grundlagen_2.aut</a>
+ (revised <span class="emph gamma">2014-12</span>).
+ </li>
+ <li class="">
+ <span class="emph gamma">2015-02.</span>
+ The translated specification of Landau's "Grundlagen der Analysis"
+ is successfully validated in CC by <a href="http://coq.inria.fr/">Coq 8.4.3</a>.
+ </li>
+ <li class="">
+ <span class="emph gamma">2014-12.</span>
+ The corrected specification of Landau's "Grundlagen der Analysis"
+ is successfully validated in λδ version 3.
+ </li>
+ </ul>
+ </li>
</ul>
- <ul xmlns:ld="http://lambdadelta.info/">
+ <ul xmlns:ld="http://lambdadelta.info/" id="v1">
<li>
- <span class="date">Version 0.8.1 (2010-11).</span>
- Exploits a subset of "complete_rg" λδ as the intermediate language.
+ <span class="emph beta">Version 0.8.1 (2010-11).</span>
+ 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.
- [Svn revision: 11032] (<a href="http://lambdadelta.info/download/helena_0.8.1.tar.gz">archived source code</a>)
+ [Svn revision: 11032] (<a href="http://lambdadelta.info/download/helena_0.8.1.tar.gz">archived source code</a>).
<ul>
- <li>
+ <li class="">
A <a href="http://www.jedsoft.org/jed/">Jed mode</a>
for editing ".hln" files (containing λδ textual syntax):
<a href="http://lambdadelta.info/download/helena.sl">helena.sl</a>
- (revised <span class="date">2010-11</span>).
+ (revised <span class="emph alpha">2010-11</span>).
</li>
- <li>
- <span class="date">2009-12.</span>
+ <li class="">
+ <span class="emph beta">2009-12.</span>
Helena appears in F. Wiedijk's
<a href="http://www.cs.ru.nl/%7Efreek/digimath/index.html#helena">
index of computer math systems</a>.
</li>
</ul>
- </li>
+ </li>
</ul>
- <ul xmlns:ld="http://lambdadelta.info/">
+ <ul xmlns:ld="http://lambdadelta.info/" id="v0">
<li>
- <span class="date">Version 0.8.0 (2009-09).</span>
- Supports "basic_rg" λδ with naive implementation of impredicative sort inclusion.
+ <span class="emph beta">Version 0.8.0 (2009-09).</span>
+ 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#ldR4">Documentation (R4)</a>.
+ <a href="http://lambdadelta.info/documentation.html#ldR2a">Documentation (R2a)</a>.
[Svn revision: 10304] (<a href="http://lambdadelta.info/download/helena_0.8.0.tar.gz">archived source code</a>).
<ul>
- <li>
+ <li class="">
A <a href="http://www.jedsoft.org/jed/">Jed mode</a>
for editing ".aut" files
(containing <a href="http://www.win.tue.nl/automath/">Automath</a> textual syntax):
<a href="http://lambdadelta.info/download/automath.sl">automath.sl</a>
- (revised <span class="date">2008-07</span>).
+ (revised <span class="emph gamma">2008-07</span>).
</li>
- <li>
- <span class="date">2009-09.</span>
+ <li class="">
+ <span class="emph beta">2009-09.</span>
Jutting's specification of Landau's "Grundlagen der Analysis"
enters λδ Digital Library.
</li>
- <li>
- <span class="date">2009-06.</span>
+ <li class="">
+ <span class="emph beta">2009-06.</span>
Jutting's specification of Landau's "Grundlagen der Analysis"
is successfully processed, enabling sort inclusion.
</li>
</ul>
+ </li>
+ </ul>
+ <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="lddl">
+ <img class="icon32" alt="[\lambda\delta digital library logo]" title="LDDL: \lambda\delta digital library" 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 the systems of the λδ family.
+ </div>
+ <ul xmlns:ld="http://lambdadelta.info/" id="contents">
+ <li>
+ <span class="emph alpha">Contents:</span>
+ Landau's "Grundlagen der Analysis"
+ (from Jutting's specification in <a href="http://www.win.tue.nl/automath/">Automath</a>).
</li>
</ul>
- <div class="spacer">
- <img class="rule" alt="[Spacer]" title="lambdadelta rainbow rule" src="http://lambdadelta.info/images/rainbow.png" />
+ <ul xmlns:ld="http://lambdadelta.info/" id="access">
+ <li>
+ <span class="emph alpha">Access:</span>
+ <a href="http://lambdadelta.info/static/lddl/">static pages</a> (updated <span class="emph gamma">2015-01</span>),
+ <a href="http://lambdadelta.info/download/lddl.tar.bz2">data set</a> (updated <span class="emph gamma">2014-12</span>),
+ <a href="http://lambdadelta.info/xml/">HELM server URL</a> (updated <span class="emph gamma">2014-12</span>).
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/" id="examples">
+ <li>
+ <span class="emph alpha">Examples:</span>
+ <a href="http://lambdadelta.info/static/lddl/Environment/grundlagen_2/l/e/st/eq/landau/n/rt/rp/r/c/8283/t234.ld.html">
+ Grundlagen's definition "t234"</a>
+ in λδ version 4.
+ </li>
+ </ul>
+ <div class="spacer">
+ <img class="rule" alt="[Spacer]" title="\lambda\delta rainbow rule" src="http://lambdadelta.info/images/rainbow.png" />
</div>
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
<div xmlns:ld="http://lambdadelta.info/" class="spacer">
<br />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Tue, 14 Oct 2014 00:04:55 +0200</div>
-</body>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Fri, 24 Nov 2017 21:00:00 +0100</div>
+ </body>
</html>
projects / helm.git / blobdiff