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+ <td class="snns capitalize magenta">
+ <a href="http://lambdadelta.info/news.html#milestones">milestones</a>
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- <td class="snns green">
- <a href="http://lambdadelta.info/version_2.html">Version 2</a>
+ <td class="snns capitalize white">
+ <a href="http://lambdadelta.info/specification.html#v2">version 2</a>
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- <a href="http://lambdadelta.info/ground_2.html">Background</a>
+ <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>
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+ <td class="snns capitalize green">
+ <a href="http://lambdadelta.info/implementation.html#lddl">library</a>
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+ <td class="ssnn capitalize green">(<a href="http://lambdadelta.info/static/lddl/">static LDDL directory</a>)</td>
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- <td class="nnss sky">
- <br />
+ <td class="snss capitalize sky">
+ <a href="http://lambdadelta.info/index.html#citations">citations</a>
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- <br />
+ <td class="snss capitalize magenta">
+ <a href="http://lambdadelta.info/news.html#visibility">visibility</a>
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- <br />
+ <td class="snss capitalize white">
+ <a href="http://lambdadelta.info/specification.html#v1">version 1</a>
</td>
- <td class="snss green">
- <a href="http://lambdadelta.info/version_1.html">Version 1</a>
+ <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>
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- <br />
+ <td class="snss capitalize green">
+ <a href="http://lambdadelta.info/implementation.html#helena">helena</a>
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- <br />
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+ <td class="sssn capitalize green">
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- <div xmlns:ld="http://lambdadelta.info/" class="text">
+
<div xmlns:ld="http://lambdadelta.info/" class="text">
The formal system λδ (\lambda\delta) is a typed λ-calculus aiming to support
the foundations of Mathematics that require an underlying specification language
(for example the <a href="http://www.math.unipd.it/~maietti/">Minimal Type Theory</a>
and its predecessors).
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
+
<div xmlns:ld="http://lambdadelta.info/" class="text">
λδ is developed in the context of the
<a href="http://helm.cs.unibo.it/">Hypertextual Electronic Library of Mathematics</a>
as a machine-checked digital specification
- that is not the formal counterpart of some previously published informal material.
- </div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
- λδ comes in several versions listed in the following table,
- which includes the major milestones:
+ that is not the formal counterpart of previous informal material.
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
- <table cellpadding="4" cellspacing="0">
- <tbody>
- <tr>
- <td class="snns component gray">version</td>
- <td class="snnn component gray">name</td>
- <td class="snnn component gray">developed with</td>
- <td class="snnn component gray">started</td>
- <td class="snnn component gray">announced</td>
- <td class="snnn component gray">released</td>
- <td class="ssnn component gray">dismissed</td>
- </tr>
- <tr>
- <td class="snns orange">2</td>
- <td class="snnn orange">
- <a href="http://lambdadelta.info/version_2.html">basic_2</a>
- </td>
- <td class="snnn orange">
- <a href="http://matita.cs.unibo.it/">Matita 0.99.2</a>
- </td>
- <td class="snnn orange">April 2011</td>
- <td class="snnn orange">July 2014</td>
- <td class="snnn orange">Planned in 2014</td>
- <td class="ssnn orange">Not planned yet</td>
- </tr>
- <tr>
- <td class="snss red">1</td>
- <td class="snsn red">
- <a href="http://lambdadelta.info/version_1.html">basic_1</a>
- </td>
- <td class="snsn red">
- <a href="http://coq.inria.fr/">Coq 7.3.1</a>
- </td>
- <td class="snsn red">May 2004</td>
- <td class="snsn red">January 2006</td>
- <td class="snsn red">November 2006</td>
- <td class="sssn red">May 2008</td>
- </tr>
- </tbody>
- </table>
- </div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
+ <div xmlns:ld="http://lambdadelta.info/" class="text">
This is the System logo: <a href="http://lambdadelta.info/images/crux_177.png">crux_177.png</a>
- (revised <span class="date">2012-09</span>).
+ (revised <span class="emph alpha">2012-09</span>).
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+ <span class="emph alpha">Notice for the user of Internet Explorer.</span>
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-
- <div class="spacer">
+ <!-- ===================================================================== -->
+ <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="citations">Citations <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b9.png" />
+ </div>
+ <div xmlns:ld="http://lambdadelta.info/" class="text">
+ This is a list of publications citing λδ (not including our own).
+ </div>
+ <ul xmlns:ld="http://lambdadelta.info/" id="C6">
+ <li>
+ A. Asperti, W. Ricciotti, C. Sacerdoti Coen, E. Tassi:
+ <span class="emph alpha">Formal metatheory of programming languages in the Matita interactive theorem prover</span>
+ (2012). In JAR 49(3), pp. 427-451.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/" id="C5">
+ <li>
+ M.E. Maietti:
+ <span class="emph alpha">Consistency of the minimalist foundation with Church thesis and Bar Induction</span>
+ (2012). Submitted article.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/" id="C4">
+ <li>
+ W. Ricciotti:
+ <span class="emph alpha">Theoretical and implementation aspects in the mechanization of the metatheory of programming languages</span>
+ (July 2011). Ph.D. Thesis in Computer Science, Technical Report UBLCS-2011-09, University of Bologna.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/" id="C3">
+ <li>
+ C.E. Brown:
+ <span class="emph alpha">Faithful Reproductions of the Automath Landau Formalization</span>
+ (2011). Typescript note.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/" id="C2">
+ <li>
+ M.E. Maietti:
+ <span class="emph alpha">A minimalist two-level foundation for constructive mathematics</span>
+ (2009). In APAL 160(3), pp. 319-354.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/" id="C1">
+ <li>
+ V. Rahili:
+ <span class="emph alpha">First Year Report: Realisability methods of proof and semantics with application to expansion</span>
+ (July 2007). Typescript note.
+ </li>
+ </ul>
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- <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Mon, 14 Jul 2014 22:47:32 +0200</div>
-</body>
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projects / helm.git / blobdiff