<div class="spacer">
<img class="rule" alt="[Spacer]" title="lambdadelta 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">
<td class="snnn capitalize italic green">
<br />
</td>
- <td class="ssns capitalize italic green">
+ <td class="snns capitalize italic green">
<a href="http://lambdadelta.info/implementation.html">implementation</a>
</td>
+ <td class="ssnn capitalize italic green">
+ <br />
+ </td>
</tr>
<tr>
<td class="snns capitalize sky">
<a href="http://lambdadelta.info/specification.html#v2">version 2</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">
+ <td class="snns capitalize green">
<a href="http://lambdadelta.info/implementation.html#lddl">library</a>
</td>
+ <td class="ssnn capitalize green">(<a href="http://lambdadelta.info/static/lddl/">static LDDL directory</a>)</td>
</tr>
<tr>
<td class="snss capitalize sky">
<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">
+ <td class="snsn capitalize green">(<a href="http://lambdadelta.info/static/matita/lambdadelta/">static HELM directory</a>)</td>
+ <td class="snss capitalize green">
<a href="http://lambdadelta.info/implementation.html#helena">helena</a>
</td>
+ <td class="sssn capitalize green">
+ <br />
+ </td>
</tr>
</tbody>
</table>
</div>
-
- <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="specifications">Computer-checked formal specifications <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b5.png" />
+ <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="specifications">Computer-checked formal specifications <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b5.png" />
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
+
<div xmlns:ld="http://lambdadelta.info/" class="text">
λδ is developed as a machine-checked digital specification.
It comes in several versions listed in the next table,
which includes the major milestones.
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
+
<div xmlns:ld="http://lambdadelta.info/" class="text">
The life cycle of a specification consists of four periods.
<span class="emph alpha">Alpha:</span>
the definitions are designed and the major propositions are proved,
<span class="emph delta">Delta:</span>
after its conclusion, the specification is modified just for maintenance.
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
+
<div xmlns:ld="http://lambdadelta.info/" class="text">
<table cellpadding="4" cellspacing="0">
<tbody>
<tr>
</tbody>
</table>
</div>
-
-
-
- <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="v2">
+ <!-- VERSION 2 =========================================================== -->
+ <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="v2">
<img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b4.png" /> λδ version 2 (active)</div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
+
<div xmlns:ld="http://lambdadelta.info/" class="text">
The formal specification of λδ version 2
is available in the following formats:
</div>
-
- <ul xmlns:ld="http://lambdadelta.info/" id="source2">
+ <ul xmlns:ld="http://lambdadelta.info/" id="source2">
<li>
- <div class="text">
- <a href="http://lambdadelta.info/download/lambdadelta_2.tar.gz">lambdadelta_2 for Matita 0.99.2</a>
+
<a href="http://lambdadelta.info/download/lambdadelta_2.tar.gz">lambdadelta_2 for Matita 0.99.2</a>
(revised <span class="emph gamma">2014-10</span>).
Source scripts.
</div>
- <div class="text">
The scripts are grouped in directories, first by part, then by component.
</div>
- <div class="text">
- <span class="emph alpha">Notice:</span>
+ <span class="emph alpha">Notice:</span>
the scripts are checked by the latest version of Matita from
<a href="http://matita.cs.unibo.it/download.shtml">HELM Subversion repository</a>
at path <trunk/matita/>.
</div>
- </li>
+ </li>
</ul>
-
- <div xmlns:ld="http://lambdadelta.info/" class="text">
+ <div xmlns:ld="http://lambdadelta.info/" class="text">
Informational pages on the parts of the specification:
<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>.
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
+
<div xmlns:ld="http://lambdadelta.info/" class="text">
<span class="emph alpha">Notice on numerical acounts:</span>
nodes are counted according to the "intrinsic complexity measure"
[F. Guidi: "Procedural Representation of CIC Proof Terms"
Journal of Automated Reasoning 44(1-2), Springer (February 2010), pp. 53-78].
</div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
+
<div xmlns:ld="http://lambdadelta.info/" class="text">
<span class="emph alpha">Notice on displayed logical structures:</span>
from the logical standpoint, the source scripts are grouped in "planes"
and these are grouped in "components";
the notation for the relations or functions
introduced in each script, is shown in parentheses (? are placeholders).
</div>
-
-
-
- <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="v1">
+ <!-- VERSION 1 =========================================================== -->
+ <div xmlns:ld="http://lambdadelta.info/" class="head3sn" id="v1">
<img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b6.png" /> λδ version 1 (superseded)</div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
+
<div xmlns:ld="http://lambdadelta.info/" class="text">
The formal specification of λδ version 1
is available in the following formats:
</div>
-
- <ul xmlns:ld="http://lambdadelta.info/" id="source1">
+ <ul xmlns:ld="http://lambdadelta.info/" id="source1">
<li>
- <div class="text">
- <a href="http://lambdadelta.info/download/lambdadelta_1.tar.gz">lambdadelta_1 for Coq 7.3.1</a>
+
<a href="http://lambdadelta.info/download/lambdadelta_1.tar.gz">lambdadelta_1 for Coq 7.3.1</a>
(revised <span class="emph delta">2012-10</span>).
Source scripts.
- </div>
- <div class="text">
+ </div>
The scripts are grouped in directories, one for each part.
</div>
- </li>
+ </li>
</ul>
-
- <ul xmlns:ld="http://lambdadelta.info/" id="static1">
+ <ul xmlns:ld="http://lambdadelta.info/" id="static1">
<li>
- <a href="http://lambdadelta.info/static/matita/lambdadelta/">lambdadelta_1 for Matita 0.5</a>
+
<a href="http://lambdadelta.info/static/matita/lambdadelta/">lambdadelta_1 for Matita 0.5</a>
(revised <span class="emph delta">2011-09</span>).
Static HTML pages generated by the <a href="http://helm.cs.unibo.it/">HELM</a> rendering engine.
<ul>
<li>
- <a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/pr3/pr3/pr3_confluence.con.html">
+
<a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/pr3/pr3/pr3_confluence.con.html">
Confluence of reduction</a>
(Church-Rosser property).
</li>
<li>
- <a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/props/ty3_correct.con.html">
+
<a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/props/ty3_correct.con.html">
Correctness of types</a>.
</li>
<li>
- <a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/props/ty3_unique.con.html">
+
<a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/props/ty3_unique.con.html">
Uniqueness of types up to conversion</a>.
</li>
<li>
- <a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/pr3/ty3_sred_pr3.con.html">
+
<a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/pr3/ty3_sred_pr3.con.html">
Subject reduction of the type assignment</a>.
</li>
<li>
- <a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/arity_props/ty3_sn3.con.html">
+
<a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/arity_props/ty3_sn3.con.html">
Strong normalization of the typed terms</a>.
</li>
<li>
- <a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/dec/ty3_inference.con.html">
+
<a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/dec/ty3_inference.con.html">
Decidability of the type inference problem</a>.
</li>
</ul>
- </li>
+ </li>
</ul>
-
- <ul xmlns:ld="http://lambdadelta.info/" id="dynamic1">
+ <ul xmlns:ld="http://lambdadelta.info/" id="dynamic1">
<li>
- <a 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/lambdadelta/">
+
<a 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/lambdadelta/">
lambdadelta_1 for Matita 0.5</a>
(revised <span class="emph delta">2011-09</span>).
<a href="http://helm.cs.unibo.it/">HELM</a> directory.
<span class="emph alpha">Notice: the HELM rendering engine is offline.</span>
- </li>
+ </li>
</ul>
-
- <div class="spacer">
+ <div class="spacer">
<img class="rule" alt="[Spacer]" title="lambdadelta 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="spacer">Last update: Wed, 24 Dec 2014 22:58:52 +0100</div>
-</body>
+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Mon, 05 Jan 2015 00:32:03 +0100</div>
+ </body>
</html>
projects / helm.git / blobdiff