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<br>
- <a href="http://lambdadelta.info"><img alt="[Crux Logo]" title="The Crux" src="images/crux_32.png" style="border: 0px solid ; width: 32px; height: 32px;"></a>
+ <a href="http://lambdadelta.info
/"><img alt="[Crux Logo]" title="The Crux" src="images/crux_32.png" style="border: 0px solid ; width: 32px; height: 32px;"></a>
<h1>The Formal System λδ (\lambda\delta)<br>
</h1>
<h2>Towards the unification of terms, types, environments and
paper (as it happens for most currently digitalized
Mathematics).<br>
<ol>
- <li><a name="static"></a>F. Guidi: <a style="font-style: italic;" href="static/matita/lambdadelta/">lambdadelta</a>
+ <li><a name="static"></a>F. Guidi: <a style="font-style: italic;" href="http://lambdadelta.info/static/matita/lambdadelta/">lambdadelta</a>
(revised <span style="font-weight: bold;">2011-09</span>).
Formal
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>
+ rendering engine)
Here are the most relevant theorems proved in the
formal specification:
<ul>
- <li><a href="static/matita/lambdadelta/Basic_1/pr3/pr3/pr3_confluence.con.html">Confluence
+ <li><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="static/matita/lambdadelta/Basic_1/ty3/props/ty3_correct.con.html">Correctness
+ <li><a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/props/ty3_correct.con.html">Correctness
of
types</a>.</li>
- <li><a href="static/matita/lambdadelta/Basic_1/ty3/props/ty3_unique.con.html">Uniqueness
+ <li><a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/props/ty3_unique.con.html">Uniqueness
of
types
up
to
conversion</a>.<br>
</li>
- <li><a href="static/matita/lambdadelta/Basic_1/ty3/pr3/ty3_sred_pr3.con.html">Subject
+ <li><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="static/matita/lambdadelta/Basic_1/ty3/arity_props/ty3_sn3.con.html">Strong
+ <li><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="static/matita/lambdadelta/Basic_1/ty3/dec/ty3_inference.con.html">Decidability
+ <li><a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/dec/ty3_inference.con.html">Decidability
of
the
type
(revised <span style="font-weight: bold;">2011-09</span>).
Formal
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>
+ <span style="font-weight: bold;">Currently, the HELM rendering engine is offline.</span><br>
+ <br>
</li>
- <li><a name="ldp1"></a>F. Guidi: <a href="download/lambdadelta_1.tar.gz"><span style="font-style: italic;">lambdadelta_1</span></a>
- (revised <span style="font-weight: bold;">2011-09</span>).
+ <li><a name="ldp1"></a>F. Guidi: <a href="http://lambdadelta.info/download/lambdadelta_1.tar.gz"><span style="font-style: italic;">lambdadelta_1</span></a>
+ (revised <span style="font-weight: bold;">2012-10</span>).
Formal
specification for <span style="font-weight: bold;">Coq
7.3.1</span>
<span style="font-weight: bold;"></span></li>
</ul>
<ul>
- <li><span style="font-weight: bold;">Access:</span> <a href="static/lddl/">static pages</a> (updated <span style="font-weight: bold;">2011-09</span>), <a href="download/lddl.tar.bz2">data set</a> (updated <span style="font-weight: bold;">2011-09</span>), <a href="http://lambdadelta.info/xml">HELM server URL</a>
- (updated <span style="font-weight: bold;">2011-09</span>).</li>
+ <li><span style="font-weight: bold;">Access:</span> <a
+href="http://lambdadelta.info/static/lddl/">static pages</a> (updated <span style="font-weight: bold;">2012-10</span>), <a href="http://lambdadelta.info/download/lddl.tar.bz2">data set</a> (updated <span style="font-weight: bold;">2012-10</span>), <a href="http://lambdadelta.info/xml/">HELM server URL</a>
+ (updated <span style="font-weight: bold;">2012-10</span>).</li>
</ul>
<ul>
- <li><span style="font-weight: bold;">Examples:</span> <a href="static/lddl/brg_si/grundlagen/l/e/st/eq/landau/n/rt/rp/r/c/8283/t234.ld.html">Grundlagen's
+ <li><span style="font-weight: bold;">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="static/lddl/crg_si/grundlagen/l/e/st/eq/landau/n/rt/rp/r/c/8283/t234.ld.html">Grundlagen's
+ "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).<br>
</li>
der
Analysis</span>" increases of 22% with respect to
version 0.8.0. [Svn
- revision: 11032] (<a href="download/helena_0.8.1.tar.gz">archived
+ revision: 11032] (<a href="http://lambdadelta.info/download/helena_0.8.1.tar.gz">archived
source code</a>)
<ul>
<li><span style="font-weight: bold;">2009-12.</span>
importation from <a href="http://www.win.tue.nl/automath/">Automath</a>
and exportation to <a href="http://www.w3.org/XML/">XML</a>.
[Svn
- revision: 10304] (<a href="download/helena_0.8.0.tar.gz">archived
+ revision: 10304] (<a href="http://lambdadelta.info/download/helena_0.8.0.tar.gz">archived
source code</a>)<br>
<ul>
<li><span style="font-weight: bold;">2009-09.</span>
<h3 style="text-align: right;">Other resources <img style="width: 37px; height: 37px;" alt="[Butterfly]" title="Butterfly" src="images/b4.png"></h3>
<ul>
<li><a name="bibtex"></a>A
- BibTeX database of λδ documentation: <a href="download/lambdadelta.bib"><span style="font-style: italic;">lambdadelta.bib</span></a>,
- <a style="font-style: italic;" href="download/lambdadelta.txt">lambdadelta.txt</a>
- (revised <span style="font-weight: bold;">2011-09</span>).</li>
+ BibTeX database of λδ documentation: <a href="http://lambdadelta.info/download/lambdadelta.bib"><span style="font-style: italic;">lambdadelta.bib</span></a>,
+ <a style="font-style: italic;" href="http://lambdadelta.info/download/lambdadelta.txt">lambdadelta.txt</a>
+ (revised <span style="font-weight: bold;">2012-10</span>).</li>
</ul>
<ul>
<li>A <a href="http://www.jedsoft.org/jed/">Jed mode</a>
for
- editing ".hln" files (containing λδ textual syntax): <a style="font-style: italic;" href="download/helena.sl">helena.sl</a>
+ editing ".hln" files (containing λδ textual syntax): <a style="font-style: italic;" href="http://lambdadelta.info/download/helena.sl">helena.sl</a>
(revised <span style="font-weight: bold;">2010-11</span>).</li>
</ul>
<ul>
<li>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 style="font-style: italic;" href="download/automath.sl">automath.sl</a>
+ textual syntax): <a style="font-style: italic;" href="http://lambdadelta.info/download/automath.sl">automath.sl</a>
(revised <span style="font-weight: bold;">2008-07</span>).</li>
</ul>
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- Last update 201
2-12-01 by <a href="http://www.cs.unibo.it/%7Efguidi/">Ferruccio
+ Last update 201
4-02-22 by <a href="http://www.cs.unibo.it/%7Efguidi/">Ferruccio
Guidi</a><br>
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