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8     <meta name="author" content="Ferruccio Guidi" />
9     <meta name="description" content="\lambda\delta home page" />
10     <title>\lambda\delta home page</title>
11     <link rel="stylesheet" type="text/css" href="http://lambdadelta.info/css/ld_web.css" />
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16   <body lang="en-US">
17     <div class="spacer">
18       <a href="http://lambdadelta.info/">
19         <img class="icon32" alt="[lambdadelta home]" title="lambdadelta home" src="http://lambdadelta.info/images/crux_32.png" />
20       </a>
21     </div>
22     <div class="head1">The Formal System λδ version 1</div>
23     <div class="spacer">
24       <img class="rule" alt="[Spacer]" title="lambdadelta rainbow rule" src="http://lambdadelta.info/images/rainbow.png" />
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26    <div xmlns:ld="http://lambdadelta.info/" class="spacer">
27       <br />
28     </div>
29     <div xmlns:ld="http://lambdadelta.info/" class="text">
30       <table cellpadding="4" cellspacing="0">
31         <tbody>
32           <tr>
33             <td class="snns component sky">
34               <a href="http://lambdadelta.info/index.html">foreword</a>
35             </td>
36             <td class="snns component magenta">
37               <a href="http://lambdadelta.info/news.html">news</a>
38             </td>
39             <td class="snns component orange">
40               <a href="http://lambdadelta.info/documentation.html">documentation</a>
41             </td>
42             <td class="snns component green">
43               <a href="http://lambdadelta.info/implementation.html">implementation</a>
44             </td>
45             <td class="snnn component green">
46               <br />
47             </td>
48             <td class="snnn component green">
49               <br />
50             </td>
51             <td class="ssnn component green">
52               <br />
53             </td>
54           </tr>
55           <tr>
56             <td class="snns sky">
57               <br />
58             </td>
59             <td class="snns magenta">
60               <br />
61             </td>
62             <td class="snns orange">
63               <br />
64             </td>
65             <td class="snns green">
66               <a href="http://lambdadelta.info/version_2.html">Version 2</a>
67             </td>
68             <td class="snnn green">
69               <a href="http://lambdadelta.info/ground_2.html">Background</a>
70             </td>
71             <td class="snnn green">
72               <a href="http://lambdadelta.info/basic_2.html">Core</a>
73             </td>
74             <td class="ssnn green">
75               <a href="http://lambdadelta.info/apps_2.html">Applications</a>
76             </td>
77           </tr>
78           <tr>
79             <td class="nnss sky">
80               <br />
81             </td>
82             <td class="nnss magenta">
83               <br />
84             </td>
85             <td class="nnss orange">
86               <br />
87             </td>
88             <td class="snss green">
89               <a href="http://lambdadelta.info/version_1.html">Version 1</a>
90             </td>
91             <td class="snsn green">
92               <br />
93             </td>
94             <td class="snsn green">
95               <br />
96             </td>
97             <td class="sssn green">
98               <br />
99             </td>
100           </tr>
101         </tbody>
102       </table>
103     </div>
104
105    <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="foreword">Formats <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b6.png" />
106     </div>
107    <div xmlns:ld="http://lambdadelta.info/" class="text">
108       The formal specification of λδ version 1
109       is available in the following formats:
110       <ul id="source">
111         <li>
112          <a href="http://lambdadelta.info/download/lambdadelta_1.tar.gz">lambdadelta_1 for Coq 7.3.1</a>
113          (revised <span class="date">2012-10</span>).
114          Source scripts.
115       </li>
116       </ul>
117       <ul id="static">
118         <li>
119          <a href="http://lambdadelta.info/static/matita/lambdadelta/">lambdadelta_1 for Matita 0.5"</a>
120          (revised <span class="date">2011-09</span>).
121          Static HTML pages generated by the <a href="http://helm.cs.unibo.it/">HELM</a> rendering engine.  
122          <ul>
123             <li>
124                <a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/pr3/pr3/pr3_confluence.con.html">
125                   Confluence of reduction</a>
126                (Church-Rosser property).
127             </li>
128             <li>
129                <a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/props/ty3_correct.con.html">
130                   Correctness of types</a>.
131             </li>
132             <li>
133                <a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/props/ty3_unique.con.html">
134                   Uniqueness of types up to conversion</a>.
135             </li>
136             <li>
137                <a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/pr3/ty3_sred_pr3.con.html">
138                   Subject reduction of the type assignment</a>.
139             </li>
140             <li>
141                <a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/arity_props/ty3_sn3.con.html">
142                   Strong normalization of the typed terms</a>.
143             </li>
144             <li>
145                <a href="http://lambdadelta.info/static/matita/lambdadelta/basic_1/ty3/dec/ty3_inference.con.html">
146                   Decidability of the type inference problem</a>.
147             </li>
148          </ul>
149       </li>
150       </ul>
151       <ul id="dynamic">
152         <li>
153          <a href="http://mowgli.cs.unibo.it:58080/apply?keys=RT&amp;xmluri=http://helm.cs.unibo.it/helm//html/folder/index.html&amp;prop.media-type=text/html&amp;param.thmedia-type=text/html&amp;param.thkeys=T1%2CT2%2CL%2CE&amp;param.embedkeys=d_c%2CTC1%2CHC2%2CL&amp;param.thencoding=UTF-8&amp;prop.encoding=UTF-8&amp;prop.doctype-public=-//W3C//DTD%20XHTML%201.0%20Transitional//EN&amp;param.doctype-public=-//W3C//DTD%20XHTML%201.0%20Transitional//EN&amp;param.encoding=UTF-8&amp;param.media-type=text/html&amp;param.keys=d_c%2CC1%2CHC2%2CL&amp;profile=default&amp;param.profile=default&amp;param.CICURI=theory:/matita/lambdadelta/">
154             lambdadelta_1 for Matita 0.5"</a>
155          (revised <span class="date">2011-09</span>).
156          <a href="http://helm.cs.unibo.it/">HELM</a> directory.
157          <span class="date">Notice: the HELM rendering engine is offline.</span>
158       </li>
159       </ul>
160    </div>
161
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183       </a>
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186       <br />
187     </div>
188     <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Mon, 14 Jul 2014 22:49:03 +0200</div>
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