helm/www/lambdadelta/web/home/specification.ldw.xml

   1 <?xml version="1.0" encoding="UTF-8"?>
   2
   3 <page xmlns="http://lambdadelta.info/"
   4       description = "\lambda\delta home page"
   5       title = "\lambda\delta home page"
   6       head = "The Formal System λδ (\lambda\delta)"
   7 >
   8    <sitemap name="sitemap"/>
   9
  10    <section5 name="specifications">Computer-checked formal specifications</section5>
  11    <body>
  12       λδ is developed as a machine-checked digital specification.
  13       It comes in several versions listed in the next table,
  14       which includes the major milestones:
  15    </body>
  16    <table name="versions"/>
  17
  18 <!-- VERSION 2 =========================================================== -->
  19
  20    <subsection name="v2"><version2-icon/>λδ version 2 (in progress)</subsection>
  21    <body>
  22       The formal specification of λδ version 2
  23       is available in the following formats:
  24    </body>
  25
  26    <topitem name="source2">
  27       <body>
  28          <rlink to="download/lambdadelta_2.tar.gz">lambdadelta_2 for Matita 0.99.2</rlink>
  29          (revised <date date="2014-10"/>).
  30          Source scripts.
  31       </body>
  32       <body>
  33          <date date="Notice:"/> compile with the latest version of Matita from
  34          <link to="http://matita.cs.unibo.it/download.shtml">HELM Subversion repository</link>
  35          at path &lt;trunk/matita/&gt;.
  36       </body>
  37    </topitem>
  38
  39    <body>
  40       Informational pages on the parts of the specification:
  41       <rlink to="ground_2.html">Background</rlink>,
  42       <rlink to="basic_2.html">Core</rlink>,
  43       <rlink to="apps_2.html">Applications</rlink>.
  44    </body>
  45
  46 <!-- VERSION 1 =========================================================== -->
  47
  48    <subsection name="v1"><version1-icon/>λδ version 1 (dismissed)</subsection>
  49    <body>
  50       The formal specification of λδ version 1
  51       is available in the following formats:
  52    </body>
  53
  54    <topitem name="source1">
  55       <rlink to="download/lambdadelta_1.tar.gz">lambdadelta_1 for Coq 7.3.1</rlink>
  56       (revised <date date="2012-10"/>).
  57       Source scripts.
  58    </topitem>
  59
  60    <topitem name="static1">
  61       <rlink to="static/matita/lambdadelta/">lambdadelta_1 for Matita 0.5"</rlink>
  62       (revised <date date="2011-09"/>).
  63       Static HTML pages generated by the <link to="http://helm.cs.unibo.it/">HELM</link> rendering engine.
  64       <list><item>
  65          <rlink to="static/matita/lambdadelta/basic_1/pr3/pr3/pr3_confluence.con.html">
  66             Confluence of reduction</rlink>
  67          (Church-Rosser property).
  68       </item><item>
  69          <rlink to="static/matita/lambdadelta/basic_1/ty3/props/ty3_correct.con.html">
  70             Correctness of types</rlink>.
  71       </item><item>
  72          <rlink to="static/matita/lambdadelta/basic_1/ty3/props/ty3_unique.con.html">
  73             Uniqueness of types up to conversion</rlink>.
  74       </item><item>
  75          <rlink to="static/matita/lambdadelta/basic_1/ty3/pr3/ty3_sred_pr3.con.html">
  76             Subject reduction of the type assignment</rlink>.
  77       </item><item>
  78          <rlink to="static/matita/lambdadelta/basic_1/ty3/arity_props/ty3_sn3.con.html">
  79             Strong normalization of the typed terms</rlink>.
  80       </item><item>
  81          <rlink to="static/matita/lambdadelta/basic_1/ty3/dec/ty3_inference.con.html">
  82             Decidability of the type inference problem</rlink>.
  83       </item></list>
  84    </topitem>
  85
  86    <topitem name="dynamic1">
  87       <link to="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/">
  88          lambdadelta_1 for Matita 0.5"</link>
  89       (revised <date date="2011-09"/>).
  90       <link to="http://helm.cs.unibo.it/">HELM</link> directory.
  91       <date date="Notice: the HELM rendering engine is offline."/>
  92    </topitem>
  93
  94    <footer/>
  95 </page>