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

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   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 (ongoing)</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          The scripts are grouped in directories, first by part, then by component.
  34       </body>
  35       <body>
  36          <date date="Notice:"/>
  37          the scripts are checked by the latest version of Matita from
  38          <link to="http://matita.cs.unibo.it/download.shtml">HELM Subversion repository</link>
  39          at path &lt;trunk/matita/&gt;.
  40       </body>
  41    </topitem>
  42
  43    <body>
  44       Informational pages on the parts of the specification:
  45       <rlink to="ground_2.html">Background</rlink>,
  46       <rlink to="basic_2.html">Core</rlink>,
  47       <rlink to="apps_2.html">Applications</rlink>.
  48    </body>
  49    <body>
  50       <date date="Notice on numerical acounts:"/>
  51       nodes are counted according to the "intrinsic complexity measure"
  52       [F. Guidi: "Procedural Representation of CIC Proof Terms"
  53       Journal of Automated Reasoning 44(1-2), Springer (February 2010), pp. 53-78].
  54    </body>
  55
  56 <!-- VERSION 1 =========================================================== -->
  57
  58    <subsection name="v1"><version1-icon/>λδ version 1 (dismissed)</subsection>
  59    <body>
  60       The formal specification of λδ version 1
  61       is available in the following formats:
  62    </body>
  63
  64    <topitem name="source1">
  65       <body>
  66          <rlink to="download/lambdadelta_1.tar.gz">lambdadelta_1 for Coq 7.3.1</rlink>
  67          (revised <date date="2012-10"/>).
  68          Source scripts.
  69       </body>
  70       <body>
  71          The scripts are grouped in directories, one for each part.
  72       </body>
  73    </topitem>
  74
  75    <topitem name="static1">
  76       <rlink to="static/matita/lambdadelta/">lambdadelta_1 for Matita 0.5</rlink>
  77       (revised <date date="2011-09"/>).
  78       Static HTML pages generated by the <link to="http://helm.cs.unibo.it/">HELM</link> rendering engine.
  79       <list><item>
  80          <rlink to="static/matita/lambdadelta/basic_1/pr3/pr3/pr3_confluence.con.html">
  81             Confluence of reduction</rlink>
  82          (Church-Rosser property).
  83       </item><item>
  84          <rlink to="static/matita/lambdadelta/basic_1/ty3/props/ty3_correct.con.html">
  85             Correctness of types</rlink>.
  86       </item><item>
  87          <rlink to="static/matita/lambdadelta/basic_1/ty3/props/ty3_unique.con.html">
  88             Uniqueness of types up to conversion</rlink>.
  89       </item><item>
  90          <rlink to="static/matita/lambdadelta/basic_1/ty3/pr3/ty3_sred_pr3.con.html">
  91             Subject reduction of the type assignment</rlink>.
  92       </item><item>
  93          <rlink to="static/matita/lambdadelta/basic_1/ty3/arity_props/ty3_sn3.con.html">
  94             Strong normalization of the typed terms</rlink>.
  95       </item><item>
  96          <rlink to="static/matita/lambdadelta/basic_1/ty3/dec/ty3_inference.con.html">
  97             Decidability of the type inference problem</rlink>.
  98       </item></list>
  99    </topitem>
 100
 101    <topitem name="dynamic1">
 102       <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/">
 103          lambdadelta_1 for Matita 0.5</link>
 104       (revised <date date="2011-09"/>).
 105       <link to="http://helm.cs.unibo.it/">HELM</link> directory.
 106       <date date="Notice: the HELM rendering engine is offline."/>
 107    </topitem>
 108
 109    <footer/>
 110 </page>