helm/www/lambdadelta/implementation.html

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   3 <html xmlns="http://www.w3.org/1999/xhtml" xmlns:ld="http://lambdadelta.info/" dir="ltr" lang="en-us"><head><meta http-equiv="Content-Language" content="en-us"/><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/><meta http-equiv="Content-Style-Type" content="text/css"/><meta name="author" content="Ferruccio Guidi"/><meta name="description" content="\lambda\delta home page"/><title>\lambda\delta home page</title><link rel="stylesheet" type="text/css" href="http://lambdadelta.info/css/ld_web.css"/><link rel="stylesheet" type="text/css" href="http://lambdadelta.info/css/lddl.css"/><link rel="stylesheet" type="text/css" href="http://lambdadelta.info/css/xhtbl.css"/><link rel="shortcut icon" href="http://lambdadelta.info/images/crux_16.ico"/></head><body lang="en-US"><div class="spacer"><a href="http://lambdadelta.info/"><img class="icon32" alt="[\lambda\delta home]" title="\lambda\delta home" src="http://lambdadelta.info/images/crux_32.png"/></a></div><div class="head1">The Formal Systems of the λδ (\lambda\delta) Family</div><div class="spacer"><img class="rule" alt="[Spacer]" title="\lambda\delta rainbow rule" src="http://lambdadelta.info/images/rainbow.png"/></div><div class="spacer"><br/></div><div class="text"><table cellpadding="4" cellspacing="0"><tbody><tr><td class="snns capitalize italic sky"><a href="http://lambdadelta.info/home.html">home</a></td><td class="snns capitalize italic magenta"><a href="http://lambdadelta.info/news.html">news</a></td><td class="snns capitalize italic white"><a href="http://lambdadelta.info/specification.html">specification</a></td><td class="snnn capitalize italic white"><br/></td><td class="snnn capitalize italic white"><br/></td><td class="snns capitalize italic orange"><a href="http://lambdadelta.info/documentation.html">documentation</a></td><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/home.html#foreword">foreword</a></td><td class="snns capitalize magenta"><a href="http://lambdadelta.info/news.html#milestones">milestones</a></td><td class="snns capitalize white"><a href="http://lambdadelta.info/specification.html#v2">version 2</a></td><td class="snnn capitalize white">(<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="snnn capitalize white"><br/></td><td class="snns capitalize orange"><a href="http://lambdadelta.info/documentation.html#v2">version 2</a></td><td class="snns capitalize green"><a href="http://lambdadelta.info/implementation.html#helena">helena</a></td><td class="ssnn capitalize green"><a href="http://lambdadelta.info/osn/">Open Symbolic Notation (OSN)</a></td></tr><tr><td class="snss capitalize sky"><a href="http://lambdadelta.info/home.html#citations">citations</a></td><td class="snss capitalize magenta"><a href="http://lambdadelta.info/news.html#visibility">visibility</a></td><td class="snss capitalize white"><a href="http://lambdadelta.info/specification.html#v1">version 1</a></td><td class="snsn capitalize white">(<a href="http://lambdadelta.info/ground_1.html">background</a> - <a href="http://lambdadelta.info/basic_1.html">core</a>)</td><td class="snsn capitalize white">(<a href="http://lambdadelta.info/static/matita/lambdadelta/">static HELM directory</a>)</td><td class="snss capitalize orange"><a href="http://lambdadelta.info/documentation.html#v1">version 1</a></td><td class="snss capitalize green"><a href="http://lambdadelta.info/implementation.html#lddl">library</a></td><td class="sssn capitalize green">(<a href="http://lambdadelta.info/static/lddl/">static LDDL directory</a>)</td></tr></tbody></table></div><div class="head2dx" id="tools">Tools <img class="icon37" alt="[butterfly]" title="\lambda\delta butterfly" src="http://lambdadelta.info/images/b5.png"/></div><div class="head3sn" id="osn"><a href="http://lambdadelta.info/osn/"><img class="w3c" alt="[Open Symbolic Notation logo]" title="OSN: Open Symbolic Notation" src="http://lambdadelta.info/images/osn_label.png"/></a> Open Symbolic Notation</div><div class="text">
   4       Open Symbolic Notation, abbreviated OSN,
   5       is an easy and flexible data-interchange text format
   6       intended for the lightweight representation of
   7       generic abstract syntax trees in the domain of formal languages.
   8       Additional information is available at <a href="http://lambdadelta.info/osn/">OSN web site</a>.
   9    </div><div class="head3sn" id="helena"><img class="icon32" alt="[Helena logo]" title="Helena" src="http://lambdadelta.info/images/helena_32.png"/> Helena</div><div class="text">
  10       Helena is a processor for the systems of the λδ family,
  11       implemented in <a href="http://caml.inria.fr/">Caml</a>
  12       as a part of the <a href="http://helm.cs.unibo.it/">HELM</a> software,
  13       meant for testing both their stable and unstable features.
  14    </div><div class="text">
  15       The processor source code is available in the directory
  16       <a href="http://helm.cs.unibo.it/websvn/listing.php?repname=helm&amp;path=%2Ftrunk%2Fhelm%2Fsoftware%2Fhelena%2F&amp;rev=0&amp;sc=0">/trunk/helm/software/helena/</a>
  17       of the <a href="http://helm.cs.unibo.it/software/index.html">HELM Svn repository</a>.
  18       The Svn revisions containing the stable versions of Helena are indicated next.
  19    </div><ul id="v3"><li><span class="emph gamma">Version 0.8.3 (2015-12).</span>
  20       Supports exportation to λProlog
  21       (two formats for ELPI,
  22       and two formats for <a href="http://teyjus.cs.umn.edu/">Teyjus</a>).
  23       Employs optimized conditional compilation through
  24       <a href="http://camlp5.gforge.inria.fr/">camlp5</a> code preprocessor (pa_macro)
  25       to reduce a performance loss, which is expected to disappear
  26       by employing a different code preprocessor.
  27       Overall validation speed of the "Grundlagen der Analysis" with respect to version 0.8.2:
  28       +3% with optimized compilation, +5% without optimized compilation.
  29       [Svn revision: 13108] (<a href="http://lambdadelta.info/download/helena_0.8.3.tar.gz">archived source code</a>).
  30       <ul><li class=""><span class="emph gamma">2015-06.</span>
  31          The corrected specification of Landau's "Grundlagen der Analysis"
  32          is successfully validated in a λProlog implementation of λδ version 3.
  33       </li></ul></li></ul><ul id="v2"><li><span class="emph gamma">Version 0.8.2 (2015-02).</span>
  34       Uses λδ version 3 with layer variables as core language.
  35       Supports exportation to Gallina
  36       (the specification language of <a href="http://coq.inria.fr/">Coq</a>),
  37       and to Grafite
  38       (the specification language of <a href="http://matita.cs.unibo.it/">Matita</a>).
  39       The overall validation speed of the "Grundlagen der Analysis"
  40       increases of 34% with respect to version 0.8.1.
  41       <a href="http://lambdadelta.info/documentation.html#ldJ3a">Documentation (J3a)</a>.
  42       [Svn revision: 13035] (<a href="http://lambdadelta.info/download/helena_0.8.2.tar.gz">archived source code</a>).
  43       <ul><li class="">
  44          The specification of Landau's "Grundlagen der Analysis"
  45          for <a href="http://coq.inria.fr/">Coq 8</a>:
  46          <a href="http://lambdadelta.info/download/grundlagen_2.v">grundlagen_2.v</a>
  47          (revised <span class="emph gamma">2015-02</span>).
  48       </li><li class="">
  49          The specification of Landau's "Grundlagen der Analysis"
  50          for <a href="http://matita.cs.unibo.it/">Matita 0.99.2</a>:
  51          <a href="http://lambdadelta.info/download/grundlagen_2.tar.bz2">grundlagen_2.tar.bz2</a>
  52          (revised <span class="emph gamma">2015-02</span>).
  53       </li><li class="">
  54          The corrected specification of Landau's "Grundlagen der Analysis":
  55          <a href="http://lambdadelta.info/download/grundlagen_2.aut">grundlagen_2.aut</a>
  56          (revised <span class="emph gamma">2014-12</span>).
  57       </li><li class=""><span class="emph gamma">2015-02.</span>
  58          The translated specification of Landau's "Grundlagen der Analysis"
  59          is successfully validated in CC by <a href="http://coq.inria.fr/">Coq 8.4.3</a>.
  60       </li><li class=""><span class="emph gamma">2014-12.</span>
  61          The corrected specification of Landau's "Grundlagen der Analysis"
  62          is successfully validated in λδ version 3.
  63       </li></ul></li></ul><ul id="v1"><li><span class="emph beta">Version 0.8.1 (2010-11).</span>
  64       Uses a subset of λδ version 4 as intermediate language.
  65       Features importation from ".hln" files containing λδ textual syntax.
  66       The overall validation speed of the "Grundlagen der Analysis"
  67       increases of 22% with respect to version 0.8.0.
  68       [Svn revision: 11032] (<a href="http://lambdadelta.info/download/helena_0.8.1.tar.gz">archived source code</a>).
  69       <ul><li class="">
  70          A <a href="http://www.jedsoft.org/jed/">Jed mode</a>
  71          for editing ".hln" files (containing λδ textual syntax):
  72          <a href="http://lambdadelta.info/download/helena.sl">helena.sl</a>
  73          (revised <span class="emph alpha">2010-11</span>).
  74       </li><li class=""><span class="emph beta">2009-12.</span>
  75          Helena appears in F. Wiedijk's
  76          <a href="http://www.cs.ru.nl/%7Efreek/digimath/index.html#helena">
  77             index of computer math systems</a>.
  78       </li></ul></li></ul><ul id="v0"><li><span class="emph beta">Version 0.8.0 (2009-09).</span>
  79       Supports λδ version 2 with naive implementation of impredicative sort inclusion.
  80       Features importation from <a href="http://www.win.tue.nl/automath/">Automath</a>
  81       and exportation to <a href="http://www.w3.org/XML/">XML</a>.
  82       <a href="http://lambdadelta.info/documentation.html#ldR2a">Documentation (R2a)</a>.
  83       [Svn revision: 10304] (<a href="http://lambdadelta.info/download/helena_0.8.0.tar.gz">archived source code</a>).
  84       <ul><li class="">
  85          A <a href="http://www.jedsoft.org/jed/">Jed mode</a>
  86          for editing ".aut" files
  87          (containing <a href="http://www.win.tue.nl/automath/">Automath</a> textual syntax):
  88          <a href="http://lambdadelta.info/download/automath.sl">automath.sl</a>
  89          (revised <span class="emph gamma">2008-07</span>).
  90       </li><li class=""><span class="emph beta">2009-09.</span>
  91          Jutting's specification of Landau's "Grundlagen der Analysis"
  92          enters λδ Digital Library.
  93       </li><li class=""><span class="emph beta">2009-06.</span>
  94          Jutting's specification of Landau's "Grundlagen der Analysis"
  95          is successfully processed, enabling sort inclusion.
  96       </li></ul></li></ul><div class="head3sn" id="lddl"><img class="icon32" alt="[\lambda\delta digital library logo]" title="LDDL: \lambda\delta digital library" src="http://lambdadelta.info/images/crux_32.png"/> λδ Digital Library (LDDL)</div><div class="text">
  97       The λδ Digital Library is part of <a href="http://helm.cs.unibo.it/">HELM</a>
  98       and contains resources expressed in the systems of the λδ family.
  99    </div><ul id="contents"><li><span class="emph alpha">Contents:</span>
 100       Landau's "Grundlagen der Analysis"
 101       (from Jutting's specification in  <a href="http://www.win.tue.nl/automath/">Automath</a>).
 102    </li></ul><ul id="access"><li><span class="emph alpha">Access:</span><a href="http://lambdadelta.info/static/lddl/">static pages</a> (updated <span class="emph gamma">2015-01</span>),
 103       <a href="http://lambdadelta.info/download/lddl.tar.bz2">data set</a> (updated <span class="emph gamma">2014-12</span>),
 104       <a href="http://lambdadelta.info/xml/">HELM server URL</a> (updated <span class="emph gamma">2014-12</span>).
 105    </li></ul><ul id="examples"><li><span class="emph alpha">Examples:</span><a href="http://lambdadelta.info/static/lddl/Environment/grundlagen_2/l/e/st/eq/landau/n/rt/rp/r/c/8283/t234.ld.html">
 106          Grundlagen's definition "t234"</a>
 107       in λδ version 4.
 108    </li></ul><div class="spacer"><img class="rule" alt="[Spacer]" title="\lambda\delta rainbow rule" src="http://lambdadelta.info/images/rainbow.png"/></div><div class="spacer"><br/></div><div class="spacer"><a href="http://validator.w3.org/check?uri=referer"><img class="w3c" alt="[Valid XHTML 1.1]" title="Valid XHTML 1.1" src="http://www.w3.org/Icons/valid-xhtml11-blue"/></a><a href="http://jigsaw.w3.org/css-validator/check/referer"><img class="w3c" alt="[Valid CSS level 2]" title="Valid CSS level 2" src="http://www.w3.org/Icons/valid-css2-blue"/></a><a href="http://www.w3.org/XML/"><img class="w3c" alt="[Generated from XML via XSL]" title="Generated from XML via XSL" src="http://lambdadelta.info/images/xml_xsl2.png"/></a><a href="http://www.w3.org/Graphics/PNG/"><img class="w3c" alt="[PNG used here]" title="PNG used here" src="http://lambdadelta.info/images/PNGnow2.png"/></a><a href="http://www.anybrowser.org/campaign/"><img class="w3c" alt="[Viewable with any browser]" title="Viewable with any browser" src="http://www.anybrowser.org/campaign/bvgraphics/abtfile.png"/></a></div><div class="spacer"><br/></div><div class="spacer">Last update: Thu, 09 Mar 2017 13:38:16 +0100</div></body></html>