-<html xmlns="http://www.w3.org/1999/xhtml" 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="[lambdadelta home]" title="lambdadelta home" src="http://lambdadelta.info/images/crux_32.png" />
- </a>
- </div>
- <div class="head1">The Formal System λδ (\lambda\delta)</div>
- <div class="spacer">
- <img class="rule" alt="[Spacer]" title="lambdadelta rainbow rule" src="http://lambdadelta.info/images/rainbow.png" />
- </div>
- <div xmlns:ld="http://lambdadelta.info/" class="spacer">
- <br />
- </div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
- <table cellpadding="4" cellspacing="0">
- <tbody>
- <tr>
- <td class="snns capitalize italic sky">
- <a href="http://lambdadelta.info/index.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 orange">
- <a href="http://lambdadelta.info/documentation.html">documentation</a>
- </td>
- <td class="snns capitalize italic green">
- <a href="http://lambdadelta.info/specification.html">specification</a>
- </td>
- <td class="snnn capitalize italic green">
- <br />
- </td>
- <td class="ssns capitalize italic green">
- <a href="http://lambdadelta.info/implementation.html">implementation</a>
- </td>
- </tr>
- <tr>
- <td class="snns capitalize sky">
- <a href="http://lambdadelta.info/index.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 orange">
- <a href="http://lambdadelta.info/documentation.html#v2">version 2</a>
- </td>
- <td class="snns capitalize green">
- <a href="http://lambdadelta.info/specification.html#v2">version 2</a>
- </td>
- <td class="snnn capitalize green">(<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="ssns capitalize green">
- <a href="http://lambdadelta.info/implementation.html#lddl">library</a>
- </td>
- </tr>
- <tr>
- <td class="snss capitalize sky">
- <a href="http://lambdadelta.info/index.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 orange">
- <a href="http://lambdadelta.info/documentation.html#v1">version 1</a>
- </td>
- <td class="snss capitalize green">
- <a href="http://lambdadelta.info/specification.html#v1">version 1</a>
- </td>
- <td class="snsn capitalize green">
- <br />
- </td>
- <td class="ssss capitalize green">
- <a href="http://lambdadelta.info/implementation.html#helena">helena</a>
- </td>
- </tr>
- </tbody>
- </table>
- </div>
-
- <div xmlns:ld="http://lambdadelta.info/" class="head2dx" id="specifications">Computer-checked formal specifications <img class="icon37" alt="[spacer]" title="lambdadelta butterfly" src="http://lambdadelta.info/images/b5.png" />
- </div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">
- λδ is developed as a machine-checked digital specification.
- It comes in several versions listed in the next table,
- which includes the major milestones.
- </div>
- <div xmlns:ld="http://lambdadelta.info/" class="text">