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+ <meta name="author" content="Ferruccio Guidi" />
+ <meta name="description" content="lambdadelta version 2" />
+ <title>lambdadelta version 2</title>
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+ <div class="head1">cic:/matita/lambdadelta/ground_2/ (background for λδ version 2)</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="head2">Summary of the Specification</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="text">Here is a numerical acount of the specification's contents
+ and its timeline.
+ Nodes are counted according to the "intrinsinc complexity measure"
+ [F. Guidi: "Procedural Representation of CIC Proof Terms"
+ Journal of Automated Reasoning 44(1-2), Springer (February 2010),
+ pp. 53-78].
+ </div>
+ <div xmlns:ld="http://lambdadelta.info/" class="text">
+ <table cellpadding="4" cellspacing="0">
+ <tbody>
+ <tr>
+ <td class="snns component grey">category</td>
+ <td class="snns plane grey">objects</td>
+ <td class="snnn number grey">
+ <br />
+ </td>
+ <td class="snnn plane grey">
+ <br />
+ </td>
+ <td class="snnn number grey">
+ <br />
+ </td>
+ <td class="snnn plane grey">
+ <br />
+ </td>
+ <td class="ssnn number grey">
+ <br />
+ </td>
+ </tr>
+ <tr>
+ <td class="snns component cyan">sizes</td>
+ <td class="snns plane cyan">files</td>
+ <td class="snnn number cyan">24 </td>
+ <td class="snns plane cyan">characters</td>
+ <td class="snnn number cyan">62302</td>
+ <td class="snns plane cyan">nodes</td>
+ <td class="ssnn number cyan">38860</td>
+ </tr>
+ <tr>
+ <td class="snns component green">propositions</td>
+ <td class="snns plane green">theorems</td>
+ <td class="snnn number green">2</td>
+ <td class="snns plane green">lemmas</td>
+ <td class="snnn number green">88</td>
+ <td class="snns plane green">total</td>
+ <td class="ssnn number green">90</td>
+ </tr>
+ <tr>
+ <td class="snss component yellow">concepts</td>
+ <td class="snss plane yellow">declared</td>
+ <td class="snsn number yellow">40</td>
+ <td class="snss plane yellow">defined</td>
+ <td class="snsn number yellow">22</td>
+ <td class="snss plane yellow">total</td>
+ <td class="sssn number yellow">62</td>
+ </tr>
+ </tbody>
+ </table>
+ </div>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="date">2013 November 27.</span>
+ Natural numbers with infinity.
+ </li>
+ </ul>
+ <ul xmlns:ld="http://lambdadelta.info/">
+ <li>
+ <span class="date">2011 August 10.</span>
+ Specification starts.
+ </li>
+ </ul>
+
+ <div xmlns:ld="http://lambdadelta.info/" class="head2">Logical Structure of the Specification</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="text">The source files are grouped in planes
+ according to the following table.
+ Notation files covering the whole specification are provided.
+ The notation for the relations or functions introduced in each file
+ is shown in parentheses (? are placeholders).
+ </div>
+ <div xmlns:ld="http://lambdadelta.info/" class="text">
+ <table cellpadding="4" cellspacing="0">
+ <tbody>
+ <tr>
+ <td class="snns plane grey">plane</td>
+ <td class="snns file grey">files</td>
+ <td class="snnn file grey">
+ <br />
+ </td>
+ <td class="snnn file grey">
+ <br />
+ </td>
+ <td class="snnn file grey">
+ <br />
+ </td>
+ <td class="ssnn file grey">
+ <br />
+ </td>
+ </tr>
+ <tr>
+ <td class="snns plane yellow">natural numbers with infinity</td>
+ <td class="snns file yellow">ynat ( ∞ )</td>
+ <td class="snnn file yellow">ynat_pred ( ⫰? )</td>
+ <td class="snnn file yellow">ynat_succ ( ⫯? )</td>
+ <td class="snnn file yellow">ynat_le ( ?≤? )</td>
+ <td class="ssnn file yellow">ynat_lt ( ?<? )</td>
+ </tr>
+ <tr>
+ <td class="snns plane orange">extensions to the library</td>
+ <td class="snns file orange">arith.ma ( ?^? )</td>
+ <td class="snnn file orange">
+ <br />
+ </td>
+ <td class="snnn file orange">
+ <br />
+ </td>
+ <td class="snnn file orange">
+ <br />
+ </td>
+ <td class="ssnn file orange">
+ <br />
+ </td>
+ </tr>
+ <tr>
+ <td class="snss plane red">generated logical decomposables</td>
+ <td class="snss file red">xoa ( ∃∃ ) ( ∨∨ ) ( ∧∧ )</td>
+ <td class="snsn file red">xoa_props ( ⊥ ) ( ⊤ )</td>
+ <td class="snsn file red">
+ <br />
+ </td>
+ <td class="snsn file red">
+ <br />
+ </td>
+ <td class="sssn file red">
+ <br />
+ </td>
+ </tr>
+ </tbody>
+ </table>
+ </div>
+
+ <div xmlns:ld="http://lambdadelta.info/" class="head2">Physical Structure of the Specification</div>
+ <div xmlns:ld="http://lambdadelta.info/" class="text">The source files are grouped in directories,
+ one for each plane.
+ </div>
+ <div class="spacer">
+ <img class="rule" alt="[Spacer]" title="lambdadelta rainbow rule" src="http://lambdadelta.info/images/rainbow.png" />
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+ <div xmlns:ld="http://lambdadelta.info/" class="spacer">Last update: Thu, 28 Nov 2013 17:05:53 +0100</div>
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