helm/www/matita/docs/manual-0.5.9/tac_andelim.html

   1 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
   2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>we have</title><link rel="stylesheet" type="text/css" href="docbook.css" /><meta name="generator" content="DocBook XSL Stylesheets V1.78.1" /><link rel="home" href="index.html" title="Matita V0.5.9 User Manual (rev. 0.5.9 )" /><link rel="up" href="sec_declarative_tactics.html" title="Chapter 8. Declarative Tactics" /><link rel="prev" href="tac_weneedtoprove.html" title="we need to prove" /><link rel="next" href="tac_weproceedbycases.html" title="we proceed by cases on" /></head><body><a xmlns="" href="../../../"><div class="matita_logo"><img src="figures/matita.png" alt="Tiny Matita logo" /><span>Matita Home</span></div></a><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">we have</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="tac_weneedtoprove.html">Prev</a> </td><th width="60%" align="center">Chapter 8. Declarative Tactics</th><td width="20%" align="right"> <a accesskey="n" href="tac_weproceedbycases.html">Next</a></td></tr></table><hr /></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="tac_andelim"></a>we have</h2></div></div></div><p><strong class="userinput"><code>justification we have t1 (id1) and t2 (id2)</code></strong>
   3     </p><p>
   4       </p><div class="variablelist"><dl class="variablelist"><dt><span class="term">Synopsis:</span></dt><dd><p><span class="emphasis"><em><a class="link" href="tacticargs.html#grammar.justification">justification</a></em></span> <span class="bold"><strong>we have</strong></span> <span class="emphasis"><em><a class="link" href="sec_terms.html#grammar.term">term</a></em></span>
   5                     <span class="bold"><strong>( </strong></span> <span class="emphasis"><em><a class="link" href="sec_terms.html#grammar.id">id</a></em></span> <span class="bold"><strong> ) and </strong></span> <span class="emphasis"><em><a class="link" href="sec_terms.html#grammar.term">term</a></em></span>
   6                       <span class="bold"><strong> ( </strong></span> <span class="emphasis"><em><a class="link" href="sec_terms.html#grammar.id">id</a></em></span> <span class="bold"><strong>)</strong></span></p></dd><dt><span class="term">Pre-condition:</span></dt><dd><p></p></dd><dt><span class="term">Action:</span></dt><dd><p>It derives <span class="command"><strong>t1∧t2</strong></span> using the
   7         <span class="command"><strong>justification</strong></span> then it introduces in the context
   8         <span class="command"><strong>t1</strong></span>   labelled with <span class="command"><strong>id1</strong></span> and
   9         <span class="command"><strong>t2</strong></span>   labelled with <span class="command"><strong>id2</strong></span>.
  10       </p></dd><dt><span class="term">New sequent to prove:</span></dt><dd><p>None.</p></dd></dl></div><p>
  11     </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="tac_weneedtoprove.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sec_declarative_tactics.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="tac_weproceedbycases.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">we need to prove </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> we proceed by cases on</td></tr></table></div></body></html>