matita/matita/help/C/command_unification_hint.html

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   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>unification hint</title><link rel="stylesheet" type="text/css" href="docbook.css" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="home" href="index.html" title="Matita V0.99.5 User Manual (rev. 0.99.5 )" /><link rel="up" href="sec_commands.html" title="Chapter 9. Other commands" /><link rel="prev" href="command_qed_minus.html" title="qed-" /><link rel="next" href="command_universe_constraints.html" title="universe constraint" /></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">unification hint</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="command_qed_minus.html">Prev</a> </td><th width="60%" align="center">Chapter 9. Other commands</th><td width="20%" align="right"> <a accesskey="n" href="command_universe_constraints.html">Next</a></td></tr></table><hr /></div><div class="sect1"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="command_unification_hint"></a>unification hint</h2></div></div></div><p><strong class="userinput"><code>unification hint n ≔ v1 : T1,… vi : Ti; h1 ≟ t1, …  hn ≟ tn ⊢ tl ≡ tr.</code></strong></p><p>
   3      </p><div class="variablelist"><dl class="variablelist"><dt><span class="term">Synopsis:</span></dt><dd><p>
   4                          <span class="bold"><strong>unification hint</strong></span>
   5                          <span class="emphasis"><em><a class="link" href="sec_terms.html#grammar.nat">nat</a></em></span>
   6                          <span class="bold"><strong>≔</strong></span>
   7                          [ <span class="emphasis"><em><a class="link" href="sec_terms.html#grammar.id">id</a></em></span> [ <span class="bold"><strong>:</strong></span> <span class="emphasis"><em><a class="link" href="sec_terms.html#grammar.term">term</a></em></span> ] ,.. ]
   8                          <span class="bold"><strong>;</strong></span>
   9                          [ <span class="emphasis"><em><a class="link" href="sec_terms.html#grammar.id">id</a></em></span> <span class="bold"><strong>≟</strong></span> <span class="emphasis"><em><a class="link" href="sec_terms.html#grammar.term">term</a></em></span> ,.. ]
  10                          <span class="bold"><strong>⊢</strong></span>
  11                          <span class="emphasis"><em><a class="link" href="sec_terms.html#grammar.term">term</a></em></span> <span class="bold"><strong>≡</strong></span> <span class="emphasis"><em><a class="link" href="sec_terms.html#grammar.term">term</a></em></span>
  12                  </p></dd><dt><span class="term">Action:</span></dt><dd><p>Declares the hint at precedence <span class="command"><strong>n</strong></span></p><p>The file <span class="command"><strong>hints_declaration.ma</strong></span> must be
  13                          included to declare hints with that syntax.</p><p>Unification hints are described in the paper
  14                          "Hints in unification" by
  15                          Asperti, Ricciotti, Sacerdoti and Tassi.
  16                  </p></dd></dl></div><p>
  17    </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="command_qed_minus.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sec_commands.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="command_universe_constraints.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">qed- </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> universe constraint</td></tr></table></div></body></html>