<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!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>contradiction</title><
meta name="generator" content="DocBook XSL Stylesheets V1.68.1" /><link rel="start" href="index.html" title="Matita V0.1.0 Manual (rev. 0)" /><link rel="up" href="sec_tactics.html" title="Chapter 6. Tactics" /><link rel="prev" href="tac_constructor.html" title="constructor nat" /><link rel="next" href="tac_cut.html" title="cut sterm [as id]" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">contradiction</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="tac_constructor.html">Prev</a> </td><th width="60%" align="center">Chapter 6. Tactics</th><td width="20%" align="right"> <a accesskey="n" href="tac_cut.html">Next</a></td></tr></table><hr /></div><div class="sect1" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="tac_contradiction"></a>contradiction</h2></div></div></div><p><strong class="userinput"><code>contradiction </code></strong></p><p>
+<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>contradiction</title><
link rel="stylesheet" href="docbook.css" type="text/css" /><meta name="generator" content="DocBook XSL Stylesheets V1.68.1" /><link rel="start" href="index.html" title="Matita V0.1.0 User Manual (rev. 1α)" /><link rel="up" href="sec_tactics.html" title="Chapter 6. Tactics" /><link rel="prev" href="tac_constructor.html" title="constructor nat" /><link rel="next" href="tac_cut.html" title="cut sterm [as id]" /></head><body><a xmlns="" href="../../"><div class="matita_logo"><img src="../../images/matita-tiny.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">contradiction</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="tac_constructor.html">Prev</a> </td><th width="60%" align="center">Chapter 6. Tactics</th><td width="20%" align="right"> <a accesskey="n" href="tac_cut.html">Next</a></td></tr></table><hr /></div><div class="sect1" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="tac_contradiction"></a>contradiction</h2></div></div></div><p><strong class="userinput"><code>contradiction </code></strong></p><p>
</p><div class="variablelist"><dl><dt><span class="term">Pre-conditions:</span></dt><dd><p>There must be in the current context an hypothesis of type
<span><strong class="command">False</strong></span>.</p></dd><dt><span class="term">Action:</span></dt><dd><p>It closes the current sequent by applying an hypothesis of
type <span><strong class="command">False</strong></span>.</p></dd><dt><span class="term">New sequents to prove:</span></dt><dd><p>None</p></dd></dl></div><p>
projects / helm.git / blobdiff