From 93b74b4be215bd08ca7a123505177d6ec8ac7b4c Mon Sep 17 00:00:00 2001
From: letouzey
Date: Thu, 8 Oct 2009 13:39:01 +0000
Subject: Init/Tactics.v: tactic with nicer name 'exfalso' for 'elimtype False'

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12380 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 doc/refman/RefMan-tac.tex | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'doc')

diff --git a/doc/refman/RefMan-tac.tex b/doc/refman/RefMan-tac.tex
index 6dbdaedd43..01816a3960 100644
--- a/doc/refman/RefMan-tac.tex
+++ b/doc/refman/RefMan-tac.tex
@@ -1115,6 +1115,15 @@ the following way:
 \item  {\tt H: A $\vd$ $\neg$B} \ becomes \ {\tt H: B $\vd$ $\neg$A}
 \end{itemize}
 
+\subsection{\tt exfalso}
+\label{exfalso}
+\tacindex{exfalso}
+
+This tactic implements the ``ex falso quodlibet'' logical principle:
+an elimination of {\tt False} is performed on the current goal, and the
+user is then required to prove that {\tt False} is indeed provable in
+the current context. This tactic is a macro for {\tt elimtype False}.
+
 \section{Conversion tactics
 \index{Conversion tactics}
 \label{Conversion-tactics}}
-- 
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