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

1 files changed, 9 insertions, 0 deletions

diff --git a/doc/refman/RefMan-tac.tex b/doc/refman/RefMan-tac.tex
index 6dbdaedd4..01816a396 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}}