From d47db577e2684f354819be7b78e1ad7191987734 Mon Sep 17 00:00:00 2001
From: jforest
Date: Mon, 12 Jun 2006 16:54:44 +0000
Subject: Updating documentation of replace and correcting a typo in error
 message of replace.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@8950 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 doc/refman/RefMan-tac.tex | 20 +++++++++++++++-----
 tactics/equality.ml       |  2 +-
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/doc/refman/RefMan-tac.tex b/doc/refman/RefMan-tac.tex
index 4946be8f22..0c60a4ea73 100644
--- a/doc/refman/RefMan-tac.tex
+++ b/doc/refman/RefMan-tac.tex
@@ -1540,17 +1540,27 @@ symmetric form occurs.  It is equivalent to {\tt cut
 \term$_2$=\term$_1$; [intro H{\sl n}; rewrite <- H{\sl n}; clear H{\sl
 n}| assumption || symmetry; try assumption]}.
 
+\begin{ErrMsgs}
+\item \errindex{terms do not have convertible types}
+\end{ErrMsgs}
+
 \begin{Variants}
   
 \item {\tt replace {\term$_1$} with {\term$_2$} in \ident}\\
   This replaces {\term$_1$} with {\term$_2$} in the hypothesis named
   {\ident}, and generates the subgoal {\term$_2$}{\tt =}{\term$_1$}. 
 
-  \begin{ErrMsgs}
-  \item \errindex{No such hypothesis} : {\ident}
-  \item \errindex{Nothing to rewrite in {\ident}}
-  \end{ErrMsgs}
-
+%   \begin{ErrMsgs}
+%   \item \errindex{No such hypothesis} : {\ident}
+%   \item \errindex{Nothing to rewrite in {\ident}}
+%   \end{ErrMsgs}
+
+\item {\tt replace {\term$_1$} with  {\term$_2$} by \tac} This acts as
+  {\tt  replace {\term$_1$}  with {\term$_2$}}  but try  to  solve the
+  generated subgoal {\tt \term$_2$=\term$_1$} using {\tt \tac}.
+\item {\tt replace {\term$_1$} with  {\term$_2$} in \ident by \tac} This acts as
+  {\tt  replace {\term$_1$}  with {\term$_2$} in \ident}  but try  to  solve the
+  generated subgoal {\tt \term$_2$=\term$_1$} using {\tt \tac}.
 \end{Variants}
 
 \subsection{\tt reflexivity
diff --git a/tactics/equality.ml b/tactics/equality.ml
index ea7967bb1d..f51751359e 100644
--- a/tactics/equality.ml
+++ b/tactics/equality.ml
@@ -201,7 +201,7 @@ let abstract_replace clause c2 c1 unsafe tac gl =
 	 ]
       ] gl
   else
-    error "terms does not have convertible types"
+    error "terms do not have convertible types"
 
 
 let replace c2 c1 gl = abstract_replace None c2 c1 false tclIDTAC gl
-- 
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