# HG changeset patch
# User wenzelm
# Date 1327871545 -3600
# Node ID 408e3acfdbb904c660858609eb55684e06563930
# Parent  aea65ff733b4068ec299ff81e92bc0f68a0f51ae
updated hint about asm_rl;

diff -r aea65ff733b4 -r 408e3acfdbb9 doc-src/IsarImplementation/Thy/Tactic.thy
--- a/doc-src/IsarImplementation/Thy/Tactic.thy	Sun Jan 29 22:00:10 2012 +0100
+++ b/doc-src/IsarImplementation/Thy/Tactic.thy	Sun Jan 29 22:12:25 2012 +0100
@@ -282,7 +282,11 @@
   premises.
 
   \item @{ML eresolve_tac}~@{text "thms i"} performs elim-resolution
-  with the given theorems, which should normally be elimination rules.
+  with the given theorems, which are normally be elimination rules.
+
+  Note that @{ML "eresolve_tac [asm_rl]"} is equivalent to @{ML
+  assume_tac}, which facilitates mixing of assumption steps with
+  genuine eliminations.
 
   \item @{ML dresolve_tac}~@{text "thms i"} performs
   destruct-resolution with the given theorems, which should normally
diff -r aea65ff733b4 -r 408e3acfdbb9 doc-src/IsarImplementation/Thy/document/Tactic.tex
--- a/doc-src/IsarImplementation/Thy/document/Tactic.tex	Sun Jan 29 22:00:10 2012 +0100
+++ b/doc-src/IsarImplementation/Thy/document/Tactic.tex	Sun Jan 29 22:12:25 2012 +0100
@@ -338,7 +338,10 @@
   premises.
 
   \item \verb|eresolve_tac|~\isa{thms\ i} performs elim-resolution
-  with the given theorems, which should normally be elimination rules.
+  with the given theorems, which are normally be elimination rules.
+
+  Note that \verb|eresolve_tac [asm_rl]| is equivalent to \verb|assume_tac|, which facilitates mixing of assumption steps with
+  genuine eliminations.
 
   \item \verb|dresolve_tac|~\isa{thms\ i} performs
   destruct-resolution with the given theorems, which should normally
diff -r aea65ff733b4 -r 408e3acfdbb9 doc-src/Ref/tactic.tex
--- a/doc-src/Ref/tactic.tex	Sun Jan 29 22:00:10 2012 +0100
+++ b/doc-src/Ref/tactic.tex	Sun Jan 29 22:12:25 2012 +0100
@@ -66,23 +66,6 @@
   (see Chapter~\ref{chap:simplification}).
 \end{warn}
 
-\subsection{Theorems useful with tactics}
-\index{theorems!of pure theory}
-\begin{ttbox} 
-asm_rl: thm 
-\end{ttbox}
-\begin{ttdescription}
-\item[\tdx{asm_rl}] 
-is $\psi\Imp\psi$.  Under elim-resolution it does proof by assumption, and
-\hbox{\tt eresolve_tac (asm_rl::{\it thms}) {\it i}} is equivalent to
-\begin{ttbox} 
-assume_tac {\it i}  ORELSE  eresolve_tac {\it thms} {\it i}
-\end{ttbox}
-
-\end{ttdescription}
-
-
-\section{Obscure tactics}
 
 \subsection{Composition: resolution without lifting}
 \index{tactics!for composition}