--- a/doc-src/IsarImplementation/Thy/document/Proof.tex Sat Feb 18 20:50:11 2012 +0100
+++ b/doc-src/IsarImplementation/Thy/document/Proof.tex Sat Feb 18 20:53:39 2012 +0100
@@ -485,7 +485,7 @@
\begin{isamarkuptext}%
The following example demonstrates how rules can be
derived by building up a context of assumptions first, and exporting
- some local fact afterwards. We refer to \hyperlink{theory.Pure}{\mbox{\isa{Pure}}} equality
+ some local fact afterwards. We refer to \isa{Pure} equality
here for testing purposes.%
\end{isamarkuptext}%
\isamarkuptrue%