--- a/Slides/document/root.tex	Tue May 25 00:24:41 2010 +0100
+++ b/Slides/document/root.tex	Wed May 26 15:34:54 2010 +0200
@@ -24,15 +24,26 @@
 \usepackage{graphicx} 
 \usepackage{xcolor} 
 
+% general math stuff
+\newcommand{\dn}{\stackrel{\mbox{\scriptsize def}}{=}}% for definitions
+\newcommand{\dnn}{\stackrel{\mbox{\Large def}}{=}}
+\renewcommand{\emptyset}{\varnothing}% nice round empty set
+\renewcommand{\Gamma}{\varGamma} 
+\DeclareRobustCommand{\flqq}{\mbox{\guillemotleft}}
+\DeclareRobustCommand{\frqq}{\mbox{\guillemotright}}
+\newcommand{\smath}[1]{\textcolor{blue}{\ensuremath{#1}}}
+\newcommand{\fresh}{\mathrel{\#}}
+\newcommand{\act}{{\raisebox{-0.5mm}{\Large$\boldsymbol{\cdot}$}}}% swapping action
+\newcommand{\swap}[2]{(#1\,#2)}% swapping operation
 
 
 
 % Isabelle configuration
 %%\urlstyle{rm}
-\isabellestyle{rm}
-\renewcommand{\isastyle}{\rm}%
-\renewcommand{\isastyleminor}{\rm}%
-\renewcommand{\isastylescript}{\footnotesize\rm\slshape}%
+\isabellestyle{it}
+\renewcommand{\isastyle}{\it}%
+\renewcommand{\isastyleminor}{\it}%
+\renewcommand{\isastylescript}{\footnotesize\it\slshape}%
 \renewcommand{\isatagproof}{}
 \renewcommand{\endisatagproof}{}
 \renewcommand{\isamarkupcmt}[1]{#1}
@@ -48,21 +59,11 @@
 \renewcommand{\isasymsharp}{\isamath{\#}}
 \renewcommand{\isasymdots}{\isamath{...}}
 \renewcommand{\isasymbullet}{\act}
+\renewcommand{\isasymequiv}{$\dn$}
 
 % mathpatir
 \mprset{sep=1em}
 
-% general math stuff
-\newcommand{\dn}{\stackrel{\mbox{\scriptsize def}}{=}}% for definitions
-\newcommand{\dnn}{\stackrel{\mbox{\Large def}}{=}}
-\renewcommand{\emptyset}{\varnothing}% nice round empty set
-\renewcommand{\Gamma}{\varGamma} 
-\DeclareRobustCommand{\flqq}{\mbox{\guillemotleft}}
-\DeclareRobustCommand{\frqq}{\mbox{\guillemotright}}
-\newcommand{\smath}[1]{\textcolor{blue}{\ensuremath{#1}}}
-\newcommand{\fresh}{\mathrel{\#}}
-\newcommand{\act}{{\raisebox{-0.5mm}{\Large$\boldsymbol{\cdot}$}}}% swapping action
-\newcommand{\swap}[2]{(#1\,#2)}% swapping operation
 
 % beamer stuff 
 \renewcommand{\slidecaption}{Salvador, 26.~August 2008}