Quelle  style.sty

%% toc
\newcommand{\tocentry}[1]{\cleardoublepage\phantomsection\addcontentsline{toc}{chapter}{#1}
\@mkboth{\MakeUppercase{#1}}{\MakeUppercase{#1}}}

\setcounter{secnumdepth}{2} \setcounter{tocdepth}{2}

%% references
\newcommand{\partref}[1]{part~\ref{#1}}
\newcommand{\secref}[1]{\S\ref{#1}}
\newcommand{\chref}[1]{chapter~\ref{#1}}
\newcommand{\Chref}[1]{Chapter~\ref{#1}}
\newcommand{\appref}[1]{appendix~\ref{#1}}
\newcommand{\Appref}[1]{Appendix~\ref{#1}}
\newcommand{\figref}[1]{figure~\ref{#1}}
\newcommand{\Figref}[1]{Figure~\ref{#1}}

%% Isar
\newcommand{\isasymBBAR}{{\,\newdimen{\tmpheight}\settoheight\tmpheight{\isacharbar}\rule{1pt}{\tmpheight}\,}}
\renewcommand{\isacommand}[1]{\isakeyword{\isadigitreset#1}}
\newcommand{\isasymdoublequote}{\texttt{\upshape"}}

%% ML
\newenvironment{mldecls}{\par\noindent\begingroup\def\isanewline{\\}\begin{tabular}{ll}}{\end{tabular}\medskip\endgroup}

\renewcommand{\isatagML}{\begingroup\isabellestyle{default}\isastyle\isadigitreset}
\renewcommand{\endisatagML}{\endgroup}

%% math
\newcommand{\isasymstrut}{\isamath{\mathstrut}}
\newcommand{\isasymvartheta}{\isamath{\,\theta}}
\newcommand{\isactrlvec}[1]{\emph{$\overline{#1}$}}
\renewcommand{\isadigit}[1]{\isamath{#1}}

%% global style options
\pagestyle{headings}
\sloppy

\parindent 0pt\parskip 0.5ex

\isabellestyle{literalunderscore}

\railtermfont{\isabellestyle{tt}}
\railnontermfont{\isabellestyle{literalunderscore}}
\railnamefont{\isabellestyle{literalunderscore}}