+ {\begin{list}{{\itshape\ \protect\casename} \arabic{casectr}.}{%
+ \setlength{\leftmargin}{\labelwidth}
+ \addtolength{\leftmargin}{\parskip}
+ \setlength{\itemindent}{\listparindent}
+ \setlength{\itemsep}{\medskipamount}
+ \setlength{\topsep}{\itemsep}}
+ \setcounter{casectr}{0}
+ \usecounter{casectr}}
+ {\end{list}}