\def\thesubsection{\thesection.\Alph{subsection}}

\renewenvironment{enumeratea}
{\bgroup\def\theenumi{\alph{enumi}}\def\labelenumi{\textup{\theenumi)}}\begin{enumerate}}
{\end{enumerate}\egroup}

\newcommand{\enum}[2]%
{\par\noindent\begin{minipage}{.13\textwidth}#1\end{minipage}
\hfill\begin{minipage}[t]{.85\textwidth}#2\end{minipage}\par}

\let\lhra\hto
\let\ssm=\smallsetminus
\let\wh=\widehat
\let\wt=\widetilde
\let\ol=\overline
\def\bu{{\scriptstyle\bullet}}
\def\restriction{|}
\def\shat{\smash{\hat{\phantom{\vrule height6pt width2pt}}}}
\def\sep{\,;\,}


\let\Bbb\mathbb
\def\bC{{\Bbb C}}
\def\bH{{\Bbb H}}
\def\bK{{\Bbb K}}
\def\bN{{\Bbb N}}
\def\bP{{\Bbb P}}
\def\bQ{{\Bbb Q}}
\def\bR{{\Bbb R}}
\def\bZ{{\Bbb Z}}



\def\ii{\mathrm{i}}
\def\reg{\mathrm{reg}}
\def\sing{\mathrm{sing}}
\def\Vect{\mathrm{Vect}}

\def\gm{\mathfrak{m}}
\def\gS{\mathfrak{S}}

\def\Aut{\mathop{\rm Aut}\nolimits}
\def\Im{\mathop{\rm Im}\nolimits}
\def\Ker{\mathop{\rm Ker}\nolimits}
\def\Coker{\mathop{\rm Coker}\nolimits}
\def\Id{\mathop{\rm Id}\nolimits}

\def\bibb#1\endbibb{{\hangindent=9.2mm\hangafter 1 #1\par}}

\newdimen\figmm
\figmm=0.694444mm
\long\def\InsertFig#1 #2 #3 #4\EndFig{\par
\hbox{\hskip #1\figmm$\vbox to #2\figmm{\vfil\special{" 
0.694444 dup scale
#3}}#4$}}
\long\def\LabelTeX#1 #2 #3\ELTX{\rlap{\kern#1\figmm\raise#2\figmm\hbox{#3}}}