<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">\makeatletter
\renewenvironment{theindex}
 {\pagestyle{plain}\parindent\z@
  \parskip\z@ \@plus .3\p@\relax
  \let\item\@idxitem}
 {\thispagestyle{plain}}
\makeatother
\begin{multicols}{3}[\chapter*{Index}\addcontentsline{toc}{chapter}{Index}]
  \printindex
\end{multicols}
</pre></body></html>