adjust generated Scala to make it work with scalac -old-syntax and -new-syntax, although the latter is not regularly tested;
\index{model checking example|(}%
\index{lfp@{\texttt{lfp}}!applications of|see{CTL}}
\input{Base.tex}
\input{PDL.tex}
\input{CTL.tex}
\index{model checking example|)}