more direct use of latex tools: avoid diversion into "isabelle latex -o pdf" and its confusion of ISABELLE_PDFLATEX vs. ISABELLE_LUALATEX;
clarified ISABELLE_MAKEINDEX options;
\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|)}