more robust $ISABELLE_TMP_PREFIX on windows: avoid location within Cygwin root, i.e. inside the program directory (see also ff92d6edff2c and 1df53737c59b);
\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|)}