removed slightly exotic symbol abbreviations for now -- achieves a coherent (unique) mapping;
(NB: in principle symbol abbreviations could well be ambigous);
\index{model checking example|(}%
\index{lfp@{\texttt{lfp}}!applications of|see{CTL}}
\input{CTL/document/Base.tex}
\input{CTL/document/PDL.tex}
\input{CTL/document/CTL.tex}
\index{model checking example|)}