identify: more informative id in Toplevel.debug mode;
interactive state transformations: dispose descendants *before* running next command, bypass for control commands;
editor model: actually run affected commands;
misc tuning;
\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|)}