for p being Instruction-Sequence of SCM+FSA
for s being State of SCM+FSA
for Ig being good really-closed Program of SCM+FSA
for J being really-closed Program of SCM+FSA st Ig is_halting_on Initialized s,p & J is_halting_on IExec (Ig,p,s),p holds
IExec ((Ig ";" J),p,s) = (IExec (J,p,(IExec (Ig,p,s)))) +* (Start-At (((IC (IExec (J,p,(IExec (Ig,p,s))))) + (card Ig)),SCM+FSA))