for s being State of SCM+FSA
for p being Instruction-Sequence of SCM+FSA
for k being Nat
for a being read-write Int-Location
for J being good really-closed MacroInstruction of SCM+FSA st not J destroys a & s . a = k & ( ProperTimesBody a,J,s,p or J is parahalting ) holds
DataPart (IExec ((Times (a,J)),p,s)) = DataPart ((StepTimes (a,J,p,s)) . k)