for p being Instruction-Sequence of SCM+FSA
for s being State of SCM+FSA
for a being read-write Int-Location
for I being MacroInstruction of SCM+FSA
for k being Nat st ((StepWhile>0 (a,I,p,s)) . k) . a <= 0 holds
for n being Nat st k <= n holds
DataPart ((StepWhile>0 (a,I,p,s)) . n) = DataPart ((StepWhile>0 (a,I,p,s)) . k)