theorem Th53: :: SCMFSA9A:53

for s being State of SCM+FSA
for p being Instruction-Sequence of SCM+FSA
for a being read-write Int-Location
for J being good really-closed MacroInstruction of SCM+FSA st not J destroys a & ProperTimesBody a,J,s,p & 0 <= s . a holds
for k being Nat st k >= s . a holds
( ((StepTimes (a,J,p,s)) . k) . a = 0 & ((StepTimes (a,J,p,s)) . k) . (intloc 0) = 1 )