theorem Th17: :: SCMISORT:24
for P being Instruction-Sequence of SCM+FSA
for s being State of SCM+FSA
for I being InitHalting good really-closed MacroInstruction of SCM+FSA
for b being Int-Location
for a being read-write Int-Location st s . a > 0 & while>0 (a,I) is InitHalting holds
(IExec ((while>0 (a,I)),P,s)) . b = (IExec ((while>0 (a,I)),P,(IExec (I,P,s)))) . b