theorem Th15: :: SCPINVAR:15
for P being Instruction-Sequence of SCMPDS
for s being State of SCMPDS
for I being Program of SCMPDS
for a, b being Int_position
for i being Integer st s . (DataLoc ((s . a),i)) = 0 holds
(IExec ((while<>0 (a,i,I)),P,(Initialize s))) . b = s . b