reserve x,a for Int_position,
  s for State of SCMPDS;

theorem Th2:
  for t being State of SCMPDS,i being Instruction of SCMPDS st
  InsCode i in {0,4,5,6,14} holds Initialize(t)=Initialize(Exec(i,t))
proof
  let t be State of SCMPDS,i be Instruction of SCMPDS;
  assume InsCode i in {0,4,5,6,14};
  then DataPart Exec(i,t) = DataPart t by SCMPDS_7:7;
  hence thesis by MEMSTR_0:80;
