reserve I for Element of Segm 8,
  S for non empty 1-sorted,
  t for Element of S,
  x for set,
  k for Element of NAT;
 reserve R for Ring, T for InsType of SCM-Instr R;
reserve R for Ring,
  r for Element of R,
  a, b, c, d1, d2 for Data-Location of R,
  i1 for Nat;

theorem Th1:
  x is Data-Location of R iff x in Data-Locations SCM
    by Def1,AMI_2:def 16,AMI_3:27;
