reserve i,j,k for Nat;
reserve I,J,K for Element of Segm 9,
  a,a1,a2 for Nat,
  b,b1,b2,c,c1 for Element of SCM-Data-Loc;
reserve T for InsType of SCM-Instr,
        I for Element of SCM-Instr;
reserve a,b,c for Data-Location,
  loc for Nat,
  I for Instruction of SCM;
reserve s for State of SCM;
reserve Y,K,T for Element of Segm 9,
  a1,a2,a3 for Nat,
  b1,b2,c1,c2,
  c3 for Element of SCM-Data-Loc;
reserve i,j,k for Nat;

theorem Th27:
  Data-Locations SCM = SCM-Data-Loc
proof
  SCM-Data-Loc misses {NAT} by AMI_2:20,ZFMISC_1:50;
  then
A1: SCM-Data-Loc misses {NAT};
  thus Data-Locations SCM = {NAT} \/ SCM-Data-Loc \ ({NAT}) by AMI_2:22
,SUBSET_1:def 8
    .= SCM-Data-Loc \/ ({NAT}) \ ({NAT})
    .= SCM-Data-Loc \ ({NAT}) by XBOOLE_1:40
    .= SCM-Data-Loc by A1,XBOOLE_1:83;
end;
