theorem
 s1 | (SCM-Data-Loc \/ {IC SCMPDS})
  = s2 | (SCM-Data-Loc \/ {IC SCMPDS}) implies s1 =  s2
proof
  set Y = NAT;
  set X = SCM-Data-Loc \/ {IC SCMPDS};
A1:  s1 = s1|(Data-Locations SCMPDS \/ {IC SCMPDS})
   &  s2 = s2|(Data-Locations SCMPDS \/ {IC SCMPDS}) by MEMSTR_0:33;
  thus thesis by A1,SCMPDS_2:84;
end;
