reserve x,y,z for set;
reserve I,J,K for Element of Segm 9,
  i,a,a1,a2 for Nat,
  b,b1,b2,c,c1 for Element of SCM-Data-Loc;
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;

theorem Th10:
  for l being Element of SCM-Instr holds InsCode l <= 8
proof
  let l be Element of SCM-Instr;
   InsCode l = 0 or InsCode l = 1 or InsCode l = 2 or InsCode l = 3 or
   InsCode l = 4 or InsCode l = 5 or InsCode l = 6 or InsCode l = 7 or
   InsCode l = 8 by Th9;
 hence thesis;
end;
