theorem Th28:
  for ins being Instruction of SCM+FSA st InsCode ins = 6 holds ex
  lb st ins = goto lb
proof
  let ins be Instruction of SCM+FSA;
  assume
A1: InsCode ins = 6;
  then reconsider I = ins as Instruction of SCM by Th8;
  consider La being Nat such that
A2: I = SCM-goto La by A1,AMI_5:13;
  take La;
  thus thesis by A2;
end;
