theorem WazneQLT7:
  QLT_Ex1 <> QLT_Ex2
  proof
A0: 0 in {0,1,2} & 1 in {0,1,2} by ENUMSET1:def 1; then
    QLT_Ex1.(0,1) = 0 by QLTEx1Def;
    hence thesis by A0,QLTEx2Def;
  end;
