Goal:
    a : byte  b : byte  e : NoConfusion_byte a b
  ============================
   (noConfusion_byte_obligation_2 a b (noConfusion_byte_obligation_1 a b e) =
    e)


DEBUG:Going to execute:
intros; CoreTactics.destruct_all_rec_calls; simpl in *;
            try progress (CoreTactics.reverse; simplify_equalities)