Page 238

Location: Chapter 25, solution to Problem 2

Solution given

\Delta = W(DC\circledast\delta)

Additional solution

\Delta '=S\circledast\delta

Short explanation

The second solution performs the duty of a Normalizer bird,

\Delta\,\overline{n}=\circledast \overline{n} (\delta\,\overline{n})\;,

just as the first one does.