For problem 14, the question says that we need to reserve a code for when
(i2,i1,i0) = (0,0,0). Does that mean we can't use a control output V like in
the book (pg 129 and 131 4th edition) that is 0 if and only if all inputs
are zero?

Thanks.

-- 
Jared Michael Jenkins
Northwestern University
McCormick School of Engineering and Applied Science
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