Homework 16, Due on Wednesday, April 30

Hand in your solution to Problem 9.18 in our textbook.

Also, the textbook claims that the solution given in Figure 9.15 can be replaced 
by a single D flip-flop, as shown in Figure 9.16.   It goes on to claim that 
the circuit in 9.15 is actually a (variation of) a D flip flop. Please  show this
by renaming the signals and verifying the truth table.