Question: Now, rather than our 4 -bit increment circuit that adds 1 to its input value, we want a circuit that subtracts 1 (i.e., z=x1 ).

Now, rather than our 4 -bit increment circuit that adds 1 to its input value, we want a circuit that subtracts 1 (i.e., z=x1 ). Draw a 4 -bit decrement circuit that does not use not ()gates

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