  The MUX implementation of ternary half adders and full adders using
predecessor and successor functions lead to the most efficient efficient
implementation using the smallest transistor count. These designs are compared
with the binary implementation of the corresponding half adders and full adders
using the MUX technique or the typical complementary CMOS circuit style. The
transistor count ratio between ternary and binary implementations is always
greater than the information ratio ($log_2(3)/log_2(2)$ = 1.585) between
ternary and binary wires.
