The
resulting switching functions generally will only be partially specified;
some combinations donŐt occur.
u
v w x f1 f2
0 0
0 0 0 0
0 0 0 1 0 1
0 0 1 0 1 0
0 0 1 1 ? ?
0 1 0 0 0 1
0 1 0 1 1 0
0 1
1 0 0 0
0 1 1 1 ? ?
1 0 0 0 1 0
1 0 0 1 0 0
1 0 1 0 0 1
1 0 1 1 ? ?
1 1
0 0 ? ?
1 1 0 1 ? ?
1 1 1 0 ? ?
1 1 1 1 ? ?
f2
f1
