2
i–@‚»‚Ì
3
n
˜_—‰‰ŽZ
u
NOT(
˜_—”Û’è
)
F
not 0 = 1,
not 1 = 0
u
OR(
˜_—˜a
)
F
0 or 0 = 0,
0 or 1= 1
F
1 or 0 = 1,
1 or 1 = 1