1

2

3

i1

i2

i3

r

i4

i5

R R1

R2

(R1, R)

(R2, R)(R1, R2)

B B

C N

n m

N = IMAGE(F, C)

IMAGE(F, 1)

a b c | f

0 0 0 | 0

0 0 1 | 0

0 1 0 | 0

0 1 1 | 1

1 0 0 | 0

1 0 1 | 1

1 1 0 | 1

1 1 1 | 1

a’b’c’ ab’c’

abc’

abca’bc

ab’ca’b’c

a’bc’

a

b

c

f = a’bc + ab’c + abc’ + abcf = ab + bc + ac

abc

1

1 11

f

f(a=1)f(a=0)

f(a=0, b=0) f(a=0, b=1) f(a=1, b=0) f(a=1, b=1)

a=0 a=1

b=1 b=0 b=1b=0