Элементы дискретной математики. Часть I - 148 стр.

UptoLike

k
f
m
(x
1
,...,x
m
)
f(x
1
,...,x
m
)=f
s
(t
1
(f
1
,...,f
m1
,f
m+1
,...,f
p
),...,t
s
(f
1
,...,f
m1
,f
m+1
,...,f
p
)
t
1
t
s
x
1
x
n
f
m
(x
1
,...,x
m
)
t
1
t
s
t
l
s 2
t
k
x
r
x
1
= x
2
= ... = x
r1
= x
r+1
= ... = x
m
=2,x
r
=1.
t
l
t
1
t
s
m = s
f
m
s>m
x
p
x
1
= ... = x
p1
= x
p+1
= ... = x
m
=2,x
p
=1
{f
2
,f
3
,...,f
n
,...}
K K
{f
2
,f
3
,...,f
n
,...}
K
k P
k
k 3
K = {f
2
,f
3
,...,f
n
,...}.