Элементы дискретной математики. Часть I - 132 стр.

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k
S
1
S
p
2
k
k
2
2
(P
k
)
x
1
,x
2
k
I
2
1
(x
1
,x
2
)
I
2
2
(x
1
,x
2
)
S [S]
x
1
,x
2
[S]
x
1
,x
2
= S
j 1 j p
S
j
= S
j
,
S
j
S
j
K
1
K
m
K P
k
K ⇐⇒ K ⊆ K
1
& K ⊆ K
2
& ... & K ⊆ K
m
.
K P
k
t K K
t
i K
t
= S
i
K
t
= S
i
K
t
S
i
I
2
1
I
2
2
[S
i
]
x
1
,x
2
= S
i
(S
i
)
x
1
,x
2
= S
i
.
S
i
=(P
k
)
x
1
,x
2
(K
t
)
x
1
,x
2
=(S
i
)
x
1
,x
2
=(P
k
)
x
1
,x
2
.
K
t
[K] K
t
=(P
k
).
K
K
K
1
K
m
[K] = P
k
V
k
(x
1
,x
2
)
[K] S =[K ∪{I
2
1
(x
1
,x
2
),I
2
2
(x
1
,x
2
)}]
V
k
(x
1
,x
2
) ∈ S
T =(S)
x
1
,x
2
T I
2
1
(x
1
,x
2
) I
2
2
(x
1
,x
2
)