Элементы дискретной математики. Часть I - 14 стр.

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&
(ε
1
,...,ε
n
)E
n
2
f (ε
1
,...,ε
n
)=1
x
ε
1
1
...x
ε
n
n
x
1
x
n
x
1
¯x
1
{¯x, , &}
n f k (1 k n)
f(x
1
,...,x
n
)=
(ε
1
,...,ε
k
)E
k
2
x
ε
1
1
& ...&x
ε
k
k
&
f(ε
1
,...,ε
k
,x
k+1
,...,x
n
).
k =1
f(x
1
,...,x
n
)=
¯x
1
&
f(0,x
2
,...,x
n
)
x
1
&
f(1,x
2
,...,x
n
)
.
Γ [Γ]
Γ [Γ]
Γ [Γ] = Γ Γ
Γ [Γ]
U W [U] [W ]
[[Γ]] = [Γ]