A B º ØA Ú B.
: .
.
(): (a|b) º (a & b).
(): (a ¯ b), (a ¯ b) º (a Ú b).
( 2): (a Å b)º(a b).
:
A | B | A | B | A ¯ B | A Å B |
0 | 0 | |||
0 | 1 | |||
1 | 0 | |||
1 | 1 |
4.1.2
, .
{ xi | i Î I } . :
1. ();
2. a b , Øa, a x b, x , ;
3. , 1 2, .
, .. . (.. ).
.. .
, , . , : 1) ; 2) ; 3) {, &, Ú, , , |, ¯, Å } , > ~ . {}, : {} > {&, |, ¯} > {Ú} > {} > {, Å}.
, .
( ): ((((a&b)&c)Úd)((aÚb)&a)) º abc Ú d (aÚb)&a, , , . , : xÅyzuÚv&w¯x|y º ((xÅy)(z(uÚ(((v&w)¯x)|y)))).
14 (12.05.05)
4.1.3
() n x1, x2, , xn f:{0,1}n{0,1}, .. ,
(s1, , sn) f (s1, , sn)Î{0,1}.
|
|
, . . .
n 2n .
f (x1, x2, , xn) , 2n . .
xi, ( xi ), $ x1, x2, , xn , . xi ().
x1 | x2 | f1 | f2 |
4.1 . x1 , x2 .
, .
(.. ). , , (.. ). .
F(y1, y2, , ym), f1(x1, x2, , xn), , fm(x1, x2, , xn). fi F : (F| yi fi)(x1, x2, , xn) º F(f1(x1, x2, , xn), , fm(x1, x2, , xn)).
4.2 ( )