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§ 1.


, , , , . , , , . . () .

. A Ҳ, - Ҳ ∩ = Ø, AU + Ҳ .

, 1 . Ҳ , ∩ = 0. , ! Ҳ, , +1. + 2, + 3, ..., + , Ҳ. ֲ Ѳ AU , 1 + .

: , , + .

.

. :

= {a 1 , 2 , ..., a n }, = {b 1 b 2 , ..., b n }.



= {( i , b i ) ا i = 1, 2, ..., ; j = 1, 2, ..., m} - Ҳ.

'


= {( 1 , b 1 ), ( 1 , b 2 ), ..., ( 1 , b m )}

= {( 2 , b 1 ), ( 2 , b 2 ), ..., ( 2 , b m )}

.......................................

= {( n , b 1 ), ( n , b 2 ), ..., ( n , b m )}


, 1 , 2 , ..., n , C = C < sub> l UC 2 U ... UC n . 1 , 2 , ..., n , Ҳ, Ҳ ' • .

: , , • .

1. 6 , 4 (. 298). 1 , . 6 • 4 = 24. br/> 

2. , (. 299). ?

: . -| ( - 24, - 6). : 24 + 6 = 30. , 30.

3. 5 , 3 4 . ? p> : - , - , - . : 15, 20 12. : 15 + 20 + 12 = 47. p> () .

k ij. n, , - 2 , ..., k-- k , Ѳ k ij n , = 2 • 2 • ... • k . p> § 2.


, n . , Ϫͪ .

, Ҳ, . Ҳ Ҳ ...


1 14 |





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