, , 3 5, : 35, 53, 33 55. , 35 53 , . , , . .
, a b, , : (a;b). a () , b () .
(; b) (; d) , = b=d.
(; ) , = . , 33 55 (3; 3) (5; 5).
, .
={1,2,3}, ={3,5}. , , .
, : {(1; 3), (1; 5), (2; 3), (2; 5), (3;3), (3;5)}.
, , , . .
. , , .
´B. , :
A´B={(; ) | ÎA Î B}.
, :
) = {m, p}, B={e, f, k}; b) A = B={3, 5}.
. ) , , : ´ B = {(m; p); (m; f); (m; k); (p; e); (p; f);(p; k)}.
b) , : ´ = {(3; 3); (3; 5); (5; 3); (5; 5)}.
2.
1. ´B ´ , .
2. , , .
3. , .. , :
(AÈB) ´ = (A ´ ) È (B ´ ), (A \ B) ´ = (A ´ ) \ (B ´ ).
, : = {3; 4; 5}, = {5; 7}, = {7; 8}.
. : AÈB = {3; 4; 5;7}. (AÈB) ´ , : (AÈB) ´ = {(3; 7), (3; 8), (4; 7), (4; 8), (5; 7), (5; 8), (7; 7), (7; 8)}.
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(A ´ ) È (B ´ ), ´ ´ :
´ = {(3; 7), (3; 8), (4; 7), (4; 8), (5; 7), (5; 8)}
´ = {(5; 7), (5; 8), (7; 7), (7; 8)}.
:
(A ´ ) È (B ´ ) = {(3; 7), (3; 8), (4; 7), (4; 8), (5; 7), (5; 8), (7; 7), (7; 8)}.
, (AÈB) ´ (A ´ ) È (B ´ ) , , , (AÈB) ´ = (A ´ ) È (B ´ ).
, .
, .
={1; 2; 3} = {3; 5} , 1 2
(1,3) | (1,5) | |
(2,3) | (2,3) | |
(3,3) | (3,3) |
. 1
( ) , .
, .
A ´ , :
) = {1; 2; 3} = [3; 5];
) = [1; 3], = [3; 5];
) = R, = [3; 5];
) = R, =R.
) , 3 5, , A ´ , 1, 2, 3, [3; 5]. .
1 2 3
) . [1; 3], , , , , . , , , .
1 2
) , , .. , A ´ , , [3; 5]. .
y
) R´R . , , . , R´R , .
, , .. . , 367 , 10 .
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.
. , . , (3; 6; 7) 3, (, , , , , , , , , ) 10.
, n.
. 1, 2, , n n, 1, 2, , n n.
1, 2, , n : 1´ 2´ ´ n.
: 1= {2, 3}, 2= {3, 4, 5}, 3 = {6, 7}. 1´ 2 ´3.
1´ 2 ´3 3 , 1, 2, 3.
1´ 2 ´3 ={(2,3,6), (2,3,7), (2,4,6), (2,4,7), (2,5,6), (2,5,7), (3,3,6), (3,3,7),(3,4,6), (3,4,7), (3,4,7),(3,5,6), (3,5,7)}.