Cho tập A={1,2,3,4,5,6,7,8,9}, tập B={1,2,3,9,10}. Tập A - B là:

200

300

100

0

010001100

101110010 

111111011

010001101

8

5

7

4

50

100

0

150

108

1000000

17576

17576000

{(0,0),(1,1),(2,2),(3,3),(0,1),(0,2),(0,3)}

{(0,0),(1,1),(2,2),(3,3),(0,1),(1,0)}

{(0,0),(0,2),(2,0),(2,2),(2,3),(3,2),(3,3)}

{(0,0),(1,1),(1,3),(2,2),(2,3),(3,1),(3,2),(3,3)} 

4

8

10

12

R = {(a,a), (a,b), (b,c), (b,d), (c,c), (c,b), (d,a), (d,b)}

R = {(a,a), (a,c), (a,d), (c, b),(c,c), (d,b), (d,c)}

R = {(a,a), (a,b), (a,c), (b,b), (b,c), (c,c), (c,a), (d,d), (d,b)}

R = {(a,a), (a,c), (b,b), (b,d), (c,c), (c,a), (d,d), (d,c)}

{(11, 11), (12, 12), (13, 13), (14, 14), (11, 13), (13, 11), (11, 15), (15, 11), (12, 14), (14, 12)}

 {(11, 11), (12, 12), (13, 13), (14, 14), (15, 15), (11, 13), (11, 15), (13, 15), (12, 14)}

{(11, 13), (13, 11), (11, 15), (15, 11), (13, 15), (15, 13), (12, 14), (14, 12)}

{(11,11), (12, 12), (13, 13), (14, 14), (15, 15), (11,13), (13, 11), (11, 15), (15, 11), (13, 15), (15, 13), (12, 14), (14, 12)} 

\(p \wedge (p \vee q) \Leftrightarrow p;p \vee (p \wedge q) \Leftrightarrow p\)

\(p \vee 1 \Leftrightarrow 1;p \wedge 0 \Leftrightarrow 0 \)

\(p \vee 0 \Leftrightarrow p;p \wedge 1 \Leftrightarrow p \)

\(p \vee p \Leftrightarrow p;p \wedge p \Leftrightarrow p\)