Q2. In each of the following, determine whether the statement is true or false. If it is true, prove it. If it is false, give an example.
(v) If x A and A
B , then x
B
The given statement is false,
Let x be 2
A = { 1,2,3}
B = { 4,5,6,7}
Here, 2 { 1,2,3} = x
A and { 1,2,3}
{ 4,5,6,7} = A
B
But, 2 { 4,5,6,7} implies x
B