Write the following sets in the set-builder form :
${\rm{\{ 2,4,8,16,32\} }}$
The smallest set $A$ such that $A \cup \{1, 2\} = \{1, 2, 3, 5, 9\}$ is
Write the following intervals in set-builder form :
$\left( { - 3,0} \right)$
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.
If $x \in A$ and $A \in B,$ then $x \in B$
Write the following intervals in set-builder form :
$\left[ { - 23,5} \right)$