Question

State whether the following statement is true or false?

$A=\{x:xϵNandx=4\}$ is a Singleton Set

• A. True
• B. False

Answer 1

The correct option is A True

We have to state whether the statement "$A=\{x|x\in Nandx=4\}$ is a singleton set", is true or not.
Given $A=\{x|x\in Nandx=4\}$
$A=\left\{4\right\}$.
Since $A$ contains a single element it is a singleton set
Therefore $A$ is a singleton set.
Hence the given statement is true.