An empty set is a set with no elements. It is written with empty curly brackets as $\{\}$ or with the symbol $\varnothing .$ In a Venn Diagram, the empty set $A$ can be shown by not writing any elements in it.

The empty set can also be described in different ways, such as by verbal description, roster notation, and set-builder notation.

Verbal Description	All negative integers greater than $0.$
Roster Notation	$\{\}$ or $\varnothing$
Set-Builder Notation	$\{x|x\text{ is a negative integer greater than }0\}$

It is worth noting that since there are no negative integers greater than zero, this description corresponds to the empty set.