An empty set is a set with no elements, it is denoted by $\{\}$ or more commonly referred to by the symbol $\boxed \emptyset$.
The empty set has no elements so no matter what denotes, .
Although, an empty set can be an element of another set, or .
An empty set is a set with no elements, it is denoted by $\{\}$ or more commonly referred to by the symbol $\boxed \emptyset$.
The empty set has no elements so no matter what denotes, .
Although, an empty set can be an element of another set, or .