Question

What are elements and cardinality?

Answer 1

Elements and cardinality

Elements: Elements are the items or members present in a set.

Cardinality: The cardinality of a set is the number of unique elements present in a set.

Example:

For a set $A=\left\{1,2,3,4,5\right\}$

The elements of the set are: $1,2,3,4$ and $5$

The cardinality of the set is: $n\left(A\right)=5$