Answer to Question #241418 in Discrete Mathematics for SIMRANJIt Kaur

Question

What is sets??

Answer 1

A set is an unordered collection of distinct objects, called elements or members of the set. A set is said to contain its elements. We write $a\in A$ to denote that $a$ is an element of the set $A.$

The notation $a ∉ A$ denotes that $a$ is not an element of the set $A.$