Lecture on Set

Major objective of this lecture is to present on Set.  Set is a collection of “things” (objects or numbers, etc). Each member is called an element of the set. There should be only one of each member (all members are unique). Example: The set of all even natural numbers less than 10 is {2, 4, 6, 8}. A set is a collection of objects that have something in common or follow a rule. The objects in the set are called its elements.