Explains the cardinal properties of union of two sets as n(A ∪ B) = n(A) + n(B) – n(A ∩ B)

Lesson Outcomes

• At the end of this lesson, the student will be able to:
• Define set, elements of a set, cardinal number of a set
• Understand the cardinal property of union of two sets n(A ∪ B) = n(A) + n(B) – n(A ∩ B)