A set is defined as a collection of objects. The document describes two ways to represent a set, including roster form and functions. It also touches on function types and binary operations related to sets.

2. • A SET IS A COLLECTION OF OBJECTS.
• 2 WAYS OF REPRESENTING A SET
ROSTER FORM

16. FUNCTIONS

19. TYPES OF FUNCTIONS

25. BINARY OPERATIONS

27. 𝑒 ∈ 𝐴 𝑠𝑢𝑐ℎ
𝑢𝑛𝑑𝑒𝑟 ∗
𝑒