Exploring Sets of Numbers: Closed and Open Systems

In this video, we explore the concept of closed and open sets of numbers. We learn that a set is closed under an operation if applying that operation to any two members of the set always results in a member of the set. We also discover that not all sets of numbers are closed under all operations, and we examine examples of sets that are closed and sets that are not closed. This lesson helps us understand the properties and relationships between different sets of numbers.