In this Section:
In this section, we will continue to learn about sets. Here we will present the popular Venn diagram. This diagram is generally drawn as a rectangle, which represents the universal set. Sets are usually drawn as circles within the rectangle. This diagram allows us to visually represent the relationship between two or more sets. We will use the Venn diagram to visually determine: the intersection of two or more sets, the union of two or more sets, and the complement of a set. The union of two or more sets is a set that contains all elements of both sets, with no duplicates. The intersection of two or more sets is a set that contains all elements common to every set. Lastly, the complement of a set contains all elements of the universal set that are not included in the set under consideration.