The middle of a Venn diagram where two or more sets overlap is known as the intersection or the union. Does a Venn Diagram Always Use Two or Three Circles? While often employing a pair or trio of ...

union and complement. It was introduced in the late 1800s by English logician, John Venn, although it is believed that the method originated earlier. THIS DEFINITION IS FOR PERSONAL USE ONLY.

The union of set A and set B contains the elements ... 30 people answered a survey about whether they have a dog or a cat. The Venn diagram shows the information from the survey.