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.

A Venn diagram can ... of set A and set B is A∩B. The intersection contains elements that are in both set A and set B. Image caption, The combination of sets is the union. The notation for ...

We write it as \({A}\cap{B}\). In the example above \({A}\cap{B}\) = {6, 7, 9, 12}. The union of a Venn diagram is the numbers that are in either Set A or Set B. The union of the above example is ...