The notation for the intersection of set A and set B is A∩B ... who own a cat (the complement of cat owners). Make sure that the number of elements in the Venn diagram is equal to the number ...

This app displays an intricate Venn diagram, containing various combinations of set intersections, unions and complements. Users can shade the area they choose by clicking on the diagram. Users can ...

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.