which are easier to understand and are proven to exist only for Venn diagrams with a prime number of sets. For purity’s sake, these diagrams must also be “simple”, meaning no more than two ...

This is the total of the people that are not in the set of people 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 of ...

Image: Wikimedia Commons) Things get prettier as the number of sets increases: Grünbaum and Edwards independently discovered this symmetrical Venn diagram for seven sets, the next prime number.

Venn diagrams give a visual representation of sets and their logical relations and overlaps. The actual logic behind these nine diagrams varies according to the humor intended. This Venn diagram ...