Learn about finding probabilities from Venn diagrams with this BBC Bitesize Maths article. For students between the ages of 11 and 14.

If you think Venn diagrams are just a bunch of interlocking circles, ... Grünbaum and Edwards independently discovered this symmetrical Venn diagram for seven sets, the next prime number.

Venn used the diagrams to prove a form of logical statement known as a categorical syllogism. This can be used to model reasoning. Here’s an example: “All computers need power.