## Why is it called Venn diagram?

Venn diagrams were invented by a guy named John Venn (no kidding; that was really his name) as a way of picturing relationships between different groups of things. Since the mathematical term for “a group of things” is “a set”, Venn diagrams can be used to illustrate set relationships.

### What are the parts of a Venn diagram called?

A Venn diagram consists of multiple overlapping closed curves, usually circles, each representing a set. The points inside a curve labelled S represent elements of the set S, while points outside the boundary represent elements not in the set S.

What does U and upside down U mean in math?

Union and Intersection There is also “Intersection” which means “has to be in both”. Think “where do they overlap?”. The Intersection symbol is an upside down “U” like this: ∩

What does AUB mean in math?

union of the sets A and B

## What is Venn diagram method?

A Venn diagram is an illustration that uses circles to show the relationships among things or finite groups of things. Circles that overlap have a commonality while circles that do not overlap do not share those traits. Venn diagrams help to visually represent the similarities and differences between two concepts.