## 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.