## About

less than is a comparison operator that creates a binary relationship.

## Articles Related

## Representation

### Set of tuples

The relation less than or equal to (<=) on the set of integers {1, 2, 3} is the following set of tuple

```
<1, 1>,
<1, 2>,
<1, 3>,
<2, 2>,
<2, 3>,
<3, 3>
```

### Visual

The relationship less than or equal between y and x (ie y <= x) can be represented in the set <math>R</math> against <math>R^2</math> as the below gray area: