[[Infix Operators|Operators]] must have a precedence, which tells the language in what order to group the expressions.

e.g. in this expression:
```haskell
a + b == c
```

this behaves how you'd expect; this is equivalent to

```haskell
((a + b) == c)
```

This is because the precedence of `+` (6) is higher than `==`'s (4), the grouping is first done around `a + b`.