# Not

- `v::not(v $negatedValidator)`

Negates any rule.

```php
v::not(v::ip())->validate('foo'); // true
```

In the sample above, validator returns true because 'foo' isn't an IP Address.

You can negate complex, grouped or chained validators as well:

```php
v::not(v::intVal()->positive())->validate(-1.5); // true
```

Each other validation has custom messages for negated rules.

***
See also:

  * [NoneOf](NoneOf.md)