Doctrine\MongoDB\Query\Builder::not PHP Method

You can create a new expression using the {@link Builder::expr()} method.

See also: Expr::not()

See also: http://docs.mongodb.org/manual/reference/operator/not/

public not ( array \| Expr $expression )
$expression	array \| Expr

    public function not($expression)
    {
        $this->expr->not($expression);
        return $this;
    }