According to Pure Russellianism, if -/- (1) David believes that Hesperus is a planet -/- is true, -/- (2) David believes that Phosphorus is a planet -/- is also true. It is also usually thought, by friends and foes of Pure Russellianism alike, that on it, when (1) and (2) are true, -/- (3) David does not believe that Phosphorus is a planet -/- cannot but be false and because of this, many departed from Pure Russellianism. In this paper, I (...) will show that by relying on the very explanation Pure Russellianism is usually combined with to account for sentences such as (1) and (2) and by acknowledging the well-attested linguistic phenomenon of metalinguistic negation, even if (1) and (2) are true, it is not the case that on Pure Russellianism (3) cannot but be false. (shrink)