 Whether or not Prosser is correct, however, Hausman's identification of self-undermining tensions is weak. A claim to have always belonged to a sex and a claim to have become a sex through surgery are only in tension if ‘sex’ is used univocally in the two claims. But it isn't clear that this is so. If claims to have always belong to a sex are used to flag a gender identity and perhaps the sense that one ought to have born to the other sex (on the one hand), while claims to have changed one's sex are used to flag bodily transformation (on the other hand), then there scarcely seems to be a self-defeating tension.