 The three views of supererogation are three responses to the “paradox of supererogation,” namely how can the moral good not be required as a duty. The first view recognizes the paradox and addresses it by denying the very possibility of supererogation; the second resolves what it sees as an apparent paradox by explaining the conditions under which duty loses its prescriptive force; the third view denies that there is in the first place any paradox in the gap between the “good” and the “ought,” thus leaving room for an independent category of supererogation.