 We turn now to canvassing contemporary accounts of determinables, determinates, and their relation. The main varieties of contemporary ontological accounts are anti-realist accounts, on which determinables do not exist; reductive accounts, on which determinables exist but are metaphysically reducible to (that is, identical with) some or other construction of determinates; and non-reductive accounts, on which determinables exist and are not metaphysically reducible to any construction of determinates. Non-reductive accounts furthermore split into versions on which determinables are (always) less fundamental than associated vis-á-vis determinates, and accounts on which determinables can be as fundamental as, or even more fundamental than, determinates; we reserve treatment of this further issue for  §4.  A different sort of contemporary account is directed not so much at the ontological question(s) as at elucidating certain structural or broadly logical aspects of determination or associated relata.