 The determination relation appears to differ from other specification relations. In contrast with the genus-species and conjunct-conjunction relations, where the more specific property can be understood as a conjunction of the less specific property and some independent property or properties, a determinate is not naturally treated in conjunctive terms (red is not a conjunctive property having color and some other property or properties as conjuncts); and in contrast with the disjunction-disjunct relation, where disjuncts may be dissimilar and compatible (as with red or round), determinates of a determinable (at a given level of specificity) are both similar and incompatible (red and blue are similar in both being colors; nothing can be simultaneously and uniformly both red and blue). Supporting this latter contrast is that our thoughts about determinables do not appear to be about (potentially infinite) disjunctions of determinates, and our perceptions of properties such as color and shape do not appear to be of maximal determinates, as would be the case if determinables were disjunctions of determinates (since every instance of a disjunction is an instance of a disjunct).