 The divergences discussed in the section on universals between antirealists and moderate realists are reflected when it comes to language: while antirealists hold that language, just like conceptual thought, merely deals with fictions, moderate realists argue that language captures real features of the world, even if only in a distorted fashion. They thereby admit real properties shared by discrete instances. These properties are (due to commentarial requirements) presented in negative terms, as “objective exclusions.” For later Gelukpa authors, the “not being non-x” (some authors do not bother with the double negation) shared by several instances is the main object of the convention, while the corresponding concept, the don spyi, is its secondary object.