Abstract
This is an exploration of some problems of nonexistence, with special attention paid to Nathan Salmón’s account of merely possible and impossible objects (or entities or things). According to this account, we can refer to such objects and attribute properties to them. The terms ‘possible’ and ‘impossible’ should be understood in the familiar metaphysical sense, so that a merely possible object is one that does not exist at the actual world but exists at some metaphysically possible world (it could exist even though it does not) and an impossible object is one that does not exist at any metaphysically possible world (it could not exist at all). Other nonexistents, such as objects that once existed at the actual world but no longer do, will also be discussed, but mainly by way of comparison to merely possible and impossible objects. Salmón subscribes to both the direct reference theory of names and the Millian theory of names. Section I is a preliminary discussion of these theories, contrasting them with the formerly orthodox views of Frege and Russell. Section II presents Salmón’s account of merely possible and impossible objects. Sections III and IV are an evaluation and defense of a modified version of the account. Among other things, it is argued that Salmón’s account does not slip into any problematic form of Meinongianism. However, section V questions why Salmón’s account of impossible objects would not extend to Meinong’s notorious round square.