In this paper I focus on the relationships between language, definition and being in Antisthenes. I start from Plato’s Sophist 251b–c, in which the reference to the ὀψιμαθεῖς stands out, and I conclude that it is not possible to identify these characters with Antisthenes. The conception of ὀψιμαθεῖς provides for the exclusive legitimacy of identical judgments, exploiting in an eristic sense an evident Eleatic legacy. But this position, rather than concordances, reveals serious opposition to what is surely known to us (...) of the logical and linguistic doctrines of Antisthenes. The most explicit testimony about the relationship between language and being in Antisthenes is handed down by Porphyry, who attributes to Antisthenes the equation λέγειν = λέγειν τι = λέγειν τὸ ὄν. My analysis intends to show that this equation is assumed by Antisthenes through a Socratic mediation and has a double objective: to ensure an objective reference of language, as opposed to Gorgias’ self-referential conception of language, and to nullify the antilogy, which is typical of sophistic argumentation. To it Antisthenes contrasts the ἐπίσκεψις τῶν ὀνομάτων, which is a development of Socratic ἐξετάζειν, and whose aim is to reach, at the end of the examination, no longer just a ὁμολογία, but a definition valid once and for all. Antisthenes is aware that there is a distinction between essence and quality, and with this, he moves a first important step beyond the univocal conception of being proper to Parmenides. The doxography will sum up Antisthenes’ position by describing him as the first philosopher to advance a definition of logos, i. e., definition. He bases his theory of definition on the identification of that attribute which is ἴδιον καὶ οἰκεῖον of the proposed object. Antisthenes coined the phrase τὸ τί ἦν to designate what the predicate is meant to say in a definition, i. e., the proper quality. This expression does not seem to identify the general notion of a predicate as such, but rather to indicate the determination or qualification necessary to actually define the object in question. In the final part of my article, I examine some testimonies that show how, with his theory of definition, Antisthenes is, and was considered already in antiquity, the precursor of the Stoic theory of definition, whose objective is, according to Chrysippus’ formula, to provide the explanation of what is proper (ἰδίου ἀπόδοσις). (shrink)

Two literal quotations from Chrysippus’ On Possibles, preserved in Plutarch’s On the Contradictions of the Stoics, seem to contradict the Stoic thesis of the isotropy of the void. According to this thesis the void is an infinite undifferentiated expanse whose center is marked by, and coincides with, the position of the world. Since there is nothing else outside the world, the cohesive force that pervades it is sufficient on its own to guarantee the quasi–indestructibility of the trans–cyclical διακόσμησις and the (...) eternity of the οὐσία. Conversely, in these two quotations Chrysippus maintains that there is a central διαφορά equipped with causal force. This seems to imply the anisotropy of the void. Chrysippus’s view here is also at odds with another official Stoic thesis, i.e. that the incorporeal is causally inert. In this paper it will be argued that there is in fact no contradiction, because, in those two quotations, Chrysippus consciously develops a cosmological hypothesis in order to resolve a difficulty concerning the role of fire during the universal conflagration. Chrysippus’ solution to this difficulty belongs to modal logic and consists in distinguishing between the actual universe and the possible ones. (shrink)

The Stoics have often been compared to the earthborn Giants in the Battle of Gods and Giants in Plato’s Sophist, but with diverging opinions about the lessons they drew in reaction to Plato. At issue are questions about what in the Sophist the Stoics were reacting to, how the Stoics are like and unlike the Giants, the status of being for the Stoics, and the extent to which they were Platonizing with their incorporeals. With these open questions in mind, I (...) reexamine the Sophist from the Stoic perspective, finding eight distinct challenges that are likely to have been salient to the Stoics, and offer a new account of the Stoics as responding to these challenges with an innovative ontology that prises apart something from being to make room for what is not, and a sophisticated one-world metaphysics that grounds everything there is in two fundamental bodies. (shrink)

In this dissertation I consider the merits of certain nominalist accounts of phenomena related to the character of ordinary objects. What these accounts have in common is the fact that none of them is an error theory about standard cases of predication and none of them deploys God or uniquely theistic resources in its explanatory framework. -/- The aim of the dissertation is to answer the following questions: -/- • What is the best nominalist account on offer? • How might (...) it be improved? • Does it ultimately succeed? -/- I will argue that while so-called trope theory is the best account on offer, it can be significantly improved—or replaced—by a novel version of nominalism that is modeled after trope theory. Ultimately, however, I will argue that even the novel version fails. -/- The dissertation unfolds as follows. In Chapter 1, I introduce Austere Nominalism (AN), which is perhaps the most extreme version of nominalism that falls within the scope of the dissertation. AN is often described as the view that there exist only concrete particulars. According to AN, it is unnecessary to posit any entities other than ordinary objects—turkeys, tables, and the like—in order to account for explananda related to the character of those objects. (Such explananda include the phenomenon of attribute agreement, of attribute possession, of true subject-predicate sentences, etc.) In this chapter I argue that AN fails to provide an adequate account of these explananda. In addition, introducing and criticizing AN serves an important heuristic role for the rest of the dissertation. To understand this role, we must distinguish between the basic explanatory strategy deployed by the austere nominalist and the type of explananda for which she deploys that strategy. The austere nominalist deploys the strategy to account for the character of ordinary objects. As I argue in Chapter 1, this deployment is a failure. As I go on to show in Chapter 2, the widespread rejection AN has led to a variety of rival accounts of the character of ordinary objects. In rejecting AN, however, these accounts also tacitly reject its basic explanatory strategy. Thus goes the baby with the bathwater, since, arguably, there are some attractive features of AN’s basic explanatory strategy. Indeed, those who defend the most prominent version of nominalism—trope theory—seem to overlook the advantages of AN’s basic strategy, and by so doing, make an unnecessary concession to the realist. Or so I argue in Chapter 3. And, as I will argue in Chapter 4, the strongest version of nominalism is a novel account, modeled after trope theory, that deploys AN’s basic strategy at a more fundamental level than that of ordinary objects. This novel account—troper theory—is closer in spirit to AN than is traditional trope theory. (Thus, AN serves as a foil for the discussion of other nominalist views.) Finally, in the Afterword I indicate how troper theory is equally vulnerable to some of the traditional objections that plague trope theory. Thus, if you are not convinced that traditional objections to trope theory are conclusive and you want to be a nominalist, then you should abandon trope theory and adopt troper theory. If you take traditional objections against trope theory to have significant force, then you should reject both theories. (shrink)