Essays on Aristotle's Sea-Battle, Lazy Argument, Argument Reaper, Diodorus' Master Argument -/- The book is devoted to the ancient logical theories, reconstruction of their semantic proprieties and possibilities of their interpretation by modern logical tools. The Ancient arguments are frequently misunderstood in modern interpretations since authors usually have tendency to ignore their historical proprieties and theoretical background what usually leads to a quite inappropriate picture of the argument’s original form and mission. Author’s primary intention was to draw attention to the (...) complexity of some historical arguments and to the theoretical context in which arguments were created, circulated, developed, and finally tuned. Four well-known ancient arguments – with a common central subject related to the future contingencies problem – are reconstructed from available historical sources: “The Sea Battle”, which is drawn from Aristotle’s treatise De Interpretatione; two arguments, usually ascribed to the Stoics, “The Lazy Argument” and “The Reaper”; “The Master Argument” of the Megarian philosopher Diodorus. Arguments are linguistically and semantically detaily analyzed, formally presented by reflecting some relevant corresponding hypotheses based on physical or logical theories of their ancient authors, and finally covered by appropriate logical tools familiar to a modern reader. Two appendices are added at the closing part of the book. One covering some assumptions relevant for understanding of rival streams in ancient theories of meaning related to the nature of names and naming; the other is devoted to the ancient understanding of logical proposition and attempts to find an adequate Latin translation of the Greek delicate philosophical term “ἀξίωμα”. (shrink)

Epicurus denies that human beings have natural parental love for their children, and his account of the development of justice and human political community does not involve any natural affinity between human beings in general but rather a form of social contract. The Stoics to the contrary assert that parental love is natural; and, moreover, they maintain that natural parental love is the first principle of social οἰκείωσις, which provides the basis for the naturalness of justice and human political community. (...) The Stoics are, therefore, obliged to refute Epicurus’ denial of the naturalness of parental love in order to support their own theory of social οἰκείωσις; and we have good evidence for the arguments that they employed against the Epicureans on this account. Likewise, the Epicureans are obliged not only to defend their own position but also to undermine the competing Stoic theory of social οἰκείωσις; and the foundational premise of a natural bond between parent and child is an obvious target. However, beyond dogmatically restating Epicurus’ denial of natural parental love, the evidence for the Epicurean line of attack against the Stoics is currently unclear. In this paper I argue that we can go some way towards uncovering it via an analysis of some fragmentary passages from an unidentified work of the Epicurean Demetrius of Laconia that contain a puzzling discussion of Epicurus’ stance on parental love. (shrink)

Sextus Empiricus ascribes to Epicurus a curious account of truth and falsehood, according to which these characteristics belong to things in the world about which one speaks, not to what one says about them. I propose an interpretation that takes this account seriously and explains the connection between truth and existence that the Epicureans also seem to recognise. I then examine a second Epicurean account of truth and falsehood and show how it is related to the first.

This article presents a detailed exploration of what Sextus and Pyrrhonists regarded as mnemonic signs, where one experience reminds us of another, such as seeing smoke reminds us of a fire that is not yet evident to our present observations. For the skeptic the use of mnemonic signs obviates the need for reasoned, theoretical interpretations or elaborated belief formation. It allows the skeptic or the theory-free physician, for that matter, to live a life or practice symptomatic medicine without the need (...) for philosophizing. (shrink)

One of the most intriguing claims of Stoic logic is Chrysippus's denial of the modal principle that the impossible does not follow from the possible. Chrysippus's argument against this principle involves the idea that some propositions are ?destroyed? or ?perish?. According to the standard interpretation of Chrysippus's argument, propositions cease to exist when they are destroyed. Ide has presented an alternative interpretation according to which destroyed propositions persist after destruction and are false. I argue that Ide's alternative interpretation as well (...) as some versions of the standard interpretation conflict with Stoic doctrines about the nature of propositions. I propose another version of the standard interpretation based on Frede's account of the Stoic theory of the proposition. I hold that this version of the standard interpretation both escapes Ide's objections and is consistent with Stoic logic and philosophy of language. (shrink)

Chrysippus claims that some propositions perish. including some true conditionals whose consequent is impossible and antecedent is possible, to which he appeals against Diodorus?s Master Argument. On the standard interpretation. perished propositions lack truth values. and these conditionals are true at the same time as their antecedents arc possible and consequents impossible. But perished propositions are false, and Chrysippus?s conditionals are true when their antecedent and consequent arc possible, and false when their antecedent is possible and consequent impossible. The claim (...) of the Master Argument that Chrysippus rejects, then, is stronger ihan usually supposed. (shrink)