On the emergence of public practices of proof and refutation, see G. E.R. Lloyd, Magic, Reason and Experience: Studies in the Origins and Development of Greek Science (Cambridge: 1979), Chapter 2. On the dialectical origins of logic, see E. Kapp, Greek Foundations ofTraditional Logic (New York: 1942). Translations of the most important of Aristotle’s works on logic and dialectic with notes and introductions: R. Smith, Aristotle: Prior Analytics (Indianapolis: 1989), J. Brunschwig, Aristote: Topiques, Livres I-IV (Paris: 1967), R. Smith, Aristotle: Topics Books I and VIII (Oxford: 1997) andL.-A. Dorion, Aristote:Les refutations sophistiques (Paris: 1995). On possible developments in Aristotle’s thinking about logic, see J. Barnes, ‘Proof and the Syllogism’, in E. Berti (ed.), Aristotle on Science: the Posterior Analytics (Padua: 1981), pp. 17-59. On Aristotle’s formal logic and its wider purposes, see G. Striker, ‘Aristotle and the Uses of Logic’, in J. Gentzler (ed.), Method in Ancient Philosophy (Oxford: 1998), pp. 209-226. C. Rapp, Aristoteles: Rhetorik, 2 vols. (Berlin: 2002) contains, apart from a translation, extensive discussions of issues having to do with the content and context of Aristotle’s rhetoric. On the enthymeme, see, above all, M. F. Burnyeat, ‘Enthymeme: Aristotle on the Logic of Persuasion’, in D. J. Furley and A. Nehamas (eds.), Aristotle’s Rhetoric: Philosophical Essays (Princeton: 1994), pp. 3-55 and ‘Enthymeme: Aristotle on the Rationality of Rhetoric’, in A. O. Rorty (ed.), Essays on Aristotle’s Rhetoric (Princeton: 1996), pp. 88-115. There is a selection of texts on Stoic dialectic and rhetoric in A. A. Long and D. N. Sedley (eds.), The Hellenistic Philosophers (Cambridge: 1987), Chapter 31. On Stoic logic, see J. Barnes, ‘Introduction’ and J. Barnes and S. Bobzien, ‘Logic’, in K. Algra et al. (eds.), The Cambridge History of Hellenistic Philosophy (Cambridge: 1999), pp. 65-176 andS. Bobzien, ‘Stoic Logic’, in B. Inwood (ed.), The Cambridge Companion to Stoic Philosophy (Cambridge: 2002), pp. 85-123. On Stoic rhetoric and its relation to Stoic logic, see C. Atherton, ‘Hand over Fist: The Failure of Stoic Rhetoric’, CQ2 38 (1988), pp. 392-427 and J.-B. Gourinat, La Dialectique des Stoiciens (Paris: 2000), Chapter 2.