A.conversational, “χορός” Demetr.Eloc.167.
II. skilled in dialectic, “ὁ ἐρωτᾶν καὶ ἀποκρίνεσθαι ἐπιστάμενος” Pl.Cra.390c; “ἦ καὶ δ. καλεῖς τὸν λόγον ἑκάστου λαμβάνοντα τῆς οὐσίας;” Id.R.534b; dialectical, Arist. Metaph.995b23; “δ. συλλογισμός” Id.Top.100a22; πρὸς τοὺς δ., title of work by Metrodorus, D.L.10.24, cf. Phld.Rh.1.279 S., al.
III. ἡ διαλεκτική (sc. τέχνη) dialectic, discussion by question and answer, invented by Zeno of Elea, Arist.Fr.65; philosophical method, “ὥσπερ θριγκὸς τοῖς μαθήμασιν ἡ δ. ἐπάνω κεῖται” Pl.R.534e: “τὸ -κόν” Id.Sph. 253e; περὶ -κῆς, title of work by Cleanthes, D.L.7.174.
2. the logic of probabilities, “ἡ δ. πειραστικὴ περὶ ὧν ἡ φιλοσοφία γνωριστική” Arist.Metaph.1004b25, cf. Rh.1354a1.
IV. Adv. “-κῶς” dialectically, Pl.Phlb.17a, etc.; for the sake of argument, opp. κατ᾽ ἀλήθειαν, Arist. Top.105b31, cf. de An.403a2; by argument on general principles, opp. scientifically, Phld.Rh.2.134 S., Mus.p.89 K.: Comp. “-ώτερον” Pl.Men. 75d; more logically, Dam.Pr.97.