 Alexander of Aphrodisias |  Ammonius |  Aristotle, commentators on |  Aristotle, General Topics: logic |  Boethius, Anicius Manlius Severinus |  -->Chrysippus--> |  conditionals |  connectives: sentence connectives in formal logic |  Dialectical School |  Frege, Gottlob |  future contingents |  Galen |  indexicals |  liar paradox |  logic: classical |  logic: inductive |  logic: modal |  logic: relevance |  logic: temporal |  Plato |  propositions |  Sorites paradox |  square of opposition |  Stoicism |  truth: correspondence theory of |  truth: deflationation about |  Zeno of Elea: Zeno’s paradoxes 