[In the introduction to his Middle Commentary on Aristotle's Topics, Averroes said] This art has three parts. The first part sets forth the speeches … - Averroes

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[In the introduction to his Middle Commentary on Aristotle's Topics, Averroes said] This art has three parts. The first part sets forth the speeches from which dialectical conversation is composed — i.e., its parts, and the parts of its parts on to its simplest components. This part is found in the first treatise on Aristotle's book.
The second part sets forth the topics from which syllogisms are drawn — syllogisms for affirming something or denying it with respect to every kind of problem occurring in this art. This is the next six treatises of Aristotle's book
The third part set forth how The third part sets forth how the questioner ought to question and the answerer answer. It also sets forth how many kinds of questions and answers there are. This is in the eighth treatise of Aristotle's book."