Kitap 1
2.19
We have now stated the materials of proofs which are thought to be demonstrative.
2.20
But a very great difference between enthymemes has escaped the notice of nearly every one, although it also exists in the dialectical method of syllogisms. For some of them belong to Rhetoric, some syllogisms only to Dialectic, and others to other arts and faculties, some already existing and others not yet established. Hence it is that this escapes the notice of the speakers, and the more they specialize in a subject, the more they transgress the limits of Rhetoric and Dialectic. But this will be clearer if stated at greater length.