Kitap 3
17.13
Refutative enthymemes are more popular than demonstrative, because, in all cases of refutation, it is clearer that a logical conclusion has been reached; for opposites are more noticeable when placed in juxtaposition.There is no difference in form between the demonstrative and refutative enthymeme, but the latter draws opposite conclusions; and opposites are always more striking when they are brought together, and a parallel drawn between them. It is then easy to see where the fallacy lies. Cf. 2.23.30: Refutative enthymemes are more effective (popular) than demonstrative, because they bring opposites together in a small compass, which are more striking (clearer) to the hearer from being put side by side.