Note 24 — Chapter IV · DE INTERPRETATIONE.

Referring to the words cited in the preceding note, I construe τὰ δὲ δύο, οὔ as Boethius does (II. pp. 384-385), and not in agreement with Ammonius (Schol. p. 122, a. 26, Br.), who, however, is followed both by Julius Pacius and Waitz (p. 344). I think it impossible that these words, τὰ δὲ δύο, οὔ, can mean (as Ammonius thinks) the κατάφασις and ἀπόφασις themselves, since the very point which Aristotle is affirming is the relation of these words, πρὸς τὴν κατάφασιν καὶ ἀπόφασιν, i.e. to the affirmative and negative started from —

(A) Est justus homo … … … … (B) Non est justus homo.

As the words τὰ μὲν δύο refer to the second contradictory pair (that is, C and D) in the first Quaternion, so the words τὰ δὲ δύο, οὔ designate the second contradictory pair (G and H) in the second Quaternion. Though G and H are included in the second Quaternion, they are here designated by the negative relation (τὰ δὲ δύο, οὔ) which they bear to A and B, the first contradictory pair of the first Quaternion. διχῶς λέγονται αἱ ἀντιθέσεις (line 20) is explained and illustrated by line 37 — αὗται μὲν οὖν δύο ἀντίκεινται, ἄλλαι δὲ δύο πρὸς τὸ οὐκ ἄνθρωπος ὡς ὑποκείμενόν τι προστεθέν. Lastly, Aristotle expressly states that the second Quaternion will stand independently and by itself (p. 20, a. 1), having noticed it in the beginning only in relation to the first.