[48] 67a 33-37, μὴ συνθεωρῶν τὸ καθ᾽ ἑκάτερον.
[49] 67a 39-63.
[50] 79a 4-5.
[51] 24b 10-11.
[52] Posterior Analytics, i. 4 καθ᾽ αὐτὸ means (1) contained in the definition of the subject; (2) having the subject contained in its definition, as being an alternative determination of the subject, crooked, e.g. is per se of line; (3) self-subsistent; (4) connected with the subject as consequent to ground. Its needs stricter determination therefore.
[53] 73b 26 sqq., 74a 37 sqq.
[54] 90b 16.
[55] Metaphys. Z. 12, H. 6 ground this formula metaphysically.
[56] 94a 12, 75b 32.
[57] 90a 6. Cf. Ueberweg, System der Logik, § 101.