Note 30 — Chapter X · SOPHISTICI ELENCHI.
Reading edition
The same double or multiple meaning of Est is discriminated by Aristotle in the Metaphysica, but in a different way — τὸ ὂν ὡς ἀληθές, καὶ τὸ μὴ ὂν ὡς ψεῦδος — Δ. vii. p. 1017, a. 31; E. iv. p. 1027, b. 18-36. Bonitz (ad. Metaphys. Z. iv. p. 310) says:— “Quid quod etiam illud esse huc refert, quo non existentiam significamus, sed predicati cum subjecto conjunctionem.” Aristotle is even more precise than modern logicians in analysing the different meanings of τὸ ὄν: he distinguishes four of them.