§57d.1Fr. 57d
Ἐμνημόνευσε τοῦ οὕτως ἀδιορίστου καὶ Θ. ἐν τῷ περὶ Καταφάσεως· τὸ γὰρ εἶναί τι τούτων καὶ τὸ ἕτερον εἶναι ἀδιόριστα λέγει, τὸ μὲν εἶναί τι τούτων, ὅτι καὶ πάντων ὄντων ἀληθὲς καὶ τῶν μὲν ὄντων τῶν δὲ μή· τὸ δὲ τὸ ἕτερον εἶναι, ὅτι καὶ τοῦτο ἀληθὲς καὶ ἀμφοτέρων ὄντων καὶ τοῦ ἑτέρου μόνου.
Theophrastus also made mention of the indeterminate in this sense in his *On Affirmation*; for he calls "for some of these to exist" and "for the other to exist" indeterminate: the former, "for some of these to exist," because it is true both when all exist and when some exist and others do not; the latter, "for the other to exist," because this too is true both when both exist and when only the one exists.