Fragmenta varia
Theophrastus
Theophrastus. Theophrasti Eresii Opera, Quae Supersunt, Omnia. Wimmer, Friedrich, editor. Paris: A.F. Didot, 1866.
Fr. 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. (Alex. in Arist. Anal. pr. p. 152 b Bk.)