§63c.1Fr. 63c
Θ. μέντοι καὶ Εὔδημος ἀντιστρέφειν φασὶ καὶ τὴν καθόλου ἀποφατικὴν αὑτῇ, ὥσπερ ἀντέστρεφε καὶ ἡ ὑπάρχουσα καθόλου ἀποφατικὴ καὶ ἡ ἀναγκαία.
However, Theophrastus and Eudemus say that the contingent universal negative proposition also converts with itself, just as both the assertoric universal negative and the necessary one converted.