# In Aristotelis analyticorum priorum librum I commentarium 7-2

Alexander of Aphrodisias, In Aristotelis analyticorum priorum librum I commentarium, Page 34a7. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/alexander-of-aphrodisias/in-aristotelis-analyticorum-priorum-librum-i-commentarium/7-2

Ἔστω γὰρ οὕτως ἐχόντων τὸ μὲν ἐφ’ ᾧ τὸ Α δυνατόν, τὸ δὲ ἐφ᾿ ᾧ τὸ Β ἀδύνατον. οὕτως ἐχόντων, ὡς προειρήκαμεν, εἰ τοῦ Α ὄντος ἀνάγκη τὸ Β εἶναι. οὔσης δὲ ταύτης <τῆς> ἀκολουθίας καὶ ἐξ ἀνάγκης ἑπομένου Β τῷ Α ὑποκείσθω τὸ μὲν Α δυνατὸν εἶναι τὸ δὲ Β ἀδύνατον. τὸ δὴ Α ἐπειδὴ δυνατόν ἐστι, κἀν γένοιτο, ὅτε δυνατόν ἐστι γενέσθαι [τοῦ ἐνδέχεσθαι μή]· ὁμοίως καὶ τὸ Β, εἰ ἀδύνατον εἴη, ὅτε ἀδύνατόν ἐστι γενέσθαι, οὐκ ἄν γένοιτο. εἰ δὴ ἅμα εἴη τὸ μὲν δυνατὸν τὸ δὲ ἀδύνατον, ὅτε τὸ Α ἐστί, τὸ Β, καθ’ ὃ μέν ἐστιν ἀδύνατον, οὐκ ἄν εἴη, καθ’ ὃ δὲ ἀνάγκη τοῦ Α ὄντος εἶναι αὐτό, εἴη ἄν. ἅμα τε οὖν εἴη ἄν καὶ οὐκ εἴη τὸ Β, ὅπερ ἀδύνατον. δυνατοῦ ἄρα ὄντος τοῦ ἡγουμένου δυνατὸν ἔσται καὶ τὸ ἑπόμενον ἐξ ἀνάγκης αὐτῷ· τοῦτο δὲ ἦν τὸ Β.

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Alexander of Aphrodisias, In Aristotelis analyticorum priorum librum I commentarium, ed. Maximilian Wallies. Text: The Greek Library, from the Perseus Digital Library and other open sources, CC BY-SA 4.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Source: https://thegreeklibrary.pages.lisn.upsaclay.fr/works/tlg0732.tlg005.local001/.