# In Aristotelis analyticorum priorum librum I commentarium 8

Alexander of Aphrodisias, In Aristotelis analyticorum priorum librum I commentarium, Page 32a8. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/alexander-of-aphrodisias/in-aristotelis-analyticorum-priorum-librum-i-commentarium/8

Τοῦ δ’ ἀναγκαίου ἔστι καὶ τῆς ἑτέρας μόνον ἀναγκαίας οὔσης· Δέδειχεν ἐπὶ τοῦ τρίτου σχήματος οὐσῶν τῶν δύο καθόλου καταφα- τικῶν προτάσεων, ὅτι, ὁποτέρα ἄν αὐτῶν ἀναγκαία ληφθῇ, ἀναγκαῖον τὸ συμπέρασμα, ὥστε καὶ τῆς ἑτέρας μόνης ἀναγκαίας οὔσης ἀναγκαῖον τὸ συμπέρασμα. δέδεικται δὲ τοῦτο καὶ ἐν τοῖς ἄλλοις σχήμασιν, ὅτι τῆς ἑτέρας οὔσης ἀναγκαίας γίνεται καὶ τὸ συμπέρασμα ἀναγκαῖον. οὐ γὰρ οἷόν τε ἀμφοτέρας λέγειν ἀναγκαίας τῆς ἑτέρας ὑπαρχούσης <οὔσης>· τὸ ὑπάρχον οὐκ ἀναγκαῖον, ὥσπερ τὸ ἀναγκαῖον καὶ ὑπάρχον.

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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/.