[35] 35. Ἐν τοῖς Κατοπτρικοῖς p. 176,
18 φησὶ γὰρ
ἐκεῖσε ὁ Εὐκλείδης οὕτως· ἀπὸ τῶν ἐπιπέδων ἐνόπτρων καὶ κυρτῶν καὶ κοίλων αἱ ὄψεις ἐν ἴσαις γωνίαις ἀνακλῶνται. ἁρμόζει δὲ αὐτῷ καὶ τὸ ἐν τοῖς ὅροις τῶν Κατοπτρικῶν εἰρημένον· ἐνόπτρου τεθέντος ἐν ἐπιπέδῳ
καὶ τὰ ἑξῆς.
ἐκεῖσε ὁ Εὐκλείδης οὕτως· ἀπὸ τῶν ἐπιπέδων ἐνόπτρων καὶ κυρτῶν καὶ κοίλων αἱ ὄψεις ἐν ἴσαις γωνίαις ἀνακλῶνται. ἁρμόζει δὲ αὐτῷ καὶ τὸ ἐν τοῖς ὅροις τῶν Κατοπτρικῶν εἰρημένον· ἐνόπτρου τεθέντος ἐν ἐπιπέδῳ
καὶ τὰ ἑξῆς.
Ad prop. XXI.
Scholia in opticorum recensionem Theonis (scholia vetera). Scholia in Euclidem. ed. Johan Ludvig Heiberg, ed. H. Menge. United States. 2018.
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