1. Ad prop. XIX. Ἄλλως τὸ ιθ΄.
οὖν τὸ δοθὲν μέγεθος τὸ ΕΖ λοιποῦ ἄρα τοῦ ΖΒ πρὸς τὸ Δ λόγος ἐστὶ δοθείς. καί ἐστι δοθὲν τὸ ΑΖ τὸ ΑΒ ἄρα τοῦ Δ δοθέντι μεῖζόν ἐστιν ἢ ἐν λόγῳ.
Data (demonstrationes alterae). Euclid. ed. Johan Ludvig Heiberg, ed. Heinrich Menge. United States. 2016.
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