# Synagoge 7

Pappus Alexandrinus, Synagoge, ΠΑΠΠΟΥ ΑΛΕΞΑΝΔΡΕΩΣ ΣΥΝΑΓΩΓΗ. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/pappus-alexandrinus/synagoge/7

7 ιη΄. Ἐπὶ δὲ τοῦ ιθ΄ θεωρήματος. Ἔστω τις ἀριθμὸς ὁ Α ἐλάσσων μὲν ἑκατοντάδος μετρούμενος δὲ ὑπὸ δεκάδος, καὶ ἄλλοι ὁσοιδηποτοῦν ἀριθμοὶ ἐλάσσονες δεκάδος οἷον οἱ Β Γ ∠ Ε, καὶ δέον ἔστω τὸν ἐκ τῶν Α Β Γ ∠ Ε στερεὸν εἰπεῖν. Ἔστω γὰρ καθʼ ὃν μετρεῖται ὁ Α ὑπὸ τῆς δεκάδος ὁ Ζ, τουτέστιν ὁ πυθμὴν τοῦ Α, καὶ εἰλήφθω ὁ ἐκ τῶν Ζ Β Γ ∠ Ε στερεὸς καὶ ἔστω ὁ Η· λέγω ὅτι ὁ διὰ τῶν Α Β Γ ∠ Ε στερεὸς δεκάκις εἰσὶν οἱ Η. Καὶ ἔστι φανερὸν διὰ τῶν ἀριθμῶν τοῦ γὰρ Α ὑποκειμένου, φέῤ εἰπεῖν, μονάδων κ΄ καὶ τοῦ Β μονάδων γ΄ καὶ τοῦ Γ μονάδων δ΄ καὶ τοῦ ∠ μονάδων ε΄ καὶ τοῦ Ε μονάδων Ϛ΄, ὁ ἐξ αὐτῶν στερεὸς γίνεται μονάδες ζσ΄. ἀλλὰ καὶ τοῦ Ζ ὄντος μονάδων β΄, ὅς ἐστι πυθμὴν τοῦ Α, ὁ ἐκ τούτου καὶ τῶν Β Γ ∠ Ε στερεὸς δεκάκις γενόμενος ἔσται μονάδες ζσ΄, ἴσος τῷ ἐκ τῶν Α Β Γ ∠ Ἑ στερεῷ. τὸ δὲ γραμμικὸν ὑπὸ τοῦ Ἀπολλωνίου δέδεικται.

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Pappus Alexandrinus, Synagoge, ed. Friedrich Hultsch. 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/tlg2032.tlg001.local001/.