Pappus Alexandrinus
,
Mathematical Collection, Book 8
,
1876
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id.000154
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1072
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μεταξὺ τῆς ΒΕ εὐθείας καὶ τῆς ΒΚΓ περιφερείας· τοῦτο
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γὰρ πειράζοντες αἰεὶ καὶ μετάγοντες τὸ κανόνιον ῥᾳδίως
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ποιήσομεν. </
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<
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id
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id.000155
">γεγονέτω δή, καὶ ἐχέτω θέσιν τὴν ΑΗΘΚ,
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ὥστε ἴσας εἶναι τὰς ΗΘ ΘΚ· λέγω ὅτι ὁ ἀπὸ τῆς ΒΔ
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κύβος πρὸς τὸν ἀπὸ τῆς ΔΘ κύβον λόγον ἔχει τὸν ἐπιταχ-
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5
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θέντα, τουτέστιν τὸν τῆς ΒΔ πρὸς ΔΕ.
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<
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<
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id
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id.000156
">Νοείσθω γὰρ ὁ κύκλος προσαναπεπληρωμένος, καὶ
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7
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ἐπιζευχθεῖσα ἡ ΚΔ ἐκβεβλήσθω ἐπὶ τὸ Λ, καὶ ἐπεζεύχθω
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8
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ἡ ΛΗ· παράλληλος ἄρα ἐστὶν τῇ ΒΔ διὰ τὸ ἴσην εἶναι
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9
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τὴν μὲν ΚΘ τῇ ΘΗ, τὴν δὲ ΚΔ τῇ ΔΛ. </
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<
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id
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id.000157
">ἐπεζεύχθω δὴ
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10
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καὶ ἥ τε ΑΛ καὶ ἡ ΛΓ. </
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<
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id
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">ἐπεὶ οὖν ὀρθή ἐστιν ἡ ὑπὸ
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ΗΑΛ ἐν ἡμικυκλίῳ καὶ κάθετος ἡ ΑΜ, ἔστιν ἄρα ὡς τὸ
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12
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ἀπὸ ΛΜ πρὸς τὸ ἀπὸ ΜΑ, τουτέστιν ὡς ἡ ΓΜ πρὸς ΜΑ,
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οὕτως τὸ ἀπὸ ΑΜ πρὸς τὸ ἀπὸ ΜΗ. </
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<
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id
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id.000159
">κοινὸς προσκείσθω
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λόγος ὁ τῆς ΑΜ πρὸς ΜΗ· ὁ ἄρα συγκείμενος ἔκ τε τοῦ
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15
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τῆς ΓΜ πρὸς ΜΑ καὶ τοῦ τῆς ΑΜ πρὸς ΜΗ, τουτέστιν
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16
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ὁ τῆς ΓΜ πρὸς ΜΗ, λόγος ὁ αὐτός ἐστιν τῷ συγκειμένῳ
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ἔκ τε τοῦ τοῦ ἀπὸ τῆς ΑΜ πρὸς τὸ ἀπὸ τῆς ΜΗ καὶ ἐκ
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τοῦ τῆς ΑΜ πρὸς ΜΗ. </
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<
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id
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id.000160
">ὁ δὲ συγκείμενος ἔκ τε τοῦ τοῦ
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19
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ἀπὸ τῆς ΑΜ πρὸς τὸ ἀπὸ τῆς ΜΗ καὶ τοῦ τῆς ΑΜ πρὸς
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20
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ΜΗ ὁ αὐτός ἐστιν τῷ λόγῳ ὃν ἔχει ὁ ἀπὸ τῆς ΑΜ κύβος
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lb
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21
"/>
πρὸς τὸν ἀπὸ τῆς ΜΗ κύβον· καὶ ὁ τῆς ΓΜ ἄρα πρὸς
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τὴν ΜΗ λόγος ὁ αὐτός ἐστιν τῷ λόγῳ τοῦ ἀπὸ τῆς ΑΜ
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23
"/>
κύβου πρὸς τὸν ἀπὸ τῆς ΜΗ κύβον. </
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<
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id
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id.000161
">ἀλλ' ὡς μὲν ἡ ΓΜ
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πρὸς ΜΗ, οὕτως ἡ ΓΔ πρὸς ΔΕ, τουτέστιν ἡ ΒΔ πρὸς
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ΔΕ, ὡς δὲ ἡ ΑΜ πρὸς ΜΗ, οὕτως ἡ ΑΔ πρὸς ΔΘ,
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τουτέστιν ἡ ΔΒ πρὸς ΔΘ· καὶ ὡς ἄρα ἡ ΒΔ πρὸς ΔΕ,
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τουτέστιν ὡς ὁ δοθεὶς λόγος, οὕτως ὁ ἀπὸ τῆς ΒΔ κύβος
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πρὸς τὸν ἀπὸ τῆς ΔΘ κύβον.
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29
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id
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id.000162
">Πρόβλημα ὀργανικὸν ἐπὶ κυλίνδρου.
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30n
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<
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<
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id
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id.000163
">ιγ#. </
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<
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id
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id.000164
">Τὰ δ' ὀργανικὰ ἐν τοῖς μηχανικοῖς λεγόμενα προ-
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</
chap
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</
body
>
</
text
>
</
archimedes
>