Theodosius <Bithynius>; Clavius, Christoph
,
Theodosii Tripolitae Sphaericorum libri tres
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rectis, adhuc theorematis veritas vetineretur: </
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<
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æquales ſinus rectos habent, ſiue ipſi inter ſe æquales ſint, ſiue æquales duobus re-
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ctis. </
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<
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ijs, quæ in tractatione ſinuum tradidimus.</
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<
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maximi circuli demittatur diuidens angulum bi-
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fariam: </
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<
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dem proportionem, quam ſinus reliquorum duo-
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rum arcuum. </
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<
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dem proportionem habeant, quam ſinus reliquo-
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rum duorum arcuum: </
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gulum bifariam.</
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<
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co ita eſſe ſinum arcus AB, ad ſinum arcus AC, vt eſt, ſinus arcus BD, ad ſi-
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num arcus DC. </
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<
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& eius ſcho
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hum.</
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æquales, & </
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ſinum arcus BD, ita ſinus arcus AC, ad ſinum arcus CD:
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</
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<
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xml:space
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ita ſinus arcus BD, ad ſinum arcus DC. </
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<
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poſitum.</
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<
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ita ſinus arcus BD, ad ſinum arcus DC. </
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<
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xml:space
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A, ſectum eſſe bifariam. </
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<
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vt ſinus arcus AB, ad ſinum arcus BD, ita ſinus arcus AC,
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ad ſinũ arcus CD. </
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<
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xml:space
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angulos ad D, ęquales duobus rectis, & </
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angulos B, C, proportionales, homologiq́; </
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<
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poſitorũ. </
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<
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<
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& eius ſeho
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lium.</
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quales: </
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<
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">Non poſſunt autẽ duobus rectis eſſe æquales, quod angulus A, ſit duo-
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bus rectis minor. </
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<
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ab angulo ſphærici trianguli ad baſim, &</
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<
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<
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