Euclides 歐幾里得
,
Ji he yuan ben 幾何原本
,
1966
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21
(一)
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(二)
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(三)
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(四)
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(五)
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(六)
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(七)
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(八)
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幾何原本 卷二
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<
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丁</
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<
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<
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<
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<
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百一大冪、等。</
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<
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">及一分線上直角
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方形幷等。</
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<
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s
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<
s
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s
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s
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<
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<
lb
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偕甲丙、矩線內直角形、及甲丙上直角方形幷等。</
s
>
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