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 卷一
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<
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<
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<
s
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設兩形幷、等。</
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乙
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己丙丁戊</
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線相聯末於丙丁戊角、丙戊丁角、各作一角。</
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遇於己。</
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<
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<
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<
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">本篇六</
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<
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<
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<
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">而
<
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幷之、又與丙戊、丙丁、上所作兩直角方形幷、等。</
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>
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<
s
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xml:space
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<
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<
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形。</
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<
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xml:id
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xml:space
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">與兩腰線上、所作兩直角方形幷、等矣。</
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<
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<
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<
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丁戊線上、所作直角方形。</
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<
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<
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<
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</
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<
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<
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<
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