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 卷一之首
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http://libcoll.mpiwg-berlin.mpg.de/libview?url=/mpiwg/online/permanent/library/02NT95YF/pageimg&mode=imagepath&pn=40
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甲丁乙。</
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<
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<
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<
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分等也。</
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">若所加之度各不等。</
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之。</
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己丁丙</
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">若所加之度等。</
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">與元所贏之度等。</
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乙大於己丁。</
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