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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七六
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rhead
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幾何原本 卷一
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xlink:href
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http://libcoll.mpiwg-berlin.mpg.de/libview?url=/mpiwg/online/permanent/library/02NT95YF/pageimg&mode=imagepath&pn=98
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方形。</
s
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<
s
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xml:space
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<
s
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xml:space
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">與丙等、而有丁角。</
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<
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<
s
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為一平行方形。</
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<
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xml:space
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">與甲、乙、丙、幷形等、而有丁角。</
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s
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">俱倣此法。</
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159
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<
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<
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丙乙甲</
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<
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等。</
s
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<
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">而己庚、
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庚癸、為一直線也。</
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<
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庚辛壬癸、皆平行方形也。</
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<
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