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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五</
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s
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<
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形等。</
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<
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<
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<
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邊。</
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丁戊線。</
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旣直角。</
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<
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戊己、兩邊等。</
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<
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戊庚形、為戊乙邊上直角方形也。</
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兩角等也。</
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<
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<
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<
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己甲戊、兩角必等。</
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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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不在本書。</
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<
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