Euclides 歐幾里得, Ji he yuan ben 幾何原本, 1966

List of thumbnails

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21 (一) 		22
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23 		24
24 (二)
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25 (三) 		26
26 (四)
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27 (五) 		28
28 (六)
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29 (七) 		30
30 (八)
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          <div xml:id="N10950" level="2" n="1" type="chapter">
            <div xml:id="N10954" level="3" n="1" type="chapterhead">
              <div xml:id="N10A43" level="4" n="5" type="definition" type-free="界">
                <pb n="25" file="0025" o="三" o-norm="3" rhead="幾何原本　卷一之首" xlink:href="http://libcoll.mpiwg-berlin.mpg.de/libview?url=/mpiwg/online/permanent/library/02NT95YF/pageimg&mode=imagepath&pn=25"/>
                <p xml:id="N10A69">
                  <s xml:id="N10A6A" xml:space="preserve">想一線橫行、所留之迹卽成面也。</s>
                </p>
                <figure xml:id="N10A6D" number="4">
                  <image file="0025-01"/>
                  <variables xml:id="N10A6E" xml:space="preserve">乙甲丁丙</variables>
                </figure>
              </div>
              <div xml:id="N10A70" level="4" n="6" type="definition" type-free="界">
                <head xml:id="N10A76" xml:space="preserve">第六界</head>
                <figure xml:id="N10A78" number="5">
                  <image file="0025-02"/>
                  <variables xml:id="N10A79" xml:space="preserve">甲</variables>
                </figure>
                <figure xml:id="N10A7B" number="6">
                  <image file="0025-03"/>
                </figure>
                <p indent="-1" xml:id="N10A7D">
                  <s xml:id="N10A7F" xml:space="preserve">面之界。</s>
                  <s xml:id="N10A82" xml:space="preserve">是線。</s>
                </p>
              </div>
              <div xml:id="N10A85" level="4" n="7" type="definition" type-free="界">
                <head xml:id="N10A8B" xml:space="preserve">第七界</head>
                <p indent="-1" xml:id="N10A8D">
                  <s xml:id="N10A8F" xml:space="preserve">平面。</s>
                  <s xml:id="N10A92" xml:space="preserve">一面平。</s>
                  <s xml:id="N10A95" xml:space="preserve">在界之內。</s>
                </p>
                <p xml:id="N10A98">
                  <s xml:id="N10A99" xml:space="preserve">平面中間線。</s>
                  <s xml:id="N10A9C" xml:space="preserve">能遮兩界。</s>
                </p>
                <p xml:id="N10A9F">
                  <s xml:id="N10AA0" xml:space="preserve">平面者。</s>
                  <s xml:id="N10AA3" xml:space="preserve">諸方皆作直線。</s>
                </p>
                <p indent="-1" xml:id="N10AA6">
                  <s xml:id="N10AA8" xml:space="preserve">試如一方面。</s>
                  <s xml:id="N10AAB" xml:space="preserve">用一直繩施於一角。</s>
                  <s xml:id="N10AAE" xml:space="preserve">繞面運轉。</s>
                  <s xml:id="N10AB1" xml:space="preserve">不礙不空。</s>
                  <s xml:id="N10AB4" xml:space="preserve">是平面也。</s>
                </p>
                <p indent="-1" xml:id="N10AB7">
                  <s xml:id="N10AB9" xml:space="preserve">若曲面者。</s>
                  <s xml:id="N10ABC" xml:space="preserve">則中間線不遮兩界。</s>
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