Descartes, René, Renati Des-Cartes principia philosophiae

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                <pb pagenum="70"/>
              dinis in C, B in contratiam partem reflecteretur, &
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              motum omnem ſuum retineret. </s>
              <s>Atque hi exceſſus ita
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              computantur: ſi C eſſet duplo majus qum B, & B non
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              moveretur duplo celeriús qum C, ipſum non pelleret,
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              ſed in contrariam partem reflecteretur; ſi verò
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              quàm duplo celeriús moveretur, ipſum pelleret. </s>
              <s>
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              Nempe, ſi C haberet tantúm duos gradus celeritatis, &
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              B haberet quinque, demerentur duo gradus ex B, qui
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              tranſlati in C unum tantúm gradum eſſicerent, quia
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              C eſt duplo majus qum B: quo fieret ut duo
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              B & C cum tribus gradibus celeritatis poſtea move­
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              rentur; & ita de caeteris eſt judicandum. </s>
              <s>Nec iſta egent
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              probatione, quia per ſe ſunt manifeſta. </s>
            </p>
            <p type="margin">
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              LII.
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              Septima. </s>
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              25</s>
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              5</s>
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              10</s>
            </p>
            <p type="main">
              <s>
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              Sed quia nulla in mundo corpora eſſe poitunt à re­
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              liquis omnibus ita diviſa, & nulla circa nos eſſe
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              planè dura, ide multò difficiliús iniri poteſt calculus,
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              ad determinandum quantum cujuſque corporis motus
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              ob aliorum occurſum mutetur. </s>
              <s>Simul enim habenda
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              eſt ratio eorum omnium, qu illud circumquaque con­
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              tingunt, eaque, quantum ad hoc, valde
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              ha­
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              bent effectus, prout ſunt dura vel fluida: quorum
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              ideò diverſitas in quo conſiſtat, hic eſt quaerendum. </s>
            </p>
            <p type="margin">
              <s>
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              LIII.
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              Harum regularum
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              uſum eſſe diſſicilem,
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              propterea quòd
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              unumquodquè cor­
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              pus ¬à multis ſimul
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              tangatur. </s>
            </p>
            <p type="margin">
              <s>
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              15</s>
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            <p type="margin">
              <s>
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              20</s>
            </p>
            <p type="main">
              <s>
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              Nempe, ſenſu teſte, non aliam agnoſcimus, quàm
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              quòd fluidorum partes facilè recedant ex locis ſuis,
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              atque ide manibus noſtris verſus illa ſe
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              non reſiſtant; contràautem durorum partes ita ſibi
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              mutu cohaerent, ut non ſine vi, quae ſufficiat ad iſtam
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              illorum cohaerentiam ſuperandam, ſejungi poſſint. </s>
              <s>Et
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              ulteriús inveſtigantes quî fiat ut quaedam corpora ſine
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              ullâ difficultate loca ſua corporibus aliis relinquant,
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              alia non item: facilè advertimus ea quae jam ſunt </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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