Ceva, Giovanni, Geometria motus, 1692

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              <s id="s.000072">
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              BI, CN, DG, & inſcripta compoſita ex rectangulis inter ſe
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              pariter æquealtis BL, CR, DI, EN. </s>
              <s id="s.000073">Cum circumſcriptą
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              figura differat ab inſcripta exceſſu, quo rectangulum DG
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              ſuperat BL; (nam reliqua circumſcripta AK, BI, CN, re­
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              liquis inſcriptis æqualia ſunt) ſequitur, exceſſum illum eſſe
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              minorem magnitudine Z. </s>
              <s id="s.000074">Si ergo magnitudo Y ponatur
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              maior magnitudine ALGE pro exceſſu Z, maior etiam erit
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              circumſcripta AK, BI, CN, DG. </s>
              <s id="s.000075">Quòd ſi contrà Y intelli­
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              gatur minor ipſa ALGE ex defectu Z, erit quoque eadem
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              Y minor, quàm inſcripta figura BL, CK, DI, EN. </s>
              <s id="s.000076">Itaque
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              nunc, ſi fieri poteſt, ſit Y maior magnitudine ALGE per ip­
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              ſum exceſſum Z, & intelligantur tot motus, quot ſunt re­
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              ctangula in circumſcripta figura, ſcilicet ſint ipſi motus ab
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              A in B, à B in C, à C in D, & à D in E ſecundum deinceps,
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              temporum imagines AK, BI, CN, DG rectangula, quæ
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              ſint interſe, & propoſitis imaginibus homogeneæ, qui
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              motus erunt proptereà æquabiles. </s>
              <s id="s.000077">His poſitis, tempus
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              per FM iuxta imaginem MH ad tempus per AB iuxta ima­
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              ginem rectangulum AK eandem habet rationem, quam re­
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              ctangulum MH ad rectangulum AK, ſimiliter idem tem­
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              pus per FM ſecundùm ipſam imaginem rectangulum MH
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              ad ſingula reliqua tempora per BC, CD, DE imaginibus
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              deinceps rectangulis BI, CN, DG habet eandem rationem,
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              quam rectangulum MH ad ſingula eodem ordine rectan­
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              gula BI, CN, DG. </s>
              <s id="s.000078">Quo circa totidem rectangula ex MH,
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              quot ſunt illa, ex quibus conſtat circumſcripta figura, ha­
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              bebunt ad ea ipſa circumſcripta rectangula, ſeu ad eandem
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              circumſcriptam figuram AK, BI, CN, DG eandem ratio­
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              nem, quam totidem tempora eiuſdem imaginis MH ad ſi­
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              mul tempora, quorum imagines ſunt illa ipſa circumſcripta
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              rectangula AK, BI, CN, DG. </s>
              <s id="s.000079">Quare etiam vnicum re­
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              ctangulum MH ad circumſcriptam figuram AK, BI, CN,
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              DG erit in eadem ratione, in quo vnicum tempus per FM
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              iuxta imaginem MH ad omnia ſimul illa tempora iuxtą </s>
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          </chap>
        </body>
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