Ceva, Giovanni, Geometria motus, 1692

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              ad rectangulum AB in BC. quod erat demonſtrandum
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              primo loco. </s>
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            <p type="margin">
              <s id="s.000225">
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              Def.
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              8.
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              huius.
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            <p type="margin">
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              Def:
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              2.
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              huius.
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            <p type="margin">
              <s id="s.000227">
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              pr.
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              2.
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              huius.
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              </s>
            </p>
            <p type="margin">
              <s id="s.000228">
                <margin.target id="marg47"/>
                <emph type="italics"/>
              Def.
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              2.
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              huius.
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              </s>
            </p>
            <p type="margin">
              <s id="s.000229">
                <margin.target id="marg48"/>
                <emph type="italics"/>
              pr.
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              1.
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              huius.
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              </s>
            </p>
            <p type="margin">
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                <margin.target id="marg49"/>
                <emph type="italics"/>
              pr.
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              4.
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              huius.
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              </s>
            </p>
            <p type="margin">
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              Cor. </s>
              <s id="s.000232">pr.
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              3.
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              hu­
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              ius.
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              <s id="s.000233">2. Si verò propoſitæ figuræ ſint quæcunque auuerſæ
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              DAE, QPLMQ poterunt hæ reuocari ad quaſdam alias
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              FKG, RSZX, quæ ſint inter eaſdem parallelas, queis com­
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              prehenduntur propoſitæ figuræ, ad eo vt exiſtentibus re­
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              ctis angulis KFG, RXZ ſint ipſæ binæ figuræ ab ijſdem pa­
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              rallelis interceptæ. </s>
              <s id="s.000234">inter ſe æqualiter analogæ hoc eſt du­
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              ctis æquidiſtantibus, vt viſum fuerit IHBC, VTNO, ſint
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              ſemper interiectæ lineæ IH, BC, & VT, NO æquales: hoc
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              modo non tantùm liquet figuras FKG, DAE, nec noņ
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              RSZX, PQML æquales inter ſe eſſe, verùm etiam FKG ad
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              IKH eſſe in eadem ratione, in qua QPLMQ ad QPNOQ,
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              quamobrem ex prima parte, rectangulum ZX in RM ad
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              figuram SRXZS, hoc eſt rectangulum LM in altitudinem
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              figuræ QPLMQ ad hanc ipſam figuram habebit eandem
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              rationem, quam figura FKG ad rectangulum KF in FG,
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              vel quam figura DAE ad rectangulum DE in altitudinem
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              eiuſdem huius figuræ DAE; quo circa conſtat omne pro­
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              poſitum. </s>
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            <p type="margin">
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              Tab.
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              2.
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              Fig.
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              8.</s>
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            <p type="main">
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              Corollarium.
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              Patet in prima parte repertum eſſe rectangulum FD iņ
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              DN æquale figuræ GFDEG, licèt hæc immenſe longitudinis
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              ſit versùs G, & ob id manifeſtum eſt, quòd quamuis aliquą
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              figura ſit ſinè fiue longa, non ideo ſemper magnitudinem ha­
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              bet infinitam. </s>
              <s id="s.000238">Et ſimul illud conſtat, vbi vna auuerſarum, ſeu
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              vbi imago velocitatum, aut temporis ſit magnitudine termi­
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              nata, etiam altera auuerſarum, vel imaginum erit huiuſ­
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              modi &c.
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              </s>
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