Ceva, Giovanni, Geometria motus, 1692

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              16.
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              huius.
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              4.
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              huius,
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            <p type="margin">
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              16.
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              huius.
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            <p type="margin">
              <s id="s.000658">
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              Def.
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              .3.
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              primi
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              huius.
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            </p>
            <p type="margin">
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              & Def.
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              1.
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              hu­
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              ius vnà cum
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              pr.
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              4.
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              huius.
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              PROP. XXII. THEOR. XVIII.
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              <s id="s.000661">SInt nunc CE, HL communes ſectiones imaginum ſim­
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              plicium ABC, GLH, ſi extenderentur cum ſujs æqua­
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              libus, ac ſimilibus coeuntibus figuris. </s>
              <s id="s.000662">Eſto pariter M cen­
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              trum grauitatis imaginis ABC, et N grauitatis alterius ima­
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              ginis GLH; actis demùm MO, NP perpendicularibus ad
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              ipſas CE, HL. Dico, ſpatium accelerati motus ab imagine
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              ſimplici ABC ad
                <expan abbr="ſpatiũ">ſpatium</expan>
              accelerati alterius motus ab ima­
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              gine ſimplici GLH componi ex ratione imaginis ABC ad
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              imaginem GLH, & ex ea perpendicularis MO ad perpen­
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              dicularem NP. </s>
              <s id="s.000663">Cum hæc ipſa ſpatia ſint oſtenſa, vt ſoli­
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              da à figuris ABC, GLH; hæc verò ſunt vt momenta ipſa­
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              rum figurarum ſuſpenſarum ex MO, NP. </s>
              <s id="s.000664">Ergo quemad­
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              modum momenta iſta nectuntur ex rationibus figurarum
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              tanquam magnitudinum ABC ad LGH, & diſtantiarum
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              MO ad NP, ita pariter ex his nectentur propoſita ſpatia. </s>
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              Tab.
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              7.
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              Fig.
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              2.</s>
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            <p type="margin">
              <s id="s.000666">
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              21.
                <emph type="italics"/>
              huius.
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              </s>
            </p>
            <p type="margin">
              <s id="s.000667">
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              20.
                <emph type="italics"/>
              huius.
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              </s>
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            <p type="margin">
              <s id="s.000668">
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                <emph type="italics"/>
              Ex mechani­
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              cis.
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            <p type="main">
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              Corollarium.
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                <emph.end type="center"/>
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              Patet communes ſectiones CE, HL eſſe æquidiſtantes ap­
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              plicatis AB, HL, quæ in imaginibus ſumuntur perpendicula­
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              res rectis AC, GH. nam HL est recta, in quam coeunt figura
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              planæ ſimiles, ac æquales.
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            <p type="margin">
              <s id="s.000671">
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                <emph type="italics"/>
              Pr
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              2.
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              primą
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              huius.
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              PROP. XXIV. THEOR. XIX.
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            <p type="main">
              <s id="s.000673">SI imagines ſimplicium motuum fuerint ſimiles, ſimili­
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              terque ſuſpenſæ, imagines velocitatum accelerato­
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              rum motuum erunt in triplicata ratione temporum ſimpli­
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              cium motuum, aut in triplicata homologarum, vel extre­
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              marum velocitatum eorundem ſimplicium motuum. </s>
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            <p type="main">
              <s id="s.000674">Cum centra grauitatum ſimilium imaginum, ſeu figu­
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              </s>
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