Fabri, Honoré, Tractatus physicus de motu locali, 1646

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          <chap id="N1A407">
            <pb pagenum="160" xlink:href="026/01/192.jpg"/>
            <p id="N1AAF3" type="main">
              <s id="N1AAF5">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              25.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N1AB01" type="main">
              <s id="N1AB03">
                <emph type="italics"/>
              Motus ille non eſt mixtus ex naturali retardator & violento æquabili, vel
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              accelerato
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              ; quia numquam deſtruitur impetus innatus, vt ſæpiùs dictum
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              eſt ſuprà, tùm primo, tùm ſecundo libro, nec in hoc eſt vlla diffi­
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              cultas. </s>
            </p>
            <p id="N1AB12" type="main">
              <s id="N1AB14">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              26.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N1AB20" type="main">
              <s id="N1AB22">
                <emph type="italics"/>
              Non est mixtus ex naturali accelerato & violento æquabili
                <emph.end type="italics"/>
              ; </s>
              <s id="N1AB2B">demonſtra­
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              tur, primò, quia ſub finem motus eſſet maior impetus; </s>
              <s id="N1AB31">quippè nihil de­
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              traheretur violento, ſed multùm accederet naturali; igitur eſſet maior,
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              igitur eſſet maior ictus contra hyp. </s>
              <s id="N1AB39">3. ſecundò, quotieſcunque ſunt duo
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              impetus in eodem mobili ad diuerſas lineas determinati, aliquid illo­
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              rum deſtruitur per Th.141.l.1.tertiò ſi eſſet vterque æquabilis, aliquid
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              deſtrueretur per Theorema 6. igitur potiori iure, ſi impetus naturalis
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              creſcat. </s>
            </p>
            <p id="N1AB44" type="main">
              <s id="N1AB46">Diceret fortè aliquis impetum deſtrui ab aëre, ſed iam ſuprà reſpon­
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              ſum eſt modicum inde imminui; </s>
              <s id="N1AB4C">nec enim vnquam aër in corpore graui
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              deſtruit tantùm impetus, quantùm producitur naturalis ſi ſit acceleratus;
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              alioquin motus deorſum non creſceret contra experientiam, & ſuprà in
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              toto ferè 2.lib. demonſtrauimus. </s>
            </p>
            <p id="N1AB56" type="main">
              <s id="N1AB58">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              27.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N1AB64" type="main">
              <s id="N1AB66">
                <emph type="italics"/>
              Hinc linea huius motus non eſt Parabola
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              ; quia vt ſit Parabola, debet ille
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              motus conſtare vel ex naturali æquabili, & violento retardato per Th.
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              19. vel ex naturali accelerato & violento æquabili per Th. 18. ſed hic
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              motus neuter eſt, non primum per Th. 25. non ſecundum per Theo­
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              rema 26. </s>
            </p>
            <p id="N1AB7C" type="main">
              <s id="N1AB7E">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              28.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N1AB8A" type="main">
              <s id="N1AB8C">
                <emph type="italics"/>
              Hinc reiicies Galileum,
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              qui in dialogis hæc ſemper ſuppoſuit, ſed nun­
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              quam probauit, nec probare vnquam potuit; </s>
              <s id="N1AB97">hoc etiam ſupponunt
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              multi Galilei ſectatores, qui cenſent impetum nunquam deſtrui niſi à
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              reſiſtentia medij; </s>
              <s id="N1AB9F">ſed quæro ab illis quodnam medium deſtruat partem
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              impetus in motu mixto; </s>
              <s id="N1ABA5">nec enim linea motus mixti adæquat duas alias
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              ex quibus quaſi reſultat; </s>
              <s id="N1ABAB">certè hoc non poteſt explicari cum infinitis fetè
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              aliis, niſi dicatur impetum deſtrui ab alio impetu, eo modo quo ſæpè
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              diximus, hoc eſt ne ſit fruſtrà; igitur impetus violentus deſtruitur ab in­
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              nato, non tamen innatus à violento, vt ſæpiùs inculcauimus. </s>
            </p>
            <p id="N1ABB5" type="main">
              <s id="N1ABB7">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              29.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N1ABC3" type="main">
              <s id="N1ABC5">
                <emph type="italics"/>
              Non eſt mixtus ex naturali accelerato eo modo quo acceleratur deorſum per
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              lineam perpendicularem & ex violento retardato
                <emph.end type="italics"/>
              : </s>
              <s id="N1ABD0">Probatur, ſi ita eſt,
                <expan abbr="tãtùm">tantùm</expan>
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              additur naturali, quantum detrahitur violento, imò plùs; </s>
              <s id="N1ABDA">igitur ſemper
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              eſt in eo mobili æqualis vel maior impetus; igitur æqualis eſt ſemper,
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              vel maior ictus contra hyp. </s>
              <s id="N1ABE2">3. adde quod non minùs impeditur ab im­
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              petu violento naturalis motus, quàm ab inclinato plano; </s>
              <s id="N1ABE8">ſed in plano </s>
            </p>
          </chap>
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