Fabri, Honoré, Tractatus physicus de motu locali, 1646

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        <body>
          <chap id="N1137F">
            <p id="N13145" type="main">
              <s id="N131E0">
                <pb pagenum="32" xlink:href="026/01/064.jpg"/>
              qui reuera habet effectum formalem ſecundarium ad intra, ſcilicet rare­
                <lb/>
              factionem, quæ eſt mutatio extenſionis; </s>
              <s id="N131EA">quemadmodum motus eſt mu­
                <lb/>
              tatio loci, vel vbicationis; </s>
              <s id="N131F0">igitur cum hoc | non obſtante, calor pro­
                <lb/>
              ducat calorem ad extra; cur impetus non producit impetum? </s>
              <s id="N131F6">cuius pro­
                <lb/>
              ductionem concedis virtuti corporum reſiſtitiuæ, id eſt vnioni, impe­
                <lb/>
              netrabilitati, & cæteris huiuſmodi modorum ſuperfluorum quiſquiliis;
                <lb/>
              de quibus plurimi tecum contendunt. </s>
            </p>
            <p id="N13200" type="main">
              <s id="N13202">
                <emph type="center"/>
                <emph type="italics"/>
              Scholium.
                <emph.end type="italics"/>
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N1320E" type="main">
              <s id="N13210">Obſeruabis nonnullas eſſe difficultates, quæ communes ſunt etiam
                <lb/>
              illi ſententiæ, quam ſequuntur ij, qui exiſtimant impetum ad extra
                <lb/>
              produci à corpore impacto; quas tamen facilè ſoluemus infrà in conti­
                <lb/>
              nuata noſtrorum Theorematum ſerie. </s>
            </p>
            <p id="N1321A" type="main">
              <s id="N1321C">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              41.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N13228" type="main">
              <s id="N1322A">
                <emph type="italics"/>
              Aliquis impetus non producitur ab alio impetu.
                <emph.end type="italics"/>
              </s>
              <s id="N13231"> Probatur, quia aliquis
                <lb/>
              impetus producitur ad intra à potentia motrice, vt patet. </s>
              <s id="N13236">2. cum non
                <lb/>
              detur progreſſus in infinitum, nec impetus idem producatur à ſe ipſo, ad
                <lb/>
              aliquem tandem vltimum ſeu primum deueniendum eſt, qui ab alio im­
                <lb/>
              petu non producatur. </s>
            </p>
            <p id="N1323F" type="main">
              <s id="N13241">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              42.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N1324D" type="main">
              <s id="N1324F">
                <emph type="italics"/>
              Impetus producitur ſemper ad extra ab alio impetu.
                <emph.end type="italics"/>
              </s>
              <s id="N13256"> Quia cum ſemper
                <lb/>
              ad illius productionem requiratur applicatio alterius impetus; certè
                <lb/>
              non eſt ponenda alia cauſa per Ax. 11. </s>
            </p>
            <p id="N1325E" type="main">
              <s id="N13260">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              43.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N1326C" type="main">
              <s id="N1326E">
                <emph type="italics"/>
              Hinc impetus habet duplex munus cauſæ; </s>
              <s id="N13274">ſcilicet cauſæ exigentis ad intra
                <lb/>
              & efficientis ad extra
                <emph.end type="italics"/>
              ; vtrumque patet ex dictis. </s>
            </p>
            <p id="N1327D" type="main">
              <s id="N1327F">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              44.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N1328B" type="main">
              <s id="N1328D">
                <emph type="italics"/>
              Impetus agit tantùm ad extra, vt tollat impedimentum motus
                <emph.end type="italics"/>
              ; </s>
              <s id="N13296">cum enim
                <lb/>
              motus ſit finis intrinſecus impetus; </s>
              <s id="N1329C">certè ſi nihil impediret motum,
                <lb/>
              haud dubiè gauderet impetus ſuo fine; </s>
              <s id="N132A2">igitur fruſtrà quidquam aliud
                <lb/>
              deſideraret; </s>
              <s id="N132A8">præterea licèt applicetur à tergo aliud mobile; </s>
              <s id="N132AC">non tamen
                <lb/>
              propterea in eo producit, vt conſtat experientiâ; </s>
              <s id="N132B2">denique cum tan­
                <lb/>
              tùm impetum cognoſcamus per motum; </s>
              <s id="N132B8">cum nequidem eſſet impetus,
                <lb/>
              ſi non eſſet motus, per Th. 17. certè totus eſt impetus propter motum
                <lb/>
              qui eſt eius finis; </s>
              <s id="N132C0">igitur non agit niſi propter motum: </s>
              <s id="N132C4">ſed non poteſt
                <lb/>
              excogitari, quid faciat propter motum, dum agit, niſi dicamus ideo
                <lb/>
              tantùm agere, vt tollatur impedimentum; cum certum ſit corpus im­
                <lb/>
              mobile, in quod impingitur aliud mobile, impedire eius motum. </s>
            </p>
            <p id="N132CE" type="main">
              <s id="N132D0">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              45.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N132DC" type="main">
              <s id="N132DE">
                <emph type="italics"/>
              Hinc non ſimul agit impetus in orbem ſed tantùm per lineam
                <lb/>
              ſui motus; </s>
              <s id="N132E6">cui ſi nullum corpus occurrit reuerà non agit,
                <emph.end type="italics"/>
              Ratio eſt; </s>
              <s id="N132ED">quia li­
                <lb/>
              cèt aliud corpus mobili admoueatur in alia linea; </s>
              <s id="N132F3">cum non impediat
                <lb/>
              eius motum, vt ſuppono; </s>
              <s id="N132F9">cum agat tantùm impetus ad extra, vt tollat, </s>
            </p>
          </chap>
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