Fabri, Honoré, Tractatus physicus de motu locali, 1646

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      <text>
        <body>
          <chap id="N1137F">
            <p id="N129B6" type="main">
              <s id="N129DB">
                <pb pagenum="24" xlink:href="026/01/056.jpg"/>
              tùm res in vno loco patet; </s>
              <s id="N129E4">vel enim à cauſa prima vel ab aliqua 2. pro­
                <lb/>
              ducitur; </s>
              <s id="N129EA">ſi à 2. ergo ab aliqua aplicata; </s>
              <s id="N129EE">igitur ex ſuppoſitione quòd il­
                <lb/>
              la cauſa 2. in vno tantùm loco producta ſit, vni tantum applicari po­
                <lb/>
              teſt; </s>
              <s id="N129F6">quod autem cauſa 1. in pluribus locis naturaliter eundem effectum
                <lb/>
              non producat, certum eſt, & demonſtrabimus in Metaphyſ. quia ſin­
                <lb/>
              gulis effectibus ſingulæ ſufficiunt actiones; </s>
              <s id="N129FE">ſingulis terminis ſingulæ
                <lb/>
              viæ; </s>
              <s id="N12A04">immò hoc requiri videtur, ſeu ſpectare ad huius vniuerſitatis or­
                <lb/>
              dinem; </s>
              <s id="N12A0A">quippe ſi res eadem in pluribus locis eſſet; cur potius in duo­
                <lb/>
              bus quam in tribus? </s>
              <s id="N12A10">deinde multiplex iure poſſet exiſtimari; </s>
              <s id="N12A14">denique
                <lb/>
              quod vnum eſt in entitate creata, ſeu dependente ab eadem cauſa, vnum
                <lb/>
              eſt etiam in dependentia; </s>
              <s id="N12A1C">quæ eſt actio, per quam dependet; ſed de his
                <lb/>
              aliàs. </s>
            </p>
            <p id="N12A22" type="main">
              <s id="N12A24">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              31.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N12A30" type="main">
              <s id="N12A32">
                <emph type="italics"/>
              Impetus non producitur in eo mobili, quod moueri non poteſt à potentia
                <lb/>
              motrice applicata, licèt à fortiori moueri poſſit.
                <emph.end type="italics"/>
              </s>
              <s id="N12A3B"> Probatur, quia impetus
                <lb/>
              eſt tantùm propter motum, qui eius effectus eſt, & finis, per Th. 15.
                <lb/>
              & 16. Igitur vbi non eſt motus, fruſtrà eſt impetus; </s>
              <s id="N12A43">ſed quod fruſtrà
                <lb/>
              eſt, non eſt; id eſt non eſt, quod fruſtrà eſſet, ſi eſſet per Ax. 6. Exci­
                <lb/>
              pio tamen impetum naturalem innatum, qui nunquam eſt fruſtrà, vt
                <lb/>
              dictum eſt ſuprà in Theorem. </s>
              <s id="N12A4E">17. adde quod non poteſt cognoſci
                <lb/>
              impetus, niſi vel ex motu, vel ex ictu, vel ex contrario niſu, vel
                <lb/>
              impulſu; </s>
              <s id="N12A56">ſed nihil horum cernitur in rupe quam ferio; </s>
              <s id="N12A5A">Igitur non
                <lb/>
              eſt dicendum in ea produci impetum, cuius rationem afferemus infrà; </s>
              <s id="N12A60">
                <lb/>
              nunc ſatis eſt Ax. 3. id manifeſtè probari; </s>
              <s id="N12A65">nam qui diceret in rupe im­
                <lb/>
              mobili impetum imprimi; </s>
              <s id="N12A6B">certè poſitiuo argumento probare tenere­
                <lb/>
              tur, quod tantùm duci poteſt, vel ab experimento; </s>
              <s id="N12A71">atqui hîc nullum eſt; </s>
              <s id="N12A75">
                <lb/>
              vel à neceſſitate, quæ nulla eſt; </s>
              <s id="N12A7A">vel ex alio quocumque capite, quod
                <lb/>
              nullum excogitari poteſt; </s>
              <s id="N12A80">ſed maiorem lucem huic Th. 3. ex proximè
                <lb/>
              ſequentibus accerſemus; </s>
              <s id="N12A86">nec eſt quòd aliqui dicant produci impetum
                <lb/>
              inefficacem; </s>
              <s id="N12A8C">qui cum fruſtrà ſit, ſi eſt, ex nullo capite probari poteſt: </s>
              <s id="N12A90">ad­
                <lb/>
              de quòd deſtruitur impetus, ne ſit fruſtrà; </s>
              <s id="N12A96">Igitur non producitur, ne ſit
                <lb/>
              fruſtrà; </s>
              <s id="N12A9C">nam conſeruatio eſt vera actio, vt dicemus ſuo loco; </s>
              <s id="N12AA0">Igitur ſi
                <lb/>
              hæc non ponitur, ne aliquid ſit fruſtrà; </s>
              <s id="N12AA6">etiam 1. productio poni non
                <lb/>
              debet; vnde commentum illud impetus inefficacis prorſus inefficax eſt. </s>
            </p>
            <p id="N12AAC" type="main">
              <s id="N12AAE">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              32.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N12ABA" type="main">
              <s id="N12ABC">
                <emph type="italics"/>
              Ideo potentia motrix non producit impetum in prædicta rupe.
                <emph.end type="italics"/>
              v.g.
                <emph type="italics"/>
              quia de­
                <lb/>
              bilior eſt.
                <emph.end type="italics"/>
              </s>
              <s id="N12ACB"> Probatur, & explicatur; quippe debilior potentia minorem ef­
                <lb/>
              fectum producit per. </s>
              <s id="N12AD0">Ax. 13.
                <emph type="italics"/>
              num.
                <emph.end type="italics"/>
              2. igitur pauciores partes impetus
                <lb/>
              æquales vni certæ per idem
                <emph type="italics"/>
              num.
                <emph.end type="italics"/>
              1. igitur ſi ſint plures partes ſubiecti
                <lb/>
              mobilis, ſeu rupis, quàm impetus; </s>
              <s id="N12AE4">cum vna pars impetus duobus parti­
                <lb/>
              bus ſubiecti ineſſe non poſſit; </s>
              <s id="N12AEA">licet plures vni ſimul in eſſe poſſint; </s>
              <s id="N12AEE">
                <lb/>
              non eſt mirum ſi nullus impetus producatur; </s>
              <s id="N12AF3">cum non poſſint tot partes
                <lb/>
              illius produci, quot eſſent neceſſariæ; vt ſaltem ſingulæ ſingulis ſubie­
                <lb/>
              cti, ſeu rupis partibus diſtribuerentur. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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