Fabri, Honoré, Tractatus physicus de motu locali, 1646

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              <s id="N164D1">
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              corpora grauia motu naturali accelerato deorſum ferantur; </s>
              <s id="N164DA">ſi enim motu
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              ferrentur æquabili, vel eſſet æqualis illi quem initio ſui deſcenſus ha­
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              bent, qui eſt tardiſſimus, vt conſtat ex ipſa ictuum differentia; </s>
              <s id="N164E2">atque
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              ita infinitum ferè tempus ponerent grauia in minimo etiam deſcenſu,
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              quod eſſet maximè incommodum; ſi verò motus ille eſſet æqualis mo­
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              tui v.g. quem acquiſiuit in ſpatio 3. vel 4. perticarum, pondera corpo­
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              rum creſcerent in immenſum, ideſt in ea proportione, qua ictus, qui in­
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              fligitur à corpore graui confecto 4. perticarum ſpatio maior eſt ictu, qui
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              infligitur poſt decurſum minimum omnium ſpatiorum, quod valdè in­
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              commodum eſſet. </s>
            </p>
            <p id="N164F6" type="main">
              <s id="N164F8">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              17.
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              </s>
            </p>
            <p id="N16504" type="main">
              <s id="N16506">
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              Æqualibus temporibus æqualis impetus producitur, ſi ſit eadem applica­
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              tio, idemque impedimentum
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              ; </s>
              <s id="N16511">probatur, quia cauſa huius impetus eſt ne­
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              ceſſaria; ſed eadem cauſa neceſſaria æqualibus temporibus æqualem
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              impetum producit per Ax.3. </s>
            </p>
            <p id="N16519" type="main">
              <s id="N1651B">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              18.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N16527" type="main">
              <s id="N16529">
                <emph type="italics"/>
              Qua proportione creſcit impetus acceleratur motus
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              ; quia quæ proportio­
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              ne creſcit cauſa, etiam creſcit effectus per Ax.2. </s>
            </p>
            <p id="N16534" type="main">
              <s id="N16536">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              19.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N16542" type="main">
              <s id="N16544">
                <emph type="italics"/>
              Hinc æqualibus temporibus in deſcenſu corpus graue acquirit aqualia ve­
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              locitatis, vel accelerationis momenta
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              ; </s>
              <s id="N1654F">hoc ipſum eſt quod definitionis lo­
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              co Galileus in dialogo tertio de motu naturali aſſumit; </s>
              <s id="N16555">quod tamen
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              meo iudicio fuit antè demonſtrandum quàm ſupponendum; quare ſic
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              demonſtramus, quâ proportione creſcit impetus, creſcit motus per Th.
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              18. ſed temporibus æqualibus acquiruntur æquales impetus gradus per
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              Th.17. igitur æqualia velocitatis momenta, vel incrementa. </s>
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            <p id="N16562" type="main">
              <s id="N16564">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              20.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N16570" type="main">
              <s id="N16572">
                <emph type="italics"/>
              Spatia que per curruntur motu æquabili æqualibus temporibus ſunt æqualia
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              ;
                <lb/>
              Probatur per Def.2. </s>
            </p>
            <p id="N1657D" type="main">
              <s id="N1657F">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              21.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N1658B" type="main">
              <s id="N1658D">
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              Duo motus æquabiles, qui durant æqualibus temporibus, ſunt vt ſpatia
                <emph.end type="italics"/>
              ;
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              patet; </s>
              <s id="N16598">cùm enim impetus ſint vt motus per Ax. 2. motus ſunt vt ſpatia;
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              quippe vt ex impetu ſequitur motus, ita ex motu confectum ſpa­
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              tium. </s>
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            <p id="N165A0" type="main">
              <s id="N165A2">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
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              22.
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              </s>
            </p>
            <p id="N165AE" type="main">
              <s id="N165B0">
                <emph type="italics"/>
              Duo motus æquabiles, quibus percurruntur ſpatia æqualia ſunt vt tempora
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              permutande
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              ;, patet, quia velocior eſt, quò percurritur ſpatium æquale
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              minori tempore per Def.2. l. 1. Igitur eò velocior, quò minori tem­
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              pore. </s>
            </p>
            <p id="N165C0" type="main">
              <s id="N165C2">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
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              23.
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              </s>
            </p>
            <p id="N165CE" type="main">
              <s id="N165D0">
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              Spatium, quod percurritur maiori tempore motu æquabili, est maius eo,
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              quod percurritur minori æquè veloci motu in ea ratione, qua vnum tempus
                <emph.end type="italics"/>
              </s>
            </p>
          </chap>
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