Fabri, Honoré, Tractatus physicus de motu locali, 1646
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              ciatur mobile per Poſtulatum, etiam mouetur ſeparatum à potentia mo­
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              trice per hypoth. </s>
              <s id="N155BA">6. igitur non conſeruatur à potentia motrice per Ax.
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              10. igitur nec à causâ primò productiua. </s>
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              Theorema
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              145.
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              Hinc ab alia causâ conſeruari neceſſe eſt impetum
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              : Probatur, quia impe­
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              tus non eſt à ſe, quia deſtruitur aliquando per Ax. 14. igitur conſeruatur
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              ab alio per Ax.14. num. </s>
              <s id="N155DD">1. non à cauſa primò productiua per Th.144.igi­
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              tur ab alia, eaque applicata per Ax. 10. quæcumque tandem illa ſit, ali­
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              quando cauſam primam eſſe demonſtrabimus; </s>
              <s id="N155E7">nunc verò ſufficiat dixiſ­
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              ſe dari aliquam cauſam reuerâ applicatam, quæ ipſum conſeruat impe­
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              tum; immò ex hac ipſa rerum conſeruatione argumentum aliquando
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              ducemus, quo Deum ipſum exiſtere demonſtrabimus. </s>
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              Theorema
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              146.
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              </s>
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              Si impetus conſeruaretur à cauſa primò productiua, nunquam deſtruere­
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              tur, quamdiu eſſet applicata.
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              <s id="N1560A"> Demonſtratur, quia eſſet cauſa neceſſaria
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              (nam de hac ipſa loquor) igitur ſemper ageret, igitur ſemper con­
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              ſeruaret, quod eſt contra experientiam; </s>
              <s id="N15612">nam reuerâ impetus pro­
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              ductus deorſum à corpore graui motu naturaliter accelerato deſtruitur,
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              vt patet; </s>
              <s id="N1561A">præterea ſi corpus graue conſeruaret impetum primò produ­
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              ctum, non produceret nouum contra experientiam; </s>
              <s id="N15620">quippe cauſa ne­
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              ceſſaria non plùs agit vno inſtanti quàm alio, per Ax.12. adde quod im­
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              petus deſtruitur ad exigentiam alterius, quidquid tandem illud ſit per
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              Ax.14. num.2. & 3. ſed cauſa primò productiua impetus non nouit rerum
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              exigentiam; </s>
              <s id="N1562C">igitur illi facere ſatis non poteſt; ex hoc etiam capite cau­
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              ſæ primæ exiſtentiam ſuo loco demonſtrabimus. </s>
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              Scholium.
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              </s>
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              <s id="N15642">Obſeruabis primò rem quamlibet ideo deſtrui, quia ceſſat cauſa con­
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              ſeruans illam conſeruare; </s>
              <s id="N15648">quippe quod deſtruitur eo inſtanti dicitur de­
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              ſtrui, quo primò non eſt, ſeu quo incipit primò non eſſe; atqui incipit
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              primò non eſſe ſeu deſinit eſſe, cum deſinit conſeruari. </s>
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              <s id="N15652">Secundò obſeruabis præclarum naturæ inſtitutum, quod etiam ex ipſis
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              hypotheſibus conſtat, quo fit vt qualitates quæ carent contrario à cauſa
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              primò productiua conſeruentur, vt lumen; </s>
              <s id="N1565A">ne ſi ab alia conſeruarentur,
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              deſtruerentur vmquam; </s>
              <s id="N15660">cum earum deſtructionem nihil exigeret per
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              Ax.14.n.2. & 3. at verò qualitates, quæ contrarias habent: </s>
              <s id="N15666">ſi quæ ſunt,
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              à cauſa primò productiua minimè conſeruantur; </s>
              <s id="N1566C">cum enim ideo con­
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              trarium dicatur deſtruere contrarium, quia exigit eius deſtructionem, id
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              eſt, ne conſeruetur amplius; </s>
              <s id="N15674">certè vt cauſa conſeruans ceſſet conſeruare,
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              debet noſſe illam exigentiam; atqui nulla cognitione pollent cauſæ illæ
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              motrices naturales, de quibus eſt quæſtio. </s>
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              Theorema
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              147.
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              </s>
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            <p id="N1568A" type="main">
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              Tamdiu conſeruatur impetus, quamdiu nihil exigit eius destructionem
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              ; </s>
              <s id="N15695">quia
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              deſtruitur tantùm ad exigentiam alicuius, quidquid tandem illud ſit, de </s>
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