Fabri, Honoré, Tractatus physicus de motu locali, 1646
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              <s id="N12B01">Obſeruabis autem nouum quoddam genús reſiſtentiæ; </s>
              <s id="N12B05">nam ſingulæ
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              partes rupis ab applicata potentiâ aptæ ſunt loco moueri per impreſ­
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              ſum impetum, & maior potentia ſimul omnes loco moueret; </s>
              <s id="N12B0D">at verò
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              omnes ſimul, & coniunctim conſideratæ; </s>
              <s id="N12B13">quatenus ſcilicet vna pars
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              non poteſt moueri ſine alia, & comparatæ cum illa potentia debili di­
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              cuntur habere prædictam reſiſtentiam, quæ ſuperat potentiæ vires; </s>
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              quòd ſcilicet à maiori moueri tantùm poſſint; quia plures partes im­
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              petus poſtulantur, quam ſint eæ, quæ à prædictâ potentiâ poſſunt pro­
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              duci. </s>
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              Theorema
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              33.
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              Vel producitur impetus in omnibus ſubiecti partibus vnitis, vel in nulla; </s>
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              modò nulla fiat ſeparatio, neque compreſſio
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              : Certum eſt enim in ijs omni­
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              bus partibus, quæ auolant ab ictu, produci impetum. </s>
              <s id="N12B44">Probatur igitur
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              1. quia ſi non producatur in omnibus partibus, & nulla ſeparetur ab
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              alijs; </s>
              <s id="N12B4C">certè nulla mouetur, vt certum eſt; </s>
              <s id="N12B50">igitur nulla habet impetum; </s>
              <s id="N12B54">
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              quia ibi non eſt cauſa formalis, vbi non eſt effectus formalis; alioquin
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              eſſet fruſtrà, contra Ax. 6.2. </s>
              <s id="N12B5B">Tu dicis produci impetum in aliquot parti­
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              bus; hoc dicis, hoc proba? </s>
              <s id="N12B61">an potes dignoſcere impetum niſi ex motu? </s>
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              vel conſeruaretur hîc impetus ſequentibus inſtantibus, vel ſtatim ſecun­
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              do inſtanti deſtrueretur. </s>
              <s id="N12B6A">Primum dicere abſurdum eſt; </s>
              <s id="N12B6D">quia ſi hoc eſſet
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              multisictibus repetitis tandem moueretur totum mobile; ſi verò de­
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              ſtrui dicatur. </s>
              <s id="N12B75">Secundo inſtanti; eadem ratio probat non produci. </s>
              <s id="N12B78">Pri­
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              mo inſtanti, quæ probat deſtrui. </s>
              <s id="N12B7D">Secundo nam ideo deſtruitur. </s>
              <s id="N12B80">Secun­
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              do quia eſt fruſtrà, ſed non minus eſt fruſtrà. </s>
              <s id="N12B85">Primo igitur non produ­
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              citur. </s>
              <s id="N12B8A">Primo 4. probatur; </s>
              <s id="N12B8D">quia cum non ſufficiant partes impetus, quas
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              dixi produci, vt omnibus partibus ſubiecti diſtribuantur; </s>
              <s id="N12B93">certè non eſt
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              vlla ratio, cur potiùs his quàm illis diſtribui dicantur; cum vna ſit tan­
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              tùm immediatè applicata. </s>
              <s id="N12B9B">Igitur certum eſt vel produci in omnibus, vel
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              in nulla, niſi forte aliquæ auolent, ſed tunc ſeparantur. </s>
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              <s id="N12BA2">Obiiciet aliquis 1. eſſe cauſam neceſſariam applicatam ſubiecto ap­
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              to: </s>
              <s id="N12BA8">igitur agit per Ax. 12. Reſpondeo eſſe impeditam; </s>
              <s id="N12BAC">nam reſiſtentia
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              ſubiecti ſuperat vires potentiæ vt dictum eſt; </s>
              <s id="N12BB2">immò in ipſo motu re­
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              torqueo argumentum; licèt enim ſit applicata cauſa neceſſaria mouens,
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              non tamen mouet. </s>
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              <s id="N12BBC">Obiiciet 2. Ignis applicatus agit in nonnullas partes ſubiecti, licèt
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              non agat in omnes; igitur & potentia motrix. </s>
              <s id="N12BC2">Reſpondeo non eſſe pa­
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              ritatem; </s>
              <s id="N12BC8">quia vna pars poteſt calefieri, & reſolui ſine alia, vt conſtat
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              non tamen vna moueri ſine alia, cui coniuncta eſt, niſi ſeparetur; igi­
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              tur nec recipere impetum ſine alia. </s>
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              <s id="N12BD2">Obiiciet. </s>
              <s id="N12BD5">3. ſint duo trahentes idem mobile; </s>
              <s id="N12BD9">ita vt ſeorſim neuter
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              trahere poſſit, coniunctim verò vterque poſſit; </s>
              <s id="N12BDF">certè ſi alter non pro­
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              ducit impetum ſeorſim, nec etiam coniunctim producet; </s>
              <s id="N12BE5">nec enim au­
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              gentur eius vires ab altero: </s>
              <s id="N12BEB">Reſpondeo vtrunque agere actione com­
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              muni; igitur non eſt mirum ſi effectus maior eſt, quem tamen neuter </s>
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