Fabri, Honoré, Tractatus physicus de motu locali, 1646
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              æquabilibus, & violento retardato ſint enim tres impetus ab eodem
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              puncto E ſcilicet EF, ED, EA; </s>
              <s id="N1BF92">ex EA ED fit mixtus EG, ex EA,
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              EF, violentus EB; denique ex mixto EG à naturali EF fit EC, quæ
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              omnia ſunt clara. </s>
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              Theorema
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              86.
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              Aſcendit mobile ad
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              altitudinem hoc motu, ad quem aſcenderet
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              ſine horizontali
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              v. g. ſine horizontali aſcendit in B, cum horizontali
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              aſcendit in C, ſed DC, & EB ſunt eiuſdem altitudinis. </s>
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              Scholium.
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              <s id="N1BFCE">Obſeruabis, licèt iſte motus non fiat per lineam parabolicam, vt ſuprà
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              demonſtrauimus Th. 54. & reliquis; quia tamen ſenſibiliter proximè
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              accedit, deinceps vtemur Parabola vt in fig. </s>
              <s id="N1BFD6">Th. 83. & horizontalem
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              motum accipiemus pro æquabili; </s>
              <s id="N1BFDC">licèt omninò æquabilis non ſit; </s>
              <s id="N1BFE0">niſi
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              tantùm æquiualenter; </s>
              <s id="N1BFE6">dixi æquiualenter, quia eodem modo ſe habet hic
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              motus, ac ſi per inclinatam ſurſum LC impetu ſcilicet LC mobile pro­
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              iiceretur; </s>
              <s id="N1BFEE">ſed in hoc caſu deſtrueretur impetus ille per inclinatam ſim­
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              plex; </s>
              <s id="N1BFF4">igitur & mixtus; </s>
              <s id="N1BFF8">quia tamen ille qui remanet partim ex LA, par­
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              tim ex LF eodem modo ferè ſe habet ac ſi totus LF intactus maneret;
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              hinc dictum eſt ſuprà æquiualenter eſſe æquabilem. </s>
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              Theorema
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              87.
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              Aſcendit hoc motu ad ſubduplam altitudinem illius, ad quam motu mixto
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              tantum ex verticali & horizontali ſine naturali aſcenderet
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              ; quippe aſcende­
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              ret in C fig. </s>
              <s id="N1C01D">Th.83. ſine impetu naturali, ſed FC & LA æquales ſunt; </s>
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              atqui motu violento puro, niſi naturalis obeſſet, aſcenderet in A; </s>
              <s id="N1C026">at ve­
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              rò ſi obeſt naturalis; </s>
              <s id="N1C02C">aſcendit tantùm motu violento in K, & mixto in
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              in D; </s>
              <s id="N1C032">quia ex K in L motu naturali tot acquireret mobile gradus impe­
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              tus naturalis quot amittit in motu violento ab L in K; </s>
              <s id="N1C038">ſed cum in impe­
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              tu acquiſito à K in L motu æquabili aſcenderet ab L in A, quæ eſt dupla
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              LK vt oſtendimus in ſecundo libro; </s>
              <s id="N1C040">ſed motu mixto, & verticali, & ho­
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              rizontali aſcenderet in C; </s>
              <s id="N1C046">ſed FD eſt ſubdupla FE; igitur motu mixto
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              aſcendit ad ſubduplam altitudinem, &c. </s>
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              Theorema
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              88.
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              Mobile projectum è naui mobili, vbi ad ſummam altitudinem peruenit mo­
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              tu mixto ex verticali retardato, horizontali æquabili, & naturali item æqua­
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              bili, deſcendit etiam motu mixto ex horizontali retardato ſaltem æquiualenter,
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              & naturali accelerato
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              ; </s>
              <s id="N1C06B">dixi æquiualenter, quia vt dixi in Sch. Th.86. licèt
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              remaneat aliquid impetus verticalis qui in communem lineam abit cum
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              horizontali; </s>
              <s id="N1C075">res tamen perinde ſe habet atque ſi totus verticalis deſtrue­
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              retur, & totus horizontalis intactus permaneret; igitur deſcenſus fit mo­
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              tu mixto ex naturali accelerato & horizontali retardato per Th.30. quia
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              tamen modico illo tempore parùm retardatur, vt ſuprà monui, ſenſibili­
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              ter accipi poteſt pro æquabili. </s>
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