Fabri, Honoré, Tractatus physicus de motu locali, 1646

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            <p id="N1E61A" type="main">
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              cauimus; nam idem deſtruitur in dato puncto aſcenſus, qui producere­
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              tur in eodem puncto deſcenſus. </s>
            </p>
            <p id="N1E638" type="main">
              <s id="N1E63A">Dices, gradus productus vltimo inſtanti deſcenſus non deſtruitur pri­
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              mo aſcenſus. </s>
              <s id="N1E63F">Reſpondeo deſtrui; </s>
              <s id="N1E643">hinc eadem cauſa idem deſtruit primo
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              inſtanti aſcenſus quod produxit vltimo inſtanti deſcenſus; deſtruit in­
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              quam mediatè. </s>
            </p>
            <p id="N1E64B" type="main">
              <s id="N1E64D">Hîc obſeruabis ſingulare diſcrimen, quod intercedit inter cauſam
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              producentem, & exigentem; </s>
              <s id="N1E653">nam producens verè agit, exigens verò tan­
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              tùm exigit; </s>
              <s id="N1E659">illa conſequitur effectum eo inſtanti quo agit; </s>
              <s id="N1E65D">hæc verò non
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              habet effectum eo inſtanti, quo exigit, ſed pro ſequenti; </s>
              <s id="N1E663">eſt tamen cauſa
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              eo inſtanti, quo exigit, non certè agens, ſed exigens: </s>
              <s id="N1E669">exemplum habes
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              in impetu, qui non habet motum eo inſtanti quo exigit, ſed tantùm ſe­
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              quenti pro quo exigit; </s>
              <s id="N1E671">igitur eſt cauſa motus antequàm ſit motus, non
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              agens ſed exigens; at verò cum impetus alium impetum producit eſt
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              tantùm cauſa illius cum agit. </s>
            </p>
            <p id="N1E679" type="main">
              <s id="N1E67B">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
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              82.
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              </s>
            </p>
            <p id="N1E687" type="main">
              <s id="N1E689">
                <emph type="italics"/>
              Vltimo inſtanti aſcenſus ſunt duo gradus impetus, ſcilicet productus primo
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              inſtanti deſcenſus cum innato
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              ; </s>
              <s id="N1E694">igitur inſtanti ſequenti erit motus, id eſt,
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              deſcenſus, quia præualet innatus qui perfectior eſt, vt conſtat ex dictis; </s>
              <s id="N1E69A">
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              igitur nullum erit inſtans quietis; quæ omnia explicari debent eodem
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              modo, quo iam explicuimus in motu violento, lib.3. eſt enim eadem ra­
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              tio, &c. </s>
              <s id="N1E6A3">quæ omitto ne multa hîc repetere cogar. </s>
            </p>
            <p id="N1E6A6" type="main">
              <s id="N1E6A8">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              83.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N1E6B4" type="main">
              <s id="N1E6B6">
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              Ictus eſſent ferè æquales in ſegmentis æqualibus aſcenſus & deſcenſus,
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              quia
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              motus eſſet æqualis in illis; igitur ictus æquales, quod facilè eſt. </s>
            </p>
            <p id="N1E6C1" type="main">
              <s id="N1E6C3">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              84.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N1E6CF" type="main">
              <s id="N1E6D1">
                <emph type="italics"/>
              In planis eiuſdem inclinationis idem corpus graue eſt eiuſdem ponderis
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              v.
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              g. ſint plana FE. GD. HO eiuſdem inclinationis cum communi ſci­
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              licet perpendiculo ODEA; </s>
              <s id="N1E6E1">certè pondus corporis in O eſt ad pondus
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              eiuſdem in H vt AH ad AO per Th.57. & pondus corporis eiuſdem in
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              D eſt ad pondus eiuſdem in G vt AG ad AD, & in E vt AF ad AE; </s>
              <s id="N1E6E9">
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              ſed AF eſt ad AE vt AG ad AD, vt AH ad AO; ſunt enim triangula
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              proportionalia. </s>
            </p>
            <p id="N1E6F0" type="main">
              <s id="N1E6F2">Hinc reiice quorumdam recentiorum ſententiam, qui volunt corpus,
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              quod propiùs ad centrum terræ accedit, eſſe minùs graue, & grauius quod
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              longiùs à centro recedit, quod de grauitate corporis abſolutè ſumpti nul­
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              latenus dici poteſt vt conſtat, vtrum verò ſi cum alio in eadem libra ſta­
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              tuatur hinc inde, videbimus ſuo loco. </s>
            </p>
            <p id="N1E6FD" type="main">
              <s id="N1E6FF">Diceret fortè aliquis in ipſo centro ſpoliari ſua tota grauitate; </s>
              <s id="N1E703">igitur
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              quo propiùs accedit ad centrum maiori grauitatis portione multatur; </s>
              <s id="N1E709">ſed
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              nego conſequentiam; </s>
              <s id="N1E70F">nec enim ſequitur priuari parte grauitatis dum
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              abeſt à centro, licèt tota priuetur cum eſt in centro ſed de hac quæſtione
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              plura aliàs; nec enim huius loci eſt. </s>
            </p>
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