Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

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              pendet ab habitu principiorum, loco illorum nititur conclu­
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              ſionibus demonſtratis in ſuperiori ſcientia. </s>
              <s id="N10AF8">Et hac ratione
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              nihil demonſtratur in Perſpectiua, quod
                <expan abbr="nõ">non</expan>
              inferatur ex con­
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              cluſionibus Geometriæ cui ipſa ſubordinatur;
                <expan abbr="nihilq.">nihilque</expan>
              in Mu­
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              ſica, quod non nitatur concluſionibus ac principijs Arithme­
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              ticæ cui ſimiliter ipſa ſubalternatur. </s>
            </p>
            <p id="N10B0B" type="main">
              <s id="N10B0D">Secundum requiſitum eſt, vt idem ſit obiectum ſubalter­
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              natæ, ac ſubalternantis ſecundum aliquam rationem forma­
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              lem. </s>
              <s id="N10B14">Quandoquidem ſi ſubiecta eſſent eſſentialiter diuerſa
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              ſecundum formalitatem qua cadunt ſub ſcientiam, non dare­
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              tur tranſitus à ſcientia ſubalternata ad
                <expan abbr="ſubalternantẽ">ſubalternantem</expan>
              , vt do­
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              cet Ariſtoteles; hoc eſt accipiendo ex illa propria principia
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              ac media ad probandum ſuas concluſiones; quia tam paſſio­
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              nes demonſtrandæ de ſubiecto, quàm principia quæ ſunt
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              cauſæ intrinſecæ ipſarum
                <expan abbr="paſſionũ">paſſionum</expan>
              , debent eſſe maximè pro­
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              pria & connexa cum ipſo ſubiecto: nihil autem poteſt eſſe
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              maximè proprium duobus ſubiectis eſſentialiter diuerſis; ac
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              proinde ex connexione cum principijs vnius, inferri non po­
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              teſt connexio alterius ad conficiendas demonſtrationes. </s>
              <s id="N10B33">Ea­
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              dem ergo eſſentialiter debent eſſe ſubiecta ſubalternantis, ac
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              ſubalternatæ, ſaltem ſecundum aliquam rationem formalem,
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              quamuis alia ratione differant inter ſe. </s>
              <s id="N10B3C">Semper enim ratio
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              illa formalis ſub qua agitur de aliquo in ſcientia, vniuerſaliori
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              ac ſimpliciori modo conſideratur in ſubalternante, quàm in
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              ſubalternata, in qua ſemper contrahitur ab aliqua differentia
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              accidentali ſuperaddita, vt conſtat in Muſica reſpectu Arith­
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              meticæ, & in Perſpectiua reſpectu Geometriæ. </s>
              <s id="N10B49">Siquidem in
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              Arithmetica ſimpliciter conſideratur numerus ſecundum ſe,
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              in Muſica vero conſideratur numerus in ſono. </s>
              <s id="N10B50">
                <expan abbr="Similiterq.">Similiterque</expan>
              in
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              Geometria ſolum conſiderantur lineæ, in Perſpectiua vero
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              conſiderantur in viſu, quæ differentiæ putantur accidentales;
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              nam vt docet Ariſtoteles locis citatis, & 13 metaph. </s>
              <s id="N10B5C">ſum. 1.
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              cap. 3. Muſica & Perſpectiua non verſantur formaliter circa
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              ſonum & viſum ſed circa numerum & lineam de quibus agi­
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              tur abſolutè in Arithmetica, & Geometria. </s>
            </p>
            <p id="N10B68" type="main">
              <s id="N10B6A">Quibus poſitis, dicendum eſt, Mechanicam
                <expan abbr="facultatẽ">facultatem</expan>
              ab­</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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