Monantheuil, Henri de, Aristotelis Mechanica, 1599

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                <s id="id.000460">
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                <s>horum enim medium eſt
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                æquale: illorum verò re­
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                ctum. </s>
                <s id="id.000461">Ideò inuicem cum
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                commutantur, priùs ne­
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                ceſſe eſt æqualia fieri: li­
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                neam ſanè rectam, cum ex
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                conuexa fit caua: & rurſus
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                ex ipſa fit conuexa & ro­
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                tunda. </s>
                <s id="id.000462">Atque vnum hoc
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                eſt ex abſurdis quę inſunt
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                circulo. </s>
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              <p type="head">
                <s id="id.000463">COMMENTARIVS. </s>
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                <s id="id.000464">Primum ſiquidem.]
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                Vetuſtatis iniuria multas veterum li­
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                bris, & huic ſane irrepſiſſe mendas, non eſt res dubia, vt hoc loco
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                  <foreign lang="el">prw/ton</foreign>
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                pro
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                  <foreign lang="el">deu/teron. </foreign>
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                Namque hîc non prima, vt iam patuit: ſed ſe­
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                cunda eſt in circulo repugnantia. </s>
                <s id="id.000465">Eaque ex eo quod cum circuli peri­
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                pheria ſit vna linea def. 15. lib. 1. elem. & idcirco latitudinis expers
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                def. 2. lib. eiuſdem: habeat tamen in ſe contraria conuexum ſcilicet,
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                & concauum: illud quidem quà ſpectat foras: hoc vero quà intra.
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                </s>
                <s id="id.000469">vbi nota Ariſtotelem dixiſſe hæc
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                  <foreign lang="el">e)nanti/a pws</foreign>
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                contraria quodam­
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                modo. </s>
                <s id="id.000470">Nec enim vere contraria ſunt, quia vere contraria ſunt ea,
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                quæ ſecundum ſeipſa ſumpta, ex ſeipſis extreme diſtant, & vnde ſe
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                expellere nata ſint, habent: at hæc conuexum & concauum non ſic
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                extreme diſtant: ſed ratione ſitus partium in diuerſis locorum diffe­
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                rentijs, quod ſcilicet aliæ alijs ſint al­
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                  <figure id="id.035.01.058.1.jpg" xlink:href="035/01/058/1.jpg" number="6"/>
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                  <emph type="italics"/>
                tiores, vel depreßiores. </s>
                <s id="id.000471">Cum enim re­
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                ctum ſit id in lineis quod ex æquo iacet
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                inter ſua extrema def. 2. lib. 1. & vt
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                linea A B, curuum erit quod non ex
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                æquo iacebit, ſed altius aut depreßius:
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                idque ſi inter extrema vbique attollatur:
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                conuexum vt C E D: ſi vero vbique
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                deprimatur concauum, vt C F D quæ eadem eſt linea ex ſe, ſed
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                ex locis E E & F F partium mutata. </s>
                <s>Cum igitur ab eadem C D
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