Varro, Michael, De motv tractatvs

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            <pb xlink:href="044/01/036.jpg" pagenum="28"/>
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              <s>Quod autem in vecte demonſtratum eſt, illud e­
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              tiam in reliquis mediis demonſtrandum erit, etſi
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              lemmati ſatisfactum eſt, dum in vno exemplo id
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              probatum eſt. </s>
              <s>Ante igitur ſecundum lemma de­
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              monſtrabimus. </s>
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              <s>LEMMA II.</s>
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              <s>Proportionem proximè maiorem vel minorem,
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              quàm ſit datæ vis ad datum pondus proportio, de­
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              terminare vis cuiuslibet quantitas ex motu ciere po||
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              teſt, metienda eſt. </s>
              <s>Motum autem ciere poteſt vel in
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              ſubiecto ſuo, vel in alieno. </s>
              <s>Vis autem menſura non
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              ſumitur ex eo motu quem in ſubiecto ſuo ciere po­
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              teſt, eo quòd licet vis quælibet certum motum ha­
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              beat &
                <expan abbr="determinatũ">determinatum</expan>
              quo ſubiectum ſuum mouet,
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              illius tamen quantitas, vt ſuprà diximus, nondum
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              demonſtrata eſt. </s>
              <s>Supereſt igitur vt vires motu illo
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              metiamur, quem in alieno ſubiecto ciere poſſunt, vt
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              id fiat, quærenda nobis ſunt ſubiecta quæ in homi­
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              num poteſtate ſint, & cum vi qualibet committi
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              poſſint. </s>
              <s>Omnium autem mobilium ſubiectorum,
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              maximè in hominum poteſtate ſunt grauia: leuia e­
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              nim coercere vix poſſumus. </s>
              <s>Ideo vires illis metiri
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              ſolemus, ſed grauibus quæ vel vel figuris ſuis & com
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              page vel vaſe aliquo coercentur. </s>
              <s>Itaque vſus homi­
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              num certas quaſdam ponderum menſuras ſibi ſta
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              tui, ponderibus ſcilicet quibuſdam certa
                <expan abbr="quãtitate">quantitate</expan>
              </s>
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