Guevara, Giovanni di
,
In Aristotelis mechanicas commentarii
,
1627
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ſequenti quæſtione de ipſa latione pertractat. </
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<
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N176F4
">Vnde poſt
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breuem ſolutionem huius quæſtionis, addit: An potius ab
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ſurdum eſſe videtur, nos iſthæc quærere, ac in dubitationem
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vocare, principium relinquentes. </
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<
s
id
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N176FD
">Nempe cauſam huius ceſ
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ſationis conſiſtentem in ipſa natura virtutis, qua proiecta;
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feruntur, ac de qua acturus erat in ſequenti quæſtione. </
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<
s
id
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N17704
">Ve
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rùm totam huius rei doctrinam ſpectando non immeritò
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Ariſtotelem id egiſſe comperiemus, cùm ad explicandam
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tam occultæ qualitatis naturam non parum conducat illam
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à proprio interitu explorare. </
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</
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<
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id
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type
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<
s
id
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">Rectè igitur primo loco hìc quærit Ariſtoteles, cur ea,
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quæ proijciuntur ceſſent à latione. </
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>
<
s
id
="
N17716
">Et ratio dubitandi eſt,
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quia proiecta ceſſare non poſſunt à latione, niſi eius cauſa,
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ceſſante, quæ eſt virtus impreſſa à proijciente, vt quæſt. </
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>
<
s
id
="
N1771D
">ſe
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quen. </
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>
<
s
id
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N17722
">patebit: virtus autem hæc ſemel impreſſa non vide
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tur poſſe ceſſare. </
s
>
<
s
id
="
N17727
">Nam vel hoc contingeret per defectum
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cauſæ conſeruantis, vel per aduentum alicuius formæ con
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trariæ: ſed talis virtus exiſtens in proiecto iam ſeparato à
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proijciente, non poteſt deſinere ob defectum cauſæ con
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/>
ſeruantis: Siquidem iam perijſſet vbi primo ſeiunctum fuit
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lb
/>
fuit proiectum ipſum à proijciente; ſicut lumen quando ſe
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paratur illuminatum ab illuminante: nec per aduentum
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formæ contrariæ, cum nulla talis forma de nouo produca
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tur in proiecto quando ceſſat à motu: Ergo virtus prædicta
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non videtur poſſe deſinere,
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abbr
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ideoq.
">ideoque</
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nec proiectum à latione
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ceſſare. </
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>
</
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<
s
id
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N17744
">Nonnulli tamen reſpondent, virtutem illam impreſſam
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in proiectis paulatim remitti, ac tandem penitus corrumpi
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lb
/>
per reproductionem deperditæ grauitatis ad impreſſionem
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illius. </
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>
<
s
id
="
N1774D
">Putant enim in ipſo actu impreſsionis impetus, mul
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tùm minui de grauitate naturali ipsius corporis proiecti;
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lb
/>
quod cùm violenter fiat,
<
expan
abbr
="
ipſum̃
">ipſum</
expan
>
& corpus cum primò ſepa
<
lb
/>
ratur à proijciente paulatimue reducit in priſtinam grauita
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lb
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tem, per
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expan
abbr
="
quã
">quam</
expan
>
ſenſim etiam expellitur virtus illa à proijcien
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te impreſſa, quæ vocatur impetus, ſiue impulſus, & ſic proie
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ctum ceſſat à latione. </
s
>
<
s
id
="
N17768
">Quod explicant atque confirmant </
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