Alvarus, Thomas
,
Liber de triplici motu
,
1509
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121 - 130
131 - 140
141 - 150
151 - 160
161 - 170
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Primi tractatus
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pitis obiicitur ſic. </
s
>
<
s
xml:id
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xml:space
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preserve
">Si illa cõcluſio eſſet vera: ſeque-
<
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retur / due potentie equales continuo manentes
<
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/>
equales idem medium vel equale tranſeuntes vna
<
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/>
altera continuo velocius moueretur cõſequens eſt
<
lb
/>
falſum: igitur illud ex quo ſequitur. </
s
>
<
s
xml:id
="
N1A8FD
"
xml:space
="
preserve
">Falſitas conſe
<
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/>
quentis ptꝫ: quia reſiſtentiis equalibus potētiiſ
<
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/>
equalibus, neceſſe eſt motus eſſe equales / vt ſatis cõ
<
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/>
ſtat: quia tunc proportiones equales erūt ex quibꝰ
<
lb
/>
equales motus conſurgunt. </
s
>
<
s
xml:id
="
N1A908
"
xml:space
="
preserve
">Sed iam ſequela dedu
<
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/>
citur / et capio vnū pedale et vnū ſemipedale: et per
<
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/>
vtrū illorum ſit extenſa latitudo reſiſtētie vnifor-
<
lb
/>
miter difformis a nõ gradu vſ ad octauū: et inci-
<
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/>
piat a. potentia moueri a nõ gradu reſiſtentie in pe
<
lb
/>
dali vniformiter continuo, creſcens vniformiter a
<
lb
/>
nõ gradu potentie / vt ſepius dictum eſt: et b. poten-
<
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/>
tia incipiat moueri a non gradu reſiſtentie in ſemi
<
lb
/>
pedali, continuo vniformiter et eque velociter cre-
<
lb
/>
ſcens ſicut a. potentia. </
s
>
<
s
xml:id
="
N1A91D
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xml:space
="
preserve
">Quo poſito ſic argumentor
<
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/>
illa duo media ſunt equaliter reſiſtentia cum habe
<
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/>
ant equalem reſiſtentiam oīno: puta a non gradu
<
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/>
vſ ad octauum: et a. et b. continuo manentes equa
<
lb
/>
les vniformiter mouentur / vt dicit ſecunda cõcluſio
<
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/>
quam impugnamus: et a. velocius mouetur quã b. /
<
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/>
igitur propoſitum. </
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>
<
s
xml:id
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N1A92C
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xml:space
="
preserve
">Maior eſt nota et minor proba
<
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tur: et ſuppono / quãdo in duobus mediis inequa
<
lb
/>
libus extenditur eadem latitudo reſiſtentie vnifor-
<
lb
/>
miter difformis a non gradu vſ ad certum gradū
<
lb
/>
in ea proportione in qua ſe habent media ad inuicē
<
lb
/>
quantitatiue, in eadē proportione plus diſtat qui-
<
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/>
libet punctus a non gradu in medio maiori quam
<
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/>
conſimilis punctus in medio minori: ita ſi vnum
<
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/>
mediū ſit duplum ad alterum: gradus medius per
<
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/>
duplum maius ſpacium diſtat a non gradu in me-
<
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/>
dio maiori ꝙ̄ in medio minori. </
s
>
<
s
xml:id
="
N1A943
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xml:space
="
preserve
">Et ſic de quocū a-
<
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lio puncto. </
s
>
<
s
xml:id
="
N1A948
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xml:space
="
preserve
">Hoc ptꝫ ex diffiniitõe qualitatis vnifor-
<
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miter difformis quarto tractatu. </
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>
<
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="
N1A94D
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xml:space
="
preserve
">Quo ſuppoſito
<
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arguitur ſic minor: quia a. et b. mouentur vniformi
<
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/>
ter continuo / vt dicit illa ſecunda concluſio quã im
<
lb
/>
pugnamus: et a. non mouetur ita velociter ſicut b.
<
lb
/>
adequate: nec tardius: igitur a. cõtinuo velociꝰ mo-
<
lb
/>
uetur quã b. / quod fuit probandū. </
s
>
<
s
xml:id
="
N1A95A
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xml:space
="
preserve
">Cõſequentia ptꝫ
<
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/>
et arguitur maior: q2 ſi a. mouetur ita velociter ade
<
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/>
quate ſicut b. / ſequitur (cū cõtinuo a. et b. ſunt equa-
<
lb
/>
les) / cõtinuo in quocū puncto eſt a. in medio pe-
<
lb
/>
dali in conſimili puncto eſt b. in medio ſemipedali.
<
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/>
</
s
>
<
s
xml:id
="
N1A966
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xml:space
="
preserve
">Patet cõſequētia ex ſe et vltra: in quocū puncto
<
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/>
eſt a. in pedali in ↄ̨ſimili eſt b. in ſemipedali: et quod
<
lb
/>
libet punctū ī pedali in duplo plus diſtat a nõ g̈du
<
lb
/>
̄ cõſimile punctū in ſemipedali: igit̄̄ cõtinuo in du
<
lb
/>
plo plus diſtat a. a puncto a quo īcepit moueri ꝙ̄ b.
<
lb
/>
cū tam a. quã b. inceperūt moueri a nõ gradu illius
<
lb
/>
reſiſtentie: et ꝑ cõſequēs a. ↄ̨tinuo in duplo velocius
<
lb
/>
mouetur ꝙ̄ b. et ex hoc nõ ita velociter adequate / qḋ
<
lb
/>
eſt ꝓbandū. </
s
>
<
s
xml:id
="
N1A979
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xml:space
="
preserve
">Sed tã probo minorē videlicet / a. nõ
<
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/>
mouet̄̄ tardius ꝙ̄ b. q2 ſi mouetur tardiꝰ: ſequit̄̄ /
<
lb
/>
cõtinuo eſt in puncto magis reſiſtente ꝙ̄ b. et ſi cõti-
<
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/>
nuo eſt in pūcto magis reſiſtente ꝙ̄ b. / ſequit̄̄ / con-
<
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/>
tinuo pluſ̄ in duplo velociꝰ mouetur ꝙ̄ b. / et ꝑ ↄ̨ñs
<
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/>
nõ tardius / qḋ fuit ꝓbandū. </
s
>
<
s
xml:id
="
N1A986
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xml:space
="
preserve
">Patet ↄ̨ña / q2 ſi ↄ̨tinuo
<
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/>
a. eſſet in pūcto ↄ̨ſimili ſiue equali illi pūcto in quo
<
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/>
eſt b. cõtinuo a. in duplo velociꝰ moueret̄̄ ipſo b. / vt
<
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/>
ꝓbatū eſt: igit̄̄ ſi cõtinuo ſit in pūcto adhuc magis
<
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/>
reſiſtente / ſequitur / continuo velocius mouetur ̄
<
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/>
b. </
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>
<
s
xml:id
="
N1A993
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xml:space
="
preserve
">Patet conſequentia per locum a maiori.</
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>
</
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>
<
p
xml:id
="
N1A996
">
<
s
xml:id
="
N1A997
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xml:space
="
preserve
">Reſpõdeo cõcedendo quod īfertur / q2
<
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/>
illud ſufficienter demõſtrat argumentū: et nego fal
<
lb
/>
ſitatē cõſequētis: et cū ꝓbatur nego / ille reſiſtētie
<
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/>
ſint ſimpliciter equales. </
s
>
<
s
xml:id
="
N1A9A0
"
xml:space
="
preserve
">Ad equalitatem enim reſi
<
cb
chead
="
Capitulū duodecimū.
"/>
<
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position
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right
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xlink:href
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note-0109-01a
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xlink:label
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note-0109-01
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xml:id
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N1A9B5
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xml:space
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preserve
">Quid re
<
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q̇rit̄̄ ad e
<
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/>
q̈litatem
<
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/>
reſiſtētia
<
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/>
rum.</
note
>
ſtentiarum (quod nota) ſaltem vniformiter diffor-
<
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/>
mium non ſufficit equalitas intenſionis, ſed etiam
<
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/>
extenſionum equalitas requiritur / vt probat argu-
<
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/>
mentum.</
s
>
</
p
>
<
p
xml:id
="
N1A9C3
">
<
s
xml:id
="
N1A9C4
"
xml:space
="
preserve
">Sed ↄ̨̨tra: q2 ſi ſolutio eſſet vera vide
<
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/>
licet / quãto eadē reſiſtētia vniformiter difformis
<
lb
/>
eſt in minori medio tantū plus reſiſtit ſed nõ adeq̈-
<
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/>
te: ſequeret̄̄ / hoc ꝓueniret ratiõe dēſitatꝪ: ſed hoc
<
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/>
eſt falſum: igit̄̄ ſolutio nulla. </
s
>
<
s
xml:id
="
N1A9CF
"
xml:space
="
preserve
">Sequela ptꝫ / q2 nõ vi
<
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/>
detur alia ratio. </
s
>
<
s
xml:id
="
N1A9D4
"
xml:space
="
preserve
">Sed falſitas cõſequētis arguitur /
<
lb
/>
q2 volo / pedale et ſemipedale ſint eq̈liter dēſa ſi-
<
lb
/>
cut facile ſit / vt ptꝫ ex primo capite tertii tractatꝰ: et
<
lb
/>
eadē latitudo reſiſtētie vniformiter difformis extē-
<
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/>
datur ꝑ pedale et ſemipedale. </
s
>
<
s
xml:id
="
N1A9DF
"
xml:space
="
preserve
">Quo poſito ptꝫ / il-
<
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/>
le q̈litates ſūt eque rare: q2 ſūt in ſubiectis eq̈liter
<
lb
/>
raris.
<
note
position
="
right
"
xlink:href
="
note-0109-02a
"
xlink:label
="
note-0109-02
"
xml:id
="
N1A9FA
"
xml:space
="
preserve
">Raritas
<
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/>
q̈litatis
<
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/>
vnde ſu-
<
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matur.</
note
>
</
s
>
<
s
xml:id
="
N1A9EB
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xml:space
="
preserve
">(Raritas em̄ vel dēſitas accidētis penes ra-
<
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/>
ritatē vel dēſitatē ſubiecti cõmenſurari hꝫ) et tamē
<
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/>
eadē poña velociꝰ mouet̄̄ in reſiſtētia pedali ꝙ̄ in ſe
<
lb
/>
mipedali / vt probatū eſt: igit̄̄ illud non prouenit ex
<
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/>
parte raritatis aut denſitatis / quod fuit ꝓbandū.</
s
>
</
p
>
<
p
xml:id
="
N1AA06
">
<
s
xml:id
="
N1AA07
"
xml:space
="
preserve
">Reſpondeo vt michi apparet pro nūc
<
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/>
concedendo ſequelam: et negando falſitatem conſe
<
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/>
quentis: et ab probatione admiſſo caſu nego / ille
<
lb
/>
qualitates ſint eque rare in maiori ſubiecto et in mi
<
lb
/>
nori: et cum probatur / quia ſubiecta ſunt eque rara
<
lb
/>
concedo illud: et cum infertur ergo et accidentia: ne
<
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/>
go conſequentiam: et ad probationem nego / ex ra
<
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/>
ritate ſubiecti debeat ſumi raritas accidētis in or-
<
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/>
dine ad aliud accidens: ſed debet ſumi ex multitu-
<
lb
/>
dine forme accidentalis ſub proportionali quanti
<
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/>
tate. </
s
>
<
s
xml:id
="
N1AA1E
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xml:space
="
preserve
">Credo tamen / naturaliter loquendo in den-
<
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ſiori ſubiecto eſt denſius accidens ceteris paribus
<
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/>
</
s
>
<
s
xml:id
="
N1AA24
"
xml:space
="
preserve
">Et ſi hec ſolutio tibi non placeat: dicas / maior re
<
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/>
ſiſtentia in medio minori quam in maiori prouenit
<
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/>
ex minoritate medii: hoc eſt continuo ibi fiet mo-
<
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/>
tus minoris velocitatis, prouenit ex parte minoris
<
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/>
extenſionis conſimilis reſiſtentie illi que eſt in me-
<
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/>
dio maiori.
<
note
position
="
right
"
xlink:href
="
note-0109-03a
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xlink:label
="
note-0109-03
"
xml:id
="
N1AA5D
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xml:space
="
preserve
">Calcula.
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de react.</
note
>
</
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>
<
s
xml:id
="
N1AA36
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xml:space
="
preserve
">Quoniam vt placet calculatori in ca-
<
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/>
pitulo de reactione in primo notabili quod ponit,
<
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/>
denſitas nõ ſimpliciter auget rei potentiam. </
s
>
<
s
xml:id
="
N1AA3D
"
xml:space
="
preserve
">Et cū
<
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/>
querit̄̄ quare / igitur dēſius fortius agit aut reſiſtit.
<
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/>
<
note
position
="
right
"
xlink:href
="
note-0109-04a
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xlink:label
="
note-0109-04
"
xml:id
="
N1AA65
"
xml:space
="
preserve
">q̈rto ce. et
<
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/>
mū. tex.
<
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cõ. 42.</
note
>
</
s
>
<
s
xml:id
="
N1AA49
"
xml:space
="
preserve
">Reſpõdet / hoc eſt ratiõe melioris applicationis:
<
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/>
quēadmoduꝫ diuerſitas figure eſt cauſa velocioris
<
lb
/>
motus teſtimonio philoſophi .4. ce. et mūdi tex. cõ.
<
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/>
42. </
s
>
<
s
xml:id
="
N1AA52
"
xml:space
="
preserve
">Et ſi hec ſolutio tibi non placeat: quere aliam.
<
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/>
</
s
>
<
s
xml:id
="
N1AA56
"
xml:space
="
preserve
">Argumentum em̄ conuīcit concedere illatum.</
s
>
</
p
>
<
p
xml:id
="
N1AA6F
">
<
s
xml:id
="
N1AA70
"
xml:space
="
preserve
">Sed cõtra vtrã ſolutionem arguit̄̄
<
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/>
ſic: quia ſi hoc eſſet verum videlicet / in caſu poſito
<
lb
/>
eadem potentia vel equalis continuo velocius mo
<
lb
/>
uetur per reſiſtentiã conſimilis intenſionis in me-
<
lb
/>
dio maiori quam in minori: ſequeretur / poſſibile
<
lb
/>
eſſet eadem potentia eque cito pertranſiret me-
<
lb
/>
dium duplum ſicut medium ſubduplum per quod
<
lb
/>
tardius mouetur: dūmodo illa media eſſent oīno
<
lb
/>
eodem modo qualificata per eandem reſiſtentiam
<
lb
/>
vniformiter difformem: ſed conſequens eſt falſum:
<
lb
/>
igitur illud ex quo ſequitur. </
s
>
<
s
xml:id
="
N1AA87
"
xml:space
="
preserve
">Sequela patet quoniã
<
lb
/>
ſi ex eo / medium eſt minus potentia equalis in eo
<
lb
/>
tardius mouetur per conſimilem reſiſtentiam vni-
<
lb
/>
formiter difformē: ſequitur / in quacun propor-
<
lb
/>
tione medium eſt minus in eadem proportione ea-
<
lb
/>
dem potentia tardius illud pertranſit reſiſtentia
<
lb
/>
exiſtente eadem vel conſimili. </
s
>
<
s
xml:id
="
N1AA96
"
xml:space
="
preserve
">Sed falſitas conſe-
<
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/>
quentis oſtenditur / quia ſi eque cito potetia a. eſſet
<
lb
/>
in fine pedalis ſicut potentia b. in fine medii ſemipe
<
lb
/>
dalis: (cū vtrū illoꝝ medioꝝ terminet̄̄ ad gradum
<
lb
/>
octauū) / ſequit̄̄ / in illo īſtãti (cū ille poñe ſint eq̈les </
s
>
</
p
>
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>
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>
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