Alvarus, Thomas
,
Liber de triplici motu
,
1509
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Primi tractatus
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intēditur / et per conſequens motus non remittitur:
<
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/>
patet cõſequētia ex tertio correlario quarte cõclu-
<
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ſionis octaui capitis ſecūde partis: antecedēs pro
<
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batur / q2 in aliquo tēpore īmediate ſequēte illud in
<
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ſtans in quo a. habet ꝓportionē f. ad ſuã reſiſten-
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tiã, potētia velociꝰ creſcit ꝙ̄ antea quãdo intende-
<
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/>
bat motū in aliquo tēpore equali īmediate ſequē-
<
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/>
te inſtans in quo habuit f. ꝓportionē: et reſiſtentia
<
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/>
tardiꝰ ſibi creſcit ꝙ̄ antea in tanto tēpore poſcã ha
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buit f. ꝓportionē. </
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>
<
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N19CAF
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xml:space
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">Sed antea quãdo intēdebat mo-
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tū in equali tēpore īmediate ſequēte inſtãs in quo
<
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/>
a. habuit f. proportionē inter acquiſitū potentie et ac-
<
lb
/>
quiſitū reſiſtentie erat maior ꝓportio ꝙ̄ f. / ergo in
<
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/>
tanto tēpore īmediate ſequēte illud inſtans in tem
<
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/>
pore remiſſionis in quo inſtanti a. habet ꝓportio-
<
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/>
nē f. ad ſuã reſiſtentiã inter acquiſitū potentie et ac-
<
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/>
quiſitū reſiſtentie erit maior ꝓportio ꝙ̄ f. / ptꝫ con-
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ſequētia per locū a maiori. </
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<
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">Probatur tertia pars
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minoris videlicet / nõ aliquãdo remittit et aliquã
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do poſtea intēdit: q2 ſi ſic detur inſtãs in quo poſcã
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remiſit incipit intēdere. </
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<
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illud inſtans remitebãt vel aliquãdo intendebat et
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poſtea remittebat. </
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<
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pars minoris: nec ſcḋm vt dicit ſecūda pars mino
<
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ris: ergo nõ aliquando remittit, et poſtea intendit /
<
lb
/>
quod fuit inferendū: ptꝫ cõſequētia: et maior ꝓba-
<
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/>
tur / q2 nõ vniformiter mouebitur / vt ptꝫ ex prima cõ
<
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cluſione huiꝰ. </
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>
<
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xml:space
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preserve
">Et ſic ꝓbabis aliã partē cõcluſionis
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paucis mutatis: ptꝫ igitur concluſio.</
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<
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">Quinta cõcluſio. </
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>
<
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xml:space
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">Si ab aliquo pūcto
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medii vniformiter difformis incipiat aliqua poña
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per ſue potētie cõtinuū vniforme crementū cõtinuo
<
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/>
vniformiter moueri, et potētia equalis ei cõſimili-
<
lb
/>
ter oīno creſcēs incipiat a pūcto remiſſiori moueri
<
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in eodē medio: talis potētia cõtinuo remittit motū
<
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ſuū. </
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>
<
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xml:space
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">Et ſi eadē potentia inciperet moueri a puncto
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inteſiori illiꝰ medii: ipſa cõtinuo intenderet motum
<
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ſuū. </
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>
<
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">Probatur prima pars cõcluſionis / ſit a. potē-
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tia que vniformiter cõtinuo mouetur c. mediū vni-
<
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/>
formiter difforme ad nõ gradū terminatū trãſeū-
<
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/>
do per ſue potentie vniforme cõtinuū crementū, in
<
lb
/>
puncto intrinſeco eiuſdē c. medii exiſtens: ſit b. po
<
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/>
tentia ei equalis in pūcto remiſſiori eiuſdē c. medii
<
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/>
exiſtens oīno cõſimiliter creſcens cū a. et moueãtur
<
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/>
a. et b. ab illis pūctis verſus extremum intenſius c.
<
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medii: tūc dico / b. cõtinuo remittit motum ſuum.
<
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</
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<
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xml:space
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">Quod ſic ꝓbatur / q2 ꝓportio ipſiꝰ b. ad ſuã reſiſtē-
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tiã cõtinuo diminuit̄̄: ergo b. ↄ̨tinuo remittit motū
<
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ſuū. </
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<
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">Cõſequentia ptꝫ: et ãtecedēs ꝓbatur / q2 cõtinuo
<
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reſiſtentia ipſiꝰ b. maiorē ꝓportionē acquirit quã
<
lb
/>
ipſa b. potētia: igitur cõtinuo ꝓportio ipſius b. ad
<
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ſuã reſiſtentiã diminuitur. </
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<
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">Patet conſequentia ex
<
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ſecūda parte primi correlarii tertie ↄ̨cluſiõis octa
<
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ui capitis ſecūde partis: hoc addito / b. potentia
<
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eſt terminus maior et ſua reſiſtentia terminꝰ minor
<
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</
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<
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">Antecedens ꝓbatur / q2 cõtinuo reſiſtentia ipſiꝰ b.
<
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maiorē ꝓportionē acquirit quã reſiſtentia ipſiꝰ a.
<
lb
/>
et cõtinuo reſiſtentia ipſius a. et ipſa b. potētia ac-
<
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/>
quirunt equalē ꝓportionē: igitur cõtinuo reſiſten-
<
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tia ipſius b. maiorē proportionē acquirit ꝙ̄ ipſa b.
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potentia / quod fuit ꝓbandū. </
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<
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<
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hoc / illud quod aliquo eſt maius: eſt quolibet illi
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equali maius. </
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<
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xml:space
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">Et maior ꝓbatur / q2 cõtinuo b. potē-
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tia velocius et per minorē reſiſtentiã mouetur ꝙ̄ a.
<
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potētia: igitur cõtinuo reſiſtētia ipſius b. potentie
<
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maiorē ꝓportionē acquirit ꝙ̄ reſiſtentia ipſius a.
<
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</
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<
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">Cõſequentia patet ex octaua ſuppoſitione quarti
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capitis ſecūde partis iuuamine loci a fortiori. </
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<
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">Et
<
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Capitulū decimū.
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antecedens ptꝫ / q2 b. potentia cõtinuo equalis ipſi
<
lb
/>
a. mouetur continuo per reſiſtentiã nõ gradui c. me
<
lb
/>
dii pinquiorē ꝙ̄ a. potentia / vt ptꝫ ex caſu: igitur
<
lb
/>
cõtinuo b. potentia velocius et per minorē reſiſten-
<
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tiã mouetur ꝙ̄ a. potentia / quod fuit ꝓbandū. </
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<
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<
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iam ꝓbo minorē videlicet / cõtinuo reſiſtentia ip-
<
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ſius a. et ipſa b. potentia acquirūt equalē ꝓportio-
<
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/>
nem: q2 cõtinuo reſiſtentia ipſius a. et ipſa a. poten
<
lb
/>
tia eqnalē ꝓpottionē acquirūt / vt ptꝫ ex ſecūda par
<
lb
/>
te primi correlarii quarte concluſionis octaui ca-
<
lb
/>
pitis preallegati (cū a. potētia cõtinuo moueatur
<
lb
/>
ab eadem ꝓportione ipſa a. poteutia et ſua reſiſtē
<
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/>
tia continuo creſcentibus) et ipſa a. potētia et ipſa
<
lb
/>
b. potentia continuo ſimiliter equalē ꝓportionem
<
lb
/>
acquirunt / vt ptꝫ ex caſu: igitur continuo reſiſtentia
<
lb
/>
ipſius a. et ipſa b. potentia acquirunt equalē ꝓpor
<
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tionē / quod fnit ꝓbandū. </
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>
<
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<
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hoc / illud quod eſt vni equale: eſt cuilibet illi eq̈li
<
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/>
equale. </
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>
<
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xml:space
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">Et ſic ptꝫ prima pars. </
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<
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xml:space
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">Iam ꝓbatur ſecun-
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da pars cõcluſionis. </
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<
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">Sit a. potentia que mouetur
<
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continuo vniformiter .etc̈. vt ſupra ſit b. potentia
<
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/>
ei equalis cõſimiliter oīno creſcens ſicut a. poſita
<
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/>
in puncto intenſiori c. medii: et moueãtur ſimul ab
<
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/>
illis punctis verſus extremū intenſius c. medii: tūc
<
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/>
dico / b. potentia continuo intendit motum ſuum
<
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</
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>
<
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xml:id
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xml:space
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">Quod ſic ꝓbatur / q2 cõtinuo ꝓportio ipſius b. ad
<
lb
/>
ſuã reſiſtentiã augetur: igitur continuo b. potentia
<
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/>
intēdit mutū ſuū. </
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>
<
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">Antecedēs ꝓbatur / q2 cõtinuo b.
<
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poña maiorē ꝓportionē acq̇rit ꝙ̄ ſua reſiſtētia: igr̄
<
lb
/>
cõtinuo ꝓportio ipſius b. ad ſuã reſiſtentiã auget̄̄.
<
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</
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<
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">Patet cõſequentia ex primo correlario ſecūde cõ-
<
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cluſionis octaui capitis: hoc addito / b. potentia
<
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/>
ſe habet vt terminus maior et ſua reſiſtentia vt ter
<
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minus minor. </
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<
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xml:space
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">Sed antecedens ꝓbatur / q2 continuo
<
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reſiſtētia ipſius a. maiorē ꝓportionē acquirit quã
<
lb
/>
reſiſtentia ipſius b. et continuo reſiſtentia ipſius a.
<
lb
/>
et ipſa b. potentia equalē ꝓportionē acquirūt: igit̄̄
<
lb
/>
continuo b. potentia maiorē ꝓportionē acquirit ̄
<
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reſiſtentia eiuſdē b. / quod fuit probandū. </
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>
<
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<
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tia patet per hoc / ſi aliquid eſt alio maius quod-
<
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libet equale illi eſt maius eodem. </
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>
<
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xml:space
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">Et maior ꝓbatur /
<
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q2 continuo a. potentia velocius et per minorē reſi
<
lb
/>
ſtentiã mouetur ꝙ̄ ipſa b. potentia / vt patet ex caſu /
<
lb
/>
igitur continuo reſiſtentia ipſius a. maiorē ꝓpor-
<
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tionē acquirit ꝙ̄ reſiſtentia ipſius b. </
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<
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xml:space
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">Cõſequentia
<
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patet ex octaua ſuppoſitione quarti capitis ſecū-
<
lb
/>
de partis iuncto loco a fortiori: hoc addito / tam
<
lb
/>
a. quã b. equales partes illius medii tranſeūdo .etc̈
<
lb
/>
equalē reſiſtentiã acquirūt / vt ptꝫ ex primo correla
<
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rio ſuppoſitionis. </
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<
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xml:space
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">Sed iam ꝓbo minorē videlicet /
<
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continuo reſiſteutia ipſius a. et ipſa b. potentia
<
lb
/>
equalē ꝓportionē acquirunt: quia continuo reſiſtē
<
lb
/>
tia ipſius a. et ipſa a. potentia equalē ꝓportioneꝫ
<
lb
/>
acquirunt / vt ſupra argumentū eſt: et ipſa a. poten-
<
lb
/>
tia et b. potentia continuo itidē equalē ꝓpornalem
<
lb
/>
acquirūt / vt ptꝫ: igttur continuo reſiſtentia ipſius
<
lb
/>
a. et ipſa b. potentia equalē ꝓportionē acqtirūt / qḋ
<
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fuit ꝓbandum. </
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>
<
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xml:space
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">Et ſic ptꝫ ſecūda pars et ex hoc tota
<
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cõcluſio.
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xml:id
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xml:space
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preserve
">1. correĺ.
<
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/>
5. conclu
<
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/>
ſio calcu
<
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/>
latoris.</
note
>
</
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>
<
s
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xml:space
="
preserve
">¶ Ex quo ſequitur primo / ſi a. potentia
<
lb
/>
cõtinuo mouetur vniformiter per ſui continuum et
<
lb
/>
vniforme crementum tranſeundo c. mediū infinitū
<
lb
/>
vniformiter difforme vel ſaltē cuius quilibet pars
<
lb
/>
finita ſit vniformiter difformis b. potentia ei equa
<
lb
/>
lis poneretur in puncto remiſſiori eiuſdem medii
<
lb
/>
̄ ſit punctus in quo pro tunc eſt a. potentia: ipſa b
<
lb
/>
potentia eſto / continuo per infinitū tempus velo
<
lb
/>
cius moueatur uun̄ a. potentiã attinget: ceteris
<
lb
/>
iuuamentis et impedimentis deductis. </
s
>
<
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xml:id
="
N19E0B
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xml:space
="
preserve
">Patet cor-
<
lb
/>
relarium / quia alias eadem potentia vel equalis </
s
>
</
p
>
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