Alvarus, Thomas
,
Liber de triplici motu
,
1509
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Primi tractatus
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0081
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81
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<
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xml:space
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">Probat̄̄: ſit b. potētia que c. mediū inuariatū trã
<
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ſeūdo vniformiter cõtinuo īuariata ad nõ gradū
<
lb
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remittit motū ſuū: et ſit a. potētia maior (q̄cū ſit
<
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/>
illa) que ab eodē puncto c. medii īcipiat moueri cū
<
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b. potētia a ꝓportione in h. ꝓportiõe maiori quã
<
lb
/>
ſit ꝓportio a qua excluſiue incipit moueri b. et cõ-
<
lb
/>
tinuo moueat̄̄ a. potētia per ſui variationē in h. ꝓ-
<
lb
/>
portione velociꝰ ipſa b. potetia / et tūc dico / a po-
<
lb
/>
tētia vniformiṫ cõtinuo remittit motū ſuū ad g̈dū
<
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tranſeūdo c. mediū per ſui cõtinuã intenſionē. </
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<
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xml:space
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">Qḋ
<
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ſic ꝓbatur: q2 a. potētia ↄ̨tinuo vniformiṫ remittit
<
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motū ſuū tranſeūdo c. mediū: et per nullū tempus
<
lb
/>
ſtat īuariata aut remittit potētiã ſuã: igit̄̄ cõtinuo
<
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/>
vniformiter remittit motū ſuū trãſeūdo c. mediū
<
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per ſui cõtinuã intenſionē. </
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<
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N17F6F
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xml:space
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">Cõſequentia ptꝫ: et pro
<
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batur maior: q2 a. potentia cõtinuo in h. ꝓportiõe
<
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/>
velocius mouetur quã b. potentia: vt ptꝫ ex hypo-
<
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theſi: et b. potētia cõtinuo vniformiter remittit mo
<
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tum ſuū: ergo a. potentia cõtinuo vniformiter re-
<
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mittit motū ſuū. </
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<
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">Patet cõſequentia / vt in ꝓbatiõe
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cõcluſiõis. </
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<
s
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xml:space
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">Iam ꝓbatur minor / q2 ſi a. per aliquod
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tēpus ſtat īuariata, aut remittit potentiã ſuã, det̄̄
<
lb
/>
illud tēpus: et ſit g. in quo a. potentia adequate ꝑ-
<
lb
/>
tranſit .ef. partē: et in eodē g. tēpore b. potētia per
<
lb
/>
trãſeat d. partē: et manifeſtū eſt / ipſius .ef. partis
<
lb
/>
ad partē d. eſt proportio h. cū ſemꝑ a. moueatur in
<
lb
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h. ꝓportiõe velocius / vt ptꝫ ex hypotheſi. </
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<
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xml:space
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<
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ſito arguitur ſic / latitudinis deperdite ab ipſa b.
<
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potentia tranſeūdo .ef. partē adequate ad latitu-
<
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/>
dinē motus deperditã ab eadē b. potētia tranſeū-
<
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do d. partē adequate in g. tēpore eſt maior ꝓpor-
<
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tio quã h. / igitur latitudinis deperdite ab a. potē-
<
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tia īuariata vel remittente potentiã ſuã tranſeun-
<
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do .ef. partē adequate ad latitudinē deperditã ab
<
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/>
ipſa b. potētia tranſeūdo d. partē adequate in g.
<
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tēpore eſt maior ꝓportio quã h. / ſed conſequens eſt
<
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falſum: igitur illud ex quo ſequitur. </
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<
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<
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ptꝫ vt ſupra: et antecedens ſimiliter cum falſitate
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conſequentis. </
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<
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s
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">q̈drageſi
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ma ſecū-
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da cõclu-
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ſio calcu.</
note
>
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<
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">Secūda ↄ̨̨cluſio. </
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<
s
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N17FBF
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xml:space
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">Ubi aliqua potētia
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nõ variata tranſeūdo aliquod mediū īuariatum
<
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vniformiter cõtinuo ad nõ gradū remittit motum
<
lb
/>
ſuū: aliqua potentia maior per cõtinuã eiꝰ remiſ-
<
lb
/>
ſionē tranſeūdo idē mediū remittit motū ſuū vni-
<
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formiter cõtinuo ad nõ gradū. </
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<
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xml:space
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">Probatur: ſit b. po
<
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tentia que nõ variata c. mediū īuariatū tranſeūdo
<
lb
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vniformiter cõtinuo motū ſuū remittat ad nõ gra
<
lb
/>
dum: et ſit a. potentia que habet in duplo maiorē
<
lb
/>
ꝓportionē ad punctū initiatiuū c. medii in extre-
<
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/>
mo remiſſiori quã habeat b. potentia ad punctuꝫ
<
lb
/>
mediū eiuſdem c. medii: et ponatur b. potentia ad
<
lb
/>
punctū mediū ipſius c. medii: et a. potētia in pūcto
<
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/>
initiatiuo eiuſdē c. medii remiſſiori: et incipiant in
<
lb
/>
eodē inſtanti moueri ab illis punctis verſus extre
<
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/>
mū intēſius: et taliter varietur a. cõtinuo mouea
<
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/>
tur in duplo velocius quã ipſa b. potentia: et tunc
<
lb
/>
dico / ipſa potentia a. cõtinuo vniformiter motū
<
lb
/>
ſuū et hoc vſ ad nõ gradū remittit per continuã
<
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/>
eius remiſſionē. </
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<
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">Quod ſic ꝓbatur: q2 a. potētia cõ
<
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tinuo remittit motū ſuū vniformiter c. mediū trã-
<
lb
/>
ſeundo: et per nullū tēpus ſtabit īuariata in poten
<
lb
/>
tia aut intendet potentiã ſuã: igitur a. potētia trã
<
lb
/>
ſeūdo c. mediū īuariatū cõtinuo vniformiter remit
<
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tit motū ſuū per continuã eius remiſſionē. </
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<
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tia ptꝫ ex ſe: et maior iam arguta eſt in precedenti
<
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concluſione: et minor ꝓbatur / q2 ſi per aliquod tē-
<
lb
/>
pus potentia a. ſtat inuariata, aut intendit potē-
<
lb
/>
tiam ſuã, detur illud tēpus, et ſit g. in quo a. poten
<
lb
/>
tia pertranſeat adequate .ef. partē: et b. potentia
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Capitulum octauū.
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d. partem adequate: et manifeſtum eſt / ipſius .ef.
<
lb
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partis ad ipſam d. partē eſt proportio dupla cum
<
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a. potētia continuo moueatur in duplo velociꝰ b. /
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ex hypotheſi </
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<
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">Quo poſito arguitur ſic / latitudinis
<
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motus deperdite ab ipſa potentia b. tranſeundo
<
lb
/>
ef. partem ad latitudinē deperditam ab eadē po-
<
lb
/>
tētia b. tranſeūdo d. partem adequate in g. tēpo-
<
lb
/>
re nõ eſt proportio dupla nec maior: igitur latitu-
<
lb
/>
dinis deperdite ab a. potentia inuariata vel inten
<
lb
/>
dente potentiã ſuam tranſeundo .ef. partem ad la
<
lb
/>
titudinē deperditam a b. potentia tranſeundo d.
<
lb
/>
partem in g. tempore adequate non eſt proportio
<
lb
/>
dupla nec maior: ſed conſequēs eſt falſum: igitur
<
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illud ex quo ſequitur. </
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<
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<
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oēs potentie inuariate idem mediū īuariatū tran
<
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/>
ſeuntes .etc̈. equalē latitudinem motus deperdunt
<
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/>
et ſi aliqua potentia mediū inuariatum tranſeun-
<
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/>
do remittat motum ſuū intendens potentiã ſuam:
<
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/>
minorem latitudinem motus deperdit quam ſi ſta
<
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ret idem mediū tranſeundo .etc̈. / vt conſtat: et argu-
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tum eſt ſupra. </
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<
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">Sed falſitas conſequētis probatur /
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quia ſi latitudinis motus deperdite ab ipſa a. po
<
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/>
tentia tranſeundo .ef. partem in g. tempore ade-
<
lb
/>
quate ad latitudinem deperditam ab ipſa b. potē
<
lb
/>
tia tranſeundo d. partem adequate in eodē g. tem
<
lb
/>
pore nõ eſt proportio dupla nec maior dupla: et a
<
lb
/>
principio latitudinis motus ipſius a. potentie ad
<
lb
/>
latitudinē motus ipſius b. potentie quarū vtra
<
lb
/>
remittitur erat ꝓportio dupla: ergo facta tali re-
<
lb
/>
miſſione latitudinis motus ipſius a. ad latitudinē
<
lb
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motus ipſius b. nõ eſt proportio dupla: quod eſt
<
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contra hypotheſim. </
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<
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">Cõſequentia patet ex primo
<
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correlario quinte concluſionis ſecundi capitis ſe-
<
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cunde partis. </
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<
s
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N18056
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xml:space
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">Iam probatur antecedens videlicet /
<
lb
/>
latitudinis deperdite ab ipſa potentia b. tran-
<
lb
/>
ſeundo .ef. partem ad latitudineꝫ deperditam ab
<
lb
/>
eadem potentia b. in g. tempore adequate non eſt
<
lb
/>
proportio dupla, aut maior dupla: quia ipſiꝰ .ef.
<
lb
/>
partis ad ipſam d. parteꝫ eſt proportio dupla ex
<
lb
/>
caſu: et ipſa potentia b. tranſeundo quãlibet par-
<
lb
/>
tem exceſſus quo .ef. excedit d. minorē ipſa d. par-
<
lb
/>
te mouetur cum minori reſiſtentia quam quãlibet
<
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/>
partem equalem ipſius d. partis tranſeundo: cum
<
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/>
q̄libet pars exceſſus quo .ef. pars excedit d. partē
<
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/>
minꝰ diſtet a. puncto remiſſiori initiatiuo c. medii
<
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quã aliqua pars ipſiꝰ d. partꝪ. </
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<
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xml:space
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">(Signo em̄ exceſſū
<
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ſus punctū īitiatiuū c. medii minꝰ reſiſtentē quē
<
lb
/>
exceſſū ſemꝑ voco f) / igit̄̄ latitudīs deꝑdite ab ipſa
<
lb
/>
b. potētia trãſeūdo .ef. partē adeq̈te ad latitudinē
<
lb
/>
deꝑditã ab eadē potētia trãſeūdo d. partē adeq̈te
<
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/>
in g. tꝑe nõ eſt ꝓportio dupla aut maior dupla / qḋ
<
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fuit īferendū. </
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<
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<
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</
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<
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xml:space
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">Sed q2 cõcluſio ſupponit potētiã a. eſſe maiorē b. /
<
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ideo reſtat illud ꝓbare. </
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<
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xml:space
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">Qḋ ſic ꝓbo / q2 a. ꝑ ↄ̨tinuã
<
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ſui remiſſionē ꝑtrãſit totū c. mediū in tēpore ī quo
<
lb
/>
adequate b. ꝑtrãſit eiuſdē c. medii īuariati medie-
<
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tatē: igitur ipſa a. potentia eſt maior b. potentia.
<
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</
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<
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<
lb
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quia a. in duplo velocius cõtinuo mouetur quam
<
lb
/>
b. / vt patet ex hypotheſi: et a. incipit moueri a. pun-
<
lb
/>
cto iniciatiuo c. medii: et b. a puncto medio eiuſdeꝫ
<
lb
/>
c. medii in eodē inſtanti cum ceteris poſitꝪ in caſu:
<
lb
/>
igitur eque cito erunt in termino ipſius c. medii: et
<
lb
/>
per conſequens in tēpore in quo adequate b. per-
<
lb
/>
tranſit vnam medietatem c. medii inuariati a. ꝑ-
<
lb
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trãſit totū c. mediū / quod fuit ꝓbandū. </
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<
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">Q, autē a.
<
lb
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potētia remittat motū ſuū ad nõ gradū / ꝓbat̄̄ / qm̄
<
lb
/>
cõtinuo ex hypotheſi inter motū ipſius a. et motū
<
lb
/>
ipſius b. eſt proportio dupla vtro illorū motuū </
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