Biancani, Giuseppe
,
Aristotelis loca mathematica
,
1615
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206
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282</
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<
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">Sextus locus
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type
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(Rurſus
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abbr
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quoq;
">quoque</
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facilè perſuaderi poteſt ex mota duorurm circulo
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rum æqualium, nam quiſquis horum moueatur, oportet per maiorem ſemicirculum
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moueri, & quæcunque alia huiuſmodi constituta ſunt de lineis, fieri non poſſe, vt
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talis vllus motus peragatur, quin prius omnibus, & ſingulis interiectis occurrat.
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<
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id
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s.003452
">Atque hæc Mathematicorum ſcita, multò magis ab omnibus conceſſa ſunt, quàm
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illorum dicta.
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type
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<
s
id
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">Hæc eſt alia ratio, qua probat totam circuli periphæriam eſſe diuiduam.
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ſint enim duo circuli æquales primum in eo
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dem loco,
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abbr
="
vocenturq́
">vocenturque</
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; A, & B, deinde circu
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lus B, moueatur, & diſcedat à circulo A, ma
<
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nente; ſtatim
<
expan
abbr
="
namq;
">namque</
expan
>
pars egreſſa E F G, erit
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maior ſemicirculo, & ſemper fiet maior, ac
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maior. </
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<
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abbr
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atq;
">atque</
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in tali motu omnes partes egre
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dientis circuli ſecantur ab omnibus partibus
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circuli manentis. </
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>
<
s
id
="
s.003455
">vnde patet nihil eſſe in eo
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rum periphærijs, quod non diuidatur. </
s
>
<
s
id
="
s.003456
">nul
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lum igitur in eis eſt indiuiduum. </
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<
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id
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s.003457
">falluntur igitur aduerſarij.</
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283</
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<
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id
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">Septimus locus
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type
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(Quamuis autem ex confutatis nuper rationibus appareat, ne
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que probabile, neque neceſſarium eſſe lineas vllas indiuiduas extare, tamen ex ijs
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etiam, quæ deinceps ſubiungam, multò magis perſpicuum euadet. </
s
>
<
s
id
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">& primò quidem
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per ea, quæ Mathematici demonſtrant, at que addiſcenda proponunt, quæ mutare
<
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non decet, niſt probabiliores rationes habeamus. </
s
>
<
s
id
="
s.003462
">Nam neque lineæ, neque rectæ li
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neæ definitio cum inſecabili linea conſentit, vt quæ nec inter duo puncta extenſa
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ſit, nec medium vllam habeat.
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type
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<
s
id
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">Idem, ſed paulò mutatis verbis poſtea repetit, quæ fortè ab aliquo per
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errorem addita ſunt. </
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>
<
s
id
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">Verumenimuerò maximè conſiderandum eſt, quan
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tum hoc loco Ariſt. Mathematicis demonſtrationibus tribuat: quod dixe
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rim propter recentiores quoſdam, qui eò audaciæ deuenerunt, vt Euclidis
<
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firmiſſimas,
<
expan
abbr
="
atq;
">atque</
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>
Ariſtot. teſtimonio,
<
expan
abbr
="
veterumq́
">veterumque</
expan
>
; Philoſophorum omnium
<
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comprobatas, negare non verentur Demonſtrationes.</
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>
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<
s
id
="
s.003465
">Cæterùm Ariſt. iterum opinionem
<
expan
abbr
="
aſſerẽtium
">aſſerentium</
expan
>
lineas inſecabiles hoc mo
<
lb
/>
do confutat: nam ſi inquit, lineam illam, quam vocant inſecabilem, eſt non
<
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ſolum linea, ſed etiam linea recta, illi conueniret rectæ lineæ definitio, ſed
<
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nullo modo poteſt ci conuenire, ergò tollendæ ſunt de rerum natura huiuſ
<
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modi lineæ. </
s
>
<
s
id
="
s.003466
">Porrò definitio lineæ eſt, vt ſit longitudo latitudinis expers, &
<
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ſi recta ſit ex æquo ſua interiacet puncta extrema, ergò ipſa linea media erit
<
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inter duo indiuidua extrema puncta; at verò linea, quam ipſi volunt eſſe
<
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indiuiduum quoddam, qua ratione medium erit inter alia duo indiuidua?
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</
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>
<
s
id
="
s.003467
">ipſi enim
<
expan
abbr
="
vidẽtur
">videntur</
expan
>
velle iſtam lineam non habere medium vllum, ſi enim con
<
lb
/>
cederent habere medium, iam poſſet in medio ſecari, quod ipſi nequaquam
<
lb
/>
concederent: patet igitur definitionem lineæ minimè illi conuenire, & pro
<
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pterea
<
expan
abbr
="
neq;
">neque</
expan
>
eſſe inter lineas enumerandam.</
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284</
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<
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">Octauus locus
<
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type
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(Deinde omnes lineæ commenſurabiles erunt: nam omnes ab in
<
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diuiduis lineis dimetientur, quæqué; longitudine, quæqué; potentia ſunt commenſurabi
<
lb
/>
les. </
s
>
<
s
id
="
s.003471
">indiuiduæ autem lineæ ſibi ipſis commenſurabiles ſunt longitudine, cum inter ſe
<
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fiat æquales; quare potentia quoque, quod ſi hoc eſt, diuiduum erit quadratum.
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type
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