Cavalieri, Buonaventura, Geometria indivisibilibvs continvorvm : noua quadam ratione promota

Table of contents

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[451.] THEOREMA XXVI. PROPOS. XXVIII.
[452.] COROLLARIVM.
[453.] THEOREMA XXVII. PROPOS. XXIX:
[454.] A. COROLL. SECTIO I.
[455.] B. SECTIO II.
[456.] C. SECTIO III.
[457.] D. SECTIO IV.
[458.] E. SECTIO V.
[459.] THEOREMA XXVIII. PROPOS. XXX.
[460.] A. COROLL. SECT IO I.
[461.] B. SECTIO II.
[462.] C. SECTIO III.
[463.] D. SECTIO IV.
[464.] E. SECTIO V.
[465.] THEOREMA XXIX. PROPOS. XXXI.
[466.] THEOREMA XXX. PROPOS. XXXII.
[467.] COROLLARIVM.
[468.] THEOREMA XXXI. PROPOS. XXXIII.
[469.] THEOREMA XXXII. PROPOS. XXXIV.
[470.] COROLLARIVM.
[471.] THEOREMA XXXIII. PROPOS. XXXV.
[472.] COROLLARIVM.
[473.] THEOREMA XXXIV. PROPOS. XXXVI.
[474.] THEOREMA XXXV. PROPOS. XXXVII.
[475.] THEOREMA XXXVI. PROP. XXXVIII.
[476.] THEOREMA XXXVII. PROP. XXXIX.
[477.] THEOREMA XXXVIII. PROP. XL.
[478.] COROLLARIVM.
[479.] THEOREMA XXXIX. PROPOS. XLI
[480.] THEOREMA XL. PROPOS. XLII.
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349329LIB ER IV. quadrata, AM, ad rectangula ſub, AE, EH, ſunt vt quadratum,
DM
, ad rectangulum, DEM, rectangula verò ſub, AE, EH, ad
rectangula
ſub ſemiparabola, BDE, &
ſub, EH, ſunt vt, AE, ad
ſemiparabolam
, BDE, (quia, EH, eſt parallelogrammum) idelt
ſexquialtera
.
i. vt, DE, ad {2/3}. DE, . i. vt rectangulum ſub, DEM,
(ſumpta, EM, communi altitudine) ad rectangulum ſub {2/3}, DE, &

ſub
, EM, ergo, ex æquali, omnia quadrata, AM, ad rectangula
ſub
ſemiparabola, BDE, &
ſub, BM, erunt vt quadratum, DM,
11Coroll. 1.
26
. l. 2.
ad rectangulum ſub {2/3}.
DE, & ſub, EM; ad eadem verò bis ſumpta
erunt
, vt idem quadratum, DM, ad rectangulum bis ſub {2/3}.
DE, . i.
ſub ſexquitertia, DE, ſemel, & ſub, EM, ergó, colligendo, omnia
quadrata
, AM, ad omnia quadrata, BM, &
ad omnia quadrata ſe-
miparabolæ
, BDE, cum rectangulis bis ſub, HE, &
ſemiparabo-
la
, BDE, ideſt ad omnia quadrata figuræ, HBDM, erunt vt qua-
dratum
, DM, ad quadratum, ME, &
dimidium quadrati, ED,
cum
rectangulo ſub ſexquitertia, DE, &
ſub, EM, ſimul iuncta quæ
nobis
erant demonſtranda.
_H_Inc apparet, quod methodo huius in Propoſ. 32. oſtendi poterat
omnia
quadrata, AF, ad omnia quadrata figuræ, CBDF, eſſe
vt
24.
ad 17. prius demonſtrando omnia quadrata, AF, ad omnia qua-
drata
figuræ, CBDF, eſſe vt quadratum, DF, ad quadratum, FE, {1/2}.
qua-
drati
, ED, &
rectangulum ſub ſexquitertia, DE, & ſub, EF, vt nem-
24.
ad 17. veluti calculanti patebit, quod bic appoſui, vt eam ratio-
nem
etiam hoc pacto teneamus.
THEOREMA XXXIII. PROPOS. XXXV.
IN eadem anteced. Propoſ. figura oſtendemus omnia
quadrata
, BM, ad omnia quadrata figurę, BFMH, eſſe
vt
quadratum, EM, ad quadratum, MF, cum rectangulo ſub
{2/3}.
EF, & ſub, FM, vna cum {1/6}. quadrati, EF, regula eadem
retenta
.
Omnia . n. quadrata figuræ, BFMH, per rectam, CF, diuidun-
tur
in omnia quadrata, CM, in omnia quadrata trilinei, BCF, &

22D. Corol.
23
. l. 2.
in rectangula bis ſub trilineo, BCF, &
ſub, CM; ad horum ergo
fingula
comparemus omnia quadrata, BM;
hæc igitur ad

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