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

Table of contents

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[131.] THEOREMA XXXVII. PROPOS. XL.
[132.] SCHOLIVM.
[133.] THEOREMA XXXVIII. PROPOS. XLI.
[134.] THEOREMA XXXIX PROPOS. XLII.
[135.] THEOREMA XL. PROPOS. XLIII.
[136.] THEOREMA XLI. PROPOS. XLIV.
[137.] THEOREMA XLII. PROPOS. XLV.
[138.] THEOREMA XLIII. PROPOS. XLVI.
[139.] THEOREMA XLIV. PROPOS. XLVII.
[140.] COROLLARIVM.
[141.] SCHOLIVM.
[142.] LEMMA.
[143.] COROLLARIVM.
[144.] THEOREMA XLV. PROPOS. XLVIII.
[145.] COROLLARIVM.
[146.] THEOREMA XLVI. PROPOS. XLIX.
[147.] THEOREMA XLVII. PROPOS. L:
[148.] COROLLARIVM I.
[149.] COROLLARIVM II.
[150.] SCHOLIVM.
[151.] Finis Primi Libri.
[152.] CAVALER II LIBER SECVNDVS.
[153.] DIFINITIONES. I.
[154.] COROLLARIVM.
[155.] II.
[156.] COROLLARIVM.
[157.] III.
[158.] COROLLARIVM.
[159.] IV.
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page |< < (119) of 569 > >|
139119LIBER II.
THEOREMA VII. PROPOS. VII.
Sint nunc parallelogrammum, HX, æquale parallelogrammo, A
D
.
Dico, vt, VX, ad, BD, ita eſſe, CO, ad, RZ, vel, CD, ad,
RX
, cum ſunt æquiangula.
Quoniam ergo parallelogrammum, H
X
, eſt æquale parallelogrammo, AD, erit ad illud, vt, CO, ad,
CO
, vel vt, CD, ad, CD, ideſt (de foris ſumpto, RZ, vel pro
ſecunda
ratione, RX,) inratione compoſita ex ea, quam habet, C
33Defin. 12.
lib
. 1.
O, ad, RZ, &
ex ea, quam habet, RZ, ad, CO, vel ex ea, quam
habet
, CD, ad, RX, &
, RX, ad, CD, verum, HX, ad, AD,
44Exantec. habet etiam rationem compoſitam ex ea, quam habet, VX, ad, B
D
, &
, RZ, ad, CO, vel, RX, ad, CD, cum ſunt æquiangula,
ergo
duæ rationes, CO, ad, RZ, &
, RZ, ad, CO, vel, CD, ad,
RX
, &
, RX, ad, CD, componunt eandem rationem, quam iſtę
duæ
.
ſ. VX, ad, BD, & , RZ, ad, CO, vel, RX, ad, CD, eſt
autem
communis ratio, quam habet, RZ, ad, CO, vel, RX, ad,
CD
, ergo reliqua ratio .
ſ. quam habet, VX, ad, BD, erit

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