Apollonius <Pergaeus>, Apollonii Pergaei Conicorvm Lib. V. VI. VII. paraphraste Abalphato Asphahanensi : nunc primum editi ; additvs in calce Archimedis assvmptorvm liber, ex codibvs arabicis mss Abrahamus Ecchellensis Maronita latinos reddidit, Jo. Alfonsvs Borellvs curam in geometricis versione contulit & [et] notas vberiores in vniuersum opus adiecit

Table of contents

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[111.] Notæ in Propoſit. LXXII.
[112.] SECTIO DECIMAQVARTA Continens Propoſ. LXXIII. LXXIV. LXXV. LXXVI. & LXXVII. PROPOSITIO LXXIII.
[113.] PROPOSITO LXXIV.
[114.] PROPOSITO LXXV.
[115.] PROPOSITIO LXXVI.
[116.] PROPOSITIO LXXVII.
[117.] Notæ in Propoſit. LXXIII.
[118.] LEMMA XII.
[119.] Notæ in Propoſ. LXXIV.
[120.] Notæ in Propoſit. LXXV.
[121.] Notæ in Propoſ. LXXVI.
[122.] Notæ in Propoſit. LXXVII.
[123.] COROLLARIVM.
[124.] SECTIO DECIMAQVINTA Continens Propoſ. XXXXI. XXXXII. XXXXIII. Apollonij. PROPOSITIO XXXXI.
[125.] PROPOSITO XXXXII.
[126.] PROPOSITIO XXXXIII.
[127.] Notæ in Propoſ. XXXXI.
[128.] Notæ in Propoſ. XXXXII.
[129.] Notæ in Propoſit. XXXXIII.
[130.] SECTIO DECIMASEXTA Continens XVI. XVII. XVIII. Propoſ. Apollonij.
[131.] Notæ in Propoſit. XVI. XVII. XVIII.
[132.] SECTIO DECIMASEPTIMA Continens XIX. XX. XXI. XXII. XXIII. XXIV. & XXV. Propoſ. Apollonij. PROPOSITIO XIX.
[133.] PROPOSITIO XX. XXI. & XXII.
[134.] PROPOSITIO XXIII. & XXIV.
[135.] PROPOSITIO XXV.
[136.] Notæ in Propoſit. XIX.
[137.] Notæ in Propoſit. XX. XXI. XXII.
[138.] Notæ in Propoſ. XXIII. XXIV.
[139.] Notæ in Propoſ. XXXV.
[140.] SECTIO DECIMAOCTAVA Continens XXXII. XXXIII. XXXIV. XXXV. XXXVI. XXXVII. XXXVIII. XXXIX. XXXX. XXXXVII. XXXXVIII. Propoſit. Apollonij. PROPOSITIO XXXII.
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231193Conicor. Lib. VI. gulos æquales; ij verò anguli æquales ſunt angulis O, & N, cum baſes L M, &
A E parallelæ ſint contingentibus verticalibus eorundem ſegmentorum;
igitur an-
guli L O B, &
A N B æquales ſunt inter ſe; & propterea duorum ſegmentorũ
baſes L M, &
A E parallelæ ſunt inter ſe.
SECTIO OCTAVA
Continens Propoſit. XX. & XXI.
Apollonij.
PROPOSITIO XX.
SI in quibuslibet ſimilibus coniſectionibus A B C, & D E F
11a ductæ fuerint ad axes B O, E Q ordinatim applicatæ A C,
D F, N L, P M, quarum illæ, quæ ad eaſdem partes verticum
B, &
E ducuntur efficiant abſciſſas erectis proportionales, ſci-
licet I B ad B G ſit, vt K E ad E H, nec non L B ad B G, vt
M E ad E H:
Dico ſegmenta facta ab ordinatis ſimiliter poſi-
tis eſſe inter ſe ſimilia, ac ſimiliter poſita, ſcilicet N A ipſi P D,
atque A B ipſi D E, nec non N B ipſi P E.
261[Figure 261]
Sintque primò ſectiones parabolæ; & educamus N A ad B L in O, &
22b P D ad M E in Q.
Et quia G B ad B I eſt, vt H E ad E K, & B L ad
B G eſt vt M E ad E H;
ergo L B ad B I, nempe L N ad I A potentia
(19.
ex 1.) nempe L N ad O I eandem proportionem habet, quàm M E
3320. lib. 1.

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