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

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308270Apollonij Pergæi Conicor. Lib. VI.
Quoniam circa communem axim D
356[Figure 356] A conſtitui poßunt parabolæ, circulus,
infinitæ
hyperbolæ, &
infinitæ ellipſes
22Prop. 17.
addit
.
huius
.
habentes ſemilatus rectum axis æqualẽ
ſingulari
breuiſecanti D A in ſectione
conica
B A C educto, &
omnes ab-
33Prop. 21.
addit
.
huius
.
ſcindunt coniſectionem B A C in A.
Ergo patet propoſitum.
Nam quælibet coniſectio, cuius ſemie-
rectum
axis minus eſt breuiſecante ſingulari D A intrinſecus tangit ſectionem
44Prop. 18.
addit
.
huius
.
B A C in A, &
ſi ſemierectum maius fuerit eadem D A extrinſecus eandem
ſectionem
B A C continget, neque vnquam ceſſant prædicti contactus extrin-
55Prop. 19.
addit
.
huius
.
ſeci, vel intrinſeci quouſque ſemierectum axis efficitur æquale breuiſecanti D
A
:
at tunc non amplius contingit, ſed ſecat eam in A. Quare patet propoſi-
66Prop. 21.
addit
.
huius
.
tum.

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