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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[161.] IV.
[163.] VI.
[164.] VII.
[165.] VIII.
[166.] IX.
[167.] NOTÆ.
[168.] MONITVM.
[169.] SECTIO PRIMA Continens Propoſit. I. II. IV. & X. PROPOSITIO I.
[170.] PROPOSITIO II.
[171.] PROPOSITIO IV.
[172.] PROPOSITIO X.
[173.] Notæ in Propoſit. I.
[174.] Notæ in Propoſit. II.
[175.] Notæ in Propoſit. IV.
[176.] Notæ in Propoſit. X.
[177.] SECTIO SECVNDA Continens Propoſit. III. VI. VII. & IX. PROPOSITIO III.
[178.] PROPOSITIO VI.
[179.] PROPOSITIO VII.
[180.] PROPOSITIO IX.
[181.] Notæ in Propoſit. III.
[182.] Notæ in Propoſit. VI.
[183.] Notæ in Propoſit. VII.
[184.] Notæ in Propoſit. IX.
[185.] LEMMAI.
[186.] SECTIO TERTIA Continens Propoſit. V. & VIII. PROPOSITIO V.
[187.] PROPOSITIO VIII.
[188.] Notæ in Propoſit. V.
[189.] Notæ in Propoſit. VIII.
[190.] SECTIO QVARTA Continens Propoſit. XI. XII. XIII. & XIV. PROPOSITIO XI.
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page |< < (127) of 458 > >|
165127Conicor. Lib. V. 160[Figure 160]
PROPOSITIO XXXVIII.
SI linea maxima, aut breuiſſima,
161[Figure 161] vt C B, producatur extra ſe-
ctionem A B ad D, erit eius portio
B D extra ſectionem abſciſſa mini-
ma omnium linearum D E, D F,
D A egredientium ab illo pnncto ad
circumferentiam ſectionis:
reliqua-
rũ vero propinquior, illi minor eſt
remotiore.
Educatur B G, tangens ſectionem in
11a B;
erit D B minor, quàm D H; ergo mul-
to minor eſt, quàm D E:
& iungamus
F E, F A, erit angulus F E D obtuſus,
&
propterea D E minor eſt, quàm D F,
&
ſimiliter D F minor, quàm D A; quod
erat oſtendendum.

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