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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[321.] In Sectionem VIII. Propoſit. XXXXIIII. XXXXV. & XXXXVI. LEMM A.X.
[322.] LEMM A XI.
[323.] LEMM A XII.
[324.] Notæ in Propoſit. XXXXIV. & XXXXV.
[325.] Notæ in Propoſit. XXXXVI.
[326.] SECTIO NONA Continens Propoſit. XXXXI. XXXXVII. & XXXXVIII.
[327.] PROPOSITIO XXXXI.
[328.] PROPOSITIO XXXXVII.
[329.] PROPOSITIO XXXXVIII.
[330.] In Sectionem IX. Propoſit. XXXXI. XXXXVII. & XXXXVIII. LEMMA. XIII.
[331.] LEMMA XIV.
[332.] LEMMA XV.
[333.] Notæ in Propoſit. XXXXI.
[334.] Notæ in Propoſit. XXXXVII.
[335.] Notæ in Propoſit. XXXXVIII.
[336.] SECTIO DECIMA Continens Propoſit. XXXXIX. XXXXX. & XXXXXI.
[337.] In Sectionem X. Propoſit. XXXXIX. XXXXX. & XXXXXI. LEMMA XVI.
[338.] LEMMA XVII.
[339.] LEMMA XVIII.
[340.] Notæ in Propoſit. XXXXIX.
[341.] Notæ in Propoſit. XXXXX.
[342.] Notæ in Propoſit. XXXXXI.
[343.] SECTIO VNDECIMA Continens Propoſit. XXXII. & XXXI. Apollonij.
[344.] Notæ in Propoſit. XXXI. & XXXII.
[345.] LIBRI SEPTIMI FINIS.
[346.] LIBER ASSVMPTORVM INTERPRETE THEBIT BEN-KORA EXPONENTE AL MOCHT ASSO Ex Codice Arabico manuſcripto SERENISS. MAGNI DV CIS ETRVRIÆ, ABRAHAMVS ECCHELLENSIS Latinè vertit. IO: ALFONSVS BORELLVS Notis Illuſtrauit.
[347.] Præfatio ad Lectorem.
[348.] MISERICORDIS MISERATORIS CVIVS OPEM IMPLORAMVS. LIBER ASSVMPTORVM ARCHIMEDIS, INTERPRETE THEBIT BEN-KORA, Et exponente Doctore ALMOCHTASSO ABILHASAN, Halì Ben-Ahmad Noſuenſi. PROPOSITIONES SEXDECIM.
[349.] PROPOSITIO I.
[350.] SCHOLIVM ALMOCHTASSO.
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320282Apollonij Pergæi ſecet axim in M, & I S ad axim perpendicularem, ſeu ordinatim applica-
tam, eum ſecans in S.
Et quia trianguli A C B duo latera A C, A B ſecan-
tur proportionaliter, ſcilicet bifariam in D, &
K; ergo I D parallela eſt baſi
C B:
eſtquè tangens I M parallela ipſi B A, cum ambo ad diametrum I L ſint
11Prop. 5.
lib. 2.
ordinatim applicatæ;
pariterquè I S parallela eſt B E ( cum ſint ad axim per-
pendiculares ) igitur triangula M I S, A B E ſimilia erunt;
pariterquè trian-
gula D I S, C B E erunt ſimilia:
& ideo M S ad S I erit vt A E ad E B, &
S I ad S D erit, vt B E ad E C:
quarè ex æquali ordinata M S ad S D ean-
dem proportionem habebit, quàm A E ad E C:
eſtquè quadratum I M ad qua-
dratum N D, vt M S ad S D;
ergo quadratum I M ad quadratum N D eſt,
22Prop. 4.
huius.
vt A E ad E C, &
c.
372[Figure 372]
SECTIO TERTIA
Continens Propoſit. Apollonij VIII. IX. X.
XI. XV. XIX. XVI. XVIII.
XVII. & XX.
VIII. IN hyperbola, vel ellipſi quadratum axis inclinati, ſiue
tranſuerſi ad quadratum ſummæ duarum diametrorum
coniugatarum eiuſdem ſectionis habebit eandem proportionem,
quàm productum præſectæ axis in ſuam interceptam compara-
tam ad quadratum ſummæ ſuæ interceptæ, &
potentis compa-
ratarum.

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