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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[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.
[141.] PROPOSITIO XXXIII. XXXIV.
[142.] PROPOSITIO XXXV.
[143.] PROPOSITIO XXXVI.
[144.] PROPOSITIO XXXVII. XLVI.
[145.] PROPOSITIO XXXVIII.
[146.] PR OPOSITIO XXXIX.
[147.] PROPOSITIO XXXX.
[148.] PROPOSITIO XXXXVII.
[149.] PROPOSITIO XXXXVIII.
[150.] Notæ in Propoſit. XXXII.
[151.] Notæ in Propoſit. XXXIII. XXXIV.
[152.] Notæ in Propoſit. XXXV.
[153.] Notæ in Prop. XXXVI.
[154.] Notæ in Prop. XXXVIII.
[155.] Notæ in Propoſit. XXXIX.
[156.] Notæ in Propoſit. XXXXVIII.
[157.] LIBRI QVINTI FINIS.
[158.] APOLLONII PERGAEI CONICORVM LIB VI. DEFINITIONES. I.
[159.] II.
[160.] III.
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278240Apollonij Pergæi323[Figure 323] ad Z b, & ad Z a eſt eadem; & propterea Z b æqualis eſt Z a, quod eſt
abſurdum.
Ponamus iam quadratum F G ad G H in G I maiorem proportionem
habere, quàm D B ad B E.
Dico in cono H F I exhiberi non poſſe ſe-
ctionem æqualem hyperbolæ A B.
Si enim exhiberi poſſet illius axi ali-
qua parallela reperiretur vt F N:
& quadratum F N ad I N in N H ma-
iorem proportionem habens, quàm quadratum F G ad quadratum G H,
erit vt D B ad B E;
quæ minor eſt proportione quadrati F G ad qua-
dratum G H:
quod eſt abſurdum. Non ergo reperitur in cono H F I ſe-
ctio æqualis hyperbolæ A B.
Et hoc erat oſtendendum.
PROPOSITIO XXVIII.
SIt iam ſectio elliptica A B, cuius axis tranſuerſus B D, &
erectus illius B E, &
circa coni triangulum H F I deſcri-
11a324[Figure 324]

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