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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[361.] SCHOLIVM PRIMVM ALKAVHI.
[362.] SCHOLIVM SECVNDVM ALKAVHI.
[363.] Notæ in Propoſit. V.
[364.] PROPOSITIO VI.
[365.] Notæ in Propoſit. VI.
[366.] PROPOSITIO VII.
[367.] SCHOLIVM ALMOCHTASSO.
[368.] PROPOSITIO VIII.
[369.] SCHOLIVM ALMOCHTASSO.
[370.] Notæ in Propoſit. VIII.
[371.] PROPOSITIO IX.
[372.] PROPOSITIO X.
[373.] PROPOSITIO XI.
[374.] SCHOLIVM ALMOCHTASSO.
[375.] PROPOSITIO XII.
[376.] SCHOLIVM ALMOCHTASSO.
[377.] Notæ in Propoſit. XII.
[378.] PROPOSITIO XIII.
[379.] PROPOSITIO XIV.
[380.] PROPOSITIO XV.
[381.] Notæ in Propoſit. XV.
[382.] PROPOSITIO XVI.
[383.] PROPOSITIO XVII.
[384.] FINIS.
[385.] Illuſtriſſime, ac Reuerendiſs, Dom.
[386.] Reuerendiſs. Pater Domine.
[387.] REGISTRVM.
[388.] Errata in figuris.
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page |< < (393) of 458 > >|
432393Aſſumpt. Liber.& angulus B eſt communis,
497[Figure 497] ergo A G B æqualis eſt an-
gulo C D B recto, ergo A
G eſt perpendicularis ſuper
B C.
Hoc præmiſſo repe-
tamus ex propoſit.
quàm
attulit Archimedes D A,
A B, &
perpendiculares D
C, A I, B F, B I, &
li-
neam D I.
iam ſi B I D
non fuerit linea recta, iun-
gamus B G D rectam, erit
angulus A G B rectus ex
præmiſſa propoſitione, &

498[Figure 498] erat angulus A I B rectus,
ergo internus in triangulo
B I G æqualis eſt oppoſito
externo, &
hoc eſt abſur-
dum, igitur linea B I D
eſt recta.
Deinde attulit
duas propoſitiones ex in-
terpretatione Alkauhi, qua-
rum prima eſt hæc.
SCHOLIVM PRIMVM ALKAVHI.
S I non fuerint duo ſemicirculi tangentes, ſed mutuo ſe ſecantes,
&
perpendicularis fuerit in loco mutuæ ſectionis, idem ſe-
quitur.
Sint itaque ſemicirculi A B C, A D E, F D C, & duo illi ſemicir-
culi ſe mutuo ſecantes in D, &
B G perpendicularis ſuper A C inſiſtat,
499[Figure 499]

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