11.01.2015 Views

Apollonii Pergaei quae graece exstant cum ... - Wilbourhall.org

Apollonii Pergaei quae graece exstant cum ... - Wilbourhall.org

Apollonii Pergaei quae graece exstant cum ... - Wilbourhall.org

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

CONICORUM LIBER IV. 89<br />

iam uero ABFJ sectionem AB in A, B secet,<br />

sectionem autem F in uno Fj ut in secunda figura<br />

est;<br />

itaque EZ <strong>cum</strong> F<br />

non concurret [prop.<br />

XLl]. sin EZ <strong>cum</strong><br />

AB concurrit, in uno<br />

puncto solo concurrit.<br />

si enim in duobus <strong>cum</strong><br />

AB concurrit, sectio<br />

ei opposita ABF <strong>cum</strong><br />

altera opposita F non<br />

concurret [prop. XLIII] ; supposuimus autem, eam<br />

in uno puncto F concurrere.<br />

sin, ut est in figura tertia, ABF sectionem ABE<br />

in duobus punctis A, B secat, EZ autem <strong>cum</strong> ABE<br />

concurrit, <strong>cum</strong> ^ non concurret [prop. XLI], et <strong>cum</strong><br />

ABE concurrens in pluribus punctis quam in duobus<br />

non concurret<br />

[prop.<br />

XXXYII].<br />

sin, ut est in<br />

figura quarta,<br />

ABFA utramque<br />

in uno puncto secat,<br />

EZ <strong>cum</strong> neutra<br />

in duobus punctis concurret [prop. XLII]. ergo<br />

propter ea, <strong>quae</strong> diximus, et conuersa sectiones ABFA,<br />

rz <strong>cum</strong> sectionibus iis oppositis BE, EZ in pluribus<br />

punctis non concurrent quam in quattuor.^)<br />

1) Uerba mGts lin. 19 — xiGGccqa lin. 22 inutilia sunt et<br />

suspecta; nam ordo litterarum parum rectus est, nec avxi-<br />

Gxqotpu propositionum hic lo<strong>cum</strong> habent.

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!