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# Title: [Lectiones XVIII, Cantabrigiae in Scholis publicis habitae] Lectiones XVIII, Cantabrigiæ in Scholis publicis habitæ (shelfmarks Leibn. Marg. 0; ZEN Leibn. Marg. 0)
# Folio 72, page id 797435492:0120
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to I C F. Z.
cum cum runc retlexi conrergenres appellant; e inago distinctior Z
post oculum conlistat. Quin ejulmodi complures apparentius oblerra-
bitisipli li lubet, ec ex his deduceris 1
ZVI. PExterea, dato oculi centro, velut O, quorodo destenandus
sit ipsum pervadens reflexus (ceu. N ∞) C supra cractatis aliguatenus
adparet. nec inibi generalius expolirum Problema libet hic repo.
nerC.
XVII. Oiineriam amedicta recensendo constabit, ( bisecentur subrensa
PN in F; _ subrensa N ∞ in F; ac HAE FZ. Z. N:: F A. NA;
radiantis imaginem, risus O respectu, circa punctum Z consiltere.
plane similis est discursus, quortum nonvo Ccov. 
ZVIII. Superest tantim, ut de posteriore quem innuebamus casu
paucula subdamus. F0, POnatuE A C = AC == Ay; inde quilibet
incidens caro C:B radius ipsâ AC minor eric; sic calis alicujus
AN redlexus N _; qui nempe retro productus cum axc conveniee;
puta ad K. Friam hic praecedentibus conformia deprehendeneur,
ec suppari demonstrabuntur modo; qualia lunt nempe
ZIZ. AC. AN:: CK. KH.
2X. AC9- ANg. CN9:: AC. CK.
ZXI. Radii A R ipCO AH obliquioris retexUS CUM aXC CONCUrrAL
in L; erit CR. CL:: ACg - ARg. AC9-- AN9. ac inde
ZXII. CR ICL.
XXIII. Incidencium rectiorum (pares, ut superius, areus in re-
Acctente sumendo) refexi concursus habent a se minoribus incervallis
diljunctos. txc, inquam, ec alia quoad reliquoscalus prxmonstra
sis contormis, vel agnata pertimili quoque quoad hunc calum metho-
do comprobantur. quare pluribus tempero; sed enim id quod ubi-
que pracipuum etiam hic exerrius oltendam; praemisso tamen hoc, ad
Sequemia quoque concidenda non inutili, Lemmatio:
Z_IV. Decur recta BC, in ea prorracta delionandum elt punctum,
selurZ; ita ut BZ ad CZ datam obtineat rationem, puta Iad R. 1
lolocile he exsquimur. Il
1. St
218. 103.
S204