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# Title: [Problema Austriacum Plus Ultra Quadratura Circuli] Problema Avstriacvm Plvs Vltra Qvadratvra Circvli (shelfmark Leibn. Marg. 230, Stück 1)
# Folio 756, page id 1815201908:0813
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IIdem policis:
DVCEYS PL ANI
eROPOSITIO LXZI
Dico FO semiparabolam ductam in se, x quari semlcireulo AIB in
se ductorna cum criansulo ADB ducto in (c.
Demonstratio.
irculum a inea AB, luper qua descripto quoliis rectangu-
slO AF: FanE H IL rectangulis aequalia rectan suta O PK; CrUNEK K
araotu. aad parabolam.
Dicocorpus orrum ex ductu C FI, plani in planum LH, a quari corpo.
ri ex FTI plano ducco in KL.
Demonstratio.
Voniam Ct L Fcctangula X
qualia siinc rectangulis HIL,
eric C (ad TFT, ve F. Iad TR. a
ad RI: vndC CFTK I rectangU-
sis egualia so rectaguta FTLL A
inde cum A B alcicudo (IC con
munis, corpus ex ductu CFTpla
i in planum LK,  xquale ell
DEanum F C in le ductu aequale eA F F, ducto in L H d LC ducto in se: sedFF.
ductu in C FX quale est PC ducto in Pesigitur F C ductum in se aquatuF L. C, lG
ductis in (e: vnde cum A B alticudo sic communis ex balis corporis quod orieur ex
FC plano in se ducto aequasBanbus corponi productorum ex C C L. G planisin
se ductis, eric A D B parabiola in se dueta aequalis lemicirculo AC B in (C; _ ADB
criangulo in se ducto. Quo derac demonstrandum.
12. Lib. L
118 3.
cor
eRODOSTTIO LAAII
dividendo OHL adFTE, vE L. R
e exat de orultanidum.
12d b0nC, oButo st a clurricu
ex duetu X
B46. tot.