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# Title: [Problema Austriacum Plus Ultra Quadratura Circuli] Problema Avstriacvm Plvs Vltra Qvadratvra Circvli (shelfmark Leibn. Marg. 230, Stück 1)
# Folio 763, page id 1815201908:0820
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H p
DC
106
D
EXI
CT
1IIIII
211
IN PL ANV H
Demonstratio.
DLanum BC ductum H CB peF prxcedentem aquale es M C ducto in CF:
sed B C ductum in C B xquale eA BK uc CD, ia Can LC adel
in CB d MC doc IH CH aequacuT MC ducco in CN _ MC ducto in NF.
loicur CD Cam RC In CB, aequatuE MC in CN, cum MC in NF. elt
AUTOMPTATCrCa KC ductum in C D ottentum : xqualeM C ducto in C N; ablaris 2 67. huius.
isicur xqualibus, nimirum. RC ducto in, CD, _ M C ducro in C N, remanebie
BK duccum in CD aquale MC duccoin N P. Quod fuic demonstrandum.
PROPOSITIO LZXXV.
lem posiris demittatur ex C, linea C HT F parallela e xequalis axi AL.
Dico M C ducrum in E. HI aequari BC ducco in DF.
Demonstratio.
H ad CF, ACBC C AdDMC: SCd VE CFI ad C F, sIC C F ad CD, B Ex LOS.
hicur BC est ad MC, bECF ad C D: eAt aurem ve F C ad DC; AC C F( F doparabola
a F. D; quia HC, F. C, D C proporcionales sunc; Egitur De HH ad RD, SiCB C ad progressioni-
M C: etBOrCCtanS II C HF. Lquancur reclatipulis BC DB; icicur M C duccurbu.
in FTF aquacu DC aCtO in DF. Quod fuit deonstrandum.
PR O POSTF IOLZRXVI
Dico mashicudinem prouccam ex B MI ducco in L. C, X quarima-
IIdem potLS. le1
snirudiniosre ex BC dueto in DF.
Semonsorto.
5. calcoade
SLanum BC duccum in planum CF, aequale eA BMI ducro in CF _E M C,
L aucco in C F; sed M C duccum in C F. equacur B C d ducco in CD; igieux _ dICZ. hu
BC ductom C P. aGuare e DM ducco in CP, vna cum BC ducto in CD. 
Rurlum B C duecum in CF. Xequatur BC ducco in CD _ BC ducco in D Fi Cr-
ixicur communi BC, auclo in CD. remanebit BM ducrum in F. C aquale BC
ducco in DL. Quodtuis demonstrandum.
S0BML in C B cum B C in D, a CI CD C BC in DE; ablaco
1e es etrepe 3I LN
Aope u t e te e  te te e  e e e es s  e e t t  e e   e et t  t et u e 1e  e e et  te e  t  e e e be t e t e t 1