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# Title: [Problema Austriacum Plus Ultra Quadratura Circuli] Problema Avstriacvm Plvs Vltra Qvadratvra Circvli (shelfmark Leibn. Marg. 230, Stück 1)
# Folio 879, page id 1815201908:0936
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# Lines: 47 recognised, mean confidence 0.83
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_LOMETRIC A
DEr praecedeMem raciO
B
ad CB, candem proPOr
cionem habec, quam A ad C
Demonstratio.
CB. Duodtur demonttrandum.
ancecedens ad ancccedens.
insuperper eandem propoli-
cionemracio AD, ad C D racionem, eadem est cum ractone H de C. sH 1-
eio, adrationem C D, eandem continec provorcionem, quam rario L adracionem
eROEOSITIO IV.
Icracio AB ad lacionem CB, ve rario DB ad rationem LB.
Dico quancicates A, C, ecD, P. proportionales elle.
Demonstarto.
Premacmonum est rario
ratio DB, ad L Bracionem:
ergove Aad C, ica est D ad F. Quate  o
montTaTC OPOTEUIE.
AB ad C B cacionem
ita est per sccundam huius.
A ad C: Similiter ve racio
DB ad F B rationem, ic2
eAt D ad B: Sed veracio AB
ad C Brationem, ica ponicur
R OLOSIT1O
tatio AB aa LaIOHCMI C B, verario D F adrationem F. F.
31.
DDicoirerum A, C ex B,  proporcionales CC.a
1.31. l.11 tatii a
demonstratio.
eliul
Acio AB ad C B, cadem
raciono. A dd.
C. ancecedentis ad anrCC 1 IF D), 11,9I  s. et R nisois
dens. Similiter FacIO LL ac
F F, eadem elt cum bratIONC
D adF: Sed veratio A B dit
CB, ita ponitur ratio D F
2d F F. ergo A est ad C, ve
D ad F. Ouod crac demo
Aranduin.
1t .s ((23 D BE C Et A 017∞2 31
_I BL. C E vi3u. 2e11B3C
a2. hrime
R
1 . re  t. Bp2e A D fdi L . D B. C. L.  25 13 ACIBA, odini d