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# Title: [Gulielmi Gosselini Cadomensis Bellocassii De Arte magna, seu de occulta parte numerorum, quae & Algebra, & Almucabala vulgo dicitur, Libri Quatuor. In quibus explicantur aequationes Diophanti, Regulae Quantitatis simplicis, [et] Quantitatis surdae] Gvlielmi|| Gosselini Cadomen-||sis Bellocassii De Arte|| magna, seu de occulta parte nume-||rorum, quæ & Algebra, & Almuca-||bala vulgo dicitur,|| Libri Qvatvor.|| In quibus explicantur æquationes Diophanti, Regu-||læ Quantitatis simplicis, [et] Quantitatis surdæ.|| (shelfmark Nm-A 317)
# Folio 39, page id 1045080551:0097
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# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 23 lines, status machine
# Lines: 23 recognised, mean confidence 0.92
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M AGN A L IBER 1.
B C duas medias continue proportio
nales inuenimus CNecL A quodte-
CiAC OPOFTUIE.
Problema TI.
Daro cuicunque Cubo Cubum ci
duplum, criplum, quadruplum e lic
in intinitum conscituere.
Sic Cubus cujus latus AB, cuiqui-
dem Cubum duplum delcribere opus
lIE, ac fingamus quidem aram Apolli-
nishabuisse latus Cubicum aequale li-
nexe AB, Ouaritur re cam duplice
mus, describemus parallelooramum
ex linca AB e lui duplo, quod sixli-
nea BC, tuinter B C ex A B, duas inteF
medias proportionales restisabimus
quae crunt ex problemate luperiorL
BO _OP, AIO Cubum BG dupli
eAc Cubi lince datxe AB, quod (iC de-
monstro, cum enim sint linea qua
cuor proportionales AB, BO, OP, e
BC, ratio BC 2d AB dicirur eripl2