# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/1047377675:0046
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# Title: [Geometriae Pars Universalis, Inserviens Quantitatum Curvarum transmutationi & mensurae] Geometriæ Pars Vniversalis, Inserviens Quantitatum Curvarum transmutationi & mensuræ (shelfmark Ms IV, 377a)
# Folio 30, page id 1047377675:0046
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1047377675&page=46
# Source image: https://digitale-sammlungen.gwlb.de/content/1047377675/jpgs/default/00000046.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 12 lines, status machine
# Lines: 12 recognised, mean confidence 0.93
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
# Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text.
# Wording rule: say "the machine reads it as …", never "Leibniz wrote".
# After the first blank line: the recognised lines in reading order, one per line.

Appello quoque puncta B. F, vel D, I, rel F, K, Sibimuruo
relacira.
punctum Ci appello cenerum involutionis.
Angulum HIC X voco angulum involurionis.
Appello rectam AF evolurae hgura axem, icem quamlI.
Dec C. D illi perpendicularem axi ordinacim applicaram.
P ROP. 12. 2 H E O R R M A.
IE rectangulum AF CB, quod inrolurum efficiae le sFO-
rem circuli BF. C, icem rectangulum ADFIB, quod in
volurum effciat sectorem BCII. dico angulum involurionis
B Hmaiorem esse ansulo inrolurionis E. B Cr. est enim uE
BC