in sphaer fol.10r Ve...
http://lila-erc.eu/data/lexicalResources/NLW/id/attestation/14954 <http://www.w3.org/nl/lemon/frac#Attestation>
in sphaer fol.10r Ve...
in sphaer fol.10r Verum Ptolemaeus et omnes commmuniter astronomi ascensionem signi vel arcus rectam vocant quae fit in sphaera recta. Obliquam vero, quae in obliqua. Et idem de descensione dicendum. Differentia vero rectae et obliquae ascensionis dicitur differentia ascensionalis.