loc math p.180 Procl...
http://lila-erc.eu/data/lexicalResources/NLW/id/attestation/26737 <http://www.w3.org/nl/lemon/frac#Attestation>
loc math p.180 Procl...
loc math p.180 Proclus igitur in comm. 23. primi Euclidis, sic ait: "... fit autem huiusmodi securalis figura, quae pelecoides vocatur duobus circulis per centra se mutuò secantibus".