See Jordanus #10264. The Boethius text is siglum "Va" in Minio-Paluello's Aristoteles Latinus edition.
Early copy of Boethius's logical works (siglum "Va" in Minio-Paluello's Aristoteles Latinus edition). Here end of the (incomplete) Isagoge by Porphyry and the beginning of the Categories.
— Pieter Beullens (@PieterBeullens) February 7, 2021
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