 as you see Porphyry teach, the place for dealing with these should be sought elsewhere, namely metaphysics. (Et he questiones de generibus et speciebus platonicis, que ad materiam idearum pertinent …. Sed discutiendi locus (ut scite Porphyrius ammonet) alio ex loco metaphysica scilicet est expectandus, 1503a: 2r)