(=> (Dyad-Of-Dimensions ?Physim ?Spatdim ?Class) (And (Physical-Dimension ?Physim) (Positive-Integer ?Spatdim) (= ?Class (Kappa (?Vq) (And (Dyad ?Vq) (= (Spatial.Dimension ?Vq) ?Spatdim) (= (Quantity.Dimension ?Vq) ?Physim))))))