 While the theories PFO and PFO+ represent what is today the most traditional form of plural logic, there are divergent views that restrict the plural comprehension schema. Even if a plurality is nothing over and above the objects it comprises, these objects do need to be circumscribed. And on certain metaphysical views, reality as a whole resists proper circumscription (Spencer 2012; Florio and Linnebo 2020 and 2021, ch. 12; see also Hossack 2014). Based on considerations of this sort, Florio and Linnebo (op. cit.) develop an alternative critical plural logic. 