 Second, perhaps error theory could narrow the class of basic normative claims – the claims that it holds to be false. If a basic normative claim is a claim that ascribes a normative property to something, error theory should be careful as to which normative predicates ascribe bone fide normative properties. It could then deny that permissibility is a bona fide normative property: to claim that something is permissible is really to deny that it is morally wrong. (Walter Sinnott-Armstrong (2006: §3.1) has suggested a very similar move for moral error theorists.)