 However, the Katzian trichotomy is no longer a useful characterisation of the state-of-the-art in linguistic ontology. For one thing, Katzian-style linguistic Platonism has very few if any extant adherents. One reason for this situation is that linguistic platonists attempt to restage the debate on the foundations and metaphysics of natural language within the philosophy of mathematics (see Katz 1996). But even if this move was legitimate, it would only have opened up a range of possibilities including nominalism (Field 1980; Azzouni 2004), structuralism (Hellman 1989; Shapiro 2007; Nefdt 2016), and forms of mentalism in the guise of intuitionism. For instance, while Richard Montague is often attributed with the view that linguistics can be viewed as a branch of mathematics, it is unclear whether or not he endorsed a platonistic ontology. Devitt (2006: 26) describes the possibility of a ‘methodological platonism’ in the following manner: