 By contrast, according to supra-individualists (Gilbert 1989), when a plurality of individual agents perform a joint action, then the agents have the relevant propositional attitudes (beliefs, intentions etc.) in an irreducible ‘we-form’, which is sui generis (Searle 1990) and as such not analysable in terms of individual or I-attitudes Tuomela 2013). Moreover, the individual agents constitute a new entity, a supra-individual entity not reducible to the individual agents and the relations among them (Epstein 2015).