Abstract
Works of fiction are alleged to differ from works of nonfiction in instructing their audience to imagine their content. Indeed, works of fiction have been defined in terms of this feature: they are works that mandate us to imagine their content. This paper examines this definition of works of fiction, focusing on the nature of the activity that ensues in response to reading or watching fiction. Investigating how imaginings function in other contexts, I show, first, that they presuppose a cognitive infrastructure encompassing at least one additional kind of mental state, whose role is to determine, to some degree, truth in an imaginary world. I then discuss the implications for the definition of fiction, showing that the definition should be refined to accommodate the structure that imagining presupposes: a work counts as fiction just in case it mandates us, not only to imagine, but to engage in a more complex mental activity, an activity that in addition to imagining, involves positing a backdrop for our imaginings.