Abstract: Stephen Yablo, rejecting meaning-based approaches to apriority explanation, explores the suggestion that the apriority of existence claims within the abstract sciences might be attributable to their metaphorical nature. To this end, Yablo argues that the abstract sciences show that the theory of understanding is not the only epistemological resource open to defenders of the a priori.

Keywords: abstract sciences, apriority, explanation, metaphor, understanding, Stephen Yablo,