Abstract

On the dominant interpretation of Being and Time, Heidegger’s investigation of being (Sein) is really an investigation of meaning (Sinn). On a competing interpretation, Being and Time is a work of realist metaphysics. I argue that existing interpretations of both types oversimply the relationship between phenomenology and metaphysics in Being and Time. I show how a Husserlian framework for mapping the relations between formal ontology, regional ontology, and phenomenology illuminates the structure and ambitions of Being and Time. What results is a version of the metaphysical realist reading that combines the virtues, while correcting the oversights, of existing accounts in both camps. On this reading, phenomenology for both Husserl and Heidegger aims to vindicate claims to a priori knowledge, including ontological knowledge, through a regional ontology of the subject that presupposes the categories of formal ontology.