Erotetic Knowledge and Deal-Breaker Propositions

Abstract This paper critically engages with André Abath’s Knowing What Things Are: An Inquiry-Based Approach (2022), which develops an erotetic account of knowledge about what things are. According to Abath, to know what X is, one must know propositions that serve as appropriate answers to the question “What is X?” within a given inquiry context. While this view successfully accommodates variations in epistemic demands across contexts, I argue that it overlooks the role of deal-breaker propositions - false claims that fundamentally undermine knowledge ascription, even when surrounded by otherwise accurate information. By introducing the notion of relative essences, I propose an amendment to Abath’s account that accounts for the epistemic weight of these propositions. This refinement strengthens the erotetic view by addressing cases where misleading assertions obstruct knowledge transmission.