DescriptionI explore various claims about the nature of phenomenal concepts and isolate two recurring intuitions. The first involves the epistemological role of phenomenal concepts: a phenomenal concept is supposed to be a concept of a type of experience that must be possessed by a subject who knows what it is like to have an experience of the type in question. The second involves the importance of experience: a phenomenal concept is supposed to be a concept of a type of experience that can be possessed only by a subject who has had an experience of the type in question. Most accounts of phenomenal concepts have stipulations designed to satisfy both these conditions. I argue, however, that they cannot jointly be satisfied.
We thus face a choice: either we can possess phenomenal concepts of types of experiences we haven't had, or a phenomenal concept is not required for phenomenal knowledge. I argue that the latter is unacceptable, as the idea of a phenomenal concept is inextricably tied to issues involving the relationship between phenomenal knowledge and non-phenomenal knowledge.
I defend a recognitional account of phenomenal concepts, whereby a subject possesses a phenomenal concept partly in virtue of being able to recognize an experience as being of a certain type and which does not require having had an experience of the type in question. I consider and reject the rival "quotational" account, which holds that a phenomenal concept actually contains its referent as a proper part.
The latter part of my dissertation is an analysis of some prominent antiphysicalist arguments through the lens of phenomenal concepts. I consider, especially, a theme that runs through them, which is what Brian Loar calls 'the semantic premise', and which Stephen White has recently argued for: the claim that any true identity statement that involves noncontingent modes of presentation on both sides of the identity must be a priori.