Abstract: The question “what is art?” is often said to be venerable and vexing. In fact, the following answer to the question should be obvious: (R) item x is a work of art if and only if x is a work in practice P and P is one of the arts. Yet (R) has appeared so far from obvious that nobody has given it a moment’s thought. The trouble is not that anyone might seriously deny the truth of (R), but rather that they will find it uninformative. After all, the vexing question is pressed upon us by radical changes in art of the avant-garde, and (R) offers no resources to address these changes. With that in mind, here is the case for (R). The challenges posed by the avant-garde are real enough and they need to be addressed, but the vexing question is the wrong question to ask to address them. It does not follow that the question has no good answer. On the contrary, (R) is all the answer we need, if we do not need an answer that addresses the challenges posed by the avant-garde. Moreover, (R) points to a question that we do need answered. So, not only is it true but, in addition, (R) is as informative as we need.
Comment: This text offers a good introduction to contemporary sceptical attitudes towards the classificatory project. The current debate is presented as likely unresolvable and the choice of a theory as largely a matter of opinion. Lopes makes a good case for his title: why should we care about a defining art? The text is full of controversial points and hooks for class discussion.