 Second, philosophers unafraid of the ‘synthetic a priori’ can reject the inference from conceivability reasoning to conceptual status. It is notable here that a great deal of work in contemporary metaphysics appeals to something like conceivability reasoning to argue directly for claims about the nature of reality. Third, the very notion of conceptual truth is hotly contested: many philosophers have become convinced that there is no notion of conceptual truth that is both coherent and philosophically interesting (for discussion, see the entry on the  analytic-synthetic distinction).