This paper challenges a widespread reading of Aristotle’s use of dialectic in the treatment of aporiai. According to this reading, the search for a resolution of an aporia is supposed to proceed by arguing against conflicting theses to refute one of them. I argue that this reading is not satisfactory and propose an alternative, based on an often overlooked distinction between two dialectical procedures, the refutation (elenchos) of a thesis and the resolution (lysis) of an argument. These two terms are (...) employed fairly consistently by Aristotle in the treatises as well. Since an aporia requires not merely conflicting theses, but conflicting arguments for those theses, I contend that the ideal way out of aporiai involves a critical analysis of those arguments, akin to that involved in the dialectical resolution. A relevant implication of this reading is that it expands the critical use of dialectic for philosophy, and points to the specific philosophical utility of the Sophistical Refutations. (shrink)