Unfamiliarity in Logic? How to Unravel McSweeney’s Dilemma for Logical Realism

Logical realism is the metaphysical view asserting that the facts of logic exist and are mind-and-language independent. McSweeney argues that if logical realism is true, we encounter a dilemma. Either we cannot determine which of the two logically equivalent theories holds a fundamental status, or neither theory can be considered fundamental. These two conclusions together constitute what is known as the Unfamiliarity Dilemma, which poses significant challenges to our understanding of the epistemological and metaphysical features of logic. In this article, I present two strategies to address McSweeney’s dilemma. If these arguments prove effective, they would demonstrate that our knowledge of logic is not susceptible to the skeptical concerns raised by McSweeney’s hypothesis.