RT Article T1 A Sellarsian Transcendental Argument against External World Skepticism JF International journal for the study of skepticism VO 11 IS 3 SP 193 OP 223 A1 Geier, Marin LA English YR 2021 UL https://ixtheo.de/Record/1767697376 AB Abstract This paper investigates the relation between what James Conant has called Kantian and Cartesian varieties of skepticism. It is argued that a solution to the most prominent example of a Kantian variety of skepticism, i.e. Kripkensteinian skepticism about rule-following and meaning, can be found in the works of Wilfrid Sellars. It is then argued that, on the basis of that very same solution to the Kantian problematic of rule-following and meaning, a novel argument against external world skepticism can be formulated. This argument takes the shape of a transcendental argument, which is reminiscent of Hilary Putnam’s infamous argument against the brain-in-a-vat hypothesis, but is, as is argued, superior to it in certain respects. K1 Wilfrid Sellars K1 transcendental arguments K1 Cartesian skepticism K1 Kantian skepticism K1 meaning skepticism K1 Rule-following DO 10.1163/22105700-20201365