Volume 31, Issue 1, Winter 2001
Lawrence Pasternack
Pages 73-80
Internal Realism and Twin Earth
This paper is structured as follows. First, it offers a brief presentation of the Twin Earth thought experiment. Second, it offers an interpretation of Putnam's
anti-realism. Third, it argues for the incompatibility of anti-realism and the semantic role of extension that Twin Earth is supposed to establish.