A Dogma of Metaphysical Realism

There is a dogma about metaphysical realism that is well nigh universal: "If one is a metaphysical realist about the external world, then one ought to be a semantic realist about external- world statements". I argue that this dogma should be rejected. It is possible for a metaphysical realist to be a "semantic dualist", holding that some middle- sized object statements receive a realist interpretation, but that most such statements require an antirealist interpretation. To show that a semantically dual language is at least possible, I describe a possible world whose inhabitants speak a version of English that is syntactically dual. Further I argue that English in the "actual world" is itself semantically dual