Nietzsche is infamous for denouncing logic, but despite the importance of logic in contemporary philosophy, there has been very little scholarly attention paid to his criticisms. This paper argues that Nietzsche's antilogic polemics are directed against semantics, which he regards as being committed to a realist metaphysics. It is this metaphysical realism that Nietzsche abhors, not logical syntax or proof theory. Nietzsche is also at pains to critique logicians who naively accept realist semantics. Other interpreters who cast Nietzsche as a (...) logical nihilist are criticized as unjustly neglecting key prologic texts. (shrink)