Abstract

Moore’s sympathies are anti‐realist. As an example of an antirealist account of truth, he gives what he calls “the Wittgensteinian View” of truth for mathematical discourse. In attempting to show how to “sidestep certainly apparently decisive objections” to the Wittgensteinian View, Moore acquiesces in the charge that it makes the consistency of a mathematical theory a matter of stipulation: we adopt a rule “that guarantees the consistency of Peano Arithmetic.” Moore’s main concern is the defensibility of anti‐realist view of philosophical discourse. In “Williamson’s Philosophy of Philosophy”, Paul Horwich defends the idea that the proper business of philosophy is clarification rather than systematic theory‐building. In political philosophy, it would be hard to mount a credible defense of some system of government without considering what effects it causally explains. In terms of Diego Marconi’s clear version of Wittgenstein’s account, it is straightforward to explain why it is no longer a live option for so many philosophers.