Book review of 'Explanation in ethics and mathematics: debunking and dispensability' by Uri D. Leibowitz and Neil Sinclair, Oxford : Oxford University Press, 2016.

This volume covers two related debates in both meta-ethics and the philosophy of mathematics, with brief forays into the philosophies of logic and religion and the history of ethics. The first debate is about ‘evolutionary debunking arguments’ (EDAs) – roughly, arguments that because evolutionary pressures do not track realistically construed ethical and mathematical (EM) truths, the evolutionary origins of our EM-beliefs suggest that they do not track such truths. The second debate is about ‘indispensability arguments’ (IAs) – roughly, arguments that we are justified in including realistically construed EM-entities in our ontology because they are indispensable for some important project