Berker, Selim. 2014. “Does Evolutionary Psychology Show that Normativity is Mind-Dependent?” In Moral Psychology and Human Agency, edited by D’Arms, Justin and Jacobson, Daniel, 215–252. Oxford: Oxford University Press. 10.1093/acprof:oso/9780198717812.001.0001
Carnap, Rudolph. 1956. “Empiricism, Semantics, and Ontology.” In Meaning and Necessity: A Study in Semantics and Modal Logic, 205–221. Chicago, IL: University of Chicago Press.
Clarke-Doane, Justin. 2017. “Objectivity and Reliability.”
Enoch, David, and McPherson, Tristram. 2017. “What do you mean.”
Koellner, Peter. 2009. “Truth in Mathematics: The Question of Pluralism.” In New Waves in Philosophy of Mathematics, edited by Bueno, Otávio and Linnebo, Øystein, 80–116. New York: Palgrave Macmillan.
Mackie, John. 1977. Ethics: Inventing Right and Wrong. Harmondsworth: Penguin Books.
Parfit, Derek. 2011. Vol. 2 of On What Matters. Oxford: Oxford University Press.
Quine, W. V., and Goodman, Nelson. 1947. “Steps Toward a Constructive Nominalism.” Journal of Symbolic Logic 12: 105–122.
Rosen, Gideon. 2017. “Scanlon’s Modal Metaphysics.”
Scanlon, T. M. 2014. Being Realistic about Reasons. Oxford: Oxford University Press. 10.1093/acprof:oso/9780199678488.001.0001
Street, Sharon. 2006. “A Darwinian Dilemma for Realist Theories of Value.” Philosophical Studies 127: 109–166. 10.1007/s11098-005-1726-6
Tait, W. W. 2005. The Provenance of Pure Reason: Essays in the Philosophy of Mathematics and Its History. Oxford: Oxford University Press.