Primary Sources (Fontes Principais)

• Carrier, R. (2025). Objective Moral Facts Exist in All Possible Universes. Published in Religions, 16(1061).
• Curry, O. S., Mullins, D. A., & Whitehouse, H. (2019). Is It Good to Cooperate? Testing the Theory of Morality-as-Cooperation in 60 Societies. Published in Current Anthropology, 60(1), 47–69.
• Pires, J. G. (2026). First Principles, Deduction, and Empirical Convergence: Can we find first principles for morality? Published in Medium / Scientists Free From Religion.
• Pires, J. G. (2026). Morality as Cooperation (MAC): What Did Oliver Scott Curry Actually Discover? Published in Medium / Scientists Free From Religion.
• Pires, J. G. (2026). When Deduction Meets Observation: An Unexpected Convergence in Moral Philosophy. Published in Medium / Scientists Free From Religion.

Key References Cited within the Sources (Referências Citadas)

• Axelrod, R. (1984). The Evolution of Cooperation. New York: Basic Books.
• Dawkins, R. (2006). The Selfish Gene. 3rd ed. Oxford University Press.
• Gintis, H. (2007). The Evolution of Private Property. Journal of Economic Behavior and Organization, 64(1), 1–16.
• Hamilton, W. D. (1964). The Genetical Evolution of Social Behaviour. Journal of Theoretical Biology, 7, 1–52.
• Hume, D. (1751). An Enquiry Concerning the Principles of Morals. London: A. Millar.
• Kant, I. (1964). Groundwork of the Metaphysic of Morals. Translated by H. J. Paton. New York: Harper Torch Books.
• Maynard Smith, J. (1982). Evolution and the Theory of Games. Cambridge University Press.
• Nash, J. (1950). The Bargaining Problem. Econometrica, 18(2), 155–162.
• Skyrms, B. (1996). Evolution of the Social Contract. Cambridge University Press.
• Smith, M. (1994). The Moral Problem. Hoboken: Wiley-Blackwell.
• Trivers, R. L. (1971). The Evolution of Reciprocal Altruism. Quarterly Review of Biology, 46(1), 35–57.