SMITH, N. J. A Theory of Propositions. Logic and Logical Philosophy, [S. l.], v. 25, n. 1, p. 83–125, 2015. DOI: 10.12775/LLP.2015.021. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2015.021. Acesso em: 25 jul. 2024.