WOLEŃSKI, Jan. An abstract approach to bivalence. Logic and Logical Philosophy, [S. l.], v. 23, n. 1, p. 3–14, 2013. DOI: 10.12775/LLP.2013.028. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2013.028. Acesso em: 8 jul. 2025.