ROBLES, G. A simple Henkin-style completeness proof for Gödel 3-valued logic G3. Logic and Logical Philosophy, [S. l.], v. 23, n. 4, p. 371–390, 2014. DOI: 10.12775/LLP.2014.001. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2014.001. Acesso em: 16 aug. 2024.