FRANKOWSKI, S. Syntactic properties of p-consequence. Logic and Logical Philosophy, [S. l.], v. 20, n. 4, p. 285–295, 2011. DOI: 10.12775/LLP.2011.018. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2011.018. Acesso em: 24 apr. 2024.