ROBLES, Gemma. Extensions of the basic constructive logic for weak consistency BKc1 defined with a falsity constant. Logic and Logical Philosophy, [S. l.], v. 16, n. 4, p. 311–322, 2008. DOI: 10.12775/LLP.2007.010. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2007.010. Acesso em: 26 jan. 2026.