DUŽÍ, M.; MATERNA, P. Can concepts be defined in terms of sets?. Logic and Logical Philosophy, [S. l.], v. 19, n. 3, p. 195–242, 2010. DOI: 10.12775/LLP.2010.008. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2010.008. Acesso em: 4 jul. 2024.