INDRZEJCZAK, A. Simple cut elimination proof for hybrid logic. Logic and Logical Philosophy, [S. l.], v. 25, n. 2, p. 129–141, 2016. DOI: 10.12775/LLP.2016.004. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2016.004. Acesso em: 28 mar. 2024.