KLONOWSKI, M. A Post-style proof of completeness theorem for symmetric relatedness Logic S. Bulletin of the Section of Logic, [S. l.], v. 47, n. 3, p. 201–214, 2018. DOI: 10.18778/0138-0680.47.3.05. Disponível em: https://czasopisma.uni.lodz.pl/bulletin/article/view/4716. Acesso em: 26 apr. 2024.