JANIKOWSKI, W. How ‘Ought’ Can Be Inferred From ‘Is’? John r. Searle’s Thesis Revisited. Roczniki Filozoficzne, [S. l.], v. 71, n. 3, p. 133–154, 2023. DOI: 10.18290/rf23713.7. Disponível em: https://czasopisma.tnkul.pl/index.php/rf/article/view/313. Acesso em: 7 nov. 2025.