SEN, J.; CHAKRABORTY, M. K. Logic and Truth: Some Logics without Theorems. Studia Philosophica Estonica, [S. l.], p. 104–117, 2008. DOI: 10.12697/spe.2008.1.1.06. Disponível em: https://ojs.utlib.ee/index.php/spe/article/view/spe.2008.1.1.06. Acesso em: 29 mar. 2024.