KOZHEMIACHENKO, D. A Simulation of Natural Deduction and Gentzen Sequent Calculus. Logic and Logical Philosophy, [S. l.], v. 27, n. 1, p. 67–84, 2017. DOI: 10.12775/LLP.2017.009. Disponível em: https://apcz.umk.pl/LLP/article/view/LLP.2017.009. Acesso em: 25 jun. 2024.