FENSTAD, J. E. On the Consistency of the Axiom of Comprehension in the Lukasiewicz Infinite Valued Logic. MATHEMATICA SCANDINAVICA, [S. l.], v. 14, p. 65–74, 1964. DOI: 10.7146/math.scand.a-10706. Disponível em: https://www.mscand.dk/article/view/10706. Acesso em: 3 may. 2024.