CHANG, C. C. The Axiom of Comprehension in Infinite Valued Logic. Mathematica Scandinavica, Berkeley, CA, United States, v. 13, p. 9–30, 1963. DOI: 10.7146/math.scand.a-10685. Disponível em: https://journals.msp.org/mscand/article/view/2637. Acesso em: 25 jul. 2026.