WARD, Andrew. The Varieties of extensionalism. auslegung: a journal of philosophy, [S. l.], v. 9, n. 3, p. 262–282, 1982. DOI: 10.17161/AJP.1808.9043. Disponível em: https://journals.ku.edu/auslegung/article/view/12872.. Acesso em: 22 jul. 2024.