CARNEIRO, Mario M. Conversion of HOL Light proofs into Metamath. Journal of Formalized Reasoning, [S. l.], v. 9, n. 1, p. 187–200, 2016. DOI: 10.6092/issn.1972-5787/4596. Disponível em: https://jfr.unibo.it/article/view/4596. Acesso em: 21 nov. 2024.