Feitosa, Hércules Araújo. “Translating Lukasiewicz’s Logics into Classical Logic: A Grade of Difficulty”. Princípios: Revista de Filosofia (UFRN) 8, no. 10 (October 2, 2010): 109–120. Accessed January 8, 2026. https://www.periodicos.ufrn.br/principios/article/view/631.