%0 Journal Article %A Aranda Utrero, Víctor %T A completeness theorem for a functionally complete Łukasiewicz logic %D 2025 %@ 1425-3305 %U https://hdl.handle.net/20.500.14352/123833 %X Radzki has recently claimed the incompleteness of the axioms given by Słupecki for the functionally complete Ł3: some of its tautologies are not provable. In this paper, we provide a new axiom system for this logic (choosing a variant with two propositional constants and the Łukasiewicz implication as primitive symbols) and prove a Completeness Theorem. %~