Proceedings of the 19th International Workshop on Logical and Semantic Frameworks, with Applications

This volume contains the post-proceedings of the 19th LSFA, which was held in Goi\^ania, the capital of Goi\'as state in Brazil, from September 18 to September 20, 2024. Logical and semantic frameworks are formal languages used to represent logics, languages and systems. These frameworks provide foundations for the formal specification of systems and programming languages, supporting tool development and reasoning. The aim of this series is bringing together theoreticians and practitioners to promote new techniques and results, from the theoretical side, and feedback on the implementation and use of such techniques and results, from the practical side. LSFA includes areas such as proof and type theory, equational deduction and rewriting systems, automated reasoning and concurrency theory.