This volume brings together original contributions in algebraic logic, semantics, and a broad range of topics in non-classical logics. It offers a pluralistic perspective on contemporary logical research, encompassing developments in modal and higher-order frameworks, as well as paraconsistent, intuitionistic, and multivalued logics. The contributions place particular emphasis on semantic methods and algebraic structures, while also engaging with proof-theoretical and model-theoretical approaches, including a variety of consequence relations. Covering topics such as novel semantic frameworks, algebraic characterizations, and formal systems, the volume reflects the diversity and ongoing development of research in non-classical logics.
By gathering both established and emerging scholars, it provides a snapshot of current work at the intersection of algebra, semantics, and logical theory, and will be of interest to researchers and advanced students seeking a deeper understanding of contemporary developments across a wide spectrum of logical systems and methodologies.

Walter Carnielli is a renowned logician and mathematician known for his contributions to non-classical logics, probability and philosophy of science. He has published extensively, advancing the understanding and application of logical reasoning systems. Carnielli has actively promoted logic education, and his work has had a significant international impact, making him a highly respected figure in the field.

Abilio Rodrigues is a distinguished logician and philosopher known for his contributions in logic, philosophy of language, and epistemology. With extensive publications and innovative research, he has made a lasting impact in the field. Holding degrees from prestigious institutions, his work continues to shape contemporary scholarship in logic and philosophy.