This volume collects selected papers presented at the Second Chinese Conference on Logic and Argumentation in 2018 held in Hangzhou, China. The papers presented reflect recent advances in logic and argumentation, as well as the connections between the two, and also include invited papers contributed by leading experts in these fields. The book covers a wide variety of topics related to dynamics, uncertainty and reasoning. It continues discussions on the interplay between logic and argumentation which has a long history from Aristotles ancient logic to very recent formal argumentation in AI.

Beishui Liao, Professor of the Department of Philosophy, Zhejiang University, China. He is an international expert in the field of formal argumentation and their application in multi-agent systems and AI ethics. He has published 3 monographs, and a number of papers in some leading journals such as AIJ, JLC, AMAI, etc., and top conferences such as IJCAI, KR and COMMA, etc. Thomas Ågotnes, Professor of the Department of Information Science and Media Studies, University of Bergen, Norway. He is famous for his researches in Logic and Multi-agent Systems, with numerous high quality publications in these areas. A main focus is logic-based knowledge representation and reasoning, in particular formalizing different forms of interaction.Yi N. Wang, Associate Professor of the Department of Philosophy, Zhejiang University, China. He is one of the most active young logicians in China. Most of his work is related to modal logic, logicsfor agents and multi-agent systems, as well as logic and social networks. His papers have been published in some top journals/conferences such as AIJ, IJCAI, TARK, etc.

On Structural Analysis of Extension-Based Argumentation Semantics.- Updating argumentation frameworks for enforcing extensions.- A Dynamic Approach for Combining Abstract Argumentation Semantics.- A Dynamic Logic Framework for Abstract Argumentation.- Fuzzy argumentation frameworks with comparing acceptability.- Soft Presuppositions as Scalar Implicatures in Signaling Games.- Towards a Logic of Value and Disagreement via Imprecise Measures.- A Modal Logic with Five Linguistic Truth Values.- A road to ultrafilter extensions.- Free Choice Permission: Perspectives from Substructural Logic.