Proceedings of Logico-Philosophical Flemish-Polish Workshops II - IV: Diderik Batens: Criteria Causing Inconsistencies. General Gluts as Opposed to Negation Gluts; Diderik Batens, Joke Meheus, Dagmar Provijn, and Liza Verhoeven: Some Adaptive Logics for Diagnosis; Wim Christiaens: A Note Concerning the Place of Contradictions in the Ontologies of Constitution; Roland Hinnion: About the Coexistence of "Classical Sets" with "Non-classical" Ones: A Survey; Thierry Libert: ZF and the Axiom of Choice in Some Paraconsistent Set Theories; Jacek Malinowski: The Pragmatic Interpretation of Utterances; Joke Meheus: Inconsistencies and the Dynamics of Science; S. P. Odintsov: "Reductio ad absurdum" and Łukasiewicz's Modalities; Jerzy Perzanowski: A Profile Of Masonic Synthesis; Sonja Smets: In Defense of Operational Quantum Logic; Guido Vanackere: Change in individuals without a name. Contextual indicators & the free change-adaptive logic; Jean Paul Van Bendegem: Classical Arithmetic is Quite Unnatural; Bart Van Kerkhove: Vagueness Unlimited: In Defence of a Pragmatical Approach to Sorites Paradoxes; Liza Verhoeven: Changing one's position in a discussion - Some adaptive approaches. Varia: Dale Jacquette: Conditional Intent in the Strange Case of Murder by Logic; Joanna Odrowąż-Sypniewska: Gareth Evans's Argument Against Vague Identity; Stefano Predelli: Unbound Riches: Comparative Adjectives and the Argument from Binding