Characterizations of Negative Definability in Modal Logic Marco Hollenberg OriginalPaper Pages: 357 - 386
Modal Deduction in Second-Order Logic and Set Theory - II Johan van BenthemGiovanna D'AgostinoAlberto Policriti OriginalPaper Pages: 387 - 420
Connections Between BCK-algebras and Difference Posetse Anatolij DvurečenskijHee Sik Kim OriginalPaper Pages: 421 - 439
Books Received: Jürgen Mittelstrass, Enzyklopädie Philosophie und Wissenschaftstheorie Max Urchs BookReview Pages: 441 - 448