1. The Adaptive Logic of Compatibility

   • Diderik Batens
   • Joke Meheus

   OriginalPaper Pages: 327 - 348

2. On Modal Logics Characterized by Models with Relative Accessibility Relations: Part II

   • Stéphane Demri
   • Dov Gabbay

   OriginalPaper Pages: 349 - 384

3. An O(n log n)-Space Decision Procedure for the Relevance Logic B+

   • Luca Viganò

   OriginalPaper Pages: 385 - 407

4. Intuitionistic Propositional Logic without 'Contraction' but with 'Reductio'

   • J. M. Méndez
   • F. Salto

   OriginalPaper Pages: 409 - 418

5. Book Reviews

   BookReview Pages: 419 - 446

6. Contents of Volume 66

   Volume Contents Pages: 447 - 448