1. Functions definable in Sugihara algebras and their fragments (I)

   • Marek Tokarz

   OriginalPaper Pages: 295 - 304

2. Representation and duality theory for diagonalizable algebras

   • Roberto Magari

   OriginalPaper Pages: 305 - 313

3. For everyn, then-freely generated algebra is not functionally free in the equational class of diagonalizable algebras

   • Franco Montagna

   OriginalPaper Pages: 315 - 319

4. On the equational class of diagonalizable algebras

   • Glaudio Bernardi

   OriginalPaper Pages: 321 - 331

5. An extension of S4 complete for the neighbourhood semantics but incomplete for the relational semantics

   • Martin Serastian Gerson

   OriginalPaper Pages: 333 - 342

6. Deontic logic without certain paradoxes

   • Leon Gumański

   OriginalPaper Pages: 343 - 365

7. Combinator operations

   • David Meredith

   OriginalPaper Pages: 367 - 385

8. Reviews

   • Wojciech P. Zielonka
   • Jerzy Kopania

   BookReview Pages: 387 - 399