1. Semantic Closure, Descriptions and Non-Triviality

   • Graham Priest

   OriginalPaper Pages: 549 - 558

2. When Hyperpropositions Meet ...

   • André Fuhrmann

   OriginalPaper Pages: 559 - 574

3. A Propositional Dynamic Logic with Qualitative Probabilities

   • Dimitar P. Guelev

   OriginalPaper Pages: 575 - 604

4. Ray on Tarski on Logical Consequence

   • William H. Hanson

   OriginalPaper Pages: 605 - 616

5. Natural Numbers and Natural Cardinals as Abstract Objects: A Partial Reconstruction of Frege"s Grundgesetze in Object Theory

   • Edward N. Zalta

   OriginalPaper Pages: 617 - 658

6. Contents Volume 28 1999

   OriginalPaper Pages: 659 - 660

7. Author Index Volume 28 1999

   OriginalPaper Pages: 661 - 662