1. Quantifier elimination for Stone algebras

   • Switgard Feuerstein

   OriginalPaper Pages: 75 - 89

2. On the structure of initial segments of models of arithmetic

   • Jan Krajíček
   • Pavel Pudlák

   OriginalPaper Pages: 91 - 98

3. Π ₂ ¹ -Logic and uniformization in the analytical hierarchy

   • J. P. Ressayre

   OriginalPaper Pages: 99 - 117

4. Ptykes in GödelsT und Definierbarkeit von Ordinalzahlen

   • Peter Päppinghaus

   OriginalPaper Pages: 119 - 141

5. Homogeneity of infinite permutation groups

   • Saharon Shelah
   • Simon Thomas

   OriginalPaper Pages: 143 - 147