1. Superstationary and ineffable ⁿ cardinals

   • Christopher C. Leary

   OriginalPaper Pages: 137 - 148

2. S ₃ ⁱ andV ₂ ⁱ (BD)

   • Gaisi Takeuti

   OriginalPaper Pages: 149 - 169

3. Some observations on intuitionistically elementary properties of linear orderings

   • Wim Veldman
   • Michaël Janssen

   OriginalPaper Pages: 171 - 185

4. Computability by means of effectively definable schemes and definability via enumerations

   • Ivan N. Soskov

   OriginalPaper Pages: 187 - 200

5. Working below a low₂ recursively enumerably degree

   • Richard A. Shore
   • Theodore A. Slaman

   OriginalPaper Pages: 201 - 211