1. 1-based theories — the main gap fora-models

   • B. Hart
   • A. Pillay
   • S. Starchenko

   OriginalPaper Pages: 285 - 300

2. On the structure of Δ ₁ ⁴ -sets of reals

   • Haim Judah
   • Otmar Spinas

   OriginalPaper Pages: 301 - 312

3. Investigations on slow versus fast growing: How to majorize slow growing functions nontrivially by fast growing ones

   • Andreas Weiermann

   OriginalPaper Pages: 313 - 330

4. On countable homogeneous 3-hypergraphs

   • Reza Akhtar
   • Alistair H. Lachlan

   OriginalPaper Pages: 331 - 344