1. Subgroups of Baumslag–Solitar groups

   • F. A. Dudkin

   OriginalPaper 25 March 2009 Pages: 1 - 19

2. Reducibility on families

   • I. Sh. Kalimullin∗
   • V. G. Puzarenko∗∗

   OriginalPaper 26 March 2009 Pages: 20 - 32

3. Restricted interpolation property in superintuitionistic logics

   • L. L. Maksimova

   OriginalPaper 25 March 2009 Pages: 33 - 53

4. Axiomatizability and completeness of some classes of partially ordered polygons

   • M. A. Pervukhin
   • A. A. Stepanova

   OriginalPaper 25 March 2009 Pages: 54 - 71

5. An explicit basis for admissible inference rules in table modal logics of width 2

   • V. V. Rimatskii

   OriginalPaper 25 March 2009 Pages: 72 - 86

6. Sessions of the seminar “Algebra i Logika”

   Events 25 March 2009 Pages: 87 - 87