1. Varieties of idempotent semigroups

   • A. P. Biryukov

   OriginalPaper Pages: 153 - 164

2. Some theorems on abstract logics

   • S. L. Bloom
   • D. J. Brown
   • R. Suszko

   OriginalPaper Pages: 165 - 168

3. Elementary properties of semigroups of transformations of ordered sets

   • Yu. M. Vazhenin

   OriginalPaper Pages: 169 - 179

4. Nilpotency of right alternating rings

   • G. V. Dorofeev

   OriginalPaper Pages: 180 - 182

5. Inclusion problem for a certain class of groups

   • V. P. Klassen

   OriginalPaper Pages: 183 - 186

6. Finite groups whose solvable subgroups are 2-closed or 2′-closed

   • V. D. Mazurov
   • V. M. Sitnikov
   • S. A. Syskin

   OriginalPaper Pages: 187 - 204

7. Equivalency of certain nilpotencies in right alternating rings

   • A. M. Slin'ko

   OriginalPaper Pages: 205 - 209

8. Latticed isomorphisms of solvable groups

   • B. V. Yakovlev

   OriginalPaper Pages: 210 - 222

9. Meetings of the seminar “Algebra and logic”

   Events Pages: 223 - 223