1. Bases of admissible rules in modal logics S4.2 and S4.2Grz

   • S. V. Babenyshev

   OriginalPaper Pages: 63 - 70

2. A restricted analog of the third level of Rice's theorem for semantic classes of sentences

   • S. S. Zaurbekov

   OriginalPaper Pages: 71 - 75

3. Multiplicative formulas

   • A. I. Omarov

   OriginalPaper Pages: 75 - 80

4. Positive theories of free monoids

   • N. A. Peryazev

   OriginalPaper Pages: 80 - 86

5. Verbal products of groups

   • S. V. Rychkov

   OriginalPaper Pages: 87 - 96

6. Primitive Jordan triple systems

   • V. G. Skosyrski

   OriginalPaper Pages: 96 - 111

7. Infinite primal algebras and post varieties

   • D. M. Smirnov

   OriginalPaper Pages: 111 - 121

8. Letter to the editors

   • Yu. L. Ershov

   Letter Pages: 121 - 122