| 1. Ewa GRACZYNSKA, On regular and symmetric identities II | 100 [PDF 2009] |
| 2. Bui Huy HIEN, On a problem in algebraic model theory | 103 [PDF 2009] |
| 3. G.E.HUGHES and M.J.CRESSWELL, K1.1 is not canonical | 109 [PDF 2009] |
| 4. Ewa ORLOWSKA, Logic of vague concepts | 115 [PDF 2009] |
| 5. Ewa ORLOWSKA, Tense logic for nondeterministic time | 92 [PDF 2009] |
| 6. Boguslaw WOLNIEWICZ, A closure system for elementary situations | 134 [PDF 2009] |
| 7. Dolph ULRICH, Answer to a question raised by Harrop | 140 [PDF 2009] |
| 8. M.FERENCZI, Measures on cylindric algebras | 142 [PDF 2009] |
| 9. Andrzej BIELA and Wieslaw DZIOBIAK, On two properties of structurally complete logics | 154 [PDF 2009] |
| 10. Wieslaw DZIOBIAK, There are 2ω with the relevance between R and RM | 161 [PDF 2009] |
| 11. Steve GIAMBRONE, Gentzen systems and decision procedures for relevant logics | 169 [PDF 2009] |