| 1. Roman SUSZKO, Some notions and theorems of McKinsey and Tarski and SCI | 3 |
| 2. Stanislaw J.SURMA, Andrzej WRONSKI and Stanislaw ZACHOROWSKI, On Jaskowski-type semantics for the intuitionistic propositional logic | 6 |
| 3. Andrzej WRONSKI, On equivalential fragments of some intermediate logics | 11 |
| 4. Ewa GRACZYNSKA and Andrzej WRONSKI, On the construction of matrices strongly adequate for pre-finite logics | 15 |
| 5. Malgorzata T.POREBSKA and Andrzej WRONSKI, A characterization of the intuitionistic propositional logic | 19 |
| 6. Marek TOKARZ, A method of axiomatization of Luaksiewicz logics | 21 |
| 7. Grzegorz MALINOWSKI, S-algebras for n-valued sentential calculi of Lukasiewicz | 25 |
| 8. Janusz CZELAKOWSKI, Logics based on partial Boolean σ-algebras | 31 |
| 9. Pawel BIELAK, A note on weak functional completeness | 38 |
| 10. Ryszard WOJCICKI, Degree of maximality versus degree of completeness | 41 |