1. Nondeterministic three-valued logic: Isotonic and guarded truth-functions

   • Peter Päppinghaus
   • Martin Wirsing

   OriginalPaper Pages: 1 - 22

2. Topological duality for distributive Ockham algebras

   • Moshe S. Goldberg

   OriginalPaper Pages: 23 - 31

3. Logical matrices and non-structural consequence operators

   • Brunetto Piochi

   OriginalPaper Pages: 33 - 42

4. Chang's modal operators in algebraic logic

   • George Georgescu

   OriginalPaper Pages: 43 - 48

5. There are\(2^{\aleph _0 } \) logics with the relevance principle betweenR andRM

   • Wiesław Dziobiak

   OriginalPaper Pages: 49 - 61

6. Modal logics of domains on the real plane

   • V. B. Shehtman

   OriginalPaper Pages: 63 - 80

7. Semantics in Banach spaces

   • Sławomir Bugajski

   OriginalPaper Pages: 81 - 88

8. Matrices, primitive satisfaction and finitely based logics

   • Janusz Czelakowski

   OriginalPaper Pages: 89 - 104

9. Books received

   • Jan Zygmunt
   • Ewa Orłowska
   • Jan Woleńskl

   Announcement Pages: 105 - 111

10. Mail box

    • Ludwik Borkowski

    Announcement Pages: 113 - 113