Bulletin of the Section of Logic 28/1 (1999)details

Table of contents

  • 1. Valentin GORANKO and Dimiter VAKARELOV, Modal logics of structures1

  • 2. Jacek MALINOWSKI, On the lattice of orthomodular logics11

  • 3. Paulo A.S. VELOSO, On ultrafilter logic and a missing axiom17

  • 4. Francisco SALTO and Jose M.MENDEZ, More on Peirce's law27

  • 5. Dolph ULRICH, New single axioms for positive implication39

  • 6. Marek NOWAK, A note on the logic CAR of da Costa and Beziau43