1. Replacement—A Sheffer Stroke for Belief Change

   • Sven Ove Hansson

   OriginalPaper 04 February 2009 Pages: 127 - 149

2. A Loop-Free Decision Procedure for Modal Propositional Logics K4, S4 and S5

   • Dorota Leszczyńska-Jasion

   OriginalPaper 16 August 2008 Pages: 151 - 177

3. Inexact Knowledge with Introspection

   • Denis Bonnay
   • Paul Égré

   OriginalPaper 12 September 2008 Pages: 179 - 227

4. ‘Now’ and ‘Then’ in Tense Logic

   • Ulrich Meyer

   OriginalPaper 06 August 2008 Pages: 229 - 247