1. On Pairs of Dual Consequence Operations

   • Urszula Wybraniec-Skardowska
   • Jacek Waldmajer

   OriginalPaper Open access 15 June 2011 Pages: 177 - 203

2. On Combined Connectives

   • A. Sernadas
   • C. Sernadas
   • J. Rasga

   OriginalPaper 01 September 2011 Pages: 205 - 224

3. Referential Opacity and Epistemic Logic

   • Saloua Chatti

   OriginalPaper 02 October 2011 Pages: 225 - 247

4. On Refutation Rules

   • Tomasz Skura

   OriginalPaper Open access 02 October 2011 Pages: 249 - 254

5. Dung’s Argumentation is Essentially Equivalent to Classical Propositional Logic with the Peirce–Quine Dagger

   • Dov M. Gabbay

   OriginalPaper 14 October 2011 Pages: 255 - 318

6. The Logic with Truth and Falsehood Operators from a Point of View of Universal Logic

   • Sergey Pavlov

   OriginalPaper 05 October 2011 Pages: 319 - 325

7. Constrained Consequence

   • Katarina Britz
   • Johannes Heidema
   • Ivan Varzinczak

   OriginalPaper 14 October 2011 Pages: 327 - 350