On Pairs of Dual Consequence Operations Urszula Wybraniec-SkardowskaJacek Waldmajer OriginalPaper Open access 15 June 2011 Pages: 177 - 203
On Combined Connectives A. SernadasC. SernadasJ. Rasga OriginalPaper 01 September 2011 Pages: 205 - 224
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
The Logic with Truth and Falsehood Operators from a Point of View of Universal Logic Sergey Pavlov OriginalPaper 05 October 2011 Pages: 319 - 325
Constrained Consequence Katarina BritzJohannes HeidemaIvan Varzinczak OriginalPaper 14 October 2011 Pages: 327 - 350