1. Countably Many Weakenings of Belnap–Dunn Logic

   • Minghui Ma
   • Yuanlei Lin

   OriginalPaper 12 December 2018 Pages: 163 - 198

2. When is a Schema Not a Schema? On a Remark by Suszko

   • Lloyd Humberstone
   • Allen Hazen

   OriginalPaper 02 January 2019 Pages: 199 - 220

3. Complexity of the Universal Theory of Modal Algebras

   • Dmitry Shkatov
   • Clint J. Van Alten

   OriginalPaper 17 January 2019 Pages: 221 - 237

4. Extended Contact Algebras and Internal Connectedness

   • Tatyana Ivanova

   OriginalPaper 24 January 2019 Pages: 239 - 254

5. Epimorphisms, Definability and Cardinalities

   • T. Moraschini
   • J. G. Raftery
   • J. J. Wannenburg

   OriginalPaper 07 February 2019 Pages: 255 - 275

6. Infinite Forcing and the Generic Multiverse

   • Giorgio Venturi

   ReviewPaper 12 February 2019 Pages: 277 - 290

7. Normality, Non-contamination and Logical Depth in Classical Natural Deduction

   • Marcello D’Agostino
   • Dov Gabbay
   • Sanjay Modgil

   OriginalPaper 18 February 2019 Pages: 291 - 357

8. Simple Axiomatizations for Pretabular Classical Relevance Logics

   • Asadollah Fallahi

   OriginalPaper 19 February 2019 Pages: 359 - 393