From the Editors
Willem Blok's Work in Algebraic Logic
Equational Characterization of the Subvarieties of BL Generated by t-norm Algebras
Order Algebras as Models of Linear Logic
Equational Bases for Joins of Residuated-lattice Varieties
Rule Separation and Embedding Theorems for Logics Without Weakening
The Variety of Lattice-Ordered Monoids Generated by the Natural Numbers
From Semirings to Residuated Kleene Lattices