free access to logica universalis

[Universal Logic]

Free access to all papers published in Logica Universalis is avalaible up
to November 30:
http://www.springer.com/birkhauser/mathematics/journal/11787

Last issue of the journal is on the topic "is logic universal?"
In the next future there will be special issues of the journal on the
following topics:
- Logic diagrams
- Multimodal logics
- Categorical logics
- Hexagon of opposition

Among many interesting papers published since the start of the journal -
freely downloadable up to November 30 -  you can find:

Birkhoff Completeness in Institutions
Mihai Codescu and Daniel Gaina

Symmetric Generalized Galois Logics
Katalin Bimbo and J. Michael Dunn

Abelian Logic and the Logics of Pointed
Lattice-Ordered Varieties
Francesco Paoli, Matthew Spinks and Robert Veroff

A Galois Connection
Stan J. Surma

A Global Glance on Categories in Logic
Peter Arndt, Rodrigo de Alvarenga Freire, Odilon Otavio
Luciano and Hugo Luiz Mariano

Distributive-Lattice Semantics of Sequent
Calculi with Structural Rules
Alexej P. Pynko

Abstract Logics, Logic Maps, and Logic
Homomorphisms
Steffen Lewitzka