Kazimierz. Swirydowicz, Upper Part of the Lattice of Extensions of the Positive Relevant Logic R+; pp. 3 - 13; Full text - pdf
Rafal Urbaniak, On Ontological Functors of Lesniewski's Elementary Ontology; pp. 15 - 43; Full text - pdf
Lloyd Humberstone, Extensions of Intuitionistic Logic Without the Deduction Theorem: Some Simple Examples; pp. 45 - 82; Full text - pdf
Claudia Sanza, n x m Łukasiewicz algebras with parameters; pp.83 - 106; Full text - pdf
Roland Hinnion, Intensional positive set theory; pp. 107 - 125; Full text - pdf
Juan Climent Vidal and Juan Soliveres Tur, On the completeness theorem of many-sorted equational logic and the equivalence between Hall algebras and Bénabou theories; pp. 127 - 158; Full text - pdf
Marcin Kysiak, A note on transitive sets without the foundation axiom; pp. 159 - 163; Full text - pdf
Christian Delhommé and Marianne Morillon, Spanning graphs and the Axiom of Choice; pp. 165 - 180; Full text - pdf
Luís A. Sbardellini and Marcelo E. Coniglio, Some results on ordered structures in toposes; pp. 181 - 198; Full text - pdf
Luiz Monteiro, Manuel Abad, Sonia Savini, Julio Sewald and Marta Zander, Subalgebras of a finite monadic Boolean Algebra; pp. 199 - 206; Full text - pdf
Alexandre A. M. Rodrigues , Ricardo C. Miranda Filho , Edelcio G. de Souza, Invariance and Set-Theoretical Operations in First Order Structures; pp. 207 - 213; Full text - pdf