1

On Independence of Variants of the Weak Pigeonhole Principle

E-Article
2

Preservation by fibring of the finite model property

E-Article
3

On meet-combination of logics

E-Article
4
5

Preservation of Interpolation Features by Fibring

E-Article
6

The complexity of admissible rules of Lukasiewicz logic

E-Article
7
8

Proof Complexity of the Cut-free Calculus of Structures

E-Article
9

On Graph-theoretic Fibring of Logics

E-Article
10

Admissible Rules of Lukasiewicz Logic

E-Article
11

A Graph-theoretic Account of Logics

E-Article
12

Bases of Admissible Rules of Lukasiewicz Logic

E-Article