On the Properties of the Möbius Function
Jastrzebska, Magdalena, Grabowski, Adam
Two Axiomatizations of Nelson Algebras
Grabowski, Adam
Preface
Grabowski, Adam, Shidama, Yasunari
Introduction to Formal Preference Spaces
Niewiadomska, Eliza, Grabowski, Adam
Tarski Geometry Axioms – Part II
Coghetto, Roland, Grabowski, Adam
On the Lattice of Intervals and Rough Sets
Grabowski, Adam, Jastrzębska, Magdalena
On Two Alternative Axiomatizations of Lattices by McKenzie and Sholander
Grabowski, Adam, Sawicki, Damian
On the Permanent of a Matrix
Romanowicz, Ewa, Grabowski, Adam
Formalization of Generalized Almost Distributive Lattices
Grabowski, Adam
On Square-Free Numbers
Grabowski, Adam
Elementary Number Theory Problems. Part VI
Grabowski, Adam
Polygonal Numbers
Grabowski, Adam