2001/21/1

The Słupecki criterion by duality

On exponentiation on n-ary hyperalgebras

On distributive trices

Cantor extension of a half lineary cyclically ordered group

Generalized morphisms of abelian m-ary groups

Some properties of congurence relations on orthomodular lattices

The vector cross product from an algebraic point of view

Hypersubstitutions in orthomodular lattices

Solution of Belousov's problem

Balanced congruences

On the special context of independent sets