On neighbourhood product of some Horn axiomatizable logics
Andrey Valer'evich Kudinov · Logic Journal of IGPL · 2018
The paper considers modal logics of products of neighbourhood frames. The n-product of modal logics is the logic of all products of neighbourhood frames of the corresponding logics. We find the n-product of any two pretransitive Horn axiomatizable logics. As a corollary, we find the d-logic of products of topological spaces from some classes of topological spaces.