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cs.LO2023
The fork and its role in unification of closure algebras
Ivo Düntsch, Wojciech Dzik
We consider the two-pronged fork frame and the variety generated by its dual closure algebra . We describe the finite projective algebras in $\mathbf{Eq…
math.LO2023
Betweenness algebras
Ivo Duentsch, Rafal Gruszczynski, Paula Menchon
We introduce and study a class of betweenness algebras-Boolean algebras with binary operators, closely related to ternary frames with a betweenness relation. From various axioms fo…