A new characterization of complete Heyting and co-Heyting algebras
Abstract
We give a new order-theoretic characterization of a complete Heyting and co-Heyting algebra C. This result provides an unexpected relationship with the field of Nash equilibria, being based on the so-called Veinott ordering relation on subcomplete sublattices of C, which is crucially used in Topkis' theorem for studying the order-theoretic stucture of Nash equilibria of supermodular games.
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