Abstract
Generalizing relational structures and formal languages to structures whose relations are evaluated by elements of a lattice, we show that such structure classes form a Heyting algebra if and only if the evaluation lattice is a Heyting algebra. Hence various new and some older results obtained for Heyting algebras can be applied to such structure classes.
2000 Mathematics Subject Classification. Primary: 03E02. Secondary: 22F05, 05C55, 05D10, 22A05, 51F99.
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Sauer, N.W. (2011). On the General Coloring Problem. In: Calude, C.S., Rozenberg, G., Salomaa, A. (eds) Rainbow of Computer Science. Lecture Notes in Computer Science, vol 6570. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-19391-0_9
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DOI: https://doi.org/10.1007/978-3-642-19391-0_9
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