On closed classes containing precomplete classes of the set of all one-place functions (Q1275995)
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scientific article; zbMATH DE number 1240163
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On closed classes containing precomplete classes of the set of all one-place functions |
scientific article; zbMATH DE number 1240163 |
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On closed classes containing precomplete classes of the set of all one-place functions (English)
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14 January 1999
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Let \(P_k\) be the set of all functions of \(k\)-valued logic, \(\Psi\) be a closed class in \(P_k\). The superlattice of the class \(\Psi\) is the set of all classes \(\Phi \subseteq P_k\) such that \(\Psi\subseteq\Phi\). In this paper the author describes the superlattices of all precomplete classes in the class of all unitary functions for \(k\geq 3\).
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closed classes
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unitary functions
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superlattice
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precomplete classes
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