First-order definability on finite structures (Q1263576)
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scientific article; zbMATH DE number 4127181
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | First-order definability on finite structures |
scientific article; zbMATH DE number 4127181 |
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First-order definability on finite structures (English)
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1989
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The author proves an undefinability result for a simple graph-theoretic property. He then shows that existential first-order formulas have a nontrivial hierarchy on finite structures.
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existential hierarchy
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connectedness
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undefinability
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graph-theoretic property
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finite structures
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