Primitive positive clones which are endomorphism clones (Q1104958)
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scientific article; zbMATH DE number 4057584
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Primitive positive clones which are endomorphism clones |
scientific article; zbMATH DE number 4057584 |
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Primitive positive clones which are endomorphism clones (English)
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1987
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A first-order formula is primitive positive if it is of the form \(\exists \wedge atomic\). Given a first-order structure A the set of predicates on A defined by primitive positive formulas is called the primitive positive clone of A. The author shows that in some important cases the primitive positiy integral calculus textbook; several variables. See the review of the first edition (1974) in this Zbl 0298.26001.
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bicentrally closed clone
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primitive positive formulas
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primitive positive clone
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