Positive formulas in free semigroups (Q1215496)
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scientific article; zbMATH DE number 3472035
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Positive formulas in free semigroups |
scientific article; zbMATH DE number 3472035 |
Statements
Positive formulas in free semigroups (English)
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1975
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