Modal formulas are either elementary or not ΣΔ-elementary (Q4103508)
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scientific article; zbMATH DE number 3526641
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Modal formulas are either elementary or not ΣΔ-elementary |
scientific article; zbMATH DE number 3526641 |
Statements
Modal formulas are either elementary or not ΣΔ-elementary (English)
0 references
1976
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