Inverses for normal modal operators (Q1370458)
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scientific article; zbMATH DE number 1078606
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Inverses for normal modal operators |
scientific article; zbMATH DE number 1078606 |
Statements
Inverses for normal modal operators (English)
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26 October 1997
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A modality \(L\) is a left inverse of \(\square\) in a logic S if \(L\square p\leftrightarrow p\) is provable in S. Existence of inverses is connected to derivability of \(\square^m p\leftrightarrow p\) in S.
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modal logic
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left inverses of modal operators
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