One calculus of nonderivable formulas of propositional modal logic (Q1881787)
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scientific article; zbMATH DE number 2108241
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | One calculus of nonderivable formulas of propositional modal logic |
scientific article; zbMATH DE number 2108241 |
Statements
One calculus of nonderivable formulas of propositional modal logic (English)
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15 October 2004
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deduction tree
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variants of modal logic S4
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underivable formulas
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