The Modal Formula (†) $\square \diamondsuit p \supset \square \diamondsuit \square \diamondsuit p$ Is Not First-Order Definable (Q3623840)
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| Language | Label | Description | Also known as |
|---|---|---|---|
| English | The Modal Formula (†) $\square \diamondsuit p \supset \square \diamondsuit \square \diamondsuit p$ Is Not First-Order Definable |
scientific article |
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The Modal Formula (†) $\square \diamondsuit p \supset \square \diamondsuit \square \diamondsuit p$ Is Not First-Order Definable (English)
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24 April 2009
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modal logic
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ability logic
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first-order definability of modal formulas
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modal reduction principles
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