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Provability logic is a branch of proof theory and a modal logic, in which the box (or "necessity") operator is interpreted as 'it is provable that'. The point is to capture the notion of a proof predicate of a reasonably rich formal theory, such as Peano arithmetic.
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logic provability modal proof theory gl löb's pp operator references gödel logics mentioned theorem propositional paper robert solovay 1976 1996
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Provability logic | is a | branch of proof theory and a modal logic | 0.90 | text |
| Provability logic | related to Examples | There | 0.60 | section |
| Provability logic | related to Examples | References | 0.60 | section |
| Provability logic | related to Examples | The | 0.60 | section |
| Provability logic | related to Examples | GL | 0.60 | section |
| Provability logic | related to Examples | Gödel | 0.60 | section |
| Provability logic | related to Examples | Löb | 0.60 | section |
| Provability logic | related to Examples | K4W | 0.60 | section |
| Provability logic | related to Examples | It | 0.60 | section |
| Provability logic | related to Examples | Löb's | 0.60 | section |
| Provability logic | related to Examples | K4 | 0.60 | section |
| Provability logic | related to Examples | Namely | 0.60 | section |
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