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In logic, more specifically proof theory, a Hilbert system, sometimes called Hilbert calculus, Hilbert-style system, Hilbert-style proof system, Hilbert-style deductive system or Hilbert–Ackermann system, is a type of formal proof system attributed to Gottlob Frege and David Hilbert. These deductive systems are most often studied for first-order logic…
Propositional logic, Overview & Predicate logic (example system)
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| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Hilbert system | is a | axiomatic system | 0.90 | text |
| this that ranges over formulae is called a 'schematic variable'.With a second rule of uniform substitution | instance of | A variable | 0.80 | text |
| Hilbert system | related to Conservative extensions | It | 0.60 | section |
| Hilbert system | related to Conservative extensions | Hilbert | 0.60 | section |
| Hilbert system | related to Conservative extensions | Given | 0.60 | section |
| Hilbert system | related to Conservative extensions | These | 0.60 | section |
| Hilbert system | related to Conservative extensions | When | 0.60 | section |
| Hilbert system | related to Formal deductions | In | 0.60 | section |
| Hilbert system | related to Formal deductions | Hilbert | 0.60 | section |
| Hilbert system | related to Formal deductions | These | 0.60 | section |
| Hilbert system | related to Formal deductions | Suppose | 0.60 | section |
| Hilbert system | related to Formal deductions | Gamma | 0.60 | section |
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