Statements (15)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:mathematical_concept
|
| gptkbp:appliesTo |
normal modal logics
|
| gptkbp:concerns |
gptkb:Sahlqvist_formulas
|
| gptkbp:establishes |
correspondence between modal formulas and first-order conditions
|
| gptkbp:field |
gptkb:logic
|
| https://www.w3.org/2000/01/rdf-schema#label |
Sahlqvist theorem
|
| gptkbp:implies |
Sahlqvist formulas are canonical
Sahlqvist formulas are complete |
| gptkbp:namedAfter |
gptkb:Henrik_Sahlqvist
|
| gptkbp:provenBy |
canonicity of Sahlqvist formulas
completeness of Sahlqvist formulas |
| gptkbp:publishedIn |
gptkb:Journal_of_Symbolic_Logic
|
| gptkbp:yearProposed |
1975
|
| gptkbp:bfsParent |
gptkb:Hanna_Sahlqvist
|
| gptkbp:bfsLayer |
6
|