Statements (19)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
logical connective
|
| gptkbp:alsoKnownAs |
gptkb:NOR
joint denial |
| gptkbp:arity |
binary
|
| gptkbp:expressiveCompleteness |
functionally complete
|
| gptkbp:function |
negation of disjunction
|
| https://www.w3.org/2000/01/rdf-schema#label |
Peirce arrow
|
| gptkbp:introducedIn |
1880s
|
| gptkbp:namedAfter |
gptkb:Charles_Sanders_Peirce
|
| gptkbp:notation |
A ↓ B
|
| gptkbp:operator |
A ↓ B = ¬(A ∨ B)
|
| gptkbp:relatedTo |
gptkb:Sheffer_stroke
|
| gptkbp:symbol |
↓
|
| gptkbp:truthTable |
true only when both inputs are false
|
| gptkbp:usedIn |
gptkb:algebra
gptkb:logic gptkb:digital_logic |
| gptkbp:bfsParent |
gptkb:Sheffer_stroke
|
| gptkbp:bfsLayer |
7
|