Statements (29)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:set_theory
|
| gptkbp:abbreviation |
gptkb:NF
|
| gptkbp:category |
gptkb:logic
foundations of mathematics |
| gptkbp:consistencyStatus |
consistent (for NFU)
open (for NF) |
| gptkbp:feature |
avoids Russell's paradox
universal set exists uses stratified comprehension |
| gptkbp:hasAxiom |
extensionality axiom
stratified comprehension axiom |
| gptkbp:hasVariant |
gptkb:NFU
|
| gptkbp:influenced |
gptkb:NFU
set theory research |
| gptkbp:influencedBy |
gptkb:logic
|
| gptkbp:introduced |
gptkb:Willard_Van_Orman_Quine
|
| gptkbp:introducedIn |
1937
|
| gptkbp:NFUStandsFor |
gptkb:New_Foundations_with_Urelements
|
| gptkbp:notableIdea |
gptkb:comprehension_axiom
extensionality axiom universal set stratification urelements |
| gptkbp:publishedIn |
gptkb:American_Mathematical_Monthly
|
| gptkbp:relatedTo |
gptkb:Zermelo–Fraenkel_set_theory
Type theory |
| gptkbp:bfsParent |
gptkb:Axiom_of_Infinity
|
| gptkbp:bfsLayer |
6
|
| https://www.w3.org/2000/01/rdf-schema#label |
New Foundations set theory
|