cardinal characteristics of the continuum
GPTKB entity
Statements (44)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:mathematical_concept
|
| gptkbp:example |
additivity of the null ideal
almost disjointness number bounding number cofinality of the null ideal covering number for the meager ideal covering number for the null ideal dominating number reaping number splitting number uniformity of the null ideal |
| gptkbp:field |
gptkb:set_theory
|
| https://www.w3.org/2000/01/rdf-schema#label |
cardinal characteristics of the continuum
|
| gptkbp:notation |
gptkb:๐_(bounding_number)
add(๐) (additivity of the meager ideal) add(๐) (additivity of the null ideal) cof(๐) (cofinality of the meager ideal) cof(๐) (cofinality of the null ideal) cov(๐) (covering number for the meager ideal) cov(๐) (covering number for the null ideal) non(๐) (uniformity of the meager ideal) non(๐) (uniformity of the null ideal) ๐ (almost disjointness number) ๐ (cardinality of the continuum) ๐ก (dominating number) ๐ฏ (reaping number) ๐ฐ (splitting number) |
| gptkbp:relatedTo |
gptkb:continuum_hypothesis
gptkb:ZFC_(ZermeloโFraenkel_set_theory_with_Choice) gptkb:Martin's_axiom gptkb:Cichoล's_diagram gptkb:continuum_(set_theory) gptkb:forcing_(set_theory) real numbers cardinal number independence results cardinality aleph-null cardinality aleph-one |
| gptkbp:studiedBy |
gptkb:Saharon_Shelah
gptkb:Andrรกs_Hajnal gptkb:Paul_Erdลs |
| gptkbp:bfsParent |
gptkb:combinatorial_set_theory
gptkb:Martin's_axiom |
| gptkbp:bfsLayer |
6
|