Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
set-theoretic forcing
|
| gptkbp:adds |
a Silver real
|
| gptkbp:category |
forcing notion
|
| gptkbp:condition |
partial function from ω to 2 with coinfinite domain
|
| gptkbp:destroyedBy |
CH (Continuum Hypothesis)
|
| gptkbp:heldBy |
proper forcing
not ccc not σ-closed ω₁-preserving |
| https://www.w3.org/2000/01/rdf-schema#label |
Silver forcing
|
| gptkbp:introduced |
gptkb:Jack_Silver
|
| gptkbp:namedAfter |
gptkb:Jack_Silver
|
| gptkbp:preserves |
cofinalities of cardinals
stationary subsets of ω₁ |
| gptkbp:relatedTo |
gptkb:Sacks_forcing
gptkb:Mathias_forcing gptkb:Cohen_forcing |
| gptkbp:usedFor |
independence proofs in set theory
add a new real |
| gptkbp:usedIn |
gptkb:set_theory
|
| gptkbp:bfsParent |
gptkb:Cohen's_forcing
|
| gptkbp:bfsLayer |
5
|