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Generalized continuum hypothesis

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Summary

The assertion 2κ=κ+2^\kappa=\kappa^+ for every infinite cardinal κ\kappa.

Record metadata

Carrier(s)

Notes

GCH implies CH and is independent of ZFC, relative to the consistency of ZFC.

Concept sources

Incoming relations (arrows to this concept)

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No direct relations are authored in this direction.

Outgoing relations (arrows from this concept)

Each relation below starts at this concept.

Generalized continuum hypothesisBeth hierarchy

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

GCH identifies the beth and aleph hierarchies at every ordinal index.

How to interpret this relation type

Record a genuine theorem implication that is not part of the target definition; these edges may point toward a weaker structure.

Relation sources

Generalized continuum hypothesisContinuum hypothesis

Permalink to relation

This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Taking κ=0\kappa=\aleph_0 in GCH yields CH.

How to interpret this relation type

Record a genuine theorem implication that is not part of the target definition; these edges may point toward a weaker structure.

Relation sources