Encyclopedia > Weakly inaccessible cardinal

Article Content

Weakly inaccessible cardinal

A cardinal number κ > ‭א‬₀ is called weakly inaccessible iff cf(κ) = κ, where cf denotes the cofinality. Assuming that ZFC is consistent, the existence of weakly inaccessible cardinals provably cannot be proved in ZFC.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Ludvika

... The municipality covers an area of 1500.7 km². Of the total population of 26450, 13112 are male, and 13338 are female. The population density of the community is 18 ...