Facts
Citation
URLhttps://en.wikipedia.org/wiki/K%C3%B6nig%27s_theorem_(set_theory)
Sources
Konig's theorem (set theory), Wikipedia
Lead sectionQuote, Lead section
However, without the use of the axiom of choice, the sum and the product cannot be defined as cardinal numbers, and the meaning of the inequality sign would need to be clarified.
Claims Backed By This Source (6 claims)
This source backs 6 claims across the atlas. As facts: 4 well-attested. Plus 2 entities citing it as a general reference with no single fact or relationship attached.
Disposition By Topic
- Theorems, 5 claims: 3 well-attested, 2 general references.
- Sources, 1 claims: 1 well-attested.
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