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Named after German mathematician George Cantor (1845-1918) who stated and proved this theorem.
Etymology from Wiktionary, CC BY-SA 4.0.
Cantor's theorem
Today it means: A theorem in set theory which states for any set A, the set of all subsets of A (the power set of A, denoted by 𝒫(A)) has a strictly greater cardinality than A itself. Full definition →