Cantor's theorem

English

Etymology

Named after German mathematician Template:W (1845-1918) who stated and proved this theorem.

Proper noun

1. Template:Lb 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. Template:C