# The Cantor-Schröder-Bernstein Theorem

This theorem is very helpful when proving that two sets have the same cardinality. (In class I erroneously called it the “Cantor-Schröder-Bendixson Theorem”. My apologies to Messrs. Bernstein and Bendixson)

In class I only sketched a proof, Wikipedia has a full proof, along with further material and links.

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