what is the cardinality of the injective functuons from R to R?
lets say A={he injective functuons from R to R}
obviously, A<= 2א
I have no Idea from which group I have to find an injective function to A to show (The Cantor-Schroeder-Bernstein theorem) that A=> 2א
Tuesday, December 25, 2018
elementary set theory - what is the cardinality of the injective functuons from R to R?
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