Friday, April 14, 2017

elementary set theory - An explicit bijection between the power set $mathcal P left({mathbb{N}}right)$ and $2^mathbb{N}$.

I know how to show that these two have the same cardinality and from that there must be a bijection between them.



Can anyone help with an explicit bijection between these sets?

No comments:

Post a Comment

analysis - Injection, making bijection

I have injection $f \colon A \rightarrow B$ and I want to get bijection. Can I just resting codomain to $f(A)$? I know that every function i...