Hello

Here is the problem. Prove that

Where means the set of

functions from to .

So I have to come up with some kind of bijection between the two sets. Anything

which belongs to is a subset of

. I will need to associate this to some function from

to .

I am having difficulty coming up with such a bijection. Is it too difficult?. Or is there another approach to tackle this problem ?

(Emo)