Name:
Anonymous
2011-09-07 18:25
Proave A = B by showing A is a subset of B and B is a subset of A using a direct proof.
I have no fucking idea how to do this.
Name:
Anonymous
2011-09-08 7:42
Give an injective function that maps all the elements of set A to set B.
Give another injective function that maps all the elements of set B to set A.
You're done.
Name:
Anonymous
2011-09-08 8:18
>>6
You just managed to prove they have the same cardinal.