622KiB, 523x610, second.png View SameGoogleiqdbSauceNAO Anonymous Tue 13 Apr 19:13:09 2021 No.12970264 ViewReplyOriginalReport Quoted By: >>12970369 >>12972266 it by 2 not empty sets A and B it be B^A the set of all functions that go from A to B how do you show that |B^A| =|B|^|A| ?