2019-12-18 Mathematics Meaning of A^B Where A and B Are Sets It means the set of maps from $B$ to $A$: $A^B = \{ \text{functions from } B \text{ to } A \}$ Rerferences https://math.stackexchange.com/questions/3480579/meaning-of-ab-where-a-and-b-are-sets https://en.wikipedia.org/wiki/Power_set#Representing_subsets_as_functions Older Hexo World 2