EDB — 02Y

Exercises

1. [02Y] Recall that \(A^ B\) is the set of all functions \(f:B→ A\). If \(A,B\) are finite non-empty sets show that \(| A^ B|=| A|^{| B|} \). What happens if one set, or both sets, are empty?

   Solution 1

   [02Z]↺↻