If a 1 2 3 b 1 4 6 9 July 8, 2019 16 32 64 128 If a 1 2 3 5 and b 4 6 9 If a 1 2 3 b 1 4 6 9 and r is a relation from a to b A 1 2 3 4 5 6 If 1 2 3 If a=1 2 3 4 If 1 = 3 2 = 3
