Question

if n is 4 then the number of equivalance relations

Answer 1

Answer:

So there are 1+7+6+1=15 equivalence relations for n=4.

Answer 2

Answer:

hope it helps ya

Step-by-step explanation:

there are, in total 1+4+3+6+1=15 partitions on {1, 2, 3, 4}{1, 2, 3, 4}, and thus 15 equivalence relations