Question

Continuation of equivalence classes.

Answer 1

So, my answwer was (n,m) = {(n-(n-1), m+(n-1)), (n-(n-2), m+(n-2)), …} But i'm not sure if this is right. any help?

Answer 2

@ganeshie8 @dan815

Answer 3

for part a, just show that R is reflexive, symmetric and transitive