What is the congruence class $[n_5]$ (that is, the equivalence class of n with respect to congruence modulo 5) when n is 6
I think it would be like $[6]_{5} \equiv[1]_5$ which is set of all numbers which leave a remainder of 1 when divided by 5.
but in rosen answer is given in format $\{i\, \equiv 6mod5\}$
So is my answer same as given in text?