Question:
4 Congruence relations Recall the congruence relation of
Last updated: 3/11/2024

4 Congruence relations Recall the congruence relation of numbers congruence modulo n Let s define R4 the binary relation of congruence modulo 4 on Z Let R x y ZxZ x y mod 4 1 Calculate 0 1 2 3 4 5 You can enumerate the elements 2 How many distinct equivalence classes are there Justify your answer 3 Are the equivalence classes disjoint empty intersection What is their union