let S = {1,2,3,4}
Explain why each of the below is not an equivalence relation.
{ (1,1), (1,2), (2,1), (2,2), (3,3) }
{ (1,1), (1,2), (2,3), (1,3), (2,2), (3,3), (4,4) }
{ (1,1), (2,2), (3,3), (4,4), (2,3), (3,2), (2,4), (4,2)}
I am having difficulty trying to understand the 3 condition
- Reflexive
- Symmetric
- Transitive
Would appreciate if anyone would to provide me with the guidance.
Thanks