Now consider the relation T := {h1, 2i,h1, 3i,h2, 1i,h2, 3i,h3, 1i,h3, 2i,h3, 4i,h4, 5i} on {1, 2, 3, 4, 5}.
1 What is the reflexive closure of T?
2 What is the symmetric closure of T?
3 What is the transitive closure of T?
4 What is the symmetric closure of ≥?