What are the Types of Relations in Set Theory https://www.youtube.com/watch?v=FI6j5QZNVx0 Relations Definition : Let A and B be two non-empty sets, then every subset of A × B defines a relation from A to B and every relation from A to B is a subset of A × B. Let R ⊆ A × B and (a, b) ∈ R. Then we say that a is related to b by the relation R and write it as a R b. If (a, b) … [Read more...] about What are the Types of Relations in Set Theory