Binary Relations | Reflexive, Symmetric, Transitive relations 

(2, 3) in R we have (3, 2) in R, but this does not guarantee the relation is symmetric because we have to check for all ordered pairs. In this case the condition for symmetry was violated by the (2, 4), so there was no need to look at the (2,3). If one condition has been violated then it’s not symmetric, no need to check others.

Because here we are now checking for transitive: whenever (a,b) in R and (b,c) in R then (a,c) in R

@@HarareMaths so how are we pairing, like choosing pairs to check