The relation R defined in the set N of natural numbers defined as R = {(x, y): y = x+ 5 and x <4} is-
Answer & explanation
Correct answer: option 3
R = {(x, y): y = x+ 5 and x <4} = {(1, 6), (2, 7), (3, 8) }
It is seen that (1, 1) ∉ R.
So, R is not reflexive.
(1, 6) ∈ R
But (6, 1) ∉ R.
So, R is not symmetric.
Now, since there is no pair in r such that (x, y) and (y, z) ∈ R so, we need not look for the ordered pair (x, z) in R.
So R is transitive.
Hence R is neither reflexive, nor symmetric but it is transitive only.