Sets, Relations...

For real numbers x and y, we write xRy ⇒ x – y + √2 is an irrational number. Then the relation R is

Let X be a family of sets and r be a relation on X defined by A is disjoint from B’. Then R is

If R is a relation from a set A to set B and S is a relation from B to a seat C, then the relation SoR

Let W denote the words in the English dictionary. Define the relation R by : R = {(x, y) ϵ W × W| the words x and y have at least one letter in common}

If R be a relation < from A = {1,2,3,4} to B = {1,3,5} i.e. (a, b) ϵ R ⇒ a < b, then RoR^–1 is

A relation from P to Q is

Let A = {a,b, c} and B = {1, 2}. Consider a relation R defined from set A to set B. Then R is equal to set

On the set N of all natural numbers definite the relation R by aRb if and only if the G.C.D. of a and b is 2, then R is

Let R be a relation of the set of integers given by aRb ⇒ a = 2^k.b for some integers k. Then R is

Let R be a reflexive relation on a finite set A having n – elements, and let there be m ordered pairs in R. Then