Let R be a relation from N to N defined by R = {(a, b):a, b ϵ N and a = b2 } Then which of the following is not true?
All of the above
(a, b) ϵ R, (b, c) ϵ R → (a, c) ϵ R
(a, b) ϵ R → (b, a) ϵ R
(a, a) ϵ R, for all a ϵ N
Let R be a relation from N to N defined by R = {(a, b) : a,bϵN and a=b2}.
Are the following statements true ?
(i) (a,a)ϵR for all aϵN
(ii) (a,b)ϵR⇒(b,a)ϵR.
(iii) (a,b)ϵR and (b,c)ϵR⇒(a,c)ϵR.
Let R be a relation from N to N defined by R = {(a, b): a, b ∈ N and a = b2}. Are the following true?
(i) (a, a) ∈ R, for all a ∈ N (ii) (a, b) ∈ R, implies (b, a) ∈ R
(iii) (a, b) ∈ R, (b, c) ∈ R implies (a, c) ∈ R.
Justify your answer in each case.
Let R be a relation from N to N defined by R={(a,b):a,b ϵ N and a=b2}. Are the following true?
(i) (a,a) ϵ R for all a ϵ N
(ii) (a,a) ϵ R implies (b,a) ϵ R
(iii) (a,b) ϵ R,(b,c) ϵ R implies (a,c) ϵ R