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Question

Answer the question number 3.
3. A relation {(x,y) I y = x+5 and x<4} is defined on set of natural numbers N. Examine this relation is reflexive symmetric or transitive? 3. A relation {(x,y) I y = x+5 and x<4} is defined on set of natural numbers N. Examine this relation is reflexive symmetric or transitive?

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Solution

Dear student
R=x,y:y=x+5 and x<4=1,6,2,7,3,8It is seen that 1,1RSo, R is not reflexive.1,6RBut, 6,1RSo, R is not symmteric.Now, since there is no pair in R such that x,y and y,z R then x,z cannot belong to R.So, R is not transitive.Hence R is neither reflexive nor symmteric nor transitive.

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