No5

A, (a, a)gf R. That is, e) a has the same first name as b. d) a and b have a common grandparent. a in A is related to itself. S. Determine whether the relation R on the set of all Web11. Which relations in Exer 12. Which relations in Exei 13, Which relations in Exe bagesis meflexive, symmetric, antisymmetric, and/or tran sitive, where (a, b) e R if and only if a) everyone who has visited Web page a has also visited 14. Which relations in Exer 15. Can a relation on a set b b) there are no common links found on both Web 16. Use quantifiers to expru Web page b. page a and Web page b. Web page b. be irreflexive. e) there is at least one common link on Web page a and17. Give an example of an i people. ER. This shows that RAFICR, completing the proof. 4 d) there is a Web page that includes links to both Web page d and Web page l. 6. Determine whether the relation R on the set of all real umbers is reflexive, symmetric, antisymmetric, and/or transilive, where (, y) c R if and only if