Consider the students at SNU who live in campus housing Let

Consider the students at SNU who live in campus housing. Let R be the relation between those students and the dorm rooms given by R =(student name, dorm room). For example, one ordered pair in R is (Skylar Blackburn. Hills G406). Is this a one-to one relation? If so, explain why. If not. explain why not.

Solution

It is not one -one

Since a dorm room or hall of residence is a building or residential quarters for large no.of people.

So if R be relation given by R =(student name,dorm name).

So a room my be shared by more than one persons.

Let X,Y be persons shared dorm room no.1.

So R ={(X,1),(Y,1)}. So this is not a one one relation