Thread: Equivalence Classes

How many equivalence classes does this have?

{(x,y)|x^2 = y^2 mod 9}

Originally Posted by colombianita2089

How many equivalence classes does this have?{(x,y)|x^2 = y^2 mod 9}

Let's be clear on some points.
Is this a relation on the integers?
Are you saying that (-4,14) would belongs to the relation?

its a relation on N {0,1,2.....}

Originally Posted by colombianita2089

its a relation on N {0,1,2.....}

Well how many remainder classes modulo nine for are there?