2 items are filed under this topic.








An equivalence relation 
20080827 

From Francesca: In this problem we are told to find out if the given set is an equivalence relation or not.
{(x,y) such that 4 divides xy}. What I am confused about is whether or not for instance if I picked (1,5) as a part of the set whether I could put in (5,1) as well or whether that would be wrong. Thanks! Answered by Victoria West. 





An order relation 
20010212 

From Amy: What is an order relation? Answered by Claude Tardif. 


