Date: Mar 25, 2013 3:37 PM Author: Ming Wang Subject: Equivalence relation: describe the distinct equivalence classes Describe the distinct equivalence classes of the following relation.

Let P be a set of parts shipped to a company from various

suppliers. S is the relation defined on P as follows: For all x, y in P,

x S y<=>x has the same part number and is shipped from the same supplier as y.