00:01
All right, you have this set a and in this set a are the numbers one, two, and three.
00:06
I'm just going to draw a set a over here, and here's one, and two, and three.
00:12
And there are some equivalence relation r that's broken it up into equivalence classes, and the equivalence classes are one is one of them, and two and three are the other.
00:25
So that tells you that the partition of a is the set of the set, one and two, two, three.
00:33
Okay, then as that.
00:34
That's just extra information.
00:37
Okay, so then r is the set of ordered pairs that form this partition.
00:42
So one is only related to itself, all right? and then in the, hope i wrote that the wrong color, oops, because that's coming from the red one...