00:01
Okay, so for a given set, its subset is basically a set of things which are in that particular set, but are related in some conditional ways to each other.
00:12
So here we consider the set of 1, 2, 3, and 4.
00:17
Now the possible subsets of this given set are as follows.
00:23
So we have, well, the set just containing 1, 2, 2, 3, 3, 3.
00:37
Three, four, and then we have the set containing one and two.
00:53
Okay, and then we have the set containing one and three, and then we have a set containing one in four, and then we have the set containing, well, two and three.
01:17
Look at all possible two sets here, and the set containing two and four, right? we already have one and two here.
01:31
Then we go, and we have a set containing three and four.
01:39
And then we look at, that's it for two element sets.
01:44
And then going to three elements sets, we have the set containing one, two, and three.
01:50
So one, two, and three...