WEBVTT 00:02.100 --> 00:09.610 Sets are used when the existence of an item in a collection is more important than the order or the 00:09.620 --> 00:10.780 occurrence. 00:10.920 --> 00:21.480 In short sacks are unordered collection of simple objects let's define sets you say may be equal to 00:23.220 --> 00:23.700 set 00:27.480 --> 00:28.980 and then we'll say 00:33.350 --> 00:35.540 a b 00:40.250 --> 00:40.480 the 00:48.300 --> 01:00.850 So if we wanted to see that is there and certainly say a true C a baby. 01:02.120 --> 01:14.540 Both if we wanted to create a copy of the set we can say A B C equal to A B copy 01:20.700 --> 01:25.740 then it I don't do the set. 01:25.790 --> 01:27.060 ABC. 01:32.010 --> 01:32.260 The 01:39.880 --> 01:45.230 we can also remove an item from the set. 01:45.390 --> 01:46.450 A baby 01:50.170 --> 01:50.410 B 02:01.280 --> 02:04.980 to perform intersection between two sets. 02:05.000 --> 02:08.450 C A B. 02:12.800 --> 02:13.520 ABC 02:19.750 --> 02:26.410 A and C are common solely these two values are retrieved. 02:26.560 --> 02:29.660 This was the brief introduction of set.