Discrete Math: Find Union and Intersection of A_i = {1,2,3,...,i} from i=1 to n

Solution to Question 47, Chapter 2.1 of the text Discrete Mathematics and Its Applications by Kenneth Rosen. The question defines a family of set A_i = {1,2,3,...,i} and asks us to find the union and intersection of these sets from i = 1 to n.

Chapters:
00:00 Problem Introduction
00:49 What is A?
02:09 Union Notation Explanation
03:21 The Union of A from i = 1 to n
05:46 Intersection Notation Explanation
07:06 The Intersection of A from i=1 to n
08:27 Conclusion

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