Create a new thread containing the name of the topic/subtopic, the Chapter, location/page/section number in course textbook, and location/slide number/page in the Chapter presentation PDF in the thread title and minimum 300 words.

Sets and Maps

The initial post should summarize a subtopic/section from Chapter 18, 19, 20 and 21 . Create a new thread containing the name of the topic/subtopic, the Chapter, location/page/section number in course textbook, and location/slide number/page in the Chapter presentation PDF in the thread title and minimum 300 words. The post should be original and should not cover any previously posted topics. You are not going to earn any credit for duplicated topics. (Sets and Maps is chapter 21)