Invertible and Non-Invertible Systems are covered by the following Timestamps:

0:00 - Invertible and Non-Invertible Systems
0:12 - Basics of Invertible and Non-Invertible Systems
5:15 - Difference between Invertible and Non-Invertible Systems
6:30 - Applications of Invertible and Non-Invertible Systems
7:52 - Examples of Invertible and Non-Invertible Systems