One to one functions part 1

I explain in some detail these slides about one-to-one functions. This is the first part of 3 videos explaining

1- Definition and examples of one-to-one functions
2- One-to-one functions, counterexamples.
3-Theorems on one-to-one functions

Slides can be downloaded from

The reference book for these slides is

A Transition to Advanced Mathematics 8th Edition,
by Douglas Smith, Maurice Eggen, Richard St. Andre. ISBN-13: 978-1285463261, published by Cengage Learning (August 6, 2014).