Intro to proofs – Compositions – Part 2/2

This is a video for a university course about Introduction to Mathematical Proofs.

Topics covered:

1. Composition of surjections is a surjection
2. Socks and shoes principle

3. Inverses and composition

This was originally made for the University of Toronto Mississauga in Summer 2020, for MAT102.

All material for the course can be found at:

Introduction to Proofs