Proof: If A is a Subset of B then C-B is a Subset of C-A | Set Theory

If A is a subset of B then C-B (the relative complement of B with respect to C) is a subset of C-A. We prove this basic set theory result in today's set theory lesson!

Intro to Sets:    • An Introduction to Sets (Set Theory)  
Lesson on subsets:    • What is a Subset?  
Proof that A' is a Subset of B iff AUB is the universal set:    • Proof: A' is a Subset of B iff AUB is...  
Why the empty set is a subset of every set:    • Why is the Empty Set a Subset of Ever...  

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I hope you find this video helpful, and be sure to ask any questions down in the comments!

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The outro music is by a favorite musician of mine named Vallow, who, upon my request, kindly gave me permission to use his music in my outros. I usually put my own music in the outros, but I love Vallow's music, and wanted to share it with those of you watching. Please check out all of his wonderful work.

Vallow Bandcamp: https://vallow.bandcamp.com/
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