Lecture 12: More on range, null, injective, surjective, and rank-nullity

[juanlemod]

It’s 2022. I’m struggling in upper-division Proof-Based Linear Algebra. I earned an A in lower-division Linear Algebra since it was computational-based for the most part, but writing proofs is a whole another beast.

This comment may be years late, but this video has been very helpful. Thank you for sharing.

[lucasm]

so its called the rank nullity theorem but you still use range/image instead of rank to define "dim(range(V))"