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tags: Teaching
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# Materials for Oct. 25 substitute

[Induced transformation](http://y7y.cc?22)
[Injective, Surjective and Endomorphism](http://y7y.cc?5)

### Who am I

I am Qirui Li, a postdoc, will teach MAT224 next semester.

Here you would find some useful material for linear algebra

[Slides For MAT224](http://syllabus.y7y.cc)