Linear Algebra 11j: The Associative Property (a.k.a. Associativity) of Matrix Multiplication

[Andygg]

Hello Mr. Grinfeld, my name is Andrew and I am currently a sophomore mathematics student studying at the University of Utah. This semester has been difficult to say the least and I cannot express how thankful I am for your videos. I have always loved mathematics and after taking on a bit more than I was prepared for this semester, I was finding my love for the subject to be increasingly difficult to maintain. Your video series have been exceptionally thorough and I sincerely appreciate you taking the time to deeply cover areas of the subject often minimally explained in class. I noticed in this video that you mentioned a series of proof videos you have posted, however, I am not sure where those videos exist. If you could please provide me some direction I would love to take a look at them. Thanks again and best wishes. :)

[mirkodobrota]

for ordinari n=: (ab)c = a(cb) and also = (ac)b. thru Not for matrices in example

[adrianott]

Did you record the proof of the associatvie property? Cant seem to find it!