There is a MISTAKE on the formula of the minute 32:31. It must be S(Λ^100)c in order to work as it is supposed. However it is an excellent lecture, thanks a lot. :)####[['formula', 'Mathematical_Related_Concept', 'NEG'], ['lecture', 'Course_General_Feedback', 'POS'], ['it', 'Course_General_Feedback', 'POS']]