mistake in formula arg min
I think the arg min went missing after the second equation sign here: https://gitlab.jsc.fz-juelich.de/MLDL_FZJ/juhaicu/jsc_public/sharedspace/teaching/intro_scalable_deep_learning/course-material/-/blob/main/lectures/Day2/Lecture1/Slides/Slides.tex#L431
Day 2, Lecture 1, Slide 19/20