Right, sure. This is indeed copy-pasted from LyX, which is a saviour. Manually written, TeX can be better. But as soon as anything gets complicated, you're gonn

Right, sure. This is indeed copy-pasted from LyX, which is a saviour. Manually written, TeX can be better. But as soon as anything gets complicated, you're gonna be stuck again. The problem is not understanding something conceptually. It's intuiting it. I want my brain to be working on the maths. I don't want to use valuable brain cycles understanding the notation!