>according to theorem (arbitrary number that doesn't even match the chapter it's in)...
>The proof is trivial
Fuck you I paid money for this book
>Check the back of the book for answer
>Get it wrong because the book left out a tiny bit of information that you now have to find online
It's so frustrating it makes me want to hurt myself.
>It is obvious that X and if it isn't obvious to you then you will never be a mathematician.
Well fuck you, book.