- #1

- 4,699

- 369

https://web.stanford.edu/class/math285/ts-gmt.pdf

on page 2 in remark 1.5(1), it's written that:

##\cap_{j=1}^\infty A_j = X\setminus (X\setminus \cup_{j=1}^\infty A_j)##

this seems totally wrong, shouldn't it be ##X\setminus \cup_{j=1}^\infty (X\setminus A_j)## ?

I wonder if this book has other such pitfalls...