show/hide this revision's text 2 Corrected the interchange of X and Y; added 1 characters in body

Use $\sum 2^{-n}(\|x-y\|_n \wedge 1)$ for the distance on $X$ Y$ and `$\sum $\sum 2^{-n}(\|x-y\|_n \wedge 2)$ for the distance on $Y$. X$.

show/hide this revision's text 1

Use $\sum 2^{-n}(\|x-y\|_n \wedge 1)$ for the distance on $X$ and `$\sum 2^{-n}(\|x-y\|_n \wedge 2)$ for the distance on $Y$.