Off the top of my head I have no idea, but that's a really
fun question, Dan!
Dan Asimov <dasimov(a)earthlink.net> writes:
>Topology puzzle:
>
>Determine whether or not the topological space Y x Y
>(the cartesian product of two Y-shaped spaces, each
>the union of 3 closed intervals) can be embedded as
>a subset of 3-space.
>
>--Dan
