
Re: Willard's Notable Notation
Posted:
Aug 1, 2013 6:29 PM


William Elliot <marsh@panix.com> wrote: > On p270 of Willard's "General Topology" he writes: > for mu a nuniformity, if U,V in mu, then > { A /\ B  A in B  A in U, B in V } > is also in mu. > > What the heck is he talking about? How can A be in B? > Does he mean, { A /\ B  A in B and A in U, B in V } ?
Most likely the whole thing is a misprint and he means
{ A /\ B  A in U, B in V }
 Marc

