Re: topology and compact sets

From: Zdislav V. Kovarik (kovarik_at_mcmaster.ca)
Date: 03/16/05 

Date: Wed, 16 Mar 2005 12:13:13 -0500

On Wed, 16 Mar 2005, Dave Rusin wrote:

> In article <SbXZd.396$0O.329@fe51.usenetserver.com>,
> Igor Khavkine <igor.kh@gmail.com> wrote:
>
> > Is your set {x in X : f(x) leq c} open or closed?
>
> The teacher in me insists that you phrase your hint something like,
>
> > Is your set {x in X : f(x) leq c} open? Or closed? Or... ?
>
> No sense reinforcing a common misunderstanding.
> dave

Is the set ajar?...:-)=

Cheers, ZVK(Slavek)