The eighth class in Dr Joel Feinstein's G12MAN Mathematical Analysis module further provides a careful justification of statements concerning interior and non-interior points, with examples.
Further module materials are available for download from The University of Nottingham open courseware site: http://unow.nottingham.ac.uk/resource... and on iTunes U: http://itunesu.nottingham.ac.uk/album...
Dr Feinstein's blog may be viewed at: http://explainingmaths.wordpress.com
Dr Joel Feinstein is an Associate Professor in Pure Mathematics at the University of Nottingham.