Text does not show up in post

I recently moved from wordpress.com to my own site. The text of two old posts now is not rendered when you view them. One is here:

http://www.abstractmath.org/Word%20Press/?p=1128

I have copied and posted the entire html of the text here.

http://www.abstractmath.org/Support/Word%20Press/TDMO8.html

Note that it is rendered correctly (including pictures) except of course it doesn’t have access to WP’s TeX rendering.

I hope someone can figure out why this is happening.