thinkbayes DocBook: \p{} command yields huge inline formulas about thinkstats HOT 3 CLOSED

The problem seems to be that the content of an ensuremath environment was not 
getting translated (so it was rendered as an image).  I modified 
tree_cleaner.py and that seems to have done the job.

However, on page 3, the formula at the bottom of the page has a leading }} for 
some reason.

\o wasn't working either, apparently because the renewcommand did not succeed 
in changing the behavior of \o

I am working around this problem by using \odds instead.