Equations and figures as descendants of an example

[Erik Leunissen <e.leunissen@hccnet.nl>]

Hi all,

I've construed a docbook 5.0 xml document whose structure appears to be 
invalid because it holds <equation>'s and <figure>'s as descendants of 
an <example>.

- I'm curious about the rationale regarding this being invalid.

- Are there any suggestions for valid alternatives?

Right now, just ignoring that the structure is invalid, doesn't pose a 
any problem to processing this document to FO (using xsltproc), and 
subsequently to PDF (using FOP). The PDF is nice with equations and 
figures in example.

But can I expect problems in the future when ignoring that the structure 
is invalid?


Thanks in advance for any insight,

Erik Leunissen.