[plt-scheme] stupid SLaTeX question

How do you get an identifier to be treated as both a constant and a
variable in the same {schemedisplay}?  It's a verbatim environment, so
you can't use \setvariable inside, but if you split the expression
over multiple {schemedisplay}s, there's a blank line in between.

(Yes, I can rename the variable, but I'm curious if this can be done.)

--dougo at place.org