[jjtheblunt]

may i ask which lisp variant you are using?

[jksmith]

Franz Allegro toolchain.

[jjtheblunt]

Is it preferable to Lispworks?

[jksmith]

I personally don't know anything about LispWorks except for the name. My pref for Franz is the commercial quality and the toolchain. If you have forgotten your graph fundamentals, Allegro Graph will make you want to get back into it. Very powerful tool for proofs and modeling the world.

[jjtheblunt]

makes sense. i have kept a valid mathematica license since the dawn of mathematica time (1988) for such trickery.