On Dec 5, 2007 5:40 PM, Paulo J. Matos <pocm at soton.ac.uk> wrote: > Oh, but lfpaths is not nothing so that means that isNothing rtpaths > shouldn't be evaluated, right? You're right, and I was stupid not to think about that case. Since Luke already gave an in-depth analysis I'll be quiet now :-) - Benja