While Henry's solution is somewhat brilliant, dont overlook straightforward 2 (- (2 : 'u@:v : (u v)') +:) 5
_8 which is your official replacement for missing ]. and [. BTW, I always found gerund cases of } and ^: arbitrary, illogical and hard to remember. For me "logical" would be something along the lines of: 1. Verbs inside gerund are applied monadically if composite verb is monadic context, dyadically otherwise. 2. 2 element gerunds create monadic case (g1} g2) and 3 element gerunds create dyadic case (g1 g2} g3) Is there justification for actual case? > From: Don Guinn <dongu...@gmail.com> > > Thanks. Had not really understood the gerund form for Power until now. > > On Friday, July 6, 2012, Henry Rich <henryhr...@nc.rr.com> wrote: > > That's my 'bivalent': > > > > u^:(1:`(]v)) > > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm