is mentioned by

Thm* a:Id, l:IdLnk, tg:Id. locl(a) = rcv(l; tg)  False	[not_locl_rcv]
Thm* a:Id, l:IdLnk, tg:Id. rcv(l; tg) = locl(a)  False	[not_rcv_locl]

Try larger context: EventSystems IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html