mb event system 2 Sections EventSystems Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
Def outl(x) == InjCase(xyyz. "???")

is mentioned by

Def tag(k) == 2of(outl(k))[tagof]
Def lnk(k) == 1of(outl(k))[lnk]

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

mb event system 2 Sections EventSystems Doc