Def xdom(f). v=f(x)   P(x;v) == x:A. x  dom(f)  P(x;f(x))

is mentioned

In prior sections: mb event system 4 mb event system 5 mb event system 6

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