Def x:A. B(x) == x:AB(x)

is mentioned

In prior sections: core well fnd int 1 bool 1 rel 1 union fun 1 int 2 list 1 sqequal 1 NuprlPrimitives

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html