Def enum1_el1 => body cont(x,z)
Def == InjCase(if x=0 inl(*) ; inr(*) fi ; body; cont(z,z))

is not otherwise mentioned in this or prior sections.

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