IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
connex iff trichot T:Type, R:(TTProp).
(a,b:T. Dec(R(a,b)))
(Connex(T;x,y.R(x,y))
( ((a,b:T.
((strict_part(x,y.R(x,y);a;b)
(( Symmetrize(x,y.R(x,y);a;b)
(( strict_part(x,y.R(x,y);b;a)))