IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At:
order functionality wrt iff1 1. T : Type
2. R : TTProp
3. R' : TTProp
4. x,y:T. R(x,y) R'(x,y)
Refl(T;x,y.R(x,y)) & (Trans x,y:T. R(x,y)) & AntiSym(T;x,y.R(x,y))
Refl(T;x,y.R'(x,y)) & (Trans x,y:T. R'(x,y)) & AntiSym(T;x,y.R'(x,y))