Who Cites w-when?
w-when	Def (x when e) == s(1of(e);2of(e)).x
w-s	Def s(i;t).x == 1of(2of(2of(2of(w))))(i,t,x)
pi2	Def 2of(t) == t.2
	Thm* A:Type, B:(AType), p:(a:AB(a)). 2of(p)  B(1of(p))
pi1	Def 1of(t) == t.1
	Thm* A:Type, B:(AType), p:(a:AB(a)). 1of(p)  A

Syntax:

(x when e)

has structure:

w-when(w; x; e)

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