Who Cites band?
band	Def pq == if p q else false fi
	Thm* p,q:. (pq)
bfalse	Def false == inr()
	Thm* false
ifthenelse	Def if b t else f fi == InjCase(b ; t; f)
	Thm* b:, A:Type, p,q:A. if b p else q fi  A

Syntax:

pq

has structure:

band(p; q)

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