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

Syntax:

vartype(i;x)

has structure:

w-vartype(w; i; x)

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